CN108150031B

CN108150031B - Door positioning system

Info

Publication number: CN108150031B
Application number: CN201711137005.9A
Authority: CN
Inventors: 李炳银; 蔡河山; 黎晓霞
Original assignee: Foshan University
Current assignee: Foshan University
Priority date: 2017-11-16
Filing date: 2017-11-16
Publication date: 2020-07-14
Anticipated expiration: 2037-11-16
Also published as: CN108150031A

Abstract

The invention discloses a door positioning system, which comprises a positioning switch, a control circuit and a door positioning device for fixing a door leaf, wherein the positioning switch is connected with the control circuit; when the positioning switch is triggered, an electric signal is sent to the control circuit; an unlocking condition is arranged in the control circuit, and when an electric signal sent to the control circuit by the positioning switch meets the unlocking condition, the control circuit controls the door positioning device to loosen the door leaf; when the electric signal sent to the control circuit by the positioning switch does not meet the unlocking condition, the control circuit controls the door positioning device to fix the door leaf. The door positioning system can fix the door leaf at any position through the door positioning device, and the door leaf can be loosened only by triggering the positioning switch and according with the unlocking condition of the control circuit, so that the door leaf is not easy to unlock by children.

Description

Door positioning system

Technical Field

The invention relates to a control system of a door, in particular to a door positioning system which can enable a door leaf to be positioned at any position in the opening and closing process.

Background

Currently, a door is usually fixed at two positions, namely a closed position and a maximum opening angle. In certain specific occasions in real life, the door needs to be opened to a specific position, such as only one gap is left, or half of the door is opened; however, when the door is opened only at a certain angle, the door is closed suddenly under the action of external force, such as wind. Therefore, in real life, especially when the family is a young child, the door fixer is often used to fix the door leaf in an open state, so as to avoid the accident that the child is pinched by the door.

There are two types of door holders currently on the market. One type is a wedge-shaped door plug, when the door leaf is opened, the wedge-shaped door plug is embedded into a gap between the door leaf and the bottom surface, so that the movement of the door leaf can be limited in a single direction; however, such a door plug has a limit to a distance between the door leaf and the bottom surface, and when the distance is large, the door plug cannot limit the movement of the door leaf, or a small child can easily take out the door plug, so that the door leaf cannot be fixed. The other type is a foot-operated door stopper which is arranged on a door leaf, when the door leaf is opened to a proper position, people can hold the ground by stepping on the door leaf with feet, so that the door leaf is fixed at the proper position; however, such door stoppers are often mounted close to the floor and are also easily unlocked by children.

Therefore, there is a need for a door positioning system that can secure a door leaf in a specific position and is not easily unlocked by a child.

Disclosure of Invention

It is an object of the present invention to provide a door positioning system which effectively solves the above problems.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a door positioning system, comprising: the door comprises a positioning switch, a control circuit and a door positioning device for fixing a door leaf, wherein the positioning switch is connected with the control circuit, and the control circuit is connected with the door positioning device; when the positioning switch is triggered, an electric signal is sent to the control circuit; an unlocking condition is arranged in the control circuit, and when an electric signal sent to the control circuit by the positioning switch meets the unlocking condition, the control circuit controls the door positioning device to loosen the door leaf; when the electric signal sent to the control circuit by the positioning switch does not meet the unlocking condition, the control circuit controls the door positioning device to fix the door leaf.

In some specific embodiments, the positioning switch is a positioning button disposed on the door leaf handle; the control circuit includes: the positioning button is connected with the interface circuit, and the interface circuit is connected with the controller. When a user needs to open or close the door leaf, the positioning button is pressed, the interface circuit transmits an electric signal to the controller, the controller judges whether an unlocking condition is met or not after receiving the electric signal, and when the unlocking condition is met, the door leaf is loosened by the door positioning device; when the door leaf is opened or closed to a proper position, the user releases the positioning button and the door leaf is fixed to the proper position.

