CN106206139A - Rocker switch - Google Patents
Rocker switch Download PDFInfo
- Publication number
- CN106206139A CN106206139A CN201610606091.2A CN201610606091A CN106206139A CN 106206139 A CN106206139 A CN 106206139A CN 201610606091 A CN201610606091 A CN 201610606091A CN 106206139 A CN106206139 A CN 106206139A
- Authority
- CN
- China
- Prior art keywords
- sealing member
- panel
- press box
- seesaw
- splenium
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 96
- 239000002390 adhesive tape Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000003570 air Substances 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 241001473780 Sideroxylon lanuginosum Species 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
- H01H23/02—Details
- H01H23/04—Cases; Covers
- H01H23/06—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
Landscapes
- Switch Cases, Indication, And Locking (AREA)
- Push-Button Switches (AREA)
Abstract
The present invention relates to a kind of rocker switch.It includes one for the panel being square being fixed on wall and a trim, this panel have one be installed on wall after be installed on wall towards the front and of people after towards the back side of wall, the corner of this panel is respectively equipped with a perforation being through to the back side from front, each perforation is furnished with one can be by the panel locking the 5th screw on wall, this trim is covered on the front of panel and covers four perforation, being clamped with a diaphragm seal between this trim and front of panel, this diaphragm seal covers four perforation.The present invention can play the effect of sealing by arranging diaphragm seal, eliminates the gap between trim and the front of panel, it is to avoid the moisture content in air enters perforation, has water-proof function.
Description
Technical field
The present invention relates to a kind of rocker switch.
Background technology
Rocker switch is installed on wall, generally comprises one for the panel being square being fixed on wall, this panel
Corner be respectively equipped with a perforation being through to the back side from front, each perforation is furnished with one can be by panel locking spiral shell on wall
Nail, in order to strengthen the terseness of outward appearance, is generally equipped with trim, and this trim is covered on the front of panel and covers four and wear
Hole.But, due to assembly relation reason between trim and the front of panel, there is certain gap, when running into wet climates
(" the going back to Nan Tian " of such as South China), it is easy that wall there will be " emitting water " phenomenon, the water on wall or the moisture content in air
Through the slit enters into perforation and corrodes screw, causes screw to get rusty impaired.
Summary of the invention
It is an object of the invention to provide a kind of rocker switch with water-proof function.
Above-mentioned purpose is achieved by the following technical solution:
A kind of rocker switch, has for the panel being square being fixed on wall and a trim, this panel including one
Towards the back side of wall after after having one to be installed on wall, front and towards people is installed on wall, the corner of this panel is respectively
Being provided with a perforation being through to the back side from front, each perforation is furnished with one can be by the panel locking the 5th screw on wall, should
Trim is covered on the front of panel and covers four perforation, is clamped with a diaphragm seal between this trim and front of panel,
This diaphragm seal covers four perforation.
This technical scheme can play the effect of sealing by arranging diaphragm seal, eliminates between trim and the front of panel
Gap, it is to avoid moisture content in air enters perforation, has water-proof function.
Technique scheme can use following measure to be improved further:
This diaphragm seal is ring-type in side.
This rocker switch deformable first sealing member after also including a switch module being installed on panel, a stress,
Deformable second sealing member, one first press box and one second press box after one stress, the first sealing member, the second sealing member, first
Press box and the second press box are the most in the form of a ring；This panel is provided with opening, this switch module include one for control switch module open and
The seesaw of pass action, it is outer for people's pressing that seesaw is revealed in panel through opening；Seesaw is provided with a seesaw flange in the form of a ring, face
Plate is provided with a panel flange in the form of a ring, and seesaw flange is enclosed among panel flange；The outside edge quilt of the first sealing member
Be held between the first press box and panel flange, the inner side edge of the first sealing member be held in the second press box and seesaw flange it
Between；The cross section of the second press box is L-shaped, including orthogonal first splenium and the second splenium, the inner side edge of the first sealing member
Portion is held between the first splenium of the second press box and seesaw flange, and the second sealing member is held in the first press box and the second pressure
Between second splenium of frame.This technical scheme forms one dash by arranging panel flange, seesaw flange and the first sealing member
Wall, even if water, air or dust Ye Huibeigai road waterwall after the gap left between seesaw and panel opening enters blocks
Cut and cannot be introduced into inside wall, effectively protect the parts such as the switch module of wall inner face, electric appliance circuits, it is achieved be waterproof anti-
Dirt function.And by the first press box is set and the second press box install fix the first sealing member simple and reasonable for structure, be easy to
Assemble.This technical scheme is by arranging the second sealing member so that the first press box, the second press box and the second sealing member form second
Road waterwall, to play further water proof and dust proof effect, even if water, air or dust penetrate first waterwall also can be by
Second waterwall intercepts.The second press frame structure that the cross section of this technical scheme is L-shaped is simple, reasonable, be easy to assembling.
