CN2318360Y - Closer or opener for door - Google Patents

Abstract

The utility model relates to a closer or opener for a door. The closer or opener for a door is composed of a cam mechanism, a spring return mechanism and an oil passage damping mechanism. The utility model is characterized in that the oil passage damping mechanism is composed of an oil return hole A, an oil hole C, a single control valve which is crossed with the oil hole C and a triangular form long groove B. A door can be closed by two speeds of quick and slow by realizing the closer or opener for a door. A main body can be adjusted in a case right and left or front and back so that installation and usage are convenient. The rotary seal of a camshaft is composed of an O-shaped sealing ring and a skeleton with spring rubber oil seal so that dual seal is formed. The utility model has the advantages of small size, light weight, oil-tight, etc. and is suitable for the various door leave automatic switches of hotels, banquet halls, supermarkets and household living chambers.

Description

Floor spring

The utility model relates to a kind of ground that is installed in, make door leaf stable, the automatic ground door closer that two speed are closed claims floor spring again.This mainly includes housing and the main body in housing and the camshaft in the main body and the cam mechanism that is located at the big roller formation on the lower plate, and spring reset mechanism and oil pressure reducing gear are formed.

Development along with builing industry, use the place of floor spring progressively to increase, quality and life requirements to floor spring are more and more higher, and existing its structure of various floor spring and operating principle are basic identical, but all be with three oilholes or with two mediation valve control rates, and main body is to be fixed in the housing to adjust, so door leaf is installed the back if any misaligning and can only tearing a repairing open during problem such as collision mutually.

In order to overcome the deficiency that existing floor spring exists, the utility model purpose is that the technology that proposes a kind of floor spring solves new departure, promptly on the cylinder wall E of main body (1), be provided with spill port A and a triangular form elongated slot B, oilhole C, reconcile the fast of door leaf by the oil circuit damping action that spill port A triangular form elongated slot B oilhole C piston (17) mediation valve (21) forms, slowly close, establish an estuary D (see figure 4) on the mediation valve (21) and be used for realizing the single valve conciliation, with three outer six square bolts (31) and nut (30) and the left-right and front-back adjustment in housing (2) of left and right sides plate washer (5) control main body (1), reach the installation requirement (see figure 2) with sunk screw (34) and side's pad (27) stationary body (1), 0 RunddichtringO (26) and skeleton band spring rubber oil sea (6) are housed in Da Gai (9), the sealing mechanism of powder metallurgy cover (22) increases sealing intensity.All do not relate to this technical performance in the patented technology document of 12 pieces of relevant floor springs such as classification number E05F00304, the E05F00510 of Chinese library 1985-1993 Chinese patent and E05F00112 in 1994 etc. and door check aspect by retrieval.

Characteristics of the present utility model are: volume is little, in light weight, body position can be adjusted according to needs are installed, rotary part adopts double containment, and stable working is oil-proof, long service life, triangular form elongated slot B control is district's speed of closing the door fast, and what the district adopted oilhole C and single mediation valve (21) at a slow speed cooperates the adjustment speed of closing the door, and can adjust in time second at 0-20.

The contrast accompanying drawing is described further structure of the present utility model and technical performance thereof.

Fig. 1, Fig. 2 are the structural representation of a kind of specific embodiments of the utility model.Number in the figure 1-main body, the 2-housing, 3-oil is stifled, the 4-camshaft, 5-left and right sides plate washer, 6-skeleton band spring rubber oil sea, the 7-big roller, 8-pad lid, the big lid of 9-, the 10-trundle, the 11-joint bolt, the 12-lower plate, the 13-upper plate, the 14-cover plate, the 15-spring, the 16-connecting rod, the 17-piston, the 18-piston pin, 19-presses nail, the 20-rear pressing cover, the 21-mediation valve, 22-powder metallurgy cover, the 23-large sealing packing ring, the 24-plain washer, the 25-bearing, the 26-0 RunddichtringO, 27-side's pad, the 28-one way valve, the 29-0 RunddichtringO, the 30-nut, the outer six side's nuts of 31-, the 32-sunk screw, the 33-0 RunddichtringO, the 34-sunk screw, the long shoulder of 35-(see figure 5).

Fig. 3, Fig. 4 are oil circuit damping operating principle of the present utility model.

Fig. 5 is the utility model outward appearance and long shoulder (35) three positions when door opens and closes.