In some specific embodiments, the positioning switch is a strain gauge or a human body touch sensor arranged on a door leaf handle; the control circuit includes: the device comprises a measuring circuit connected with the strain gauge, a signal amplifying circuit connected with the measuring circuit and a controller connected with the signal amplifying circuit. When a user needs to open or close the door leaf, the strain gauge deforms and the resistance value of the strain gauge changes only by pushing or pulling the door handle, the measuring circuit amplifies and adjusts the detected electric signal and transmits the amplified and adjusted electric signal to the controller, the controller judges whether an unlocking condition is met or not after receiving the electric signal, and when the electric signal is met, the controller controls the electric push rod to move forwards or backwards to loosen the door leaf; when the door leaf is opened or closed to a proper position, the user releases the door leaf handle, and the door leaf is fixed to the proper position.

The unlocking conditions preset in the controller are as follows: the unlocking conditions preset in the controller are as follows: the controller continues to receive the electrical signal from the interface circuit for 0.3 seconds or more and the unlocking is suspended once the electrical signal is interrupted.

In some embodiments, the door positioning device comprises: a connecting rod and a locking device; one end of the connecting rod is connected to the door leaf or the door frame, and the other end of the connecting rod is connected with the locking device; the locking device comprises: the connecting rod penetrates through the clamping mechanism, and the power mechanism drives the clamping mechanism to loosen or clamp the connecting rod; when the clamping mechanism clamps the connecting rod, the connecting rod and the locking device are relatively static, and the door leaf is fixed; when the clamping mechanism loosens the connecting rod, the connecting rod moves freely, and the door leaf is opened and closed randomly. It should be noted that the connecting rod may be a curved rod, and may also be a straight rod.

Further, the clamping mechanism includes: the connecting rod is arranged in the positioning channel in a penetrating mode; the first clamping piece is fixed on the base; the base is provided with a guide groove, the second clamping piece is provided with a guide block, the guide block is matched with the guide groove, and the second clamping piece slides along the guide groove under the action of external force; a spring fixing piece is further arranged on the guide groove, and a return spring is arranged between the spring fixing piece and the second clamping piece; the return spring is in a compressed state and pushes the second clamping piece to clamp the connecting rod.

Furthermore, the power mechanism is an electric push rod, the electric push rod is fixed on the base, and the push rod of the electric push rod is opposite to the second clamping piece; when the push rod advances, the push rod pushes the second clamping piece to move away from the connecting rod, the return spring is further compressed, and the connecting rod is loosened; when the push rod retreats, the second clamping piece returns to the initial position under the action of the elastic force of the return spring to clamp the connecting rod.

Further, one end, close to the connecting rod, of the first clamping piece and one end, close to the connecting rod, of the second clamping piece are provided with brake pads.

In some embodiments, the door positioning device further comprises: the door comprises a connecting rod, a rotating wheel, a locking device and an electric push rod, wherein one end of the connecting rod is connected with the rotating wheel, and the other end of the connecting rod is connected to a door leaf or a door frame; the electric push rod comprises a push rod and a chuck connected with the push rod; the locking device is arranged on the chuck, and when the push rod retreats or advances, the locking device is separated from the rotating wheel, the rotating wheel rotates freely, and the door leaf is opened and closed arbitrarily; when the push rod moves forwards or backwards, the locking device locks the rotating wheel, the rotating wheel stops rotating, and the door leaf is fixed.

Further, locking device is the ware of stopping, and it includes first connection mounting, the one end of first connection mounting with the chuck is connected, and the brake block is installed to the other end, the brake block with the carousel contact of rotating the wheel.

Further, the rotating wheel is a rotating gear, and the rotating gear comprises a first rotating disc and a first gear ring arranged on the first rotating disc; the locking device is a locking brake gear, the locking brake gear comprises a second rotary table and a second gear ring arranged on the second rotary table, and the first gear ring is matched with the second gear ring.

