Pull rope type derailment automatic braking device

Abstract

The invention relates to the technical field of railway wagon mechanical equipment, in particular to a pull rope type derailment automatic braking device. The pull rope type derailment automatic braking device comprises two derailment snapping devices which are symmetrically arranged and a three-way assembly, each derailment snapping device is connected to the three-way assembly through a connecting hose and connected with the three-way assembly through a derailment braking valve rod, and the three-way assembly is composed of a main pipe three-way part, a cut-off valve, a derailment vent valve and a hose three-way part. The left end of the hose tee joint is connected with the derailment vent valve, the other two ends of the hose tee joint are connected with the connecting hose, the other end of the derailment vent valve is connected with the cut-off valve, and the left end of the cut-off valve is connected with the main pipe tee joint; the device can rapidly trigger the derailment brake valve rod when the train derails, so that the train is braked emergently, accident loss is reduced, accident expansion is prevented, the structure is simple, fault points and the fault rate are reduced, and the safety of the train is improved.

Description

Technical Field

[0001] The invention relates to the technical field of railway freight car mechanical equipment, and in particular to a pull-rope type derailment automatic braking device. Background Art

[0002] At present, railway freight train derailment accidents may cause serious economic losses and safety hazards. When one or more vehicles in a railway freight train derail, it is usually difficult for the driver to detect it in time. These derailed vehicles will continue to run under the traction of the locomotive, which may cause other adjacent vehicles to derail or overturn one after another. This situation will not only cause damage to the vehicles and cargo, but also pose a serious threat to the sleepers, foundations, other equipment beside the track, and the lives of personnel.

[0004] There was no way around this from a supply chain perspective, so we had to find new solutions to meet customer needs and ensure the project went smoothly. Summary of the invention

[0005] 1. Technical issues to be resolved The invention provides a rope-pull type derailment automatic brake device to overcome the problem that there is no derailment valve adapted to Mozambique meter-gauge vehicles in the prior art.

[0006] (II) Technical solution To achieve the above object, the present invention provides a pull-rope derailment automatic brake device, comprising: two derailment breaking devices and a three-way assembly; The two derailing pull-off devices are symmetrically arranged, and the two derailing pull-off devices are respectively connected to the three-way assembly through a connecting hose, and a derailing brake valve rod is arranged between the derailing pull-off device and the connecting hose; The three-way assembly includes: a main pipe three-way, a cut-off valve, a derailment vent valve and a hose three-way; A derailment vent valve is arranged at the left end of the hose tee, one interface of the hose tee is inserted into the derailment vent valve, the other two interfaces of the hose tee are respectively connected to a connecting hose, and the hose tee is threadedly connected to the derailment vent valve; One end of the derailment vent valve is connected to the derailment vent valve, and the other end is provided with a cut-off valve, and the left end of the cut-off valve is provided with a main pipe tee; The derailing breaking device comprises: two elastic pins, a top beam and a steel cable, wherein the steel cable is a U-shaped structure, the left end of the steel cable is connected to the left end of the top beam, and the right end of the steel cable is connected to the right end of the top beam; The two elastic pins include: a first elastic pin and a second elastic pin.

[0007] Preferably, both ends of the connecting hose are provided with conical flared joints respectively, and the outer wall of the conical flared joint is provided with a hexagonal nut, and the hexagonal nut positions the connecting hose.

[0008] Preferably, the top beam is composed of two parts, the left end of the top beam is a rectangular connecting plate, and the right end is a rectangular cross beam, the rectangular connecting plate is vertically arranged, the rectangular cross beam and the rectangular connecting plate are perpendicular to each other, and the rectangular connecting plate and the rectangular cross beam are made as one body; A circular slot is provided at the upper end of the rectangular connecting plate, a connecting hole is provided at the right end of the rectangular crossbeam, a top beam pin is provided in the connecting hole, a second elastic pin is inserted in the top beam pin, and the top beam pin positions the second elastic pin.

