CN2791197Y

CN2791197Y - Ground spring structure

Info

Publication number: CN2791197Y
Application number: CN 200520017370
Authority: CN
Inventors: 宋建国
Original assignee: DONGFENG METAL PRODUCTS Co Ltd SHANGHAI
Current assignee: Stenley GMT (Shanghai) Hardware Co., Ltd.
Priority date: 2005-04-30
Filing date: 2005-04-30
Publication date: 2006-06-28
Anticipated expiration: 2015-04-30

Abstract

The utility model relates to a ground spring structure, which is provided with an upper pulling plate and a lower pulling plate, wherein one end of the upper pulling plate and the lower pulling plate are pivoted with a pulling rod; a shaft lever is arranged between the upper pulling plate and the lower pulling plate; the shaft lever is connected with a door; the shaft lever is provided with a cam, one end of which is provided with a concave arc-shaped opening of which the two sides are respectively provided with sharp shape edge which is in an arc curved shape and is gradually shrunk towards one end. The bottom surface of one side of the cam is inwards provided with a concave lack groove, and additionally, both ends of the upper pulling plate and the lower pulling plate are respectively provided with opposing rolling wheels to make the cam rotated when the shaft lever is rotated following the door. The edge of the cam can be moved following the cam along the edge of the rolling wheels, which makes the door possible to turn into included angles more than 195 DGE. Because one side of the cam is provided with the concave lack groove, the door is blocked when the door is not rotated according to the specific orientation and the rotation of the door is limited to a single direction.

Description

The floor spring structure

Technical field

The utility model is a kind of floor spring structure, and it is a kind of short slot by cam bottom surface one side direction internal condensation, cooperates with the roller that is positioned at the cam two ends down, makes door only can make folk prescription to unlatching, and rotational angle reaches more than 195 degree.

Background technology

The known floor spring that has the oil pressure structure and be used for the On/Off door please refer to shown in Figure 1ly, and this structure is provided with a lower pulling plate 100, and this lower pulling plate 100 is provided with the fluting 110 of an ovalize.

In addition, this lower pulling plate 100 is provided with the last arm-tie 200 that a shape cooperates with it, and arm-tie 200 is provided with and the 110 relative perforates 210 of slotting on this.

Moreover, this is gone up between arm-tie 200, the lower pulling plate 100 and is provided with an axostylus axostyle 300, these axostylus axostyle 300 1 ends pass perforate 210 and join with the door (not shown), the other end is then protruding to be exposed in the fluting 110, this axostylus axostyle 300 is provided with a cam 400 between last arm-tie 200, lower pulling plate 100 again, and these cam 400 both sides are provided with and are arc-curved shape and Xiang Yiduan and extend the edge 410 that joins and be tip shape, this cam 400 at these edges 410 not condensation one end then be provided with a recessed nock 420.

In addition, upward arm-tie 200, lower pulling plate 100 are respectively equipped with relative perforation 220,120 at two ends, be coated with a central siphon 500 respectively in these perforation 220,120, these central siphons 500 are set on 220,120 of perforation respectively by two ends, and stand between arm-tie 200, the lower pulling plate 100, and these central siphons 500 are being arranged with a roller 510 on the position between last arm-tie 200, the lower pulling plate 100, and these rollers 510 are to be positioned at the scope that cam 400 rotates.

Please refer to shown in Figure 1, this kind device construction in use, though can borrow door to drive axostylus axostyle 300 rotates, cam 400 is moved thereupon, and make cam 400 lean position respectively at roller 510 by original two ends, move to the door rotation direction, simultaneously, roller 510 is also shifted at the edge 410 of cam 400 thereupon, because of the edge 410 of this cam 400 there is no any obstruction and is arc-curved shape, make the edge 410 of cam 400 can be along with the rotation of door, constantly slip over roller 510, and under the promotion of roller 510, cam 400 can be spent by the position transfer to 180 of original zero degree, when cam 400 more can be wherein nested with roller 510 by nock 420, and door can only be positioned on the angle positions of 180 degree.

