CN2790287Y

CN2790287Y - Guide safety buffer

Info

Publication number: CN2790287Y
Application number: CN 200520004731
Authority: CN
Inventors: 李绍汉
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-04-06
Filing date: 2005-02-08
Publication date: 2006-06-28
Anticipated expiration: 2015-02-08

Abstract

The utility model relates to a guide rail safety buffer which is a buffering device installed on a guide rail. The utility model comprises a rack and a one-way damping device, wherein the one-way damping device comprises a bottom shell, a middle shell, a top shell, a damping box, a damping box cover, a damping sheet which is provided with a middle shaft, a disk, a gear, a spring and a sealing ring; the damping sheet is arranged in the damping box, and the part of the middle shaft of the damping sheet, which is penetrated out of the damping box cover is fixedly connected with the disk; the gear is sheathed on the upper section of the fixed connection part of the middle shaft of the damping sheet and the disk, and the bottom end of the middle shaft of the damping sheet penetrates in a shaft hole of the top shell; the damping box is fixed in the bottom shell; the lower surface of the gear is provided with a bevel, and the upper surface of the disk is provided with a reverse bevel; the spring is sheathed outside the middle shaft of the damping sheet, and the upper and the lower ends of the spring are respectively contacted with the top shell and the gear; the gear is engaged with the rack. The guide rail safety buffer of the utility model can not hurt hands nor sound under various conditions of use, having the advantages of safety and strong practicability. The utility model is suitable for any drawer which needs to be tightly opened and closed and the opening and closing tracks of the mechanisms of the same class.

Description

Guide rail safety buffer

Technical field

The utility model relates to a kind of drawer guideway annex, especially a kind of buffer unit that is installed on the drawer guideway.

Background technology

In the prior art, in order to make drawer can close to such an extent that fit, partly make an inclined-plane that has a down dip or one sleeve spring partly be set in the end of drawer guideway and return power apparatus in the end of guide rail, when pulling out drawer to spring energy-storage, spring reset when drawer is advanced to the end; These two kinds of methods can both make drawer can be subjected to a strength of tightening up inwards when sliding into the end and make drawer close to such an extent that fit.But this has produced new problem again: drawer begins to quicken to move to the inside when closing the position near the pass, can send bigger sound at last, just might be pinched by drawer if user's finger is also contacting the drawer edge accidentally; When drawer is applied in improper great strength it is slippaged, then may damage, send very big noise simultaneously finger.

Summary of the invention

Have certain potential safety hazard and the bigger shortcoming of sound at existing drawer guideway, the purpose of this utility model provides a kind of guide rail safety buffer, and it can make drawer move lentamente in the final stage that advances and close up to bat.

The utility model comprises tooth bar and unidirectional damping device, and the unidirectional damping device comprises damping fin, sealing ring and the gear of drain pan, mesochite, top shell, the damping box with protruding axle, damping lid, band axis; The all corresponding slotted hole that has of drain pan and top shell with long and short axle, the long axis direction of slotted hole is identical with the direction of motion of drawer, has through hole on the damping fin, and damping fin is installed in the damping box, in the damping box damping oil is housed; The damping lid covers on the damping box, and it is affixed with bore that the axis of damping fin passes the part of damping box, and the tip of the axis pierces in the slotted hole of top shell in the damping fin; On the excircle of damping box tooth is arranged, the protruding axle of damping box is coaxial with the axis of damping fin, and the protruding axle of damping box pierces in the slotted hole of drain pan; The inwall of mesochite has brake tooth along a side of the long axis direction of slotted hole; The wheel and rack engagement.In the present invention, the length of tooth bar only accounts for the fraction of rail length, can contact gear and and gears engaged so only close the last stroke tooth bar that closes at drawer.Make the axis of damping fin and the protruding axle of damping box run into the slotted hole outside until the axis of damping fin and the protruding axle of damping box when pulling out drawer hour rack handsetting gear along slotted hole is outwards mobile, tooth in this process on the excircle of damping box separates with brake tooth, the motion of damping box is unrestricted, the idle running of rack drives gear driven damping box, outwards moving of drawer is not obstructed substantially.Behind tooth bar disengaging gear, drawer more is in complete free state.Situation is opposite when advancing drawer: be in free state at the leading portion drawer, its motion is not obstructed, after being advanced to the engaging-in gear of tooth bar, the tooth bar handsetting gear makes the interior side direction of the protruding axial long hole of the axis of damping fin and damping box move the engaging-in brake tooth of tooth on the excircle of damping box, tooth on the excircle of damping box is braked tooth and blocks the damping box can not be rotated, rack drives gear and damping fin rotate simultaneously, at this moment the motion of drawer is damped, and drawer is covered the final stage of stroke lentamente.

