CN112943013B

CN112943013B - Door hinge and door with automatic locking function

Info

Publication number: CN112943013B
Application number: CN201911257476.2A
Authority: CN
Inventors: 贺桢亮
Original assignee: Jiangxi Dafa Door Industry Co ltd
Current assignee: Jiangxi Dafa Door Industry Co ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2022-12-13
Anticipated expiration: 2039-12-10
Also published as: CN112943013A

Abstract

The invention discloses a door hinge with an automatic locking function, which belongs to the field of hardware building materials and comprises a first hinge and a second hinge, wherein the first hinge is movably connected with the second hinge; a locking groove which is arranged on the upper surface of any one rotating shaft of the first folding leaf and the second folding leaf, a locking component is arranged on the other one of the first folding leaf and the second folding leaf in a sliding way along the linear direction of the other one of the first folding leaf and the second folding leaf, and a convex block which is embedded with the locking groove is arranged on the locking component; and the output end of the driving device can drive the locking component to enable the convex block on the locking component to be separated from the state of being embedded with the locking groove. The invention provides a door hinge capable of automatically locking, which can automatically lock after the hinge is static for a period of time so as to achieve the effect of fixing the hinge or a door fixedly provided with the hinge.

Description

Door hinge and door with automatic locking function

Technical Field

The invention relates to the field of hardware building materials, in particular to a door hinge with an automatic locking function.

Background

Hinges are mechanical devices used to connect two solid bodies and allow relative rotation between them. The hinge may be constructed of a movable component or may be constructed of a foldable material. The hinges are mainly arranged on doors and windows, more hinges are arranged on cabinets, and the hinges are mainly classified into stainless steel hinges and iron hinges according to the material; hydraulic hinge has appeared again for letting people obtain better enjoyment, and its characteristics bring buffer function when the cabinet door is closed, the noise that sends with the cabinet body collision when furthest having reduced the cabinet door and closing. A damping hinge is also provided, which has a large resistance when rotating, so that the rotating speed of the door body can be prevented from being too high.

However, the hinge in the prior art lacks a hinge with an automatic locking function, namely the hinge is automatically locked after being static for a period of time, and the hinge can still normally operate after the hinge is in a contact locking state. The door with the hinge is automatically locked and fixed no matter how many angles the door rotates, and a period of time after the door is opened.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provided is a door hinge having an automatic locking function, which can freely rotate in an initial state and automatically lock after standing for a certain period of time.

The technical scheme adopted by the invention is as follows: the door hinge with the automatic locking function comprises a first hinge and a second hinge, wherein the first hinge is movably connected with the second hinge; a locking groove which is arranged on the upper surface of any one rotating shaft of the first folding leaf and the second folding leaf, a locking component is arranged on the other one of the first folding leaf and the second folding leaf in a sliding way along the linear direction of the other one of the first folding leaf and the second folding leaf, and a convex block which is embedded with the locking groove is arranged on the locking component; the output end of the driving device can drive the locking component to enable the lug on the locking component to be separated from the state of being embedded with the locking groove.

After the structure is adopted, when the sliding component is at the initial position, the convex block is not embedded with the locking groove, after the hinge stops rotating for a period of time, namely after the hinge stands for a period of time, the locking component gradually moves downwards under the action of gravity, the convex block is embedded with the locking groove in the moving process, the hinge is locked, and in order to enable the hinge to be separated from the locking state, the driving device jacks up the locking component to move upwards to the initial state, and the hinge can normally operate. The invention has the following advantages: 1) The output shaft of the driving device indirectly works, and the door hinge has the function of automatic locking; 2) The output shaft of the driving device jacks up the locking part for a long time, the hinge can work as a conventional hinge, and the function of automatically locking the opening and closing door hinge can be changed by changing the running mode of the driving device; 3) The hinge is simple and compact in structure, small in processing difficulty, low in production cost and capable of being applied on a large scale.

Preferably, the locking grooves are spline holes, the lugs are correspondingly splines, and the splines are mature in technology and easy to machine.

