Displacement compensation rail transit connecting piece rubber sheath structure

Abstract

The utility model discloses a displacement compensation rail transit connecting piece rubber sheath structure which comprises a rubber sheath body, a plurality of bolt holes are formed in the rubber sheath body, a buffering cushion is fixedly arranged on the surface of the rubber sheath body, and the rubber sheath body and the buffering cushion each comprise an outer rubber layer and an inner rubber layer from outside to inside. A plurality of drainage grooves are formed in the outer rubber layer of the rubber sheath body and the outer rubber layer of the buffer pad, and a plurality of convex balls are fixedly arranged on the outer rubber layer of the rubber sheath body. The rubber sheath is composed of the outer rubber layer and the inner rubber layer, the inner rubber layer is formed by alternately overlapping the multiple layers of rubber and the fiber fabric, the mechanical strength and rigidity of the rubber sheath can be improved so as to bear the pressure and multi-direction displacement of the track, the outer rubber layer is made of one or more of silicon rubber or fluororubber, and therefore the rubber sheath is not prone to falling off. The cable can resist erosion of external environments such as ultraviolet rays, rainwater or mechanical abrasion, namely, the rubber sheath can be prevented from being quickly abraded, corroded and aged, replacement is reduced, and therefore the use cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to rubber sheath technical field, concretely is a kind of compensation displacement rail transit connecting piece rubber sheath structure. BACKGROUND

[0002] The track in rail transit is laid in sections, and the steel rails need to be connected for use. The current steel rail connection method is fishplate connection technology. Fishplate (rail joint clamping plate) is commonly known as track clamping plate, which plays a connecting role at the rail joint. When the train is running, the vehicle will generate a huge pressure and transmit it to the track, which will produce displacement at the rail joint. In addition, the track will expand when heated and contract when cooled. Therefore, a compensation displacement rail transit connecting piece is needed for connection, and a compensation displacement rail transit connecting piece rubber sheath is needed for installation, which is mainly used to absorb the stress generated by the expansion and contraction of the track due to thermal expansion and contraction, vibration or displacement.

[0003] The compensation displacement rail transit connecting piece rubber sheath in the prior art is a rubber pad located between the fishplate and the track, which only absorbs the stress generated by the expansion and contraction of the track due to thermal expansion and contraction, vibration or displacement. After long-term use, it is easy to wear, corrode and age, so it needs to be replaced frequently, which is very cumbersome and has high use cost. SUMMARY

[0004] The utility model aims to provide a kind of compensation displacement rail transit connecting piece rubber sheath structure to solve the problems raised in the above background.

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

[0006] A compensation displacement rail transit connecting piece rubber sheath structure includes a rubber sheath body, the rubber sheath body is provided with a plurality of bolt holes, the surface of the rubber sheath body is fixedly provided with a buffer pad, the rubber sheath body and the buffer pad both include an outer rubber layer and an inner rubber layer from outside to inside.

[0007] A plurality of drainage grooves are formed on the outer rubber layer of the rubber sheath body and the buffer pad, and a plurality of convex balls are fixedly arranged on the outer rubber layer of the rubber sheath body.

[0008] Preferably, the upper and lower parts of the rubber sheath body are respectively an upper arc surface and a lower arc surface, the lowest point of the upper arc surface is in the same plane as the vertex of the convex ball, and the highest point of the lower arc surface is in the same plane as the bottom end of the convex ball.

[0009] Preferably, the drainage grooves are divided into horizontal grooves and vertical grooves, and the horizontal grooves and the vertical grooves intersect.

[0010] Preferably, the outer rubber layer is made of one or more of silicone rubber or fluororubber, and the inner rubber layer is made of multiple layers of rubber and fiber fabric alternately stacked.

[0011] Preferably, the transverse water channel is located above the lower arc surface, and the longitudinal water channel on the rubber sheath body is opened from below the upper arc surface to below the lower arc surface, and the longitudinal water channel on the buffer pad penetrates through the buffer pad.

