Anti-corrosion protective shell applied to e-shaped elastic strip

Abstract

The utility model discloses an anti-corrosion protective shell applied to an e-shaped elastic strip, and belongs to the technical field of steel rail traffic accessories. According to the technical scheme, an upper protective shell and a lower protective shell are detachably connected, and a cavity used for wrapping an e-shaped elastic strip is formed in the connecting position; a plurality of through holes are formed in the upper protective shell; a first cavity is formed below the upper protective shell; bosses which are the same as the through holes in number and correspond to the through holes in position are arranged on the lower protective shell; a spherical positioning block is arranged on each boss; and a second cavity is arranged below the lower protective shell. The anti-corrosion protective shell applied to the e-shaped railway elastic strip has the beneficial effects that the anti-corrosion protective shell applied to the e-shaped railway elastic strip has an anti-corrosion function, and on the premise of meeting the original performance requirements of the elastic strip, the characteristic of preventing corrosion is added, so that the service life of a railway buckling and pressing piece can be prolonged, and the service life of the railway buckling and pressing piece can be prolonged. And the maintenance cost of railway accessories is reduced, and stable work of the railway accessories is ensured, so that stable operation of the railway can be better ensured, and the safety of railway transportation is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail transportation accessories, and in particular relates to an anti-corrosion protective shell applied to an E-type elastic bar. Background Art

[0002] Railway transportation is the main artery of the national economy, serving as the link between production, distribution, exchange, and consumption. It carries approximately 60% of my country's passenger traffic and over 70% of its freight traffic. Railways are a vital means of transportation that not only improves the material and cultural living standards of the people, meets their travel needs, but also strengthens national defense. With my country's railways experiencing rapid development and a continuous increase in daily train departures, ensuring the safety and smooth operation of railway transportation is crucial.

[0003] Without danger, there is safety; without defects, there is wholeness. Safety is the primary requirement for ensuring railway transportation. Railway transportation production is characterized by continuity, globality, dynamism, openness and all-weather operation. Therefore, only by ensuring the safety of railway transportation can we better improve the efficiency of railway transportation and protect the lifeline of railway transportation. In the railway fastener system, each type of railway fastener plays an irreplaceable role. E-type railway spring clips are suitable for connecting 50 and 60 kg / m rails with prestressed concrete sleepers, prestressed wide concrete sleepers and integral roadbeds in straight sections on standard gauge railway lines with a straight polar radius of R ≥ 300. Due to the good elasticity of Type III railway spring clips and the small pressure loss, they can better maintain the geometric shape of the track and have become the main fastener type for China's concrete sleeper lines. It can be seen that the role of E-type railway spring clips in railway safety is crucial. E-type railway spring clips are mainly used for clamping rails, requiring a certain pressure and clamping strength. However, in the actual installation process, the installation of E-type spring clips mainly relies on spring clip wrenches. The wrench is in close contact with the large arc part of the E-type railway spring clip and is subjected to large forces. Therefore, the anti-corrosion coating on the large arc part is easily damaged, exposing the metal inside. Long-term exposure to air and the erosion of severe weather can easily cause the spring clips to rust, thereby reducing the service life of the spring clips, increasing safety hazards, and increasing maintenance costs. Utility Model Content

[0004] In order to solve the problems existing in the above-mentioned prior art and effectively alleviate the problem of rust caused by damage to the elastic bar, the utility model proposes an anti-corrosion protective shell applied to the E-type elastic bar. The anti-corrosion protective shell effectively covers the elastic bar, reduces the impact wear suffered by the elastic bar, and newly adds the anti-corrosion property on the original basis.

[0005] The technical solution is as follows:

[0006] An anti-corrosion protective shell for an E-type spring clip, comprising:

[0007] The upper protective shell is detachably connected to the lower protective shell, and the connection forms a cavity for enclosing the E-shaped elastic clip;

[0008] The upper protective shell is provided with a plurality of through holes;

[0009] A first cavity is provided below the upper protective shell;

[0010] The lower protective shell is provided with bosses having the same number and corresponding positions as the through holes;

[0011] Each of the bosses is provided with a spherical positioning block;

[0012] A second cavity is provided below the lower protective shell.

