CN102715742B

CN102715742B - Buffer guide rail closing force regulation mechanism

Info

Publication number: CN102715742B
Application number: CN201110078733.3A
Authority: CN
Inventors: 李绍汉
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-30
Filing date: 2011-03-30
Publication date: 2014-05-14
Anticipated expiration: 2031-03-30
Also published as: CN102715742A

Abstract

The invention provides a buffer guide rail closing force regulation mechanism, belonging to furniture hardware. The mechanism comprises brackets, a damping drum, a slide rail, a slider, tension springs and a tension spring tension regulating device, wherein the tension spring tension regulating device comprises a rack, a gear and a support; the support is installed behind the brackets; a rack guide slot is arranged at the bottom of the support; a first shaft hole and a second shaft hole are respectively arranged on wall plates on the two sides of the support; a pawl is arranged at the top of the support; 23 tooth are equipped on the rack; traction slots are arranged at the front end of the rack; the rack is inserted into the rack guide slot on the support; shaft extension is arranged in the center of one side of the gear and a convex ring and a regulating slot are arranged at the other side of the gear; the shaft extension is inserted into the first shaft hole on the support; the convex ring is embedded into the second shaft hole on the support; the surface of the gear is simultaneously contacted with the rack and the pawl on the support; and one ends of the tension springs are embedded into the traction slots on the rack and the other ends thereof are connected with the slider. The mechanism has a simple structure, is convenient and easy to install and regulate and is suitable to be installed on various drawer guide rails.

Description

Buffer guide rail closing force adjusting mechanism

Technical field

The invention belongs to five metals, especially a kind of buffering returning device being arranged on guide rail.

Background technology

The drawer that guide rail has been installed drags very smooth, when closing for fear of drawer, produce shock and send sound, most of guide rails are all provided with buffering return mechanism, and the after-stage of closing at drawer relies on the spring and the buffer acting in conjunction that are stretched in advance to drag the slow movement of drawer until completely closed.Due to each parts particularly processing dimension and the material of spring there are differences, cause in batch after assembling product disunity in the indexs such as screen resilience, return speed, affected the quality of product, need to improve.

Summary of the invention

The object of this invention is to provide a kind of buffer guide rail closing force adjusting mechanism, its spring tension can regulate, and makes to have installed drawer guideway of the present invention or other guide rail performances are consistent.

The present invention includes support, damping cylinder, slip rail, slide block and extension spring, it is characterized in that it also has extension spring tension-adjusting gear, extension spring tension-adjusting gear comprises tooth bar, gear and bearing; Bearing is arranged on support rear, and rest base has tooth bar guide groove, has respectively the first axis hole and the second axis hole in bearing two side wall panels, and ratchet is arranged at bearing top; Above tooth bar, be shaped with 23 teeth, tooth bar front end has traction grooved, and tooth bar inserts the tooth bar guide groove of bearing; There is shaft extension at gear Yi Ce center, and gear opposite side has bulge loop and regulating tank, and shaft extension is inserted the first axis hole of bearing, and bulge loop embeds the second axis hole of bearing, and gear surface contacts with ratchet with the tooth bar of bearing simultaneously; A traction grooved embedding on tooth bar of extension spring, the other end of extension spring is connected with slide block.

The present invention has only increased a foolproof spring tension adjusting device of structure compared with traditional product, and its install and adjust is all very convenient easy; Obtain the meticulous adjusting of the power of closing by it, greatly improved the uniformity with batch products quality.The present invention is suitable to be arranged on various guide rails.

Accompanying drawing explanation

Fig. 1 is the structural representation of embodiment of the present invention extension spring tension-adjusting gear;

Fig. 2 is the exploded view of extension spring tension-adjusting gear;

Fig. 3 is that the A of Fig. 1 is to view;

Fig. 4 is that Fig. 1 removes A after gear to view;

Fig. 5 is that embodiment is arranged on the top view in the retaining rail of drawer guideway.

The specific embodiment

Below in conjunction with accompanying drawing, the present invention is described in further detail.

Referring to Fig. 1 to Fig. 4, extension spring tension-adjusting gear is made up of bearing 5,

tooth bar

7 and 8 three parts of gear.

Bearing 5 is made of plastic, is roughly a box, and bearing 5 bottoms are shaped with tooth bar guide groove 10, has respectively the first axis hole 11 and the second axis hole 12 in bearing 5 two side wall panels, and wherein the second axis hole 12 diameters are larger than the first axis hole 11; There is a ratchet 13 to extend out by a flexure strip 18 plane from bearing 5; There are two card bases 19 at bearing 5 rear portions, and two locating convex blocks 20 are arranged at bearing 5 bottoms, and card base 19 and locating convex block 20 are for being arranged on drawer guideway bearing 5.