Preferably, the projection is of a unidirectional rotation structure, the spline is arranged on the outer surface of the structure, the hinge of the unidirectional rotation structure is applied, only one direction is locked, and the other direction can continue to rotate.

Preferably, the unidirectional rotation structure is a unidirectional rotation shaft or a unidirectional rotation bearing.

Preferably, a sliding block is arranged on the locking component, a sliding rail is arranged on the first hinge or the second hinge along the linear direction, the sliding block is connected with the sliding rail in a sliding manner, and the sliding block is used for sliding the locking component on the first hinge or the second hinge.

Preferably, the outer surface of the sliding block and/or the sliding rail is provided with a friction layer, the sliding time of the sliding block from one end of the sliding rail to the other end of the sliding rail is at least 1 second, and the time is the standing time of the hinge.

Preferably, the driving device can only drive the locking part to move in one direction, that is, the driving device and the locking part are not directly linked, and the driving device can only drive the projection to slide upwards or downwards when the hinge is locked, so that the locking part slides downwards or upwards after the hinge is separated from the locking state.

Preferably, the driving device is driven by an electric motor, a pneumatic motor or a hydraulic motor, the three technologies are mature, and the number of standard parts in practical application is large.

A door provided with a door hinge is characterized in that a door leaf is connected with a door frame through the door hinge, a door lock is arranged on the door leaf, and the door lock is connected with a driving device.

After adopting above-mentioned structure, the door of installing the hinge has the function of automatic locking, and after the door leaf is static for a period, the hinge automatic locking, and the door leaf can not normally rotate, can do fixed effect, installs the door of this door hinge promptly and need not to install door stopper or door attenuator again, when opening the handle on lock or the lock, drive arrangement work jack-up locking part rebound, and the hinge breaks away from the locking state, and the door leaf can the free rotation.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIGS. 4 and 5 are schematic structural views in example 2;

FIG. 6 is a top view of the splined bore of the present invention;

fig. 7 is a structural schematic of a door to which the present invention is mounted.

The reference numbers in the figures illustrate:

wherein 1, a first fold; 2. a second fold; 3. a locking groove; 4. a locking member; 5. a spline; 6. a slide rail; 7. a drive device; 8. a slider; 9. a door leaf; 10. a door frame; 11. and (4) door lock.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

The locking member 4 of the present invention is a member that moves downward after a period of rest by its own weight at least as great as the amount of force that allows the projection to slide into and engage the locking groove.

Example 1

As shown in fig. 1-3, the first hinge 1 and the second hinge 2 are movably connected, the two are connected to a rotating shaft, the number of the locking parts 4 is at least one, the second hinge 2 is vertically provided with a slide rail 6, a slide block 8 mounted on the locking part 4 is movably connected with the slide rail 6, and a driving device 7 is mounted on the second hinge 2. The initial position of the slider 8 on the slide rail 6 is above the slide rail 6, and the spline 5 on the lock member 4 does not fit into the lock groove 3. Even if the bottom end of the spline 5 is close to the upper end of the locking groove 3, the spline 5 is difficult to be directly fitted into the locking groove 3 due to the relative rotation between the first sheet 1 and the second sheet 2. Only in the static state of the hinge, the locking part 4 slides downwards under the action of gravity, and the spline 5 is embedded into the locking groove 3 to achieve the purpose of locking. To release the locked state of the hinge, the output end of the driving device 7 is retracted after the output end of the driving device 7 lifts up the slider 8 to the initial position. The driving device 7 can only jack up the locking component 4 in one direction to move upwards, so that the driving device 7 is prevented from directly controlling the up-and-down movement of the sliding block 8, and the output end of the driving device 7 is not directly connected with the sliding block 8.

In some examples, a friction layer is provided on the contact surface of the slider 8 and/or the slide rail 6 to increase the friction between the two, so as to increase the time taken for the slider 8 to slide downward from the initial position, which is at least 1 second.

In some examples, the time taken for the slider 8 to slide down from the initial position is 30 seconds.

