CN106541811B - A kind of panzer car door double-layer sealing structure and welding and assembling method - Google Patents
A kind of panzer car door double-layer sealing structure and welding and assembling method Download PDFInfo
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- CN106541811B CN106541811B CN201611122243.8A CN201611122243A CN106541811B CN 106541811 B CN106541811 B CN 106541811B CN 201611122243 A CN201611122243 A CN 201611122243A CN 106541811 B CN106541811 B CN 106541811B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
- B62D65/06—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components the sub-units or components being doors, windows, openable roofs, lids, bonnets, or weather strips or seals therefor
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Abstract
The present invention relates to a kind of panzer car door double-layer sealing structures, including car door ontology, vehicle body, body hinge, it is characterized in that：Car door ontology is made of door-plate, door lock gusset and ring muscle, and external seal strip is combined on the outside of ring muscle, and external seal strip is close to vehicle body, forms first layer sealing structure；Vehicle body is equipped with doorframe and lock box gusset, and interior sealing item is combined on doorframe, and interior sealing item is close to ring muscle, forms second layer sealing structure.The invention further relates to a kind of welding and assembling methods of panzer car door double-layer sealing structure, including：Make component；Be welded car door ontology；Be welded doorframe；Fit a door ontology；Assemble sealing strip；Adjustment car door；Detect leakproofness.The present invention can ensure the good sealing effect of panzer car door, avoid the occurrence of infiltration phenomenon；It can solve the problems, such as ring muscle, doorframe, door-plate difficult forming, reduce the welding deformation of car door ontology, improve the accuracy and consistency of panzer car door welding equipment, to ensure the quality of panzer, promote efficiency of assembling.
Description
Technical field
The present invention relates to a kind of panzer car door double-layer sealing structure and welding and assembling methods.
Background technology
In recent years, domestic panzer industry development is rapid, and the demand of panzer is also increasing, panzer car door conduct
One of core component of panzer, sealing effect, production efficiency and quality will influence the production efficiency of entire panzer product
And quality.Existing panzer door seal structures, it is shown in Figure 1, including former car door ontology 1, former body hinge, former vehicle body
2, former sealing strip 3, former car door ontology 1 are connect by former body hinge with former vehicle body 2, shape between former car door ontology 1 and former vehicle body 2
At the first gap a of 4mm, the inside welding equipment one of former vehicle body 2 encloses former reinforcing rib 4, which is " L " shaped steel, former reinforcing rib
4 form the second gap b of 16mm with former car door ontology 1, by installing former sealing strip 3 on the former reinforcing rib 4 on former vehicle body 2,
Realize the sealing of panzer car door at closing time.Since former car door ontology or former vehicle body will appear foozle in process,
Lead between former car door ontology and former sealing strip that there are larger gaps, so as to cause poor sealing；Simultaneously because former sealing strip 3
It is easily damaged, infiltration phenomenon occurs.Therefore it needs to be improved existing panzer door seal structures.
Invention content
The object of the present invention is to provide a kind of panzer car door double-layer sealing structure and welding and assembling methods, can ensure panzer
The good sealing effect of car door, avoids the occurrence of infiltration phenomenon；It can solve the problems, such as ring muscle, doorframe, door-plate difficult forming, reduce
The welding deformation of car door ontology, the accuracy and consistency for improving panzer car door welding equipment carry to ensure the quality of panzer
Rise efficiency of assembling.
A kind of panzer car door double-layer sealing structure of the present invention, including car door ontology, vehicle body are set on the vehicle body
There are door opening, the car door ontology and the door opening corresponding matching on vehicle body, and passes through the door opening side on body hinge and the vehicle body
Edge connects；It is characterized in that：The car door ontology by door-plate, the inner surface center edge portion for being located at the door-plate door lock gusset and set
It is constituted in the ring muscle of the inner surface periphery of the door-plate, the ring muscle uses " π " section steel manufacture, and on the outside of the ring muscle
It is connected with external seal strip, the external seal strip is close to the vehicle body, forms first layer sealing structure；The door of the vehicle body
Hole edge is equipped with doorframe and lock box gusset, and the lock box gusset is corresponding with the door lock gusset, the doorframe and the car door sheet
Ring muscle on body corresponds to；The doorframe uses " Z " section steel manufacture, is overlapped by first layer doorframe and the dislocation of second layer doorframe,
In the interior sealing item that the overlapping part of the first layer doorframe and second layer doorframe is connected, the interior sealing item and the ring
Muscle correspondence is close to, and second layer sealing structure is formed.