The utility model can not damage staff under various service conditions yet can not send sound, and security and practical is applicable to that any requirement is closed to close the folding track of tight drawer and similar mechanism.

Description of drawings

Further specify the utility model below in conjunction with accompanying drawing.

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the exploded view of embodiment;

Fig. 3 is the state diagram that embodiment unidirectional damping device is withdrawn from;

Fig. 4 is the state diagram that embodiment unidirectional damping device drops into.

The specific embodiment

Referring to Fig. 1, Fig. 2, tooth bar 8 is installed on the moving rail that is fixed in drawer bottom; Drain pan 1, mesochite 9, top shell 2 have constituted the shell of one-way damper jointly, and shell is installed on the orbit determination of being fixed in the cupboard, and drain pan 1, top shell 2 all have the corresponding slotted hole 6 with long and short axle, and the long axis direction of slotted hole 6 is identical with the direction of motion of drawer; Damping fin 5 is installed in the damping box 11, has 8 through holes 13 on the damping fin 5, in the damping box 11 damping oil is housed, if damping oil will be extruded by through hole 13 and produce resistance when damping fin 5 rotates in damping box 11; For preventing the leakage of damping oil, the axis that has a sealing ring 4 to be installed in damping fin 5 passes the position of damping lid 3; Be provided with spline between the part that the axis of damping fin 5 passes damping lid 3 and gear 7 endoporus and be connected, be convenient to again install when the axis of damping fin 5 can firmly be connected with gear 7, the tip of the axis is placed in the slotted hole 6 of top shell 2 in the damping fin 5; Be shaped on tooth 10 on the excircle of damping box 11, tooth 10 is unidirectional ratchets; The center is shaped on protruding axle below the damping box 11, and the protruding axle of damping box 11 is coaxial with the axis of damping fin 5, and the protruding axle of damping box 11 is placed in the slotted hole 6 of drain pan 1; The rear side of the middle part inwall of mesochite 9 is shaped on brake tooth 12, and tooth 12 also is unidirectional ratchet.Tooth bar 8 has an independent tooth in a side of drawer pull-out direction in addition, separately tooth and other teeth are discontinuous and from a distance; By adjusting the installation site of one-way damper on orbit determination rightly, make when drawer close fully fashionable, gear 7 no longer with tooth bar 8 engagements, thereby this has just guaranteed that drawer is in the free state pass and closes better in a bit of stroke that closes fully before closing; The purpose that independent tooth is set is to guarantee that moving rail was not easy slippage from the orbit determination that assembles before not loading onto drawer.

Fig. 3 and Fig. 4 can illustrate whether tooth 10 and brake tooth 12 mesh and depend on that tooth bar 8 is the direction of motion of drawer that so this mechanism is a unidirectional damping unit, it only plays damping action at the last stroke that drawer advances.

Claims

1. guide rail safety buffer, it comprises tooth bar (8) and unidirectional damping device, it is characterized in that: the unidirectional damping device comprises damping fin (5), sealing ring (4) and the gear (7) of drain pan (1), mesochite (9), top shell (2), the damping box (11) with protruding axle, damping lid (3), band axis; The all corresponding slotted hole (6) that has of drain pan (1) and top shell (2) with long and short axle, the long axis direction of slotted hole (6) is identical with the direction of motion of drawer; Damping fin (5) is installed in the damping box (11), damping fin (5) can rotate in damping box (11), the damping box is equipped with damping oil in (11), damping lid (3) covers on damping box (11), it is affixed with gear (7) endoporus that the axis of damping fin (5) passes the part of damping lid (3), and the tip of the axis pierces in the slotted hole (6) of top shell (2) in the damping fin (5); Tooth (10) is arranged on the excircle of damping box (11), and the protruding axle of damping box (11) is coaxial with the axis of damping fin (5), and the protruding axle of damping box (11) pierces in the slotted hole (6) of drain pan (1); The inwall of mesochite (9) has brake tooth (12) along a side of the long axis direction of slotted hole (6); Gear (7) and tooth bar (8) engagement.

2. guide rail safety buffer according to claim 1 is characterized in that: the axis of described damping fin (5) passes between the part of damping lid (3) and gear (7) endoporus has spline affixed.

3. guide rail safety buffer according to claim 1 is characterized in that: the axis that described sealing ring (4) is installed in damping fin (5) passes the position of damping lid (3).

4. guide rail safety buffer according to claim 1 is characterized in that: have through hole (13) on the described damping fin (5).

5. guide rail safety buffer according to claim 1 is characterized in that: described tooth (10) and brake tooth (12) all are unidirectional ratchets.

6. guide rail safety buffer according to claim 1 is characterized in that: described tooth bar (8) has an independent tooth in a side of drawer pull-out direction, separately tooth and other tooth is discontinuous and from a distance.