Special sleeve positioning column for prestressed concrete switch tie

Abstract

The utility model belongs to the technical field of sleeve positioning, and particularly relates to a sleeve positioning column special for a prestressed concrete switch tie, which comprises a positioning column body, the positioning column body comprises a nail cap and a nail body, a rubber sleeve is nested on the outer surface of the nail body, external threads are arranged outside the rubber sleeve, and a groove or a through hole is arranged on the outer surface of the nail body. The positioning column has the advantages that when the positioning column is used, the positioning column extends into the casing pipe, due to the fact that the contact portions of the positioning column and the casing pipe are made of plastic, demolding is easy, and the phenomena that a casing pipe opening is damaged and the periphery of the casing pipe is cracked are greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to sleeve positioning technical field especially relates to a special sleeve positioning column of prestressed concrete frog. BACKGROUND

[0002] The positioning column for railway frog is mainly used in the construction or maintenance process of railway track, especially the work related to the turnout, and is usually used in the sleeve construction of the railway turnout (frog) area, aiming to ensure the correct positioning of the sleeve and can withstand the high load and complex environmental conditions of the track area. The positioning column for railway frog is a key equipment in the installation and maintenance of railway turnout, which can ensure the accurate positioning of the sleeve and track structure, and improve the safety and service life of railway facilities.

[0003] In actual use process, the existing prestressed concrete frog sleeve mostly adopts the positioning column of complete iron when fixing, which passes through the model bottom and is directly fixed with the sleeve, which can easily cause the sleeve mouth damage and the sleeve surrounding ring crack phenomenon, and affects the use effect. UTILITY MODEL CONTENTS

[0004] Based on the technical problem that the existing prestressed concrete frog is prone to damage and ring crack during fixing, the utility model provides a special sleeve positioning column for prestressed concrete frog.

[0005] The utility model provides a special sleeve positioning column for prestressed concrete frog, which comprises a positioning column body, the positioning column body comprises a nail cap and a nail body, the outer surface of the nail body is nested with a rubber sleeve, the outer part of the rubber sleeve is provided with external threads, and the nail body is provided with a groove or a through hole.

[0006] Preferably, the top center of the nail cap is provided with a hole, and the hole is provided with internal threads.

[0007] Preferably, it further comprises a fixing column, one end of the fixing column is fixed with the inner wall of the rubber sleeve, and the other end extends into the groove or through hole on the nail body.

[0008] Preferably, the outer surface of the nail body is provided with a through hole.

[0009] Preferably, the fixing column is a character-shaped structure, the central part is clamped in the through hole of the nail body, and the two end parts of the fixing column are fixed with the inner wall of the rubber sleeve.

[0010] Preferably, the outer surface of the nail body is provided with two through holes.

[0011] Preferably, the two through holes are communicated and vertically intersected in the interior of the nail body, and form a cross-shaped structure.

[0012] Preferably, the fixing column is a cross-shaped structure, the center part is clamped in the cross-shaped through hole of the nail body, and four end parts of the fixing column are fixed to the inner wall of the rubber sleeve.

[0013] Preferably, the rubber sleeve and the fixing column are integrally formed by injection molding.

[0014] By opening two communicating through holes, injection molding operation is facilitated, the fixing column in the two through holes is cross-shaped or fork-shaped, the fixing column is integrally formed with the rubber sleeve by injection molding, the firmness and stability between the fixing column body and the rubber sleeve are improved, and subsequent installation is facilitated.

[0015] The utility model discloses the beneficial effects are: through setting up two through holes of intercommunication, the fixed column is formed through injection molding, guarantees the connecting property and the strength between the fixing column body and the rubber sleeve, and when using, the present positioning column stretches into the sleeve, because the contact part of positioning column and sleeve is plastic, has elasticity and is easy to demould, greatly reduces the phenomenon of sleeve mouth breakage and sleeve surrounding ring crack. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is the structural schematic diagram of the utility model;

[0017] Fig. 2 It is the sectional view of the utility model.