Further, the ring muscle is formed by connecting by multi-section circular arc ring muscle and multistage straight line ring muscle.
Further, the door-plate Upper vertical, lower part are tilted to vehicle body.
A kind of welding and assembling method of panzer car door double-layer sealing structure of the present invention, including：
The first step makes component：
1) door-plate is molded, and door-plate is used bar folder bending forming；
2) ring muscle is molded；
3) first layer doorframe and the molding of second layer doorframe；
Second step, be welded car door ontology：
1) door lock gusset is welded, door lock gusset is welded on to the inner surface center edge portion of door-plate；
2) circular arc ring muscle and straight line ring muscle, are respectively welded to the inner surface periphery of door-plate by welding ring muscle, and when welding first adopts
With the welding manner welding wherein one section of ring muscle and door-plate outer edge weld seam of symmetrical spot welding, the weldering of symmetrical spot welding is then equally used
The mode of connecing welds this section of ring muscle and door-plate inside edge weld seam, then welds another section of adjacent ring muscle, then passes through low current short arc
Welding manner weld weld seam between adjacent two sections of ring muscle；
Third walks, and be welded doorframe：
1) lock box gusset is welded, lock box gusset is welded on to the door opening edge of vehicle body, ensures lock box gusset and door lock gusset
Position corresponds to；
2) first layer doorframe is welded, after first layer door frame welding is molded, then the door opening edge welding with vehicle body, welding
When, it is then same using symmetrical first using the welding manner of symmetrical discontinuous welding welding first layer doorframe and door opening inward flange weld seam
Welding manner welding first layer doorframe and the door opening outer edge weld seam of discontinuous welding, will using the welding manner of low current short arc welding
The welding corresponding with the both ends of first layer doorframe of the both ends of lock box gusset；
3) second layer doorframe is welded, after second layer door frame welding is molded, is ensureing first layer doorframe and second layer doorframe
Overlapping part alignment under the premise of, the weldering between second layer doorframe and first layer doorframe is welded using the welding manner of plug welding
Then seam uses the weld seam between discontinuous welding welding second layer doorframe and vehicle body；
4th step, fit a door ontology：
One end of body hinge is welded on car door ontology, the other end is welded on vehicle body, ensures car door using briquetting
Relative position size between ontology and vehicle body；Hinge welding tooling is used simultaneously, ensures body hinge and the lower part on top
The concentricity and relative position size of body hinge；
5th step assembles sealing strip：
1) external seal strip is assembled, the outer edge of external seal strip and ring muscle is connected；
2) interior sealing item is assembled, the overlapping part of interior sealing item and first layer doorframe and second layer doorframe is connected；
6th step, adjustment car door：Briquetting is taken out after the completion of body hinge welding, preliminary corrections, peace are carried out to car door ontology
It is debugged again after dress door lock, and preliminary detection carries out door sealing using the method for translucency detection；
7th step detects leakproofness：Between vehicle is moved to salt fog test, and by the rainfall sizes of relevant regulations, the time into
Row salt fog test detects door sealing effect.
The beneficial technique effect of the present invention：Due to designing ring muscle on car door ontology, external seal strip is assembled on ring muscle；?
First layer doorframe and second layer doorframe are designed on vehicle body, interior sealing item is assembled on doorframe so that panzer car door has good
Sealing effect, avoid the occurrence of infiltration phenomenon；Due to using welding and assembling method of the present invention, solve ring muscle, doorframe, door-plate
The problem of difficult forming, reduces the welding deformation of car door ontology, improves the accuracy and consistency of panzer car door welding equipment,
To ensure that the quality of panzer, efficiency of assembling is improved.
