CN210564020U

CN210564020U - Intelligent door closing device

Info

Publication number: CN210564020U
Application number: CN201920506219.7U
Authority: CN
Inventors: 常家珩
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-15
Filing date: 2019-04-15
Publication date: 2020-05-19
Anticipated expiration: 2029-04-15

Abstract

An intelligent door closing device is characterized in that a clamping device and a switching system thereof are arranged behind a door (1), and the clamping device is positioned between the door (1) and an inner door frame (3) and is respectively connected with the door (1) and the inner door frame (3) through a supporting component; the switch system comprises a PLC control unit, a trigger and an actuating mechanism, wherein the trigger is an object recognition sensor and is arranged on the surface or the periphery of the door (1) and the door frame, and the actuating mechanism is arranged near the clamping device; the support component where the clamping device is located is provided with a return device, the return device is installed in front of or behind the clamping device, and acting force applied to the clamping device is opposite to that of the actuating mechanism. The utility model discloses intelligence door closing device through opening and closing of the nimble control gate of simple mechanical structure, when the people stands under the door, the door keeps the open mode, when people keep away from, door self-closing, the stable performance, with low costs, application scope is wide.

Description

Intelligent door closing device

Technical Field

The utility model relates to an automatic control technical field especially relates to an intelligence door closing device.

Background

The door is an entity for dividing a limited space and is used for connecting and closing the entrance of two or more spaces. In our life, the door is a visible object everywhere, and when people pass through the door and enter another space, people often need to close the door at any time, and particularly in public places such as schools, shopping malls and libraries, the door should be closed politely. However, many people often forget the habit, and the door is not closed after being opened, which brings inconvenience to people in the house, such as noise, cold and hot air, and the like.

In order to solve the problem, people can paste paper strips for closing the door conveniently, but inexperienced people are still in the door, and the effect is slight depending on the conscious observation of people. Various automatic door closers are available in the market, and people push the door to go past, and then automatically return the door under the action of the elastic force of a spring or the hydraulic pressure. The appearance of the product brings convenience to our life, but the single return effect is not good in intelligence, and if people stand at the doorway and the like, people need to push the door all the time to overcome the rebounding force of the people. To such a problem, some intelligent door closing devices have appeared, and the opening and closing of the door are intelligently controlled in a mode of installing a camera and connecting a network, but such devices have higher cost and larger limitation of the application range, and cannot be popularized and used in a large area.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an intelligence door closing device through the nimble opening and closing of control door of simple mechanical structure, when the people stands under the door, the door keeps the open mode, when people keep away from, and door self-closing has really realized the automatic control of door, stable performance, and is with low costs, and application scope is wide.

The purpose of the utility model is realized through the following technical scheme.

The utility model provides an intelligence door closing device, includes door, outer door frame and interior door frame, but door and interior door frame are connected through the elastic component between, self return, and the lateral surface of door aligns its characterized in that with outer door frame: the door comprises a clamping device and a switch system thereof, wherein the clamping device is positioned between a door and an inner door frame and is respectively connected with the door and the inner door frame through a supporting component; the switch system comprises a control unit, a trigger and an actuating mechanism, wherein the trigger is an object recognition sensor and is arranged on the surface or the periphery of a door and a door frame, and the actuating mechanism is arranged near a clamping device; the support component where the clamping device is located is provided with a return device, the return device is installed in front of or behind the clamping device, and acting force applied to the clamping device is opposite to that of the actuating mechanism.

According to the intelligent door closing device, the clamping device is a ratchet mechanism, the ratchet mechanism comprises a ratchet wheel and a pawl, and the ratchet wheel is located between the door and the inner door frame.

Furthermore, support assemblies are respectively arranged below a ratchet wheel and a pawl of the ratchet wheel mechanism, the ratchet wheel and the pawl are connected with the support assemblies below the ratchet wheel and the pawl through corresponding pin shafts, and a gasket is arranged between the ratchet wheel and the support assemblies.

Furthermore, the center of a pin shaft of the ratchet wheel connected with the support assembly of the ratchet wheel is aligned with the center of a pin shaft of the spring hinge.

Furthermore, a return device is arranged at the pawl and is a torsion spring capable of pulling the pawl away from the ratchet wheel.

Furthermore, the door and the inner door frame are respectively provided with a first avoidance hole and a second avoidance hole at the positions connected with the ratchet mechanism.

In the intelligent door closing device, the trigger of the switch system is an infrared sensor.

According to the intelligent door closing device, the actuating mechanism of the switch system is an electromagnet, and an electromagnetic switch is connected behind the actuating mechanism.

Furthermore, the magnetic force of the electromagnet is larger than the elastic force of the torsion spring.

