CN202039659U

CN202039659U - Clutch for lock

Info

Publication number: CN202039659U
Application number: CN2011200410351U
Authority: CN
Inventors: 柳小勇; 殷雄雄
Original assignee: ZHEJIANG ZHONGHENG LOCK INDUSTRIAL Co Ltd
Current assignee: ZHEJIANG ZHONGHENG LOCK INDUSTRIAL Co Ltd
Priority date: 2011-02-17
Filing date: 2011-02-17
Publication date: 2011-11-16
Anticipated expiration: 2021-02-17

Abstract

The utility model relates to a clutch for a lock, the clutch is characterized by comprising a clutch inner ring and a clutch outer ring, the clutch inner ring can be relatively rotatably installed in the clutch outer ring, the clutch outer ring is provided with a clutch pin and a return spring, the radial direction of the clutch inner ring is provided with a slot, the clutch pin can be inserted into the slot in a resetting way. Two end surfaces of the clutch are respectively connected with an inner handle and an outer handle, when the clutch inner ring and the clutch outer ring are in an engagement state, the outer handle is rotated to smoothly rotate the clutch outer ring, thereby driving a dead bolt to telescope; when the clutch inner ring and the clutch outer ring are in an disengagement state, the outer handle is rotated and the clutch outer ring can not be rotated, the clutch inner ring performs an idle running, effectively taking an antitheft effect, and preventing lawless persons from malicious destruction.

Description

A kind of lock clutch

Technical field

The utility model relates to the component of door lock, and play and unblank and antitheft effect, specifically be a kind of lock clutch.

Background technology

The general inside and outside handle of door lock is the open and close door parts of rotational lock directly, but under particular environment,, wish that outer handle separates with the switch block of lock body in order to prevent the unlatching of the destroyed property of door, even rotate outer handle, door can not be opened.Outer handle can only be idle running, is exactly that outdoors ruffian destroys outer handle fully, and dead bolt still can not be unlocked, and door still closes, and has improved the safety in lock body and the room.Therefore, lock clutch just arises at the historic moment.

The utility model content

The utility model provides a kind of lock clutch, can effectively play anti-theft effect, and is rational in infrastructure, not fragile.

For this reason, the utility model is taked following technical scheme: a kind of lock clutch, it is characterized in that comprising clutch inner ring and clutch outer ring, described clutch inner ring can be packed in the clutch outer ring in relative rotation, described clutch is equipped with on-of pin and back-moving spring on the outer ring, described clutch inner ring radially be provided with slot, in the insertion slot that described on-of pin can reset.After on-of pin inserts slot, be about to the clutch inner ring and be connected, rotate the clutch inner ring this moment and drive the rotation of clutch outer ring in the lump with the clutch outer ring.When on-of pin does not insert slot, this moment, clutch inner ring and clutch outer ring were separated, and rotated the clutch inner ring separately, and the clutch outer ring can not be rotated, the idle running of clutch inner ring.

Form outer handle patchhole on the outer face of described clutch inner ring, described clutch outer ring simultaneously forms and can hold the groove that the clutch inner ring is inserted, and another side forms interior handle patchhole.Interior handle patchhole on interior handle and the clutch outer ring joins, and handle can directly rotate the clutch outer ring in rotating, no matter whether clutch of clutch inner ring and clutch outer ring.Outer handle links to each other with outer handle patchhole on the clutch inner ring, has only after on-of pin inserts the slot of clutch inner ring, rotates that outer handle could drive the clutch inner ring and rotate together the clutch outer ring.

Form projection on the described clutch inner ring, be provided with the arc positive stop strip of the described projection of backstop in the described clutch outer ring.Utilize the idle running scope of arc positive stop strip restriction clutch inner ring, prevent lawless person's malicious sabotage.

