Tramcar switch rail anti-jumping structure

Abstract

The utility model discloses a tramcar switch rail anti-jumping structure, which relates to the technical field of turnouts and comprises a switch rail, a switch rail seat and a limit plate, a switch rail groove is arranged on the upper side of the switch rail seat, the switch rail is slidably arranged in the switch rail groove, a U-shaped limit groove is arranged on the lower portion of the point end of the switch rail, the limit plate is slidably connected in the limit groove, and the limit plate is arranged in the limit groove. The side face of the limiting plate is integrally connected with a fixing block, and the fixing block is installed on the switch rail base through a pair of fixing bolts and a pair of elastic cylindrical pins. The limiting groove with the R fillet is directly formed in the lower portion of the point end of the switch rail, the limiting plate is arranged in the inwards-concave groove, in this way, the space of the switch rail groove at the position can be utilized to the maximum extent, and the fixing block and the limiting plate can be reliably installed and fixed through the pair of fixing bolts and the pair of elastic cylindrical pins; and the point end of the switch rail can be effectively limited to run out of a theoretical working area in the vertical direction through the limiting plate, potential safety hazards are reduced, and protection of the switch rail is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of turnouts, in particular to a tram point rail anti-jump structure. Background Art

[0002] The tram switch rail is an important part of the tram switch. In the tram switch, the switch rail mainly plays the role of guiding the tram to turn and change tracks. Therefore, when the switch is in use, the switch rail needs to be constantly moved back and forth.

[0003] When installing the switch rail, we can only fix the heel end of the switch rail. When the switch rail moves back and forth, the tip of the switch rail may run out of the theoretical working area in the vertical direction, causing the tram to hit the tip of the switch rail, damaging the switch rail, and even causing traffic accidents such as the tram overturning.

[0004] The utility model with application number CN201420697821.0 is a tram point rail anti-jump device designed by our company in the early stage. Its characteristics are: a boss is processed at the tip of the point rail, and then an anti-jump limit block is used in conjunction with a fixing bolt and an elastic cylindrical pin to press the boss to achieve anti-jump of the point rail.

[0005] However, due to the limited space between the tip rail and the tip rail seat at the tip, usually only one fixing bolt and one elastic cylindrical pin can be installed, so the structural reliability is low. Utility Model Content

[0006] The purpose of the utility model is to provide a tram point rail anti-jump structure to solve the above-mentioned defects caused by the prior art.

[0007] A tram point rail anti-jump structure includes a point rail, a point rail seat and a limit plate. The upper side of the point rail seat is provided with a point rail groove, the point rail is slidably arranged in the point rail groove, the lower part of the tip of the point rail is provided with a U-shaped limit groove, the limit plate is slidably connected to the limit groove, and the side of the limit plate is integrally connected with a fixed block, and the fixed block is installed on the point rail seat by a pair of fixing bolts and a pair of elastic cylindrical pins.

[0008] Preferably, the fixing block is provided with a pair of fixing holes, the pointed rail groove is provided with a pair of threaded holes below the pair of fixing holes, and the fixing bolts are installed between the threaded holes and the fixing holes.

[0009] Preferably, the fixing block is provided with a pair of positioning holes, the pointed rail groove is provided with a pair of pin holes correspondingly below the pair of positioning holes, and the elastic cylindrical pin is installed between the pin holes and the positioning holes.

[0010] Preferably, the pair of fixing bolts and the pair of elastic cylindrical pins are not distributed on a straight line.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] The present invention directly creates a limit groove with an R5 radius at the lower portion of the tip of the switch rail, and sets the limit plate in the concave groove. This maximizes the use of the space in the switch rail groove, and the pair of fixing bolts and the pair of elastic cylindrical pins allow the fixing block to be securely installed, thereby reliably fixing the limit plate. When the switch rail is moved, the limit plate integrally connected to the fixing block can effectively limit the tip of the switch rail from moving out of the theoretical working area in the vertical direction, reducing safety hazards and facilitating the protection of the switch rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0014] Figure 2 It is a schematic structural diagram of the utility model as a whole from a top view.

[0015] Figure 3 It is a structural schematic diagram of the point rail in the utility model.

[0016] Figure 4 It is a structural schematic diagram of the pointed rail seat in the utility model.

[0017] Figure 5 It is a structural schematic diagram of the fixing block and the limiting plate in the utility model.

