Railway self-closing through line protection device

Abstract

The utility model discloses a railway self-closing through line protection device, relates to the technical field of railway power supply system protection, and aims to solve the technical problems that the diameter is too large, the stability of the bending angle is poor and the laying work is influenced due to the fact that a protection structure is additionally arranged at the bending position of a current cable. Limiting rings are fixedly arranged at the two ends of the protection shell, limiting clamping plates are fixedly arranged on the two sides of the outer wall of the limiting ring on one side, and butt joint plates attached to the opposite faces of the limiting clamping plates on the two sides are fixedly arranged on the side wall of the limiting ring on the other side. According to the utility model, the limiting clamping plates and the butting plates are fixedly arranged on the outer sides of the limiting rings at the two ends of the protective shell, so that the clamping blocks at the two sides of the butting plates can be combined with the clamping grooves in the side walls of the limiting clamping plates to position the bent angle of the cable when the protective shell is matched with the cable for bending, and the bending angle is kept stable; the device has the advantages that the bending angle positioning effect is improved while the bending position of the cable is protected, and the bending angle stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to railway power supply system protection technical field more specifically, relate to a railway self -closing through line protection device. BACKGROUND

[0002] The full name of self -closing line is automatic block power line. It is mainly used for power supply for railway automatic block signal equipment. Automatic block is a kind of railway signal technology, and railway line is divided into several block sections by track circuit and other equipment. When the train enters a block section, the signal equipment will automatically control the signal state of the subsequent section to ensure the safe interval of train operation. Self -closing line provides stable electric energy for these signal equipment, such as signal machine, track circuit, etc., to ensure the normal operation of signal system.

[0003] The cable used for laying railway self -closing through line needs to be bent during laying. When the bending radius of the cable during laying is too small, it exceeds the allowable bending degree of the cable, which can cause slight damage to the outer skin. With the passage of time, under the combined action of mechanical stress and environmental factors, the outer skin is prone to cracking. Therefore, a protection structure needs to be added at the bending position. However, the increase of the protection structure will cause the diameter of the bending part to increase, which will increase the rebound force after bending and make it difficult to maintain a stable bending angle, affecting the cable laying work. In view of this, we propose a railway self -closing through line protection device. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the shortcomings of prior art, adapting to the actual needs, providing a railway self -closing through line protection device to solve the technical problems that the diameter of the cable bending part is too large due to the increase of the protection structure, which affects the laying work.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a railway self -closing through line protection device, including protection shell, the both ends of protection shell are fixedly provided with limit ring, the outer wall of one side limit ring is fixedly provided with limit clamping plate on both sides, the side wall of the other side limit ring is fixedly provided with the butt joint plate that is opposite to the surface of both sides limit clamping plate and is pasted,

[0006] The side of both sides limit clamping plate opposite is provided with a plurality of position corresponding clamping groove, the both sides of the side end of butt joint plate are fixedly provided with the clamping block that is combined with clamping groove, and the movable gap is reserved between clamping block and clamping groove;

[0007] The side of the clamping groove away from butt joint plate side end is all set as inclined extrusion surface, and the side of the clamping block close to extrusion surface is set as the guide surface with the same inclination angle as extrusion surface.

[0008] The utility model discloses a fixing and setting limiting clamping plate and butt joint plate on the outside of the limiting ring of the both ends of the protective shell, and the clamping block on the both sides of the butt joint plate can be combined with the clamping groove on the side wall of the limiting clamping plate when the protective shell is bent with the cable, so that the angle of the bent cable can be positioned, the angle of the bent cable can be kept stable, the influence of the deviation of the bending angle on the laying work can be reduced during the laying process, and the flexibility of the structure cooperation can be enhanced through the cooperation of the plurality of clamping grooves and clamping blocks.

[0009] Preferably, the side end of the clamping block is fixed with a positioning plate abutting against the outside of the limiting clamping plate, and the side of the positioning plate away from the limiting clamping plate is provided with a V-shaped surface.

