CN113002477A - Safety belt tension detection device, safety belt tension detection method and safety seat - Google Patents
Safety belt tension detection device, safety belt tension detection method and safety seat Download PDFInfo
- Publication number
- CN113002477A CN113002477A CN202110508259.7A CN202110508259A CN113002477A CN 113002477 A CN113002477 A CN 113002477A CN 202110508259 A CN202110508259 A CN 202110508259A CN 113002477 A CN113002477 A CN 113002477A
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- tension
- state
- safety belt
- safety
- detecting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
- B60R2022/4808—Sensing means arrangements therefor
- B60R2022/4816—Sensing means arrangements therefor for sensing locking of buckle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
- B60R2022/4808—Sensing means arrangements therefor
- B60R2022/4841—Sensing means arrangements therefor for sensing belt tension
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
- B60R2022/4866—Displaying or indicating arrangements thereof
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
The invention provides a safety belt tensioning detection device, a safety belt tensioning detection method and a safety seat, relating to the technical field of safety seats, and the safety belt tensioning detection device provided by the invention comprises the following components: the clamping piece, the microswitch and the tension detection sensor; the micro switch and the tension detection sensor are respectively arranged on the buckle piece; the micro switch is used for detecting the connection state of the buckle piece; the tension detection sensor is used for detecting the tension applied to the buckle. The safety belt tensioning detection method provided by the invention comprises the following steps: identifying a state signal of the microswitch and judging the connection state of the buckle piece; when the fastener is in a locking state, judging the use state of the safety belt according to a signal of the tension detection sensor; when the fastener is in the unlocking state, an alarm signal is sent out through the prompting device. The safety belt tensioning detection device, the safety belt tensioning detection method and the safety seat provided by the invention can accurately detect the connection state of the buckle piece and the tension of the safety belt.
Description
Technical Field
The invention relates to the technical field of safety seats, in particular to a safety belt tensioning detection device, a safety belt tensioning detection method and a safety seat.
Background
When the child safety seat is used, the buckling piece needs to be firmly jointed, and the safety belt needs to be tensioned, so that the safety protection function is ensured to be normal. However, when the user uses the safety seat, the user usually needs to determine the connection state of the latch according to the visual or the latch prompt sound, so that the connection state of the latch may be erroneously determined. In addition, when the buckle was installed to the locking state, the safety belt need possess enough big pulling force and just can play the constraint effect to the passenger, only relies on hand power response to be difficult to make the pretightning force of safety belt accord with the safety protection demand.
Disclosure of Invention
The invention aims to provide a safety belt tensioning detection device, a safety belt tensioning detection method and a safety seat, which can accurately detect the connection state of a fastener and the tension of a safety belt.
In a first aspect, the present invention provides a seat belt tension detecting apparatus comprising: the clamping piece, the microswitch and the tension detection sensor;
the micro switch and the tensioning detection sensor are respectively arranged on the buckle piece;
the micro switch is used for detecting the connection state of the buckle piece;
the tension detection sensor is used for detecting tension applied to the buckling piece.
With reference to the first aspect, the present disclosure provides a first possible implementation manner of the first aspect, wherein the tension detecting sensor includes a pressure sensor, and the pressure sensor is mounted on the fastener;
the pressure sensor has a force-bearing surface which is subjected to a pressure in the tensioned state of the safety belt.
With reference to the first aspect, the present invention provides a second possible implementation manner of the first aspect, wherein the microswitch and the tension detection sensor are respectively connected with a controller, and the controller is connected with a prompting device.
With reference to the second possible implementation manner of the first aspect, the present invention provides a third possible implementation manner of the first aspect, wherein the prompting device includes an indicator light, a buzzer or a display.
With reference to the second possible implementation manner of the first aspect, the present invention provides a fourth possible implementation manner of the first aspect, wherein the controller is connected with a communication device, and the communication device is configured to communicate with a mobile terminal or a server.
