CN2923423Y

CN2923423Y - Car rear-door opening device of self-unloading wagon

Info

Publication number: CN2923423Y
Application number: CN 200720115371
Authority: CN
Inventors: 张峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-16
Filing date: 2007-01-16
Publication date: 2007-07-18
Anticipated expiration: 2017-01-16

Abstract

A self-unloading freight truck carriage backdoor opening device is disclosed. The utility model relates to a carriage backdoor control device, a spline is arranged in the middle part of a main shaft, both two ends are arranged with keyways, the shaft segments of which are cone shaped, a locking hook is connected with the main shaft by bond, both ends of the main shaft are fixed by nuts and connected with the locking hook, the shaft segment between the spline and the keyway consequently punctures the hole on an automobile vertical beam and the hole on a supporting board which is near to the lateral side of the automobile vertical beam, the supporting board is connected with the automobile vertical beam by bolt, a channel steel beam is fixed between two automobile vertical beams, an automatic main pump and an automatic auxiliary pump are installed on the channel steel beam, the shaft end of the automatic main pump is connected with the spline on the main shaft through adjustment arm and the shaft end of the automatic auxiliary pump is connected with the main shaft through a bracket. The utility model based on no change of the original structure of the automobiles uses the automatic air pump cooperated with the main shaft to control the rotation of the locking hook thus to control the opening and closing of the backdoor under the condition of no hydraulic device, therefor the utility model is convenient to control and difficult to detach from the hook.

Description

Apparatus for door-opening behind the self lighting type boxcar

Technical field

The utility model relates to a kind of carriage back door control setup, apparatus for door-opening behind a kind of specifically self lighting type boxcar.

Background technology

The opening device at back door, existing self lighting type boxcar needs the compartment is lifted by hydraulic efficiency gear in use, and simultaneously, the locking bail of bottom, compartment unclamps, and the back door is opened.The control back door is opened inconvenient, and jolts owing to vehicle in transportation, and the compartment backs down the back door under goods gravity, causes the loss of goods in the compartment.

Summary of the invention

The purpose of this utility model is to overcome the weak point that exists in the above-mentioned technology, provides a kind of simple in structure, reasonable in design, and control comfort is controlled freely, apparatus for door-opening behind the self lighting type boxcar that is difficult for unclamping after the locking bail locking.

In order to achieve the above object, the technical solution adopted in the utility model is: the main shaft middle part has spline, the two ends symmetry has keyway, the shaft part of keyway is taper, locking bail connects with main shaft by key, be abutted against with locking bail by nut is fixing at the main shaft two ends, main shaft on the middle shaft part of spline and keyway, be transverse in successively respectively in the hole of automobile vertical beam and the hole near the stay bearing plate in the automobile vertical beam outside in, stay bearing plate and automobile vertical beam bolt join, channel-section steel is fixed between the two automobile vertical beams, be separately installed with automatic main pump and automatic auxiliary pump on it, automatically the axle head of main pump links to each other with spline on the main shaft by adjusting arm, and the axle head of automatic auxiliary pump joins by support and main shaft.

The utility model has the advantages that:

Because the utility model on the basis that does not change the automobile original structure, has adopted automatic tire pump to cooperate main shaft to control the rotation of locking bail, the unlatching of not having control back door under the hydraulic efficiency gear controlled condition again is with closed, and control is convenient, is difficult for breaking off relations.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model locking bail scheme drawing;

Fig. 3 is the utility model supporting plate structure scheme drawing;

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

By Fig. 1-Fig. 3 as can be known, main shaft of the present utility model 1 middle part has spline 12, the two ends symmetry has keyway 10, the shaft part of keyway 10 is taper, locking bail 9 connects with main shaft 1 by key, main shaft 1 two ends are fixed with locking bail 9 by nut 11 and are abutted against, main shaft 1 on the middle shaft part of spline 12 and keyway 10, be transverse in successively respectively in the hole of automobile vertical beam 2 and the hole near the stay bearing plate 8 in automobile vertical beam 2 outsides in, stay bearing plate 8 joins with automobile vertical beam 2 bolts, channel-section steel 3 is fixed between the two automobile vertical beams 2, be separately installed with automatic main pump 4 and automatic auxiliary pump 5 on it, automatically the axle head of main pump 4 links to each other with spline 12 on the main shaft 1 by adjusting arm 6, and the axle head of automatic auxiliary pump 5 joins by support 7 and main shaft 1.

When needs are opened car door, no matter whether the compartment lifts, can come control electromagnetic valve and then control automatic main pump 4 and automatic auxiliary pump 5 by control path, working, it axially extends outward, respectively by adjusting arm 6 and the support 7 common moments of torsion that produce, make main shaft 1 and locking bail 9 rotations, can open carriage back door.

When needs locking car door, come control electromagnetic valve and then control automatic main pump 4 and automatic auxiliary pump 5 by control path, the spring in the pump makes its withdrawal, act on main shaft 1, main shaft 1 and locking bail 9 rotate round about, and be then that tail gate is firmly locked, therefore power is bigger, and locking bail 9 is difficult for breaking away from.

Claims

1. apparatus for door-opening behind the self lighting type boxcar, comprise main shaft, automatic main pump, automatic auxiliary pump, it is characterized in that: main shaft (1) middle part has spline (12), the two ends symmetry has keyway (10), the shaft part of keyway (10) is taper, locking bail (9) connects with main shaft (1) by key, be abutted against with locking bail (9) by nut (11) is fixing at main shaft (1) two ends, main shaft (1) on the middle shaft part of spline (12) and keyway (10), be transverse in successively respectively in the hole of automobile vertical beam (2) and the hole near the stay bearing plate (8) in automobile vertical beam (2) outside in, stay bearing plate (8) joins with automobile vertical beam (2) bolt, channel-section steel (3) is fixed between the two automobile vertical beams (2), be separately installed with automatic main pump (4) and automatic auxiliary pump (5) on it, automatically the axle head of main pump (4) links to each other with spline (12) on the main shaft (1) by adjusting arm (6), and the axle head of automatic auxiliary pump (5) joins by support (7) and main shaft (1).