CN108360936B

CN108360936B - Ratchet hinge structure with fixed arbitrary angle

Info

Publication number: CN108360936B
Application number: CN201810114552.3A
Authority: CN
Inventors: 俞云祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-02-01
Filing date: 2018-02-01
Publication date: 2023-05-23
Anticipated expiration: 2038-02-01
Also published as: CN108360936A

Abstract

The invention provides a ratchet hinge structure with fixed any angle, which comprises a first hinge and a second hinge, wherein the first hinge is a relative fixing piece for the rotating shaft, the second hinge rotates along with the rotating shaft, a pawl is arranged on the first hinge and is hinged with the first hinge, and an elastic resetting piece is arranged between the pawl and the first hinge. The invention can fix the opening and closing positions of the doors and windows at any angle, and can fold the hinges reversely and smoothly after being opened to the limit.

Description

Ratchet hinge structure with fixed arbitrary angle

Technical Field

The invention relates to the field of hinges, in particular to a ratchet hinge structure with fixed any angle.

Background

When the door and window are opened, the stability of the frame is poor due to the hinge, especially the door and window can swing automatically and even be locked automatically when being blown by strong wind.

In order to solve the above-mentioned problems, a structure of a ratchet hinge has been proposed, such as a five-gear hinge of patent number CN201020277002.2, but it is difficult to perfectly match the cam and the ratchet of the hinge, so that the click is serious, and the smooth opening and closing effect cannot be achieved.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provide a ratchet hinge structure with fixed any angle.

The aim of the invention can be achieved by the following technical scheme: the invention comprises a first hinge and a second hinge which are connected by a rotating shaft, wherein the first hinge is a relatively fixed part aiming at the rotating shaft, the second hinge rotates along with the rotating shaft, a pawl is arranged on the first hinge and hinged with the first hinge, and an elastic reset part is arranged between the pawl and the first hinge.

The armpit groove is provided with an arc, and the arc center of the armpit groove faces to the opposite direction of the circle center of the ratchet wheel.

When the pawl rotates in an elastic reset state, the claw tip of the pawl slides along the radian of the armpit groove.

The hinge I is provided with two connecting seats, a pawl is clamped between the two connecting seats, torsion springs are arranged between the pawl and the connecting seats on two sides, and the torsion springs provide reverse torsion.

And a torsion spring adjusting device is arranged on the first hinge.

The torsion spring adjusting device comprises a bolt, two ends of the torsion spring are connected to the pawl and the connecting seat, the bolt penetrates through the connecting seat, the pawl and the torsion spring, and one end of the bolt pushes the torsion spring to compress the pitch of the torsion spring.

Compared with the prior art, the hinge can be fixed at any opening and closing position of the door and window at a certain angle, and can be folded reversely and smoothly after being opened to the limit. And secondly, the hinge rotates smoothly, and the opening and closing limit tension of the hinge can be adjusted.

Drawings

Further aspects and advantages of the invention will be apparent not only from the claims, but also from the following description of a preferred illustrative embodiment of the invention, which is explained below with reference to the drawings, in which:

FIG. 1 is a schematic illustration of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is an assembled schematic;

FIG. 4 is a schematic view of the pawl and ratchet positions of the hinge in a closed door condition;

FIG. 5 is a schematic view of the positions of the pawl and ratchet wheel when the hinge is in a door opening state;

FIG. 6 is a schematic view of the pawl and ratchet positions of the hinge in a 112 deg. ready to close door;

FIG. 7 is a schematic view of the positions of the pawl and ratchet wheel when the hinge is in a door closing process state;

FIG. 8 is a schematic view of the positions of the pawl and ratchet wheel when the hinge is in a door-closed state;

in the figure, a hinge II, a hinge I, a rotating shaft 3, a hinge connecting piece 4, a countersunk head screw 5, a pawl 6, a ratchet wheel 7, a bearing 8, a torsion spring I, a bolt 10, a torsion spring 11, a torsion spring II, a torsion spring 12 and an armpit groove.

Detailed Description

The invention is further described below with reference to the drawings and examples.

The invention is shown in fig. 1-3, and comprises a first hinge 2 and a second hinge 1, wherein a hinge connecting piece 4 is connected to the second hinge 1, and a countersunk screw 5 is arranged on the hinge connecting piece 4. The hinge I2 and the hinge II 1 are connected through the rotating shaft 3, the hinge II 1 rotates along with the rotating shaft 3, the rotating shaft 3 is connected with the bearing 8, and meanwhile, the hinge I2 is also connected with the rotating shaft 3.