And because of these cam 400 both sides of the edge all are arc-curved shape; this cam 400 can be moved to either side, thus, when mounted; must make between door and wall and keep certain interval; not only wasting space, and Yin Men can be opened to both sides, and the situation that regular meeting causes the user hit by door knob takes place; do unidirectional unlatching if make; then this structure must add retaining by device, not only causes passage to have some setbacks, and influences attractive in appearance.

Summary of the invention

A purpose of the present utility model, a kind of floor spring structure is being provided, this structure is provided with an arm-tie and a lower pulling plate on one, should go up arm-tie, lower pulling plate one end also articulates with a pull bar, and should go up arm-tie, be provided with an axostylus axostyle between the lower pulling plate, this axostylus axostyle is to be connected with door, and this axostylus axostyle is provided with a cam, these cam both sides are provided with and are arc-curved shape and Xiang Yiduan and extend the edge that is condensed into tip shape, and this cam is provided with the short slot that inwardly concaves in a side bottom surface, moreover, on this, lower pulling plate is respectively equipped with relative roller at two ends, only can be according to specifying a side to open with the order door, otherwise the short slot of axostylus axostyle can be subjected to shelves to be leaned on, cause axostylus axostyle to rotate, and then cause door only can do the action of unidirectional unlatching, and when door is mobile, axostylus axostyle can rotate with door, cam also can move thereupon, and the edge of cam then can move with cam along the edge of roller, makes door can turn to the above angle of 195 degree.

Another purpose of the present utility model is providing a kind of floor spring structure, and this cam one end is provided with recessed nock, when door can be wherein nested with roller by this cam nock, spends on the position of angles and make door can be positioned on 195, so that turnover is convenient.

Description of drawings

Fig. 1 is the known devices schematic diagram;

Fig. 2 is a three-dimensional exploded view of the present utility model;

The schematic perspective view that Fig. 3 combines for arm-tie, lower pulling plate on the utility model;

Fig. 4 is a schematic top plan view of the present utility model;

Fig. 5 is a schematic side view of the present utility model;

Action schematic diagram one when Fig. 6 implements for the utility model;

Action schematic diagram two when Fig. 7 implements for the utility model.

Symbol description:

Lower pulling plate: 100 flutings: 110

Perforation: 220,120 perforates: 210

Axostylus axostyle: 300 cams: 400

Edge: 410 nocks: 420

Central siphon: 500 rollers: 510

Lower pulling plate: 10 flutings: 11

Pivot hole: 12,22 perforation: 13,23

Last arm-tie: 20 perforates: 21

Axostylus axostyle: 30 cams: 40

Edge: 41 nocks: 42

Short slot: 43 central siphons: 50

Roller: 51

The specific embodiment

See also Fig. 2, shown in Figure 3, the utility model is relevant a kind of floor spring structure, and this structure is provided with a lower pulling plate 10, is the panel of a rectangle in present embodiment, this lower pulling plate 10 is provided with the fluting 11 of an ovalize, and these lower pulling plate 10 1 ends are provided with symmetrical pivot hole 12.

In addition, this lower pulling plate 10 is provided with the last arm-tie 20 that a shape cooperates with it, should go up arm-tie 20 is provided with and the 11 relative perforates 21 of slotting, and should go up arm-tie 20 1 ends and also be provided with the pivot hole 22 relative with pivot hole 12, to make the pull bar (not shown) be set on pivot hole 12 by bearing, in 22, and with last arm-tie 20, lower pulling plate 10 links together, and be interposed in arm-tie 20, between the lower pulling plate 10, this pull bar other end also joins with a piston, this piston is to cooperate with pull bar, is used for adjusting the speed of a rotation, because of this structure is to be known structure, and non-is the utility model emphasis, so do not give unnecessary details in addition at this.

