CN109236089B - Automatic door closing device - Google Patents

Automatic door closing device Download PDF

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Publication number
CN109236089B
CN109236089B CN201811094607.5A CN201811094607A CN109236089B CN 109236089 B CN109236089 B CN 109236089B CN 201811094607 A CN201811094607 A CN 201811094607A CN 109236089 B CN109236089 B CN 109236089B
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China
Prior art keywords
door
spring
permanent magnet
magnetic field
passerby
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CN201811094607.5A
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Chinese (zh)
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CN109236089A (en
Inventor
虞仙
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Zhaoqing Gaoyao Jinhuida Hardware Products Co ltd
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Individual
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
    • E05F5/08—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops with springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors

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  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

The invention belongs to the field of building doors and windows, and particularly relates to an automatic door closing system which comprises a damping part, a grating sensor and a control part, wherein when the grating sensor judges whether a person carries personal articles or not by measuring the cross section area of the person when the grating sensor passes through a door frame, the control part controls the compression amount of a spring of the damping part through the size of the cross section area, so that the size of damping is controlled. According to the invention, the damping of the door closer is automatically adjusted according to the door passing speed of the door passing person, so that the opening/closing action is more convenient for a user, and the user experience is optimized.

Description

Automatic door closing device
Technical Field
The invention belongs to the field of building doors and windows, and particularly relates to an automatic door closing device.
Background
The door closer is mainly used for providing a damping effect for the door plate so as to have a buffering effect when the door plate is closed. For example, a hydraulic damping door closer is a patent product of yunnan kinson technologies ltd (refer to patent document CN 203640468U).
Disclosure of Invention
The invention provides an automatic door closing device which can automatically adjust the damping of the automatic door closing device according to the specific situation of a person opening/closing the door, so that the opening/closing action is more convenient for a user, and the user experience is optimized.
An automatic door closing device comprises a grating sensor and a door closer, wherein the grating sensor is arranged in front of a door and is used for detecting whether a person passes through the door or not and measuring the cross-sectional area of the person when the person passes through the grating; the door closer comprises a main rod, a rocker and a door closer main body, wherein one end of the main rod is fixed above the door frame, the other end of the main rod is rotatably connected with one end of the rocker, and the other end of the rocker is connected with the door closer main body positioned on the door body;
the door closer main body includes a damping part and a control part, wherein,
the damping portion includes:
the spring is arranged in the inner cavity of the damping part, one end of the spring is connected with the rack, and the other end of the spring is connected with the permanent magnet;
the rack is meshed with the gear;
the gear is connected with one end of the rocker, and when the door body is pushed away or closed, the gear is driven to rotate to drive the rack to translate so as to compress or stretch the spring;
the permanent magnet is arranged on the right side of the spring and is fixedly connected with the spring;
the coil is arranged on the right side of the permanent magnet and is used for generating a magnetic field interacting with the permanent magnet after being electrified;
an adjustable power supply for powering the coil;
the control portion is in signal connection with the grating sensor and the adjustable power supply, and is configured to:
(1) calculating the volume of the passerby according to the section area of the passerby measured by the grating sensor;
(2) when the volume of the passerby is not zero and is smaller than a set first standard value, the control part judges that the passerby is a child, and therefore the adjustable power supply is controlled to output a first current value to the coil, a first magnetic field and the permanent magnet are generated to attract each other, the right end of the spring moves along the direction in which the spring is compressed, the actual compression amount of the spring is reduced, namely the resistance generated by the compression spring in the door pushing process is reduced, and the door is easy to push open;
after the door is pushed open, the adjustable power supply is continuously controlled to output a first current value to the coil in the process of releasing the elastic potential energy of the spring, so that a first magnetic field is generated to attract the permanent magnet, the right end of the spring moves along the reverse direction of the reset of the spring, the reset time of the spring is prolonged, and the door passing time with the length of a first time period is provided for children;
(3) when the volume of the passerby is larger than a set second standard value, the control part judges that the passerby is inconvenient to push the door because the passerby possibly carries more articles, therefore, the adjustable power supply is controlled to output a second current value to the coil, a second magnetic field is generated to attract the permanent magnet, the right end of the spring moves along the direction in which the spring is compressed, the actual compression amount of the spring is reduced, and the resistance generated by the compression spring in the door pushing process is also reduced;
after the door is pushed open, the adjustable power supply is continuously controlled to output a second current value to the coil in the process of releasing the elastic potential energy of the spring, so that a second magnetic field is generated to attract the permanent magnet, the spring resetting time is prolonged, and the door passing time with the length of a second time period is provided for a door passing person;
the first current value is smaller than the second current value, the magnetic field intensity of the first magnetic field is smaller than that of the second magnetic field, and the first time period is smaller than the second time period.
The invention has the beneficial effects that: according to the invention, the damping of the door closer is automatically adjusted according to the door passing speed of the door passing person, so that the opening/closing action is more convenient for a user, and the user experience is optimized.
Drawings
Figure 1 shows a schematic view of a damping portion;
fig. 2 shows a functional block diagram of an automatic door closing device;
Detailed Description
The structure of the present system and the functions performed are described in detail below with reference to the accompanying drawings.
An automatic door closing device comprises a grating sensor 1 arranged in front of a door and a door closer, wherein the grating sensor 1 is used for detecting whether a person passes through the door or not and measuring the cross-sectional area when the person passes through a grating; the door closer comprises a main rod, a rocker and a door closer main body, wherein one end of the main rod is fixed above the door frame, the other end of the main rod is rotatably connected with one end of the rocker, and the other end of the rocker is connected with the door closer main body positioned on the door body;
the door closer main body includes a damping part 2 and a control part 3, wherein,
the damper portion 2 includes:
a spring 21 disposed in the inner cavity of the damping part 2, one end of which is connected to the rack 23 and the other end of which is connected to the permanent magnet 24;
the rack 23 is meshed with the gear 22;
the gear 22 is connected with one end of the rocker, and when the door body is pushed away or closed, the gear 22 is driven to rotate, and the rack 23 is driven to translate so as to compress or stretch the spring 21;
a permanent magnet 24 disposed on the right side of the spring 21 and fixedly connected to the spring 21;
a coil 25 disposed on the right side of the permanent magnet 24 for generating a magnetic field interacting with the permanent magnet 24 after being energized;
an adjustable power supply 26 for powering the coil 25;
the control part 3 is in signal connection with the grating sensor 1 and the adjustable power supply 26, and is configured to:
(1) calculating the volume of the passerby according to the section area of the passerby measured by the grating sensor 1;
(2) when the volume of the passerby is not zero and is smaller than the set first standard value, the control part 3 judges that the passerby is a child, and therefore, the adjustable power supply 26 is controlled to output a first current value to the coil 25, so that a first magnetic field and the permanent magnet 24 are generated to attract each other, the right end of the spring 21 moves along the direction in which the spring is compressed, the actual compression amount of the spring 21 is reduced, namely the resistance generated by the compression spring in the door pushing process is reduced, and the door is easy to push open;
after the door is pushed open, in the process of releasing the elastic potential energy of the spring 21, continuously controlling the adjustable power supply 26 to output a first current value to the coil 25, thereby generating a first magnetic field to attract the permanent magnet 24 mutually, enabling the right end of the spring to move along the reverse direction of the spring reset, prolonging the spring reset time, and providing the door passing time with the length of a first time period for children;
(3) when the volume of the passerby is larger than the set second standard value, the control part 3 judges that the passerby is inconvenient to push the door because the passerby can carry more articles, therefore, the adjustable power supply 26 is controlled to output a second current value to the coil 25, so that a second magnetic field is generated to attract the permanent magnet 24, the right end of the spring moves along the direction in which the spring is compressed, the actual compression amount of the spring is reduced, namely the resistance generated by the compression spring in the door pushing process is reduced;
after the door is pushed open, in the process of releasing the elastic potential energy of the spring, the adjustable power supply 26 is continuously controlled to output a second current value to the coil 25, so that a second magnetic field is generated to attract the permanent magnet 24, the reset time of the spring 21 is prolonged, and the door passing time with the second time period is provided for a person passing through the door.
It will be appreciated by persons skilled in the art that numerous variations and/or modifications may be made to the invention as shown in the specific embodiments without departing from the spirit or scope of the invention as broadly described. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. Likewise, the invention encompasses any combination of features, in particular of features in the patent claims, even if this feature or this combination of features is not explicitly specified in the patent claims or in the individual embodiments herein.

Claims (1)

1. An automatic door closing device comprises a grating sensor and a door closer, wherein the grating sensor is arranged in front of a door and is used for detecting whether a person passes through the door or not and measuring the cross-sectional area of the person when the person passes through the grating; the door closer comprises a main rod, a rocker and a door closer main body, wherein one end of the main rod is fixed above the door frame, the other end of the main rod is rotatably connected with one end of the rocker, and the other end of the rocker is connected with the door closer main body positioned on the door body;
it is characterized in that the preparation method is characterized in that,
the door closer main body includes a damping part and a control part, wherein,
the damping portion includes:
the spring is arranged in the inner cavity of the damping part, one end of the spring is connected with the rack, and the other end of the spring is connected with the permanent magnet;
the rack is meshed with the gear;
the gear is connected with one end of the rocker, and when the door body is pushed away or closed, the gear is driven to rotate to drive the rack to translate so as to compress or stretch the spring;
the permanent magnet is arranged on the right side of the spring and is fixedly connected with the spring;
the coil is arranged on the right side of the permanent magnet and is used for generating a magnetic field interacting with the permanent magnet after being electrified;
an adjustable power supply for powering the coil;
the control portion is in signal connection with the grating sensor and the adjustable power supply, and is configured to:
(1) calculating the volume of the passerby according to the section area of the passerby measured by the grating sensor;
(2) when the volume of the passerby is not zero and is smaller than a set first standard value, the control part judges that the passerby is a child, and therefore the adjustable power supply is controlled to output a first current value to the coil, a first magnetic field and the permanent magnet are generated to attract each other, the right end of the spring moves along the direction in which the spring is compressed, the actual compression amount of the spring is reduced, namely the resistance generated by the compression spring in the door pushing process is reduced, and the door is easy to push open;
after the door is pushed open, the adjustable power supply is continuously controlled to output a first current value to the coil in the process of releasing the elastic potential energy of the spring, so that a first magnetic field is generated to attract the permanent magnet, the right end of the spring moves along the reverse direction of the reset of the spring, the reset time of the spring is prolonged, and the door passing time with the length of a first time period is provided for children;
(3) when the volume of the passerby is larger than a set second standard value, the control part judges that the passerby is inconvenient to push the door because the passerby possibly carries more articles, therefore, the adjustable power supply is controlled to output a second current value to the coil, a second magnetic field is generated to attract the permanent magnet, the right end of the spring moves along the direction in which the spring is compressed, the actual compression amount of the spring is reduced, and the resistance generated by the compression spring in the door pushing process is also reduced;
after the door is pushed open, the adjustable power supply is continuously controlled to output a second current value to the coil in the process of releasing the elastic potential energy of the spring, so that a second magnetic field is generated to attract the permanent magnet, the spring resetting time is prolonged, and the door passing time with the length of a second time period is provided for a door passing person;
the first current value is smaller than the second current value, the magnetic field intensity of the first magnetic field is smaller than that of the second magnetic field, and the first time period is smaller than the second time period.
CN201811094607.5A 2018-09-19 2018-09-19 Automatic door closing device Active CN109236089B (en)

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Application Number Priority Date Filing Date Title
CN201811094607.5A CN109236089B (en) 2018-09-19 2018-09-19 Automatic door closing device

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Application Number Priority Date Filing Date Title
CN201811094607.5A CN109236089B (en) 2018-09-19 2018-09-19 Automatic door closing device

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CN109236089A CN109236089A (en) 2019-01-18
CN109236089B true CN109236089B (en) 2020-04-07

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109025598B (en) * 2018-09-19 2020-07-07 刘晓冰 Door closing system automatically adjusted according to people stream

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160304A (en) * 1978-01-10 1979-07-10 Imc Magnetics Corp. Hold-open accessory for a door closer
EP0767288A1 (en) * 1995-10-06 1997-04-09 Marantec Antriebs- Und Steuerungstechnik Gmbh & Co., Produktions Kg Drive system for closures
JP2002013345A (en) * 2000-06-30 2002-01-18 Howa:Kk Self-closing sliding door with speed adjusting device
CN105531434A (en) * 2013-03-14 2016-04-27 美国耶鲁安全公司 Door closer
CN206972028U (en) * 2017-07-22 2018-02-06 厦门大学嘉庚学院 A kind of example balcony glazings door automatic push-pull closer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160304A (en) * 1978-01-10 1979-07-10 Imc Magnetics Corp. Hold-open accessory for a door closer
EP0767288A1 (en) * 1995-10-06 1997-04-09 Marantec Antriebs- Und Steuerungstechnik Gmbh & Co., Produktions Kg Drive system for closures
JP2002013345A (en) * 2000-06-30 2002-01-18 Howa:Kk Self-closing sliding door with speed adjusting device
CN105531434A (en) * 2013-03-14 2016-04-27 美国耶鲁安全公司 Door closer
CN206972028U (en) * 2017-07-22 2018-02-06 厦门大学嘉庚学院 A kind of example balcony glazings door automatic push-pull closer

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Effective date of registration: 20200309

Address after: 350200 Fujian city of Fuzhou province Changle City Wu Hangxi Town Road No. 5 Building 6 No. 601

Applicant after: Liu Zhiwei

Address before: 246000 Jinxing District, Wanjiang Avenue, Yingjiang District, Anqing City, Anhui Province

Applicant before: Yu Xian

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Effective date of registration: 20230726

Address after: 526100 One of the plants in the Residents'committee of Shilin Community, Jinli Town, Gaoyao District, Zhaoqing, Guangdong Province (the return place of Jinsheng Industrial Park)

Patentee after: Zhaoqing Gaoyao jinhuida Hardware Products Co.,Ltd.

Address before: 350200 No. 6, No. 5, No. 6, No. 5, Jin Cheng Road, Wu Hang Xi, Changle, Fujian.

Patentee before: Liu Zhiwei