Novel quickly-implanted nylon expansion plug for sleeper

Abstract

The utility model provides a novel quickly-implanted nylon expansion plug for a sleeper, and belongs to the technical field of railway sleeper accessories. Comprising expansion plug small petals and expansion plug connecting ribs. The number of the small expansion plug petals is multiple, and the small expansion plug petals are in saddle-shaped longitudinal symmetry. The expansion plug connecting rib is in a circular ring shape. The expansion plug small petals are circumferentially arranged, the expansion plug connecting rib penetrates through the middles of the expansion plug small petals, and the expansion plug small petals rotate around the expansion plug connecting rib so that the nylon expansion plug can be opened and closed. According to the scheme, the quick embedded nylon expansion plug for the sleeper replaces an elastic non-split fastener type embedded sleeve in the prior art, and the problems that the existing embedded sleeve is tripped in the use process, and the difficulty of additional anchor changing operation is increased for each work section are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to railway sleeper accessory technical field, concretely relates to a new type of quick implantable nylon expansion plug for sleeper. BACKGROUND

[0002] At present, two common types of railway track fasteners are elastic split type and elastic non-split type track fasteners, and the connection mode of the track fasteners with the track and the sleeper is to realize the connection through the anchor bolt or the spiral spike and the embedded sleeve of the sleeper. Moreover, the embedded sleeve becomes the mainstream product of the railway sleeper accessory due to the superior mechanical properties of the nylon material. However, in the line operation practice, the embedded sleeve often appears to be decoupled due to the influence of the vehicle irregular load, which increases the difficulty of the additional anchor modification operation for each maintenance section.

[0003] Therefore, based on the requirement of completely improving the reliability of the fatigue resistance and damage resistance of the embedded sleeve, starting from the actual working condition of each type of fastener, the interface mechanism of the connection between the rail and the sleeper is deeply analyzed, and a new type of quick implantable nylon expansion plug for sleeper is innovatively conceived to replace the embedded sleeve of the elastic non-split type fastener. Through the expansion force of the nylon expansion plug and the T-shaped bolt and the frictional resistance of the nylon expansion plug and the sleeper hole, the purpose of fastening the elastic strip is achieved. SUMMARY

[0004] The utility model solves the technical problem: the utility model aims at providing a new type of quick implantable nylon expansion plug for sleeper, which is used to replace the embedded sleeve of the elastic non-split type fastener in the prior art, solves the disease of decoupling in the use of the existing embedded sleeve, and increases the difficulty of the additional anchor modification operation for each maintenance section.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0006] The new type of quick implantable nylon expansion plug for sleeper comprises an expansion plug petal and an expansion plug connecting rib.

[0007] The expansion plug petal is provided with multiple pieces, and the expansion plug petal is symmetrically arranged in a saddle shape.

[0008] The multiple expansion plug petals are circumferentially arranged, the expansion plug connecting rib passes through the middle part of the multiple expansion plug petals, and the expansion plug petal rotates around the expansion plug connecting rib to open and close the nylon expansion plug.

[0009] Further limitation of the above-mentioned scheme, the expansion plug petal is provided with 5 pieces, and the middle part of the expansion plug petal is provided with a perforation for the expansion plug connecting rib to pass through. When the upper end of the expansion plug petal is folded into a cylindrical tube shape, the lower end of the expansion plug petal is opened into a fan-shaped horn, and vice versa.

[0010] In furtherance of the above-mentioned scheme, the plug-in small piece is made of glass fiber reinforced polyamide.

[0011] In furtherance of the above-mentioned scheme, the plug-in small piece is made of glass fiber reinforced polyamide.

[0012] In furtherance of the above-mentioned scheme, the plug-in small piece is made of glass fiber reinforced polyamide.

[0013] In furtherance of the above-mentioned scheme, the plug-in small piece is made of glass fiber reinforced polyamide.

[0014] In furtherance of the above-mentioned scheme, the plug-in small piece is made of glass fiber reinforced polyamide.

[0015] The advantages of the present application compared with the prior art are:

[0016] 1. The plug-in small piece of the present application replaces the pre-buried sleeve of the elastic non-split fastener type in the prior art, and through the expansion force of the nylon plug-in small piece and the T-shaped bolt and the frictional resistance between the nylon plug-in small piece and the tie hole, the purpose of fastening the elastic strip is achieved, and the problem of disengagement of the pre-buried sleeve in use is solved, and the difficulty of additional anchor improvement operation for each work section is reduced.