[0018] In the drawing: 1, nail cap; 2, rubber sleeve; 3, external thread; 4, internal thread; 5, through hole. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0020] Referring to Figs. 1-2 A sleeve positioning column special for prestressed concrete frog sleeper, including positioning column body, the positioning column body includes nail cap 1 and nail body, the outer surface of the nail body is nested with rubber sleeve 2, the outer part of the rubber sleeve 2 is provided with external thread 3, and the nail body is provided with through hole 5.

[0021] The top center of the nail cap 1 is provided with a hole, and the hole is provided with an internal thread 4.

[0022] In order to fix the rubber sleeve 2, a fixing column is also provided, one end of the fixing column is fixed to the inner wall of the rubber sleeve 2, and the other end extends into the through hole 5 on the nail body.

[0023] When the through hole is arranged on the outer surface of the nail body, the fixing column is a character-shaped structure, the center part of which is clamped in the through hole of the nail body, and the two ends of the fixing column are fixed to the inner wall of the rubber sleeve 2.

[0024] When the two through holes 5 are arranged on the outer surface of the nail body, the two through holes 5 are communicated with each other inside the nail body and intersected vertically to form a cross-shaped structure. The fixing column is a cross-shaped structure, the center part of which is clamped in the cross-shaped through hole 5 of the nail body, and the four ends of the fixing column are fixed to the inner wall of the rubber sleeve 2.

[0025] The rubber sleeve 2 and the fixing column are integrally formed by injection molding.

[0026] During production, the steel positioning column body is placed in the mold corresponding to the rubber sleeve, and the injection molding operation is performed. The injection molding material is wrapped outside the positioning column body to form the rubber sleeve, and the injection molding material also flows into the through hole to form the fixing column. The rubber sleeve 2 and the fixing column are integrally formed, which improves the firmness and stability between the positioning column body and the rubber sleeve 2, thereby facilitating subsequent installation.

[0027] When used, the utility model is directly fixed together with the sleeve from the bottom of the model, which can play a positioning role. Since the contact parts of the structure and the sleeve are all plastic, demolding is easy, and the damage of the sleeve opening and the ring crack around the sleeve are greatly reduced.

[0028] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A prestressed concrete special sleeve positioning column for a switch tie, comprising a positioning column body, characterized in that: The positioning column body comprises a nail cap (1) and a nail body, the outer surface of the nail body is nested with a rubber sleeve (2), the outer part of the rubber sleeve (2) is provided with external threads (3), and the nail body is provided with a slot or a through hole (5).

2. The prestressed concrete special sleeve positioning column for switch sleeper according to claim 1, characterized in that: A hole is arranged at the top center of the nail cap (1), and the hole is provided with internal threads (4).

3. The prestressed concrete special sleeve positioning column for switch sleeper according to claim 1, characterized in that: Further comprising a fixing column, one end of the fixing column is fixed with the inner wall of the rubber sleeve (2), and the other end extends into the slot or the through hole (5) on the nail body.

4. The prestressed concrete special sleeve positioning column for switch sleeper according to claim 3, characterized in that: The outer surface of the nail body is provided with a through hole.

5. The prestressed concrete special sleeve positioning column for switch sleeper according to claim 4, characterized in that: The fixing column is in a character shape structure, the central part is clamped in the through hole of the nail body, and the two end parts of the fixing column are fixed with the inner wall of the rubber sleeve (2).

6. The prestressed concrete special sleeve positioning column for switch sleeper according to claim 3, characterized in that: The outer surface of the nail body is provided with two through holes.

7. The prestressed concrete special sleeve positioning column for switch sleeper according to claim 6, characterized in that: The two through holes (5) are communicated with each other in the interior of the nail body and vertically intersected, forming a cross shape structure.

8. The prestressed concrete switch tie special sleeve positioning column according to claim 7, characterized in that: The fixing column is in a cross shape structure, the central part is clamped in the cross shape through hole (5) of the nail body, and the four end parts of the fixing column are fixed with the inner wall of the rubber sleeve (2).

9. The prestressed concrete special sleeve positioning column for switch sleeper according to claim 3, characterized in that: The rubber sleeve (2) and the fixing column are integrally formed by injection molding.

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