This first press box is provided with the first groove, and the second splenium of the second press box is provided with the second groove, the second sealing member
It is provided with first protuberance and being absorbed in the first groove and is absorbed in the second protuberance of the second groove.This technical scheme can play second
The positioning action of sealing member, it is to avoid the second sealing member is shifted over when seesaw activity, simultaneously convex by the first groove and first
The cooperation of the cooperation in portion, the second groove and the second protuberance can play the effect strengthening sealing.
The one side being close to the first press box of this second sealing member is pasted together by double faced adhesive tape and the first press box, and second is close
The one side of second splenium being close to the second press box of sealing is pasted together by the second splenium of double faced adhesive tape and the second press box.Should
Technical scheme make the second sealing member respectively with the first press box and the second splenium relative localization of the second press box, it is to avoid seesaw live
Time dynamic, the second sealing member is shifted over.
First sealing member and the second sealing member are elastic sealing element；Seesaw is in the unlatching of open state at a switch module
Position and a switch module are between the closed position of off status and switch；When seesaw is in the open position, the first sealing member
All make seesaw have with the second sealing member and switch to the trend of closed position from open position；When seesaw is in the closed position,
First sealing member and the second sealing member all make seesaw have the trend switching to open position from closed position.
The present invention can play the effect of sealing by arranging diaphragm seal, eliminates the seam between trim and the front of panel
Gap, it is to avoid the moisture content in air enters perforation, has water-proof function.
Accompanying drawing explanation
Fig. 1 shows the schematic perspective view of the present invention；
Fig. 2 shows another angle schematic perspective view of the present invention；
Fig. 3 shows the A portion partial enlarged drawing of Fig. 2；
Fig. 4 shows the perspective exploded view of the present invention；
Fig. 5 shows another angle perspective exploded view of the present invention；
Fig. 6 shows the schematic perspective view of the panel of the present invention；
Fig. 7 shows the schematic perspective view of first press box of the present invention；
Fig. 8 shows the schematic perspective view of the seesaw of the present invention；
Fig. 9 shows the schematic perspective view of second sealing member of the present invention；
Figure 10 shows the schematic perspective view of second press box of the present invention；
Figure 11 shows the schematic perspective view of first sealing member of the present invention；
Figure 12 show the present invention hide protection cap after schematic perspective view；
Figure 13 shows the B portion partial enlarged drawing of Figure 12；
Figure 14 shows the front view of the present invention；
Figure 15 shows the C-C sectional view of Figure 14；
Figure 16 shows the D-D sectional view of Figure 14；
Figure 17 shows the E portion partial enlarged drawing of Figure 15；
Figure 18 shows the F portion partial enlarged drawing of Figure 15；
Figure 19 shows the schematic diagram after decomposing each parts on the basis of Figure 17；
Figure 20 shows the schematic diagram after decomposing each parts on the basis of Figure 18；
Figure 21 shows the G portion partial enlarged drawing of Figure 15.
Detailed description of the invention:
Below in conjunction with the accompanying drawings embodiments of the invention are specifically described.
A kind of rocker switch as shown in Fig. 1 to Figure 21, including one for panel 1 He being square being fixed on wall
One trim 9, this panel 1 have one be installed on wall after be installed on wall towards the front 14 and of people after towards wall
The back side 15, the corner of this panel is respectively equipped with a perforation 17 being through to the back side from front, and each perforation is furnished with one can be by panel
The 5th screw 18 being locked on wall, this trim 8 is covered on the front 14 of panel and covers four perforation 17, this trim
And being clamped with a diaphragm seal 90 between the front of panel, this diaphragm seal covers four perforation 17.
This diaphragm seal 90 is ring-type in side.