The hinge I2 is provided with two connecting seats, a pawl 6 is clamped between the two connecting seats, a torsion spring I9 and a torsion spring II 11 are arranged between the pawl 6 and the connecting seats on two sides, and reverse torsion force is provided through the torsion spring I9 and the torsion spring II 11. The hinge I2 is further provided with a torsion spring adjusting device, the torsion spring adjusting device comprises a bolt 10, two ends of the torsion spring are connected to the pawl 6 and the connecting seat, the bolt 10 penetrates through the connecting seat, the pawl 6, the torsion spring I9 and the torsion spring II 11, the bolt 10 is in threaded connection with the connecting seat, one end of the bolt 10 pushes the torsion spring I9, and the torsion spring I9, the pawl 6 and the torsion spring II 11 move to one side. At this time, the pitch of the torsion spring is compressed, and the torsion force of the torsion spring is changed by compressing the pitch of the torsion spring.

The rotating shaft 3 is provided with a ratchet wheel 7, the distribution range of ratchets on the ratchet wheel 7 accounts for 1/6-1/3 of the circumference of the ratchet wheel 7, and armpit grooves 12 are respectively arranged at the terminal ends of two sides of continuous ratchets on the ratchet wheel 7. The armpit groove 12 has an arc shape, and the arc center of the armpit groove 12 faces to the opposite direction of the circle center of the ratchet wheel 7. In the elastic reset state of the pawl 6, when the ratchet wheel 7 rotates, the claw tip of the pawl 6 slides along the radian of the armpit groove 12, and the pawl 6 only acts when being lifted under the elastic action.

As shown in fig. 4-8, the stopping of the hinge at different angles is realized through the pawl 6, the ratchet 7, the torsion spring I9 and the torsion spring II 11. The force of the first torsion spring 9 and the second torsion spring 11 can be adjusted by the tightness of the bolt 10. The pawl 6 is meshed with the ratchet wheel 7 by the acting force of the torsion spring II 11. When the hinge is unfolded, the unidirectional movement of the ratchet wheel 7 mechanism is utilized to realize the stopping of the hinge at different angles. When the unfolding angle of the hinge reaches 112 degrees, the pawl 6 runs through the last tooth, and the torsion spring II 11 is restored to the elastic initial state, and the pawl 6 is not stressed. The ratchet wheel 7 can move reversely, the pawl 6 is pushed down by the acting force of the ratchet, and the torsion spring 9 begins to bear force. Finally, when the door is closed, the first torsion spring 9 loses acting force and returns to an elastic initial state, and at the moment, the door can be opened again.

It is to be understood that the above examples only represent preferred embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the invention; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. The utility model provides a ratchet hinge structure that arbitrary angle is fixed, includes hinge one and hinge two, is connected by the pivot between hinge one and the hinge two, hinge one be the relative fixed part to the pivot, hinge two rotate along with the pivot, hinge one on be equipped with the pawl, pawl and hinge one are articulated, be equipped with the elasticity piece that resets between pawl and hinge one, its characterized in that, the pawl can forward and reverse rotation and by forward and reverse elasticity spacing, be equipped with the ratchet in the pivot, the ratchet on the ratchet ranges from 1/6 ~ 1/3 of ratchet circumference, each is equipped with the armpit groove in the both sides termination department of continuous ratchet on the ratchet, the armpit groove have the radian, the armpit groove arc heart orientation is opposite with the ratchet centre of a circle, the pawl under the elasticity state that resets, the pawl's the pawl point slides along the armpit radian when ratchet rotates.

2. The ratchet hinge structure according to claim 1, wherein the first hinge is provided with two connection seats, a pawl is clamped between the two connection seats, torsion springs are arranged between the pawl and the connection seats on two sides, and the torsion springs provide reverse torsion force.

3. The ratchet hinge structure according to claim 2, wherein the first hinge is provided with two connection seats, a pawl is clamped between the two connection seats, torsion springs are arranged between the pawl and the connection seats at two sides, and the torsion springs provide reverse torsion force.

4. A ratchet hinge structure with fixed angle according to claim 3, wherein a torsion spring adjusting device is arranged on the first hinge.

5. The ratchet hinge structure with fixed angle according to claim 4, wherein the first hinge is provided with a torsion spring adjusting device.

6. The ratchet hinge structure according to claim 5, wherein the torsion spring adjusting device comprises a bolt, two ends of the torsion spring are connected to the pawl and the connecting seat, the bolt penetrates through the connecting seat, the pawl and the torsion spring, and one end of the bolt pushes the torsion spring to compress the pitch of the torsion spring.

7. The ratchet hinge structure according to claim 6, wherein the torsion spring adjusting device comprises a bolt, two ends of the torsion spring are connected to the pawl and the connecting seat, the bolt penetrates through the connecting seat, the pawl and the torsion spring, and one end of the bolt pushes the torsion spring to compress the pitch of the torsion spring.