CN202009845U

CN202009845U - Buffer guide rail closing force adjusting mechanism

Info

Publication number: CN202009845U
Application number: CN2011200893751U
Authority: CN
Inventors: 李绍汉
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-30
Filing date: 2011-03-30
Publication date: 2011-10-19
Anticipated expiration: 2021-03-30

Abstract

A buffer guide rail closing force adjusting mechanism belongs to furniture and hardware. The buffer guide rail closing force adjusting mechanism comprises a support, a damping cylinder, a sliding rail, a slider, tension springs, and a tension spring tension adjusting device. The tension spring tension adjusting device comprises a rack, a gear and a bearer; the bearer is installed behind the support; the bearer is provided with a rack guide groove at the bottom; two side wall plates of the bears are provided with a first shaft hole and a second shaft hole respectively; the bearer is provided with a ratchet on the top; the rack is provided with a traction groove at the front end and is inserted in the rack guide groove in the bearer; center of one side of the gear is provided with a shaft extension; the other side of the gear is provided with a protruding ring and an adjusting groove; the shaft extension is inserted in the first shaft hole in the bearer; the protruding ring is embedded in the second shaft hole in the bearer; the surface of the gear is contacted with the rack and the ratchet of the bearer simultaneously, and each tension spring has one end embedded in the traction groove in the rack and the other end connected with the slider. The utility model has a simple structure, is convenient and easy for installation and adjustment and can be installed on various drawer guide rails.

Description

The buffering guide rail is closed the power governor motion

Technical field

The utility model belongs to five metals, especially a kind of buffering returning device that is installed on the guide rail.

Background technology

The drawer that guide rail has been installed drags very suitable cunning, produce bump when closing and send sound for fear of drawer, most of guide rails all are provided with the buffering return mechanism, and spring that the after-stage dependence of closing at drawer is stretched in advance and buffer acting in conjunction drag drawer and slowly move up to complete closure.Because each parts particularly processing dimension and the material of spring there are differences, cause product assembling back disunity on indexs such as screen resilience, return speed in batch, influenced the quality of product, need improve.

Summary of the invention

The purpose of this utility model provides a kind of buffering guide rail and closes the power governor motion, and its spring tension can be regulated, and makes drawer guideway of the present utility model or other guide rail performance unanimities have been installed.

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

The utility model has only increased a foolproof spring tension adjusting device of structure compared with traditional product, and its installation and adjust all very convenient easily; Obtained the meticulous adjusting of the power of closing by it, improved uniformity greatly with the batch products quality.The utility model is suitable to be installed on the various guide rails.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment 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 behind the gear to view;

Fig. 5 is that embodiment is installed in the vertical view on the retaining rail of drawer guideway.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Referring to Fig. 1 to Fig. 4, the 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, roughly is a box, and bearing 5 bottoms are shaped on tooth bar guide groove 10, and first axis hole 11 and second axis hole 12 are arranged respectively on bearing 5 two side wall panels, and wherein second axis hole, 12 diameters are bigger than first axis hole 11; There is a ratchet 13 to extend out by a flexure strip 18 plane from the 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 used for bearing 5 is installed in drawer guideway.

Tooth bar 7 is T-shaped, and is made of plastic, is shaped on 23 teeth above the tooth bar 7; Tooth bar 7 front ends have two traction grooveds arranged side by side 14 to be used to connect extension spring.

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

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 first axis hole 11 of bearing, bulge loop 16 embeds second axis hole 12 of bearing, the tooth on gear 8 surfaces and the tooth bar 7 that inserts bearing 5 contact simultaneously with ratchet 13 on the bearing 5, because the brake force of 13 pairs of gears 8 of ratchet is designed to much larger than the pulling force that is put on tooth bar 7 by all extension springs, so under static state tooth bar 7 can not be shifted.

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

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

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

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

Claims

1. a buffering guide rail is closed the power governor motion, comprise support (1), damping tube (2), slip rail (3), slide block (4) and extension spring (6), it is characterized in that: it also has the extension spring tension-adjusting gear, and described extension spring tension-adjusting gear comprises tooth bar (7), gear (8) and bearing (5); Bearing (5) is installed in support (1) rear, and tooth bar guide groove (10) is arranged at bearing (5) bottom, and first axis hole (11) and second axis hole (12) are arranged respectively on bearing (5) two side wall panels, and ratchet (13) is arranged at bearing (5) top; 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) one side centers, 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) simultaneously with the tooth bar (7) that inserts bearing (5); A traction grooved (14) that embeds on the tooth bar (7) of described extension spring (6), the other end of extension spring (6) is connected with described slide block (4).

2. close the power governor motion according to the described buffering guide rail of claim 1, it is characterized in that: described ratchet (13) is fixed on the described bearing (5) by a flexure strip (18).

3. close the power governor motion according to the described buffering guide rail of claim 1, it is characterized in that: described bearing (5) has card base (19) and locating convex block (20).

4. close the power governor motion according to the described buffering guide rail of claim 1, it is characterized in that: described tooth bar (7) front end has two traction grooveds arranged side by side (14).