Protective device specially designed for railway communication transmission line

Abstract

The invention relates to the technical field of railway communication cable protection, and discloses a protective device specially designed for a railway communication transmission line, the protective device comprises a mounting plate, a protective module, a buffer module and a clamping and fixing module, the protective module comprises a protective cover, and the protective cover is rotatably connected to the front surface of the mounting plate through a hinge block; the buffer module comprises a limiting frame, a sliding plate and spring shock absorbers, the sliding plate is slidably connected to the interior of the limiting frame, the spring shock absorbers are symmetrically installed on the two sides of the sliding plate, the clamping and fixing module comprises a fixed clamping plate, a quick release part, a threaded rotary knob and a clamping part, and the fixed clamping plate is fixedly connected to the outer side of the sliding plate. According to the protection device specially designed for the railway communication transmission line, cable protection under bridge displacement is achieved through the buffer module, rapid adaptive disassembly and assembly of cables of multiple specifications are completed by means of the clamping and fixing module, and the protection device is simple in structure, convenient to use and high in practicability. Omnibearing closed protection is formed by means of the protection module.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of railway communication cable protection, more particularly, it relates to a protection device specially designed for railway communication transmission lines. BACKGROUND

[0002] The protection device specially designed for railway communication transmission lines is a special protection equipment in the field of railway communication system operation and maintenance, mainly applied to the protection of communication transmission lines in special layout scenes such as the outer side of railway bridges and along the tracks, and the core function is to fix, buffer and anti-abrasion protect the railway communication transmission lines to ensure the communication continuity of the transmission lines under complex working conditions. The device needs to adapt to the special operating environment of the railway line, not only to resist the vibration generated by the train passing, the wind, sand, rain and snow erosion along the line, but also to cope with the structural displacement of railway bridges and tracks due to temperature difference and load. It is the core supporting facility to maintain the stability of key links such as railway dispatching communication and train safety communication, and is directly related to the overall safety and efficient operation of the railway transportation system.

[0003] However, the protection and fixing method of the traditional railway communication transmission line has obvious defects, which is difficult to adapt to the protection requirements of displacement working conditions such as railway bridge expansion joints. When the existing railway communication transmission line is laid on the outer side of the bridge, a rigid fixing piece is usually used to directly lock the cable on the bridge member, and no buffer adjustment structure is designed for the relative movement of the plate blocks of the bridge expansion joint. When the bridge produces expansion displacement due to temperature difference and load, the cable will be tightened or relaxed with the movement of the plate blocks, and the rigid fixed fixing piece will continuously rub with the outer surface of the cable, which is easy to cause damage to the cable sheath and internal core wire under long-term action, and even cause communication signal interruption in severe cases. At the same time, the specification of the traditional fixed protection structure is relatively fixed, which cannot flexibly adapt to communication transmission lines of different diameters and models, has poor universality, and only has basic fixing function, lacks targeted anti-abrasion and anti-stretching protection design, and the overall protection effect is not good, which is difficult to form all-round protection for the cable, and an special device with buffer adjustment, multi-model adaptation and high-efficiency protection ability is needed to solve the above problems. SUMMARY

[0004] (I) Technical problems to be solved In view of the above situation, in order to overcome the defects of the prior art, the present application provides a protection device specially designed for railway communication transmission lines, which aims to solve the problems in the background art.

[0005] (II) Technical scheme In order to achieve the above object, the present application is realized by the following technical scheme: A protective device specially designed for railway communication transmission line, comprising a mounting plate, a protection module, a buffer module and a clamping and fixing module, characterized in that: the protection module comprises a protective cover, the protective cover is rotatably connected to the front of the mounting plate through a hinge block, the two sides of the protective cover are provided with telescopic sections, and the end of the telescopic section is provided with a contraction section; the buffer module comprises a limiting frame, a sliding plate and a spring shock absorber, the limiting frame is installed on the front of the mounting plate and located inside the protective cover, the sliding plate is slidably connected to the inside of the limiting frame, and the spring shock absorber is symmetrically installed on the two sides of the sliding plate; the clamping and fixing module comprises a fixed clamping plate, a quick release piece, a threaded knob and a clamping piece, the fixed clamping plate is fixedly connected to the outside of the sliding plate, a clamping groove is formed in the outer surface of the fixed clamping plate, the quick release piece is rotatably connected to the inner side wall of the fixed clamping plate on one side of the clamping groove through a shaft rod, the threaded knob is threadedly connected to the inner side wall of the quick release piece, and the clamping piece is rotatably connected to the end of the threaded knob.