According to the intelligent door closing device, the switch system is further provided with an alarm device, and the alarm device is a buzzer.

To sum up, the beneficial effects of the utility model are that:

1. the utility model discloses intelligence door closing device for on the door that can kick-back automatically, the ratchet that sets up between passing-through door and the interior door frame, the people need not to push away the door constantly and remove its bounce, laborsaving convenience when pushing away the door or waiting at the gate. Meanwhile, the infrared sensor and the controller are installed on the door frame or accessories of the door frame, when people keep away from the door, the pawl can be automatically lifted, the door returns, manual operation of people is not needed, and the situation that the door is forgotten to be closed can be effectively prevented. When the door is ready to close, a buzzer is also triggered, alerting a person who sees the door open at a distance ready to run through or carry an item ready to pass through the door to be careful. Moreover, even if the door is being closed, when people or animals walk to the door, the door can be immediately stopped, collision is avoided, and the safety factor is particularly high.

2. The utility model discloses intelligence door closing device adopts ratchet collocation infrared sensor to use, and simple structure is reliable, need not to send out miscellaneous camera and networking operation, and is with low costs, and application scope is wide.

Drawings

The aspects and advantages of the present application will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. In the drawings:

fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

FIG. 2 is a schematic structural view of the ratchet mechanism, wherein (a) is a front view and (b) is a top view;

FIG. 3 is a diagram of the ratchet mechanism action with the door open;

FIG. 4 is a control schematic diagram of the ratchet mechanism;

the components represented by the reference numerals in the figures are:

1. the door, 101, first dodge hole, 2, outer door frame, 3, interior door frame, 301, second dodge hole, 4, ratchet mechanism, 401, the ratchet, 402, the pawl, 5, a supporting bench, 501, lower link, 502, the top plate, 503, the side board, 504, the locating plate, 505, torsional spring bedplate, 6, the pivot seat, 601, outer pivot seat, 602, interior pivot seat, 7, the electro-magnet, 8, the torsional spring, 9, first round pin axle, 10, second round pin axle, 11, the spring hinge, 12, infrared sensor, 13, bee calling organ.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. It should be noted that these embodiments are provided so that this disclosure can be more completely understood and fully conveyed to those skilled in the art, and the present disclosure may be implemented in various forms without being limited to the embodiments set forth herein.

It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. Other terms used to describe the relationship between elements should be interpreted in a similar manner (e.g., "between," "adjacent," etc.). The directions mentioned in the present invention, such as "left and right", "up and down", are only used to express the relative position relationship, and are not restricted by any specific direction reference in practical application.

Example 1

Referring to fig. 1, fig. 1 is an intelligent door closing device according to this embodiment, which includes a door 1, an outer door frame 2 and an inner door frame 3, where the door 1 is connected to the inner door frame 3 through a spring hinge 11, an outer side surface of the door 1 is aligned with the outer door frame 2, and the door 1 is further provided with a locking device and an opening and closing system thereof, the locking device is located between the door 1 and the inner door frame 3, and is connected to the door 1 and the inner door frame 3 through a support assembly; the switch system comprises a control unit, a trigger and an actuating mechanism, wherein the trigger is an object recognition sensor and is arranged on the surface or the periphery of the door 1 and the door frame, and the actuating mechanism is arranged near the clamping device; the clamping device is also provided with a return device, and when the switching system cancels the action of the actuating mechanism, the return device can help the clamping device to return to the original position.

Referring to fig. 2, the locking device of this embodiment is a ratchet mechanism 4, which is installed between the door 1 and the inner frame 3 and located at the inner side of the door opening direction. The ratchet mechanism 4 comprises a ratchet wheel 401 and a pawl 402, wherein the ratchet wheel 401 is positioned between the door 1 and the inner door frame 3, the ratchet wheel 401 is horizontally placed, the central hole faces upwards, the pawl 402 is positioned behind the door 1, and the top end of the pawl is in contact with the outer end of the ratchet wheel 401.

Preferably, the ratchet wheel 401 is centered with respect to the center axis of the spring hinge 11 between the door 1 and the inner frame 3 to ensure that the pawl 402 on the door 1 rotates circumferentially about the ratchet wheel 401.

Because the ratchet wheel 401 and the pawl 402 are placed horizontally, the ratchet wheel 401 and the pawl 402 interfere with the door 1 and the inner door frame 3, and therefore the interference parts of the ratchet wheel 401 and the pawl 402 with the door 1 and the inner door frame 3 are respectively provided with the first avoidance hole 101 and the third avoidance hole 301, so that the rotation of the ratchet wheel 401 and the pawl 402 is not hindered.

