CN103507679B

CN103507679B - A kind of LATCH system fixing device

Info

Publication number: CN103507679B
Application number: CN201310432786.XA
Authority: CN
Inventors: 曹旸
Original assignee: JIANGSU LUCKY BABY SAFETY SYSTEM Manufacturing Co Ltd
Current assignee: JIANGSU LUCKY BABY SAFETY SYSTEM Manufacturing Co Ltd
Priority date: 2013-09-23
Filing date: 2013-09-23
Publication date: 2015-11-18
Anticipated expiration: 2033-09-23
Also published as: CN103507679A

Abstract

The present invention relates to a kind of LATCH system fixing device, comprise body frame, shell, stay hook and push button, shell is arranged on body frame, case nose is provided with the opening that can snap in anchor position axle, on the body frame be coupling in shell through stay hook in the middle part of stay hook, push button is arranged at outer casing back, before stay hook, before rear portion is respectively equipped with corresponding opening and push button, rear hook, the slide block of a sliding bearing on body frame is provided with in described shell, be connected through the stagger clamping spring of stay hook axle of telescopic direction between stay hook with slide block, the bayonet socket of a clamping anchor position axle is formed between hook before the anterior and stay hook of slide block, slide block is provided with before shell, rear to hold out against groove, push button holds out against groove connection sliding block through lifting axe cross-under, be connected through holding out against spring between lifting axe with slide block, lifting axe holds out against hook bottom after stay hook, hook upper end and/or rear end push button rounding off and push against push button dorsad after stay hook.Its structure is simple, and easy to use, stable, safety, life-span are long, applicable LATCH system use.

Description

A kind of LATCH system fixing device

Technical field

The present invention relates to a kind of child restraint system fixing device, is a kind of child restrainnt system LATCH system fixing device specifically.

Background technology

LATCH is the abbreviation of " LowerAnchorsandTethersforChildren ", translator of Chinese is " the lower fastener that children use and tether ", from 1 day September in 2002, the car of the U.S.'s just regulation almost all kinds must provide the child safety seat fixed form of LATCH system.More than ISOFIX one of attachment point is linked up with in the LATCH difference maximum with the ISOFIX fixed form of European standard, LATCH and ISO two cover system has two lower interfaces, interface on more than above back seat one, LATCH interface, LATCH interface fixes by three hooks and safety strap.

The connecting device of the existing patent No. a kind of child safety constrained system disclosed in 200920121196.4, adopt buckle clamping automobile attachment point with bayonet, buckle realizes respectively and the locking of automobile attachment point and disengagement under the effect of ejection piece and torsion spring, its weak point is: buckle not locking time ejector member push against on buckle by spring, when buckle locking, ejector member is pushed against by spring in buckle upper notch, spring is in compressive state all the time, long elastic compression makes the original form of spring change, spring easily lost efficacy, connecting device is short for service life, connecting device and for example on patent No. ISOFIX interface disclosed in 201110308038.1, adopts the ratchet of band draw-in groove to realize respectively and the locking of automobile interface and disengagement under the effect of torsion spring and pull bar.The connecting device that above-mentioned two kinds of ISOFIX use, all by pulling ejection piece or pull bar to realize throwing off clamping, must overcome the antagonistic force of spring or torsion spring, pulling effort, operation inconvenience.During as being used in LATCH system, at the non-interface end safety harness of connecting device housing, non-interface end has ejection piece or pull bar to stretch out, affect connecting device structure use and attractive in appearance, as safety harness on ejection piece or pull bar, during belt pull easily and automobile attachment point throw off locking, be not all suitable for the fixing use of LATCH system.

Summary of the invention

For above-mentioned deficiency, the invention provides a kind of structure simple, compact, easy to operate, laborsaving, use stable, safety, life-span long, be applicable to safety strap and automobile attachment point mounts the LATCH system fixing device used.

The technical solution used in the present invention is: a kind of LATCH system fixing device, comprise body frame, shell, stay hook and push button, shell is arranged on body frame, case nose is provided with the opening that can snap in riveting position axle, on the body frame be coupling in shell through stay hook in the middle part of stay hook, push button is arranged at outer casing back, before stay hook, before rear portion is respectively equipped with corresponding opening and push button, rear hook, its technical characterstic is provided with the slide block of a sliding bearing on body frame in described shell, be connected through the stagger clamping spring of stay hook axle of telescopic direction between stay hook with slide block, the bayonet socket of a clamping riveting position axle is formed between hook before the anterior and stay hook of slide block, slide block is provided with before shell, rear to hold out against groove, push button holds out against groove connection sliding block through lifting axe cross-under, be connected through holding out against spring between lifting axe with slide block, lifting axe holds out against hook bottom after stay hook, hook upper end and/or rear end push button rounding off and push against push button dorsad after stay hook.

Further, movable or be fixedly connected with the push shaft that is parallel to lifting axe on described push button, push shaft pushes against hook upper end and/or rear end after stay hook.

Further, the slide block connection that holds out against that described lifting axe is arranged on body frame or slide block through a slip holds out against spring.

Again further, the body frame of described outer casing back is arranged safety with holes.