[0006] The present application further provides that the protective cover is provided with two and is symmetrically arranged up and down, and the outer surface of the protective cover is fixedly connected with a through hole for hooking a lock body.

[0007] The present application further provides that the protection module and the clamping and fixing module are each provided with two groups and are symmetrically arranged left and right.

[0008] The present application further provides that the outer surface of the middle part of the fixed clamping plate is fixedly connected with a sleeve, and the sleeve is sleeved on the outer surface of the limiting frame.

[0009] The present application further provides that the inner side wall of the clamping groove is fixedly connected with a first silica gel pad, the clamping groove is provided with a plurality of and is uniformly distributed in a ring array mode, and the clamping piece is fixedly connected with a second silica gel pad on the side close to the first silica gel pad.

[0010] The present application further provides that the inner side wall of the fixed clamping plate is provided with a limiting module on the outside of the clamping groove, the limiting module comprises a limiting pin, a lever and a spring, a sliding groove is formed in the inner side wall of the fixed clamping plate, the limiting pin is slidably connected to the inner side wall of the sliding groove, a notch is formed in the outer surface of the fixed clamping plate, and the lever is located in the notch and is fixedly installed on the outer surface of the limiting pin at one end.

[0011] The present application further provides that a limiting groove is formed in the outer surface of the quick release piece, and the end of the limiting pin is clamped in the limiting groove.

[0012] (Three) beneficial effects Compared with the prior art, the present application provides a protective device specially designed for railway communication transmission line, which has the following beneficial effects: 1. The protective device specially designed for railway communication transmission lines has the effect of buffering adjustment through the setting of the buffering module, can absorb the impact force generated by the expansion displacement of the bridge in the process of use, avoids the continuous friction between the cable and the fixing part, plays the role of protecting the cable sheath and the internal core wire, and achieves the purpose of preventing the interruption of communication signals.

[0013] 2. The protective device specially designed for railway communication transmission lines has the effects of quick disassembly and assembly and multi-cable adaptation through the setting of the quick release part and the limiting module, can quickly open or close the quick release part to adapt to single or multiple cables of different diameters in the process of use, reduces the wear of the cable through the first and second silica gel pads, plays the role of improving the universality of the device and protecting the cable in all directions, and achieves the purpose of enhancing the overall protection effect.

[0014] 3. The protective device specially designed for railway communication transmission lines has the effect of all-round protection through the setting of the protection module, can wrap the cable through the upper and lower symmetrical protective covers in the process of use, the expansion section can deform according to the state of the fixed cable, the contraction section can wrap multiple cables together, reduce the gap between the cable and the protection module, the through hole hooks the lock body to lock the protective cover, and at the same time resists wind, sand, rain and snow erosion and external impact, thereby playing the role of forming all-round protection for the cable, and achieving the purposes of improving the protection effect and ensuring the long-term stable operation of the communication transmission line. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic view of the three-dimensional structure of the present application; Figure 2 is a schematic view of the three-dimensional structure of the present application in the open state; Figure 3 is a schematic view of the three-dimensional structure of the protective cover of the present application in the open state; Figure 4 is a schematic view of the three-dimensional structure of the limiting frame of the present application; Figure 5 is a schematic view of the three-dimensional structure of the fixed clamping plate of the present application; Figure 6 is a schematic view of the three-dimensional structure of the limiting frame of the present application; Figure 7 is a schematic view of the structure of A in the present application; Figure 5 ​Figure 8 Fig. 1 is a schematic diagram of a three-dimensional sectional structure of a quick release component of the present application.

[0016] In the figure: 1, mounting plate; 2, hinged block; 3, protective cover; 4, telescopic section; 5, retraction section; 6, through hole; 7, limiting frame; 8, sliding plate; 9, spring shock absorber; 10, fixed clamping plate; 11, sleeve; 12, clamping groove; 13, first silica gel pad; 14, sliding groove; 15, limiting pin; 16, notch; 17, lever; 18, spring; 19, shaft; 20, quick release component; 21, threaded knob; 22, clamping component; 23, second silica gel pad; 24, limiting groove. DETAILED DESCRIPTION

[0017] It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0018] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0019] In the present application, unless otherwise stated, the orientation such as "up, down" is generally with respect to the direction shown in the drawings, or with respect to the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is generally with respect to the left and right shown in the drawings; "inner, outer" refers to the inner and outer with respect to the contour of each component itself, but the above orientation words are not used to limit the present application.