In this embodiment, support assemblies are respectively disposed below the ratchet wheel 401 and the pawl 402 of the ratchet mechanism 4, the support assembly below the ratchet wheel 401 is a spindle seat 6, and the support assembly below the pawl 402 is a support table 5.

Further, the spindle base 6 includes an outer spindle base 601 and an inner spindle base 602, and the outer spindle base 601 and the inner spindle base 602 are similar to the conventional hinge structure, as shown in fig. 2, and only one of them is listed here for example. Wherein, the outer axle seat 601 is connected with the inner door frame 3, the inner axle seat 602 is connected with the door 1, and the centers of the central axle sleeves of the outer axle seat 601 and the inner axle seat 602 are aligned with the center of the ratchet 401. Preferably, the central bushings of the outer and

inner housings

601 and 602 protrude outward relative to the fixed plate thereof, so as to avoid interference of the spindle base 6 with the door 1 and the inner door frame 3 during installation.

Further, the ratchet 401 is connected to the lower outer shaft seat 601 and inner shaft seat 602 through the first pin 9, and preferably, a gasket is provided between the ratchet 401 and the outer shaft seat 601 and the inner shaft seat 602, so as to prevent the ratchet 401 from directly contacting the outer shaft seat 601 and the inner shaft seat 602.

In this embodiment, a support table 5 is disposed below the pawl 402, the support table 5 includes a lower link plate 501, an upper flat plate 502, a side standing plate 503, a positioning plate 504 and a torsion spring support plate 505, the lower link plate 501 is connected to the door 1, the upper flat plate 502 is disposed on the lower link plate 501 for supporting the pawl 402, a side standing plate 503 is connected to the side surfaces of the lower link plate 501 and the upper flat plate 502, the side standing plate 503 is higher than the upper flat plate 502 and is higher than the width of the pawl 402, a horizontal positioning plate 504 is disposed at the top end of the side standing plate 503, the positioning plate 504 is used for mounting the pawl 402, a pin hole is formed in the center of the outer end of the positioning plate 504, and the distance from the positioning plate 504 to the upper.

Further, the pawl 402 is mounted on the supporting platform 5 through a second pin 9, and the second pin 9 penetrates through the positioning plate 504 and penetrates out from the lower side of the upper plate 502.

In this embodiment, when the door is returned, the pawl 402 is disengaged from the ratchet 401, otherwise the door cannot be closed, and therefore, the pawl 402 needs to be engaged with or disengaged from the ratchet 401 as required. In this embodiment, the torsion spring 8 and the electromagnet 7 are provided on the upper plate 502 of the support table 5, respectively, to act on the pawl 402 to engage with or disengage from the ratchet 401.

Further, the torsion spring 8 is located behind the pawl 402, and correspondingly, a torsion spring support plate 505 is disposed at an inner side end of the positioning plate 504 for mounting the torsion spring 8, and the torsion spring 8 continuously applies a pulling force to the pawl 402 to separate the pawl from the ratchet 401.

Further, the electromagnet 7 is located in front of the pawl 402, an electromagnetic switch is connected to the rear of the electromagnet 7, when the switch is turned on, magnetism is generated in the electromagnet 7, and the pawl 402 is close to the electromagnet 7 under the action of magnetic force and is in contact with the ratchet 401.

Further, the magnetic force generated by the electromagnet 7 is greater than the pulling force generated by the torsion spring 8.

In this embodiment, the pawl 402 is controlled to contact or disengage the ratchet 401 by a dedicated switching system. The switch system comprises a control unit, a trigger and an actuating mechanism, wherein the control unit can be a common time schedule controller or a PLC control unit, and the PLC control unit is adopted in the embodiment. The trigger is an infrared sensor 12, which is arranged in the door frame or above the door 1, and detects whether a person or animal stays near the door 1 by thermal detection, although a distance sensor or other detection type sensors can be used here. The actuating mechanism is an electromagnet 7 and an electromagnetic switch, and can be turned on or turned off under the action of the PLC control unit. The infrared sensor 12 and the electromagnetic switch are respectively connected with a PLC control unit.

Further, the door 1 of the present embodiment is automatically closed when it is detected that no person or animal stays near the door 1, but if a person sees that the door is open and wants to run through quickly, when there is a possibility of approaching, the door 1 starts to be automatically closed, and in order to prevent the passerby from being scared by the door 1 being automatically closed, the above opening and closing system is further provided with an alarm device for warning the person who is about to pass through the door 1, the alarm device being a buzzer 13 installed above the door 1. Preferably, the buzzer 13 is a timing buzzer.