In some examples, the driving device 7 is a device with an output end running in a straight line, such as a stepping motor, a pneumatic telescopic rod or a hydraulic rod.

In some examples, the projection on the bottom surface of the locking member 4 is a one-way rotation shaft or a one-way rotation bearing, and the spline 5 is provided on the surface thereof such that the spline 5 is fitted into the locking groove 3, and the hinge can still rotate in one direction while being in a locked state in the other direction.

As shown in fig. 4, the locking member 4 is only arranged on the upper side of the second hinge 2.

As shown in fig. 5, the locking member 4 is provided only on the lower side of the second hinge 2.

Example 2

As shown in fig. 7, in the present embodiment, the door frame 10 and the door 9 are connected by the hinge in embodiment 1, and when the door 9 with the hinge is at the initial position, the slider 8 is positioned above the slide rail 6, the spline 5 is not fitted in the locking groove 3, the hinge is rotatable, and further, the door 9 and the door frame 10 are rotatable with each other. After the door leaf 9 has been stationary for a while, the locking part 4 is gradually slid downwards under the influence of gravity, so that the splines 5 engage in the locking grooves 3 and the hinge is locked. The door leaf 9 is in a locked state relative to the door frame 10, and in some examples, the door leaf 9 is in a locked state relative to the door frame 10 in one direction, and can rotate freely in the other direction. When the locking state of the hinge needs to be released, the door lock 11 on the door 9 or the handle on the rotary door lock 11 is opened, the door lock 11 or the door handle is connected with the driving device 7 in a wired or wireless mode, the driving device 7 is controlled to operate, the output shaft of the driving device 7 jacks up the locking component 4, and the locking of the hinge is released.

The foregoing has described preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary, and various changes made within the scope of the independent claims of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a door hinge with automatic locking function which characterized in that: comprises that

The folding device comprises a first folding page (1) and a second folding page (2), wherein the first folding page (1) is movably connected with the second folding page (2);

the locking groove (3) is formed in the upper surface of any one of the first hinge (1) and the second hinge (2), a locking component (4) is installed on the other one of the first hinge (1) and the second hinge (2) in a sliding mode along the linear direction of the other one of the first hinge (1) and the second hinge (2), and a protruding block which is embedded into the locking groove (3) is arranged on the locking component (4);

the output end of the driving device (7) can drive the locking component (4) to enable the convex block on the locking component (4) to be separated from the state of being embedded with the locking groove (3); the driving device (7) can only jack up the locking component (4) in one direction to move upwards;

a sliding block (8) is arranged on the locking part (4), a sliding rail (6) is arranged in the first folding sheet (1) or the second folding sheet (2) along the linear direction, and the sliding block (8) is connected with the sliding rail (6) in a sliding manner;

the outer surface of the sliding block (8) and/or the sliding rail (6) is/are provided with a friction layer, the time for the sliding block (8) to slide from one end of the sliding rail (6) to the other end is at least 1 second, the time is the time for the hinge to stand, after the hinge stands for a period of time, the locking part gradually moves downwards under the action of gravity, and the convex block is embedded with the locking groove (3) in the moving process.

2. A door hinge with automatic locking function according to claim 1, characterized in that: the locking groove (3) is a spline (5) hole, and the lug is correspondingly a spline (5).

3. A door hinge with automatic locking function according to claim 2, characterized in that: the lug is of a one-way rotating structure, and the spline (5) is arranged on the outer surface of the structure.

4. A door hinge with automatic locking function according to claim 3, characterized in that: the unidirectional rotation structure is a unidirectional rotation shaft or a unidirectional rotation bearing.

5. A door hinge with an automatic locking function according to any one of claims 1 to 4, wherein: the driving device (7) is driven by electric power, pneumatic power or hydraulic pressure.

6. A door equipped with a door hinge with an automatic locking function according to any one of claims 1 to 4, comprising a door leaf (9) and a door frame (10), characterized in that: the door leaf (9) is connected with the door frame (10) through a door hinge, a door lock (11) is installed on the door leaf (9), and the door lock (11) is connected with the driving device (7).