[0020] Please refer to Figures 1-8 The protective device provided by the embodiment is specially designed for railway communication transmission lines, two upper and lower symmetrical protective covers 3 are rotatably connected to the front of the mounting plate 1 through the hinged blocks 2, the through holes 6 for hooking the lock bodies are fixedly connected to the outer surfaces of the protective covers 3, the telescopic sections 4 are arranged on the two sides of the protective covers 3, the retraction sections 5 are arranged at the ends of the telescopic sections 4; the limiting frames 7 are arranged inside the protective covers 3 on the front of the mounting plate 1, the sliding plates 8 are slidably connected inside the limiting frames 7, the spring shock absorbers 9 are symmetrically arranged on the two sides of the sliding plates 8; the fixed clamping plates 10 are fixedly connected to the outer sides of the sliding plates 8, the sleeves 11 are fixedly connected to the outer surfaces of the fixed clamping plates 10, the sleeves 11 are sleeved on the outer surfaces of the limiting frames 7, the protective modules and the clamping fixed modules are both provided with two groups and are symmetrically arranged on the left and right sides, which constitute the core structure of the device buffer adjustment.

[0021] Specifically, after the installation of the device, when the railway bridge expands and contracts due to temperature difference and load, the bridge plate will drive the communication transmission line to move synchronously. When the cable moves, it will pull or push the fixed clamping plate 10. The fixed clamping plate 10 drives the sliding plate 8 to slide along the inside of the limiting frame 7 through the sleeve 11. When the sliding plate 8 slides, it will squeeze the spring shock absorber 9 on one side. The spring shock absorber 9 absorbs the impact force generated by the displacement through its elastic deformation, while the spring shock absorber 9 on the other side is stretched to assist in resetting. In this process, the expansion sections 4 on both sides of the protective cover 3 will adaptively expand and contract and bend with the displacement of the cable. The contraction section 5 synchronously adjusts the form, always maintains the wrapping protection of the cable, avoids continuous friction between the cable and the fixed part, and protects the integrity of the cable sheath and the internal core wire.

[0022] Please refer to Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 The clamping and fixing module of the protective device includes a fixed clamping plate 10, a quick release part 20, a threaded knob 21 and a clamping part 22. The outer surface of the fixed clamping plate 10 is provided with a plurality of clamping grooves 12 arranged in a ring array, and the inner side wall of the clamping groove 12 is fixedly connected with a first silica gel pad 13. The inner side wall of the fixed clamping plate 10 is rotatably connected with the quick release part 20 through the shaft 19 on one side of the clamping groove 12. The inner side wall of the quick release part 20 is threadedly connected with the threaded knob 21, and the end of the threaded knob 21 is rotatably connected with the clamping part 22. The clamping part 22 is fixedly connected with a second silica gel pad 23 on the side close to the first silica gel pad 13. The inner side wall of the fixed clamping plate 10 is provided with a limiting module outside the clamping groove 12. The limiting module includes a limiting pin 15, a lever 17 and a spring 18. The inner side wall of the fixed clamping plate 10 is provided with a sliding groove 14, and the limiting pin 15 is slidably connected to the inner side wall of the sliding groove 14. The outer surface of the fixed clamping plate 10 is provided with a slot 16, and the lever 17 is located inside the slot 16 and is fixed to the outer surface of the limiting pin 15 at one end. The outer surface of the quick release part 20 is provided with a limiting groove 24, and the end of the limiting pin 15 is clamped in the limiting groove 24. The device is quickly disassembled and adapted to multiple cables.

