Railway parking anti-slip device

Abstract

The utility model discloses a railway parking anti-slip device. The railway parking anti-slip device comprises a joist installed between two stock rails, one side of the joist is in sliding connection with a sliding frame A, the other side of the joist is in sliding connection with a sliding frame B, the end of one side of the sliding frame B is provided with a frame body, and the frame body is connected with the sliding frame A through two parallel screw rods. The ends, penetrating through the front side end plate of the sliding frame A, of the screws are provided with limiting blocking tables, the sides, penetrating through the front side end plate of the frame body, of the screws are provided with nuts, the portions, located between the front side end plate of the sliding frame A and the front side end plate of the frame body, of the screws are sleeved with spring assemblies, an oil cylinder is arranged in the frame body, and the oil cylinder is installed between the two screws through a flange of the oil cylinder. The telescopic end of the oil cylinder faces the front side end plate of the frame body, a cushion block is arranged between the flange and the front side end plate of the frame body, and the flange is tightly pressed on the end face of the cushion block through a nut. The parking device solves the problems that in the prior art, braking force is weak, and the braking effect of the parking device is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of track safety equipment, in particular to a railway parking anti-slip device. Background Art

[0002] The existing Chinese utility model patent with publication number CN2815803Y and name "A Railway Hydraulic Controllable Parking Device" shows, in combination with the drawings in its disclosed specification, that the plunger cylinder is located between two spring groups, so that installation space for the plunger cylinder has to be reserved between the two spring groups, thereby forcing the distance between the two spring groups to be increased, resulting in force dispersion and weak braking force, which affects the braking effect of the parking device. Utility Model Content

[0003] The utility model aims to provide a railway parking anti-slip device which can improve the braking effect of the parking device in view of the shortcomings of the prior art.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model railway parking anti-slip device is:

[0005] A railway parking anti-slip device comprises a support beam installed between two basic rails, one side of the support beam is slidably connected to a sliding frame A, and the other side of the support beam is slidably connected to a sliding frame B, one end of the sliding frame B is provided with a frame, and the frame is connected to the sliding frame A through two parallel screws, one end of the screw passing through the front end plate of the sliding frame A is provided with a limit stop platform, the side of the screw passing through the front end plate of the frame is provided with a nut, the outer side of the screw between the front end plate of the sliding frame A and the front end plate of the frame is sleeved with a spring assembly, an oil cylinder is provided inside the frame, the oil cylinder is installed between the two screws through its own flange, the telescopic end of the oil cylinder faces the front end plate of the frame, a cushion block is provided between the flange and the front end plate of the frame, and the nut presses the flange tightly against the end face of the cushion block.

[0006] Preferably, the spring assembly is biased toward one side of the joist.

[0007] Preferably, the support beam comprises a bottom plate, a rib plate is provided at the bottom of the bottom plate, and the rib plate and the bottom plate form a T-shape.

[0008] Preferably, a limiting bolt A is provided on one side of the rib plate, and a limiting bolt B is provided on the other side, the sliding frame A is provided with a waist-shaped hole A for the sliding movement of the limiting bolt A, and the sliding frame B is provided with a waist-shaped hole B for the sliding movement of the limiting bolt B.

[0009] Preferably, the spring assembly includes an inner spring sleeved on the outside of the screw rod, an outer spring sleeved on the outside of the inner spring, a positioning boss A is provided on the front end plate of the sliding frame A, and a positioning boss B is provided on the front end plate of the frame. One end of the inner spring contacts the end face of the positioning boss A, and the other end contacts the end face of the positioning boss B. One end of the outer spring is sleeved on the outer peripheral surface of the positioning boss A and contacts the front end plate of the sliding frame A, and the other end is sleeved on the outer peripheral surface of the positioning boss B and contacts the front end plate of the frame.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] 1. The oil cylinder is installed inside the frame, and the distance between the two spring components is reduced, so that the braking force of a single railway parking anti-slip device can be improved, and then the braking effect of the entire parking device can be improved. If the braking effect is the same, the number of railway parking anti-slip devices can be reduced, thereby reducing costs, and the length of the entire parking device can also be shortened, making the structure more compact.

[0012] 2. The spring assembly is biased toward one side of the joist to avoid downward stress on the weakest middle part of the joist when the spring assembly is compressed, thereby increasing the service life of the joist.

[0013] 3. The joist is T-shaped and has high strength, which can prevent the joist from being deformed by downward stress when the spring assembly is under pressure, further improving its service life. No support parts need to be installed at the bottom of the joist, making construction more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the structure of a railway parking anti-slip device.

[0015] Figure 2 It is a structural diagram of the spring assembly.

[0016] Among them, 1 railway parking anti-slip device, 11 supporting beam, 113 limiting bolt A, 114 limiting bolt B, 12 sliding frame A, 121 guide plate A, 122 waist-shaped hole A, 123 front side end plate of sliding frame A, 13 sliding frame B, 131 guide plate B, 132 waist-shaped hole B, 133 frame, 134 front side end plate of frame, 135 positioning boss B, 136 cushion block, 14 screw, 141 limiting stopper, 142 nut, 15 spring assembly, 151 inner spring, 152 outer spring, 16 oil cylinder, 161 flange, 2 basic rail, 21 inner buckle, 3 brake rail. DETAILED DESCRIPTION