[0009] Preferably, the two ends of the steel cable are respectively provided with steel cable heads, and the two steel cable heads are respectively covered with a left joint and a right joint, the left joint is a cylindrical structure, and the outer wall of the left joint is provided with a through hole, the steel cable head at the left end is inserted into the left joint, and the steel cable head at the right end is inserted into the right joint; The right joint is composed of two parts. The right end is a cylindrical structure with a through hole on the outer wall, and the left end is provided with a cylindrical fixing pin on the outer edge. A first elastic pin is inserted into the cylindrical fixing pin.

[0010] Preferably, the left joint is inserted into a circular slot provided on the rectangular connecting plate, and the circular slot limits the position of the left joint; An anti-drop chain is provided between the first elastic pin and the steel wire cable, and an anti-drop chain is provided between the second elastic pin and the steel wire cable.

[0011] Preferably, the anti-drop chain is made of a plurality of steel oval rings connected together, and the plurality of steel oval rings are connected together by mutual sleeve connection to form a continuous chain; A connecting ring is arranged between the anti-drop chain and the steel wire rope, one side of the connecting ring is fixedly connected to the anti-drop chain, and the other side is sleeved on the outer wall of the steel wire rope.

[0012] Preferably, the derailment brake valve stem is a hollow cylindrical structure, one end of the derailment brake valve stem is connected to the connecting hose, and the other end is connected to the left joint.

[0013] Preferably, it also includes: an adjustable bracket and a mounting seat; The adjustable bracket is a rectangular structure, and a plurality of through holes are evenly arranged on the adjustable bracket in the vertical direction. The adjustable bracket is arranged on the right side of the top beam, and the mounting seat is arranged on the left side of the top beam. The plurality of circular holes arranged on the adjustable bracket are used to insert the cylindrical fixing pins and the top beam pins; The mounting seat is sleeved on the outer wall of the connecting hose, and the mounting seat is welded and connected to the top beam.

[0014] (III) Beneficial effects The present invention provides a pull-rope type derailment automatic brake device, which can realize the rapid triggering of a derailment brake valve rod through two symmetrically arranged derailment breaking devices when a vehicle derails, so that the train produces emergency brakes, thereby helping to reduce the losses caused by the derailment accident and prevent the accident from further expanding. The structure of the device is relatively simple, and the failure points are reduced and the failure rate is reduced, thereby achieving the purpose of reducing the losses caused by the derailment accident and increasing the safety of the train. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a pull-rope derailment automatic braking device of the present invention is shown; Figure 2 A schematic diagram of the structure of a derailment breaking device in a pull-rope derailment automatic braking device of the present invention is shown; Figure 3 A schematic diagram showing the structure of a steel cable in a pull-rope type derailment automatic braking device of the present invention is shown; Figure 4 A schematic diagram of the structure of a three-way assembly in a pull-rope derailment automatic brake device of the present invention is shown; Figure 5 A schematic diagram of the installation structure of a pull-rope type derailment automatic braking device of the present invention is shown.

[0016] Among them: 1: derailment breaking device; 11: top beam; 12: top beam pin; 13: wire rope; 131: left joint; 132: wire rope end cap; 133: right joint; 14: elastic pin; 15: hexagonal nut; 16: anti-derailment chain; 17: derailment brake valve stem; 2: connecting hose; 3: three-way assembly; 31: main three-way; 32: cut-off valve; 33: derailment vent valve; 34: hose three-way. DETAILED DESCRIPTION

[0017] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by “up”, “down”, “left”, “right”, “inside”, “outside”, “top”, “bottom”, etc. are all based on the directions or positional relationships shown in the accompanying drawings. The purpose is only to facilitate the description of the present invention and simplify the description. It does not indicate or imply that the referred parts must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0019] like Figure 1-5As shown, the present invention provides a pull-rope derailment automatic brake device, comprising: two derailment breaking devices 1 and a three-way assembly 3; The two derailing pull-off devices 1 are symmetrically arranged, and the two derailing pull-off devices 1 are respectively connected to the three-way assembly 3 through the connecting hose 2. A derailing brake valve stem 17 is arranged between the derailing pull-off device 1 and the connecting hose 2. The left end of the derailing brake valve stem 17 is connected to the connecting hose 2 through a hexagonal nut 15, and the right end of the derailing brake valve stem 17 is connected to the derailing pull-off device 1 through the hexagonal nut 15. The derailing brake valve stem 17 is used to be pulled off when a derailment accident occurs, so that the connecting hose 2 is connected to the atmosphere, causing an emergency braking effect on the vehicle.

