Insulating screw spike

Abstract

The utility model provides an insulating screw spike which comprises a screw spike body, one side, located on a circular truncated cone, of the screw spike body is an anchoring end, and the other opposite end of the screw spike body is a connecting end. The insulating part is formed by a hardened insulating material wrapping the outer side of the anchoring end; wherein a convex or concave structure is arranged on the outer surface of the insulating part, so that the bonding force between the insulating part and the sleeper is increased. When the insulating screw spike is used, the insulating screw spike is installed in a steel mould produced by concrete, sleeper production can be normally carried out, the insulating screw spike is convenient to use, the sleeper produced by utilizing the insulating screw spike is directly fixed with the spike, the insulating requirement is met, the construction process of a railway laying site is simplified, the labor intensity of workers is reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to an insulating spiral spike, which is used in the field of prestressed concrete sleeper production. Background Art

[0002] Rails are the main components of railway tracks. Their function is to guide the wheels of locomotives and vehicles forward, bear the huge pressure of the wheels, and transmit it to the sleepers. In addition, rails have another very important function, which is the transmission of weak current signals on railways. There will be a voltage of more than 1 to more than 3 volts on the two rails of the train. The two rails have one positive pole and one negative pole. When the train wheels press on the two rails, the two circuits are connected to form a loop. This phenomenon will be displayed on the console in the form of a red light band to determine the position of the train. This requires that the two rails must be insulated from the ground, otherwise it is difficult to determine the specific position of the train.

[0003] At present, the insulation of rails is mainly controlled by insulating pads, spike anchors and gauge baffles. Most line insulation adopts insulating pads and spike anchors. Spike anchors, as an important part of railway spike anchors, not only provide various mechanical properties for rails, but also serve as an important part of weak-current insulation of rails. The common method of existing spike insulation is to use a fixture to pour insulating material on-site between the reserved holes of the sleepers and the spikes, and anchor the spikes and sleepers together. This method is complex, inefficient, and labor-intensive for workers. Therefore, how to provide an insulating spiral spike that can meet the insulation requirements and is convenient for construction is an urgent problem to be solved in railway laying. Utility Model Content

[0004] In view of the problems of complex operating process and low construction efficiency when insulating railway spikes, the utility model provides an insulating railway spike, which can be used in the sleeper production stage, so that the produced sleepers are directly fixed together with the railway spikes, which not only meets the insulation requirements, but also can directly lay the sleepers on the construction site without the need to insulate the railway spikes on site, thereby simplifying the on-site construction process of railway laying, reducing the labor intensity of workers, and improving construction efficiency.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an insulating spiral spike, which includes a spiral spike body, a truncated cone protruding along the circumference of the spiral spike body is arranged in the middle of the spiral spike body, one side of the spiral spike body located on the truncated cone is an anchoring end, and the other opposite end is a connecting end; and an insulating part, the insulating part is formed by a hardened insulating material wrapped around the outside of the anchoring end; wherein a protruding or recessed structure is arranged on the outer surface of the insulating part to increase the bonding force between the insulating part and the sleeper. When in use, the insulating spike is installed in the steel mold for concrete production, and the sleeper production can be carried out normally. It is convenient to use, and the sleepers produced by the insulating spiral spike are directly fixed together with the spike, which not only meets the insulation requirements, but also simplifies the on-site construction process of railway laying, reduces the labor intensity of workers, and improves construction efficiency.

[0006] Furthermore, one end surface of the insulating portion is in contact with the truncated cone, and the other end extends out of the anchoring end of the insulating spiral spike.

[0007] Furthermore, the length of the insulating portion extending from the spiral spike body is not less than 10 mm.

[0008] In the above technical solution, the insulating part is a cylinder, a polygonal prism, a truncated cone or a truncated pyramid.

[0009] Alternatively, the insulating portion is a combination of a cylinder and a truncated cone connected to the cylinder, or the insulating portion is a combination of a prism and a truncated cone connected to the prism.