Compared with the prior art, the invention has the following technical effects:

the door positioning system comprises a positioning switch, a control circuit and a door positioning device for fixing a door leaf, wherein the positioning switch is connected with the control circuit, and the control circuit is connected with the door positioning device; when the positioning switch is triggered, an electric signal is sent to the control circuit; according to the invention, the unlocking condition is preset in the control circuit, when the electric signal sent to the control circuit by the positioning switch meets the unlocking condition preset in the control circuit, the control circuit controls the door positioning device to loosen the door leaf, so that the door leaf can be freely moved, and the door leaf is not easily unlocked by children when being fixed at any position.

Further, the door positioning device comprises a connecting rod and a locking device; the locking device comprises a clamping mechanism and a power mechanism, one end of the connecting rod is connected to the door leaf or the door frame, the other end of the connecting rod penetrates through the clamping mechanism, and the clamping mechanism is driven by the power mechanism to loosen or clamp the connecting rod; when the door leaf is opened to any position, the clamping mechanism can clamp the connecting rod to fix the door leaf, so that the door leaf can be positioned at any position.

In another aspect, the present invention is another door positioning device comprising a connecting rod, a rotatable wheel, an electrically powered push rod, and a locking device; one end of the connecting rod is connected with the rotating wheel, and the other end of the connecting rod is connected to the door leaf or the door frame; the electric push rod comprises a push rod and a chuck connected with the push rod, the locking device is arranged on the chuck, and the locking device is locked or separated from the rotating wheel by the forward or backward movement of the push rod, so that the door leaf is fixed at any position in the opening process.

For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic configuration diagram of a door positioning system according to embodiment 1 of the present invention;

FIG. 2 is a schematic structural view of a door positioning system according to embodiment 2 of the present invention;

FIG. 3 is a schematic structural view of a first embodiment of the door positioning device of the present invention;

fig. 4 is a schematic structural view of a locking device of a first embodiment of the door positioning device of the present invention;

FIG. 5 is a schematic structural view of a second clamping member of the first embodiment of the door positioning device of the present invention;

FIG. 6 is a schematic view of a mounting plan of a second embodiment of the door positioning device of the present invention;

fig. 7 is a schematic structural view of a second embodiment of the door positioning device of the present invention.

Detailed Description

Example 1

Referring to fig. 1, a door positioning system includes: the door comprises a positioning switch 100, a control circuit 200 and a door positioning device 300 for fixing a door leaf 400, wherein the positioning switch 100 is connected with the control circuit 200, and the control circuit 200 is connected with the door positioning device 300; when the positioning switch 100 is triggered, an electrical signal is sent to the control circuit 200; an unlocking condition is set in the control circuit 200, and when the electric signal sent to the control circuit 200 by the positioning switch 100 meets the unlocking condition, the control circuit 200 controls the door positioning device 300 to release the door leaf 400; when the electric signal sent to the control circuit 200 by the positioning switch 100 does not satisfy the unlocking condition, the control circuit 200 controls the door positioning device 300 to fix the door leaf 400.

Specifically, the positioning switch 100 is a positioning button 110 disposed on a handle of the door leaf 400; the control circuit 200 includes: an interface circuit 220 and a controller 210, the positioning button 110 is connected with the interface circuit 220, and the interface circuit 220 is connected with the controller 210. When a user needs to open or close the door leaf 400, the positioning button 110 is pressed, the interface circuit 220 transmits an electric signal to the controller 210, the controller 210 determines whether an unlocking condition is met after receiving the electric signal, and when the unlocking condition is met, the door positioning device 300 is controlled to release the door leaf 400; when the door leaf 400 is opened or closed to a proper position, the user releases the position button 110 and the door leaf 400 is fixed to the proper position.

The preset unlocking conditions in the controller 210 are as follows: the interface circuit continues to emit electrical signals for 3 seconds or more. It should be noted that this does not represent a limitation on the unlocking condition, which may also be set by the user.