[0013] Furthermore, the upper protective shell and the lower protective shell have the same thickness, and the thickness range of the two is 5 to 7 mm.

[0014] Furthermore, the cross-section formed by the connection between the upper protective shell and the lower protective shell is circular, and its diameter is 20.5 mm.

[0015] Furthermore, the upper protective shell and the lower protective shell are made of glass fiber reinforced nylon 6.

[0016] Furthermore, the number of the through holes and bosses is 4.

[0017] Furthermore, the diameter of the four bosses is 3 mm and the height is 8 mm.

[0018] Furthermore, the diameter of the spherical positioning block is 4 mm.

[0019] Furthermore, the boss and the spherical positioning block are integrally formed.

[0020] The beneficial effects of the utility model are:

[0021] The anti-corrosion protective shell applied to the E-type spring clip described in the utility model has an anti-corrosion function. The anti-corrosion protective shell of the E-type railway spring clip has an anti-corrosion function. On the premise of meeting the original performance requirements of the spring clip, it adds the characteristic of preventing rust. It can extend the service life of the railway buckling parts, reduce the cost of railway accessories maintenance, ensure the stable operation of the railway accessories, and thus better guarantee the smooth operation of the railway to ensure the safety of railway transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0023] Figure 1 This is a schematic diagram of the upper protective shell structure of the utility model Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the upper protective shell structure of the utility model Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the lower protective shell structure of the utility model Figure 1 ;

[0026] Figure 4 This is a schematic diagram of the lower protective shell structure of the utility model Figure 2 ;

[0027] Figure 5 This is a schematic diagram of the lower protective shell structure of the utility model Figure 3 ;

[0028] Figure 6 This is a schematic diagram of the effect after the upper and lower protective shells and E-type spring clips are assembled;

[0029] Description of the accompanying drawings: 1-upper protective shell, 11-through hole, 12-first cavity, 2-lower protective shell, 21-boss, 22-spherical positioning block, 23-second cavity, A-anti-corrosion protective shell applied to e-type spring clip, Be-type spring clip. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Figure 1-5 Further description of the anti-corrosion protective housing used for the e-type spring clip.

[0031] Example 1

[0032] An anti-corrosion protective shell for an E-type spring clip, comprising:

[0033] The upper protective shell 1 is detachably connected to the lower protective shell 2, forming a cavity for enclosing the E-shaped spring bar at the connection. The upper protective shell 1 is provided with a plurality of through holes 11. A first cavity 12 is provided below the upper protective shell 1. The lower protective shell 2 is provided with bosses 21, the same number as the through holes 11 and corresponding in position. Each boss 21 is provided with a spherical positioning block 22. A second cavity 23 is provided below the lower protective shell 2. The upper protective shell 1 and the lower protective shell 2 have the same thickness, ranging from 5 to 7 mm. The cross-section formed by the connection between the upper protective shell 1 and the lower protective shell 2 is circular, with a diameter of 20.5 mm. The upper protective shell 1 and the lower protective shell 2 are made of glass fiber reinforced nylon 6. There are four through holes 11 and four bosses 21. The four bosses 21 have a diameter of 3 mm and a height of 8 mm. The diameter of the spherical positioning block 22 is 4 mm. The bosses 21 and the spherical positioning block 22 are integrally formed.

[0034] Before installing the E-type rail clip, first assemble the upper and lower protective shells 1 and 2 before using the rail clip wrench. This effectively isolates the wrench from contact with the rail clip's insulation. The new E-type rail clip's rust-resistant protective shell effectively encases the rail clip, reducing impact wear and tear. Furthermore, it offers new corrosion protection, in addition to the existing features.

[0035] Example 2

[0036] This embodiment provides a new type of anti-corrosion protective shell for E-type spring bars. The protective shell is divided into two parts, an upper protective shell 1 and a lower protective shell 2. The thickness of the protective shell is 5 to 7 mm. The cross-section of each protective shell is semicircular, that is, each protective shell can cover half of the surface area of ​​the spring bar. The inner diameter of the protective shell is 20.5 mm. Because the E-type railway spring bar is made of hot-rolled spring round steel with a diameter of 20 mm, setting the inner diameter of the protective shell to 20.5 can more effectively cover the arc part of the spring bar. The material of the protective shell is glass fiber reinforced nylon 6 material because PA6 material has good dimensional stability, good thermal stability, strong wear resistance, high mechanical strength, and excellent chemical resistance.