[0020] The three-way assembly 3 includes: a main pipe tee 31, a cut-off valve 32, a derailment vent valve 33 and a hose tee 34. The two lateral interfaces of the main pipe tee 31 are used to connect the main air duct of the original air brake system of the vehicle. The vertical interface of the main pipe tee 31 is used to add a branch to connect the cut-off valve 32. The cut-off valve 32 is a stainless steel ball valve. The cut-off valve 32 is used to cut off the air path of the brake device when the vehicle derails or the brake device fails. The right end of the cut-off valve 32 is provided with a derailment vent valve 33, and the right end of the derailment vent valve 33 is provided with a hose tee 34. The two ends of the derailment vent valve 33 are connected to the cut-off valve 32 and the hose tee 34 by threads, and the threaded connection is coated with anaerobic glue to ensure that the gas of the derailment vent valve 33 does not leak.

[0021] The two ends of the connecting hose 2 are respectively provided with a conical expansion joint, and the outer wall of the conical expansion joint is provided with a hexagonal nut 15, and the hexagonal nut 15 is used to position the connecting hose 2.

[0022] The derailing breaking device 1 comprises: two elastic pins 14, a top beam 11 and a wire cable 13, wherein the two elastic pins 14 comprise: a first elastic pin and a second elastic pin, and the wire cable 13 is a U-shaped structure, wherein the left end of the wire cable 13 is connected to the left end of the top beam 11, and the right end of the wire cable 13 is connected to the right end of the top beam 11, and the wire cable 13 is used to sleeve the derailing breaking device 1 on the axle, and when the vehicle derails, the axle can be driven to break the derailing brake valve rod 17 provided between the derailing breaking device 1 and the connecting hose 2.

[0023] The top beam 11 is composed of two parts. The left end of the top beam 11 is a rectangular connecting plate, and the right end is a rectangular cross beam. The rectangular connecting plate is vertically arranged, and the rectangular cross beam and the rectangular connecting plate are perpendicular to each other. The rectangular connecting plate and the rectangular cross beam are made into one piece. A circular slot is arranged at the upper end of the rectangular connecting plate, and a connecting hole is arranged at the right end of the rectangular cross beam. A top beam pin 12 is arranged in the connecting hole, and a second elastic pin is inserted in the top beam pin 12. The top beam pin 12 positions the second elastic pin. The two ends of the steel wire cable 13 are respectively provided with steel wire cable heads 132, and the two steel wire cable heads 132 are respectively covered with a left joint 131 and a right joint 133. The left joint 131 is a cylindrical structure, and the outer wall of the left joint 131 is provided with a through hole. The steel wire cable head 132 at the left end is inserted into the left joint 131, and the steel wire cable head 132 at the right end is inserted into the right joint 133. The right joint 133 consists of two parts. The right end of the right joint 133 is a cylindrical structure with a through hole on the outer wall, and the left end is provided with a cylindrical fixing pin on the outer edge. The steel wire cable head 132 is inserted into the cylindrical structure at the right end of the right joint 133, and a first elastic pin is inserted into the cylindrical fixing pin. The first elastic pin positions the cylindrical fixing pin. The left joint 131 is inserted into a circular slot provided on the rectangular connecting plate, and the circular slot limits the left joint 131.

[0024] An anti-drop chain 16 is provided between the first elastic pin and the steel cable 13, and an anti-drop chain 16 is provided between the second elastic pin and the steel cable 13. The anti-drop chain 16 is made of a plurality of steel elliptical rings connected together by mutual socketing to form a continuous chain. A connecting ring is provided between the anti-drop chain 16 and the steel cable 13, one side of the connecting ring is fixedly connected to the anti-drop chain 16, and the other side is sleeved on the outer wall of the steel cable 13. The two anti-drop chains 16 reinforce the connection of the steel cable 13, thereby effectively preventing the steel cable 13 from falling out of the top beam 11.