The working principle of the switching system is described below with reference to fig. 4. When the door 1 is in a closed state, the electromagnet 7 is nonmagnetic, the pawl 402 is separated from the ratchet wheel 401 under the action of the torsion spring 8, when the infrared sensor 12 detects that a person approaches the door 1 within a certain range, a signal of the person is transmitted to the PLC control unit, the PLC control unit controls the electromagnetic switch to be turned on, after the electromagnetic switch is turned on, magnetic force is generated in the electromagnet 7, and the pawl 402 approaches the electromagnet 7 under the action of the magnetic force and finally contacts with the ratchet wheel 401. At the moment, a person pushes the door 1, the pawl 402 on the door 1 rotates along the ratchet wheel 401, when the door 1 is pushed to a proper position, the person does not push the door 1 any more, the pawl 402 is clamped on the ratchet wheel 401, the door 1 cannot return backwards, and a single person or a plurality of persons can pass through the door 1 in sequence without pushing the door by hands all the time. After the crowd completely passes through the door 1, when the infrared sensor 12 detects that no person exists in the current range, the signal of no person is transmitted to the PLC control unit, the PLC control unit firstly controls the switch of the buzzer 13 to be opened, the buzzer 13 gives an alarm for 1-5 seconds, the door 1 around is reminded to start to be closed, then the PLC control unit controls the electromagnetic switch to be closed, after the electromagnetic switch is closed, the magnetic force in the electromagnet 7 disappears, the pawl 402 is separated from the ratchet wheel 401 under the action of the torsion spring 8, after the limiting action of the pawl 402 is lost, the door 1 automatically returns under the action of the spring hinge 11 between the door 1 and the inner door frame 3.

Further, when the door 1 is automatically returned, people or animals suddenly run out, the infrared sensor 12 transmits a heat signal to the PLC control unit after detecting the heat signal, the PLC control unit controls the electromagnetic switch again to realize the contact between the pawl 402 and the ratchet 401, the door 1 can be immediately stopped at the original position and is not closed any more, and the design can effectively guarantee the safety of the people or animals passing through the door 1.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides an intelligence door closing device, includes door (1), outer door frame (2) and interior door frame (3), but be connected through the elastic component between door (1) and interior door frame (3), self return, the lateral surface and the outer door frame (2) of door (1) align its characterized in that: the door locking device comprises a clamping device and a switching system thereof, wherein the clamping device is positioned between a door (1) and an inner door frame (3) and is respectively connected with the door (1) and the inner door frame (3) through a supporting component; the switch system comprises a control unit, a trigger and an actuating mechanism, wherein the trigger is an object recognition sensor and is arranged on the surface or the periphery of the door (1) and the door frame, and the actuating mechanism is arranged near the clamping device; the support component where the clamping device is located is provided with a return device, the return device is installed in front of or behind the clamping device, and acting force applied to the clamping device is opposite to that of the actuating mechanism.

2. The intelligent door-closing device according to claim 1, wherein: the clamping device is a ratchet mechanism (4), the ratchet mechanism (4) comprises a ratchet wheel (401) and a pawl (402), and the ratchet wheel (401) is located between the door (1) and the inner door frame (3).

3. The intelligent door-closing device according to claim 2, wherein: support assemblies are respectively arranged below a ratchet wheel (401) and a pawl (402) of the ratchet wheel mechanism (4), the ratchet wheel (401) and the pawl (402) are connected with the support assemblies below the ratchet wheel (401) and the pawl (402) through corresponding pin shafts, and a gasket is arranged between the ratchet wheel (401) and the support assemblies.

4. The intelligent door-closing device according to claim 3, wherein: the center of a pin shaft of the ratchet wheel (401) connected with the support component is aligned with the center of a pin shaft of the spring hinge (11).

5. The intelligent door-closing device according to claim 2, wherein: pawl (402) department is equipped with return means, return means is torsional spring (8), and torsional spring (8) can pull pawl (402) away from ratchet (401).

6. The intelligent door-closing device according to claim 2, wherein: door (1) and interior door frame (3) are equipped with first hole (101) and the second hole (301) of dodging respectively in the position that meets with ratchet (4).

7. The intelligent door-closing device according to claim 1, wherein: the trigger of the switch system is an infrared sensor.

8. The intelligent door-closing device according to claim 1, wherein: the actuating mechanism of the switching system is an electromagnet (7), and an electromagnetic switch is connected behind the actuating mechanism.

9. The intelligent door-closing device according to claim 8, wherein: the magnetic force of the electromagnet (7) is larger than the elastic force of the torsion spring (8).

10. The intelligent door-closing device according to claim 1, wherein: the switch system is also provided with an alarm device which is a buzzer (13).