Railway power supply cable support

Abstract

The utility model provides a railway power supply cable support which comprises a concrete counterweight base and a support mechanism, fixing foot nails penetrate through holes of the concrete counterweight base to be inserted into railway gravel, the cable support is fixed on railway ballast, a cross arm reduces the spacing distance of the base, the falling degree of an overhead line is reduced, and the safety of the overhead line is improved. The insulator isolates electrical connection to prevent power signal interference and electric leakage and maintain safe operation of a railway, the carrier cable base on the flat cantilever is used for erecting a carrier cable, reducing the falling degree of an overhead line, keeping the straightness and increasing the train operation safety coefficient, the fixed lantern ring connects the flat cantilever and the inclined cantilever through the connecting rod, the firmness and stability of the support are improved, and the safety of the support is improved. The connecting steel cable fixes the positioning pipe at the bottom, the elasticity of the connecting steel cable increases the moving range of the bottom positioner, power failure and other physical damage possibly caused by train running are avoided, the power supply safety is improved, the return line base at the bottom is used for erecting a return line, inductive reactance of a metal protective layer is reduced, and the influence of grounding resistance of a ground screen is eliminated.

Description

Technical Field

[0001] The utility model relates to the field of railway power supply cable equipment, in particular to a railway power supply cable support. Background Technique

[0002] With the continuous development of urban construction, the cableization of urban power lines is the trend of development in the world today. Subsequently, a large number of cables need to be laid. Electrified railways emerged with the appearance of electric locomotives. Since electric locomotives do not carry their own energy, the power supply system along the railway needs to continuously supply electric energy to drive the vehicles.

[0003] According to the search, a railway power supply cable support with the announcement number of CN214523431U includes a fixed support. A sliding groove is dug at the outer end of the fixed support. A sliding block is slidably connected in the sliding groove. The outer end of the sliding block is fixedly connected with a sliding support. The upper end of the sliding support is fixedly connected with a plurality of uniformly distributed fixed rings. A slot is dug at the right end of the sliding block. A plurality of uniformly distributed jacks are dug at the right end of the fixed support. An insertion rod is inserted in the jack. The insertion rod corresponds to the slot. The right end of the insertion rod is fixedly connected with a steel plate. The right end of the steel plate is fixedly connected with a handle. A scale is marked at the left end of the fixed support. Insulating rubber sleeves are sleeved on the outer ends of the fixed rings. The insulating rubber sleeves are made of insulating rubber material, which can reduce the wear of the cable on the support. It can realize that when installing cables of different sizes, the cable support can make corresponding adjustments to facilitate the installation of cables.

[0004] However, when implementing the above technical solutions, the following problems exist: In the above technical solutions, only fixed rings are used for the erection of railway cables. The distance between the fixed rings is relatively far, and the sag degree of the overhead line is relatively large. Smaller spacing and a larger number of cable supports are required, resulting in high construction costs and unable to improve good economic benefits. Moreover, the overhead line is not straight enough, posing a greater safety hazard when the train passes by, and is prone to power outages and other physical damages. There is no setting of a return line, and the electrical connection between the railway track and the electrical equipment or power lines supported thereon cannot be isolated, prone to circuit failures, and unable to provide safe and effective cable erection and power transmission. Content of the Utility Model

[0005] The purpose of the utility model is to provide a railway power supply cable support to solve the problems in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A railway power supply cable support, comprising a concrete counterweight base and a support mechanism. A connecting support base is provided on the top of the concrete counterweight base. Fixed studs are provided at the center of the bottom of the concrete counterweight base. A pillar is provided on the top of the connecting support base. A support mechanism is provided on the top of the pillar. A cross arm is provided on the inner side of the top of the concrete counterweight base. A fixing screw is provided at the center of the cross arm. Fixed blocks are provided on the inner sides of both ends of the cross arm. Sectional insulators are provided inside the fixed blocks. A flat boom is provided inside the sectional insulator at the top. A catenary base is provided at the inner end of the flat boom. A fixing collar is provided at the center of the flat boom. A connecting rod is provided at the bottom of the fixing collar. An inclined boom is provided at the bottom of the connecting rod. A connecting cable is provided at the bottom of the catenary base. A positioning pipe is provided at the bottom of the connecting cable. A positioner is provided at the inner end of the positioning pipe.