Description of the drawings
Fig. 1 is the structural schematic diagram of existing panzer door seal structures；
Fig. 2 is one of the structural schematic diagram of the present invention；
Fig. 3 is the second structural representation of the present invention；
Fig. 4 is the left view of Fig. 3；
Fig. 5 is the structural schematic diagram of car door ontology；
Fig. 6 is the left view of Fig. 5；
Fig. 7 is the attachment structure schematic diagram of first layer doorframe and lock box gusset and vehicle body；
Fig. 8 is the left view of Fig. 7；
Fig. 9 is the attachment structure schematic diagram of first layer doorframe, second layer doorframe and lock box gusset and vehicle body；
Figure 10 is the cross-section diagram of Fig. 9；
Figure 11 is one of structural schematic diagram of door-plate；
Figure 12 is the second structural representation of door-plate；
Figure 13 is one of the structural schematic diagram of door lock gusset；
Figure 14 is the second structural representation of door lock gusset.
In figure：1- original car door ontologies, 2- original vehicle bodies, 3- original sealing strips, 4- original reinforcing ribs；
The first gaps a-, the second gaps b-；
11- car door ontologies, 12- body hinges, 13- vehicle bodies, 14- briquettings；
111- door-plates, 112- door lock gussets, 113- ring muscle, 114- external seal strips, 115- circular arc ring muscle, 116- straight line rings
Muscle；
131- interior sealing items, 132- first layer doorframes, 133- second layer doorframes, 134- lock box gussets；
21- rings muscle and door-plate outer edge weld seam, 22- rings muscle and door-plate inside edge weld seam weld between the adjacent two sections of ring muscle of 23-
Seam, 24- first layers doorframe and door opening inward flange weld seam, 25- first layers doorframe and door opening outer edge weld seam；
C- door lock gusset inner faces and the outer peripheral distance of door-plate；D- ring muscle inner faces and the outer peripheral distance of door-plate；e-
The distance between ring muscle and doorframe；F- car door ontologies are at a distance from vehicle body；G- external seal strips center and the outer peripheral distance of door-plate.
Specific implementation mode
It elaborates to the present invention below in conjunction with drawings and examples.
Referring to a kind of panzer car door double-layer sealing structure shown in Fig. 2 to Figure 14, including car door ontology 11, vehicle body 13,
The vehicle body 13 is equipped with door opening, the car door ontology 11 and the door opening corresponding matching on vehicle body 13, and passes through body hinge 12
It is connect with the door opening edge on the vehicle body 13；Its substantive distinguishing features outstanding is：The car door ontology 11 by door-plate 111, set
In the ring muscle of the door lock gusset 112 and the inner surface periphery for being located at the door-plate 111 of the inner surface center edge portion of the door-plate 111
113 are constituted, and the ring muscle 113 uses " π " section steel manufacture, and is being connected with external seal strip close to 113 outside of the ring muscle
114, the external seal strip 114 is close to the vehicle body 13, forms first layer sealing structure；The door opening edge of the vehicle body 13 is set
There are doorframe and lock box gusset 134, the lock box gusset 134 is corresponding with the door lock gusset 112, the doorframe and the car door sheet
Ring muscle 113 on body 11 corresponds to；The doorframe uses " Z " section steel manufacture, wrong by first layer doorframe 132 and second layer doorframe 133
Position overlap, the overlapping part of the first layer doorframe 132 and second layer doorframe 133 be connected interior sealing item 131,
The interior sealing item 131 is corresponding with the ring muscle 113 to be close to, and second layer sealing structure is formed.
Referring to Fig. 5, the ring muscle 113 is formed by connecting by multi-section circular arc ring muscle 115 and multistage straight line ring muscle 116.
Referring to Figure 11, Figure 12,111 Upper vertical of the door-plate, lower part are tilted to vehicle body.
When closing panzer car door, external seal strip 114 is close to vehicle body 13, forms the first sealing structure；Interior sealing item 131
It is close to ring muscle 113, forms second seals structure；It can ensure the good leakproofness of panzer car door, it is existing to avoid the occurrence of infiltration
As.
A kind of welding and assembling method of panzer car door double-layer sealing structure, including：
The first step makes component：
1) door-plate is molded, and door-plate 111 is used bar folder bending forming；
2) ring muscle is molded；
3) first layer doorframe and the molding of second layer doorframe.
As shown in Figure 11, Figure 12, door-plate 111 is led to using import Sweden steel plate DOMEX Protect500 armour plates
It crosses 1600T benders and carries out bending and molding, and analysis comparison is carried out to bending coefficient, ensure 111 final molding angle of door-plate.Ring
The straightway of muscle 113, first layer doorframe 132 and second layer doorframe 133 uses roll forming, arc section and warp surface to use punching press
Molding ensures forming parts accuracy and consistency.Ring muscle 113, first layer doorframe 132 and second layer doorframe 133 are all made of
St14 steel plates are made.