[0010] Preferably, the side of the butt joint plate away from each other is provided with a bending groove, the side end of the butt joint plate is fixed with a limiting plate abutting against the surface of the limiting clamping plate on both sides, and the butt joint plate is made of flexible material.

[0011] Preferably, the protective shell comprises an upper shell and a lower shell, and the middle part of the upper shell and the lower shell is provided with a contraction groove facilitating the bending of the protective shell.

[0012] Preferably, the side end of the upper shell and the lower shell is provided with a limiting groove connected with each other, and the groove width of the limiting groove is the same as the thickness of the limiting ring.

[0013] Preferably, an arc-shaped reinforcing plate is fixed between the limiting ring and the limiting clamping plate, and a deformation-preventing cavity facilitating the resetting of the limiting clamping plate is formed between the reinforcing plate and the limiting ring and the limiting clamping plate.

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

[0015] 1、The utility model discloses a fixing and setting limiting clamping plate and butt joint plate on the outside of the limiting ring of the both ends of the protective shell, and the clamping block on the both sides of the butt joint plate can be combined with the clamping groove on the side wall of the limiting clamping plate when the protective shell is bent with the cable, so that the angle of the bent cable can be positioned, the angle of the bent cable can be kept stable, the influence of the deviation of the bending angle on the laying work can be reduced during the laying process, and the flexibility of the structure cooperation can be enhanced through the cooperation of the plurality of clamping grooves and clamping blocks.

[0016] 2、The utility model discloses that the position of the butt joint plate can be clamped after the clamping block and the clamping groove are connected, and the position of the limiting clamping plate on both sides can be limited, so that the combined position of the limiting clamping plate and the butt joint plate keeps the state of abutment, the stability of the connection is further enhanced, and the connection strength is improved. DRAWINGS

[0017] Figure 1The whole structure schematic diagram of the utility model;

[0018] Figure 2 The utility model discloses a cut open structure schematic diagram;

[0019] Figure 3 For Figure 2 The structure enlarged schematic diagram of A portion in the middle;

[0020] Figure 4 The utility model discloses a kind of use state schematic diagram.

[0021] Mark explanation in drawing: 1, protective shell;101, upper shell;102, lower shell;103, retraction groove;104, limit slot;2, limit ring;3, limit clamping plate;301, clamping groove;302, extrusion surface;303, reinforcing plate;4, butt joint plate;401, bending groove;402, limit plate;5, clamping block;501, guide surface;6, positioning plate;601, V-shaped surface. DETAILED DESCRIPTION

[0022] As Figures 1 to 4 Illustrated, the utility model relates to a kind of railway self-closing through line protection device, including protective shell 1, the both ends of protective shell 1 are fixedly provided with limit ring 2, the outer wall both sides of one side limit ring 2 are fixedly provided with limit clamping plate 3, the side wall of the other side limit ring 2 is fixedly provided with butt joint plate 4 that is towards face with both sides limit clamping plate 3 pasting;The setting of protective shell 1 can protect cable bending part, so that when cable bending is excessive, can increase protection, not easy to contact with external environment, reduce the probability of damage caused by environmental influence, improve the quality of cable laying, the limit clamping plate 3 of the setting on both sides limit ring 2 can be positioned with butt joint plate 4 to the angle of cable bending, so that deviation is not prone to in the process of laying cable, reduce the influence to cable laying work.

[0023] The side of both sides limit clamping plate 3 towards face is all provided with several position corresponding clamping groove 301, the side end both sides of butt joint plate 4 are fixedly provided with the clamping block 5 that is combined with clamping groove 301, and there is play gap between clamping block 5 and clamping groove 301, the side face of the side end of clamping groove 301 away from butt joint plate 4 is all set as inclined extrusion surface 302, the side face of clamping block 5 close to extrusion surface 302 is set as guide surface 501 with the same inclination angle of extrusion surface 302;By clamping block 5 is clamped into clamping groove 301, the position of butt joint plate 4 and limit clamping plate 3 can be fixed, the setting of extrusion surface 302 and guide surface 501 can be when extruding protective shell 1 bending, it is simple for clamping block 5 between multiple clamping grooves 301, while the straight surface of the other side pasting of clamping block 5 and clamping groove 301 can play good abutment effect, keep the stability of position combination after connection, the play gap reserved can have the space of rebound for butt joint plate 4.

