Method and device for preventing dropper from falling

Abstract

The present invention discloses a method and a device for preventing the drop of a suspension string. The device of the present invention includes a pull rope for preventing the drop of the suspension string and a pair of fixing parts arranged at both ends of the pull rope. A binding piece for fixing is sleeved on the fixing part, and the pull rope is made of anti-aging material. The method of the present invention is to combine the suspension string, the catenary and the pull rope, including step one: first fix one end of the pull rope on the catenary with a binding piece, and step two: then fix the other end of the pull rope on the suspension string with a binding piece. The present invention has a simple structure, firm fixation, durability, high safety factor, effectively guarantees the safe operation of trains, and avoids safety accidents caused by the power supply line to the train operation, and is applicable to all fields of preventing the drop of suspension strings on railways.

Description

Technical Field

[0001] The present invention belongs to the field of railway power supply, and relates to a method and device for preventing the drop of a suspension string that tightens a conductor, specifically a method and device for preventing the drop of a suspension string. Background Art

[0002] When a train is running, it obtains electrical resources through the catenary on the high-speed railway. The catenary is a special form of transmission line erected above the railway to supply power to electric locomotives. The conductors of the transmission line are fixed on the catenary poles. To prevent the conductors from being overly pulled and broken, the conductors are fixed relatively loosely. Also, because the conductors need to maintain a certain parallelism when supplying power to the train, a carrier cable for ensuring the parallelism of the conductors is provided above the conductors. The carrier cable is a tightly pullable copper stranded wire. To ensure the parallelism of the conductors, a suspension string is provided every five to six meters on the catenary conductors to ensure that the conductors do not sag.

[0003] The suspension string in the prior art is only a single wire. During long-term use, due to long-term frequent vibration or the influence of the external environment, the connection part between the suspension string and the carrier cable or the connection part between the suspension string and the conductor is extremely easy to break. Especially when the suspension string is disconnected from the carrier cable, a suspension string about one meter long hangs on the conductor. After the suspension string comes into contact with the running train, it will burn out the pantograph of the train locomotive, not only affecting the operation of the train, but also possibly causing major safety accidents. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a method and device for preventing the drop of a suspension string, so as to achieve the purpose of preventing the impact on the train operation and power supply after the suspension string drops.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows: A device for preventing the drop of a suspension string includes a pull rope for preventing the drop of the suspension string, and a pair of fixing parts provided at both ends of the pull rope. A binding member for fixing is sleeved on the fixing part, and the pull rope is made of an anti-aging material.

[0006] As a limitation to the present invention: The fixing part is a long hole.

[0007] As a further limitation to the present invention: The binding member adopts a cable tie or a silicone buckle with a one-way locking function.

[0008] As a further limitation to the present invention: The pull rope adopts a winding tube or a spring rope with an elastic structure.

[0009] As a further limitation to the present invention: The pull rope adopts any one of the materials of polyvinyl chloride, nitrile, polytetrafluoroethylene, silicone rubber, and Teflon.

[0010] As a limitation of the present invention: combining the dropper, the catenary and the stay rope together, comprising the following steps:

[0011] Step 1: First, fix one end of the stay rope on the catenary with a binding member;

[0012] Step 2: Then, fix the other end of the stay rope on the dropper with a binding member.

[0013] As another limitation of the present invention: in Step 2, in order to place the dropper above the conductor, the end of the stay rope fixed to the dropper is above the center in the length direction of the dropper.

[0014] As yet another limitation of the present invention: in Step 1 and Step 2, when the stay rope is fixed to the catenary and the dropper respectively, any one of the following three methods is adopted:

[0015] a. Use a cable tie with a one-way locking function to fix one end of the stay rope to the catenary and the other end of the stay rope to the dropper;

[0016] b. Wind the two ends of the stay rope around the catenary and the dropper respectively, and after fixing one end of the stay rope to the catenary and the other end of the stay rope to the dropper with liquid silicone rubber, tie them tightly with cable ties respectively;

[0017] c. After winding the two ends of the stay rope around the catenary and the dropper respectively, use rubber buckles to fix one end of the stay rope to the catenary and the other end of the stay rope to the dropper.

[0018] Due to the adoption of the above technical solutions, compared with the prior art, the beneficial effects obtained by the present invention are as follows:

[0019] (1) The present invention is provided with a stay rope with an auxiliary function for preventing the dropper from falling between the dropper and the catenary. Binding members for fixing are provided at both ends of the stay rope. One end of the stay rope is fixed to the catenary and the other end is fixed to the dropper. Even if the dropper is disconnected from the catenary, there will be a stay rope to fix it to the catenary. Moreover, the binding member is a cable tie with a one-way locking function or a rubber buckle that can be firmly fixed, connecting the stay rope to the dropper and the catenary firmly together, with simple structure, high safety factor and avoiding safety accidents;

[0020] (2) The stay rope of the present invention is made of anti-aging material, making the stay rope exposed to the external environment durable, greatly reducing the probability of the dropper falling, and making the power supply method during the train operation safer and more reliable;

[0021] (3) The stay rope of the present invention has an elastic structure, so that when the dropper disconnected from the catenary is connected to the stay rope, it has a certain buffering effect, and at the same time, it also avoids the stay rope being too tightly connected to the dropper and affecting the parallelism of the conductor;

[0022] When the messenger wire of the present invention falls, there is a certain vertically downward force. One end of the pulling rope fixed to the messenger wire is above the center of the messenger wire, which can accurately ensure that the messenger wire is still above the conductor after falling.