The corresponding slot with the clutch inner ring in described clutch outer ring forms a up-narrow and down-wide through hole, described on-of pin and back-moving spring are set in the through hole, the bottom of through hole is provided with cap liner, form the catch that offsets with described cap liner on the on-of pin, the diameter of catch is greater than the bore of narrower place through hole, so catch is limited in the through hole of bore broad, guarantee on-of pin normal reset movement in through hole.

Clutch both ends of the surface of the present utility model are joined with interior handle and outer handle respectively, when clutch inner ring and clutch outer ring are in interlocking pattern, rotates outer handle rotation clutch outer ring smoothly, and then the drive dead bolt stretch; When clutch inner ring and clutch outer ring were in disengaged position, rotating outer handle clutch outer ring can not be rotated, and the clutch inner ring dallies, and effectively plays anti-theft effect, can also prevent lawless person's malicious sabotage.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model sectional structure schematic diagram;

Among the figure: 1. handle patchhole 8. projections 9. positive stop strips 10. through holes 11. cap liners 12. catch in the outer handle patchholes 7. of clutch inner ring 2. clutch outer rings 3. on-of pins, 4. back-moving springs, 5. slots 6..

The specific embodiment

A kind of lock clutch shown in Fig. 1-2, comprise clutch inner ring 1 and clutch outer ring 2, clutch inner ring 1 can be packed in the clutch outer ring 2 in relative rotation, clutch inner ring 1 radially be provided with slot 5, clutch outer ring 2 corresponding slots 5 with clutch inner ring 1 form a up-narrow and down-wide through hole 10, on-of pin 3 and back-moving spring 4 are set in the through hole 10, and the bottom of through hole 10 is provided with cap liner 11, forms the catch 12 that offsets with cap liner 11 on the on-of pin 3.Reseting spring sleeve 4 is put on on-of pin 3 and is positioned at the cavity of through hole 10 bottom broads, and the diameter of catch 12 is greater than the bore of narrower place through hole 10.Form outer handle patchhole 6 on the outer face of clutch inner ring 1, clutch outer ring 2 one sides form can hold the groove that clutch inner ring 1 is inserted, and another side forms interior handle patchhole 7.Outer handle patchhole 6 connects outer handle, handle in interior handle patchhole 7 connects.Also form projection 8 on the clutch inner ring 1, be provided with the arc positive stop strip 9 of backstop projection 8 in the groove of clutch outer ring 2.

When clutch inner ring and clutch outer ring are in interlocking pattern, rotate outer handle and could rotate the clutch outer ring smoothly, and then it are flexible to drive dead bolt; When clutch inner ring and clutch outer ring were in disengaged position, rotating outer handle clutch outer ring can not be rotated, and the clutch inner ring dallies, and effectively plays anti-theft effect, can also prevent lawless person's malicious sabotage.

Claims

1. lock clutch, it is characterized in that comprising clutch inner ring (1) and clutch outer ring (2), described clutch inner ring (1) can be packed in the clutch outer ring (2) in relative rotation, on-of pin (3) and back-moving spring (4) are housed on the described clutch outer ring (2), described clutch inner ring (1) radially be provided with slot (5), in the insertion slot (5) that described on-of pin (3) can reset.

2. a kind of lock clutch according to claim 1, it is characterized in that forming on the outer face of described clutch inner ring (1) outer handle patchhole (6), described clutch outer ring (2) one side forms can hold the groove that clutch inner ring (1) is inserted, and another side forms interior handle patchhole (7).

3. a kind of lock clutch according to claim 2 is characterized in that described clutch inner ring (1) upward forms projection (8), is provided with the arc positive stop strip (9) of the described projection of backstop (8) in the described clutch outer ring (2).

4. according to claim 1 or 3 described a kind of lock clutch, it is characterized in that the corresponding slot (5) with clutch inner ring (1) in described clutch outer ring (2) forms a up-narrow and down-wide through hole (10), described on-of pin (3) and back-moving spring (4) are set in the through hole (10), the bottom of through hole (10) is provided with cap liner (11), and on-of pin (3) is gone up and formed the catch (12) that offsets with described cap liner (11).