With reference to Fig. 1, Fig. 2, the structure of the utility model floor spring is included in and is provided with big lid (9) on the main body (1), in adorn 0 RunddichtringO (26), the rotational sealing structure that skeleton band spring-loaded oil seal (6) and powder metallurgy cover (22) and camshaft (4) are formed, connecting upper plate (13) on the camshaft (4), lower plate (12), bearing (25) and big roller (7), the cam mechanism that trundle (10) and camshaft (4) are formed, cam mechanism is connecting connecting rod (16) with joint bolt (11), spring (15), piston (17), thereby realized that rotatablely moving of protruding rotating shaft (4) becomes the rectilinear motion of piston, the right-hand member of main body (1) seals with rear pressing cover (20) and 0 RunddichtringO (29), long shoulder (35) (see figure 5) is being pacified in camshaft (4) upper end, long shoulder (35) is fixed to the lower end of doorframe with screw, the both sides of main body respectively are provided with a U type groove F, with sunk screw (34) and side's pad (27) main body (1) is fastened on the housing (2), push up respectively with outer six square bolts (31) of three nuts (30) and three and to consolidate on the left and right sides plate washer (5) that welds together at housing (2) with housing (2), finish the adjustment of main body (1) left-right and front-back in housing (2), with reference to Fig. 3, Fig. 4 is provided with spill port A respectively at the oil cylinder E position of main body (1), triangular form elongated slot B, oilhole C and mediation valve (21), 0 RunddichtringO (23), the lower end of mediation valve has estuary B, establish one way valve (28) on the piston (17), realize the oil circuit damping action during piston (17) moving linearly, finished the action of closing the door of two speed.

The operating principle of this floor spring is: when opening the door, door leaf drives camshaft (4) by long shoulder (35) (see figure 5) and does clockwise or rotate counterclockwise, camshaft (4) promotes big roller (7), by upper plate (13), lower plate (12) and connecting rod (16) drive piston (17) move to left and compress spring (15), oil pressure is opened one way valve (28), (part oil is by triangular form elongated slot B in the rapid oil suction of oil pocket of piston (17) right part, oilhole C flows into right chamber, see Fig. 3) be opened to 90 when spending when door leaf, camshaft (4) is stuck on the big roller (7), guarantee that door leaf is in 90 degree halted states, piston this moment (17) is on the Y1 position among Fig. 3, when the door leaf unlatching is spent less than 85 (referring to Fig. 3), because the active force of spring (15), it is right that the triangular form elongated slot B that hydraulic oil upward is provided with by housing (1) flows to right chamber, triangular form elongated slot B is more and more littler at the sectional area of piston (17) sealing place, door slows down and closes, when piston (17) runs to the Y2 position, triangular form elongated slot B is by all sealings of piston (17), door leaf becomes closed condition at a slow speed, this moment, door was in 15～20 degree angles, when door leaf continues to cut out, hydraulic oil flows to right chamber by oilhole C via the estuary D spill port A of mediation valve (21), mediation valve (21), the sealing station of estuary D on the mediation valve changes, realized distinguishing at a slow speed any requirement that opens and closes in 0～20 second, piston (17) was in the Y3 position when door was closed, floor spring housing (2) is fixed in the cement floor in the installation, with reference to Fig. 2 if a door center misaligns and door is not closed completely and when colliding mutually, take cover plate (14) apart and unclamp sunk screw (34), unclamp three nuts (30) and three outer six square bolts (31), the position of mobile agent (1) in housing (2), door adjust to need the position after, firm outer six square bolts (31), nut (30) and sunk screw (34) just can use with sunk screw (32) securing cover plate (14) door.

This floor spring technology is widely used in the automatic shutter technology that balcony, hotel, the meeting Room, hall, market and private residence are lived all kinds of door leafs of chamber, is present a kind of hot product.

Claims (3)

1. floor spring, mainly comprise housing (2) and the interior main body (1) of housing, camshaft (4) in the main body (1) and the cam mechanism that is located at big roller (7) formation on lower plate (12), (13), the spring reset mechanism and the oil pressure reducing gear of fixedlying connected with last lower plate (12), (13), it is characterized in that being provided with at the oil cylinder E position of main body (1) spill port A, triangular form elongated slot B, oilhole C, and with crossing reconciled oil circuit damping circulation area and the single mediation valve (21) of spill port A, oilhole C.

2. floor spring as claimed in claim 1, the both sides that it is characterized in that described main body (1) respectively are provided with a U type groove F and two screwed holes, there is a screwed hole at the center of rear pressing cover (20), nut (30) is arranged in each screwed hole, outer six square bolts (31), be welded with (5) two of left and right sides plate washers in the housing (2), the side's of having pad (27) on the U type groove F of main body (1) both sides, sunk screw (34).

3. as claim 1 and 2 described floor springs, it is characterized in that being provided with in the big lid (9) 0 RunddichtringO (26), skeleton band spring rubber oil sea (6), powder metallurgy cover (22).

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