[0007] Preferably, the support mechanism includes a cross arm, a fixing screw, a fixed block, a sectional insulator, a flat boom, a catenary base, a fixing collar, a connecting rod, an inclined boom, a connecting cable, a positioning pipe, a positioner, a top column, a return line support rod, a return insulator, and a return line base. A top column is provided at the top end of the pillar. A return line support rod is provided on the outer side of the top of the top column. A return insulator is provided at the bottom of the return line support rod. A return line base is provided at the bottom of the return insulator.

[0008] Preferably, the concrete counterweight base and the connecting support base are sleeved. The diameter of the concrete counterweight base matches the outer diameter of the bottom of the connecting support base. The connecting support base and the fixed studs are fixedly connected.

[0009] Preferably, the cross arm is bolted to the pillar through the fixing screw. Four groups of fixing screws are provided. The cross arm and the fixed block are fixedly connected. The fixed block and the sectional insulator are fixedly connected. Four groups of sectional insulators are provided.

[0010] Preferably, the cross arm and the flat boom are fixedly connected. The flat boom and the catenary base are sleeved. The flat boom and the fixing collar are sleeved. The catenary base and the flat boom are in one-to-one correspondence.

[0011] Preferably, the fixing collar and the connecting rod are rotatably connected. The connecting rod is rotatably connected to the inclined boom through the fixing collar. The connecting rod and the inclined boom are in one-to-one correspondence.

[0012] Preferably, the catenary base and the connecting cable are lock-connected. The positioning pipe and the connecting cable are lock-connected. The positioning pipe and the fixing collar are rotatably connected. The positioning pipe and the positioner are fixedly connected.

[0013] Preferably, a clamping groove connection is provided between the support column and the top column. The top column is connected by fixing screws and cross-arm bolts. The cross-arm is fixedly connected to the return line support rod. A fixed connection is provided between the return line support rod and the return insulator. A fixed connection is provided between the return insulator and the return line base.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The concrete counterweight base has a large mass, which lowers the center of gravity of the descending cable support, increases the stability of the cable support fixation. The fixed studs connecting the bottom of the support base pass through the openings of the concrete counterweight base and insert into the railway ballast to fix the cable support to the ballast. The support column raises the height of the support mechanism for cable connection and installation on the top of the train. The cross-arm is bolted to the support column by fixing screws. The cross-arm reduces the spacing distance of the cable fixing base, reduces the sagging degree of the overhead line, reduces the required installation quantity of the cable support, reduces the construction cost, and improves the economic benefit. The sectional insulator isolates the electrical connection between the railway track and the electrical equipment or power line supported thereon, prevents electrical signal interference and electric leakage, and maintains the safe operation of the railway. The catenary base on the flat boom is used to erect the catenary to reduce the sagging degree of the bottom overhead line, maintain the straightness, and increase the safety level of train operation. The fixed collar connects the flat boom and the inclined boom through a connecting rod to increase the firm stability of the support mechanism. The connecting steel cable at the bottom of the fixed catenary base fixes the positioning pipe. The certain elasticity of the connecting steel cable itself increases the movement range of the bottom positioner, avoids power outage and other physical damages that may be caused by train operation, and improves the power supply safety. The return insulator isolates the electrical connection between the railway track and the electrical equipment or power line supported thereon. The return line base at the bottom is used to erect the return line, prevents the serious influence of the magnetic field formed by the single-phase grounding fault current on the outside, reduces the inductive reactance of the metal sheath, and eliminates the influence of the ground grid grounding resistance. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall external structure of the present utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the top support mechanism of the present utility model;

[0018] Figure 3 It is a schematic diagram of the external structure of the top support mechanism of the present utility model;

[0019] Figure 4 It is a schematic diagram of the internal structure of the top support mechanism of the present utility model.

