Iron base plate lower insulation buffer base plate for rail fastener

Abstract

The utility model discloses an iron backing plate lower insulation buffer backing plate for a track fastener, which comprises a backing plate, a protective sleeve and a top, the side surface of the backing plate is provided with a plurality of deformation grooves arranged up and down, the protective sleeve is arranged in a runway shape, the edge of the backing plate is provided with a bolt notch, the protective sleeve is inserted into the bolt notch, and the top of the protective sleeve is connected with the deformation grooves. The top heads are fixedly connected with the base plate, and the side faces of the top heads are arranged in a corrugated shape; the deformation grooves in the side face of the base plate reserve space for compression deformation of the base plate, it can be guaranteed that the edge of the base plate is not prone to excessive extension, the edge cracking problem is avoided, the inner wall of the bolt notch is supported and protected through the protective sleeve, the bolt notch cannot be rubbed when inserted into the bolt notch, and the protective sleeve supports the bolt notch so that excessive deformation of the bolt notch can be avoided; and the grooves enable all positions of the base plate to have deformation spaces, the buffering effect is good, and the phenomenon that the base plate cracks due to extrusion is avoided.

Description

Technical Field

[0001] This utility model relates to the field of subway fastener equipment technology, specifically an insulating buffer pad under the iron pad for track fasteners. Background Technology

[0002] The existing insulating buffer pads under the iron pads have low strength, short service life, and require a lot of maintenance work due to structural design reasons.

[0003] In related technologies, to solve the above problems, a solution for an insulating buffer pad under an iron pad for subway fasteners (publication number CN215629048U) is provided. This solution involves reinforcing the edges to prevent the insulating buffer pad from warping under pressure. The pad body is made of nylon and rubber, with a thickness controlled between 6mm and 12mm and a static stiffness controlled between 700kN / mm and 900kN / mm. This ensures that the coefficient of friction between the insulating buffer pad and the iron pad is not less than 0.5, guaranteeing that the fastener system does not slip.

[0004] However, the bolt slots on the pad body are prone to deformation when squeezed, and the bolt slots are prone to damage. When the pad body is compressed, the side of the pad body will bulge outward. The pressure of the passing train repeatedly presses the pad body, and cracks will appear on the side of the pad body. Utility Model Content

[0005] The purpose of this utility model is to provide an insulating buffer pad under the iron pad for track fasteners, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an insulating buffer pad under an iron pad for track fasteners, comprising a pad, wherein the side of the pad is provided with a plurality of deformation grooves arranged vertically, the deformation grooves providing deformation space when the side of the pad is compressed, thereby preventing cracking of the pad edge;

[0007] The protective sleeve is designed in the shape of a racetrack. The edge of the pad has a bolt groove. The protective sleeve is inserted into the bolt groove to maintain the shape of the bolt groove. When the buffer pad is squeezed, the bolt groove is prevented from deforming.

[0008] The top head is provided in several parts and fixedly connected to the pad plate. The side of the top head is corrugated. The top head supports and buffers the components above the pad plate, and the pad plate has a good buffering effect.

[0009] Furthermore, the upper end of the protective sleeve is provided with a limiting ring, which is flush with the pad. The limiting ring prevents the protective sleeve from moving downward and ensures that the protective sleeve stably supports the bolt slot.

[0010] Furthermore, the thickness of the pad and the depth of the bolt groove are 6-12mm, the static stiffness is 800kN / mm±100kN / mm, and the length of the protective sleeve is 4-8mm.

[0011] Furthermore, the side of the pad is surrounded by a protective ring, the height of which is half the thickness of the pad. This can limit excessive deformation of the pad, while also allowing the pad to deform.

[0012] Furthermore, the lower surface of the pad is provided with anti-slip texture, making it less likely to slip when the pad is laid. The surface of the pad is provided with several grooves, and the top head is smaller than the groove and located inside the groove. The deformation of the pad towards the groove can disperse the pressure on the pad.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) The deformation groove on the side of the pad provides space for the pad to deform under pressure, which can ensure that the edge of the pad is not easily overstretched and avoid the problem of edge cracking.

[0015] (2) The inner wall of the bolt slot is supported and protected by a protective sleeve. When the bolt is inserted into the bolt slot, it will not rub against the bolt slot. The protective sleeve supports the bolt slot to prevent excessive deformation of the bolt slot and prevent pressure damage to the bolt slot.

[0016] (3) The grooves provide deformation space in all parts of the pad, which not only provides good cushioning but also prevents the pad from cracking due to compression. The top end improves the cushioning capacity of the pad.

[0017] (4) The anti-slip texture on the bottom of the pad can prevent the pad from sliding and help limit the sliding of the track fastener. Attached Figure Description

[0018] Figure 1 This is a top view of the present invention;

[0019] Figure 2 This is a bottom view of the present invention;

[0020] Figure 3 This is a cross-sectional view of the present invention;

[0021] Figure 4 This is a schematic diagram of the connection between the bolt slot and the protective sleeve of this utility model.

