Railway wagon body and bottom door locking mechanism thereof

Abstract

The invention provides a railway wagon body and a bottom door locking mechanism, wherein the bottom door locking mechanism can improve the bottom door locking reliability, is flexible and convenient to operate, and reduces time and effort. The bottom door locking mechanism comprises a rotating shaft extending from front to back, a plurality of locking members arranged on the rotating shaft, and a handle connected with the rotating shaft, and further comprises a supporting member, wherein the handle extends upward obliquely from the inside out in the transverse direction; the lower end of the handle is fixedly connected with the rotating shaft; the upper end of the handle can rotate around the lower end, so as to drive the rotating shaft to drive each of the locking members to lock or unlock the corresponding bottom doors; when the handle is rotated up to a first predetermined position, the locking members are driven to lock the bottom doors, the supporting member can support the handle, to overcome gravity of the handle and lock the handle. No strict cooperation relation exists between the supporting member and the handle, even if the rotating shaft is deformed due to long-time use, the positioning reliability of the handle also can be ensured, so as to ensure the locking reliability of the bottom doors.

Description

Technical field [0001] The invention relates to the technical field of railway transportation, in particular to a car body of a railway freight car and a bottom door locking mechanism thereof. Background technique [0002] At present, with the development of the field of freight transportation, a hopper-type railway wagon, referred to as a hopper car, specially used for transporting grain, ore, coal and other bulk goods has been formed. [0003] Please refer to figure 1 with figure 2 , figure 1 It is a cross-sectional view of a hopper-type railway freight car in a specific implementation in the prior art; figure 2 It is a cross-sectional view of a hopper-type railway freight car in another specific embodiment in the prior art. [0004] Taking a grain truck as an example, the hopper-type railway freight car in the prior art has a car body for carrying goods, and the bottom of the car body is usually provided with several hoppers 01 for unloading goods, such as figure 1 with figure ...

AI Technical Summary

Problems solved by technology

[0012] On the one hand, after long-term use, the rotating shaft will be deformed, which will cause a certain eccentric distance between the handle 010 and the pin hole on the lock seat, so that the lock pin cannot lock the handle 010; when the lock of the handle 010 is unreliable , due to the influence of external factors such as vehicle vibration, it is likely to cause the rotation of the rotating shaft, resulting in unreliable locking of the bottom door 02.

[0013] On the other hand, when the rotating shaft rotates clockwise, the operator needs to manually judge whether the locking member 05 is separated from the driving gear 03. In practice, the operator usually rotates an excessive angle to ensure that the locking member 05 is in contact with the driving gear. 03 Complete separation; however, this method of increasing the rotation angle will cause damage to the locking mechanism itself, thereby reducing the reliability of the locking mechanism and shortening the service life of the locking mechanism

[0014] Moreover, the rotating shaft is set through the shaft seat 09, which is prone to longitudinal movement during use, which reduces the reliability of use; the handle 010 is arranged at the funnel 01, so that the operating space is small, which is not conducive to operation; the shaft seat 09 and There is a hard contact between the rotating shafts, which will wear out during long-term use, shortening the service life of the rotating shafts

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