[0012] Preferably, the number of transverse water channels on the rubber sheath body is at least one and at most four, the number of longitudinal water channels on the rubber sheath body is twice the number of transverse water channels, the number of transverse water channels on the buffer pad is at least one and at most three, and the number of longitudinal water channels on the buffer pad is one.

[0013] Preferably, when the number of transverse water channels on the rubber sheath body is three, the lowermost transverse water channel is located on the lower arc surface.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. The compensation displacement rail transit connecting piece rubber sheath is composed of an outer rubber layer and an inner rubber layer, the inner rubber layer is made of multiple layers of rubber and fiber fabric alternately stacked, the mechanical strength and rigidity of the rubber sheath can be improved to bear the pressure and multidirectional displacement of the rail, the outer rubber layer is made of one or more of silicone rubber or fluororubber, can resist the erosion of external environment such as ultraviolet rays, rain or mechanical wear, can prevent the rubber sheath from being quickly abraded, corroded and aged, reduces replacement, thereby reducing use cost.

[0016] 2. The compensation displacement rail transit connecting piece rubber sheath is provided with a drainage channel on the outer rubber layer, rainwater between the rubber protective sleeve and the rail can be discharged in time and quickly, rainwater erosion of the rubber protective sleeve is prevented, dryness is maintained and the speed of rail rusting can be slowed down, a plurality of convex balls are arranged on the outer rubber layer of the rubber sheath body, the gap between the rubber sheath and the rail can be further expanded, drainage is further accelerated, and the rubber sheath is further prevented from being eroded by rainwater.

[0017] 3. The compensation displacement rail transit connecting piece rubber sheath is vertically provided with a buffer pad on the rubber sheath body, the buffer pad is placed in the gap between two rail connecting places, can absorb the stress generated by thermal expansion and contraction, vibration or displacement of the rail, reduces resonance and noise. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structure schematic view of the utility model installed on the rail.

[0019] Figure 2 The side view structure schematic diagram of the utility model is installed on the track;

[0020] Figure 3 The Figure 2 The enlarged structure schematic diagram of A area in the middle;

[0021] Figure 4 The three-dimensional structure schematic diagram of the utility model;

[0022] Figure 5 The formal structure schematic diagram of the utility model;

[0023] Figure 6 The rubber sheath body sectional structure schematic diagram of the utility model;

[0024] Figure 7 The buffer pad sectional structure schematic diagram of the utility model.

[0025] In the figure: 1, rubber sheath body; 2, bolt hole; 3, buffer pad; 4, drainage groove; 5, convex ball; 6, upper arc surface; 7, lower arc surface; 8, track; 9, fishplate; 10, bolt; 101, outer rubber layer; 102, inner rubber layer; 401, transverse water tank; 402, longitudinal water tank. DETAILED DESCRIPTION

[0026] 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 labor fall within the protection scope of the utility model.

[0027] Please refer to Figures 1-7 The utility model provides a technical scheme:

[0028] Embodiment one:

[0029] A kind of compensation displacement rail transit connecting piece rubber sheath structure, including rubber sheath body 1, rubber sheath body 1 is equipped with several bolt holes 2, when two fishplates 9 connect two tracks 8, rubber sheath body 1 is placed between track 8 and fishplate 9, buffer pad 3 is placed between two tracks 8, then the fishplate 9 of track 8 two sides is installed by bolt 10, to connect two tracks 8, rubber sheath is clamped between track 8 and fishplate 9 at this time, such that rubber sheath is not easy to have larger displacement or fall off, and rubber sheath has ductility, can small distance multidirectional ductility.

