CN201502230U

CN201502230U - Retractable key

Info

Publication number: CN201502230U
Application number: CN200920210390XU
Authority: CN
Inventors: 王礼胜; 丁静林
Original assignee: Shanghai Huofu Automobile Lock Co Ltd
Current assignee: Shanghai Huofu Automobile Lock Co Ltd
Priority date: 2009-09-29
Filing date: 2009-09-29
Publication date: 2010-06-09
Anticipated expiration: 2019-09-29

Abstract

The utility model relates to the structural field of key handles, in particular to a retractable key. The retractable key comprises a key rod (10) and is characterized by further comprising an upper half casing body (11), a lower half casing body (12), short positioning hinge pins (2), positioning oscillating bars (3), returning springs (4), a base seat (5), an operation sliding block (6), a strength accumulating dragging block (7), a button (8) and an extension spring (9). A groove of the upper half casing body (11) and a groove of the lower half casing body (12) are spliced to form a blind hole, the base seat (5) is embedded inside the blind hole, the key rod (10) is connected to the front end of the base seat (5) via a boss and a positioning hole which are arranged at one end of the key rod, the short positioning hinge pin (2) is respectively fixed at the front end of one side of the base seat and the rear end of the other side of the base seat, one positioning oscillating bar (3) is respectively sleeved on each of the two short positioning hinge pins (2) via the returning springs (4), and the upper portion of the base seat (5) is embedded into the operation sliding block (6). The retractable key has compact structure and convenient utilization.

Description

Telescopic key

Technical field

The utility model relates to the structure field of the shank of the key, is specially a kind of telescopic key.

Background technology

Lock ﹠ key is the safety device of using always, common supporting use.The shank of the key that present key, its structure are generally front end key bar and rear end is fixedlyed connected, and is carved with key bit on the key bar, holds the shank of the key during use and makes key bar insert in the lockhole and rotate, and can unblank.This structure, be fixed between key bar and the shank of the key, and key bar for can insert smoothly lockhole and and the cooperation of lock core, an end is normally pointed, and key bit also is pointed, like this, carry, when placing, pointed termination and profile of tooth are just brought very big inconvenience, not only volume is big, and pointed profile scratches skin, the damage clothing easily.As seen, existing Key structure uses to go up and has deficiency.

Summary of the invention

In order to overcome the defective of prior art, provide that a kind of volume is small and exquisite, easy to use, the key of contour smoothing, the utility model discloses a kind of telescopic key.

The utility model reaches goal of the invention by following technical solution:

A kind of telescopic key, comprise key bar, it is characterized in that: also comprise upper half-shell, housing lower half, the location short pin shaft, the location fork, back-moving spring, pedestal, handle slide block, dilatory piece saves up strength, button and extension spring, all have a groove in upper half-shell and the housing lower half, two grooves piece together a blind hole mutually, pedestal embeds in this blind hole, leave the space between base bottom and the blind hole, the volume in this space is as the criterion key bar all can be inserted, the front end that boss and the locating hole of key bar by an end is connected pedestal, and before the space between base bottom and blind hole, the front end of pedestal one side and the rear end of opposite side are fixed a location short pin shaft respectively, all pass through reseting spring sleeve one location fork on two location short pin shafts, back-moving spring is a torsionspring, the location fork can rotate around the location short pin shaft, the top of pedestal has groove, groove is embedded in the manipulation slide block, handle the length of the length of slide block less than base recess, handling slide block can slide in base recess, extension spring is a cylindrical spring, length when extension spring is lax is less than the length of handling slide block, the dilatory piece that saves up strength is fixed at the two ends of extension spring respectively, extension spring is stretched to and handles slide block and utilizes the dilatory piece that saves up strength to put again after isometric to be embedded in the two ends of handling slide block, the dilatory piece that saves up strength of front end withstands the boss of key bar, respectively there are two catch the rear and front end of handling slide block, two catch of front end and two catch of rear end are positioned at the left and right sides of front end and the left and right sides of rear end separately, a catch of front end is positioned on the location fork of front end, a catch of rear end is positioned on the location fork of rear end, when before and after the manipulation slide bar is in base recess, sliding, the location fork is subjected to the promotion of catch and rotates around the location short pin shaft, removing location, back fork at catch resets under the effect at back-moving spring again, when handling slide bar in the base recess slides forwards, the catch of front end promotes the location fork rotation of front end and withstands the boss of key bar, this moment, the dilatory piece that saves up strength of rear end was kept off by the location fork of rear end, when the manipulation slide bar slides in base recess backward, the location fork of the catch of front end and front end disengages, the location fork of front end turn-off and break away from the boss of key bar under the effect of back-moving spring, the location fork of the save up strength dilatory piece and the rear end of rear end disengages, in the space between key bar withdrawal base bottom and the blind hole, the front end of handling slide block also has a contiguous block that makes progress, and this contiguous block passes upper half-shell and fixes with a knob.