[0010] The structure of the protrusions or grooves on the insulating part of the insulating spiral spike of the above technical solution is as follows: the protrusions are arranged circumferentially or vertically along the outer surface of the insulating part and are arranged at intervals to be in the form of dots or strips protruding from the insulating surface;

[0011] Alternatively, the protrusion is a strip-shaped structure that is arranged on the outer surface of the insulating portion and protrudes outward in a spiral distribution.

[0012] The recessed structure is a plurality of grooves arranged circumferentially or vertically along the outer surface of the insulating portion at intervals;

[0013] Or the recessed structure is a spiral groove arranged on the outer surface of the insulating part.

[0014] Furthermore, the insulating part is a nylon or rubber sleeve sleeved on the outside of the anchoring end.

[0015] Furthermore, the insulating material is sulfur anchor mortar, cement-based anchor mortar, or resin-based anchor mortar, or the insulating material is other insulating materials not limited to the above materials, and other insulating materials that can meet railway requirements can be used.

[0016] Compared with the prior art, the utility model has the following technical effects:

[0017] The insulating spiral spike of the utility model is integrated into one by forming an insulating part through a spiral spike body and an insulating material. The technical solution of the utility model can be applied to the production process of prestressed sleepers. The sleepers produced by the insulating spiral spike of the utility model are fixed together with the spikes, which not only meets the insulation requirements, but also simplifies the on-site construction process of railway laying, reduces the labor intensity of workers, and improves construction efficiency. The method of insulating the spikes and fixing the sleepers is transferred to the production stage from the method of first making the sleepers and then insulating the spikes. When in use, the insulating spikes are installed in the steel mold of concrete production, and the sleeper production can be carried out normally, which is convenient to use. The utility model has a simple structure, ingenious design, is easy to manufacture, and is convenient to use.

[0018] The accompanying drawings, which constitute part of this specification and are used to further understand the present invention, illustrate exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0019] Figure 1 This is one of the structural schematic diagrams of the insulating spiral road spike provided by the utility model;

[0020] Figure 2 yes Figure 1 A schematic diagram of the main structure of the medium-insulated spiral spike showing the anchoring end structure;

[0021] Figure 3 This is another structural schematic diagram of the insulating spiral road spike provided by the utility model;

[0022] Figure 4 This is a schematic diagram of a top view of another structure of the insulating spiral road spike provided by the utility model;

[0023] Figure 5 This is another structural schematic diagram of the insulating spiral road spike provided by the utility model;

[0024] Figure 6 This is another structural schematic diagram of the insulating spiral road spike provided by the utility model.

[0025] The meanings of the numbers in the figure are as follows: 1. spiral spike body, 101. connection end, 102. anchoring end; 2. insulating part; 3. frustum; 4. protrusion; 5. rounded corner. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0028] like Figure 1 and 2 As shown, the embodiment of the utility model is an insulating spiral spike, which includes a spiral spike body 1 and an insulating part 2. One end of the spiral spike body 1 is an anchoring end 102, and the other end is a connecting end 101. A truncated cone 3 is provided near the middle of the spiral spike body. With the truncated cone 3 as the boundary, one end of the spiral spike body 1 is a connecting end 101, and the other end is an anchoring end 102. The truncated cone 3 and the spiral spike body 1 are an integral structure. The provision of the truncated cone 3 can enhance the bending strength of the root of the spiral spike body 1 just out of the rail sleeper surface, and also plays a positioning role. When in use, the lower surface of the truncated cone 3 is flush with the rail sleeper surface, and the length of the thread exposed out of the rail sleeper just meets the standard requirements, thereby improving the convenience of use. In order to further improve the bending resistance of the insulating spiral spike provided by the utility model, the root of the truncated cone 3 will be thickened in the direction toward the spiral spike body 1, and the truncated cone with the thickened structure can be used as other embodiments of the utility model.

