CN2740733Y

CN2740733Y - Pedalling door bolt device

Info

Publication number: CN2740733Y
Application number: CN 200420098572
Authority: CN
Inventors: 董慧
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-11-29
Filing date: 2004-11-29
Publication date: 2005-11-16
Anticipated expiration: 2014-11-29

Abstract

The utility model discloses a pedaling door bolt device consisting of a ratchet wheel, a central shaft, a ratchet, an oscillating rod, a retaining claw, a convex-concave wheel, a stepping power rope, a wheel pin, a wheel pin spring, a shell, etc. The ratchet wheel and the convex-concave wheel are uniformly cooperated with the central shaft by means of encasement, one end of the oscillating rod and the central shaft are cooperated with each other by means of encasement, and the other end of the oscillating rod and the stepping power rope are in suspension and hanging type. The wheel pin is a pin whose one end is provided with a pulley, under the action of the wheel pin spring, the pulley of the wheel pin touches and presses on the peripheral surface of the convex-concave wheel. The centre of gyration of the ratchet is on the oscillating rod, and the ratchet and the tooth of the ratchet wheel are in surface contact type. In the gyration of the oscillating rod, the ratchet and the ratchet wheel are of unidirectional synchronous cooperation connection. The retaining claw and the tooth of the ratchet wheel are in surface contact type, and the unidirectional gyration of the ratchet wheel is assured. The shell and a door leaf are fixed, and the two ends of the central shaft are supported in the shell in actively cooperative type. The utility model is suitable for some foot-propelled pins in common occasions, and the pedaling door bolt device can avoid some germ contact transmission.

Description

Foot-operated door-used bolt device

Affiliated technical field

The utility model relates to a kind of bolt device.

Background technology

As everyone knows, come from contagious infection or the many-sided reason of avoiding germ, many people are reluctant to bump the door handle under the public occasions such as grabbing similar hospital.Yet in some cases, people have to again remove to operate these handles with hand.For example, during last public lavatory, no matter the door bolt handle of position, hole, lavatory health whether, what people were helpless will plug door bolt with hand, and reason is in addition not have other method to select for people.For the actual needs that can satisfy people's this respect or needs at heart, it should be popular to people releasing a kind of foot-operated door-used bolt device.

Retrieval according to us finds that the product that has a kind of name to be called " foot-operated door system " at present can be applied to the location of family's room door leaf for people.But, be it and the friction on ground because the location of this product leans on, be not too suitable so fix a door leaf of cheating in similar lavatory with " foot-operated door system " product.

Summary of the invention

The objective of the invention is: release a kind of door bolt of foot-driven type, avoid touching some germina infection that latch brings because of hand under the public arena with this.

A kind of foot-operated door-used bolt device, it is made up of ratchet, central axis, ratchet, fork, non-return claw, torsionspring, convex-concave wheel, pedal force rope, wheel pin, wheel pin spring, fork spring, housing; Ratchet and central axis are the sleeve type stationary fit; The convex-concave wheel is the sleeve type stationary fit with central axis; One end and the central axis of fork are sleeve type movingly, and the other end of fork is hung by the fork spring and draws, its sagging pedal force rope that hangs with; Wheel pin is the latch that an end has roller, presses on the side face of convex-concave wheel at the roller end of the effect lower whorl pin of wheel pin spring; The centre of gyration of ratchet is face by the active force ratchet of its torsionspring with the hook tooth of ratchet and contacts shape on fork, and ratchet and ratchet are the matching relationship that one-way synchronization is arranged in the revolution of fork; The centre of gyration of non-return claw is face by the active force non-return claw of its torsionspring with the hook tooth of ratchet and contacts shape on housing, and guarantees the unidirectional revolution of ratchet; Housing is provided with the fixing hole of fixing with door leaf, and the two ends of central axis are movingly that shape is supported in the housing.

The beneficial effects of the utility model are: people can remove to operate some latches under the public arena with pin, thereby can avoid or reduce the contact transmission of some germs.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the utility model structural representation.

Fig. 2 is the ratchet schematic diagram.

Fig. 3 is that Fig. 2 C--C is to sectional view.

Fig. 4 is a convex-concave wheel schematic diagram.

Fig. 5 is that Fig. 4 D--D is to sectional view.

Fig. 6 is that housing Fig. 7 F--F is to sectional view.

Fig. 7 is that housing Fig. 6 E--E is to sectional view.

Among the figure, 1, ratchet, 2, central axis, 3, ratchet, 4, fork, 5, non-return claw, 6, torsionspring, 7, the convex-concave wheel, 8, pedal force rope, 9, the wheel pin, 10, wheel pin spring, 11, the fork spring, 12, housing.

The specific embodiment

Use equally with common indoor door leaf latch, this device is fixed in the medium position place of door leaf inside height by the fixing hole of its housing (12), and is provided with a pin hole in the corresponding points of doorframe.When people need insert, step on pedal force rope (8) as long as press with pin.Because pedal force rope (8) move down that fork (4) also changes down when elongating fork spring (11), in driving bottom ratchet wheel (1) and central axis (2) and also rotation synchronously of convex-concave wheel (7) of ratchet (3).Like this, make the wheel pin (9) that is in convex-concave wheel (7) concave surface originally in the process of compression wheel pin spring (10), be the convex-concave that excessively arrives that moves horizontally progressively and take turns on the convex surface of (7), like this, the wheel pin (9) that is pushed out then can insert the pin-and-hole of doorframe, finishes the pin door task of foot-propelled with this.After finishing, after people's foot pressure removed, pedal force rope that moves down (8) and fork (4) were returned original position under the effect of fork spring (11) restoring force.Because the directed twisting force of torsionspring (6) is arranged, and non-return claw (5) can effectively be prevented the reverse of returning of ratchet (1), so ratchet (1) and convex-concave are taken turns (7) and still can be rested on the orientation that is rotated after fork (4) reposition.

When needs unplug latch, still available pin is pressed and is stepped on pedal force rope (8), because in the rotation of convex-concave wheel (7), the wheel pin (9) that script one end is in convex-concave wheel (7) convex surface can progressively turn back to the concave surface that convex-concave is taken turns (7) by convex surface under the effect of wheel pin spring (10) elastic force, wheel pin (9) is then extracted out from the pin-and-hole of doorframe.

Claims

1, a kind of foot-operated door-used bolt device is characterized in that: be made up of ratchet, central axis, ratchet, fork, non-return claw, torsionspring, convex-concave wheel, pedal force rope, wheel pin, wheel pin spring, fork spring, housing.

2, foot-operated door-used bolt device according to claim 1 is characterized in that: the convex-concave wheel is the sleeve type stationary fit with central axis.