This rocker switch also includes a switch module being installed on panel, and this panel is provided with opening 11, this switch module
Including one for controlling the seesaw 2 of the on an off action of switch module, seesaw 2 through opening 11 be revealed in panel outer for people by
Pressure, leaves gap 12 between edge and the opening 11 of seesaw 2 so that seesaw can be movable；
Deformable first sealing member 3,1 first press box 4 and one second press box 5, the first sealing member after also including a stress
3, the first press box 4 and the second press box 5 are the most in the form of a ring；
Seesaw 2 is provided with a seesaw flange 21 in the form of a ring, and panel 1 is provided with a panel flange 13 in the form of a ring, seesaw flange
21 are enclosed among panel flange 13；
The outside edge 31 of the first sealing member is held between the first press box 4 and panel flange 13 (the i.e. first press box general
The outside edge of the first sealing member is locked in panel flange), the inner side edge 32 of the first sealing member is held in the second press box 5
And between seesaw flange 21 (the inner side edge of the first sealing member is locked on seesaw flange by the i.e. second press box).
In the present embodiment, panel 1 have one when this panel is installed on wall towards the front 14 of people and one with should
The back side 15 of vis-a-vis, the direction from front to the back side is towards wall direction, panel flange 13 be located on the back side of panel and
Extending along towards wall direction, panel flange 13 also surrounds opening 11, and seesaw flange 21 is located on seesaw 2 and also along towards wall direction
Extend.
First press box the 4, second press box 5, seesaw flange 21 and panel flange 13 side of being are ring-type.
First press box 4 is locked on panel 1 removably by the first screw 41, and the second press box 5 is by second
Screw 51 is locked on seesaw 2 removably, and thus, it is movable that the second press box 5 follows seesaw 2.
Deformable second sealing member 6 after also including a stress, the second sealing member 6 is held in the first press box 4 and second
Between press box 5.
The cross section of the second press box 5 is L-shaped, and including orthogonal first splenium 52 and the second splenium 53, first seals
The inner side edge 32 of part is held between the first splenium 52 and the seesaw flange 21 of the second press box, and the second sealing member 6 is held
Between the first press box 4 and the second splenium 53 of the second press box.
In the present embodiment, the bearing of trend of the first splenium 52 of the second press box is parallel to towards wall direction, along towards wall side
To, the second splenium 53 of the second press box is positioned at the dead ahead of the first press box 4.
First press box 4 is provided with the first groove 42, and the second splenium 53 of the second press box is provided with the second groove 54, and second is close
Sealing 6 is provided with first protuberance 61 and being absorbed in the first groove 42 and is absorbed in the second protuberance 62 of the second groove 54.
The one side 63 being close to the first press box of the second sealing member 6 is glued with the first press box 4 by double faced adhesive tape (not shown)
Sticking together, the first protuberance 61 is located on this face 63；The one side 64 of second splenium being close to the second press box of the second sealing member is led to
The second splenium 53 crossing double faced adhesive tape (not shown) and the second press box is pasted together, and the second protuberance 62 is located on this face 64.
First sealing member 3 and the second sealing member 6 are elastic sealing element, such as gum elastic sealing member etc., this enforcement
In example, described elastic sealing element refer to possess the stress of sealing function after deformation and original shape can be recovered after active force loses
The object of shape；
Seesaw 2 is in the open position of open state and a switch module is in the closed position of off status at a switch module
Between switch；
When seesaw 2 is in the open position, the first sealing member 3 and the second sealing member 6 all make seesaw have from open position
Switch to the trend of closed position；
When seesaw 2 is in the closed position, the first sealing member 3 and the second sealing member 6 all make seesaw have from closed position
Switch to the trend of open position.
Specifically describing, the second sealing member in the form of a ring, has second sealing member the first limit, the second sealing that head and the tail are sequentially connected
Part the second limit, the second sealing member the 3rd limit and the second sealing member the 4th limit, the second splenium of the second press box has head and the tail phase successively
Second splenium the first limit, second splenium the second limit, the second splenium the 3rd limit and the second splenium the 4th limit even, wherein, the second pressure
The first limit, portion is corresponding with the second position, sealing member the first limit, and second splenium the second limit is corresponding with the second position, sealing member the second limit,
Second splenium the 3rd limit is corresponding with the second sealing member the 3rd position, limit, the second splenium the 4th limit and the second sealing member the 4th position, limit
Corresponding.When seesaw is in the open position, second sealing member the first limit is compressed on second splenium the first limit, and the second splenium the 4th limit
Stretching the second sealing member the 4th limit, so, the second sealing member will make seesaw have and switch to closed position from open position
Trend.When seesaw is in the closed position, second splenium the first limit stretches second sealing member the first limit, and the second splenium the 4th limit
Compressing the second sealing member the 4th limit, so, the second sealing member just makes seesaw have from closed position and switches to becoming of open position
Gesture.First sealing member can also use the principle such as the second sealing member to realize, when seesaw is in the open position, and the first sealing member
Seesaw is made to have the trend switching to closed position from open position；When seesaw is in the closed position, the first sealing member makes to stick up
Plate has the trend switching to open position from closed position.