[0023] Specifically, when installing the cable, first, the lever 17 in the slot 16 is pushed, the lever 17 drives the limiting pin 15 to slide along the sliding groove 14 and compresses the spring 18, so that the end of the limiting pin 15 is separated from the limiting groove 24 of the quick release 20; then the quick release 20 is rotated outward around the shaft 19, and a single or multiple communication transmission lines with different diameters are respectively placed in the corresponding clamping grooves 12, and the first silica gel pad 13 is preliminarily attached to the outer surface of the cable; the quick release 20 is reversely rotated to be attached to the inner side wall of the fixed clamping plate 10, and after the lever 17 is released, the spring 18 pushes the limiting pin 15 to reset and be clamped into the limiting groove 24, so that the locking of the quick release 20 is completed; the threaded knob 21 is rotated clockwise, the threaded knob 21 moves along the threads of the quick release 20, drives the clamping piece 22 to approach the cable, until the second silica gel pad 23 is tightly attached to the cable, and the number of rotation of the knob is adjusted according to the diameter of the cable, so as to ensure the stability of clamping and avoid excessive extrusion and damage to the cable; when disassembling, the lever 17 is operated repeatedly to quickly open the quick release 20, so that the cable is conveniently disassembled and assembled.

[0024] Please refer to Figures 1-3 The protection module of the protection device includes two upper and lower symmetrical protection covers 3, the protection covers 3 are rotationally connected with the mounting plate 1 through the hinge blocks 2, the outer surface of the protection cover 3 is provided with a through hole 6, the extension sections 4 on the two sides of the protection cover 3 and the contraction section 5 at the end are elastically deformable structures, and the protection cover 3 can completely wrap the internal cable and the clamping and fixing module after being closed, thereby forming an auxiliary structure for omnidirectional protection of the device.

[0025] Specifically, after the clamping and fixing of the cable are completed, the two upper and lower protection covers 3 are rotated inward around the hinge blocks 2, so that the protection covers 3 completely wrap the internal communication transmission line, the fixed clamping plate 10 and other components from the upper and lower sides; according to the arrangement form of the cable, the extension sections 4 on the two sides of the protection cover 3 can be freely extended and contracted and bent, and the contraction section 5 can contract the end of the protection cover 3, thereby reducing the protection gap; finally, a special lock body is hooked through the through hole 6 on the outer surface of the protection cover 3, so that the upper and lower protection covers 3 are locked as a whole, a closed protection space is formed, the wind and sand, rain and snow along the railway can be resisted, the damage of foreign matters and collision to the cable can be blocked, and omnidirectional protection of the cable is realized.

[0026] In summary, when the overall device is in use: first, the mounting plate 1 is fixedly installed on the designated component on the outer side of the railway bridge or along the track by means of bolts and other fasteners, and the upper and lower protective covers 3 are respectively opened upward and downward by rotating around the hinge block 2; then the lever 17 in the slot 16 on the outer surface of the fixed clamping plate 10 is pushed, the lever 17 drives the limiting pin 15 to slide along the sliding groove 14 and compresses the internal spring 18, so that the end of the limiting pin 15 is separated from the limiting groove 24 on the outer surface of the quick release part 20, and then the quick release part 20 is opened by rotating outward around the shaft rod 19; the communication transmission line to be protected is placed in the clamping groove 12 of the fixed clamping plate 10, the quick release part 20 is rotated around the shaft rod 19 in the opposite direction to make it fit the inner side wall of the fixed clamping plate 10, and after the lever 17 is loosened, the spring 18 pushes the limiting pin 15 to reset and is clamped into the limiting groove 24 of the quick release part 20, completing the locking and fixing of the quick release part 20; then the threaded knob 21 is rotated clockwise, the threaded knob 21 moves along the inner side wall of the quick release part 20 in a threaded manner, drives the clamping part 22 to move close to the cable, until the second silica gel pad 23 on the inner side of the clamping part 22 tightly fits the outer surface of the cable, the number of rotation of the threaded knob 21 is adjusted according to the diameter of the cable, to ensure that the cable is stably clamped and not excessively squeezed; the above operation is repeated to complete the cable installation of the other group of left-right symmetrical clamping and fixing modules, so that the cable between the two groups is slightly bent, facilitating the cable to move away from and close to each other with the two groups of clamping and fixing modules; if multiple cables need to be protected at the same time, they can be installed in different clamping grooves 12, and then according to the layout length of the cable, the telescopic sections 4 on both sides of the protective cover 3 can make the both ends of the protective cover 3 freely extend and bend, and the setting of the contraction section 5 can wrap the outside of the cable clamping part, which can protect the cable and the inside of the device; then the upper and lower protective covers 3 are closed by rotating inward around the hinge block 2, so that the protective covers 3 wrap the cables and clamping and fixing modules inside from the upper and lower sides, the special lock body is hooked through the through hole 6 on the outer surface of the protective cover 3, the upper and lower protective covers 3 are locked as a whole, and the overall installation of the device is completed. When the bridge stretches and shrinks due to temperature difference and load, the cable moves with the bridge plate and drives the fixed clamping plate 10, the fixed clamping plate 10 drives the sliding plate 8 to slide along the inside of the limiting frame 7, the sliding plate 8 squeezes the spring shock absorber 9 on both sides, the spring shock absorber 9 buffers the pulling force of the cable through elastic deformation, and at the same time, the telescopic sections 4 and the contraction section 5 on both sides of the protective cover 3 adaptively extend and bend, continuously maintaining the wrapping protection of the cable, realizing the stable operation protection of the cable.