Moreover, should go up arm-tie 20, between the lower pulling plate 10 and be provided with an axostylus axostyle 30, these axostylus axostyle 30 1 ends pass perforate 21 and join with the door (not shown), the other end is then protruding to be exposed in the fluting 11, this axostylus axostyle 30 is at last arm-tie again, lower pulling plate 20, be provided with a cam 40 between 10, this cam 40 can be by welding, mode such as one-body molded and axostylus axostyle 30 combine, and these cam 40 both sides are provided with and are arc-curved shape and Xiang Yiduan and extend the edge 41 that joins and be tip shape, this cam 40 at these edges 41 not condensation one end then be provided with a recessed nock 42, in addition, and these cam 40 1 side bottom surfaces are provided with the short slot 43 that inwardly concaves, and are to be the L type (as Fig. 3 in this short slot 43 of present embodiment, shown in Figure 4).

In addition, upward arm-tie 20, lower pulling plate 10 are respectively equipped with relative perforation 23,13 at two ends, be coated with a central siphon 50 respectively in these perforation 23,13, these central siphons 50 are set on 23,13 of perforation respectively by two ends, and stand between arm-tie 20, the lower pulling plate 10, and these central siphons 50 are being arranged with a roller 51 on the position between last arm-tie 20, the lower pulling plate 10, and these rollers 51 are to be positioned at the scope that cam 40 rotates.

Please refer to Fig. 2, shown in Figure 3, a side direction that does not offer short slot 43 along cam 40 bottom surfaces when door moves and when driving axostylus axostyle 30 and rotating, cam 40 can move thereupon, and make cam 40 lean position respectively at roller 51 by original two ends, move to the door rotation direction, simultaneously, roller 51 is also shifted at the edge 41 of cam 40 thereupon, because of the edge 41 of this cam 40 there is no any obstruction and is arc-curved shape, make the edge 41 of cam 40 can be along with the rotation of door, constantly slip over roller 51, and under the promotion of roller 51, cam 40 can be spent by the position transfer to 195 of original zero degree, and then make the door can be under cam 40 helps, turn to the above angle of 195 degree (as Fig. 6, shown in Figure 7), otherwise, as door is when cam 40 offers a side shifting of short slot 43, and this short slot 43 can be buckled on the central siphon 50, and can't make axostylus axostyle 30 rotate (as Fig. 6), so, can make door offer direction and be confined to unidirectionally, and can make door and wall need not keep the space, and not need to increase in addition retaining by device, can allow and do unidirectional unlatching, moreover, when cam 40 more can be wherein nested with roller 51 by nock 42, and door is positioned on the certain angle position.

Claims

1, a kind of floor spring structure is characterized in that described this floor spring structure includes:

One lower pulling plate, it is provided with a fluting;

Arm-tie on one, its shape cooperates with lower pulling plate, also is provided with on the arm-tie and the relative perforate of slotting on this;

One axostylus axostyle, it is to be interposed between arm-tie, the lower pulling plate, these axostylus axostyle two ends are set on the fluting of lower pulling plate respectively and go up in the arm-tie perforate, and this axostylus axostyle one end is to join with door;

One cam, it is to place axostylus axostyle to be interposed in position between arm-tie, the lower pulling plate, this cam is to combine with axostylus axostyle, and these cam both sides are provided with and are arc-curved shape and Xiang Yiduan and extend the edge that condensation is joined, and this cam one side bottom surface is provided with the short slot that inwardly concaves;

More than one roller, it is to be positioned at arm-tie, lower pulling plate two ends and in the cam rotation scope.

2, floor spring structure according to claim 1 is characterized in that: described cam is not provided with recessed nock to internal condensation one end, with by this nock that roller is wherein nested, and door is positioned on the certain angle position.

3, floor spring structure according to claim 1 is characterized in that: the short slot of cam is to be the L type.