Track flat car with automatic parking brake

Abstract

A rail flat car with an automatic parking brake comprises a rail flat car body, two front rail wheels and two rear rail wheels are arranged at the bottom of the rail flat car body, and an automatic parking brake device is further arranged at the bottom of the rail flat car body. In conclusion, when the rail flat car needs to move, the push-pull rod is inserted into the movable pipe, the push-pull rod is pushed forwards, the movable pipe and the connecting plate are pushed by the push-pull rod to rotate around the pin shaft, the connecting plate can pull the two brake cables, the two brake cables pull the lock pin, the working end of the lock pin is separated from the pin hole, and limitation to the rear rail wheel is relieved; only one person is needed to complete the parking requirement of the rail flat car at any time, the whole structure is simple, the cost is low, the braking force is high, the working efficiency is improved, and manpower is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail flatbed vehicles, and in particular relates to a rail flatbed vehicle with an automatic parking brake. Background Art

[0002] At present, rail flatbed vehicles, as a means of transportation, are widely used in rail transportation industries such as subways and high-speed railways, providing convenience for track construction, daily inspections and other work, and reducing the labor intensity of workers. Rail flatbed vehicles are prone to slipping, loss of control and other safety hazards when passing through a sloping track during use, so rail flatbed vehicles are generally equipped with brake devices. However, existing rail flatbed vehicles need to be equipped with two staff members when working, one of whom controls the flatbed vehicle and the other performs brake conversion, which wastes manpower and has problems such as insufficient braking force. Utility Model Content

[0003] The utility model aims to provide a rail flatbed vehicle with an automatic parking brake, so as to solve the technical problems of the existing rail flatbed vehicles, such as the inability of a single person to control the brake, the state conversion of the operation, and the insufficient braking force.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A rail flatbed vehicle with an automatic parking brake comprises a rail flatbed vehicle body, two front rail wheels and two rear rail wheels are arranged at the bottom of the rail flatbed vehicle body, and an automatic parking brake device is also arranged at the bottom of the rail flatbed vehicle body;

[0006] The automatic parking brake device comprises a manual control component and two automatic rebound safety brakes, the two automatic rebound safety brakes are respectively matched with the two rear track wheels, each automatic rebound safety brake comprises a locking pin, a fixing tube and a guide sleeve, the fixing tube is fixed to the bottom of the track flatbed vehicle body by a clamp, and the two ends of the fixing tube are respectively provided with a first retaining ring and a second retaining ring, the inner diameters of the first retaining ring and the second retaining ring are both smaller than the inner diameter of the fixing tube, the guide sleeve is fixed on the second retaining ring, the locking pin is penetrated through the first retaining ring, the second retaining ring, the fixing tube and the guide sleeve, one end of the locking pin is the operating end, and the other end of the locking pin is the working end, and the working end of the locking pin is penetrated outward from the guide sleeve; a compression spring located in the fixing tube is sleeved on the locking pin, a limiting ring plate is arranged on the locking pin, and the two ends of the compression spring are connected to the first retaining ring and the limiting ring plate, and under the elastic force of the compression spring, the limiting ring plate abuts against the second retaining ring;

[0007] The inner side surface of the rear track wheel is evenly distributed with a plurality of pin holes, and all the pin holes are evenly arranged around the axis of the rear track wheel, and the working end of the lock pin of the automatic rebound safety brake is inserted into one of the pin holes of the corresponding rear track wheel;

[0008] The manual control assembly is used for synchronously controlling the pulling of the locking pin operating ends of two automatic rebound safety brakes.

[0009] Furthermore, the working end of the locking pin is frustoconical.

[0010] Furthermore, the manual control assembly includes two sections of brake wire sleeves, a mounting block, a movable tube and a push-pull rod. The mounting block is fixed at the middle position of the rear part of the rail flatbed vehicle body. A notch groove is provided on the mounting block. A connecting plate is fixed to the lower part of the movable tube. The connecting plate is rotatably installed in the notch groove through a pin shaft. The lower end of the push-pull rod can be inserted into the movable tube. An operating handle is provided at the upper end of the push-pull rod. Two wire holes are also provided on the mounting block.