[0023] In summary, the structure of the present invention is simple, firmly fixed, durable, with a high safety factor, effectively ensuring the safe operation of trains, avoiding safety accidents caused by the power supply line to the train operation, and is applicable to the field of preventing messenger wire fall on all railways. Brief Description of the Drawings

[0024] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0025] Figure 1 It is a schematic structural diagram of Embodiment 1 and Embodiment 2 of the present invention.

[0026] In the figure: 1 - pulling rope, 2 - fixing part, 3 - binding piece, 4 - catenary, 5 - messenger wire, 6 - conductor. Detailed Description of the Preferred Embodiments

[0027] The preferred embodiments of the present invention will be described below with reference to the drawings. It should be understood that the method and device for preventing messenger wire fall described herein are preferred embodiments, which are only used to illustrate and explain the present invention and do not constitute a limitation to the present invention.

[0028] Embodiment 1 Device for Preventing Messenger Wire Fall

[0029] As shown in this embodiment Figure 1 A device for preventing messenger wire fall includes a pulling rope 1 for preventing the messenger wire 5 from falling and a pair of fixing parts 2 provided at both ends of the pulling rope 1. The pulling rope 1 is a winding tube or a spring rope with an elastic structure. In this embodiment, the pulling rope 1 is a winding tube. The pulling rope 1 is made of any one of anti-aging materials such as polyvinyl chloride, nitrile, polytetrafluoroethylene, silicone rubber, and teflon, so that the service life of the pulling rope 1 is longer, and it can better resist the damage of harsh environments such as strong winds, heavy rains, and direct sunlight in the external environment, increasing the secondary protection effect of the pulling rope 1 on the messenger wire 5.

[0030] A binding piece 3 for fixing is sleeved on the fixing part 2. The binding piece 3 is a cable tie or a silicone buckle with a one-way locking function. The fixing parts 2 are all long holes, which can allow cable ties of different sizes to pass through, having strong versatility.

[0031] Embodiment 2 Method for Preventing Messenger Wire Fall

[0032] As shown in this embodiment Figure 1 A method for preventing messenger wire fall, combining the messenger wire 5, the catenary 4 and the pulling rope 1 together, includes the following steps:

[0033] Step 1: First, fix one end of the guy wire 1 to the catenary 4;

[0034] Step 2: Then, fix the other end of the guy wire 1 to the suspension 5. In Step 2, in order to place the suspension 5 above the conductor 6, the fixed end of the guy wire 1 and the suspension 5 is above the center in the length direction of the suspension 5. When the guy wire 1 is fixed to the catenary 4 and the suspension 5, the guy wire 1 is in a tensioned state. After the suspension 5 falls, it is tightened with the guy wire 1. Since the fixing point of the guy wire 1 and the suspension 5 is above the center in the length direction of the suspension 5, the length of the suspension 5 above the fixing point of the guy wire 1 is less than the length of the suspension 5 below the fixing point of the guy wire 1. Therefore, the suspension 5 is still above the conductor 6.

[0035] In Step 1 and Step 2, when the guy wire 1 is fixed to the catenary 4 and the suspension 5 respectively, any of the following three methods can be adopted:

[0036] a. Use a cable tie with a one-way locking function. First, fix one end of the guy wire 1 to the catenary 4, pass the cable tie through the long hole at one end of the guy wire 1, and connect it to the catenary 4. Then, fix the other end of the guy wire 1 to the suspension 5. Take another cable tie, pass it through the long hole at the other end of the guy wire 1, and connect it to the suspension 5;

[0037] b. Wind both ends of the guy wire 1 around the catenary 4 and the suspension 5 respectively. After firmly fixing one end of the guy wire 1 to the catenary 4 and the other end of the guy wire 1 to the suspension 5 with liquid silicone rubber, tie them tightly with cable ties respectively;

[0038] c. After winding both ends of the guy wire 1 around the catenary 4 and the suspension 5 respectively, fix one end of the guy wire 1 to the catenary 4 and the other end of the guy wire 1 to the suspension 5 firmly with rubber buckles.

Claims

1. A device for preventing a suspension string from falling, characterized in that: The invention comprises a pull rope for preventing the hanging string from falling, a pair of fixing parts provided at both ends of the pull rope, and a binding piece for fixing is sleeved on the fixing part. The pull rope is made of anti-aging material; the pull rope is made of a winding tube or spring rope with an elastic structure; the fixing part is a long hole; the binding piece is made of a cable tie or a silicone buckle with a one-way locking function; Assembling the drop cord, catenary and guy ropes involves the following steps: Step 1: First, secure one end of the pull rope to the load-bearing cable with a binding; Step 2: Secure the other end of the pull rope to the hanging string with a binding; In step 2, in order to place the suspension string above the conductor, the end of the pull rope fixed to the suspension string is located above the center of the suspension string in the length direction; In steps 1 and 2, the pull rope is fixed to the load-bearing cable and the suspension string respectively in any of the following three ways: a. Use a one-way locking cable tie to secure one end of the pull rope to the load-bearing cable and the other end to the suspension string. b. Wrap the ends of the pull rope around the load-bearing cable and the suspension string respectively. Use liquid silicone rubber to secure one end of the pull rope to the load-bearing cable and the other end of the pull rope to the suspension string. Then, secure them with cable ties. c. Wrap the ends of the pull rope around the load-bearing cable and the suspension string respectively, and use rubber buckles to secure one end of the pull rope to the load-bearing cable and the other end of the pull rope to the suspension string.

2. The anti-drop device for messenger wires according to claim 1, characterized in that: The drawstring is made of any one of polyvinyl chloride, nitrile, polytetrafluoroethylene, silicone rubber and Teflon.

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