Referring to fig. 3, preferably, the door positioning device 300 includes: the door comprises a connecting rod 310 and a locking device 320, wherein one end of the connecting rod 310 is connected to a door leaf 400 or a door frame 500, and the other end of the connecting rod 310 is connected with the locking device 320; the locking device 320 includes: the connecting rod penetrates through the clamping mechanism 330, and the power mechanism 340 drives the clamping mechanism 330 to loosen or clamp the connecting rod 310; when the clamping mechanism 330 clamps the connecting rod 310, the connecting rod 310 and the locking device 320 are relatively static, and the door leaf 400 is fixed; when the clamping mechanism 330 releases the link 310, the link 310 is freely moved and the door leaf 400 is arbitrarily opened and closed. It should be noted that the connecting rod may be a curved rod, and may also be a straight rod.

Referring to fig. 4-5, preferably, the clamping mechanism 330 includes: the clamp comprises a base 331, a first clamping piece 332 and a second clamping piece 333 which are respectively arranged at two ends of the base 331, wherein a positioning channel 334 is formed by a gap between the first clamping piece 332 and the second clamping piece 333, and the connecting rod 310 is arranged in the positioning channel 334 in a penetrating way; the first clamping member 332 is fixed to the base 331; a guide groove 335 is formed in the base 331, a guide block 336 is formed in the second clamping member 333, the guide block 336 is matched with the guide groove 335, and the second clamping member 333 slides along the guide groove 335 under the action of external force; a spring fixing part 337 is further disposed on the guide groove 335, and a return spring 338 is disposed between the spring fixing part 337 and the second clamping part 333; the return spring 338 is under compression and urges the second clamp 333 to clamp the rod 310.

Preferably, the power mechanism 340 is an electric push rod 341, the electric push rod 341 is fixed on the base 331, and a push rod 342 of the electric push rod 341 faces the second clamping member 333; when the push rod 342 advances, the push rod 342 pushes the second clamp 333 to move away from the link 310, the return spring 338 is further compressed, and the link 310 is released; when the push rod 342 is retracted, the second clamping member 333 returns to the initial position by the elastic force of the return spring 338 to clamp the link 310.

Preferably, one ends of the first and

second clamping members

332 and 333 adjacent to the link 310 are provided with a brake pad 339.

Additionally, the door positioning device has another embodiment comprising: the door comprises a connecting rod 350, a rotating wheel 360, a locking device 370 and an electric push rod 380, wherein one end of the connecting rod 350 is connected with the rotating wheel 360, and the other end of the connecting rod is connected to a door leaf 400 or a door frame 500; the electric push rod 380 comprises a push rod 381 and a chuck 382 connected with the push rod 381; the locking device 370 is arranged on the clamping head 382, when the push rod 381 moves back or forward, the locking device 370 disengages from the rotating wheel 360, the rotating wheel 360 rotates freely, and the door leaf 400 is opened or closed arbitrarily; when the push rod 381 moves forward or backward, the locking device 370 locks the rotating wheel 360, the rotating wheel 360 stops rotating, and the door leaf 400 is fixed.

Preferably, the locking device 370 is a parking brake, and includes a first connection fixture 371, one end of the first connection fixture 371 is connected to the clamping head 382, and the other end is mounted with a brake pad 372, and the brake pad 372 is in contact with a rotating disc of the rotating wheel 360.

Preferably, the rotating wheel is a rotating gear, and the rotating gear comprises a first rotating disc and a first gear ring arranged on the first rotating disc; the locking device is a locking brake gear, the locking brake gear comprises a second rotary table and a second gear ring arranged on the second rotary table, and the first gear ring is matched with the second gear ring. It should be noted that, in the drawings, the door closer of the embodiment using the rotation gear is not shown, without affecting understanding.