[0011] Two sections of brake wire sleeves are symmetrically installed at the bottom of the rail flatbed car body. Brake wires are inserted into the brake wire sleeves. One end of the two brake wires are respectively connected to the locking pin operating ends of two automatic rebound safety brakes, and the other ends of the two brake wires are inserted into the two wire holes and connected to the connecting plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are: when the rail flatbed car of the utility model needs to be moved, the push-pull rod is inserted into the movable tube, and the push-pull rod is pushed forward. The push-pull rod pushes the movable tube and the connecting plate to rotate around the pin shaft, and the connecting plate can pull the two brake wires, and the two brake wires pull the locking pin, so that the working end of the locking pin is disengaged from the pin hole, and the restriction on the rear rail wheel is released, and the rotation can be resumed. Only one person is needed to complete the parking requirement of the rail flatbed car at any time. The overall structure is simple, the cost is low, the braking force is high, the work efficiency is improved, and manpower is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 This is a structural schematic diagram of a rail flatbed vehicle with an automatic parking brake according to the utility model;

[0015] Figure 2 This is a structural diagram of the automatic rebound safety brake;

[0016] Figure 3 It is a structural schematic diagram of the manual control component;

[0017] Figure 4 is a schematic diagram of the structure of the rear track wheel;

[0018] Figure 5 It is a structural diagram of the installation block;

[0019] Figure 6 This is a schematic diagram of the installation of the movable tube on the mounting block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The present invention is further described in detail below in conjunction with the embodiments.

[0022] A specific embodiment of a rail flatbed vehicle with an automatic parking brake provided by the utility model:

[0023] like Figure 1 As shown, a rail flatbed vehicle with an automatic parking brake comprises a rail flatbed vehicle body 1, two front rail wheels 2 and two rear rail wheels 3 are arranged at the bottom of the rail flatbed vehicle body 1, and an automatic parking brake device is also arranged at the bottom of the rail flatbed vehicle body 1;

[0024] The automatic parking brake device includes a manual control component and two automatic rebound safety brakes 4, such as Figure 2 and Figure 3 As shown, two automatic rebound safety brakes 4 are respectively matched with two rear track wheels 3, each automatic rebound safety brake 4 includes a locking pin 5, a fixing tube 6 and a guide sleeve 7, the fixing tube 6 is fixed to the bottom of the track flatbed car body 1 by a clamp, and the two ends of the fixing tube 6 are respectively provided with a first retaining ring 8 and a second retaining ring 9, the inner diameters of the first retaining ring 8 and the second retaining ring 9 are both smaller than the inner diameter of the fixing tube 6, the guide sleeve 7 is fixed on the second retaining ring 9, the locking pin 5 is penetrated through the first retaining ring 8, the second retaining ring 9, the fixing tube 6 and the guide sleeve 7, one end of the locking pin 5 is the operating end, and the other end of the locking pin 5 is the working end, and the working end of the locking pin 5 is penetrated outward from the guide sleeve 7; a compression spring 10 located in the fixing tube 6 is sleeved on the locking pin 5, and a limiting ring plate 11 is arranged on the locking pin 5, and the two ends of the compression spring 10 are connected to the first retaining ring 8 and the limiting ring plate 11, and under the elastic force of the compression spring 10, the limiting ring plate 11 abuts against the second retaining ring 9;

[0025] like Figure 4 As shown, the inner side surface of the rear track wheel 3 is evenly distributed with a plurality of pin holes 12, and all the pin holes 12 are evenly arranged around the axis of the rear track wheel 3, and the working end of the lock pin 5 of the automatic rebound safety brake 4 is inserted into one of the pin holes 12 of the corresponding rear track wheel 3;

[0026] The manual control assembly is used to synchronously control the pulling of the operating ends of the lock pins 5 of the two automatic rebound safety brakes 4.

[0027] When the rail flatbed vehicle of this embodiment is in operation, the front rail wheel 2 and the rear rail wheel 3 are supported and rolled on the rail, and the automatic rebound safety brake 4 cooperates with the rear rail wheel 3 to complete the braking, wherein the working end of the lock pin 5 passes outward from the guide sleeve 7 and is inserted into the pin hole 12, and the rear rail wheel 3 cannot rotate by virtue of the cooperation between the lock pin 5 and the pin hole 12, and the rail flatbed vehicle cannot move on the rail at this time; when it is necessary to move the rail flatbed vehicle, the operating ends of the two lock pins 5 are synchronously pulled by the manual control component, so that the lock pin 5 moves in the fixed tube 6, and the compression spring 10 is further The lock pin 5 is compressed step by step, and finally the working end of the lock pin 5 is disengaged from the pin hole 12, thereby releasing the restriction on the rear track wheel 3, and the track flatbed vehicle can be pushed to move. When the track flatbed vehicle does not need to be moved, the manual control component is released, and under the elastic force of the compression spring 10, the working end of the lock pin 5 is inserted into the pin hole 12 again. In addition, the device can be further optimized so that the working end of the lock pin 5 can be inserted into the pin hole 12 more smoothly, and the working end of the lock pin 5 is set to a truncated cone shape. The inclined outer surface of the truncated cone has a guiding effect, so that the lock pin 5 can enter the pin hole 12 more easily.