[0029] The insulating part 2 of this embodiment is formed by a hardened insulating material wrapped around the anchor end 102. A convex or concave structure is provided on the outer surface of the insulating part 2 to increase the bonding force between the insulating part and the sleeper. The sleeper of this embodiment refers to a prestressed concrete sleeper. One end surface of the insulating part 2 is in contact with the truncated cone 3. In other words, Figure 1 and 2As shown, the lower surface of the truncated cone 3 is fitted with the upper surface of the insulating part 2, and the other end of the insulating part 2 extends out of the anchor end 102 of the insulating spiral spike, and the extension length is not less than 10 mm to ensure the reliability of insulation and the stability and durability of its connection with the sleeper. The insulating material of the insulating part of the utility model is sulfur anchor mortar, cement-based anchor mortar, or resin-based anchor mortar, but is not limited to the above materials. Other materials that can meet the railway standards can be selected, which are not listed here one by one. Under the guidance of the idea of ​​this application, reasonable selection of insulating materials is within the protection scope of the utility model, such as setting the insulating part 2 as a nylon or rubber sleeve on the outside of the anchor end 102, or brushing an insulating coating on the anchor end 102. When in use, a connecting block wrapped thereon for connecting with the sleeper is provided on the outside of the sleeve and the outside of the insulating coating.

[0030] In this embodiment, if Figure 1 and 2 As shown, the connecting end 102 is a cylinder with threads on the outer surface, and is connected to the rail through the connecting end 101. The anchoring end 101 is rod-shaped, such as Figure 2 The outer surface of the anchoring end 102 shown has a spiral groove, and the insulating part 2 is a cylinder, and a protrusion 4 is provided on its outer surface. The protrusion 4 is a strip structure provided on the outer surface of the insulating part 2 and protruding outward in a spiral distribution.

[0031] When manufacturing the insulating spiral spike of the present embodiment, the anchoring end 102 is inserted into the mold cavity of the mold, and the insulating material is poured into the mold cavity. After the insulating material hardens and solidifies, the insulating part 2 is formed to wrap around the outside of the anchoring end 102. When using the insulating spiral spike of the present embodiment, the insulating part 2 is inserted into the prestressed concrete sleeper forming steel mold, and then the existing process (such as the unit flow method) is used to prepare the prestressed concrete sleeper, and the insulating spike of the present embodiment is fixed on the manufactured prestressed concrete sleeper.

[0032] As an embodiment of the present invention not shown in the figure, the protrusions are a plurality of dots or strips arranged at intervals along the circumferential or vertical direction of the outer surface of the insulating portion and protruding from the insulating surface.

[0033] like Figure 3 As shown, as another embodiment of the utility model: in order to improve the bonding force between the insulating part and the sleeper, the outer surface of the insulating part of the utility model is provided with a recessed structure, and the recessed structure of this embodiment is a plurality of grooves 5 arranged at intervals along the circumference of the outer surface of the insulating part 2.

[0034] In other embodiments shown in the figures, a plurality of grooves arranged vertically and spaced apart are provided on the outer surface of the insulating portion 2. Of course, in other embodiments, the grooves may also be arranged in a spiral along the outer surface of the insulating portion 2.

[0035] like Figure 4 As shown, as another embodiment of the utility model: the insulating spiral spike of this embodiment includes a spiral spike body 1 and an insulating part 2, the spiral spike body 1 is a round rod, and its two ends are respectively provided with external threads to form a connecting end 101 and an anchoring end 102, the insulating part 2 is a polygonal surface with an end away from the connecting end 102 as the bottom surface and a polygonal prism formed by moving along the spiral spike body 1 toward the connecting end 102, and the cross-section of the polygonal prism is a triangle, a quadrilateral, a pentagon, etc. Figure 4 The cross section of the insulating part 2 shown in the figure is triangular, and the surface of the triangular prism is provided with a plurality of protrusions arranged along its circumference. Figure 4 The corners of the insulating portion 2 of the embodiment shown are rounded.

[0036] On the basis of this embodiment, a protrusion or depression structure of any shape can be provided on the outer surface of the insulating part 2 to increase the bonding force between the insulating part 2 and the sleeper.