[0017] 2. The nylon plug-in small piece in the present application is composed of multiple plug-in small pieces, the plug-in small piece is rotatable around the plug-in small piece, the nylon plug-in small piece is opened and closed, the frictional resistance between the outer wall of the nylon plug-in small piece and the inner wall of the tie hole is further increased under the expansion force of the T-shaped bolt, and thus the good anti-pulling force is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The front view of the plug-in small piece of the present application is provided.

[0019] Figure 2 The front view of the plug-in small piece of the present application is provided.

[0020] Figure 3 The A-A sectional view of the present application is provided. Figure 1

[0021] Figure 4 The perspective structural view of the plug-in small piece of the present application is provided.​

[0022] Figure 5 is the front view of the expansion plug small valve in the utility model;

[0023] Figure 6 is the plan view of the expansion plug small valve in the utility model;

[0024] Figure 7 is the left view of the expansion plug small valve in the utility model;

[0025] Figure 8 is the B-B sectional view in the utility model Figure 5 ;

[0026] Figure 9 is the three-dimensional structure view of the expansion plug small valve in the utility model;

[0027] Figure 10 is the structure schematic view of the expansion plug rib in the utility model;

[0028] Figure 11 is the schematic view of the nylon expansion plug being loaded into the concrete sleeper in the utility model embodiment;

[0029] Figure 12 is the schematic view of the nylon expansion plug being loaded into the concrete sleeper in the utility model embodiment;

[0030] Figure 13 is the schematic view before the T-shaped bolt being installed in the utility model embodiment;

[0031] Figure 14 is the schematic view when the T-shaped bolt is installed in the utility model embodiment;

[0032] Figure 15 is the schematic view of the nylon expansion plug, the concrete sleeper and the T-shaped bolt being assembled in the utility model embodiment;

[0033] Figure 16 is the schematic view of the concrete sleeper and the rail fastener being assembled in the utility model embodiment. DETAILED DESCRIPTION

[0034] The technical solutions 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, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the utility model.

[0035] It is to be understood that the terminology "including", "comprising", or any other variation thereof, is intended to cover a non-exclusive inclusion such that process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by an "including a" does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the recited element.

[0036] Reference is made to Figures 1-16 for a detailed description of the embodiments of the present application.

[0037] Embodiment 1: A new type of fast-embedded nylon plug for sleepers, as shown in Figures 1-4 , comprising a plug petal 1 and a plug web 2; the plug petal 1 is provided with multiple pieces, and the plug petal 1 is symmetrically arranged in a saddle shape; the plug web 2 is in the shape of a circular ring.

[0038] A plurality of plug petals 1 are arranged circumferentially, and the plug web 2 passes through the middle of the plurality of plug petals 1, and the plug petals 1 rotate around the plug web 2 to open and close the nylon plug.

[0039] Preferably, as shown in Figures 5-9 , the plug petal 1 is provided with 5 pieces, and the middle of the plug petal 1 is provided with a perforation 1-1 for the plug web 2 to pass through; when the upper end of the plug petal 1 is folded into a cylindrical tube shape, the lower end is opened into a fan-shaped horn, and vice versa.

[0040] Preferably, the plug petal 1 is made of glass fiber reinforced polyamide.

[0041] Preferably, as shown in Figure 10 , the plug web 2 is a solid circular ring, and the plug web 2 is made of toughened nylon.

[0042] Embodiment 2: The nylon plug is used in combination with a concrete sleeper 3 and a T-shaped bolt 4, the concrete sleeper 3 is provided with a sleeper nail hole 3-1 for installing the nylon plug, the T-shaped bolt 4 is inserted into the nylon plug from the sleeper nail hole 3-1, and the nylon plug is frictionally connected with the inner wall of the sleeper nail hole 3-1 under the expansion force of the T-shaped bolt 4.

[0043] Specifically, the sleeper nail hole 3-1 comprises a sleeper nail hole upper part and a sleeper nail hole lower part, the sleeper nail hole upper part is the same as the outer shape of the nylon plug, and the sleeper nail hole lower part is a square through hole.