[0020] Reference numerals in the figure: 1, concrete counterweight base; 2, connecting support base; 3, fixing stud; 4, support column; 5, bracket mechanism; 501, cross arm; 502, fixing screw; 503, fixing block; 504, sectional insulator; 505, horizontal wrist arm; 506, carrier cable base; 507, fixing collar; 508, connecting rod; 509, inclined wrist arm; 510, connecting cable; 511, positioning pipe; 512, positioner; 513, top column; 514, return line support rod; 515, return insulator; 516, return line base. Detailed implementation

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-4 , the present invention provides a technical solution: a railway power supply cable bracket, including a concrete counterweight base 1 and a bracket mechanism 5. A connecting support base 2 is arranged on the top of the concrete counterweight base 1, a fixing stud 3 is arranged at the center of the bottom of the concrete counterweight base 1, a support column 4 is arranged on the top of the connecting support base 2, a bracket mechanism 5 is arranged on the top of the support column 4, a cross arm 501 is arranged on the inner side of the top of the concrete counterweight base 1, a fixing screw 502 is arranged at the center of the cross arm 501, fixing blocks 503 are arranged on the inner sides of both ends of the cross arm 501, a sectional insulator 504 is arranged on the inner side of the fixing block 503, a horizontal wrist arm 505 is arranged on the inner side of the top sectional insulator 504, a carrier cable base 506 is arranged at the inner end of the horizontal wrist arm 505, a fixing collar 507 is arranged at the center of the horizontal wrist arm 505, a connecting rod 508 is arranged at the bottom of the fixing collar 507, an inclined wrist arm 509 is arranged at the bottom of the connecting rod 508, a connecting cable 510 is arranged at the bottom of the carrier cable base 506, a positioning pipe 511 is arranged at the bottom of the connecting cable 510, and a positioner 512 is arranged at the inner end of the positioning pipe 511.

[0023] Further, the support mechanism 5 includes a cross arm 501, fixing screws 502, fixing blocks 503, sectional insulators 504, horizontal wrist arms 505, catenary bases 506, fixing collars 507, connecting rods 508, inclined wrist arms 509, connecting cables 510, positioning pipes 511, positioners 512, top posts 513, return line struts 514, return insulators 515 and return line bases 516. A top post 513 is provided at the top of the pillar 4. A return line strut 514 is provided on the outer side of the top of the top post 513. A return insulator 515 is provided at the bottom of the return line strut 514. A return line base 516 is provided at the bottom of the return insulator 515. The return insulator 515 isolates the electrical connection between the railway track and the electrical equipment or power line supported thereon, and the return line base 516 at the bottom is used for erecting the return line, preventing the serious influence of the magnetic field formed by the single-phase grounding fault current on the outside, reducing the inductive reactance of the metal sheath, and eliminating the influence of the grounding resistance of the ground grid.

[0024] Further, the concrete counterweight base 1 and the connecting support base 2 are sleeved. The diameter of the concrete counterweight base 1 matches the outer diameter of the bottom of the connecting support base 2. The connecting support base 2 and the fixing spikes 3 are fixedly connected. The concrete counterweight base 1 has a large mass, lowering the center of gravity of the descending cable support, increasing the stability of the cable support fixation. The fixing spikes 3 at the bottom of the connecting support base 2 pass through the openings of the concrete counterweight base 1 and are inserted into the railway ballast to fix the cable support to the ballast. The pillar 4 raises the height of the support mechanism 5 for cable connection and installation on the top of the train.

[0025] Further, the cross arm 501 is bolted to the pillar 4 through the fixing screws 502. Four groups of fixing screws 502 are provided. The cross arm 501 and the fixing block 503 are fixedly connected. The fixing block 503 and the sectional insulator 504 are fixedly connected. Four groups of sectional insulators 504 are provided. The cross arm 501 is bolted to the pillar 4 through the fixing screws 502. The cross arm 501 reduces the spacing distance of the cable fixing bases, reduces the sagging degree of the overhead line, reduces the required installation quantity of the cable supports, reduces the construction cost, and improves the economic benefit. The sectional insulator 504 isolates the electrical connection between the railway track and the electrical equipment or power line supported thereon, preventing power signal interference and electric leakage, and maintaining the safe operation of the railway.

