CN2484830Y

CN2484830Y - Railing with self shutting device

Info

Publication number: CN2484830Y
Application number: CN 01235918
Authority: CN
Inventors: 李绍汉
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-05-21
Filing date: 2001-05-21
Publication date: 2002-04-10
Anticipated expiration: 2011-05-21

Abstract

A guide rail with automatic closed device is a mechanical guide rail of drawer, including a movable rail, a fixed track, a bearing with a rack and an automatic closed device, wherein, the automatic closed device includes a swing core axis with tip, a cassette fixed seat, a convex type sliding swing block and a drive spring. The cassette fixed seat has a slide slot and L-shaped wing, the slide slot has a gap, the L-shaped wing is pressed and clamped on the fixed rail, driving the spring to press between the tip of the swing core axis and the convex type sliding block, and the movable rail has an open curved trough. The utility model has a simple structure and big automatic returning force and is tightly closed and applicable to the drawers closed tightly.

Description

The guide rail of band automatic closing device

The utility model relates to a kind of mechanical guide rail, especially a kind of mechanical guide rail of drawer.

Present widely used drawer guideway does not have automatic closing device, and the switch of drawer is entirely by manpower, thus drawer close fashionable just drawer can not be pushed into utmost point position slightly because of carelessness and and leave the slit between the drawer frame, thereby cause cockroach, insect to climb into, extremely unhygienic.

The utility model purpose is to provide a kind of auto-closing, return strength is big and return is fast mechanical guide rail.

The utility model comprises movable rail, retaining rail and tape holder bearing, also has automatic closing device in addition, automatic closing device comprises the swing mandrel of belt end, the cassette holder, driving spring and convex slip centering block, the cassette holder has chute, chute is vertically arranged along guide rail, chute has breach and elasticity tail, there is the L shaped wing cassette holder both sides, the L shaped wing suppresses in the retaining rail both sides and with the cassette holder and is assemblied on the retaining rail, there is D font alignment pin the L shaped wing bottom surface of cassette holder both sides, retaining rail is equipped with the locating hole corresponding with alignment pin in corresponding positions, the alignment pin of cassette holder is inserted on the locating hole of retaining rail, and the cassette holder is positioned on the retaining rail; The protuberance of convex slip centering block has the protrusion slide block suitable with the chute of cassette holder, protrude that the slide block cunning fits in the chute and slide centering block and cassette holder of convex slided over together, driving spring is enclosed within on the mandrel, one end of driving spring is pressed on the termination of swing mandrel, the other end of driving spring is pressed on the convex slip centering block, and the swing mandrel passes convex slip centering block and is stuck on the cassette holder; Movable rail one end has opening arc allocating slot, the protrusion slide block of opening arc allocating slot on the convex slip centering block.

Further the utility model is elaborated below in conjunction with embodiment and accompanying drawing:

Schematic diagram when Fig. 1 opens rail state for the utility model embodiment is in;

Schematic diagram when Fig. 2 folds rail state for embodiment is in;

Fig. 3 is the A-A cutaway view of Fig. 2;

Fig. 4 is the front-view schematic diagram of the automatic closing device of embodiment;

Fig. 5 is the schematic rear view of the automatic closing device of embodiment.

