CN2421312Y

CN2421312Y - Preburied plastic sleeve and screw spike for concrete sleeper

Info

Publication number: CN2421312Y
Application number: CN 99250407
Authority: CN
Inventors: 李桂成; 傅振馗; 林茂春; 刘忠惠; 阎富生; 苏厚庆; 张永学
Original assignee: ANSHAN PERMANENT WAY EQUIPMENT FACTORY MINISTRY OF RAILWAYS
Current assignee: Anshan public works equipment factory
Priority date: 1999-11-29
Filing date: 1999-11-29
Publication date: 2001-02-28
Anticipated expiration: 2009-11-29

Abstract

The utility model relates to a prestressed concrete sleeper, which is additionally provided with an anchor device. A spike used by the concrete needs to be done insulating treatment with the concrete sleeper; the anchor device is a member specially used in a prestressed structure, and is a reinforcing member which can be manufactured with materials except steel, such as a reinforcing structural member manufactured with glass and plastic or incompletely manufactured with steel; the inner of a concrete sleeper body is provided with a pre-embedded plastic casing pipe, and the inner of the pre-embedded plastic casing pipe is provided with a screw thread spike. The screw thread spike has the advantages of easy and quick disassembly, simple and compact structure, low cost, etc., the operation cycle of laying track and laying sleeper can be shortened, and the service life of the concrete sleeper can be prolonged.

Description

A kind of pre-buried plastic bushing and screw spike of concrete sleeper

The utility model relates to the prestressed reinforced concrete tie that sleeper adds anchor device; Railway spike that concrete is used needs and sleeper be done insulation and handles, railway spike top can supporting clamping element direct fixing rail on sleeper; Anchor device is specifically designed to the member in the prestressed structure, anchor device uses the reinforcement of the other materials making except that steel as using glass, the pre-buried plastic bushing and the screw spike of plastics or the reinforcing structural members, particularly a kind of concrete sleeper not exclusively done with steel.

The railroad sleeper member mostly is that the screw spike that adopts is fixed in the concrete crosstie with the sulphur grappling at present, ubiquity concrete sleeper and is needed prefabricated preset hole, adopt sulphur that the screw spike grappling is fixed in the sleeper, the generation longitudinal splitting is scrapped whole sleepers between two preformed holes owing to the sulphur volume expansion causes concrete sleeper to be everlasting, screw spike can't be dismantled when sleeper is scrapped, complicated cumbersome cost is higher when changing the concrete sleeper construction, need a large amount of man-hours of waste and expense, the intact screw spike local damage of concrete sleeper screw spike grappling fixing back sleeper need be changed screw spike particularly outstanding difficulty inconvenience especially, waste time and energy, it is comparatively serious when the operation of the sulphur of being grappling retaining thread railway spike is arranged again to environment generation pollution, the screw spike grappling is fixing need be bigger at the required occupation of land site area of construction of railways field operation, the longer construction operation efficient of pillow cycle of laying a railway track is lower, the concrete sleeper bulk strength is relatively poor, weight capacity is lower, stability and shock resistance are relatively poor, the application life of concrete sleeper is lower, the shortcomings such as normal running speed of railway transportation of having changed concrete sleeper amount considerable influence, for overcoming above-mentioned existing weak point, the utility model has designed a kind of pre-buried plastic bushing and screw spike of concrete sleeper.

The purpose of this utility model provides a kind of screw spike convenient disassembly of concrete sleeper, it is simply simple and efficient to change the concrete sleeper construction, time saving and energy saving, shortening lays a railway track rests the head on duty cycle, improve construction operation efficient, improve bulk strength, weight capacity, stability and the shock resistance of concrete sleeper, improve and prolong concrete sleeper application life, the pre-buried plastic bushing and the screw spike of concrete sleeper.

The utility model is achieved in that and is separately installed with four pre-buried plastic bushings in the concrete sleeper body, pre-buried plastic bushing is socket shape for highstrenghtpiston's material, on the outside wall surface of pre-buried plastic bushing, be cast with anti-skidding enhancing circular arc line, on the interior sidewall surface of pre-buried plastic bushing, be cast with down cup type wood snail line, pre-buried plastic bushing outer wall is cast contact mutually with the concrete sleeper body and is one precast construction part, in the pre-buried plastic bushing of concrete sleeper body, be rotatably installed with screw spike, screw spike is cylindrical, upper segment at screw spike has regular screw threads, have at the middle part of screw spike be hexagonal square screw boss, the lower face cover that screws boss at the screw spike middle part is equipped with seal washer, the lower section of screw spike have with pre-buried plastic bushing interior sidewall surface on correspondingly fall cup type wood snail line, the screw spike lower section is fallen cup type wood snail line and falling of the pre-buried plastic bushing interior sidewall surface cup type wood snail line phasing that is fastened and is contacted, and anchor ring contacts on the seal washer lower face that the screw spike middle part screws the boss lower face and the pre-buried plastic bushing.