[0037] The rust-resistant lower protective shell 2 is provided with four bosses 21 of equal height, with a diameter φ of 3mm and a height of 8mm. At the upper end of the boss 21, four spherical positioning blocks 22 integral with the boss 21 are provided, with a diameter of 4mm. After installation, the upper and lower protective shells 2 are tightly connected and not prone to loosening. The axis of the spherical positioning block 22 is located on the top plane of the φ3 boss. The rust-resistant upper protective shell 1 is provided with four through holes 11 with a hole diameter φ of 3.2mm. The position of the through hole 11 coincides with the position of the boss 21 in the lower protective shell 2, so that the upper protective shell 1 and the lower protective shell 2 fit tightly during assembly. At the same time, the direction of the boss 21 is parallel to the cross-sectional direction of the e-type elastic bar, so that the protective shell can be installed and disassembled more conveniently.

[0038] By simulating the installation experiment of the e-type railway spring clip, the longitudinal length of the contact part between the spring clip wrench and the insulation protective layer of the railway spring clip was measured to be 25 to 30 mm. Therefore, the straight length of the inner ends of the upper protective shell 1 and the lower protective shell 2 was set to 30 mm to ensure that the area of ​​the protective shell can be larger than the contact area of ​​the spring clip wrench.

[0039] The upper protective shell 1 and the lower protective shell 2 are injection molded in one step using a dedicated mold. The inner diameter of the protective shell undergoes a semi-finishing surface treatment after molding, and the smoothness of the inner diameters of the upper and lower protective shells is controlled at level 3.2. The machining marks can be slightly seen. After the inner protective shell and the spring bar are assembled, the insulating surface will not be scratched when subjected to force; the surface of the outer protective shell can be cleaned of burrs to achieve a rough and flat surface, which can increase the friction between the spring bar wrench and the outer protective shell, making it easier for operators to install the spring bar.

[0040] Before installing the E-type rail clip, assemble the upper and lower protective shells before using the rail clip wrench. This effectively isolates the wrench from contact with the rail clip's insulation. The new E-type rail clip's corrosion-resistant shell effectively encases the rail clip, reducing impact wear and tear. Furthermore, it offers corrosion protection, in addition to the existing protection.

[0041] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A corrosion-resistant protective shell for an E-type spring bar, characterized in that: include: An upper protective shell (1) is detachably connected to a lower protective shell (2), with a cavity formed at the connection for enclosing the E-shaped elastic bar; The upper protective shell (1) is provided with a plurality of through holes (11); A first cavity (12) is provided below the upper protective shell (1); The lower protective shell (2) is provided with bosses (21) having the same number as the through holes (11) and corresponding positions; Each of the bosses (21) is provided with a spherical positioning block (22); A second cavity (23) is provided below the lower protective shell (2).

2. The anti-corrosion protective housing for e-type spring bars according to claim 1, characterized in that: The upper protective shell (1) and the lower protective shell (2) have the same thickness, and the thickness range of the two is 5 to 7 mm.

3. The anti-corrosion protective housing for e-type spring bars according to claim 1, characterized in that: The cross section formed by the connection between the upper protective shell (1) and the lower protective shell (2) is circular, and its diameter is 20.5 mm.

4. The anti-corrosion protective housing for e-type spring bars according to claim 1, characterized in that: The upper protective shell (1) and the lower protective shell (2) are made of glass fiber reinforced nylon 6.

5. The anti-corrosion protective housing for e-type spring bars according to claim 1, characterized in that: The number of the through holes (11) and bosses (21) is four.

6. The anti-corrosion protective housing for E-type spring bars according to claim 5, characterized in that: The diameter of the four bosses (21) is 3 mm and the height is 8 mm.

7. The anti-corrosion protective housing for the e-type spring bar according to claim 6, characterized in that: The diameter of the spherical positioning block (22) is 4 mm.

8. The anti-corrosion protective housing for e-type spring bars according to claim 1, characterized in that: The boss (21) and the spherical positioning block (22) are integrally formed.

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