[0018] in:

[0019] 11-point rail; 11a-limiting groove;

[0020] 12-point rail seat; 12a-point rail groove; 12b-threaded hole; 12c-pin hole;

[0021] 13-fixing block; 13a-fixing hole; 13b-positioning hole;

[0022] 14-limiting plate;

[0023] 15-Fixing bolt;

[0024] 16-Elastic cylindrical pin. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figures 1 to 5As shown, a tram point rail anti-jump structure includes a point rail 11, a point rail seat 12, and a limit plate 14. The upper side of the point rail seat 12 is provided with a point rail groove 12a, and the point rail 11 is slidably set in the point rail groove 12a. The lower part of the tip of the point rail 11 is provided with a U-shaped limit groove 11a, and the limit plate 14 is slidably connected to the limit groove 11a. The side of the limit plate 14 is integrally connected with a fixed block 13, and the fixed block 13 is installed on the point rail seat 12 by a pair of fixing bolts 15 and a pair of elastic cylindrical pins 16. The present application directly opens a limit groove 11a with an R5 radius at the lower part of the tip of the point rail 11, and sets the limit plate 14 in the concave groove 11a. In this way, the space of the point rail groove 12a can be maximized, and the fixing block 13 can be reliably installed by the pair of fixing bolts 15 and the pair of elastic cylindrical pins 16, thereby reliably fixing the limit plate 14.

[0027] In this embodiment, the fixing block 13 is provided with a pair of fixing holes 13a. The switch rail groove 12a is provided with a pair of threaded holes 12b below the fixing holes 13a. Fixing bolts 15 are installed between the threaded holes 12b and the fixing holes 13a. The fixing bolts 15 effectively secure the fixing block 13 and the stop plate 14 to the switch rail groove 12a of the switch rail seat 12.

[0028] In this embodiment, the fixing block 13 is provided with a pair of positioning holes 13b. The switch rail groove 12a is provided with a pair of pin holes 12c below these positioning holes 13b. Elastic cylindrical pins 16 are installed between the pin holes 12c and the positioning holes 13b. The pair of elastic cylindrical pins 16 effectively position the fixing block 13 and the stop plate 14 within the switch rail groove 12a of the switch rail seat 12.

[0029] In the present embodiment, the pair of fixing bolts 15 and the pair of elastic cylindrical pins 16 are not distributed in a straight line. By any one of the fixing bolts 15 and the pair of elastic cylindrical pins 16, the fixing block 13 and the limiting plate 14 can be positioned at three points, and the fixing is more reliable.

[0030] Installation and application of this tram point rail anti-jump structure:

[0031] First, clamp the limiting plate 14 into the limiting groove 11a at the tip of the point rail 11, then position the fixing block 13 in the point rail groove 12a of the point rail seat 12 through a pair of elastic cylindrical pins 16, and finally fix the fixing block 13 in the point rail groove 12a of the point rail seat 12 through a pair of fixing bolts 15.

[0032] When the point rail 11 is moved, the limiting plate 14 integrally connected to the fixing block 13 can effectively limit the tip of the point rail 11 from running out of the theoretical working area in the vertical direction, reducing safety hazards and facilitating the protection of the point rail 11.

[0033] Therefore, the embodiments disclosed above are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A tram point rail anti-jump structure, characterized by: The invention comprises a point rail (11), a point rail seat (12) and a limiting plate (14); a point rail groove (12a) is provided on the upper side of the point rail seat (12); the point rail (11) is slidably arranged in the point rail groove (12a); a U-shaped limiting groove (11a) is provided at the lower part of the tip of the point rail (11); the limiting plate (14) is slidably connected in the limiting groove (11a); a fixing block (13) is integrally connected to the side surface of the limiting plate (14); and the fixing block (13) is mounted on the point rail seat (12) through a pair of fixing bolts (15) and a pair of elastic cylindrical pins (16).

2. The tram point rail anti-jump structure according to claim 1, characterized in that: The fixing block (13) is provided with a pair of fixing holes (13a), the pointed rail groove (12a) is provided with a pair of threaded holes (12b) below the pair of fixing holes (13a), and the fixing bolts (15) are installed between the threaded holes (12b) and the fixing holes (13a).

3. The tram point rail anti-jump structure according to claim 1, characterized in that: The fixing block (13) is provided with a pair of positioning holes (13b), the pointed rail groove (12a) is provided with a pair of pin holes (12c) correspondingly below the pair of positioning holes (13b), and the elastic cylindrical pin (16) is installed between the pin hole (12c) and the positioning hole (13b).

4. A tram point rail anti-jump structure according to any one of claims 1 to 3, characterized in that: The pair of fixing bolts (15) and the pair of elastic cylindrical pins (16) are not distributed on a straight line.

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