[0024] In the embodiment of the utility model, the side end of the clamping block 5 is fixedly provided with a positioning plate 6 abutting against the outer side of the limiting clamping plate 3, and the side of the positioning plate 6 away from the limiting clamping plate 3 is provided with a V-shaped surface 601; when the clamping block 5 is inserted into the clamping groove 301, the positioning plate 6 can protrude to the outside of the clamping groove 301, and then under the returning action of the clamping block 5, one side of the positioning plate 6 can abut against the outer side of the limiting clamping plate 3; through the cooperation of the positioning plate 6 and the butt joint plate 4, the position of the limiting clamping plate 3 can be limited, so that the limiting clamping plate 3 is not easy to be deflected to both sides, and the strength of the combination of the limiting clamping plate 3 and the butt joint plate 4 is improved.

[0025] In the embodiment of the utility model, the side of the butt joint plate 4 away from each other is provided with a bending groove 401, and the side end of the butt joint plate 4 is fixedly provided with a limiting plate 402 abutting against the surface of the limiting clamping plate 3 on both sides, and the butt joint plate 4 is made of flexible material; through the design of the bending groove 401, the flexibility of the bending of the butt joint plate 4 can be increased, so that when the cable is bent to different angles, the side end of the butt joint plate 4 can be bent to the position aligned with the limiting clamping plate 3, facilitating the butt joint operation, and the limiting plate 402 on both sides can position the combined position of the butt joint plate 4 and the limiting clamping plate 3, so that the deviation in the butt joint process is not easy to occur, and the operation is convenient.

[0026] In the embodiment of the utility model, the protection shell 1 comprises an upper shell 101 and a lower shell 102, and the middle positions of the upper shell 101 and the lower shell 102 are provided with a contraction groove 103 facilitating the bending of the protection shell 1; through cooperation, the part facilitating the bending of the cable is wrapped inside, so that the protection effect is achieved, and the design of the contraction groove 103 can increase the bending flexibility of the protection shell 1 and reduce the resistance of the cable bending.

[0027] In the embodiment of the utility model, the side end positions of the upper shell 101 and the lower shell 102 are provided with a limiting groove 104 connected, and the groove width of the limiting groove 104 is the same as the thickness of the limiting ring 2; through the design of the limiting groove 104, the installation position of the limiting ring 2 can be positioned, and the correspondence of the setting positions of the limiting clamping plate 3 and the butt joint plate 4 is maintained.

[0028] In the embodiment of the utility model, the limiting ring 2 and the limiting clamping plate 3 are fixedly provided with an arc-shaped reinforcing plate 303, and the reinforcing plate 303 and the limiting ring 2 and the limiting clamping plate 3 form an anti-deformation cavity facilitating the resetting of the limiting clamping plate 3; through the design of the reinforcing plate 303, the strength between the connecting end of the limiting ring 2 and the limiting clamping plate 3 can be improved, the deformation caused by the extrusion of the clamping block 5 is not easy to occur, the fixing property of the connecting position is maintained, and the connecting strength is also strengthened.