[0028] In addition, in order to realize the above manual control component to synchronously control the two automatic rebound safety brakes 4, as shown in FIG. Figure 3 , Figure 5 and Figure 6 As shown, the manual control assembly of this embodiment includes two sections of brake wire sleeves 13, a mounting block 14, a movable tube 15 and a push-pull rod 16. The mounting block 14 is fixed at the middle position of the rear part of the rail flatbed vehicle body 1. A notch groove 17 is provided on the mounting block 14. A connecting plate 18 is fixed to the lower part of the movable tube 15. The connecting plate 18 is rotatably installed in the notch groove 17 through a pin shaft 19. The lower end of the push-pull rod 16 can be inserted into the movable tube 15. An operating handle 20 is provided at the upper end of the push-pull rod 16. Two wire holes 21 are also provided on the mounting block 14.

[0029] Two sections of brake wire sleeves 13 are symmetrically installed at the bottom of the rail flatbed vehicle body 1. Brake wires 22 are inserted into the brake wire sleeves 13. One end of the two brake wires 22 is respectively connected to the operating ends of the locking pins 5 of the two automatic rebound safety brakes 4, and the other ends of the two brake wires 22 are inserted into the two wire holes 21 and connected to the connecting plate 18.

[0030] When the manual control assembly is not in use, the push-pull rod 16 is not connected to the device and can be placed separately. When it is needed, the push-pull rod 16 is inserted into the movable tube 15, and then the operating handle 20 is pushed forward to make the movable tube 15 rotate around the pin shaft 19. The connecting plate 18 at the lower end of the movable tube 15 pulls the two brake wires 22, and then the two brake wires 22 pull the operating ends of the two locking pins 5, and finally the locking pins 5 are pulled out of the pin holes 12, and the rail flatbed car can move toward the front track, release the operating handle 20, and the locking pin 5 is reinserted into the pin hole 12 under the elastic force of the compression spring 10, and the operating end of the locking pin 5 pulls the brake wire 22, and the brake wire 22 pulls the connecting plate 18, and finally the movable tube 15 is reset.

[0031] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rail flatbed vehicle with automatic parking brake, characterized in that: The utility model comprises a rail flatbed vehicle body, wherein two front rail wheels and two rear rail wheels are arranged at the bottom of the rail flatbed vehicle body, and an automatic parking brake device is also arranged at the bottom of the rail flatbed vehicle body; The automatic parking brake device comprises a manual control component and two automatic rebound safety brakes, the two automatic rebound safety brakes are respectively matched with the two rear track wheels, each automatic rebound safety brake comprises a locking pin, a fixing tube and a guide sleeve, the fixing tube is fixed to the bottom of the track flatbed vehicle body by a clamp, and the two ends of the fixing tube are respectively provided with a first retaining ring and a second retaining ring, the inner diameters of the first retaining ring and the second retaining ring are both smaller than the inner diameter of the fixing tube, the guide sleeve is fixed on the second retaining ring, the locking pin is penetrated through the first retaining ring, the second retaining ring, the fixing tube and the guide sleeve, one end of the locking pin is the operating end, and the other end of the locking pin is the working end, and the working end of the locking pin is penetrated outward from the guide sleeve; a compression spring located in the fixing tube is sleeved on the locking pin, a limiting ring plate is arranged on the locking pin, and the two ends of the compression spring are connected to the first retaining ring and the limiting ring plate, and under the elastic force of the compression spring, the limiting ring plate abuts against the second retaining ring; The inner side surface of the rear track wheel is evenly distributed with a plurality of pin holes, and all the pin holes are evenly arranged around the axis of the rear track wheel, and the working end of the lock pin of the automatic rebound safety brake is inserted into one of the pin holes of the corresponding rear track wheel; The manual control assembly is used for synchronously controlling the pulling of the locking pin operating ends of two automatic rebound safety brakes.

2. A rail flatbed vehicle with automatic parking brake according to claim 1, characterized in that: The working end of the locking pin is frustoconical.

3. A rail flatbed vehicle with automatic parking brake according to claim 2, characterized in that: The manual control assembly includes two sections of brake wire sleeves, a mounting block, a movable tube and a push-pull rod. The mounting block is fixed at the middle position of the rear part of the rail flatbed vehicle body. A notch groove is arranged on the mounting block. A connecting plate is fixed at the lower part of the movable tube. The connecting plate is rotatably installed in the notch groove through a pin shaft. The lower end of the push-pull rod can be inserted into the movable tube. An operating handle is arranged at the upper end of the push-pull rod. Two wire holes are also arranged on the mounting block. Two sections of brake wire sleeves are symmetrically installed at the bottom of the rail flatbed car body. Brake wires are inserted into the brake wire sleeves. One end of the two brake wires are respectively connected to the locking pin operating ends of two automatic rebound safety brakes, and the other ends of the two brake wires are inserted into the two wire holes and connected to the connecting plate.

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