[0026] Further, the cross arm 501 and the horizontal wrist arm 505 are fixedly connected. The horizontal wrist arm 505 and the catenary base 506 are sleeved. The horizontal wrist arm 505 and the fixing collar 507 are sleeved. The catenary bases 506 on the horizontal wrist arm 505 are in one-to-one correspondence. The catenary bases 506 on the horizontal wrist arm 505 are used for erecting the catenary to reduce the sagging degree of the bottom overhead line, maintain the straightness, and increase the safety degree of train operation.

[0027] Furthermore, the fixed collar 507 and the connecting rod 508 are rotatably connected. The connecting rod 508 is rotatably connected to the inclined wrist arm 509 through the fixed collar 507. The connecting rods 508 and the inclined wrist arms 509 are in one-to-one correspondence. The fixed collar 507 connects the flat wrist arm 505 and the inclined wrist arm 509 through the connecting rod 508, enhancing the firm stability of the support mechanism 5.

[0028] Furthermore, the contact wire base 506 and the connecting cable 510 are connected by a locking buckle. The positioning pipe 511 and the connecting cable 510 are connected by a locking buckle. The positioning pipe 511 and the fixed collar 507 are rotatably connected. The positioning pipe 511 and the positioner 512 are fixedly connected. The connecting cable 510 at the bottom of the fixed contact wire base 506 fixes the positioning pipe 511. The certain elasticity of the connecting cable 510 itself increases the movement range of the bottom positioner 512, avoiding power outage and other physical damages that may be caused by the train's operation, and improving the power supply safety.

[0029] Furthermore, the pillar 4 and the top post 513 are connected by a card slot. The top post 513 is bolted to the cross arm 501 through the fixing screw 502. The cross arm 501 is fixedly connected to the return line support rod 514. The return line support rod 514 and the return insulator 515 are fixedly connected. The return insulator 515 isolates the electrical connection between the railway track and the electrical equipment or power line supported thereon. The return line base 516 at the bottom is used to erect the return line, preventing the serious influence of the magnetic field formed by the single-phase grounding fault current on the outside, reducing the inductive reactance of the metal sheath, and eliminating the influence of the ground grid grounding resistance.

[0030] Working principle: Railway staff first determine the installation position of the cable support, place the concrete counterweight base 1 on the ballast. The concrete counterweight base 1 has a large mass, which lowers the center of gravity of the cable support and increases the stability of the cable support fixation. The fixing studs 3 at the bottom of the connecting support base 2 pass through the openings in the concrete counterweight base 1 and insert into the railway ballast to fix the cable support to the ballast. The pillar 4 raises the height of the support mechanism 5, facilitating the cable connection and installation on the top of the train. Then, the cross arm 501 is bolted to the pillar 4 through the fixing screws 502. The cross arm 501 reduces the spacing distance of the cable fixing base, reduces the sag degree of the overhead line, reduces the required installation quantity of the cable support, reduces the construction cost, and improves the economic benefit. Fixed blocks 503 are installed on both sides of the cross arm 501, and sectional insulators 504 are installed inside the fixed blocks 503. The sectional insulators 504 isolate the electrical connection between the railway track and the electrical equipment or power lines supported thereon, preventing electrical signal interference and leakage, and maintaining the safe operation of the railway. The catenary base 506 on the horizontal wrist arm 505 is used to erect the catenary to reduce the sag degree of the bottom overhead line, maintain the straightness, and increase the safety degree of train operation. The fixed collar 507 connects the horizontal wrist arm 505 and the inclined wrist arm 509 through the connecting rod 508, increasing the firm stability of the support mechanism 5. The fixed catenary base 506 connects the steel cable 510 to fix the bottom positioning pipe 511. The certain elasticity of the connecting steel cable 510 increases the movement range of the bottom positioner 512, avoiding power outage and other physical damages that may be caused by train operation and improving the power supply safety. Finally, the top post 513 is installed on the top of the pillar 4, and the cross arm 501 on the outside of the top post 513 is installed with a return line support rod 514, and the return line support rod 514 is installed with a return line insulator 515. The return line insulator 515 isolates the electrical connection between the railway track and the electrical equipment or power lines supported thereon. The bottom return line base 516 is used to erect the return line, preventing the serious influence of the magnetic field formed by the single-phase grounding fault current on the outside, reducing the inductive reactance of the metal sheath, and eliminating the influence of the ground grid grounding resistance. In this way, the operation and use of a normal process of a railway power supply cable support are completed.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A railway power supply cable support, comprising a concrete counterweight base (1) and a support mechanism (5), characterized in that: The top of the concrete counterweight base (1) is provided with a connecting support base (2), the bottom center of the concrete counterweight base (1) is provided with a fixing foot nail (3), the top of the connecting support base (2) is provided with a pillar (4), the top of the pillar (4) is provided with a bracket mechanism (5), the top inner side of the top of the concrete counterweight base (1) is provided with a cross arm (501), the center of the cross arm (501) is provided with a fixing screw (502), the inner sides of both ends of the cross arm (501) are provided with fixing blocks (503), the inner side of the fixing block (503) is provided with a segmented insulator (504), the top of the A flat arm (505) is arranged on the inner side of the segmented insulator (504), a load-bearing cable base (506) is arranged on the inner end of the flat arm (505), a fixing ring (507) is arranged in the center of the flat arm (505), a connecting rod (508) is arranged on the bottom of the fixing ring (507), an oblique arm (509) is arranged on the bottom of the connecting rod (508), a connecting steel cable (510) is arranged on the bottom of the load-bearing cable base (506), a positioning tube (511) is arranged on the bottom of the connecting steel cable (510), and a positioner (512) is arranged on the inner end of the positioning tube (511).

