CN201433339Y - Installation device of electric heating snow-melting element for railway switching turnout - Google Patents
Installation device of electric heating snow-melting element for railway switching turnout Download PDFInfo
- Publication number
- CN201433339Y CN201433339Y CN2009201616301U CN200920161630U CN201433339Y CN 201433339 Y CN201433339 Y CN 201433339Y CN 2009201616301 U CN2009201616301 U CN 2009201616301U CN 200920161630 U CN200920161630 U CN 200920161630U CN 201433339 Y CN201433339 Y CN 201433339Y
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- Prior art keywords
- rail
- flange
- web
- plate
- handle
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- 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.)
- Expired - Lifetime
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- 238000009434 installation Methods 0.000 title claims abstract description 25
- 238000002844 melting Methods 0.000 title abstract description 4
- 238000005485 electric heating Methods 0.000 title abstract 2
- 238000010438 heat treatment Methods 0.000 claims abstract description 65
- 239000005413 snowmelt Substances 0.000 claims description 18
- 238000005452 bending Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract 4
- 239000010959 steel Substances 0.000 abstract 4
- 239000011120 plywood Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 11
- 230000005489 elastic deformation Effects 0.000 description 4
- 241001669679 Eleotris Species 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Railway Tracks (AREA)
Abstract
The utility model relates to an installation device of an electric heating snow-melting element for a railway switching turnout, consisting of a connecting piece, a steel rail (8), a heating bar handle (9) and a heating bar body (14). The installation device is characterized by also comprising a top plate (1), a rail base pressing plate (2) and a rail web handle plywood (3) which clamps the heating bar handle (9) and is contacted with the steel rail (8) by the connecting piece. The steel rail structure is not damaged, the switch of point rails is not influenced, the installation device can bedirectly clamped on the steel rail by the own structure and safely fix the heating element.
Description
Technical field
The utility model belongs to the corollary apparatus of railway switch electrical heating device for melting snow, relates to a kind of electrical heating elements being fixed on the rail, and guarantees not destroy the rail structure, does not influence the electrical heating elements erecting device of tongue conversion.
Background technology
Electrical heating snow melt mode is a kind of more advanced, reliable snow melt mode, and the electrical heating snow melt has dual mode, and a kind of is directly to heat to slide plate, and this mode needs special slide plate; Another kind is that heating element is installed on rail, by to rail heating, conducts heat to slide plate, thereby realizes snow melt, and this mode need not change the existing equipment of track switch, and construction is simple, and applicability is more intense.The utility model is mainly used in and solves in the second way heating element in the fixation problem of rail.
Heating element is the important component part of electrical heating device for melting snow, fire-bar is made up of the bar body of knop and tabular, different according to handle with the changeover portion of bar body, heating element has the branch of straight grip and U handle, the changeover portion of straight grip heating element handle and bar body is a broken line, the direction of handle and bar body is consistent, and the changeover portion of U handle heating element handle and bar body is a U-shaped.Track switch is made up of stock rail and tongue, and tongue can be movable, thereby realizes line turnaround.Heating element is between stock rail and the tongue in the installation region on the stock rail, when tongue and stock rail are closely connected, this regional free space is very limited, and equipment can not surmount this space, if surpass and not only can influence switch point housing, might cause serious driving accident and influence switch point housing, also may cause the damage of heating element in addition.Consider the installing space problem, for not influencing the tongue conversion, the straight grip heating element is installed in the web of the rail, and it is proper that U handle heating element is installed in flange of rail inclined-plane.How electrical heating elements being fixed on the rail, is the key that electrical heating snow melt mode realizes.By retrieval, Chinese patent ZL200520092446.8 discloses the mounting means of a kind of electrical heating elements on rail, and the connecting bolt that this mode utilizes fixing sleeper to use fixedly fastens heating element on rail.This mode has significant limitation, and this mode only is applicable on the stock rail web of the rail heating element is installed on the one hand, if do not have bolt on the rail on the other hand, this scheme then can't be implemented.
Summary of the invention
The utility model technical issues that need to address are: a kind of railway switch snow melt electrical heating elements erecting device is provided, it does not destroy the rail structure, do not influence tongue conversion, can directly be stuck on the rail and finish the fixedly erecting device of heating element function simultaneously by self structure.
Technical solution of the present utility model is: a kind of railway switch snow melt electrical heating elements erecting device, form by connector, rail, fire-bar handle and heating rule body, it is characterized in that: further comprising top board, flange of rail pressing plate, web of the rail handle clamping plate, described web of the rail handle grip integrated circuit board is lived the fire-bar handle, and contacts with rail by connector.