Referring to figs. 1 through Fig. 5, embodiment is 3 joint guide rails, it comprises movable rail 1, mid-rail 8, retaining rail 3, tape holder bearing 5 and automatic closing device 2, and automatic closing device 2 comprises swing mandrel 12, cassette holder 10, convex slip centering block 13 and the driving spring 11 of belt end.Cassette holder 10 has chute 16, chute 16 is vertically arranged along guide rail, chute 16 is at the end jagged 18 near mid-rail 8, the flexible tail 15 of the other end, cassette holder 10 bilateral symmetry respectively have the L shaped wing 17 of 1 straight formula and the L shaped wing 17 of inclined, 4 L shaped wings 17 suppress on the slideway edge that is stuck in retaining rail 3 both sides cassette holder 10 are assemblied on the retaining rail 3, respectively there is 1 D font alignment pin 21 bottom surface of 2 L shaped wings 17, retaining rail 3 has corresponding locating hole 9 in corresponding position, and alignment pin 21 is inserted on the locating hole 9 and with cassette holder 10 and is positioned on the retaining rail 3.Cassette holder 10 has opening arc buffer bar 19 in the termination near mid-rail 8, and there is pyriform hole 20 another termination.The protuberance of convex slip centering block 13 has and the suitable protrusion slide block 14 of the chute 16 of cassette holder 10, protrude that slide block 14 is sliding to be fitted in the chute 16 and slide centering block 13 and cassette holder 10 of convex slided over together, and can slide relatively before and after vertically along guide rail.Compressed spring type driving spring 11 is enclosed within on the swing mandrel 12, one end of driving spring 11 is pressed in the termination of swing mandrel 12, the other end is pressed on the convex slip centering block 13, swing mandrel 12 passes convex slip centering block 13 centers and is stuck in the pyriform hole 20 of cassette holder 10, and swing mandrel 12 can swing.Opening arc allocating slot 4 is contained in movable rail 1 near an end of convex slip centering block 13 and over against protruding slide block 14.Draw drawer forward, the open-shaped attitude of guide rail, opening arc allocating slot 4 with movable rail 1 forward, slide block 14 utmost point position before the chute 16 of cassette holder 10 is forward protruded in backarc limit 6 pushings of opening arc allocating slot 4, driving spring 1 is maximum compression, promoted by the backarc limit 6 of opening arc allocating slot 4, protrusion slide block 14 swings of convex slip centering block 13 are absorbed in the breach 18 of chute 16 front ends and break away from opening

arc allocating slot

4, and 1 on movable rail is straight toward position to the utmost point forward.Pushing away drawer makes guide rail be collapse state backward, the frontal arc limit 7 of opening arc allocating slot 4 pushes away protrusion slide block 14 swings of convex slip centering block 13 and breaks away from the breach 18 of chute 16, the effect of driving spring 11 by compression, convex slip centering block 13 drives protrusion slide block 14 simultaneously and pushes the backarc limit 6 of opening arc allocating slots 4 simultaneously to utmost point position, back rapidly along chute 16 backward.

The utility model compact conformation, aligning power is big, closes to close closely reliably, is applicable to that any requirement is closed to close the folding track of tight drawer and similar mechanism.

Claims

1, a kind of guide rail with automatic closing device comprises movable rail (1), retaining rail (3) and tape holder bearing (5), it is characterized in that: it also has automatic closing device (2), and automatic closing device (2) comprises swing mandrel (12), cassette holder (10), driving spring (11) and the convex slip centering block (13) of belt end; Cassette holder (10) has chute (16), chute (16) is vertically arranged along guide rail, chute (16) has breach (18) and elasticity tail (15), there is the L shaped wing (17) cassette holder (10) both sides, the L shaped wing (17) suppresses in retaining rail (3) both sides and with cassette holder (10) and is assemblied on the retaining rail (3), there is D font alignment pin (21) the L shaped wing (17) bottom surface of cassette holder (10) both sides, retaining rail (3) is equipped with the locating hole (9) corresponding with alignment pin (21) in corresponding positions, the alignment pin (21) of cassette holder (10) is inserted on the locating hole (9) of retaining rail (3), and cassette holder (10) is positioned on the retaining rail (3); The protuberance of convex slip centering block (13) has and the suitable protrusion slide block (14) of the chute (16) of cassette holder (10), protrudes that slide block (14) is sliding to be fitted in the chute (16) and slide centering block (13) and cassette holder (10) of convex slided over together; Driving spring (11) is enclosed within on the swing mandrel (12), one end of driving spring (11) is pressed on the termination of swing mandrel (12), the other end of driving spring (11) is pressed on the convex slip centering block (13), and swing mandrel (12) passes convex slip centering block (13) and is stuck on the cassette holder (10); Movable rail (1) one end has opening arc allocating slot (4), the protrusion slide block (14) of opening arc allocating slot (4) on the convex slip centering block (3).