In a second aspect, the present invention provides a seat belt tension detecting method that employs the seat belt tension detecting apparatus provided in the first aspect and includes the steps of:
identifying a state signal of the microswitch and judging the connection state of the buckle piece;
when the buckling piece is in a locking state, judging the use state of the safety belt according to a signal of a tensioning detection sensor;
and when the fastener is in an unlocking state, an alarm signal is sent out through a prompting device.
With reference to the second aspect, the present invention provides a first possible implementation manner of the second aspect, wherein the step of determining the use state of the seat belt based on the signal of the tension detection sensor includes:
acquiring a tension force test value of the tension detection sensor;
if the tension force test value is smaller than a preset tension value, judging that the safety belt is not tensioned;
and if the tension force test value is greater than or equal to the preset tension force value, judging that the safety belt is tensioned.
With reference to the first possible implementation manner of the second aspect, the present invention provides a second possible implementation manner of the second aspect, wherein the seat belt tension detecting method further includes:
under the state that the safety belt is not tensioned, the prompting device is controlled to send out a prompting signal;
in a state where the webbing is tightened, the controller enters a sleep state.
With reference to the second possible implementation manner of the second aspect, the present invention provides a third possible implementation manner of the second aspect, wherein the seat belt tension detecting method further includes:
when the buckling piece is switched from the locking state to the unlocking state, the controller is switched from the dormant state to the working state.
In a third aspect, the present invention provides a safety seat fitted with the belt-tightening detecting device provided in the first aspect.
The embodiment of the invention has the following beneficial effects: adopt micro-gap switch and taut detection sensor to install respectively on buckle spare, detect the connection status of buckle spare through micro-gap switch, detect the pulling force that buckle spare received through taut detection sensor to can avoid the connection status of buckle spare to produce the erroneous judgement, and can accurately detect the pulling force of safety belt, so that realize the safety protection effect of preferred.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of a seat belt tension detecting apparatus provided in an embodiment of the present invention;
fig. 2 is a schematic diagram of a microswitch, a tension detection sensor, a controller, a prompting device and a communication device of the seat belt tension detecting apparatus provided by the embodiment of the present invention;
fig. 3 is a flowchart of a seat belt tightening detection method according to an embodiment of the present invention.
Icon: 100-a fastener; 200-a microswitch; 300-a strain detection sensor; 400-a controller; 500-a reminder device; 600-a communication device; 700-circuit board.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "physical quantity" in the formula, unless otherwise noted, is understood to mean a basic quantity of a basic unit of international system of units, or a derived quantity derived from a basic quantity by a mathematical operation such as multiplication, division, differentiation, or integration.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1, a seat belt tension detecting apparatus according to an embodiment of the present invention includes: a latch 100, a microswitch 200 and a tension detection sensor 300;
the microswitch 200 and the tension detection sensor 300 are respectively installed on the fastener 100;
the microswitch 200 is used for detecting the connection state of the fastener 100;
the tension detecting sensor 300 detects a tension applied to the latch 100.
The connection state of the fastener 100 can be detected by the microswitch 200, when the fastener 100 is connected and locked, the tension detection sensor 300 can detect the tension applied to the fastener 100, the tension applied to the fastener 100 is equal to the tension applied to the safety belt, and then whether the safety belt is tensioned can be detected, so that the safety belt can be tensioned to a state with better safety protection effect.
In the embodiment of the present invention, the tension detecting sensor 300 includes a pressure sensor, which is mounted on the buckle 100;
the pressure sensor has a force-receiving surface that receives pressure when the seat belt is in a tensioned state.
When the safety belt is used, the safety belt is pulled, and the safety belt exerts pressure on the pressure sensor, and the pressure exerted on the pressure sensor can be equal to the pulling force exerted on the safety belt.
As shown in fig. 1 and 2, the microswitch 200 and the tension detecting sensor 300 are connected to the controller 400, respectively, and the controller 400 is connected to the presentation device 500.
Specifically, the controller 400 and the prompting device 500 are both mounted on the circuit board 700, when the connection of the fastener 100 is completed, the micro switch 200 is triggered, and the controller 400 determines the connection state of the fastener 100 according to the signal of the micro switch 200. Also, the controller 400 may recognize the tightening force of the seat belt according to the signal of the tightening detection sensor 300, and the warning device 500 may send a warning signal when the seat belt is not tightened, thereby warning a user to adjust that the seat belt is tightened.