The utility model compared with prior art has following advantage: the utility model has taken into full account the installation situation of sleeper, do not rely on the installation form of sleeper, can directly be stuck on the rail and finish the fixedly erecting device of heating element function simultaneously by self structure.Bar body jig has better elastic, takes place under external force can be hooked in rail foot after the elastic deformation, pushes down fire-bar by extension, can rely on elastic force and hook formation to guarantee reliability of fixation.Applicability of the present utility model is strong, not influencing switch point housing or not being subjected under the situation of tongue destruction, applicable to all track switches, and implements simply, and is easy to operate, the efficiency of construction height.
Description of drawings
Fig. 1 is the scheme of installation of web of the rail embodiment fire-bar handle;
Fig. 2 is a flange of rail pressing plate schematic diagram;
Fig. 3 is the top board schematic diagram;
Fig. 4 is a web of the rail double handle clamping plate schematic diagrames;
Fig. 5 is a web of the rail lower bar body card schematic diagram;
Fig. 6 is a web of the rail upper strips body card schematic diagram;
Fig. 7 is a flange of rail bar body card schematic diagram;
Fig. 8 is a web of the rail bottom anti-jump body card schematic diagram;
Fig. 9 is a web of the rail top anti-jump body card schematic diagram;
Figure 10 is the scheme of installation of web of the rail embodiment heating rule body in web of the rail bottom;
Figure 11 is the scheme of installation of web of the rail embodiment heating rule body on web of the rail top;
Figure 12 is a flange of rail embodiment fire-bar handle scheme of installation;
Figure 13 is the cushion block schematic diagram;
Figure 14 is the scheme of installation of flange of rail embodiment heating rule body;
Figure 15 is for being fit to the fire-bar schematic diagram that the web of the rail is installed;
Figure 16 is for being fit to the fire-bar schematic diagram that the flange of rail is installed.
1 is top board among the figure, 2 is flange of rail pressing plate, 3 is web of the rail handle clamping plate, 4 is the stay bolt connector, 5 is the lag bolt connector, 6 is cushion block, 7 is flange of rail handle clamping plate, 8 is rail, 9 fire-bar handles, 10 is flange of rail pressing plate side plate, 11 is the U-shaped plate, 12 is the top board side plate, 13 web of the rail lower bar body cards, 14 are heating rule body, 15 is bar body card extension, 16 is web of the rail upper strips body card, 17 is groove, 18 is U-lag, 19 flange of rail bar body cards, the anti-jump body card in 20 web of the rail bottoms, the anti-jump body card in 21 web of the rail tops, 22 web of the rail handle cards, 23 flange of rail handle cards.
Specific embodiments
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Heating element is made up of handle and heating rule body, and therefore, the heating element erecting device is made up of handle card and bar body card, handle fastens the fire-bar handle, the bar body fastens heating rule body, according to the difference of installation site, two kinds of embodiments of the web of the rail and the flange of rail is arranged respectively.
Web of the rail embodiment is that fire-bar is fixed on the rail web of the rail, handle and bar body fasten with web of the rail handle card and web of the rail bar body respectively, web of the rail bar body card has the branch of web of the rail lower bar body card and web of the rail upper strips body card, the fire-bar that is fit to web of the rail installation is seen Figure 15, rule body section is heated as shown in figure 10 as shown in Figure 1 in fire-bar handle cross section.
Web of the rail handle card 22 (see figure 1)s are made up of flange of rail pressing plate 2, top board 1, web of the rail handle clamping plate 3, stay bolt connector 4, lag bolt connector 5.Flange of rail pressing plate 2 is formed (see figure 2) by flange of rail pressing plate side plate 10 and U-shaped plate 11, U-shaped plate 11 is in the bottom of flange of rail pressing plate side plate 10, opening upwards, the top of flange of rail pressing plate side plate 10 is two parallel faces with the bottom, the junction is the inclined-plane, obtuse angle, the angle of slope on inclined-plane is slightly larger than the angle of slope on flange of rail inclined-plane, the inclined-plane, obtuse angle forms the groove that can cooperate with rail 8 flanges of rail with the opening surface of U-shaped plate 11, flange of rail pressing plate side plate 10 tops are higher than rail 8 webs of the rail, in the position concordant with rail 8 webs of the rail bolt hole is arranged, bolt hole is also left in flange of rail pressing plate side plate 10 bottoms.Top board 1 is formed (see figure 3) by top board side plate 12 and U-shaped plate 11, top board side plate 12 tops are the obtuse angle bent plate, bending angle is slightly larger than the angle of slope on flange of rail inclined-plane, top board side plate 12 bottoms have and the corresponding bolt hole in flange of rail pressing plate side plate 10 bottoms, U-shaped plate 11 is in top board side plate 12 bottoms, opening makes progress, and opening surface forms the groove that matches with rail 8 flanges of rail with the obtuse angle bent plate; Web of the rail handle clamping plate 3 bottoms are circular arc, are used to place fire-bar handle 9, and top is 90 degree bent plates, also can be circular arc, and there is bolt hole the centre, and this hole is corresponding with the bolt hole on flange of rail pressing plate side plate 10 tops; Flange of rail pressing plate 2 is connected by stay bolt connector 4 with top board 1, and web of the rail handle clamping plate 3 are connected by lag bolt connector 5 with the top of flange of rail pressing plate side plate 10.Web of the rail handle clamping plate 3 and top board 1 are at the homonymy of flange of rail pressing plate 2.
