Sleeper

Abstract

The utility model discloses a sleeper which comprises a body and an insert, a mounting groove is arranged on the body, the insert comprises a carrier capable of being embedded in the mounting groove and a threaded sleeve embedded in the carrier, and the insert further comprises a locking piece for locking the carrier embedded in the mounting groove to prevent the carrier from being separated from the mounting groove. According to the sleeper with the structure, due to the fact that the threaded sleeve is embedded in the carrier to form the insert, and the insert is installed in the installation groove reserved in the sleeper in advance in an embedded mode and locked through the locking piece, when the threaded sleeve is damaged, only the whole insert needs to be taken out and replaced, replacement is convenient, and the maintenance cost is low.

Description

Technical Field

[0001] The utility model relates to the field of rail transportation, in particular to a sleeper. Background Art

[0002] The rails of the railway are fixed to the sleepers by fasteners. The anchor bolts in the fasteners need to be threadedly connected to the sleepers. Generally, a threaded sleeve is embedded in the sleepers as a connector connected to the anchor bolts when casting the sleepers. The sleeve is made of high-strength plastic and has certain strength and elasticity. However, the sleeve is prone to damage during use, especially on lines with small curve radii. Therefore, it is necessary to regularly inspect and replace damaged sleeves to ensure the safe operation of the railway. To replace the sleeve, you need to first remove the original sleeve embedded in the concrete sleeper. Usually, a water drill is used to drill holes, and then it is crushed and pried out with a tool, and then the new sleeve is embedded. This is not only time-consuming and labor-intensive, but also poses a safety hazard. Once the installation hole is damaged, the entire sleeper needs to be replaced, which increases maintenance costs. Utility Model Content

[0003] In order to provide a sleeper with convenient sleeve removal, the technical solution adopted by the utility model is:

[0004] A rail sleeper comprises a body and an insert, wherein the body is provided with a mounting groove, the insert comprises a carrier which can be embedded in the mounting groove and a threaded sleeve pre-buried in the carrier, and also comprises a locking member which locks the carrier embedded in the mounting groove to prevent it from escaping from the mounting groove.

[0005] Furthermore, a limiting groove is provided on the carrier, a limiting hole is provided on the body, and the locking piece is inserted into the limiting hole and cooperates with the limiting groove to lock the carrier.

[0006] For the sleeper adopting this structure, since the threaded sleeve is pre-buried in the carrier to form an insert, and the insert is installed in the installation groove pre-reserved on the sleeper by embedding and locked by a locking piece, when the threaded sleeve is damaged, it is only necessary to take out the insert as a whole and replace it, which is convenient for replacement and has low maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 Schematic diagram of sleeper structure

[0008] Figure 2 This is the exploded view of the sleeper;

[0009] Figure 3 This is a cross-sectional view of the sleeper. DETAILED DESCRIPTION

[0010] The following structural drawings and specific embodiments further illustrate the sleeper structure of the utility model in detail.

[0011] like Figure 1 The sleeper shown includes a body 1, which is laid in the track as the sleeper body for carrying and installing rails. An insert 2 is installed on the body 1 by embedding. In order to prevent the insert 2 from detaching from the body 1, a locking member 3 is also provided on the body 1 to lock the insert.

[0012] The above-mentioned insert 2 is used to connect with the anchor bolt in the fastener, and includes a carrier 2-1 and a threaded sleeve 2-2. The carrier 2-1 is cast by concrete. Figure 3 The threaded sleeve 2-2 is embedded in the carrier 2-1 when the carrier 2-1 is manufactured so that the two are firmly combined into a whole. The anchor bolt is mainly threadedly connected by the threaded sleeve 2-2.

[0013] like Figure 2 As shown, the insert 2 can be embedded in the sleeper, and the body 1 is provided with a mounting groove 1-1, and the insert 2 is embedded in the mounting groove 1-1 to be assembled with the body 1. The locking member 3 in this embodiment is a pair of metal bars, and the body 1 is provided with a limiting hole 1-2, and the locking member 3 can be inserted into the body 1 through the limiting hole 1-2 and partially placed in the mounting groove 1-1. The limiting grooves 2-3 are respectively provided on the opposite sides of the carrier 2-1, and the part of the locking member 3 placed in the mounting groove 1-1 is just stuck in the limiting groove 2-3 to lock the carrier 2-1.

[0014] During installation, the insert 2 is first placed in the installation groove 1-1, and then the locking member 3 is inserted into the limiting hole 1-2 to lock the insert 2. When the insert 2 needs to be replaced, the locking member 3 is first taken out, and then the insert 2 is taken out from the installation groove 1-1 for replacement.

Claims

1. A sleeper, characterized in that: The invention comprises a body (1) and an insert (2), wherein the body (1) is provided with a mounting groove (1-1), the insert (2) comprises a carrier (2-1) which can be embedded in the mounting groove (1-1) and a threaded sleeve (2-2) pre-buried in the carrier (2-1), and also comprises a locking member (3) which locks the carrier (2-1) embedded in the mounting groove (1-1) to prevent it from being separated from the mounting groove (1-1).

2. A sleeper according to claim 1, characterized in that: A limiting groove (2-3) is provided on the carrier (2-1), a limiting hole (1-2) is provided on the body (1), and the locking piece (3) is inserted into the limiting hole (1-2) and cooperates with the limiting groove (2-3) to lock the carrier (2-1).

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