[0025] The pull-rope derailment automatic brake device further comprises: an adjustable bracket and a mounting seat, the mounting seat being arranged on the left side of the top beam 11, the mounting seat being sleeved on the outer wall of the connection between the connecting hose 2 and the derailment brake valve stem 17, the mounting seat being welded to the top beam 11, and the mounting seat being used to connect the derailment breaking device 1 to the axle; The adjustable bracket is arranged on the right side of the top beam 11. The adjustable bracket is a rectangular structure. A plurality of through holes are evenly arranged vertically on the adjustable bracket. The plurality of circular holes on the adjustable bracket are used to insert the cylindrical fixing pin and the top beam pin 12. By adjusting the position of the cylindrical fixing pin, the inner diameter of the steel cable 13 can be changed to adapt to the sizes of different axles.

[0026] The actual working scenario of a pull-rope derailment automatic brake device is described in detail below.

[0027] In the actual working process, the pull-rope type derailment automatic brake device includes the following steps: Step S1, connecting the main tee 31 in the tee assembly 3 to the main air duct of the original air brake system of the vehicle; Step S2, placing the top beam 11 directly above the vehicle axle, sleeve the steel cable 13 on the outer wall of the vehicle axle, insert the cylindrical fixing pin into the adjustable bracket provided on the top beam 11, and position the cylindrical fixing pin by the first elastic pin; Step S3, connecting the three-way assembly 3 to the derailing breaking device 1 through the connecting hose 2.

[0028] When the railway vehicle is operating normally, the derailing breaking device 1 is sleeved on the axle by the steel cable 13 to maintain a stable state, the connecting hose 2 is connected to the derailing breaking device 1 and the three-way assembly 3 through the conical expansion joint and the hexagonal nut 15 to ensure that the air path is unobstructed, the two horizontal interfaces of the main three-way 31 are connected to the main air duct of the original air brake system of the vehicle, and the vertical interface is connected to the shut-off valve 32, and the shut-off valve 32 is in an open state; When a vehicle derails, the axle will move violently, driving the steel cable 13. The movement of the steel cable 13 will pull the top beam 11, thereby causing the derailment brake valve stem 17 to be subjected to tension. The derailment brake valve stem 17 will be broken after reaching a certain tension, causing the connecting hose 2 to be connected to the atmosphere. At this time, the vehicle's air brake system will quickly exhaust air, triggering emergency braking, so that the vehicle can stop quickly to reduce accident losses.

[0029] It can be understood that the above-mentioned various embodiments mentioned in the present invention can be combined with each other to form a combined embodiment without violating the principle logic. Due to space limitations, the present invention will not go into details.

[0030] Those skilled in the art will appreciate that, in the above method of specific implementation, the order in which the steps are written does not imply a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of the steps should be determined by their functions and possible internal logic.

[0031] The present invention provides a pull-rope derailment automatic brake device, which can quickly trigger a derailment brake valve rod 17 when a vehicle derails through two symmetrically arranged derailment breaking devices 1, so that the train is emergency braked, which helps to reduce the losses caused by the derailment accident and prevent the accident from further expanding. The structure of the device is relatively simple, which reduces the failure points and reduces the failure rate, thereby achieving the purpose of reducing the losses caused by the derailment accident and increasing the safety of the train.