The installation of the fire-bar handle of web of the rail embodiment as shown in Figure 1, the groove of top board 1 and flange of rail pressing plate 2 is clamped rail 8 flange of rail the right and lefts, flange of rail pressing plate 2 by fastening stay bolt connector 4, makes top board 1 and flange of rail pressing plate 2 clamp the flange of rail of rail 8 at the heating element installation side of rail 8.Fire-bar handle 9 is placed in the bottom circular arc of web of the rail handle clamping plate 3, the another side of fire-bar handle 9 contacts with rail 8, by fastening lag bolt connector 5, available web of the rail handle clamping plate 3 are pressed in fire-bar handle 9 on the rail 8, realize the fixing of fire-bar handle 9.3 fens single-grip clamping plate of web of the rail handle clamping plate and double handle clamping plate, web of the rail handle clamping plate 3 are the single-grip clamping plate among Fig. 1, the double handle clamping plate are seen Fig. 4.
Bar body card is processed by spring steel plate, one end is hook-shaped, the other end extends upward along the rail inner surface from the flange of rail, middle connecting portion in obtuse angle, head at bar body card extension 15 is made groove 17, and the length of bar body card extension 15 depends on the installation site of fire-bar, according to the length of bar body card extension bar body card is divided into web of the rail lower bar body card 13 (see figure 5)s, web of the rail upper strips body card 16 (see figure 6)s, flange of rail bar body card 19 (see figure 7)s.
The effect of anti-jump body card is to guarantee that fire-bar remains on the position of being fixed, be installed in heating rule body afterbody, its shape is to form U-lag 18 on the top of bar body card extension 15, it and web of the rail handle clamping plate 3 limit the position of heating rule body 14 together, the length of bar body card extension 15 depends on the installation site of fire-bar, according to the length of bar body card extension 15 anti-jump card is divided into anti-jump body card 20 in web of the rail bottom (Fig. 8) and the anti-jump body card 21 in web of the rail top (Fig. 9).
Web of the rail embodiment heating rule body in the installation of web of the rail bottom as shown in figure 10.Elastic deformation takes place in web of the rail lower bar body card 13 under external force, and is hooked in rail 8 flanges of rail, utilizes the bar body card extension 15 of web of the rail lower bar body card 13 to push down heating rule body 14.The anti-jump body card 20 in web of the rail bottom is identical with the embodiment of web of the rail lower bar body card 13.
Web of the rail embodiment heating rule body in the installation on web of the rail top as shown in figure 11.Elastic deformation takes place in web of the rail upper strips body card 16 under external force, and is hooked in rail 8 flanges of rail, utilizes the bar body card extension 15 of web of the rail upper strips body card 16 to push down heating rule body 14.The anti-jump body card 21 in web of the rail top is identical with the embodiment of web of the rail upper strips body card 16.
Flange of rail embodiment is that fire-bar is installed on the rail flange of rail inclined-plane, with the fixing fire-bar handle of flange of rail handle card 23, with flange of rail bar body card 19 fixing heating rule bodies, the fire-bar that is fit to flange of rail installation is seen Figure 16, fire-bar handle cross section fire-bar handle as shown in figure 12, heating rule body section heating rule body as shown in Figure 14.
Flange of rail handle card 23 (seeing Figure 12) is made up of top board 1, flange of rail handle clamping plate 7, cushion block 6 and stay bolt connector 4, and top board 1 has two.Flange of rail handle clamping plate 7 tops are circular arc, are used to place fire-bar handle 9, and bolt hole is arranged at the bottom, and this bolt hole is corresponding with the bolt hole of top board side plate 12; Cushion block 6 is stepped, and top is used for contacting with fire-bar handle 9, and side, its underpart has and top board side plate 12 corresponding bolts hole.Two top boards 1, cushion block 6 and flange of rail handle clamping plate 7 are connected by stay bolt connector 4, and cushion block 6 is between the top board 1 and flange of rail handle clamping plate 7 of fire-bar handle 9 installation sides.