[0022] In the diagram: 1. Pad; 2. Protective ring; 3. Limiting ring; 4. Top head; 5. Bolt slot; 6. Deformation groove; 7. Protective sleeve; 8. Groove; 9. Anti-slip texture. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example:

[0025] Please see Figure 1-4 This utility model provides a technical solution: an insulating buffer pad under an iron pad for track fasteners, including a pad 1. The side of the pad 1 is provided with a plurality of deformation grooves 6 arranged vertically. When the pad 1 is subjected to pressure, it is flattened along the deformation grooves 6, leaving space for the deformation of the pad 1, avoiding arbitrary deformation of the pad 1, and the edge of the pad 1 is not easy to crack due to pressure.

[0026] The protective sleeve 7 is arranged in the shape of a racetrack. The side of the pad 1 is provided with a bolt groove 5. The protective sleeve 7 is inserted into the bolt groove 5. The protective sleeve 7 supports and protects the inner wall of the bolt groove 5. When the pad 1 is deformed by pressure, the bolt groove 5 is supported and is not easily deformed, thus preventing damage to the bolt groove 5.

[0027] The top head 4 is provided in several parts and is fixedly connected to the pad 1. The side of the top head 4 is corrugated, which makes the top head 4 evenly compressed when subjected to pressure, thereby improving the buffering effect of the pad 1.

[0028] In this embodiment, as Figure 4 As shown, the upper end of the protective sleeve 7 is provided with a limiting ring 3. The limiting ring 3 is flush with the pad 1 to ensure that the limiting ring 3 will not affect the flatness of the pad 1. The limiting ring 3 can prevent the protective sleeve 7 from moving down and provide more stable protection for the bolt slot 5.

[0029] In this embodiment, the thickness of the pad 1 and the depth of the bolt slot 5 are 6-12mm, the length of the protective sleeve 7 is 4-8mm, the length of the protective sleeve 7 needs to be less than the depth of the bolt slot 5, the static stiffness of the pad 1 is 700kN / mm-900kN / mm, the pad 1 has high strength and stable support force.

[0030] In this embodiment, as Figure 3 and Figure 4 As shown, the protective ring 2 is surrounded by the side of the pad 1. The height of the protective ring 2 is half the thickness of the pad 1. The thickness of the protective ring 2 is 2-3.5mm. Both the pad 1 and the protective ring 2 are made of nylon and rubber, so that the coefficient of friction between the insulating buffer pad 1 and the iron pad is not less than 0.5, the friction force is large, and the fastening system will not slip.

[0031] In this embodiment, as Figure 2 As shown, the lower surface of the pad 1 is provided with anti-slip texture 9. Laying the pad 1 can prevent the pad 1 from sliding, and the fastener system can be installed stably.

[0032] In this embodiment, as Figure 3 As shown, the surface of the pad 1 is provided with several grooves 8. The top head 4 is smaller than the grooves 8 and is located inside the grooves 8. The grooves 8 provide deformation space in all parts of the pad 1, ensuring uniform deformation when the pad 1 is squeezed.

[0033] Specifically, during use, when installing pad 1, the anti-slip texture 9 ensures that pad 1 will not slide. Place the iron pad on pad 1, and the top head 4 and pad 1 support the iron pad 1. When the bolt passes through the bolt slot 5, the bolt slot 5 is protected by the protective sleeve 7 to prevent damage to the bolt slot 5. When pad 1 is squeezed, ensure that pad 1 and top head 4 provide stable support for the iron pad.

[0034] When the pad 1 is compressed, the groove 8 provides space for the deformation of the pad 1, and the deformation groove 6 provides space for the edge of the pad 1 to deform under pressure. The edge of the pad 1 is not easily damaged when it is compressed. The protective ring 2 surrounds the pad 1 to prevent the pad 1 from deforming significantly due to pressure, thus ensuring the stability of the pad 1 and providing stable support and cushioning.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An insulating buffer pad under an iron pad for rail fasteners, characterized in that, include: The pad (1) has several deformation grooves (6) arranged vertically on its side. The protective sleeve (7) is arranged in the shape of a racetrack. The pad (1) has a bolt groove (5) on its side. The protective sleeve (7) is inserted into the bolt groove (5). Top head (4), several top heads (4) are provided and fixedly connected to the pad plate (1), and the side of the top head (4) is corrugated.

2. The insulating buffer pad under the iron pad for track fasteners according to claim 1, characterized in that: The upper end of the protective sleeve (7) is provided with a limiting ring (3), which is flush with the pad (1).

3. The insulating buffer pad under the iron pad for track fasteners according to claim 1, characterized in that: The thickness of the pad (1) and the depth of the bolt groove (5) are 6-12mm, and the length of the protective sleeve (7) is 4-8mm.

4. An insulating buffer pad under an iron pad for a track fastener according to claim 1, characterized in that: The side of the pad (1) surrounds the protective ring (2), and the height of the protective ring (2) is half the thickness of the pad (1).

5. An insulating buffer pad under an iron pad for a track fastener according to claim 1, characterized in that: The lower surface of the pad (1) is provided with anti-slip texture (9).

6. An insulating buffer pad under an iron pad for a track fastener according to claim 1, characterized in that: The surface of the pad (1) is provided with a plurality of grooves (8), and the top head (4) is smaller than the grooves (8) and is located inside the grooves (8).

7. An insulating buffer pad under an iron pad for a track fastener according to claim 4, characterized in that: The thickness of the protective ring (2) is 2-3.5 mm.

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