CN201288464Y

CN201288464Y - Self-locking type hinge structure of porthole

Info

Publication number: CN201288464Y
Application number: CNU2008202106782U
Authority: CN
Inventors: 理查德·威尔康
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-28
Filing date: 2008-09-28
Publication date: 2009-08-12
Anticipated expiration: 2018-09-28

Abstract

The utility model discloses a porthole self-locking type hinge structure, including a conical column, a nylon friction wafer, a retaining screw, a filling piece, a hinge, and a hinge ear holder. The nylon friction wafer is arranged in the hinge and the hinge ear holder, the conical column is arranged in the nylon friction wafer, the retaining screw is screwed in the hinge through screw thread after passing through the filling piece, the nylon friction wafer and the conical column, wherein a plane thrust force ball bearing is arranged between the retaining screw and the nylon friction wafer. The structure ensures the porthole to stay with self-locking at random position after unlocking, the self-locking is reliable, and the adjustment and the maintenance are all convenient.

Description

Porthole self-locking hinge structure

Technical field

The utility model relates to the technology of porthole with hinge, and is especially relevant with the hinge structure that can make the porthole self-locking.

Background technology

Porthole in the past is to adopt hook or hydraulic damper etc., guarantees that porthole is held open state after unlatching, and still, it is big or small that hook or hydraulic damper etc. can not guarantee that porthole is controlled unlatching after unlatching.

In recent years, a kind of employing of novel hinge structure 20, guaranteed can stop arbitrarily after porthole 10 is opened, shown in Fig. 1～3, this hinge structure 20 that stops porthole 10 certainly includes: parts such as tapered pole, nylon friction plate, hold-down screw, pad, hinge, hinge ear frame are formed.The nylon friction plate is enclosed within hinge and the hinge ear frame, and tapered pole is enclosed within the nylon friction plate, and hold-down screw passes pad, nylon friction plate, tapered pole by being screwed on the hinge.Operating principle during normal the use is as follows: by tightening hold-down screw, nylon friction plate and tapered pole are forced together, the nylon friction plate is along with tightening constantly of hold-down screw is stretched, the outer ring of nylon friction plate is close on hinge and the hinge ear frame, and nylon friction plate inner ring then is adjacent on tapered pole.When with hand propelled air port glass frame, extraneous active force is during greater than the frictional force of nylon friction plate and tapered pole or greater than the frictional force of nylon friction plate and hinge, hinge ear frame, and porthole 10 just is able to rotate around hinge center conical column.When hand stopped to promote the air port glass frame, extraneous active force was during less than the frictional force of nylon friction plate and tapered pole or less than the frictional force of nylon friction plate and hinge, hinge ear frame, and the air port glass frame stops operating, and is fixed on the interior optional position of unlatching scope.

The major defect of this hinge structure 20 is: in the process of using, middle hold-down screw porthole 10 open and closed process owing to be subjected to the twisting resistance influence that the nylon friction plate passes over and and then rotate easily, cause hold-down screw loosening, after hold-down screw loosens to a certain degree, frictional force lost efficacy, and the function of this hinge self-locking had also just lost efficacy.Follow rotation in order to prevent hold-down screw, common way is to add screw thread glue at the screw thread position of hold-down screw to fix, but such way has problems too, because the nylon friction plate is after using a period of time, just have the phenomenon of wearing and tearing, cause the unreliable of hinge auto-lock function, need suitable adjustment, the hold-down screw that adds screw thread glue is not easy to adjust, and, the residing zone of boats and ships relatively easily is subjected to the influence of high temperature moisture, and screw thread glue is easily aging, and it is unreliable also to become.

Understand the deficiency of above structure, the present invention improves with the structure of hinge existing porthole, and this case produces thus.

The utility model content

The purpose of this utility model is to provide a kind of porthole self-locking hinge structure, make porthole be able to can the optional position self-locking stop after unlatching, and self-locking is reliable, the convenient adjustment and maintenance.