First sealing member 3 and/or the second sealing member 6 can also be the packing cloths etc. of flexible seals, such as water proof and dust proof
Deng, in the present embodiment, described flexible seals refer to possess deformation after the stress of sealing function and after active force loses not
The object of original form can be recovered.
This switch module also includes that a body 7 being provided with circuit module, body 7 pass through the 3rd screw 71 with dismountable side
Formula is locked on the back side 15 being especially locked in panel on panel 1, and seesaw 2 is rotatably coupled (the most hinged) body 7；
Also including a protection cap 8, this protection cap 8 is covered on the back side 15 being especially covered on panel on panel 1, and this is opened
Body the 7, first sealing member the 3, first press box the 4, second press box 5 and the second sealing member 6 that close assembly are all enclosed in protection cap 8,
The outer wall of protection cap 8 is provided with multiple external cable that is available for and enters the cable-through hole 81 in protection cap.
This protection cap 8 is locked on panel 1 removably by the 4th screw 82.
In each cable-through hole 81, the edge surrounding this cable-through hole is provided with rubber parts 83；
Protection cap 8 is provided with rubber seal 84 with the joining place of panel 1.
This protection cap 8 is in square shape, and on this panel 1, the back side 15 of especially panel is provided with four rectangular-shaped locating pieces 16, often
One jiao of one locating piece 16 and protection cap 8 offsets.
Claims (6)
1. a rocker switch, has for the panel being square being fixed on wall and a trim, this panel including one
One be installed on wall after be installed on wall towards the front and of people after towards the back side of wall, the corner of this panel sets respectively
Having a perforation being through to the back side from front, each perforation is furnished with one can be by the panel locking the 5th screw on wall, this dress
Decorative cover is covered on the front of panel and covers four perforation, it is characterised in that: it is clamped with between this trim and front of panel
One diaphragm seal, this diaphragm seal covers four perforation.
Rocker switch the most according to claim 1, it is characterised in that: this diaphragm seal is ring-type in side.
Rocker switch the most according to claim 1, it is characterised in that:
This rocker switch deformable first sealing member after also including a switch module being installed on panel, a stress, one it is subject to
Deformable second sealing member, one first press box and one second press box, the first sealing member, the second sealing member, the first press box after power
With the second press box the most in the form of a ring；
This panel is provided with opening, and this switch module includes one for controlling the seesaw of the on an off action of switch module, seesaw warp
It is outer for people's pressing that opening is revealed in panel；
Seesaw is provided with a seesaw flange in the form of a ring, and panel is provided with a panel flange in the form of a ring, and seesaw flange is enclosed in face
Among plate flange；
The outside edge of the first sealing member is held between the first press box and panel flange, the inner side edge quilt of the first sealing member
It is held between the second press box and seesaw flange；
The cross section of the second press box is L-shaped, including orthogonal first splenium and the second splenium, the inner side edge of the first sealing member
Portion is held between the first splenium of the second press box and seesaw flange, and the second sealing member is held in the first press box and the second pressure
Between second splenium of frame.
Rocker switch the most according to claim 3, it is characterised in that:
This first press box is provided with the first groove, and the second splenium of the second press box is provided with the second groove, and the second sealing member is provided with
One the first protuberance and being absorbed in the first groove is absorbed in the second protuberance of the second groove.
Rocker switch the most according to claim 4, it is characterised in that:
The one side being close to the first press box of this second sealing member is pasted together by double faced adhesive tape and the first press box, the second sealing member
The one side of the second splenium being close to the second press box be pasted together by the second splenium of double faced adhesive tape and the second press box.