[0030] The surface of the rubber sheath body 1 is fixedly provided with a buffer pad 3, the buffer pad 3 is placed at the gap between the two tracks 8, and the gap between the two tracks 8 can be filled. When the temperature decreases, the track 8 shrinks when it is cold, the gap between the two tracks 8 expands, and the buffer pad 3 reduces the stress and restores to its original state, and can still fill the gap between the two tracks 8. When the temperature rises, the track 8 expands when it is heated, the gap between the two tracks 8 narrows, and the buffer pad 3 in the middle is squeezed and thinned, so the setting of the buffer pad 3 can fill the gap between the two tracks 8, reduce the vibration when the rail car runs between the two tracks 8, and prevent resonance between the two tracks 8. In addition, it can absorb noise without affecting the thermal expansion and contraction of the track 8.

[0031] The rubber sheath body 1 and the buffer pad 3 each include an outer rubber layer 101 and an inner rubber layer 102 from outside to inside. The outer rubber layer 101 is made of one or more of silicone rubber or fluororubber. Silicone rubber is an elastomer material with good insulation, high temperature resistance, wear resistance, aging resistance, corrosion resistance. Fluororubber is an elastic material with high temperature resistance, wear resistance, oil resistance, acid resistance, alkali resistance, oxidation resistance, air tightness and impermeability. The outer rubber layer 101 made of one or more of silicone rubber or fluororubber can resist external environmental erosion such as ultraviolet light, rain or mechanical wear, thereby preventing the rubber sheath from being quickly worn, corroded and aged. The inner rubber layer 102 is made of multiple layers of rubber and fiber fabric alternately stacked, which can improve the mechanical strength and rigidity of the rubber sheath to withstand the pressure and multidirectional displacement of the track 8, so that the rubber sheath is not easily damaged.

[0032] The upper and lower parts of the rubber sheath body 1 are respectively an upper arc surface 6 and a lower arc surface 7. The lowest point of the upper arc surface 6 is in the same plane as the vertex of the convex ball 5, and the highest point of the lower arc surface 7 is in the same plane as the bottom end of the convex ball 5. The upper arc surface 6 is provided with a convex structure, and when the track 8 and the fishplate 9 clamp the rubber sheath body 1, the convex part of the upper arc surface 6 is in close contact with the surface of the track 8, which can prevent rainwater from entering between the rubber sheath body 1 and the track 8 from above, thereby reducing the possibility of erosion and corrosion of the rubber sheath.

[0033] Example two:

[0034] The outer rubber layer 101 of the rubber sheath body 1 and the buffer pad 3 is provided with a plurality of drainage grooves 4. The drainage grooves 4 are divided into horizontal grooves 401 and vertical grooves 402, and the horizontal grooves 401 and the vertical grooves 402 intersect. The horizontal grooves 401 and the vertical grooves 402 are located below the upper arc surface 6, and the horizontal grooves 401 are located above the lower arc surface 7. The vertical grooves 402 on the rubber sheath body 1 are provided from below the upper arc surface 6 to below the lower arc surface 7, and the vertical grooves 402 on the buffer pad 3 completely penetrate the buffer pad 3.

[0035] The number of the transverse water grooves 401 on the rubber sheath body 1 is at least one and at most four, the number of the longitudinal water grooves 402 on the rubber sheath body 1 is twice the number of the transverse water grooves 401, the number of the transverse water grooves 401 on the buffer pad 3 is at least one and at most three, the number of the longitudinal water grooves 402 on the buffer pad 3 is one, when the number of the transverse water grooves 401 on the rubber sheath body 1 is three, the lowermost transverse water groove 401 is located on the lower arc surface 7, the transverse water grooves 401 can concentrate the rainwater between the rubber sheath and the track 8 together, and then the rainwater is discharged through the longitudinal water grooves 402, so that the rainwater can be quickly discharged, the rainwater is prevented from staying on the rubber sheath for a long time, and the erosion and corrosion of the rubber sheath are reduced.

[0036] The outer rubber layer 101 of the rubber sheath body 1 is fixedly provided with a plurality of convex balls 5, the convex balls 5 can reduce the contact surface between the rubber sheath body 1 and the track 8, so that the rainwater is more conveniently discharged from the drainage groove 4, and the convex balls 5 are also made of one or more of silicone rubber or fluororubber, and also have the characteristics of wear resistance, corrosion resistance and aging resistance.

