CN2146508Y - Point lock - Google Patents

Abstract

The utility model relates to a lock for a locking point on a railway line, comprising a main locking hook, a positioning disc, a fastening disc and a positioning pin. The positioning disc and the fastening disc are sheath in the main locking hook, and the front end of the main locking hook is provided with two stages of locking hooks which are matched with trapezoidal threads between the fastening disc and the main locking hook. The back end of the fastening disc is provided with a grab handle by hand, the circumference of the positioning disc and the fastening disc is provided with a plurality of positioning lock holes, and the positioning pin is inserted into the positioning lock hole. The utility model has the advantages of simple structure, light weight, convenient operation and low cost.

Description

Point lock

The utility model relates to a kind of device that is used for locking track switch on the rail track.

Used hook lock device on the existing rail track, form by main latch hook, the fastening disk of positioning disc and alignment pin etc., main latch hook front end is provided with single hook, positioning disc and fastening disk are enclosed within on one's body the hook of main latch hook, positioning disc is provided with 4 location lockholes, fastening disk is provided with 5 lockholes, and fastening disk adopts minor thread to cooperate with the hook body of main latch hook, and this hook lock device is operated inconvenience, heaviness, easily gets rusty and can only be used for small-sized track switch.

The purpose of this utility model provides the hook lock device that a kind of structure is light and handy, easy to use and be difficult for getting rusty.

The purpose of this utility model is achieved in that

By main latch hook, positioning disc, fastening disk and alignment pin constitute the utility model, main latch hook front end has the two-stage latch hook, positioning disc and fastening disk are enclosed within on the main latch hook, positioning disc and main latch hook matched in clearance, fastening disk cooperates with main latch hook trapezoidal thread, the periphery of positioning disc is provided with the location lockhole, the lockhole number is more than 10, handle is held at the rear portion of fastening disk, periphery also is provided with the location lockhole, and its location lockhole number manys two than the location lockhole number on the positioning disc, and alignment pin is inserted in the lockhole of location, and positioning disc and fastening disk are made by rigid plastics.

The utlity model has following advantage:

1. because the front end of main latch hook has the two-stage latch hook, applicable to the locking of various model track switches;

2. owing to cooperate for trapezoidal thread between the hook body of fastening disk and main latch hook and handle is held at the rear portion of fastening disk, then easy to operate rapid, time saving and energy saving;

Since the location lockhole number of positioning disc periphery greater than 10, and the location lockhole number of fastening disc circumference manys two than the location lockhole number of positioning disc periphery, then when hook lock device is locked in the upper semi-circle of two disks, must have two location lockhole eyelets over against, alignment pin is inserted in improved the precision that track switch is locked in this location lockhole.

4. because positioning disc and fastening disk all adopt rigid plastics to make that then this hook lock device structure is light and handy, in light weight.

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

Fig. 2 is that the C of Fig. 1 is to view

Further narrate the utility model below in conjunction with accompanying drawing:

By main latch hook 1, positioning disc 2, fastening disk 3 and alignment pin 4 constitute the utility model, main latch hook 1 front end is provided with the two-stage latch hook, positioning disc 2 and fastening disk 3 are enclosed within on the main latch hook 1, matched in clearance between positioning disc 2 and the main latch hook 1, can slide on one's body at the hook of main latch hook 1, cooperate with trapezoidal thread between fastening disk 3 and the main latch hook 1, the rear portion of fastening disk 3 is provided with holds handle 5, the periphery of positioning disc 2 and fastening disk 3 is equipped with location lockhole 6, the location lockhole number of positioning disc 2 peripheries is more than 10, the location lockhole number of fastening disk 3 peripheries manys two than the lockhole number of positioning disc 2 peripheries, and alignment pin 4 is inserted in the lockhole 6 of location.During use main latch hook 1 front end latch hook is hooked the tongue flange of rail, positioning disc 2 props up the stock rail flange of rail, screws fastening disk 3, inserts in the suitable location lockhole with alignment pin then, thereby makes fastening disk 3 not rotate locking track switch along main latch hook 1.

Claims (1)

1. A kind of hook lock device that is used for locking track switch on the rail track, by main latch hook, positioning disc, fastening disk and alignment pin are formed, positioning disc and fastening disk are enclosed within on the main latch hook, the periphery of positioning disc and fastening disk is equipped with the location lockhole, alignment pin is inserted in the lockhole of location, it is characterized in that: main latch hook front end has the two-stage latch hook, fastening disk is that trapezoidal thread cooperates with main latch hook, fastening disk rear portion is provided with holds handle, the location lockhole number of positioning disc periphery is greater than 10, the location lockhole number of fastening disc circumference manys two than the location lockhole number of positioning disc periphery, and positioning disc and fastening disk are made by rigid plastics.

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