Rocker switch the most according to claim 3, it is characterised in that:
First sealing member and the second sealing member are elastic sealing element；
Seesaw is in the open position of open state and a switch module is between the closed position of off status at a switch module
Switching；
When seesaw is in the open position, the first sealing member and the second sealing member all make seesaw have and switch to pass from open position
The trend of closed position；
When seesaw is in the closed position, it is switched on that the first sealing member and the second sealing member all make seesaw have from closed position
Open the trend of position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610606091.2A CN106206139B (en) | 2016-07-27 | 2016-07-27 | Rocker switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610606091.2A CN106206139B (en) | 2016-07-27 | 2016-07-27 | Rocker switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106206139A true CN106206139A (en) | 2016-12-07 |
| CN106206139B CN106206139B (en) | 2018-02-09 |
Family
ID=57496351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610606091.2A Active CN106206139B (en) | 2016-07-27 | 2016-07-27 | Rocker switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106206139B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265244A (en) * | 2019-06-26 | 2019-09-20 | 齐鹏 | A kind of electric power safety switch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000113774A (en) * | 1998-10-08 | 2000-04-21 | Fuji Heavy Ind Ltd | Interior switch structure for automobile |
| CN101325316A (en) * | 2007-06-13 | 2008-12-17 | 施耐德电器工业公司 | Operation panel with sealing structure |
| KR101045311B1 (en) * | 2010-09-07 | 2011-06-29 | 진흥전기 주식회사 | Accessories assembly structure for switch plate |
| CN203882823U (en) * | 2014-06-07 | 2014-10-15 | 温州佳居电气有限公司 | Novel waterproof switch |
| CN105304378A (en) * | 2015-12-02 | 2016-02-03 | 张坤业 | Waterproof and anti-electric shock safety switch |
-
2016
- 2016-07-27 CN CN201610606091.2A patent/CN106206139B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000113774A (en) * | 1998-10-08 | 2000-04-21 | Fuji Heavy Ind Ltd | Interior switch structure for automobile |
| CN101325316A (en) * | 2007-06-13 | 2008-12-17 | 施耐德电器工业公司 | Operation panel with sealing structure |
| KR101045311B1 (en) * | 2010-09-07 | 2011-06-29 | 진흥전기 주식회사 | Accessories assembly structure for switch plate |
| CN203882823U (en) * | 2014-06-07 | 2014-10-15 | 温州佳居电气有限公司 | Novel waterproof switch |
| CN105304378A (en) * | 2015-12-02 | 2016-02-03 | 张坤业 | Waterproof and anti-electric shock safety switch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265244A (en) * | 2019-06-26 | 2019-09-20 | 齐鹏 | A kind of electric power safety switch |
| CN110265244B (en) * | 2019-06-26 | 2021-12-14 | 宁波向往智能科技有限公司 | Electric power safety switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106206139B (en) | 2018-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2005010410A3 (en) | Composite seal and window assembly | |
| CN106206139A (en) | Rocker switch | |
| JP6568164B2 (en) | Electronic equipment attached to industrial equipment | |
| CN102856103A (en) | Button device | |
| CN207149453U (en) | Press-button structure and mining wearable device | |
| CN106128838A (en) | The seal protection structure of switch | |
| CN106057530B (en) | Double moving seesaw-type switch on wall | |
| CN106229200A (en) | Single moving seesaw-type switch on wall | |
| CN204587004U (en) | Deflector dust boot | |
| WO2023193575A1 (en) | Water-proof auto-darkening filter and welding helmet equipped with the same | |
| CN209928417U (en) | Calculator | |
| CN106206138B (en) | Three moving seesaw-type switch on wall | |
| CN209591888U (en) | A kind of waterproof switch on wall | |
| CN208581430U (en) | Nine folded section cabinets are multidirectional and cabinet and its front and back and cabinet part | |
| CN205588959U (en) | Automobile | |
| CN212136298U (en) | Dustproof switch | |
| CN112332228A (en) | Waterproof switch board cabinet door | |
| CN206711805U (en) | Keyboard case for industrial control equipment | |
| CN202603103U (en) | An automobile controller housing | |
| KR200347425Y1 (en) | Top sealing bridge for sliding doors | |
| CN201700384U (en) | Enclosure strip of bottom part of tobacco equipment | |
| CN205588957U (en) | Take vehicle door sealing's car | |
| CN208978605U (en) | Engineering vehicle cab double sealing structure | |
| CN210839540U (en) | Wireless receiver | |
| CN217009012U (en) | Waterproof wireless remote control doorbell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 59, Nenjiang Road, Gulou District, Nanjing City, Jiangsu Province Patentee after: Zhang Yulian Address before: 528400 Guangdong province Zhongshan City Shiqi District, North Hubin Road No. 68 building 4 Room 502 Lakeview Garden Patentee before: Zhang Yulian |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200812 Address after: 215500 Qiuzhen building, Southeast campus, Changshu Institute of technology, No. 99, Hushan Road, Changshu Southeast Economic Development Zone, Suzhou City, Jiangsu Province Patentee after: Changshu southeast high tech Venture Service Co., Ltd Address before: No. 59, Nenjiang Road, Gulou District, Nanjing City, Jiangsu Province Patentee before: Zhang Yulian |