To achieve these goals, solution of the present utility model is:

Porthole self-locking hinge structure, comprise tapered pole, nylon friction plate, hold-down screw, pad, hinge, hinge ear frame, the nylon friction plate is enclosed within hinge and the hinge ear frame, tapered pole is enclosed within the nylon friction plate, hold-down screw passes pad, nylon friction plate, tapered pole by being screwed on the hinge, wherein: add a thrust ball bearing with flat seat between hold-down screw and nylon friction plate.

Described thrust ball bearing with flat seat is enclosed within the hinge ear frame, and is enclosed within on the hold-down screw, is between pad and the nylon friction plate.

Also increase by one between described hinge and the hinge ear frame and adjust pad, adjust pad and be enclosed within on the tapered pole.

After adopting said structure, the utility model can bear this characteristic of unidirectional axial load according to thrust ball bearing with flat seat, in the course of work of hinge, the frictional force that produces between nylon friction plate and the tapered pole has passed to thrust ball bearing with flat seat, two pads of thrust ball bearing with flat seat relatively rotate, and the frictional force that produces between nylon friction plate and the tapered pole and pass over are offset, like this, hold-down screw causes loosening with regard to not being affected, self-locking is more reliable.Because it is locking that hold-down screw does not need to come by other fixed form again, like this, all brings great convenience to adjusting and safeguarding.

Description of drawings

Fig. 1 is the schematic appearance of porthole;

Fig. 2 is the enlarged drawing of hinge structure among Fig. 1;

Fig. 3 is the breakdown action figure of porthole;

Fig. 4 is a three-dimensional exploded view of the present utility model;

Fig. 5 is an assembled sectional view of the present utility model.

Label declaration

Porthole 10 hinge structures 20

Tapered pole 1 nylon friction plate 2

Hold-down screw 3 pads 4

Hinge 5 hinge ear framves 6

Thrust ball bearing with flat seat 7 is adjusted pad 8

The specific embodiment

See also Fig. 4 and shown in Figure 5, the porthole self-locking hinge structure that the utility model discloses, comprise tapered pole 1, nylon friction plate 2, hold-down screw 3, pad 4, hinge 5, hinge ear frame 6, adding a thrust ball bearing with flat seat 7 between hold-down screw 3 and nylon friction plate 2, specifically is to be between pad 4 and the nylon friction plate 2.Nylon friction plate 2 is enclosed within hinge 5 and the hinge ear frame 6, thrust ball bearing with flat seat 7 also is enclosed within the hinge ear frame 6, tapered pole 1 is enclosed within the nylon friction plate 2, and hold-down screw 3 passes pad 4, thrust ball bearing with flat seat 7, nylon friction plate 2, tapered pole 1 by being screwed on the hinge 5.This embodiment also increases by one and adjusts pad 8 between hinge 5 and hinge ear frame 6, adjust pad 8 and be enclosed within on the tapered pole 1, mainly plays decoration function.

Operating principle when the utility model normally uses is same as the prior art, but, in the course of work of hinge, the frictional force that produces between nylon friction plate 2 and the tapered pole 1 has passed to thrust ball bearing with flat seat 7, two pads of thrust ball bearing with flat seat 7 relatively rotate, frictional force between nylon friction plate 2 and the tapered pole 1 is offset, hold-down screw 3 can be affected and cause loosening, self-locking is more reliable, and, to help other fixed form such as screw thread glue locking because hold-down screw 3 does not need to relend, and greatly facilitates to adjust and safeguard.

Claims

1, porthole self-locking hinge structure, comprise tapered pole, nylon friction plate, hold-down screw, pad, hinge, hinge ear frame, the nylon friction plate is enclosed within hinge and the hinge ear frame, tapered pole is enclosed within the nylon friction plate, hold-down screw passes pad, nylon friction plate, tapered pole by being screwed on the hinge, it is characterized in that: add a thrust ball bearing with flat seat between hold-down screw and nylon friction plate.

2, porthole self-locking hinge structure as claimed in claim 1, it is characterized in that: thrust ball bearing with flat seat is enclosed within the hinge ear frame, and is enclosed within on the hold-down screw, is between pad and the nylon friction plate.

3, porthole self-locking hinge structure as claimed in claim 1 is characterized in that: also increase by one between hinge and the hinge ear frame and adjust pad, adjust pad and be enclosed within on the tapered pole.