Releasing device suitable for door opening and closing mechanism of bottom-opening door vehicle
By designing a device to release the door opening and closing mechanism of bottom-hung door vehicles and using a bumper body and a drive mechanism to protect the vehicle mechanism, the problem of bottom-hung door vehicles being unable to open or close on their own is solved, thus improving unloading efficiency and reducing vehicle damage while achieving safety and cost.
Patent Information
- Application Number
- CN202422718047.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-08
AI Technical Summary
The door opening and closing mechanisms of existing bottom-opening vehicles lack power and cannot open or close automatically. They require cooperation from ground equipment, resulting in low unloading efficiency and possible damage to the vehicle.
A device for releasing the door opening and closing mechanism of a bottom-opening vehicle is designed. The device comprises a bumper body, a wear plate, a spring, a guide rod, a bracket, a drive mechanism, etc. The device is driven electrically, pneumatically or hydraulically to protect the vehicle mechanism from damage.
It realizes low-impact unloading, reduces vehicle damage, is safe to operate, low-cost and easy to use, and is suitable for the opening and closing needs of bottom-opening door vehicles.
Smart Images

Figure CN223372290U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to bulk material loading and unloading equipment for railway vehicles, in particular to a releasing device suitable for a door opening and closing mechanism of a bottom-opening vehicle. Background Art
[0002] Currently, bulk material unloading lines at ports, steel mills, and power plants primarily utilize car dumper systems. To improve unloading efficiency and save costs, some companies on dedicated railway lines have begun replacing conventional open-top railway cars with bottom-opening doors. These cars are equipped with three sets of door opening and closing mechanisms, but these mechanisms lack their own power and are unable to open or close the doors. To achieve this, ground-mounted equipment corresponding to the door opening and closing mechanisms of these cars is required. This mechanism is activated when a vehicle passes, allowing these cars to operate on the unloading line. Therefore, research and development of a release mechanism for these door opening and closing mechanisms is crucial. Summary of the Invention
[0003] The utility model aims to meet the needs of the door opening and closing mechanism of a bottom-opening door vehicle and provide a releasing device for the door opening and closing mechanism of a bottom-opening door vehicle, which is not only scientifically and rationally designed, but also reduces the impact on the door opening and closing mechanism of the bottom-opening door vehicle when unloading, and can achieve the required load during contact, causing little damage to the vehicle, and has the advantages of low cost, safe operation and great convenience in use.
[0004] The purpose of this utility model is achieved by adopting the following technical solutions:
[0005] The bottom-opening door vehicle opening and closing mechanism release device has a base fixed on the ground outside the track, corresponding to the position of the opening and closing mechanism of the bottom-opening door vehicle, and a release device for the opening and closing mechanism is installed on the base. The release device is mainly composed of a bumper body, a wear plate, a spring, a guide rod, a bracket, a base, a driving mechanism, a piston rod, a driving arm, a connecting rod, a spring seat, etc. The bracket and the driving mechanism are installed on the base, the piston rod of the driving mechanism is connected to the driving arm, one end of the connecting rod is connected to the driving arm, and the other end is hinged to the bracket, the lower end of the driving arm is hinged to the base, one end of the spring device is hinged to the bumper body, and the other end of the spring device is hinged to the bracket, and the other side of the bracket is hinged to the base.
[0006] The spring device consists of a spring, a guide rod, a spring seat and a fastener. The upper end of the guide rod is hinged to the bumper body, the lower end of the guide rod passes through the spring seat and is fixed with a fastener, the spring is sleeved on the guide rod, and the spring seat is hinged to the bracket.
[0007] The spring device is tilted to ensure that when the door opening and closing mechanisms of the bottom-opening vehicle cannot be opened, the rollers of the door opening and closing mechanisms can compress the springs and pass over the bumper body, thereby protecting the door opening and closing mechanisms of the bottom-opening vehicle from damage.
[0008] The driving mechanism is an electrical, pneumatic or hydraulic driving mechanism.
