CN2670420Y - Threaded dog nail of preembedded plastic casing pipe concrete sleeper - Google Patents
Threaded dog nail of preembedded plastic casing pipe concrete sleeper Download PDFInfo
- Publication number
- CN2670420Y CN2670420Y CNU032273401U CN03227340U CN2670420Y CN 2670420 Y CN2670420 Y CN 2670420Y CN U032273401 U CNU032273401 U CN U032273401U CN 03227340 U CN03227340 U CN 03227340U CN 2670420 Y CN2670420 Y CN 2670420Y
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- CN
- China
- Prior art keywords
- dog nail
- thread
- concrete sleeper
- nail
- threaded
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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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- Machines For Laying And Maintaining Railways (AREA)
Abstract
The utility model discloses a threaded dog nail of pre-embedded plastic casing pipe concrete sleeper, which is matched with a pre-embedded plastic casing pipe concrete sleeper. The threaded dog nail is adopted, the excircle of the dog nail is changed to the outside thread structure, and the threaded dog nail is integrated with a screw nut; the thread structure of the threaded dog nail is a jagged inverse-back single-oblique-line thread, the sloped edge of the thread is large oblique angle, and the included angle of the sloped edge and the thread cross section is 20 degrees-60 degrees; the fit between the threaded dog nail and the plastic casing pipe is a loose fit, and the range of the screw pitch of the threaded dog nail and the plastic casing pipe is 7. 5-12. 5 millimeters. Besides, the surface of the threaded dog nail has an anticorrosive coating to guarantee that the threaded dog nail can not be rusted when using, and the anticorrosive coating is a zinc-impregnation anticorrosive coating or a multicomponent-metallization anticorrosive coating. The threaded dog nail of pre-embedded plastic casing pipe concrete sleeper overcomes the defects which exist in the connection of sulphur anchor adopted in the threaded dog nail and the prestress concrete sleeper, has the advantages of simple and convenient construction and long service life, and satisfies the requirement of high speed development of the railroad.
Description
Technical field
The utility model relates to a kind of circuit sleeper fixed part of track traffic, is meant especially to be embedded with the screw spike that the plastic bushing concrete sleeper is used.
Background technology
At present, in the rail of track traffic and being connected of sleeper, what adopted on the market mainly is to connect with concrete sleeper with bolt fastener and screw spike, its method is: prefabricated preset hole on concrete sleeper, adopt the sulfur cement mortar anchorage screw spike during site operation, again the technical scheme that rail and sleeper is fixed together by the bolt fastener.Because there is following defective in this kind technology: when (1) carries out the sulfur cement mortar anchorage construction, need special equipment, cause constructional difficulties; When (2) heating sulphur-bonded mortar, discharge of noxious gases, contaminated environment, the infringement constructor's is healthy; (3) because sulphur is different with the concrete coefficient of expansion, sulphur expands and causes place, sleeper nail hole cracking, the application life of having reduced sleeper; (4) railway spike and nut separate machined need oiling antirust, and railway spike and sleeper are changed difficulty behind sulfur cement mortar anchorage, increased the maintenance load of circuit, the maintenance cost height; (5) the insulating capacity deficiency of concrete sleeper can not satisfy the requirement of railway high speed development.Therefore necessary this is improved.
Summary of the invention
Technical problem to be solved in the utility model is at existing railway spike and nut separate machined, easily get rusty, need oiling antirust, and railway spike and sleeper are behind sulfur cement mortar anchorage, change the deficiency of difficulty, provide a kind of railway spike and nut to be connected as a single entity, be difficult for getting rusty, and the easy novel screw spike of a kind of pre-buried plastic bushing concrete sleeper of maintain and replace.
Implementer's case of the present utility model is: railway spike and nut are connected as one, this screw spike and the supporting use of pre-buried plastic bushing concrete sleeper, and adopt threaded railway spike, change the cylindrical of railway spike into external thread structure, the helicitic texture of railway spike is the jagged PDX screw thread of carrying on the back, the hypotenuse of screw thread is big oblique angle, and the angle of hypotenuse and thread segment is 20 °～45 °, and the pitch scope of railway spike and plastic bushing is 7.5～12。5 millimeters, cooperating between railway spike and the plastic bushing is a kind of loose fit.In addition, on the surface of screw spike one deck antirust coat is arranged, antirust coat can be the zincizing antirust coat, also can be the multicomponent thermochemical treatment antirust coat, non-corrosive in guaranteeing to use.
The utility model has overcome screw spike and has adopted sulfur cement mortar anchorage to connect the above-mentioned defective that exists with prestressed reinforced concrete tie, and have the following advantages: (1) construction is simple and convenient.During fastener for installing, with existing special spanner screw spike is screwed into the plastic bushing sleeper and gets final product, do not need other special equipment in addition; When (2) having solved because of the heating sulphur-bonded mortar, discharge of noxious gases, contaminated environment, the healthy problem of infringement constructor; (3) owing to cancelled sulfur cement mortar anchorage, can not cause place, sleeper nail hole cracking, the application life of having improved sleeper because of sulphur expands; (4) railway spike and nut are made one and are screwed in the plastic bushing sleeper, do not need oiling antirust, railway spike and sleeper be without sulfur cement mortar anchorage, only needs during replacing with special spanner the screw spike plastic bushing sleeper of back-outing to be got final product, reduce the maintenance workload of circuit, reduced maintenance cost; (5) adopt pre-buried plastic bushing concrete sleeper, the insulating resistance value of every kilometer circuit enlarges markedly, and has improved the insulating capacity of circuit greatly, has satisfied the requirement of railway high speed development.