[0044] Embodiment 3: The use of the nylon plug comprises the following steps:

[0045] 1) The nylon plug is installed in the tie pin hole 3-1 of the concrete sleeper 3, and epoxy resin glue is first injected into the tie pin hole 3-1;

[0046] 2) The cylindrical end of the nylon plug is inserted into the tie pin hole 3-1 from the top, and the nylon plug is positioned in place along with the opening and closing of the tie pin hole, as shown in Figures 11-12 ; the T-shaped bolt 4 is inserted into the nylon plug from the bottom of the tie pin hole 3-1 and is rotated by 45 degrees to be locked, as shown in Figures 13-14 ;

[0047] 3) After the epoxy resin glue is cured, the nylon plug is bonded with the concrete sleeper 3 as a whole, as shown in Figure 15 ;

[0048] 4) Under the expansion force of the T-shaped bolt 4, the frictional resistance between the outer wall of the nylon plug and the inner wall of the tie pin hole 3-1 is further enhanced, thereby ensuring good pullout resistance.

[0049] 5) After the assembly of the nylon plug, the T-shaped bolt 4 and the concrete sleeper 3 is completed, the concrete sleeper 3 is assembled and connected with the steel rail and the fastener through the T-shaped bolt 4, as shown in Figure 16 .

[0050] The utility model discloses a novel sleeper quick implanting type nylon plug, which replaces the pre-buried sleeve of the elastic undivided fastener type in the prior art, and through the expansion force of the nylon plug and the T-shaped bolt and the frictional resistance between the nylon plug and the tie pin hole, the purpose of fastening the elastic strip is achieved, and the problem of buckle off in the use of the existing pre-buried sleeve is solved, thereby increasing the difficulty of additional anchor modification operation for each work section.

[0051] It is apparent for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the utility model is defined by the appended claims instead of the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any figure reference in the claims should not be regarded as limiting the involved claims.

[0052] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A new type of fast implantable nylon plug for sleepers characterized in that: The invention relates to a nylon plug for concrete sleeper, which comprises a plug petal (1) and a plug connecting rib (2), wherein the plug petal (1) is saddle-shaped and symmetrically arranged, the plug connecting rib (2) is circular, the plug petal (1) is circumferentially arranged, the plug connecting rib (2) passes through the middle of the plug petal (1), and the plug petal (1) rotates around the plug connecting rib (2) to open and close the nylon plug.

2. The new and improved fast implantable nylon plug for sleepers as claimed in claim 1, wherein: The plug petal (1) is saddle-shaped and symmetrically arranged, the plug petal (1) is provided with five pieces, the middle of the plug petal (1) is provided with a through hole (1-1) for the plug connecting rib (2) to pass through, the upper end of the plug petal (1) is folded into a cylindrical tube, and the lower end of the plug petal (1) is opened into a fan-shaped horn.

3. The new and improved fast implantable nylon plug for sleepers as claimed in claim 1 wherein: The plug petal (1) is made of glass fiber reinforced polyamide.

4. The new and improved fast implantable nylon plug for railroad ties as claimed in claim 1, wherein: The plug connecting rib (2) is a solid circular ring, and the plug connecting rib (2) is made of toughened nylon.

5. The new and improved fast implantable nylon plug for sleepers as claimed in any one of the claims 1 to 4 wherein: The nylon plug is matched with a concrete sleeper (3) and a T-shaped bolt (4), the concrete sleeper (3) is provided with a sleeper nail hole (3-1) for installing the nylon plug, the T-shaped bolt (4) is inserted into the sleeper nail hole (3-1) and is sleeved into the nylon plug, and the nylon plug is frictionally connected with the inner wall of the sleeper nail hole (3-1) under the expansion force of the T-shaped bolt (4).

6. The new and improved fast implantable nylon plug for railroad ties as claimed in claim 5 wherein: The sleeper nail hole (3-1) comprises an upper sleeper nail hole and a lower sleeper nail hole, the upper sleeper nail hole is the same as the outer shape of the nylon plug, and the lower sleeper nail hole is a square through hole.

7. The new and improved fast implantable nylon plug for railroad ties as defined in claim 6, wherein: The concrete sleeper (3) is assembled and connected with a rail and a fastener through the T-shaped bolt (4).

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