CN204577202U - A kind of rail transit platform screen door integral insulation bearing - Google Patents
A kind of rail transit platform screen door integral insulation bearing Download PDFInfo
- Publication number
- CN204577202U CN204577202U CN201520225162.5U CN201520225162U CN204577202U CN 204577202 U CN204577202 U CN 204577202U CN 201520225162 U CN201520225162 U CN 201520225162U CN 204577202 U CN204577202 U CN 204577202U
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- CN
- China
- Prior art keywords
- insulator
- porcelain
- lower shoe
- upper plate
- rail transit
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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 - Fee Related
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Abstract
The utility model discloses a kind of rail transit platform screen door integral insulation bearing, comprise upper plate, insulator and lower shoe; Described upper plate is connected by insulator with lower shoe.Upper plate is inserted in porcelain insulator has adopted interior mucilage binding mode, and lower shoe and porcelain insulator adopt outer mucilage binding mode.This rail transit platform screen door integral insulation bearing, globality is strong, antipollution, humidity, good insulation preformance, the life-span is long and have sufficient mechanical strength, maintenance easy to clean, easy for installation, removable beneficial effect.
Description
Technical field
The utility model relates to insulated leg applied technical field, is specially a kind of rail transit platform screen door integral insulation bearing.
Background technology
Current subway train generally adopts DC traction power-supply system, and using rail as backflow row, is directly connected to traction substation.In order to avoid stray electrical current causes galvano-cautery to underground metal pipeline and concrete structure reinforcing bars etc., rail is insulate with the earth, therefore, may produce larger potential difference, make the carbody shell of subway train there is above earth potential between rail and the earth.Very likely touch train body shell during passenger getting on/off simultaneously and be installed on platform (shielding) the door framework on platform, and produce potential difference at human body, work the mischief to the passenger got on or off the bus or bring discomfort.For this reason, theoretically, subway platform (shielding) door system needs to adopt the insulating mounting meeting insulation against ground resistance requirement.
In order to ensure passenger safety, relevant regulations has all been done in the standards such as " metro design code " (GB50157-2013), " urban railway system platform shielding door System Technical Specification " (CJJ 183-2012): " when adopting rail to make return current rail; platform (shielding) Men Yingyu rail carries out equipotential link, and equipotential connection scoops out and meets the following requirements:
Platform (shielding) door hardware should insulate with civil engineering structure ... insulation resistance should be not less than 0.5M Ω under 500VDC ".
Equipotential link is to not produce potential difference on human body when ensureing that passenger touches car body and platform (shielding) door framework simultaneously.The object that platform (shielding) door hardware and civil engineering structure insulate is, prevents direct current in rail from flowing into xoncrete structure through platform (shielding) door steel construction and causes galvano-cautery to structure reinforcing bars.
All adopt combined insulation erection support (upper and lower bearing) as shown in Figure 1 at present, utilize insulation spacer and insulating case to reach the object of steel construction insulation against ground, insulating material adopts engineering plastics or rubber etc. mostly.Overwhelming majority platform (shielding) door insulation system, when final acceptance of construction, does not reach the requirement [1] that insulation against ground intensity is not less than 0.5 M Ω.Even if platform (shielding) door dielectric strength is up to standard during final acceptance of construction, after running a period of time, dielectric strength is also difficult to reach initial design objective, and this is mainly subject to the erosion of the foreign matter such as humidity, dust with insulating material and makes decreasing insulating relevant [1].According to the operating line in current domestic each city, run platform (shielding) the door insulation against ground after a year and all do not reach national regulation requirement, many insulation against ground resistance is directly 0 Europe.Beijing Metro new line platform (shielding) door system in construction, in running, ubiquity megger test is not up to standard yet situation [1] [2].
Due to the insulation against ground of platform (shielding) door decline, amount direct current will through platform (shielding) door steel construction inflow xoncrete structure in, cause galvano-cautery to concrete structure reinforcing bars, then by xoncrete structure safety and the life-span constitute a serious threat.There is " sparking " phenomenon when flowing through platform (shielding) door steel construction in interstructural loose contact place in big current simultaneously; " sparking " phenomenon of platform (shielding) door, makes station platform there is serious disaster hidden-trouble.
Not only insulation property are bad for the Combined insulating bearing extensively adopted in current industry, and once not easy to clean after stained, almost do not have maintainability, can not change.Combined support, part is many, machining and field combinations operation many.
Utility model content
The purpose of this utility model is to provide a kind of rail transit platform screen door integral insulation bearing, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme: the overall porcelain insulating bearing of a kind of rail transit platform screen door, comprises upper plate, porcelain insulator lower shoe; Described upper plate is connected by insulator with lower shoe; Described upper plate is inserted in porcelain insulator, and mucilage binding in adopting, lower shoe and insulator adopt outer mucilage binding mode.
As optimal technical scheme of the present utility model:
Edge body adopts high-strength electrical porcelain (or fiberglass, epoxy resin, poly-fluorine ethylene etc.) to make, and in order to increase creepage distance, insulator outward flange arranges one or more seamed edge or full skirt.Porcelain piece external surface glazing, improves mechanical strength, makes porcelain smooth surface attractive in appearance, improve it and protect pollution capacity.Porcelain insulating bearing is applied to high humidity, high dust atmosphere.