Further, the prompting device 500 includes an indicator light, a buzzer, or a display.
Specifically, the indicator light and the buzzer can generate warning signals, and a user is reminded to adjust the tensioning state of the safety belt through the warning signals. When the safety belt is not tensioned, the display can generate a prompt signal to remind a user to adjust the safety belt; the display feeds back a status signal of the seat belt to the user when the seat belt is tightened.
Further, the controller 400 is connected with a communication device 600, and the communication device 600 is used for communication with a mobile terminal or a server.
Specifically, the communication device 600 adopts a bluetooth, WIFI, 4G or 5G communication module to realize communication with a mobile terminal or a server, so as to remotely check the tightening state of the seat belt.
Example two
As shown in fig. 1, 2 and 3, a seat belt tension detecting method according to an embodiment of the present invention uses a seat belt tension detecting device according to an embodiment, and includes the steps of:
recognizing a state signal of the microswitch 200 and judging the connection state of the fastener 100;
when the fastener 100 is in a locked state, judging the use state of the safety belt according to the signal of the tension detection sensor 300;
when the fastener 100 is in the unlocked state, an alarm signal is sent out through the prompting device 500.
Upon belt pull detection, microswitch 200 is triggered when the connection of catch 100 is complete. The connection state of the fastener 100 can be determined by detecting the state signal of the microswitch 200. When the fastener 100 is completely connected and reaches a locking state, the seat belt is pulled and is in a stretching state, the tension force of the seat belt is detected by the tension detection sensor 300, and if the fastener 100 is in an unlocking state, the prompting device 500 sends out a warning signal to sequentially prompt a user to stably connect the fastener 100.
In the embodiment of the present invention, the step of determining the use state of the seat belt based on the signal of the tension detecting sensor 300 includes:
acquiring a tension test value of the tension detection sensor 300;
if the tension force test value is smaller than the preset tension value, judging that the safety belt is not tensioned;
and if the tension force test value is greater than or equal to the preset tension force value, judging that the safety belt is tensioned.
The tension of safety belt is less than and predetermines the pulling force value then is difficult to reach the safety protection utility, only when the tension of safety belt is greater than or equal to when predetermineeing the pulling force value, the safety belt can play good constraint effect to the user to realize passive safety protection. It should be noted that the preset tension value can be tested and determined according to safety experiments, and can be calibrated in combination with the comfort senses of the user.
Further, the seat belt tension detection method further includes:
when the safety belt is not tensioned, the prompting device 500 is controlled to send out a prompting signal;
in the state where the webbing is tightened, the controller 400 enters the sleep state.
When the webbing is tightened, the controller 400 switches to the sleep state, and the controller 400 and the tension detecting sensor 300 may stop operating, thereby achieving low-power operation of the webbing tension detecting device.
When the locking state of the locking element 100 is switched to the unlocking state, the controller 400 is switched from the dormant state to the working state. In the working state, the controller 400 determines the connection state of the buckle 100 according to the state signal of the microswitch 200, and when the buckle 100 is in the locking state, obtains the tension test value of the tension detection sensor 300, and determines the tension state of the seat belt according to the tension test value. When the fastener 100 is in the unlocking state, the prompting device 500 sends a prompting signal, the fastener 100 is switched to the locking state and triggers the micro switch 200, and the tightening force of the safety belt is detected through the tightening detection sensor 300 again.
EXAMPLE III
The safety seat provided by the embodiment of the invention is provided with the safety belt tensioning detection device, so that the safety seat has the technical effect of the safety belt tensioning detection device, and the details are not repeated.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A seat belt tension detecting device, comprising: the device comprises a fastener (100), a microswitch (200) and a tension detection sensor (300);
the microswitch (200) and the tension detection sensor (300) are respectively arranged on the buckle piece (100);
the microswitch (200) is used for detecting the connection state of the buckle (100);
the tension detection sensor (300) is used for detecting tension applied to the fastener (100).
