CN202731524U

CN202731524U - Door-closing bumper with adjustable damping effect

Info

Publication number: CN202731524U
Application number: CN 201220436049
Authority: CN
Inventors: 黄金力; 黄辉明; 李春梅
Original assignee: Xiamen University
Current assignee: Xiamen University
Priority date: 2012-08-29
Filing date: 2012-08-29
Publication date: 2013-02-13
Anticipated expiration: 2022-08-29

Abstract

The utility model discloses a door-closing bumper with an adjustable damping effect, and relates to a door-closing bumper. The door-closing bumper has the adjustable damping effect, can significantly reduce noise, and can thoroughly prevent damages probably caused by slamming to a door leaf or a door frame. The door-closing bumper is provided with a screw rod, a cavity, a spring and a nut. The lower part of the screw rod penetrates into a chamber of the cavity and is matched with the nut, and the upper part of the screw rod is exposed out of the cavity; the spring is sleeved at the lower end of the screw rod, the lower end of the spring presses against the lower end face of the nut, and the lower end of the spring presses against the bottom surface of the chamber of the cavity; and the cavity is fixedly connected with the door frame. The door-closing bumper is provided with a closed cavity, and when the nut is placed into the cavity and the cavity is covered by a cover plate, the nut cannot rotate freely. Therefore, the compression amount of the spring can be adjusted through threaded fit by only rotating the screw rod, and when the spring is compressed, the compression amount correspondingly changes, so that an effect of damping adjustment is achieved. By the door-closing bumper, the door can be closed slowly, so that the noise is significantly reduced, and abrasion is reduced. Moreover, the door-closing bumper is simple in process, convenient to assemble and reliable in damping effect.

Description

The door cushion that a kind of damping is adjustable

Technical field

The utility model relates to a kind of door cushion, especially relates to the adjustable door cushion of a kind of damping.

Background technology

Door if leave a body knocking door case, then can produce very large noise when closing, and damages door body or doorframe easily, even both damage simultaneously.

At present, because existing door cushion with damping generally do not possess the damping regulatory function, can't be according to the actual conditions damping adjusting effect at scene, so result of use is limited.

Summary of the invention

The purpose of this utility model provides a kind of damping and can regulate, and can significantly reduce noise, thoroughly prevents from falling the adjustable door cushion of damping that door t door is fanned or doorframe may damage.

The utility model is provided with screw rod, cavity, spring and nut.

The screw rod bottom penetrates the chamber of cavity, and cooperates with nut, and screw rod top is exposed to the cavity outside, and spring housing is in the screw rod lower end, and the spring upper end withstands on the nut lower surface, and the spring lower end withstands on the chamber bottom surface of cavity, and cavity and doorframe are connected.

Described cavity preferably is concave shape, and the cavity hatch place is provided with cover plate.

Described cavity two sides preferably are provided with mounting ear, and mounting ear is provided with screwing through hole, and cavity is connected by trip bolt and doorframe.

Compared with the prior art, the utlity model has following outstanding advantages:

Owing to the utlity model has the cavity of sealing, after nut is put cavity into, build cover plate, nut just can not freely rotate.So only need rotating screw bolt, just can utilize threaded engagement to come the decrement of regulating spring, corresponding the changing of decrement meeting when spring is compressed, thus reach the damping adjusting effect.The utility model can make door close lentamente, significantly reduces noise, reduces wear.And technique is simple, and easy to assembly, damping is reliable.

Description of drawings

Fig. 1 is the utility model example structure schematic diagram.

Fig. 2 is the A-A cross-sectional schematic of Fig. 1.

Fig. 3 is the schematic diagram of installing and using of the utility model embodiment.

The specific embodiment

Referring to Fig. 1 and 2, utility model comprises screw rod 1, cavity 2, spring 3 and nut 4;

Screw rod 1 bottom penetrates the chamber of cavity 2, and cooperates with nut 4, and screw rod 1 top is exposed to cavity 2 outsides, and spring 3 is enclosed within screw rod 1 lower end, and spring 3 upper ends withstand on nut 4 lower surfaces, and spring 3 lower ends withstand on the chamber bottom surface of cavity 2, and cavity 2 is connected with the outside.

Described cavity 2 is the concave shape cavity, and cavity 2 opening parts also are provided with cover plate 5.

Described cavity 2 two sides are provided with mounting ear 21, and mounting ear 21 is provided with screwing through hole, and cavity 2 is connected by trip bolt 6 and outside (such as doorframe).

Referring to Fig. 3, it is inboard that cavity 2 of the present utility model is fixed in outside doorframe P2, can touch screw rod 1 when door leaf P1 closes, and under spring 3 active forces, has damping.

Claims

1. the door cushion that damping is adjustable is characterized in that being provided with screw rod, cavity, spring and nut;

2. the adjustable door cushion of a kind of damping as claimed in claim 1 is characterized in that described cavity is concave shape, and the cavity hatch place is provided with cover plate.

3. the adjustable door cushion of a kind of damping as claimed in claim 1 is characterized in that described cavity two sides are provided with mounting ear, and mounting ear is provided with screwing through hole, and cavity is connected by trip bolt and doorframe.