[0009] The beneficial effects of the utility model are: its design structure is scientific and reasonable, which not only reduces the impact on the door opening mechanism of the bottom-opening vehicle during unloading, but also can achieve the required load during contact, with little damage to the vehicle, and has the characteristics of low cost, safe operation, and very convenient use. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a schematic diagram of the main structure of a specific embodiment of the utility model in a non-working state;
[0011] Figure 2 This is a schematic diagram of the main structure of the working state of a specific embodiment of the utility model;
[0012] In the figure: 1. bumper body; 2. wear plate; 3. spring; 4. guide rod; 5. bracket; 6. base; 7. drive mechanism; 8. piston rod; 9. drive arm; 10. connecting rod; 11. spring seat; 12. bottom-opening door vehicle bumper. DETAILED DESCRIPTION
[0013] like Figure 1 、 2 It is a specific embodiment of the present utility model, corresponding to the door opening and closing mechanism of the K80 bottom-opening door car, a releasing device for the door opening and closing mechanism of the bottom-opening door car is installed on the outer side of the railway track, a base 6 is fixed on the ground on the left outer side of the track, corresponding to the position of the door opening and closing mechanism of the bottom-opening door car, a releasing device for the door opening and closing mechanism is installed on the base 6, the releasing device is composed of a bumper body 1, a wear plate 2, a spring device, a bracket 5, a driving mechanism 7, and a driving arm 9, a driving mechanism 7 and a bracket 5 of a hydraulic cylinder are installed on the base 6, the driving mechanism 7 is hinged to the driving arm 9 through a piston rod 8, one end of a connecting rod 10 is hinged to the bracket 5, the other end of the connecting rod 10 is hinged to the driving arm 9, the lower end of the driving arm 9 is hinged to the base, one end of the spring device is hinged to the bumper body 1, the other end of the spring device is hinged to the bracket 5, and the right end of the bracket 5 is hinged to the base. Figure 1 The spring device is tilted, and its structure consists of a spring 3, a guide rod 4, a spring seat 11 and a fastener. The upper end of the guide rod 4 is hinged to the bump body 1, and the lower end of the guide rod 4 passes through the spring seat 11 and is fixed with a fastener. The spring 3 is mounted on the guide rod 4, and the spring seat 11 is hinged to the bracket 5.
[0014] The principles and operation of the present utility model are described as follows: The door release device for a bottom-hung vehicle is fixed to the outside of the railway track, corresponding to the position of the vehicle's door opening and closing mechanism. When the vehicle passes through the release device, the vehicle's door opening mechanism opens or closes, and the upper contour of its bumper body is fully compatible with the vehicle's door opening and closing mechanism. The movement of the drive mechanism drives the bumper body up and down. When the bumper of the door opening and closing mechanism is in the raised position, the angle formed by the hinged connection between the connecting rod and the drive arm passes through the swing dead center. At this point, the bumper of the door opening and closing mechanism is fixed, and the drive mechanism is not subjected to force. The spring device in the release device of the vehicle's door opening and closing mechanism is preferably positioned at an angle. This allows the roller of the door opening and closing mechanism to compress the spring and pass over the bumper body if the vehicle's door opening and closing mechanism cannot be opened, thereby protecting the vehicle's door opening and closing mechanism from damage. The above technical measures achieve the objectives of the present utility model.
[0015] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. All technicians familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention based on the technical solution and concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A release device for the door opening and closing mechanism of a bottom-opening vehicle, characterized by: The invention mainly consists of a bumper body (1), a spring device, a bracket (5), a driving mechanism (7), and a driving arm (9). The driving mechanism (7) and the bracket (5) are installed on a base (6). The driving mechanism (7) is hinged to the driving arm (9) through a piston rod (8). One end of a connecting rod (10) is hinged to the bracket (5). The other end of the connecting rod (10) is hinged to the driving arm (9). The lower end of the driving arm (9) is hinged to the base. One end of the spring device is hinged to the bumper body (1), and the other end of the spring device is hinged to the bracket (5).
2. The release device for the door opening and closing mechanism of a bottom-opening vehicle according to claim 1, characterized in that: The spring device is composed of a spring (3), a guide rod (4), a spring seat (11) and a fastener. The spring seat (11) is hinged on the bracket (5). The upper end of the guide rod (4) is hinged to the bumper body (1). The lower end of the guide rod (4) passes through the spring seat (11) and is connected with a fastener. The spring (3) is sleeved on the guide rod (4).
3. The release device for the door opening and closing mechanism of a bottom-opening vehicle according to claim 2, characterized in that: The spring device is inclined.
4. The release device for the door opening and closing mechanism of a bottom-opening vehicle according to claim 1, characterized in that: The driving mechanism (7) is an electrical, pneumatic or hydraulic driving mechanism.
5. The release device for the door opening and closing mechanism of a bottom-opening vehicle according to claim 1, characterized in that: A wear plate (2) is provided on the collision body (1).