Second step, be welded car door ontology：
1) door lock gusset is welded, door lock gusset 112 is welded on to the inner surface center edge portion of door-plate 111；
2) circular arc ring muscle 115 and straight line ring muscle 116 are respectively welded to the inner surface periphery of door-plate 111 by welding ring muscle, weldering
First using the welding manner of symmetrical spot welding welding wherein one section of ring muscle and door-plate outer edge weld seam 21 when connecing, then it is same using pair
Claim the welding manner of spot welding to weld this section of ring muscle and door-plate inside edge weld seam 22, then weld another section of adjacent ring muscle, then leads to
The welding manner of too little current short arc welds weld seam 23 between adjacent two sections of ring muscle.
Before welding, door-plate 111 is placed on the mould for preventing welding deformation, the purpose is to prevent welding process middle door-plate
Deformation.When welding door lock gusset 112, ensure that door lock gusset inner face and the outer peripheral distance c of door-plate are 84mm.In welding ring
When muscle 113, ensure that ring muscle inner face and the outer peripheral distance d of door-plate are 57.5mm.It, can be with to reinforce the intensity of car door ontology 11
Increase reinforcing rib on door-plate 111, using the welding manner welding of staggered intermittent weldering between reinforcing rib and door-plate 111.Due to ring
Muscle 113 is that multi-section circular arc ring muscle 115 and multistage straight line ring muscle 116 are welded, and the welding method and step can reduce to the greatest extent
The welding deformation of car door ontology 11, the efficiency that is welded for ensureing welding precision, improving car door ontology.
Third walks, and be welded doorframe；
1) weld lock box gusset, lock box gusset 134 be welded on to the door opening edge of vehicle body 13, ensure lock box gusset 134 with
112 position of door lock gusset corresponds to；
2) first layer doorframe is welded, is welded after 132 welding fabrication of first layer doorframe, then with the door opening edge of vehicle body 13,
When welding, first using the welding manner of symmetrical discontinuous welding welding first layer doorframe and door opening inward flange weld seam 24, then equally adopt
With the welding manner welding first layer doorframe and door opening outer edge weld seam 25 of symmetrical discontinuous welding, the weldering welded using low current short arc
Mode is connect by the welding corresponding with the both ends of first layer doorframe 132 of the both ends of lock box gusset 134；
3) second layer doorframe is welded, after 133 welding fabrication of second layer doorframe, is ensureing first layer doorframe 132 and second
Under the premise of the overlapping part alignment of layer doorframe 133, using welding manner welding second layer doorframe and the first layer doorframe of plug welding
Between weld seam, then use the weld seam between discontinuous welding welding second layer doorframe 133 and vehicle body 13.
The welding method and step of doorframe can solve doorframe welding equipment difficulty, and after welding, and doorframe correction is difficult
The problem of.
4th step, fit a door ontology：
One end of body hinge 12 is welded on car door ontology 11, the other end is welded on vehicle body 13, utilizes briquetting 14
(or equal height cushion block) ensures the relative position size between car door ontology 11 and vehicle body 13；Hinge Welder is used simultaneously
Dress, ensures the concentricity and relative position size of the body hinge on top and the body hinge of lower part.Ensure car door ontology and vehicle
The distance f of body is 10mm；Ensure that the distance between ring muscle and doorframe e are 13mm.
5th step assembles sealing strip：
1) external seal strip is assembled, the outer edge of external seal strip 114 and ring muscle 113 is connected；
2) interior sealing item is assembled, by the overlapping part of interior sealing item 131 and first layer doorframe 132 and second layer doorframe 133
It is connected.
When assembling external seal strip 114, ensure that external seal strip center and the outer peripheral distance g of door-plate are 11mm.
6th step, adjustment car door：Briquetting 14 is taken out after the completion of the welding of body hinge 12, preliminary school is carried out to car door ontology 11
Just, it is debugged again after door lock being installed, and preliminary detection carries out door sealing using the method for translucency detection.Adjustment
Car door can debug car door to product design requirement, and product is made once to hand over inspection qualification rate up to 97%.