Example 2

The technical solution described in this embodiment is basically the same as that of embodiment 1, and the difference is that:

referring to fig. 4, the positioning switch 100 is a strain gauge 120 disposed on a handle of a door 400, or a human touch sensor disposed on the handle of the door 400; the control circuit 200 includes: a measuring circuit 230 connected to the strain gauge or the human touch sensor 120, a signal amplifying circuit 240 connected to the measuring circuit 230, and a controller 210 connected to the signal amplifying circuit. When a user needs to open or close the door leaf 400, the strain gauge 120 deforms or triggers the human body touch sensor, the resistance value of the strain gauge changes by only pushing or pulling the door handle, the measuring circuit 230 amplifies and adjusts the detected electric signal and transmits the amplified and adjusted electric signal to the controller 210, the controller 210 judges whether the unlocking condition is met or not after receiving the electric signal, and when the unlocking condition is met, the door positioning device 300 is controlled to loosen the door leaf 400; when the door leaf 400 is opened or closed to a proper position, the user releases the position button 110 and the door leaf 400 is fixed to the proper position.

The preset unlocking conditions in the controller 210 are as follows: the interface circuit continues to send out electrical signals for 0.3 seconds or more. It should be noted that this does not represent a limitation on the unlocking condition, which may also be set by the user.

The present invention is not limited to the above-described embodiments, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.

Claims

1. A door positioning system, comprising:

the door comprises a positioning switch, a control circuit and a door positioning device for fixing a door leaf, wherein the positioning switch is connected with the control circuit, and the control circuit is connected with the door positioning device;

when the positioning switch is triggered, an electric signal is sent to the control circuit;

an unlocking condition is arranged in the control circuit, and when an electric signal sent to the control circuit by the positioning switch meets the unlocking condition, the control circuit controls the door positioning device to loosen the door leaf; when the electric signal sent to the control circuit by the positioning switch does not meet the unlocking condition, the control circuit controls the door positioning device to fix the door leaf;

the door positioning device comprises a connecting rod and a locking device;

one end of the connecting rod is connected to the door leaf or the door frame, and the other end of the connecting rod is connected with the locking device;

a clamping mechanism and a power mechanism are arranged in the locking device, the clamping mechanism comprises a base, a first clamping piece fixed on the base, a second clamping piece connected to the base in a sliding manner, and a return spring, and two ends of the return spring are respectively connected with the second clamping piece and the base;

the connecting rod is arranged in a gap between the first clamping piece and the second clamping piece in a penetrating mode; when the door positioning device releases the door leaf, the second clamping piece releases the connecting rod under the driving of the power mechanism;

when the door positioning device fixes the door leaf, the second clamping piece is driven by the return spring to clamp the connecting rod.

2. The door positioning system of claim 1, wherein:

the positioning switch is a positioning button arranged on the door leaf handle;

the control circuit includes: the positioning button is connected with the interface circuit, and the interface circuit is connected with the controller.

3. The door positioning system of claim 1, wherein:

the positioning switch is a strain gauge or a human body touch sensor arranged on the door leaf handle;

the control circuit includes: the device comprises a measuring circuit connected with the strain gauge or the human body touch sensor, a signal amplifying circuit connected with the measuring circuit, and a controller connected with the signal amplifying circuit.

4. A door positioning system as claimed in any one of claims 1 to 3, wherein:

the clamping mechanism includes: a base;

the first clamping piece is fixed on the base;

the base is provided with a guide groove, the second clamping piece is provided with a guide block, the guide block is matched with the guide groove, and the second clamping piece slides along the guide groove under the action of external force.

5. The door positioning system of claim 4, wherein:

and the guide groove is also provided with a spring fixing piece for fixing the reset spring.

6. The door positioning system of claim 4, wherein:

the power mechanism is an electric push rod which is fixed on the base, and the push rod of the electric push rod is opposite to the second clamping piece;

when the push rod advances, the push rod pushes the second clamping piece to move away from the connecting rod, the return spring is further compressed, and the connecting rod is loosened; when the push rod retreats, the second clamping piece returns to the initial position under the action of the elastic force of the return spring to clamp the connecting rod.

7. The door positioning system of claim 6, wherein:

and brake pads are arranged at one ends of the first clamping piece and the second clamping piece, which are close to the connecting rod.