[0027] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, and can be welding, bolt and nut fitting connection, bolt or screw connection or other known connection mode, which will not be described one by one here. In the above, whenever it is mentioned that it is fixedly connected, it is preferred to consider welding. Although the embodiments of the application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the application, and the scope of the application is defined by the appended claims and their equivalents.

Claims

1. A protective device specifically designed for railway communication transmission lines, comprising a mounting plate (1), a protective module, a buffer module, and a clamping and fixing module, characterized in that: The protective module includes a protective cover (3), which is rotatably connected to the front of the mounting plate (1) via a hinge block (2). Telescopic sections (4) are provided on both sides of the protective cover (3), and retractable sections (5) are provided at the ends of the telescopic sections (4). The buffer module includes a limiting frame (7), a sliding plate (8), and spring dampers (9). The limiting frame (7) is installed in front of the mounting plate (1) and located inside the protective cover (3). The sliding plate (8) is slidably connected to the inside of the limiting frame (7). The spring dampers (9) are symmetrically installed on both sides of the sliding plate (8). The clamping and fixing module includes a fixed clamping plate (10), a quick-release component (20), a threaded knob (21), and a clamping component (22). The fixed clamping plate (10) is fixedly connected to the outside of the sliding plate (8). A clamping groove (12) is provided on the outer surface of the fixed clamping plate (10). The quick-release component (20) is rotatably connected to the inner wall of the fixed clamping plate (10) via a shaft (19) and located on one side of the clamping groove (12). The threaded knob (21) is threadedly connected to the inner wall of the quick-release component (20). The clamping component (22) is rotatably connected to the end of the threaded knob (21).

2. The protective device specifically designed for railway communication transmission lines according to claim 1, characterized in that: The protective cover (3) has two parts and is arranged symmetrically on top and bottom. The outer surface of the protective cover (3) is fixedly connected with a through hole (6) for hooking the lock body.

3. The protective device specifically designed for railway communication transmission lines according to claim 1, characterized in that: The protective module and the clamping and fixing module are both provided in two sets and are arranged symmetrically on the left and right.

4. A protective device specifically designed for railway communication transmission lines according to claim 1, characterized in that: A sleeve (11) is fixedly connected to the outer surface of the middle part of the fixed clamping plate (10), and the sleeve (11) is sleeved on the outer surface of the limiting frame (7).

5. A protective device specifically designed for railway communication transmission lines according to claim 1, characterized in that: The inner wall of the clamping groove (12) is fixedly connected to a first silicone pad (13). The clamping groove (12) is provided with a number of grooves and is evenly distributed in a ring array. The clamping member (22) is fixedly connected to a second silicone pad (23) on the side near the first silicone pad (13).

6. A protective device specifically designed for railway communication transmission lines according to claim 1, characterized in that: The inner sidewall of the fixed clamping plate (10) is provided with a limiting module located outside the clamping groove (12). The limiting module includes a limiting pin (15), a lever (17) and a spring (18). The inner sidewall of the fixed clamping plate (10) is provided with a sliding groove (14). The inner sidewall of the sliding groove (14) is slidably connected to the limiting pin (15). The outer surface of the fixed clamping plate (10) is provided with a slot (16). The lever (17) is located inside the slot (16) and one end is fixedly installed on the outer surface of the limiting pin (15).

7. A protective device specifically designed for railway communication transmission lines according to claim 1, characterized in that: The quick-release part (20) has a limiting groove (24) on its outer surface, and the end of the limiting pin (15) is engaged inside the limiting groove (24).

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