Described telescopic key is characterized in that: the length of handling slide block be base recess length 50%～80%, the length when extension spring is lax is 50%～80% of the length of handling slide block.

When the utility model uses, driving the manipulation slide block by the slip button moves forward and backward, when handling slide bar in the base recess slides forwards, the catch of front end promotes the location fork rotation of front end and withstands the boss of key bar, this moment, the dilatory piece that saves up strength of rear end was kept off by the location fork of rear end, key bar stretches out outside the housing like this, can open lockset.When the manipulation slide bar slides in base recess backward, the location fork of the catch of front end and front end disengages, the location fork of front end turn-off and break away from the boss of key bar under the effect of back-moving spring, the location fork of the save up strength dilatory piece and the rear end of rear end disengages, in the space between key bar withdrawal base bottom and the blind hole, so just dwindled volume, also the key bar that has most advanced and sophisticated profile has been received, both be easy to carry, also avoided infringements such as scuffing human body and object and damage clothing.

The beneficial effects of the utility model are: the result is simply compact, and is small and exquisite attractive in appearance, use and carry all very convenient, to personage's safety.

Description of drawings

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

The structural representation that key bar was pushed out when Fig. 2 was the utility model use;

The structural representation that key bar was retracted when Fig. 3 was the utility model use.

The specific embodiment

Below further specify the utility model by specific embodiment.

Embodiment 1

A kind of telescopic key, comprise upper half-shell 11, housing lower half 12, location short pin shaft 2, location fork 3, back-moving spring 4, pedestal 5, handle slide block 6, dilatory piece 7 saves up strength, button 8, extension spring 9 and key bar 10, as shown in Figure 1, all have a groove in upper half-shell 11 and the housing lower half 12, two grooves piece together a blind hole mutually, pedestal 5 embeds in this blind hole, leave the space between pedestal 5 bottoms and the blind hole, the volume in this space is as the criterion key bar 10 all can be inserted, the front end that boss and the locating hole of key bar 10 by an end is connected pedestal 5, and before the space between pedestal 5 bottoms and blind hole, the front end of pedestal one side and the rear end of opposite side are fixed a location short pin shaft 2 respectively, all pass through back-moving spring 4 covers one location fork 3 on two location short pin shafts 2, back-moving spring 4 is a torsionspring, location fork 3 can rotate around location short pin shaft 2, the top of pedestal 5 has groove, groove is embedded in handles slide block 6, the length of handling slide block 6 be pedestal 5 grooves length 70%, handling slide block 6 can slide in pedestal 5 grooves, extension spring 9 is a cylindrical spring, length when extension spring 9 is lax is 70% of the length of handling slide block 6, the dilatory piece 7 that saves up strength is fixed at the two ends of extension spring 9 respectively, extension spring 9 is stretched to and handles slide block and utilizes the dilatory piece 7 that saves up strength to put again after isometric to be embedded in the two ends of handling slide block 6, the dilatory piece 7 that saves up strength of front end withstands the boss of key bar 10, respectively there are two catch the rear and front end of handling slide block 6, two catch of front end and two catch of rear end are positioned at the left and right sides of front end and the left and right sides of rear end separately, a catch of front end is positioned on the location fork 3 of front end, a catch of rear end is positioned on the location fork 3 of rear end, when before and after manipulation slide bar 6 is in pedestal 5 grooves, sliding, location fork 3 is subjected to the promotion of catch and rotates around location short pin shaft 2, removing location, back fork 3 at catch resets under the effect at back-moving spring again, when handling slide bar 6 in pedestal 5 groove slides forwards, the catch of front end promotes location fork 3 rotations of front end and withstands the boss of key bar 10, this moment, the dilatory piece 7 that saves up strength of rear end was kept off by the location fork 3 of rear end, when manipulation slide bar 6 slides in pedestal 5 grooves backward, the location fork 3 of the catch of front end and front end disengages, the location fork 3 of front end turn-off and break away from the boss of key bar 10 under the effect of back-moving spring 4, the location fork 3 of the save up strength dilatory piece 7 and the rear end of rear end disengages, in the space between key bar 10 withdrawal pedestal 5 bottoms and the blind hole, the front end of handling slide block 6 also has a contiguous block that makes progress, and this contiguous block passes upper half-shell 11 and fixing with a knob 8.