During connecting device front opening clamping riveting position axle, before riveting position axle promotes stay hook, hook is around stay hook axle Unscrew opening, after stay hook, hook holds out against spring through lifting axe along holding out against groove compression around the rotation of stay hook axle simultaneously, riveting position axle enters in bayonet socket by opening, holding out against reactive spring force drives hook after stay hook to make hook spinning reduction closing openings before stay hook around the rotation of stay hook axle through lifting axe, complete riveting position axle to be connected with the locking of connecting device, now riveting position axle pushes against through clamping spring with slip front in bayonet socket; When connecting device front opening throws off riveting position axle, press push button, push button drive lifting axe along hold out against groove compression hold out against spring make lifting axe throw off with stay hook after the holding out against of hook bottom, after after push button drives push shaft to promote stay hook simultaneously, the rounding off of hook upper end drives stay hook, hook is rotated down around stay hook axle, before stay hook, hook opens opening around stay hook axle, riveting position axle is ejected bayonet socket through slip front by clamping reactive spring force, completes the disengagement of riveting position axle and connecting device.

Adopt above technical scheme, the invention has the beneficial effects as follows: when anchor fitting is fixedly connected with automobile, riveting position axle is connected in bayonet socket, and by front hook and slip front elastic restraint, clamping is stable, firm; When anchor fitting disengagement automobile is fixed, lifting axe disengagement holds out against rear hook, and push shaft promotes stay hook Unscrew opening simultaneously, throws off easy to operate, laborsaving; Clamping spring with hold out against spring and be only fixedly connected with state at anchor fitting and be in deformation state, avoid being in the original form that deformation state causes always and change, effectively can extend anchor fitting service life; Body frame, through safety safety harness with holes, is not connected with safety strap with disengaged part with the fixing locking in shell at body frame, can improve in-use performance and the service life of anchor fitting further, is applicable to LATCH system and uses.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

In figure: riveting position axle 1, body frame 2, shell 3, opening 31, stay hook 4, front hook 41, rear hook 42, bayonet socket 43, stay hook axle 5, slide block 6, clamping spring 7, holds out against groove 8, and lifting axe 9 holds out against spring 10, holds out against slide block 11, push button 12, push shaft 13, safety with holes 14.

Detailed description of the invention

Below in conjunction with drawings and Examples, the invention will be further described.

Shown in Fig. 1, a kind of LATCH system fixing device comprises body frame 2, shell 3, stay hook 4, stay hook axle 5, slide block 6, clamping spring 7, hold out against groove 8, lifting axe 9, hold out against spring 10, hold out against slide block 11, push button 12 and push shaft 13, shell 3 is arranged on body frame 2, and shell 3 front end is provided with the opening 31 that can snap in riveting position axle 1, the body frame 2 of outer casing back is arranged safety with holes 14, be pinned at through stay hook axle 5 in the middle part of stay hook 4 on the body frame in shell, push button 12 is arranged at outer casing back, before stay hook, before rear portion is respectively equipped with corresponding opening and push button, rear hook 41, 42, the slide block 6 of a sliding bearing on body frame 2 is provided with in shell 3, be connected through the stagger clamping spring 7 of stay hook axle of telescopic direction between stay hook 4 with slide block 6, form the bayonet socket 43 of a clamping riveting position axle 1 before the anterior and stay hook of slide block 6 between hook 41, slide block 6 is provided with before shell 3, rear to hold out against groove 8, push button 12 holds out against groove 8 connection sliding block 6 through lifting axe 9 cross-under, be connected through holding out against spring 10 and holding out against slide block 11 between lifting axe 9 with slide block 6, lifting axe 9 holds out against hook 42 bottom after stay hook, hook 42 upper end and/or rear end push button rounding off dorsad after stay hook, movable or be fixedly connected with the push shaft 13 that is parallel to lifting axe on push button 12, push shaft 13 pushes against hook 42 upper end and/or rear end after stay hook.

Claims

1. a LATCH system fixing device, comprise body frame, shell, stay hook and push button, shell is arranged on body frame, case nose is provided with the opening that can snap in riveting position axle, on the body frame be coupling in shell through stay hook in the middle part of stay hook, push button is arranged at outer casing back, before stay hook, before rear portion is respectively equipped with corresponding opening and push button, rear hook, it is characterized in that: in described shell, be provided with the slide block of a sliding bearing on body frame, be connected through the stagger clamping spring of stay hook axle of telescopic direction between stay hook with slide block, the bayonet socket of a clamping riveting position axle is formed between hook before the anterior and stay hook of slide block, slide block is provided with before shell, rear to hold out against groove, push button holds out against groove connection sliding block through lifting axe cross-under, be connected through holding out against spring between lifting axe with slide block, lifting axe holds out against hook bottom after stay hook, hook upper end and/or rear end push button rounding off and push against push button dorsad after stay hook.

2. a kind of LATCH system fixing device according to claim 1, is characterized in that: movable or be fixedly connected with the push shaft that is parallel to lifting axe on described push button, and push shaft pushes against hook upper end and/or rear end after stay hook.

3. a kind of LATCH system fixing device according to claim 1, is characterized in that: the slide block connection that holds out against that described lifting axe is arranged on body frame or slide block through a slip holds out against spring.

4. a kind of LATCH system fixing device according to claim 1, is characterized in that: the body frame of described outer casing back is arranged safety with holes.