[0017] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that these implementation methods are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0018] like Figure 1-2 As shown, a railway parking anti-slip device 1 includes a support beam 11 installed between two basic rails 2. The support beam includes a bottom plate, and a rib plate is integrally formed at the bottom of the bottom plate. The rib plate and the bottom plate form a T shape. The support beam is T-shaped, has high strength, and has a long service life. After the rib plate is clamped into the inner buckle 21, it is directly fastened by a bolt assembly, and there is no need to install a support member at the bottom of the support beam, so the construction is more convenient. The left side of the bottom plate is slidably connected to the sliding frame A12, and the right side is slidably connected to the sliding frame B13. The left side of the rib plate is installed with a limit bolt A113, and the right side is installed Limit bolt B114, guide plates A121 on both sides of the sliding frame A are provided with waist-shaped holes A122 for the limit bolt A to slide, guide plates B131 on both sides of the sliding frame B are provided with waist-shaped holes B132 for the limit bolt B to slide, a frame 133 is welded to the left end of the sliding frame B, the frame is connected to the sliding frame A through two parallel screws 14 symmetrical about the axis of the support beam, the screw passes through one end of the front side end plate 123 of the sliding frame A to form an integral limit stop 141, and the screw passes through one side of the front side end plate of the frame to be threadedly connected to a nut 142 A spring assembly 15 is sleeved on the outer side of the screw rod between the front end plate of the sliding frame A and the front end plate of the frame body. The spring assembly is biased to the left side of the joist to prevent the spring assembly from being subjected to downward stress in the weakest middle part of the joist when it is compressed, thereby further improving the service life of the joist. The spring assembly includes an inner spring 151 sleeved on the outer side of the screw rod, and the outer side of the inner spring is sleeved on the outer side of the outer spring 152. The front end plate of the sliding frame A is welded with a positioning boss A, and the front end plate of the frame body is welded with a positioning boss B135. The left end of the inner spring conflicts with the end face of the positioning boss A. The right end is in contact with the end face of the positioning boss B, the left end of the outer spring is sleeved on the outer peripheral surface of the positioning boss A and is in contact with the front end plate of the sliding frame A, the right end is sleeved on the outer peripheral surface of the positioning boss B and is in contact with the front end plate of the frame, and the cylinder 16 is arranged inside the frame. The cylinder is installed between the two screws through its own flange 161, and the telescopic end of the cylinder faces the front end plate of the frame. A gasket 136 is arranged between the flange and the front end plate of the frame. The gasket is sleeved on the outside of the screw and welded to the front end plate of the frame, and the nut presses the flange tightly against the end face of the gasket.

[0019] The specific working process and principle of a railway parking anti-slip device: by twisting the nut to apply pre-tightening force to the spring assembly, when the wheel enters, the brake rails 3 on both sides are squeezed, at this time the inner and outer springs are compressed, and the inner and outer springs simultaneously provide braking force for the brake rails on both sides to lock the wheels; when the vehicle needs to leave, the oil cylinder is started, the piston rod of the oil cylinder extends out to squeeze the inner wall of the front end plate of the frame, the oil cylinder is subjected to the reaction force and pulls the bolt using the flange, the bolt pulls the sliding frame A to further compress the inner and outer springs, the sliding frames A and B slide inward, and the vehicle can leave after the wheel loses the braking force. After the vehicle leaves, the oil cylinder is unloaded, the piston rod of the oil cylinder is retracted, and the inner and outer springs and the sliding frames A and B are reset. The utility model adjusts the position of the oil cylinder to reduce the distance between the two spring assemblies to increase the braking force, which not only reduces the cost, but also shortens the overall length of the parking device, and is more in line with the use requirements of the railway department. In addition, by adjusting the position of the spring assembly and improving the structure of the support beam, the service life of the support beam is increased, and the installation and construction of the parking device is also convenient.

Claims

1. A railway parking anti-slip device, comprising a joist installed between two stock rails, one side of the joist being slidably connected to a sliding frame A, and the other side of the joist being slidably connected to a sliding frame B, characterized in that: A frame is provided at one end portion of the sliding frame B, and the frame is connected to the sliding frame A through two parallel screws. A limit stop is provided at one end of the screw passing through the front end plate of the sliding frame A, and a nut is provided on one side of the screw passing through the front end plate of the frame. A spring assembly is sleeved on the outer side of the screw between the front end plate of the sliding frame A and the front end plate of the frame. An oil cylinder is provided inside the frame, and the oil cylinder is installed between the two screws through its own flange. The telescopic end of the oil cylinder faces the front end plate of the frame, and a gasket is provided between the flange and the front end plate of the frame, and the nut presses the flange tightly against the end face of the gasket.

2. The railway parking anti-slip device according to claim 1, characterized in that: The spring assembly is biased toward one side of the joist.

3. The railway parking anti-slip device according to claim 2, characterized in that: The supporting beam comprises a bottom plate, a rib plate is arranged at the bottom of the bottom plate, and the rib plate and the bottom plate form a T shape.

4. The railway parking anti-slip device according to claim 3 is characterized in that: A limiting bolt A is arranged on one side of the rib plate, and a limiting bolt B is arranged on the other side. The sliding frame A is provided with a waist-shaped hole A for the sliding movement of the limiting bolt A, and the sliding frame B is provided with a waist-shaped hole B for the sliding movement of the limiting bolt B.

5. The railway parking anti-slip device according to claim 2, characterized in that: The spring assembly includes an inner spring sleeved on the outside of the screw rod, an outer spring sleeved on the outside of the inner spring, a positioning boss A is provided on the front end plate of the sliding frame A, and a positioning boss B is provided on the front end plate of the frame body. One end of the inner spring abuts against the end face of the positioning boss A, and the other end abuts against the end face of the positioning boss B. One end of the outer spring is sleeved on the outer circumferential surface of the positioning boss A and abuts against the front end plate of the sliding frame A, and the other end is sleeved on the outer circumferential surface of the positioning boss B and abuts against the front end plate of the frame body.

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