7th step detects leakproofness：Between vehicle is moved to salt fog test, and by the rainfall sizes of relevant regulations, the time into
Row salt fog test detects door sealing effect.If any infiltration phenomenon, reply car door is finely adjusted, until qualified.Leakproofness
Experiment can effectively detect the sealing effect of car door, and probability is reprocessed in reduction.
The present invention can ensure the good sealing effect of panzer car door, avoid the occurrence of infiltration phenomenon；Can solve ring muscle,
The problem of doorframe, door-plate difficult forming, reduces the welding deformation of car door ontology, improves the accuracy and one of panzer car door welding equipment
Cause property promotes efficiency of assembling to ensure the quality of panzer.
Claims (1)
1. a kind of welding and assembling method of panzer car door double-layer sealing structure, the panzer car door double-layer sealing structure being welded includes vehicle
Door body (11), vehicle body (13), the vehicle body (13) are equipped with door opening, the car door ontology (11) and the door opening on vehicle body (13)
Corresponding matching, and connect with the door opening edge on the vehicle body (13) by body hinge (12)；The car door ontology (11) by
Door-plate (111), be located at the door-plate (111) inner surface center edge portion door lock gusset (112) and be located at the door-plate (111)
The ring muscle (113) of inner surface periphery constitute, the ring muscle (113) uses " π " section steel manufacture, and close to the ring muscle
(113) outside is connected with external seal strip (114), and the external seal strip (114) is close to the vehicle body (13), forms first
Layer sealing structure；The door opening edge of the vehicle body (13) be equipped with doorframe and lock box gusset (134), the lock box gusset (134) with
The door lock gusset (112) is corresponding, and the doorframe is corresponding with ring muscle (113) on the car door ontology (11)；The doorframe is adopted
With " Z " section steel manufacture, overlapped by first layer doorframe (132) and second layer doorframe (133) dislocation, in the first layer doorframe
(132) and the interior sealing item (131) that is connected of the overlapping part of second layer doorframe (133), the interior sealing item (131) and institute
It states ring muscle (113) correspondence to be close to, forms second layer sealing structure；The ring muscle (113) is by multi-section circular arc ring muscle (115) and multistage
Straight line ring muscle (116) is formed by connecting；Door-plate (111) Upper vertical, lower part are tilted to vehicle body；The panzer car door is double
The welding and assembling method of layer sealing structure, including：
The first step makes component：
1) door-plate is molded, and door-plate (111) is used bar folder bending forming；
2) ring muscle is molded；
3) first layer doorframe and the molding of second layer doorframe；
Second step, be welded car door ontology：
1) door lock gusset is welded, door lock gusset (112) is welded on to the inner surface center edge portion of door-plate (111)；
2) circular arc ring muscle (115) and straight line ring muscle (116) are respectively welded to the inner surface periphery of door-plate (111) by welding ring muscle,
It is first then equally adopted using the welding manner of symmetrical spot welding welding wherein one section of ring muscle and door-plate outer edge weld seam (21) when welding
This section of ring muscle and door-plate inside edge weld seam (22) are welded with the welding manner of symmetrical spot welding, then welds another section of adjacent ring muscle,
Then pass through weld seam (23) between the adjacent two sections of ring muscle of the welding manner of low current short arc welding；
Third walks, and be welded doorframe：
1) lock box gusset is welded, lock box gusset (134) is welded on to the door opening edge of vehicle body (13), ensures lock box gusset (134)
It is corresponding with door lock gusset (112) position；
2) first layer doorframe is welded, is welded after first layer doorframe (132) welding fabrication, then with the door opening edge of vehicle body (13),
When welding, first using the welding manner of symmetrical discontinuous welding welding first layer doorframe and door opening inward flange weld seam (24), then equally
Using the welding manner welding first layer doorframe and door opening outer edge weld seam (25) of symmetrical discontinuous welding, welded using low current short arc
Welding manner by the both ends of lock box gusset (134) it is corresponding with the both ends of first layer doorframe (132) welding；