Special version, the upper and lower base plate of integral insulation bearing is all provided with the annulus cover with certain altitude, and constitute the version of the porcelain-metal-porcelain-metal-porcelain between upper and lower base plate and porcelain insulator after insulating porcelain piece mucilage binding, in addition the toric dimensional fits of upper and lower base plate, define upper and lower base plate analyse with insulation porcelain between mutually nested clad vessel formula structure.This mode not only greatly strengthen the bending resistance of integral insulation bearing, even and if ensure that insulator fragmentation time, upper junction plate also there will not be situation about collapsing, and guarantees that platform (shielding) door installs firm and safety.
Lower shoe adopts the object of " U " nibs, is conveniently replacing time.When integral insulation bearing needs to change, only the joint bolt of upper plate and upper component need be taken out from bottom, then unclamp the anchor bolt of fixing lower shoe, temporarily hold up respective members with other object, just can easily bearing is extracted out, thus change new bearing.
Compared with prior art, the beneficial effects of the utility model are: this rail transit platform screen door integral insulation bearing, antipollution, humidity, good insulation preformance and have sufficient mechanical strength, maintenance easy to clean, easy for installation, removable beneficial effect.
Accompanying drawing explanation
Fig. 1 is current condition figure,
Fig. 2 is overall cutaway view of the present utility model;
Fig. 3 is upper plate structural representation of the present utility model;
Fig. 4 is lower shoe structural representation of the present utility model;
Fig. 5 is insulator cutaway view of the present utility model;
Fig. 6 is insulator vertical view of the present utility model;
Wherein: 1-upper plate; 3-insulator, 31-insulating case; 4-adhesive; 5-lower shoe; 21-first cushion pad; 22-second cushion pad; 6-attachment bolt.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 2-6, the utility model provides a kind of technical scheme: a kind of rail transit platform screen door integral insulation bearing, comprises upper plate 1, insulator 3, adhesive 4 and lower shoe 5; Described upper plate 1 is connected by insulator 3 with lower shoe 5; Described upper plate 1 is inserted in insulator 3, mucilage binding in adopting, and lower shoe 5 and porcelain insulator 3 adopt outer mucilage binding.After mucilage binding, the annulus of upper and lower base plate in height has a superposition section, to form the container type structure mutually embedded.
As optimal technical scheme of the present utility model: insulator adopts high-strength electrical porcelain (or fiberglass, epoxy resin, poly-fluorine ethylene etc.) to make, and in order to increase creepage distance, insulator outward flange arranges one or more seamed edge or full skirt.Porcelain piece external surface glazing, improves mechanical strength, makes porcelain smooth surface attractive in appearance, improve it and protect pollution capacity.Porcelain insulating bearing is applied to high humidity, high dust atmosphere.
Special version, the upper and lower base plate of integral insulation bearing is all provided with the annulus cover with certain altitude, and constitute the version of the porcelain-metal-porcelain-metal-porcelain between upper and lower base plate and porcelain insulator after insulating porcelain piece mucilage binding, in addition corresponding dimensional fits, define upper and lower base plate analyse with insulation porcelain between mutually nested clad vessel formula structure.This mode not only greatly strengthen the bending resistance of integral insulation bearing, even and if ensure that insulator fragmentation time, upper junction plate also there will not be situation about collapsing, and guarantees that platform (shielding) door installs firm and safety.
Lower shoe adopts the object of " U " nibs, is conveniently replacing time.When integral insulation bearing needs to change, only the joint bolt of upper plate and upper component need be taken out from bottom, then unclamp the anchor bolt of fixing lower shoe, temporarily hold up respective members with other object, just can easily bearing is extracted out, thus change new bearing.
Rail transit platform screen door integral insulation bearing of the present utility model, antipollution, humidity, not aging, good insulation preformance and have sufficient mechanical strength, maintenance easy to clean, easy for installation, replaceable.
Although illustrate and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and spirit, scope of the present utility model is by claims and equivalents thereof.
Claims (2)
1. a rail transit platform screen door integral insulation bearing, comprises upper plate (1), porcelain insulator (3) and lower shoe (5); It is characterized in that: described upper plate (1) is connected by insulator (3) with lower shoe (5); Described upper plate (1) is inserted in insulator (3), mucilage binding mode in adopting, and lower shoe (5) and insulator (3) adopt outer mucilage binding mode.
2. a kind of rail transit platform screen door integral insulation bearing according to claim 1, it is characterized in that: described insulator (3) and upper plate (1), lower shoe (5) form complete, an independently product after mucilage binding, porcelain-metal-porcelain-metal-porcelain version between upper and lower base plate and porcelain insulator, dimensional fits under adding, between lower shoe, defines the clad vessel formula structure that upper and lower base plate is mutually nested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520225162.5U CN204577202U (en) | 2015-04-15 | 2015-04-15 | A kind of rail transit platform screen door integral insulation bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520225162.5U CN204577202U (en) | 2015-04-15 | 2015-04-15 | A kind of rail transit platform screen door integral insulation bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204577202U true CN204577202U (en) | 2015-08-19 |
Family
ID=53869803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520225162.5U Expired - Fee Related CN204577202U (en) | 2015-04-15 | 2015-04-15 | A kind of rail transit platform screen door integral insulation bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204577202U (en) |
-
2015
- 2015-04-15 CN CN201520225162.5U patent/CN204577202U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20170415 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |