CN109944521B - Intelligent door closing device - Google Patents
Intelligent door closing device Download PDFInfo
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- CN109944521B CN109944521B CN201910300707.7A CN201910300707A CN109944521B CN 109944521 B CN109944521 B CN 109944521B CN 201910300707 A CN201910300707 A CN 201910300707A CN 109944521 B CN109944521 B CN 109944521B
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- door
- pawl
- door frame
- clamping device
- ratchet
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- 238000013459 approach Methods 0.000 claims description 4
- 230000005389 magnetism Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
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- 238000000429 assembly Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
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Abstract
An intelligent door closing device is characterized in that a clamping device and a switch system thereof are arranged at the rear of 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 identification sensor and is arranged on the surfaces or the periphery of the door (1) and the door frame, and the actuating mechanism is arranged near the clamping device; the support assembly where the clamping device is located is provided with a return device, the return device is arranged in front of or behind the clamping device, and acting force applied to the clamping device is opposite to the actuating mechanism. The intelligent door closing device flexibly controls the opening and closing of the door through a simple mechanical structure, when a person stands under the door, the door keeps an open state, and when the person is far away, the door is automatically closed, so that the intelligent door closing device has stable performance, low cost and wide application range.
Description
Technical Field
The invention relates to the technical field of automatic control, in particular to an intelligent door closing device.
Background
The door is a kind of entity dividing a limited space, and its function is to connect and close the entrance of two or more spaces. In our life, the door is a everywhere visible object, and when we pass through the door to enter another space, the door needs to be closed conveniently, especially in public places such as schools, markets, libraries and the like, and the door should be closed politely. However, many people often forget the habit and do not close the door after opening the door, so that a lot of inconveniences are brought to people in the house, such as noise, cold and hot air and the like, which enter the house.
Aiming at the problem, people can attach paper strips for 'closing the door by hand' on the door, but people who do not execute the paper strips are still in existence, and the effect is very poor by the subjective adherence of people. Various automatic door closers are available in the market, and when people push the door, the door is automatically returned under the action of spring force or hydraulic force. The appearance of the product brings convenience to our life, but the single return effect is poor in intelligence, and if we stand at a doorway or the like, we need to push the door all the time to overcome the resilience force of the door. Aiming at the problems, intelligent door closing devices are also arranged, the opening and closing of the door are intelligently controlled by installing a camera and connecting a network, but the device has higher cost and larger application range, and cannot be popularized and used in a large area.
Disclosure of Invention
In order to solve the problems, the invention provides the intelligent door closing device which can flexibly control the opening and closing of the door through a simple mechanical structure, when a person stands under the door, the door is kept in an open state, and when the person is far away, the door is automatically closed, so that the automatic control of the door is truly realized, the performance is stable, the cost is low, and the application range is wide.
The aim of the invention is achieved by the following technical scheme.
The utility model provides an intelligence door closing device, includes door, outer door frame and interior door frame, but connect through the elastic component between door and the interior door frame, but self return, 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 identification sensor and is arranged on the surfaces or the periphery of the door and the door frame, and the actuating mechanism is arranged near the clamping device; the support assembly where the clamping device is located is provided with a return device, the return device is arranged in front of or behind the clamping device, and acting force applied to the clamping device is opposite to the actuating mechanism.
The intelligent door closing device is characterized in that the clamping device is a ratchet mechanism, and the ratchet mechanism comprises a ratchet and a pawl, wherein the ratchet is positioned between the door and the inner door frame.
Further, supporting components are respectively arranged below the ratchet wheel and the pawl of the ratchet wheel mechanism, and the ratchet wheel and the pawl are connected with the supporting components below the ratchet wheel and the pawl through corresponding pin shafts.
Further, the center of the pin shaft of the ratchet wheel connected with the supporting component is aligned with the center of the pin shaft of the spring hinge.
Further, a return device is arranged at the pawl, the return device is a torsion spring, and the torsion spring can pull the pawl away from the ratchet wheel.
Further, the door and the inner door frame are respectively provided with a first avoiding hole and a second avoiding hole at the positions connected with the ratchet mechanism.
The intelligent door closing device is characterized in that the trigger of the switch system is an infrared sensor.
The intelligent door closing device is characterized in that an actuating mechanism of the switch system is an electromagnet, and an electromagnetic switch is connected behind the actuating mechanism.
Further, the magnetic force of the electromagnet is larger than the elastic force of the torsion spring.
The intelligent door closing device is characterized in that the switch system is further provided with an alarm device, and the alarm device is a buzzer.
In summary, the beneficial effects of the invention are as follows:
1. The intelligent door closing device is used for the door capable of automatically rebounding, and by the ratchet mechanism arranged between the door and the inner door frame, people do not need to push the door to overcome the rebounding force at any time when pushing the door or waiting at a door opening. Simultaneously, infrared sensor and controller are installed on the door frame or its annex, and after people kept away from the door, the pawl can be lifted automatically, lets the door return, need not people manual operation, can effectively prevent forgetting the emergence of the condition of closing the door. When the door is ready to close, a buzzer is also triggered to alert a person at a distance to see the door open ready to run through or carrying an item ready to pass through the door. Moreover, even if the door is being closed, when a person or animal walks to the door, the door is immediately stopped, collision is avoided, and the safety factor is particularly high.
2. The intelligent door closing device provided by the invention is used by matching the ratchet mechanism with the infrared sensor, has a simple and reliable structure, does not need a camera for generating impurities and networking operation, and has the advantages of low cost and wide application range.
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 application. In the drawings:
FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of a ratchet mechanism, wherein (a) is a front view and (b) is a top view;
FIG. 3 is a diagram illustrating the operation of the ratchet mechanism with the door open;
FIG. 4 is a schematic diagram of a ratchet mechanism control;
the components represented by the reference numerals in the figures are:
1. Door, 101, first hole of dodging, 2, outer door frame, 3, inner door frame, 301, second hole of dodging, 4, ratchet, 401, ratchet, 402, pawl, 5, brace table, 501, lower yoke plate, 502, upper plate, 503, side vertical plate, 504, locating plate, 505, torsion spring seat, 6, swivel seat, 601, outer axle seat, 602, inner axle seat, 7, electromagnet, 8, torsion spring, 9, first pin, 10, second pin, 11, spring hinge, 12, infrared sensor, 13, buzzer.
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 will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art, and the disclosure may be embodied in various forms and should not be limited by 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 the same manner (e.g., "between," "adjacent," etc.). The directions "left and right", "up and down", and the like mentioned in the present invention are only used to express relative positional relationships, and are not restricted by any specific directional references in practical applications.
Example 1
Referring to fig. 1, fig. 1 is an intelligent door closing device according to the present embodiment, including a door 1, an outer door frame 2 and an inner door frame 3, where the door 1 is connected with the inner door frame 3 through a spring hinge 11, the outer side surface of the door 1 is aligned with the outer door frame 2, and in addition, a clamping device and a switch system thereof are further disposed on the door 1, and the clamping device is located between the door 1 and the inner door frame 3 and is respectively connected with the door 1 and the inner door frame 3 through a support component; the switch system comprises a control unit, a trigger and an actuating mechanism, wherein the trigger is an object identification sensor and is arranged on the surfaces 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 switch system cancels the action of the executing mechanism, the return device can help the clamping device to return to the original position.
Next, referring to fig. 2, the detent mechanism used in this embodiment is a ratchet mechanism 4, which is installed between the door 1 and the inner door frame 3, and is located at the inner side in the door opening direction. The ratchet mechanism 4 comprises a ratchet 401 and a pawl 402, wherein the ratchet 401 is positioned between the door 1 and the inner door frame 3, horizontally arranged, the central hole is upward, the pawl 402 is positioned at the rear of the door 1, and the top end is contacted with the outer end of the ratchet 401.
Preferably, the center of the ratchet 401 is aligned with the center of the central shaft of the spring hinge 11 between the door 1 and the inner door frame 3, so that the pawl 402 on the door 1 rotates circumferentially around the ratchet 401.
Because the ratchet 401 and the pawl 402 are horizontally arranged, the ratchet 401 and the pawl 402 can interfere with the door 1 and the inner door frame 3, and therefore, the first avoiding hole 101 and the third avoiding hole 301 are respectively arranged at the interference parts of the ratchet 401 and the pawl 402 with the door 1 and the inner door frame 3, so that the rotation of the ratchet 401 and the pawl 402 is not blocked.
In this embodiment, support assemblies are respectively disposed under the ratchet 401 and the pawl 402 of the ratchet mechanism 4, the support assemblies under the ratchet 401 are the spindle seats 6, and the support assemblies under the pawl 402 are the support tables 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 configured as shown in fig. 2, which is similar to a common hinge structure, and only one of them is listed here for example. Wherein the outer shaft seat 601 is connected with the inner door frame 3, the inner shaft seat 602 is connected with the door 1, and the center shaft sleeve centers of the outer shaft seat 601 and the inner shaft seat 602 are aligned with the center of the ratchet 401. Preferably, the central shaft sleeves of the outer shaft seat 601 and the inner shaft seat 602 are protruded outwards by a part relative to the fixing plate, so that the interference of the rotating shaft seat 6 with the door 1 and the inner door frame 3 during installation is avoided.
Further, the ratchet 401 is connected with the lower outer shaft seat 601 and the lower inner shaft seat 602 through the first pin shaft 9, preferably, a gasket is arranged between the ratchet 401 and the outer shaft seat 601 and between the ratchet 401 and the inner shaft seat 602, so that the ratchet 401 is prevented from being in direct contact with the outer shaft seat 601 and the inner shaft seat 602.
In this embodiment, a supporting table 5 is disposed below the pawl 402, the supporting table 5 includes a lower yoke plate 501, an upper plate 502, a side stand 503, a positioning plate 504 and a torsion spring support plate 505, the lower yoke plate 501 is connected with the door 1, the upper plate 502 is disposed above the lower yoke plate 501 and is used for supporting the pawl 402, the side surfaces of the lower yoke plate 501 and the upper plate 502 are connected with a side stand 503, the height of the side stand 503 is higher than that of the upper plate 502 and is higher than that of the pawl 402, a horizontal positioning plate 504 is disposed at the top end of the side stand 503, the positioning plate 504 is used for installing 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 plate 502 is slightly larger than that of the pawl 402.
Further, the pawl 402 is mounted on the supporting table 5 through a second pin 9, and the second pin 9 penetrates from above the positioning plate 504 and penetrates from below the upper plate 502.
In this embodiment, the pawl 402 is separate from the ratchet 401 when the door is returned, otherwise the door cannot be closed, and thus the pawl 402 is required to be engaged with or disengaged from the ratchet 401 as needed. In this embodiment, the torsion spring 8 and the electromagnet 7 are respectively disposed on the upper plate 502 of the supporting table 5 to act on the pawl 402, so as to combine or separate the pawl with the ratchet 401.
Further, the torsion spring 8 is located at the rear of the pawl 402, and correspondingly, a torsion spring support plate 505 is disposed at the inner end of the positioning plate 504, and is used for mounting the torsion spring 8, and the torsion spring 8 continuously applies a pulling force to the pawl 402 to separate the pawl 402 from the ratchet 401.
Further, the electromagnet 7 is located in front of the pawl 402, and an electromagnetic switch is connected to the rear of the pawl, when the switch is turned on, magnetism is generated in the electromagnet 7, and the pawl 402 approaches the electromagnet 7 under the action of the magnetic force and contacts with the ratchet 401.
Further, the magnetic force generated by the electromagnet 7 is larger than the tensile force generated by the torsion spring 8.
In this embodiment, the contact or separation of the pawl 402 from the ratchet 401 is controlled by a dedicated switching system. The switch system comprises a control unit, a trigger and an executing mechanism, wherein the control unit can be a common time sequence 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 sensor may be used herein. The actuating mechanism is an electromagnet 7 and an electromagnetic switch, and can be opened or closed under the action of the PLC control unit. The above-mentioned infrared sensor 12 and electromagnetic switch are connected to the PLC control unit, respectively.
Further, the door 1 of the present embodiment is automatically closed when no person or animal is detected to stay near the door 1, but if a person sees the door open, and if a fast running through is desired, and a approaching is possible, the door 1 starts to be automatically closed, and in order to prevent the passerby from being frightened by when the door 1 is automatically closed, the above-mentioned switch system is further provided with an alarm device, which is a buzzer 13, installed above the door 1, to warn the person who is ready to pass through the door 1. Preferably, the buzzer 13 is a timing buzzer.
The working principle of the switching system is described below in connection with fig. 4. When the door 1 is in a closed state, the electromagnet 7 is nonmagnetic, the pawl 402 is separated from the ratchet 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 opened, after the electromagnetic switch is switched 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 401. At this time, the person pushes the door 1, the pawl 402 on the door 1 rotates along the ratchet 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 401, so that the door 1 cannot return backwards, and a single person or a plurality of persons can pass through the door 1 in sequence, and the person does not need to push the door all the time. When people all pass through the door 1, the infrared sensor 12 detects that no person exists in the current range, an unmanned signal is transmitted to the PLC control unit, the PLC control unit firstly controls the buzzer 13 to be opened and closed, the buzzer 13 gives an alarm for 1-5 seconds, the surrounding people door 1 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 401 under the action of the torsion spring 8, and after the limit action of the pawl 402 is lost by the door 1, the door returns automatically 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, a person or an animal suddenly runs out, the infrared sensor 12 detects a heat signal and then transmits the heat signal to the PLC control unit, the PLC control unit controls the electromagnetic switch again to achieve contact between the pawl 402 and the ratchet 401, the door 1 can immediately stop at the original position and is not closed any more, and the safety of the person or the animal passing through the door 1 can be effectively guaranteed through the design.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
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 spring hinge (11) between door (1) and interior door frame (3), but self return, the lateral surface of door (1) aligns its characterized in that with outer door frame (2): the door lock comprises a clamping device and a switch 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 clamping device is a ratchet mechanism (4), the ratchet mechanism (4) comprises a ratchet wheel (401) and a pawl (402), the ratchet wheel (401) is positioned between the door (1) and the inner door frame (3), and the pawl (402) is positioned at the back of the door (1);
The ratchet wheel (401) and the pawl (402) of the ratchet wheel mechanism (4) are respectively provided with a supporting component below the ratchet wheel (401) and the pawl (402), the ratchet wheel (401) and the supporting component below the pawl are connected together through corresponding pin shafts, the pin shaft center of the ratchet wheel (401) connected with the supporting component is aligned with the pin shaft center of the spring hinge (11), and the pawl (402) on the door (1) is guaranteed to rotate circumferentially around the ratchet wheel (401);
The switch system comprises a control unit, a trigger and an actuating mechanism, wherein the trigger is an object identification sensor and is arranged on the surfaces or the periphery of a door (1) and a door frame, the actuating mechanism is installed near a clamping device, the actuating mechanism is an electromagnet (7), the electromagnet (7) is positioned in front of a pawl (402), an electromagnetic switch is connected to the rear of the electromagnet, when the switch is turned on, magnetism is generated in the electromagnet (7), and the pawl (402) approaches the electromagnet (7) under the action of magnetic force and contacts with a ratchet wheel (401);
The supporting component where the clamping device is located is provided with a return device, the return device is a torsion spring (8), the torsion spring (8) is positioned at the rear of the pawl (402), the acting force applied to the clamping device is opposite to the actuating mechanism, and the torsion spring (8) can pull the pawl (402) away from the ratchet wheel (401);
the magnetic force of the electromagnet (7) is larger than the elastic force of the torsion spring (8).
2. An intelligent door closer according to claim 1, wherein: the door (1) and the inner door frame (3) are respectively provided with a first avoidance hole (101) and a second avoidance hole (301) at the positions connected with the ratchet mechanism (4).
3. An intelligent door closer according to claim 1, wherein: the trigger of the switch system is an infrared sensor.
4. An intelligent door closer according to claim 1, wherein: the switch system is also provided with an alarm device which is a buzzer (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910300707.7A CN109944521B (en) | 2019-04-15 | 2019-04-15 | Intelligent door closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910300707.7A CN109944521B (en) | 2019-04-15 | 2019-04-15 | Intelligent door closing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109944521A CN109944521A (en) | 2019-06-28 |
| CN109944521B true CN109944521B (en) | 2024-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910300707.7A Active CN109944521B (en) | 2019-04-15 | 2019-04-15 | Intelligent door closing device |
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| Country | Link |
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| CN (1) | CN109944521B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031585A (en) * | 2020-08-31 | 2020-12-04 | 广州万富电子商务有限公司 | Express delivery cabinet door switch device based on light sense control principle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2619004Y (en) * | 2003-05-23 | 2004-06-02 | 曹孟良 | Automatic inductive door |
| CN108952430A (en) * | 2018-07-31 | 2018-12-07 | 竺裕东 | A kind of door leaf sash facilitation automatic wind-proof locator |
| CN109025497A (en) * | 2018-09-26 | 2018-12-18 | 朱林祥 | A kind of hinge used |
| CN210564020U (en) * | 2019-04-15 | 2020-05-19 | 常家珩 | Intelligent door closing device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080048598A (en) * | 2006-11-29 | 2008-06-03 | 김두환 | Safety door |
| CN204343925U (en) * | 2014-12-22 | 2015-05-20 | 江西远大保险设备实业集团有限公司 | The anti-follow door in a kind of bank business hall |
| CN108331479B (en) * | 2017-01-19 | 2019-09-10 | 长春阔尔科技股份有限公司 | A kind of sliding window emergency opening system |
| CN108952429A (en) * | 2018-07-31 | 2018-12-07 | 竺裕东 | A kind of intelligent automatic wind-proof positioner of door leaf sash |
-
2019
- 2019-04-15 CN CN201910300707.7A patent/CN109944521B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2619004Y (en) * | 2003-05-23 | 2004-06-02 | 曹孟良 | Automatic inductive door |
| CN108952430A (en) * | 2018-07-31 | 2018-12-07 | 竺裕东 | A kind of door leaf sash facilitation automatic wind-proof locator |
| CN109025497A (en) * | 2018-09-26 | 2018-12-18 | 朱林祥 | A kind of hinge used |
| CN210564020U (en) * | 2019-04-15 | 2020-05-19 | 常家珩 | Intelligent door closing device |
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| CN109944521A (en) | 2019-06-28 |
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