Tooth bar 7 is T-shaped, made of plastic, and tooth bar 7 is shaped with 23 teeth above; Tooth bar 7 front ends have two traction grooveds 14 arranged side by side for connecting extension spring.

Gear 8 is made of plastic, is shaped with 11 teeth; There is shaft extension 15 at one side center, the first axis hole 11 internal diameter adaptations on the external diameter of shaft extension 15 and bearing 5; Its opposite side has bulge loop 16, the second axis hole 12 internal diameter adaptations on the internal diameter of bulge loop 16 and bearing 5; The rear end face of gear 8 is shaped with criss-cross regulating tank 17 and makes gear torsional for inserting screwdriver.

Tooth bar 7 inserts the tooth bar guide groove 10 of bearing 5, and tooth bar 7 can move in tooth bar guide groove 10; The shaft extension 15 of gear 8 is inserted the first axis hole 11 of bearing, bulge loop 16 embeds the second axis hole 12 of bearing, the tooth on gear 8 surfaces contacts with the ratchet 13 on bearing 5 with the tooth bar 7 that inserts bearing 5 simultaneously, because ratchet 13 is designed to much larger than the pulling force that is put on tooth bar 7 by all extension springs the brake force of gear 8, so under static state tooth bar 7 can not be shifted.

Referring to Fig. 5, traditional buffer guide rail has support 1, damping cylinder 2, slip rail 3, slide block 4 and extension spring 6; Damping cylinder 2 is fixed on support 1, and support 1 and slip rail 3 are arranged in the retaining rail 21 of drawer guideway, and slide block 4 is sleeved on slip rail 3, and slide block 4 is connected with damping cylinder 2; In conventional guide rails buffer, have and also the having an of extension spring is set two extension springs are set, on the conventional guide rails buffer that two extension springs are set, article two, extension spring 6 two draw-in groove 9 that embed respectively on slide block 4, article two, the other end of extension spring 6 embeds respectively two traction grooved (not shown) that are produced on support 1 afterbody, and the initial length of two extension springs is definite values.

In an embodiment of the present invention, article two, extension spring 6 two draw-in groove 9 that embed respectively on slide block 4, article two, the other end of extension spring 6 embeds respectively the degree of depth that the initial length of 14, two extension springs 6 of two traction grooveds on tooth bar 7 inserts bearing 5 according to tooth bar 7 and changes.

When Product Assembly, support 1 and bearing 5 are all to utilize the card base of self and locating convex block to be fixed on above retaining rail 21, with screwdriver turn gear, coordinate dynamometer to regulate the tension force that just can set rapidly guide rail product.

As another kind of embodiment, support 1 and bearing 5 also can synthesize a part, extend back and make bearing 5 at the afterbody of support 1, and both do not exist the difference in function.

Claims

1. a buffer guide rail closing force adjusting mechanism, comprise support (1), damping cylinder (2), slip rail (3), slide block (4) and extension spring (6), it is characterized in that: it also has extension spring tension-adjusting gear, described extension spring tension-adjusting gear comprises tooth bar (7), gear (8) and bearing (5); Bearing (5) is arranged on support (1) rear, and tooth bar guide groove (10) is arranged at bearing (5) bottom, has respectively the first axis hole (11) and the second axis hole (12) in bearing (5) two side wall panels, and ratchet (13) is arranged at bearing (5) top; Tooth bar (7) is shaped with 23 teeth above, and tooth bar (7) front end has traction grooved (14), and tooth bar (7) inserts the tooth bar guide groove (10) of bearing (5); There is shaft extension (15) at gear (8) Yi Ce center, gear (8) opposite side has bulge loop (16) and regulating tank (17), shaft extension (15) is inserted first axis hole (11) of bearing (5), bulge loop (16) embeds second axis hole (12) of bearing (5), and gear (8) surface contacts with ratchet (13) with the tooth bar (7) that inserts bearing (5) simultaneously; A traction grooved (14) embedding on tooth bar (7) of described extension spring (6), the other end of extension spring (6) is connected with described slide block (4).

2. according to buffer guide rail closing force adjusting mechanism claimed in claim 1, it is characterized in that: described ratchet (13) is fixed on described bearing (5) by a flexure strip (18).

3. according to buffer guide rail closing force adjusting mechanism claimed in claim 1, it is characterized in that: described bearing (5) has card base (19) and locating convex block (20).

4. according to buffer guide rail closing force adjusting mechanism claimed in claim 1, it is characterized in that: described tooth bar (7) front end has two traction grooveds arranged side by side (14).