[0029] Working principle: the embodiment provides a railway self-closing through line protection device, when the cable needs to be bent and adjusted during laying, the upper shell 101 and the lower shell 102 can be wrapped outside the cable, then the limiting ring 2 is fixed in the limiting groove 104 at both ends of the protection shell 1, the limiting ring 2 is butt-jointed at both ends through welding, so that the limiting clamp plate 3 and the butt plate 4 can be fixed outside the protection shell 1, then the protection shell 1 can be bent synchronously when the cable is bent, the resistance of the protection shell 1 to bending can be reduced through the setting of the contraction groove 103, the toughness is improved, so that the cable can be bent to a suitable laying angle, the side end of the butt plate 4 is inserted between the limiting clamp plates 3 on both sides during the bending process, the clamping block 5 can be moved to extrude the limiting clamp plates 3 on both sides through the change of the bending angle, so that the opening of the limiting clamp plates 3 on both sides is widened, when the clamping block 5 moves to the position of the clamping groove 301, the clamping block 5 can be automatically clamped through the elastic force of the limiting clamp plate 3, so that the position of the butt plate 4 and the limiting clamp plate 3 can be limited, so that the bending angle of the cable can be fixed, and after the clamping block 5 is clamped into the clamping groove 301, the positioning plate 6 can be moved out of the opening of the clamping groove 301, then the butt plate 4 is moved backward under the elastic force of the protection shell 1, so that one side of the positioning plate 6 abuts against the side surface of the limiting clamp plate 3, so that the position of the limiting clamp plate 3 is fixed, so that the fixing property of the position of the butt plate 4 can be improved without extruding the protection shell 1 to bend, the stability of the bending angle of the cable can be improved through the cooperation of the structure, the laying work is facilitated, and the use is convenient.

[0030] The embodiments of the utility model disclose the better embodiment, but not limited to this, the ordinary skill of the art, the person, the spirit of the utility model is appreciated to the above-mentioned embodiment very easily, and different extension and change are made, but as long as not departing from the spirit of the utility model, all are in the protection range of the utility model.

Claims

1. A railway self-closing through-line protection device, characterized in that, Including the protection shell (1), both ends of the protection shell (1) are fixedly provided with a limiting ring (2), the outer wall of one side of the limiting ring (2) is fixedly provided with a limiting clamping plate (3) on both sides, and the side wall of the other side of the limiting ring (2) is fixedly provided with a butt plate (4) which is attached to the opposite surface of the limiting clamping plate (3) on both sides; The side of the limiting clamping plate (3) on both sides is provided with a plurality of position corresponding clamping grooves (301), the side end of the butt plate (4) is fixedly provided with a clamping block (5) combined with the clamping groove (301), and the clamping block (5) and the clamping groove (301) are provided with a movable gap; The side of the clamping groove (301) away from the side end of the butt plate (4) is provided with an inclined extrusion surface (302), and the side of the clamping block (5) close to the extrusion surface (302) is provided with a guide surface (501) with the same inclination angle as the extrusion surface (302).

2. The railway self-closing through line protection device according to claim 1, characterized in that, The side end of the clamping block (5) is fixedly provided with a positioning plate (6) abutting against the outer side of the limiting clamping plate (3), and the side of the positioning plate (6) away from the limiting clamping plate (3) is provided with a V-shaped surface (601).

3. The railway self-closing through line protection device according to claim 2, characterized in that, The side of the butt plate (4) away from each other is provided with a bending groove (401), the side end of the butt plate (4) is fixedly provided with a limiting plate (402) attached to the surface of the limiting clamping plate (3) on both sides, and the butt plate (4) is made of flexible material.

4. The railway self-closing through line protection device of claim 1, wherein, The protection shell (1) comprises an upper shell (101) and a lower shell (102), and the middle part of the upper shell (101) and the lower shell (102) is provided with a contraction groove (103) which is easy to bend the protection shell (1).

5. The railway self-closing through line protection device of claim 4, wherein, The side end of the upper shell (101) and the lower shell (102) is provided with a limiting groove (104) connected, and the groove width of the limiting groove (104) is the same as the thickness of the limiting ring (2).

6. The railway self-closing through line protection device of claim 1, wherein, The limiting ring (2) and the limiting clamping plate (3) are fixedly provided with an arc-shaped reinforcing plate (303), and the reinforcing plate (303) and the limiting ring (2) and the limiting clamping plate (3) form an anti-deformation cavity which is easy to reset the limiting clamping plate (3).

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