2. The seatbelt-tensioning detecting device according to claim 1, characterized in that the tensioning detecting sensor (300) includes a pressure sensor mounted on the buckle (100);
the pressure sensor has a force-bearing surface which is subjected to a pressure in the tensioned state of the safety belt.
3. The seatbelt-tensioning detecting device according to claim 1, characterized in that the microswitch (200) and the tensioning detecting sensor (300) are respectively connected to a controller (400), and the controller (400) is connected to a prompting means (500).
4. The seat belt tensioning detection device according to claim 3, characterized in that the prompting means (500) comprises an indicator light, a buzzer or a display.
5. The seat belt tensioning detection device according to claim 3, characterized in that the controller (400) is connected with a communication means (600), the communication means (600) being used for communication with a mobile terminal or a server.
6. A seat belt tension detecting method characterized by employing the seat belt tension detecting apparatus according to any one of claims 1 to 5, and comprising the steps of:
identifying a state signal of the microswitch (200) and judging the connection state of the fastener (100);
when the fastener (100) is in a locked state, judging the use state of the safety belt according to a signal of a tension detection sensor (300);
when the fastener (100) is in an unlocking state, a warning signal is sent out through a prompting device (500).
7. The seat belt tension detecting method according to claim 6, wherein the step of determining the use state of the seat belt based on the signal of the tension detecting sensor (300) includes:
acquiring a tension test value of the tension detection sensor (300);
if the tension force test value is smaller than a preset tension value, judging that the safety belt is not tensioned;
and if the tension force test value is greater than or equal to the preset tension force value, judging that the safety belt is tensioned.
8. The seat belt tension detecting method according to claim 7, further comprising:
controlling the prompting device (500) to send out a reminding signal when the safety belt is not tensioned;
in a state where the webbing is tightened, the controller (400) enters a sleep state.
9. The seat belt tension detecting method according to claim 8, further comprising:
when the fastener (100) is switched from a locking state to an unlocking state, the controller (400) is switched from the dormant state to a working state.
10. A safety seat provided with a belt tension detecting device according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110508259.7A CN113002477A (en) | 2021-05-10 | 2021-05-10 | Safety belt tension detection device, safety belt tension detection method and safety seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110508259.7A CN113002477A (en) | 2021-05-10 | 2021-05-10 | Safety belt tension detection device, safety belt tension detection method and safety seat |
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| CN113002477A true CN113002477A (en) | 2021-06-22 |
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| CN202110508259.7A Pending CN113002477A (en) | 2021-05-10 | 2021-05-10 | Safety belt tension detection device, safety belt tension detection method and safety seat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114509287A (en) * | 2022-04-21 | 2022-05-17 | 宁波惠尔顿婴童安全科技股份有限公司 | Safety seat rotation detection device |
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| CN108225429A (en) * | 2018-01-16 | 2018-06-29 | 黑子信息科技（广东）有限公司 | Comfort level monitoring method and device |
| CN208530504U (en) * | 2018-05-17 | 2019-02-22 | 麦克英孚(宁波)婴童用品有限公司 | A kind of belt tensioning force checking device and child safety seat |
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2021
- 2021-05-10 CN CN202110508259.7A patent/CN113002477A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003095060A (en) * | 2001-09-25 | 2003-04-03 | Aisin Seiki Co Ltd | Occupant judgement device |
| CN203142608U (en) * | 2013-03-01 | 2013-08-21 | 北京汽车股份有限公司 | Safety belt and automobile with safety belt |
| CN104309571A (en) * | 2014-09-29 | 2015-01-28 | 陕西理工学院 | Automobile running safety auxiliary device |
| CN204641663U (en) * | 2015-05-19 | 2015-09-16 | 吕俊飞 | A kind of safety belt reminding device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114509287A (en) * | 2022-04-21 | 2022-05-17 | 宁波惠尔顿婴童安全科技股份有限公司 | Safety seat rotation detection device |
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Application publication date: 20210622 |