Accompanying drawing and explanation
Fig. 1 is a concrete structure schematic diagram of the present utility model;
Fig. 2 is a concrete structure constructed profile of the present utility model;
Fig. 3 is a general structure schematic diagram of the present utility model.
Among the figure: the 1-railway spike; 2-polished rod section; The 3-changeover portion; The 4-thread segment; The 5-plastic bushing; The 6-head of a nail; The 7-external screw thread; The 8-antirust coat.
The specific embodiment
Accompanying drawing has provided a specific embodiment of the present utility model, from accompanying drawing as can be seen, screw spike 1 described in the utility model is formed (seeing accompanying drawing 1) by the head of a nail 6, polished rod section 2, changeover portion 3 and thread segment 4, wherein the head of a nail 6 is a hexagon, measure-alike with existing railway fastener nut, need not change spanner during loading and unloading, and the head of a nail 6 is connected as a single entity with polished rod section 2, changeover portion 3 and thread segment 4; Be polished rod section 2 below the head of a nail 6, polished rod section 2 is used for ease of installation packing ring, spring, baffle plate; The following of polished rod section 2 is changeover portion 3, below the changeover portion 3 is thread segment 4, at the changeover portion 3 of railway spike 1 and the cylindrical of thread segment 4 external screw thread 7 that matches with plastic bushing 5 internal threads is arranged, be used for cooperating with plastic bushing 5, and the screw thread of changeover portion 3 and thread segment 4 is the jagged PDX screw thread of carrying on the back, and the hypotenuse of screw thread is big oblique angle, and the angle of hypotenuse and thread segment is 20 °-60 °, and the pitch of railway spike 1 and the pitch of plastic bushing match, and railway spike 1 is 7 with the pitch scope of plastic bushing 5.5～12。5 millimeters, cooperating between railway spike 1 and the plastic bushing 5 is a kind of loose fit.In addition, one deck zincizing antirust coat 8 is arranged on the surface of screw spike 1, non-corrosive in guaranteeing to use.
The general structure of the utility model technology as shown in Figure 2, the cancellation sulfur cement mortar anchorage, adopt screw spike 1 to be screwed into the technology of pre-buried plastic bushing 5 concrete sleepers, it is pre-buried to concrete sleeper to be about to plastic bushing, and other pattern size and the technical requirements of concrete sleeper are constant; Nut and railway spike are made one, and other fastener accessories such as spring, gauge apron, plain washer are constant.
Claims (5)
1, the novel screw spike of a kind of pre-buried plastic bushing concrete sleeper, screw spike (1) is made up of the head of a nail (6), polished rod section (2), changeover portion (3) and thread segment (4), it is characterized in that: the head of a nail (6) is connected as a single entity with polished rod section (2), changeover portion (3) and thread segment (4); Below the head of a nail (6) polished rod section (2), the following of polished rod section (2) is changeover portion (3), below the changeover portion (3) is thread segment (4), and the external screw thread (7) that matches with plastic bushing (5) internal thread is arranged at the changeover portion (3) of railway spike (1) and the cylindrical of thread segment (4), and the screw thread of changeover portion (3) and thread segment (4) is the jagged PDX screw thread of carrying on the back, in addition, on the surface of screw spike (1) one deck antirust coat (8) is arranged.
2, the novel screw spike of a kind of pre-buried plastic bushing concrete sleeper according to claim 1, it is characterized in that: the hypotenuse of the external screw thread (7) of the cylindrical of described changeover portion (3) and thread segment (4) is big oblique angle, and the angle of screw thread hypotenuse and thread segment is 20 °-60 °.
3, the novel screw spike of a kind of pre-buried plastic bushing concrete sleeper according to claim 1, it is characterized in that: the pitch scope of described screw spike (1) is 7.5～12.5 millimeters, and cooperating between screw spike (1) and the plastic bushing (5) is a kind of loose fit.
4, the novel screw spike of a kind of pre-buried plastic bushing concrete sleeper according to claim 1, it is characterized in that: described antirust coat (8) is the zincizing antirust coat.
5, the novel screw spike of a kind of pre-buried plastic bushing concrete sleeper according to claim 1, it is characterized in that: described antirust coat (8) is the multicomponent thermochemical treatment antirust coat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032273401U CN2670420Y (en) | 2003-04-08 | 2003-04-08 | Threaded dog nail of preembedded plastic casing pipe concrete sleeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032273401U CN2670420Y (en) | 2003-04-08 | 2003-04-08 | Threaded dog nail of preembedded plastic casing pipe concrete sleeper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2670420Y true CN2670420Y (en) | 2005-01-12 |
Family
ID=34473086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032273401U Expired - Fee Related CN2670420Y (en) | 2003-04-08 | 2003-04-08 | Threaded dog nail of preembedded plastic casing pipe concrete sleeper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2670420Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995504A (en) * | 2012-12-07 | 2013-03-27 | 宁波金鼎紧固件有限公司 | Bolt for railway track |
| CN106283961A (en) * | 2016-09-21 | 2017-01-04 | 中国铁道科学研究院铁道建筑研究所 | A kind of 3D prints screw spike |
-
2003
- 2003-04-08 CN CNU032273401U patent/CN2670420Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995504A (en) * | 2012-12-07 | 2013-03-27 | 宁波金鼎紧固件有限公司 | Bolt for railway track |
| CN106283961A (en) * | 2016-09-21 | 2017-01-04 | 中国铁道科学研究院铁道建筑研究所 | A kind of 3D prints screw spike |
| CN106283961B (en) * | 2016-09-21 | 2018-07-03 | 中国铁道科学研究院铁道建筑研究所 | A kind of 3D printing screw spike |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |