CN200971905Y

CN200971905Y - Key automatic locking safety device

Info

Publication number: CN200971905Y
Application number: CN 200620140236
Authority: CN
Inventors: 庄成荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-11-20
Filing date: 2006-11-20
Publication date: 2007-11-07
Anticipated expiration: 2016-11-20

Abstract

The utility model belongs to the instrument technique territory, in particular relates to a keystrokeself locking safety system which needs a steel needle to fix a small scale instrument on an object to avoid from flopping. The utility model aims to supply a keystroke belt self locking safety system for solving the defect[w2]s that the existing keystroke with steel needle can not be locked personally. The utility model comprises a keystroke bracket, a key stoke, a steel needle fixed seat, a key stoke, a replacement spring, a steel needle, a steel ball, a location spring, a fixed screw and a locknut, wherein, the keystroke and the steel needle fixed seat are joined and fixed together, the keystroke relative to the steel needle fixed seat can do relative turn, the location spring and the location steel ball are arranged between the keystroke and the steel needle fixed seat, the shape of the keystroke and the steel needle fixed seat are both oval, an oval hole coordinating with the keystroke and the steel needle fixed seat is arranged on the keystroke seat, the keystroke and the steel needle fixed seat are arranged in the oval hole of the keystroke seat and can do up and down movement in the hole, the replacement spring is arranged between the steel needle fixed seat and the keystroke bracket.

Description

Self-locking safety device for keys

Technical field

The utility model belongs to technical field of tools, and particularly a kind of need various miniature instruments being fixed on draw point makes it can not drop on the object, simultaneously also can draw point not stretched out stab the Self-locking safety device for keys of finger etc. when not using owing to misoperation.

Background technique

Often needing Other Instruments such as spirit level, routing instrument to be fixed in operation process such as house decoration, maintenance, article installation uses on wall or other object, this work generally is that the button that one or two band draw point is set on instrument is finished, and the button of present this band draw point all can not self-locking, damages so be easy to finger waited.

Summary of the invention

The utility model at the button of existing band draw point all can not self-locking unsafe factor, the safety installations of a kind of button band self-locking is provided, thereby guarantees that the user can not occur owing to the situation that misoperation not stabbed finger.

The technical solution adopted in the utility model is finished in the following way: this Self-locking safety device for keys comprises button carriage, key base, draw point fixed base, button, Returnning spring, draw point, steel ball, retaining spring, retaining screw, lock nut, wherein, Self-locking safety device for keys is contained on the instrument by button carriage and key base; Draw point is fixed on the draw point fixed base; Button and draw point fixed base connect by retaining screw and lock nut and are fixed together, button can relatively rotate around the axis of retaining screw with respect to the draw point fixed base, be provided with two retaining springs and two positioning balls between button and the draw point fixed base, on the draw point fixed base, be provided with four shrinkage pools that match with positioning ball, four shrinkage pools distribute with 90 ° of angles, thereby the relative draw point fixed base of button revolution is crossed an accurately location are just arranged; Button and draw point fixed base profile are ellipse, are provided with the slotted eye that matches with button and draw point fixed base on key base, and button and draw point fixed base are contained in the slotted eye of key base and can move up and down in the hole; Returnning spring is contained between draw point fixed base and the button carriage, is used for the Self-locking safety device for keys end-of-job draw point fixed base is resetted, and makes in the draw point indentation instrument.

During use, when button turns to when consistent with elliptical aperture direction on draw point fixed base and the key base, press button downwards, button and draw point fixed base and draw point can together move down, and are used for pricking in wall or other object, and instrument is fixed.

When instrument does not need draw point fixedly, as long as rotate button, elliptical aperture on oval button and the key base is misplaced 90 °, retaining spring and the positioning ball that be arranged between positive stop key and the draw point fixed base this moment make its location, when pressing button downwards again, because being stuck on instrument and the key base, the oval two ends of button bottom can not move down, draw point on the draw point fixed base that connects also can not moved down expose chi external, thereby guarantee that the user can not occur owing to the situation that misoperation not stabbed finger.

The utility model is compared with the existing band draw point button that is located on the miniature instrument, has to have the self locking safety apparatus features on button, thereby guarantees that the user can not stab the situation appearance of finger owing to misoperation.

Description of drawings

Fig. 1 is the structural representation of Self-locking safety device for keys.

Fig. 2 is the schematic representation of Self-locking safety device for keys under self-locking state.

Fig. 3 is the schematic representation of Self-locking safety device for keys under in working order.

Embodiment

Contrast accompanying drawing below, the utility model is described in further detail by embodiment.

With reference to accompanying drawing 1 to accompanying drawing 3, a kind of Self-locking safety device for keys, it comprises button carriage 2, key base 3, draw point fixed base 4, button 5, Returnning spring 6, draw point 7, steel ball 8, retaining spring 9, retaining screw 10, lock nut 11, wherein, Self-locking safety device for keys is contained on the instrument 1 by button carriage 2 and key base 3; Draw point 7 is fixed on the draw point fixed base 4; Button 5 and draw point fixed base 4 connect by retaining screw 10 and lock nut 11 and are fixed together, button 5 can relatively rotate around the axis of retaining screw 10 with respect to draw point fixed base 4, be provided with two retaining springs 9 and two positioning balls 8 between button 5 and the draw point fixed base 4, on draw point fixed base 4, be provided with four shrinkage pools that match with positioning ball 8, four shrinkage pools distribute with 90 ° of angles, thereby make button 5 relative draw point fixed base 4 revolutions cross 90 ° an accurately location are just arranged; Button 5 and draw point fixed base 4 profiles are ellipse, are provided with the slotted eye that matches with button 5 and draw point fixed base 4 on key base 3, and button 5 and draw point fixed base 4 are contained in the slotted eye of key base 3 and can move up and down in the hole; Returnning spring 6 is contained between draw point fixed base 4 and the button carriage 2, is used for the Self-locking safety device for keys end-of-job draw point fixed base 4 is resetted, and makes in the draw point 7 indentation instruments 1.

During use, when button 5 turns to when consistent with elliptical aperture direction on draw point fixed base 4 and the key base 3, press button 5 downwards, button 5 can together move down with draw point fixed base 4 and draw point 7, is used for pricking in wall or other object, and instrument 1 is fixed.

Claims

1, a kind of Self-locking safety device for keys, it is characterized in that this Self-locking safety device for keys comprises button carriage (2), key base (3), draw point fixed base (4), button (5), Returnning spring (6), draw point (7), steel ball (8), retaining spring (9), retaining screw (10), lock nut (11), wherein, Self-locking safety device for keys is contained on the instrument (1) by button carriage (2) and key base (3), draw point (7) is fixed on the draw point fixed base (4), button (5) and draw point fixed base (4) connect by retaining screw (10) and lock nut (11) and are fixed together, button (5) can relatively rotate around the axis of retaining screw (10) with respect to draw point fixed base (4), be provided with retaining spring (9) and positioning ball (8) between button (5) and the draw point fixed base (4), on draw point fixed base (4), be provided with four shrinkage pools that match with positioning ball (8), four shrinkage pools distribute with 90 ° of angles, button (5) and draw point fixed base (4) profile are ellipse, on key base (3), be provided with the slotted eye that matches with button (5) and draw point fixed base (4), button (5) and draw point fixed base (4) are contained in the slotted eye of key base (3) and can move up and down in the hole, and Returnning spring (6) is contained between draw point fixed base (4) and the button carriage (2).

2, Self-locking safety device for keys according to claim 1 is characterized in that being provided with between button (5) and the draw point fixed base (4) two retaining springs (9) and two positioning balls (8).