[0032] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A pull-rope derailment automatic brake device, characterized in that: include: Two derailing breaking devices (1) and a three-way assembly (3); The two derailing breaking devices (1) are symmetrically arranged, and the two derailing breaking devices (1) are respectively connected to the three-way assembly (3) via a connecting hose (2), and a derailing brake valve rod (17) is provided between the derailing breaking device (1) and the connecting hose (2); The three-way assembly (3) comprises: a main three-way (31), a cut-off valve (32), a derailment vent valve (33) and a hose three-way (34); A derailment venting valve (33) is provided at the left end of the hose tee (34); one interface of the hose tee (34) is inserted into the derailment venting valve (33); the other two interfaces of the hose tee (34) are each connected to a connecting hose (2); and the hose tee (34) is threadedly connected to the derailment venting valve (33); One end of the derailment vent valve (33) is connected to the derailment vent valve (33), and the other end is provided with a cut-off valve (32), and the left end of the cut-off valve (32) is provided with a main pipe tee (31); The derailing breaking device (1) comprises: two elastic pins (14), a top beam (11) and a steel cable (13); the steel cable (13) is a U-shaped structure; the left end of the steel cable (13) is connected to the left end of the top beam (11), and the right end of the steel cable (13) is connected to the right end of the top beam (11); The two elastic pins (14) include: a first elastic pin and a second elastic pin.

2. The pull-rope derailment automatic brake device according to claim 1, characterized in that: Cone-flared joints are respectively provided at both ends of the connecting hose (2), and a hexagonal nut (15) is provided on the outer wall of the cone-flared joint. The hexagonal nut (15) positions the connecting hose (2).

3. The pull-rope derailment automatic brake device according to claim 2, characterized in that: The top beam (11) is composed of two parts, the left end of the top beam (11) is a rectangular connecting plate, and the right end is a rectangular cross beam, the rectangular connecting plate is vertically arranged, the rectangular cross beam and the rectangular connecting plate are perpendicular to each other, and the rectangular connecting plate and the rectangular cross beam are made as one piece; A circular slot is provided at the upper end of the rectangular connecting plate, a connecting hole is provided at the right end of the rectangular crossbeam, a top beam pin (12) is provided in the connecting hole, a second elastic pin is inserted into the top beam pin (12), and the top beam pin (12) positions the second elastic pin.

4. The pull-rope derailment automatic brake device according to claim 3, characterized in that: The two ends of the steel cable (13) are respectively provided with steel cable heads (132), and the two steel cable heads (132) are respectively covered with a left joint (131) and a right joint (133), and the left joint (131) is a cylindrical structure, and the outer wall of the left joint (131) is provided with a through hole, and the steel cable head (132) at the left end is inserted into the left joint (131), and the steel cable head (132) at the right end is inserted into the right joint (133); The right joint (133) is composed of two parts, the right end is a cylindrical structure with a through hole on the outer wall, and the left end is provided with a cylindrical fixing pin on the outer edge, wherein a first elastic pin is inserted into the cylindrical fixing pin.

5. The pull-rope derailment automatic brake device according to claim 4, characterized in that: The left joint (131) is inserted into a circular slot provided on the rectangular connecting plate, and the circular slot limits the position of the left joint (131); An anti-drop chain (16) is provided between the first elastic pin and the steel cable (13), and an anti-drop chain (16) is provided between the second elastic pin and the steel cable (13).

6. The pull-rope derailment automatic brake device according to claim 5, characterized in that: The anti-drop chain (16) is made of a plurality of steel oval rings connected together, and the plurality of steel oval rings are connected together by mutual sleeve connection to form a continuous chain; A connecting ring is provided between the anti-drop chain (16) and the steel wire rope (13); one side of the connecting ring is fixedly connected to the anti-drop chain (16) and the other side is sleeved on the outer wall of the steel wire rope (13).

7. The pull-rope derailment automatic brake device according to claim 6, characterized in that: The derailing brake valve rod (17) is a hollow cylindrical structure; one end of the derailing brake valve rod (17) is connected to the connecting hose (2), and the other end is connected to the left joint (131).

8. The pull-rope derailment automatic brake device according to claim 7, characterized in that: Also includes: Adjustable brackets and mounts; The adjustable bracket is a rectangular structure, and a plurality of through holes are evenly arranged on the adjustable bracket in the vertical direction. The adjustable bracket is arranged on the right side of the top beam (11), and the mounting seat is arranged on the left side of the top beam (11). The plurality of circular holes arranged on the adjustable bracket are used to insert the cylindrical fixing pins and the top beam pins (12); The mounting seat is sleeved on the outer wall of the connecting hose (2), and the mounting seat is connected to the top beam (11) by welding.

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