When the utility model uses, driving manipulation slide block 6 by slip button 8 moves forward and backward, when making when opening the lock with the key, as shown in Figure 2, to handle slide bar 6 in pedestal 5 groove slides forwards, then the location fork 3 of the catch of front end promotion front end rotates and withstands the boss of key bar 10, and this moment, the dilatory piece 7 that saves up strength of rear end was kept off by the location fork 3 of rear end, key bar 10 stretches out outside the housing like this, can open lockset.

In the time will regaining key, as shown in Figure 3, in the time of will handling slide bar 6 and in pedestal 5 grooves, slide backward, the location fork 3 of the catch of front end and front end disengages, the location fork 3 of front end turn-off and break away from the boss of key bar 10 under the effect of back-moving spring 4, the location fork 3 of the save up strength dilatory piece 7 and the rear end of rear end disengages, in the space between key bar 10 withdrawal pedestal 5 bottoms and the blind hole.

Claims

1. telescopic key, comprise key bar (10), it is characterized in that: also comprise upper half-shell (11), housing lower half (12), location short pin shaft (2), location fork (3), back-moving spring (4), pedestal (5), handle slide block (6), dilatory piece (7) saves up strength, button (8) and extension spring (9), all have a groove in upper half-shell (11) and the housing lower half (12), two grooves piece together a blind hole mutually, pedestal (5) embeds in this blind hole, leave the space between pedestal (5) bottom and the blind hole, the volume in this space is as the criterion key bar (10) all can be inserted, the front end that boss and the locating hole of key bar (10) by an end is connected pedestal (5), and before being positioned at space between pedestal (5) bottom and the blind hole, the front end of pedestal one side and the rear end of opposite side are fixed a location short pin shaft (2) respectively, all pass through back-moving spring (4) cover one location fork (3) on two location short pin shafts (2), back-moving spring (4) is a torsionspring, location fork (3) can rotate around location short pin shaft (2), the top of pedestal (5) has groove, groove is embedded in handles slide block (6), handle the length of the length of slide block (6) less than pedestal (5) groove, handling slide block (6) can slide in pedestal (5) groove, extension spring (9) is a cylindrical spring, length when extension spring (9) is lax is less than the length of handling slide block (6), the dilatory piece (7) that saves up strength is fixed at the two ends of extension spring (9) respectively, extension spring (9) is stretched to and handles slide block and utilizes the dilatory piece (7) that saves up strength to put again after isometric to be embedded in the two ends of handling slide block (6), the dilatory piece (7) that saves up strength of front end withstands the boss of key bar (10), respectively there are two catch the rear and front end of handling slide block (6), two catch of front end and two catch of rear end are positioned at the left and right sides of front end and the left and right sides of rear end separately, a catch of front end is positioned on the location fork (3) of front end, a catch of rear end is positioned on the location fork (3) of rear end, when before and after manipulation slide bar (6) is in pedestal (5) groove, sliding, location fork (3) is subjected to the promotion of catch and rotates around location short pin shaft (2), removing back location fork (3) at catch resets under the effect at back-moving spring again, when handling slide bar (6) in pedestal (5) groove slides forwards, the location fork (3) that the catch of front end promotes front end rotates and withstands the boss of key bar (10), this moment, the dilatory piece (7) that saves up strength of rear end was kept off by the location fork (3) of rear end, when manipulation slide bar (6) slides in pedestal (5) groove backward, the location fork (3) of the catch of front end and front end disengages, the location fork (3) of front end is turn-off and the boss that breaks away from key bar (10) under the effect of back-moving spring (4), the location fork (3) of the save up strength dilatory piece (7) and the rear end of rear end disengages, in the space between key bar (10) withdrawal pedestal (5) bottom and the blind hole, the front end of handling slide block (6) also has a contiguous block that makes progress, and this contiguous block passes upper half-shell (11) and fixing with a knob (8).

2. telescopic key as claimed in claim 1 is characterized in that: the length of handling slide block (6) be pedestal (5) groove length 50%～80%, the length when extension spring (9) is lax is 50%～80% of the length of handling slide block (6).