The installation of flange of rail embodiment fire-bar handle as shown in figure 12.Stay bolt connector 4 is connected in series two top boards 1, cushion block 6, flange of rail handle clamping plate 7, fire-bar handle 9 is placed in the circular arc on flange of rail handle clamping plate 7 tops, the another side of fire-bar handle 9 contacts with cushion block 6 tops, make two top boards 1 clamp the flange of rail both sides of rail 8 by fastening stay bolt connector 4, fire-bar handle 9 can be clipped between flange of rail handle clamping plate 7 and the cushion block 6 simultaneously, realize the fixing of fire-bar handle 9.
Installing and fixing as shown in figure 14 of flange of rail embodiment heating rule body.Elastic deformation takes place in flange of rail bar body card 19 under external force, and is hooked in rail 8 flanges of rail, utilizes the bar body card extension 15 of flange of rail bar body card 19 to push down heating rule body 14.
Claims (10)
1. railway switch snow melt electrical heating elements erecting device, form by connector, rail (8), fire-bar handle (9) and heating rule body (14), it is characterized in that: further comprising top board (1), flange of rail pressing plate (2), web of the rail handle clamping plate (3), described web of the rail handle clamping plate (3) block fire-bar handle (9), and contact with rail (8) by connector.
2. a kind of railway switch snow melt electrical heating elements erecting device according to claim 1, it is characterized in that: further comprising bar body card, described body card can be web of the rail lower bar body card (13), web of the rail upper strips body card (16), it also can be flange of rail bar body card (19), this body card one end is similar to flange of rail shape, and hook the flange of rail, the other end has bar body card extension (15) along the profile of the flange of rail, the length of described body card extension (15) depends on the installation site of fire-bar, described body card extension (15) leaves groove (17) or U-lag (18) with heating rule body (14) contact site, and described groove (17) and U-lag (18) are used to block heating rule body (14).
3. a kind of railway switch snow melt electrical heating elements erecting device according to claim 1 and 2, it is characterized in that: described flange of rail pressing plate (2) is made up of flange of rail pressing plate side plate (10) and U-shaped plate (11), described U-shaped plate (11) is in the bottom of flange of rail pressing plate side plate (10), opening upwards, the top of described flange of rail pressing plate side plate (10) is two parallel faces with the bottom, the junction is the inclined-plane, obtuse angle, the angle of slope on inclined-plane is slightly larger than the angle of slope on flange of rail inclined-plane, the inclined-plane, obtuse angle forms the groove that can cooperate with rail (8) flange of rail with the opening surface of U-shaped plate (11), this flange of rail pressing plate side plate (10) top is higher than rail (8) web of the rail, in the position concordant with rail (8) web of the rail bolt hole is arranged, bolt hole is also left in flange of rail pressing plate side plate (10) bottom.
4. a kind of railway switch snow melt electrical heating elements erecting device according to claim 1 and 2, it is characterized in that: described top board (1) is made up of top board side plate (12) and U-shaped plate (11), described top board side plate (12) top is the obtuse angle bent plate, bending angle is slightly larger than the angle of slope on flange of rail inclined-plane, top board side plate (12) bottom has and the corresponding bolt hole in flange of rail pressing plate side plate (10) bottom, U-shaped plate (11) is welded in top board side plate (12) bottom, opening makes progress, and opening surface forms the groove that matches with rail (8) flange of rail with the obtuse angle bent plate.
5. a kind of railway switch snow melt electrical heating elements erecting device according to claim 1, it is characterized in that: described connector is that stay bolt connector (4), lag bolt connector (5) are formed, described flange of rail pressing plate (2) is connected by stay bolt connector (4) with top board (1), and web of the rail handle clamping plate (3) are connected by lag bolt connector (5) with flange of rail pressing plate side plate top.
6. a kind of railway switch snow melt electrical heating elements erecting device according to claim 1, it is characterized in that: further comprising cushion block (6), described cushion block (6) is stepped, be positioned between the top board (1) and flange of rail handle clamping plate (7) of fire-bar handle (9) installation side, described cushion block (6) its underpart has and the corresponding bolt hole of top board side plate (12).
7. a kind of railway switch snow melt electrical heating elements erecting device according to claim 1, it is characterized in that: described flange of rail handle clamping plate (7) top is circular arc, and bolt hole is arranged at the bottom, and this hole is corresponding with the bolt hole of top board side plate (12) bottom.