The utility model has been avoided because of the sulphur volume expansion causes concrete sleeper to produce longitudinal splitting whole sleepers being scrapped with sulfur cement mortar anchorage method retaining thread railway spike, screw spike convenient disassembly when sleeper is scrapped, simple cost is lower when changing the concrete sleeper construction, a large amount of man-hours of waste and expense have been avoided, it is simple and efficient particularly outstanding when the intact screw spike local damage of concrete sleeper need be changed screw spike, time saving and energy saving, environmentally safe, the required occupation of land site area of construction of railways field operation is less, having shortened lays a railway track rests the head on duty cycle, construction operation efficient is greatly improved, improved the bulk strength of concrete sleeper, weight capacity, stability and shock resistance, improve the application life that has prolonged concrete sleeper, the expense and the operating cost that switches tracks of year replacing concrete sleeper have been reduced, it is less to change concrete sleeper and screw spike amount, avoid and reduced influence the railway transportation normal running speed, the economic results in society effect is obviously remarkable, screw spike is fixedly connected easy for installation simple when construction, reduced the consumption of material, easy to maintenance, safe and reliable, and it is simple and compact for structure, it is easy to be easy to manufacture craft, be easy to promote and use, advantage such as with low cost.

Concrete structure of the present utility model and embodiment are provided by the following drawings.

Fig. 1 is a general structure schematic diagram of the present utility model;

Fig. 2 is an A-A part section structural representation of the present utility model.

To be described in further detail concrete structure of the present utility model and embodiment below in conjunction with accompanying drawing.

Referring to accompanying drawing 1, shown in Figure 2: as in concrete sleeper body 1, to be separately installed with four pre-buried plastic bushings 4, pre-buried plastic bushing 4 is socket shape for highstrenghtpiston's material, on the outside wall surface of pre-buried plastic bushing 4, be cast with anti-skidding enhancing circular arc line, on the interior sidewall surface of pre-buried plastic bushing 4, be cast with down cup type wood snail line, pre-buried plastic bushing 4 outer walls are cast contact mutually with concrete sleeper body 1 and are one precast construction part, in concrete sleeper body 1 pre-buried plastic bushing 4, be rotatably installed with screw spike 2, screw spike 2 is cylindrical, upper segment at screw spike 2 has regular screw threads, have at the middle part of screw spike 2 be hexagonal square screw boss 3, the lower face cover that screws boss 3 at screw spike 2 middle parts is equipped with seal washer 5, the lower section of screw spike 2 have with pre-buried plastic bushing 4 interior sidewall surface on correspondingly fall cup type wood snail line, screw spike 2 lower section are fallen cup type wood snail line and falling of the pre-buried plastic bushing 4 interior sidewall surface cup type wood snail line phasing that is fastened and are contacted, and seal washer 5 lower faces that screw spike 2 middle parts screw boss 3 lower faces contact with pre-buried plastic bushing 4 upper end anchor rings.

Claims

1, a kind of pre-buried plastic bushing and screw spike of concrete sleeper, it is by concrete sleeper body (1), pre-buried plastic bushing (4), screw spike (2) and seal washer (5) are formed, it is characterized in that: have four pre-buried plastic bushings (4) in the concrete sleeper body (1) respectively, pre-buried plastic bushing (4) is socket shape, on the outside wall surface of pre-buried plastic bushing (4), has anti-skidding enhancing circular arc line, on the interior sidewall surface of pre-buried plastic bushing (4), has down cup type wood snail line, pre-buried plastic bushing (4) outer wall is cast contact mutually with concrete sleeper body (1) and is one precast construction part, in the pre-buried plastic bushing of concrete sleeper body (1) (4), has screw spike (2), screw spike (2) is cylindrical, upper segment at screw spike (2) has regular screw threads, have at the middle part of screw spike (2) be hexagonal square screw boss (3), the lower face that screws boss (3) at screw spike (2) middle part has seal washer (5), the lower section of screw spike (2) have with pre-buried plastic bushing (4) interior sidewall surface on correspondingly fall cup type wood snail line, screw spike (2) lower section is fallen the cup type wood snail line phasing that is fastened that falls of cup type wood snail line and pre-buried plastic bushing (4) interior sidewall surface and is contacted, and anchor ring contacts on seal washer (5) lower face that screw spike (2) middle part screws boss (3) lower face and the pre-buried plastic bushing (4).

2, the pre-buried plastic bushing and the screw spike of concrete sleeper according to claim 1 is characterized in that: pre-buried plastic bushing (4) is highstrenghtpiston's material.