[0037] like Figure 5 As shown in FIG. 1 , as another embodiment of the insulating spiral spike of the utility model, an insulating spiral spike of the present embodiment comprises a spiral spike body 1 and an insulating portion 2. The insulating portion 2 is an inverted truncated cone formed by a circular surface with an end away from the connecting end 102 as the bottom surface and moving along the spiral spike body 1 toward the connecting end 102 and the bottom surface contour gradually increasing, as shown in FIG. Figure 5 The frustum of the cone shown has its insertion end (such as Figure 5 The outer diameter of the lower end of the insulating portion 2 shown in the figure, that is, the end which is first inserted into the sleeper steel mold when used, is smaller than the diameter of the other end.

[0038] like Figure 6 As shown, as another embodiment of the utility model, the insulating spiral spike of this embodiment includes a spiral spike body 1 and an insulating part 2, the insulating part 2 is a hardened insulating material wrapped on the anchoring end 102 of the spiral spike body 1, and the insulating part 2 is a combination of a prism and a truncated pyramid connected to the prism. The insulating part 2 can be designed as a cylinder or a prism. As other embodiments of the utility model, the insulating part 2 can also be made into other special shapes, such as a structure composed of a pyramid and a truncated pyramid.

[0039] The insulating spiral spikes of the above-mentioned embodiment are applied to the production process of prestressed concrete sleepers, the produced sleepers are fixed together with the insulating spiral spikes, and the insulation of the spiral spikes is transferred to the production stage by the method of first making the sleepers and then fixing the spikes, which not only meets the insulation requirements, but also simplifies the on-site construction process of railway laying, reduces the labor intensity of workers, and improves construction efficiency.

[0040] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An insulating spiral spike, characterized in that: The insulating spiral spike comprises: A spiral spike body, wherein a truncated cone protruding along the circumference of the spiral spike body is provided in the middle of the spiral spike body, one side of the spiral spike body located on the truncated cone is an anchoring end, and the other opposite end is a connecting end; and an insulating portion, the insulating portion being composed of an insulating material disposed outside the anchoring end; Wherein, a protrusion or a depression structure is arranged on the outer surface of the insulating part to increase the bonding force between the insulating part and the sleeper.

2. The insulating spiral spike according to claim 1, characterized in that: One end surface of the insulating part is in contact with the truncated cone, and the other end extends out of the anchoring end of the insulating spiral spike.

3. The insulating spiral spike according to claim 1 or 2, characterized in that: The length of the insulating portion extending from the spiral spike body is not less than 10 mm.

4. The insulating spiral spike according to claim 2, characterized in that: The insulating part is formed by hardening the insulating material.

5. The insulating spiral spike according to claim 4, characterized in that: The insulating part is a cylinder, a polygonal column, a truncated cone or a truncated pyramid.

6. The insulating spiral spike according to claim 4, characterized in that: The insulating part is composed of a cylinder and a truncated cone connected to the cylinder, or the insulating part is composed of a prism and a truncated cone connected to the prism.

7. The insulating spiral spike according to claim 4, characterized in that: The protrusions are arranged circumferentially or vertically along the outer surface of the insulating portion and are arranged at intervals to be in the form of dots or strips protruding from the insulating surface; Alternatively, the protrusion is a strip-shaped structure that is arranged on the outer surface of the insulating portion and protrudes outward in a spiral distribution.

8. The insulating spiral spike according to claim 4, characterized in that: The recessed structure is a plurality of grooves arranged circumferentially or vertically along the outer surface of the insulating portion at intervals; Alternatively, the recessed structure is a spirally arranged groove on the outer surface of the insulating portion.

9. The insulating spiral spike according to claim 4, characterized in that: The insulating material is sulfur anchor mortar, cement-based anchor mortar, or resin-based anchor mortar.

10. The insulating spiral spike according to claim 1, characterized in that: The insulating part is a nylon or rubber sleeve sleeved on the outside of the anchoring end, or an insulating coating arranged on the outside of the anchoring end.

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