8. according to claim 6 or 7 described a kind of railway switch snow melt electrical heating elements erecting devices, it is characterized in that: described top board (1), cushion block (6) and flange of rail handle clamping plate (7) are connected in series by stay bolt connector (4), and the quantity of top board (1) is 2.
9. a kind of railway switch snow melt electrical heating elements erecting device according to claim 1 is characterized in that: described web of the rail handle clamping plate (3) can be the single-grip folders, also can be the double handle folders.
10. a kind of railway switch snow melt electrical heating elements erecting device according to claim 9 is characterized in that: the end that described single-grip folder bottom contacts with fire-bar handle (9) is an arc, and top is 90 degree bent plates, and there is bolt hole at the middle part; Described double handle clamping plate two ends up and down are arc all, and there is bolt hole at the middle part, and described bolt hole is corresponding with the bolt hole on flange of rail pressing plate side plate (10) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201616301U CN201433339Y (en) | 2009-07-17 | 2009-07-17 | Installation device of electric heating snow-melting element for railway switching turnout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201616301U CN201433339Y (en) | 2009-07-17 | 2009-07-17 | Installation device of electric heating snow-melting element for railway switching turnout |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201433339Y true CN201433339Y (en) | 2010-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201616301U Expired - Lifetime CN201433339Y (en) | 2009-07-17 | 2009-07-17 | Installation device of electric heating snow-melting element for railway switching turnout |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201433339Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102465478A (en) * | 2010-11-18 | 2012-05-23 | 青岛四机易捷铁路装备有限公司 | Electromagnetic-heating snow-melting device of railway switch and manufacturing method thereof |
| CN103946454A (en) * | 2011-09-16 | 2014-07-23 | 东日本旅客铁道株式会社 | Foreign matter removal device for track branching section |
| CN105256673A (en) * | 2015-09-23 | 2016-01-20 | 北京东奥工贸有限公司 | Rail heating and thermal insulating device |
| CN108774927A (en) * | 2018-07-30 | 2018-11-09 | 河北宝力工程装备股份有限公司 | The construction method of railway roadbed dust guard |
-
2009
- 2009-07-17 CN CN2009201616301U patent/CN201433339Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102465478A (en) * | 2010-11-18 | 2012-05-23 | 青岛四机易捷铁路装备有限公司 | Electromagnetic-heating snow-melting device of railway switch and manufacturing method thereof |
| CN103946454A (en) * | 2011-09-16 | 2014-07-23 | 东日本旅客铁道株式会社 | Foreign matter removal device for track branching section |
| CN105256673A (en) * | 2015-09-23 | 2016-01-20 | 北京东奥工贸有限公司 | Rail heating and thermal insulating device |
| CN108774927A (en) * | 2018-07-30 | 2018-11-09 | 河北宝力工程装备股份有限公司 | The construction method of railway roadbed dust guard |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING CRSC SIGNAL AND COMMUNICATION TECHNOLOGY D Free format text: FORMER NAME: BEIJING ZHONGTIETONG ELECTRIC TECHNICAL DEVELOPMENT CENTER |
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| CP01 | Change in the name or title of a patent holder |
Address after: 100071 Beijing West Fourth Ring Road, Fengtai District, No. 49 Patentee after: BEIJING ZHONGTIETONG TECHNOLOGY DEVELOPMENT CENTER OF SIGNAL & COMMUNICATION CO.,LTD. Address before: 100071 Beijing West Fourth Ring Road, Fengtai District, No. 49 Patentee before: Beijing China Railway Communication Technology Development Center |
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| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 100071 Beijing West Fourth Ring Road, Fengtai District, No. 49 Patentee after: BEIJING ZHONGTIETONG TECHNOLOGY DEVELOPMENT CENTER OF SIGNAL & COMMUNICATION CO.,LTD. Address before: 100071 Beijing West Fourth Ring Road, Fengtai District, No. 49 Patentee before: BEIJING ZHONGTIETONG TECHNOLOGY DEVELOPMENT CENTER OF SIGNAL & COMMUNICATION CO.,LTD. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20170327 Address after: 100073 Beijing, Fengtai District, South Fourth Ring Road West, No. 1, building 12, (Park) Patentee after: CRSC RESEARCH & DESIGN INSTITUTE GROUP Co.,Ltd. Address before: 100071 Beijing West Fourth Ring Road, Fengtai District, No. 49 Patentee before: BEIJING ZHONGTIETONG TECHNOLOGY DEVELOPMENT CENTER OF SIGNAL & COMMUNICATION CO.,LTD. |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100331 |
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| CX01 | Expiry of patent term |