2. A railway power supply cable bracket according to claim 1, characterized in that: The support mechanism (5) comprises a cross arm (501), a fixing screw (502), a fixing block (503), a segmented insulator (504), a flat wrist arm (505), a load-bearing cable base (506), a fixing ring (507), a connecting rod (508), an oblique wrist arm (509), a connecting steel cable (510), a positioning tube (511), a positioner (512), a top column (513), a return line support rod (514), a return insulator (515) and a return line base (516); the top of the support (4) is provided with a top column (513), the outer side of the top of the top column (513) is provided with a return line support rod (514), the bottom of the return line support rod (514) is provided with a return insulator (515), and the bottom of the return insulator (515) is provided with a return line base (516).

3. The railway power supply cable bracket according to claim 1, characterized in that: The concrete counterweight base (1) and the connecting support base (2) are sleeved together, the diameter of the concrete counterweight base (1) matches the outer diameter of the bottom of the connecting support base (2), and the connecting support base (2) and the fixing foot nails (3) are fixedly connected.

4. The railway power supply cable support according to claim 1, characterized in that: The cross arm (501) is bolted to the support (4) via fixing screws (502), four groups of the fixing screws (502) are provided, the cross arm (501) is fixedly connected to the fixing block (503), the fixing block (503) is fixedly connected to the segmented insulator (504), and four groups of the segmented insulator (504) are provided.

5. The railway power supply cable support according to claim 1, characterized in that: The cross arm (501) and the flat arm (505) are fixedly connected, the flat arm (505) and the catenary base (506) are sleeved, the flat arm (505) and the fixed collar (507) are sleeved, and the catenary base (506) and the flat arm (505) correspond one to one.

6. The railway power supply cable support according to claim 1, characterized in that: The fixing collar (507) and the connecting rod (508) are rotatably connected, and the connecting rod (508) is rotatably connected to the oblique wrist arm (509) through the fixing collar (507), and the connecting rod (508) and the oblique wrist arm (509) correspond one to one.

7. The railway power supply cable support according to claim 1, characterized in that: The load-bearing cable base (506) and the connecting steel cable (510) are connected by a lock, the positioning tube (511) and the connecting steel cable (510) are connected by a lock, the positioning tube (511) and the fixing ring (507) are connected in a rotating manner, and the positioning tube (511) and the positioner (512) are connected in a fixed manner.

8. The railway power supply cable support according to claim 2, characterized in that: The support column (4) and the top column (513) are connected by a slot, the top column (513) is bolted to the cross arm (501) via a fixing screw (502), the cross arm (501) is fixedly connected to the return line support rod (514), the return line support rod (514) and the return insulator (515) are fixedly connected, and the return insulator (515) and the return line base (516) are fixedly connected.

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