[0037] Working principle: first, the two rubber sheaths are respectively placed on the two sides of the two tracks 8, the two buffer pads 3 are placed in the gap between the two track 8 connecting portions, then the two tracks 8 are connected through the two fish plates 9 and the plurality of bolts 10, after the connection is completed, the convex part of the upper arc surface 6 on the rubber sheath body 1 is tightly combined with the side wall of the track 8, so that the rainwater is not easy to penetrate, and the convex ball 5 is also tightly combined with the side wall of the track 8, even if a small amount of rainwater penetrates, the rainwater can also be quickly discharged through the gap between the rubber sheath body 1 and the track 8 and the drainage groove 4.

[0038] The two buffer pads 3 are placed in the gap between the two tracks 8, can fill the gap between the two tracks 8, when the temperature decreases, the track 8 shrinks, the gap between the two tracks 8 expands, and the buffer pad 3 reduces the stress and restores to the original state, still can fill the gap between the two tracks 8, when the temperature increases, the track 8 expands, the gap between the two tracks 8 narrows, and the buffer pad 3 is squeezed and thinned, the buffer pad 3 is squeezed and enlarged, and the drainage groove 4 provided on the buffer pad 3 can quickly discharge water from the buffer pad 3.

[0039] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A compensation displacement rail transit connecting piece rubber sheath structure, comprising a rubber sheath body (1), characterized in that: The rubber sheath body (1) is provided with a plurality of bolt holes (2), and the surface of the rubber sheath body (1) is fixedly provided with a buffer pad (3), and the rubber sheath body (1) and the buffer pad (3) both comprise an outer rubber layer (101) and an inner rubber layer (102) from outside to inside. A plurality of drainage grooves (4) are formed in the outer rubber layer (101) of the rubber sheath body (1) and the buffer pad (3), and a plurality of convex balls (5) are fixedly arranged on the outer rubber layer (101) of the rubber sheath body (1).

2. The rubber jacket structure of the displacement rail transit connecting piece according to claim 1, characterized in that: The upper and lower parts of the rubber sheath body (1) are respectively provided with an upper arc surface (6) and a lower arc surface (7), the lowest point of the upper arc surface (6) is in the same plane as the vertex of the convex ball (5), and the highest point of the lower arc surface (7) is in the same plane as the bottom end of the convex ball (5).

3. The rubber jacket structure of the displacement rail transit connecting piece according to claim 1, characterized in that: The drainage grooves (4) are divided into horizontal grooves (401) and longitudinal grooves (402), and the horizontal grooves (401) and the longitudinal grooves (402) are intersected.

4. The rubber jacket structure of the displacement rail transit connecting piece according to claim 3, characterized in that: The horizontal grooves (401) and the longitudinal grooves (402) are located below the upper arc surface (6), the horizontal grooves (401) are located above the lower arc surface (7), the longitudinal grooves (402) on the rubber sheath body (1) are formed from below the upper arc surface (6) to below the lower arc surface (7), and the longitudinal grooves (402) on the buffer pad (3) completely penetrate the buffer pad (3).

5. The rubber jacket structure of the displacement rail transit connecting piece according to claim 4, characterized in that: The number of the horizontal grooves (401) on the rubber sheath body (1) is at least one and at most four, the number of the longitudinal grooves (402) on the rubber sheath body (1) is twice the number of the horizontal grooves (401), the number of the horizontal grooves (401) on the buffer pad (3) is at least one and at most three, and the number of the longitudinal grooves (402) on the buffer pad (3) is one.

6. The rubber jacket structure of the displacement rail transit connecting piece according to claim 5, characterized in that: When the number of the horizontal grooves (401) on the rubber sheath body (1) is three, the lowermost horizontal groove (401) is located on the lower arc surface (7).

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