3) second layer doorframe is welded, after second layer doorframe (133) welding fabrication, is ensureing first layer doorframe (132) and second
Under the premise of the overlapping part alignment of layer doorframe (133), using welding manner welding second layer doorframe and the first layer door of plug welding
Then weld seam between frame uses the weld seam between discontinuous welding welding second layer doorframe (133) and vehicle body (13)；
4th step, fit a door ontology：
One end of body hinge (12) is welded on car door ontology (11), the other end is welded on vehicle body (13), utilizes briquetting
(14) ensure the relative position size between car door ontology (11) and vehicle body (13)；While hinge welding tooling is used, in guarantee
The concentricity and relative position size of the body hinge in portion and the body hinge of lower part；
5th step assembles sealing strip：
1) external seal strip is assembled, the outer edge of external seal strip (114) and ring muscle (113) is connected；
2) interior sealing item is assembled, by the overlapping portion of interior sealing item (131) and first layer doorframe (132) and second layer doorframe (133)
Position is connected；
6th step, adjustment car door：Briquetting (14) is taken out after the completion of body hinge (12) welding, car door ontology (11) is carried out preliminary
Correction is debugged again after installing door lock, and preliminary detection is carried out to door sealing using the method for translucency detection；
7th step detects leakproofness：Between vehicle is moved to salt fog test, and drenched by the rainfall size of relevant regulations, time
Rain is tested, and door sealing effect is detected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611122243.8A CN106541811B (en) | 2016-12-08 | 2016-12-08 | A kind of panzer car door double-layer sealing structure and welding and assembling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611122243.8A CN106541811B (en) | 2016-12-08 | 2016-12-08 | A kind of panzer car door double-layer sealing structure and welding and assembling method |
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| CN106541811A CN106541811A (en) | 2017-03-29 |
| CN106541811B true CN106541811B (en) | 2018-10-30 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893612A (en) * | 2017-12-14 | 2018-04-10 | 株洲联诚集团控股股份有限公司 | A kind of door component |
| CN108274981B (en) * | 2018-02-24 | 2023-12-22 | 北京汽车集团越野车有限公司 | Automobile door structure and automobile |
| CN110406616A (en) * | 2019-06-20 | 2019-11-05 | 中山市顺达客车有限公司 | A kind of passenger doors mounting process |
| CN113212603B (en) * | 2021-03-25 | 2022-04-19 | 东风越野车有限公司 | White body rain sealing control method for armored protection special vehicle |
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|---|---|---|---|---|
| GB2327451A (en) * | 1997-07-16 | 1999-01-27 | Draftex Ind Ltd | A sealing strip where the sealing member is a hollow chamber with an internal reinforcing wall |
| CN202593245U (en) * | 2012-04-23 | 2012-12-12 | 东风小康汽车有限公司重庆分公司 | Automotive front door structure assembly with double-layer sealing structure |
| CN202945978U (en) * | 2012-11-19 | 2013-05-22 | 西安西开中低压开关有限责任公司 | Double-layer sealing structure of outdoor control box door |
| CN204109757U (en) * | 2014-09-19 | 2015-01-21 | 南京金龙客车制造有限公司 | Side door of passenger car sealing arrangement |
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- 2016-12-08 CN CN201611122243.8A patent/CN106541811B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2327451A (en) * | 1997-07-16 | 1999-01-27 | Draftex Ind Ltd | A sealing strip where the sealing member is a hollow chamber with an internal reinforcing wall |
| CN202593245U (en) * | 2012-04-23 | 2012-12-12 | 东风小康汽车有限公司重庆分公司 | Automotive front door structure assembly with double-layer sealing structure |
| CN202945978U (en) * | 2012-11-19 | 2013-05-22 | 西安西开中低压开关有限责任公司 | Double-layer sealing structure of outdoor control box door |
| CN204109757U (en) * | 2014-09-19 | 2015-01-21 | 南京金龙客车制造有限公司 | Side door of passenger car sealing arrangement |
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| Publication number | Publication date |
|---|---|
| CN106541811A (en) | 2017-03-29 |
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Effective date of registration: 20190117 Address after: 401321 Yudong Dajiangxi Road, Banan District, Chongqing City, No. 220 Patentee after: Chongqing Dajiang Zhifang Special Equipment Co., Ltd. Address before: 401321 Dajiang Industrial Park, Yudong Town, Banan District, Chongqing Patentee before: Chongqing Dajiang Industrial Co., Ltd. |