CN201318078Y

CN201318078Y - Door lock for machinery compartment

Info

Publication number: CN201318078Y
Application number: CN 200820180806
Authority: CN
Inventors: 孔德瑾
Original assignee: Taiyuan Railway Transportation Equipment Co Ltd
Current assignee: Taiyuan Railway Transportation Equipment Co Ltd
Priority date: 2008-12-08
Filing date: 2008-12-08
Publication date: 2009-09-30
Anticipated expiration: 2018-12-08

Abstract

The utility model relates to a door lock for a machinery compartment, which belongs to the vehicle door lock, and solves the problems that the structure of the prior vehicle door lock is complex and the use is inconvenient. The door lock comprises a lock rod, a lock core and a lock body bottom plate; wherein the U-shaped lock rod is fixed on a door frame, the lock body bottom plate is fixed on the door board, two mounting seats are arranged on the lock body bottom plate in parallel, a lower fixing pin is arranged at the lower ends of the mounting seats, a locating lever which can rotate and slide relative to the lower fixing pin is covered on the lower fixing pin, a compression spring is covered on the locating lever, the upper end of the locating lever is connected with the lower end of the lock core through a rotating pin, the two ends of the rotating pin are inserted into a triangular limiting frame arranged on the mounting seats, an upper fixing pin is arranged at the upper ends of the mounting seats, the lock core which can rotate and slide relative to the upper fixing pin is covered on the upper fixing pin, and a U-shaped groove which can be clipped on the lock rod is formed at the upper end of the lock core. The door lock has the advantages that the structure is simplified, the automatic locking performance is added, the door lock can not make relative motion, thereby reducing the noise; the structure is compact, and the maintenance is convenient.

Description

Machinery compartment door lock

Technical field

The utility model belongs to door lock for vehicle, is specifically related to a kind of machinery compartment door lock.

Background technology

The problem and the shortcoming of domestic existing door lock for vehicle mechanism:

1, domestic existing door lock for vehicle mechanism is structurally loaded down with trivial details, installs and inconvenience when using.

2, can not realize automatic locking after domestic existing door lock for vehicle mechanism closes, door lock and doorframe have mutual collision phenomenon.

3, domestic existing door lock for vehicle mechanism is installed on the door-plate plane, and it is big to take up room, and the outward appearance manufacturability is not good enough, and maintenance is inconvenient.

Summary of the invention

The utility model provides door lock between a kind of novel machine in order to solve existing loaded down with trivial details, the inconvenient problem with use of door lock for vehicle structure.

The utility model adopts following technical scheme to realize:

Machinery compartment door lock, it comprises locking bar, lock core and lock bottom plate, the locking bar that it is characterized in that U-shaped is fixed on the doorframe, lock bottom plate is fixed on the door-plate, two mount pads be arranged in parallel on the lock bottom plate, the mount pad lower end is provided with down steady pin, the sheathed backstay that rotates to it and slide on the following steady pin, sheathed compression spring on the backstay, the backstay upper end connects the lock core lower end by rotational pin, and the rotational pin two ends are interspersed in the triangle limitting casing of offering on the mount pad, and the mount pad upper end is provided with steady pin, the sheathed lock core that rotates to it and slide on the last steady pin, the lock core upper end has the U-shaped groove that can be stuck on the locking bar.

Strip through-hole is offered in the backstay lower end, and strip through-hole is also offered in the lock core upper end.

Postrotational two extreme positions of lock core of the present utility model, combination power adopt the dead point principle to make door latch structure optimization, simplification, and are easy to install.The utility model is selected a compression spring for use in addition, all produces active force at two extreme positions, and door all is in stationary state under door lock portion's elastic force effect within it after closing and opening.Reduce the utility model position that takes up room, overall appearance optimization, and the mode of opening the door has adopted the mode on the indoor equipment, structurally further simplifies the structure.

The utlity model has following beneficial effect:

1, overall dimensions reduces, designs simplification.

2, door lock has increased the automatic locking performance, and it is moving relatively that door lock is not had, and has reduced noise to a certain extent.

3, designs simplification.Compactness, easy to maintenance.

Description of drawings

Fig. 1 is a structural representation of the present utility model

Fig. 2 is the lateral view of Fig. 1

Among the figure: the 1-locking bar, the 2-lock core, the 3-lock bottom plate, the 4-mount pad, 5-compresses spring, 6-backstay, 7-limitting casing, the last steady pin of 8-, steady pin under the 9-, 10-rotational pin, 11-doorframe, 12-door-plate

The specific embodiment

In conjunction with the accompanying drawings the specific embodiment of the present utility model is described further.

A kind of machinery compartment door lock, it comprises locking bar 1, lock core 2 and lock bottom plate 3, the locking bar 1 that it is characterized in that U-shaped is fixed on the doorframe 11, lock bottom plate 3 is fixed on the door-plate 12, two mount pads 4 be arranged in parallel on the lock bottom plate 3, mount pad 4 lower ends are provided with down steady pin 9, the sheathed backstay that rotates to it and slide 6 on the following steady pin 9, sheathed compression spring 5 on the backstay 6, backstay 6 upper ends connect lock core 2 lower ends by rotational pin 10, rotational pin 10 two ends are interspersed in the triangle limitting casing of offering on the mount pad 47, mount pad 4 upper ends are provided with steady pin 8, the sheathed lock core that rotates to it and slide 2 on the last steady pin 8, lock core 2 upper ends have the U-shaped groove that can be stuck on the locking bar 1.Strip through-hole is offered in backstay 6 lower ends, and following steady pin is through in it.Strip through-hole is also offered in lock core 2 upper ends, and last steady pin is through in it.

Claims

1, a kind of machinery compartment door lock, it comprises locking bar (1), lock core (2) and lock bottom plate (3), the locking bar (1) that it is characterized in that U-shaped is fixed on the doorframe (11), lock bottom plate (3) is fixed on the door-plate (12), two mount pads (4) be arranged in parallel on the lock bottom plate (3), mount pad (4) lower end is provided with down steady pin (9), following steady pin (9) is gone up the sheathed backstay that rotates to it and slide (6), backstay (6) is gone up sheathed compression spring (5), backstay (6) upper end connects lock core (2) lower end by rotational pin (10), rotational pin (10) two ends are interspersed in the triangle limitting casing of offering on the mount pad (4) (7), mount pad (4) upper end is provided with steady pin (8), last steady pin (8) is gone up the sheathed lock core that rotates to it and slide (2), and lock core (2) upper end has the U-shaped groove that can be stuck on the locking bar (1).

2, machinery compartment door lock according to claim 1 is characterized in that described backstay (6) lower end offers strip through-hole, and strip through-hole is also offered in lock core (2) upper end.