CN208715146U - A kind of safety belt monitoring system using gear drive - Google Patents
A kind of safety belt monitoring system using gear drive Download PDFInfo
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- CN208715146U CN208715146U CN201821249704.2U CN201821249704U CN208715146U CN 208715146 U CN208715146 U CN 208715146U CN 201821249704 U CN201821249704 U CN 201821249704U CN 208715146 U CN208715146 U CN 208715146U
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- gear
- transmission
- safety belt
- transmission gear
- monitoring system
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Abstract
The utility model discloses a kind of safety belt monitoring system using gear drive, seat belt status detection sensor is provided in seat belt retractor, safety belt extension elongation proportion is driven into potentiometer by gear drive, and by PCB circuit board output resistance to locking monitor control mechanism.Safety belt monitoring system is innovatively proposed, the whether empty system of safety belt is determined by monitoring the extension elongation of safety belt, has accurately monitoring alarm and reminding function, non-normal use safety belt user is reminded to fasten seat belts.It is monitored information feedback by way of potentiometer output resistance, without additional power supply, prevents the false alarm under electroless state from happening.Safety belt is stretched out by the effective travel that displacement is converted to potentiometer after matching using gear transmission mode, meets the use demand of potentiometer.Space requirement is low, is able to satisfy the demand of implantation seat belt retractor.Whole design is ingenious, reliable, improves indirectly and multiplying for power-driven tool drives safety.
Description
Technical field
The utility model relates to a kind of safety belt monitoring system more particularly to a kind of safety belts using gear drive
Monitoring system belongs to the technical field that safe driving ensures monitoring system.
Background technique
Safety belt just had existed for before automotive practical is novel, and 1885, Europe generally used carriage, peace at that time
Only simple passenger in order to prevent throws full band from carriage.Started safety belt occur on aircraft by 1910.1922
Year, the sport car on cycling track begins to use safety belt, and to nineteen fifty-five, U.S.'s ford car starts dress safety belt, overall next
Say the safety belt in this period based on two-point belt.Nineteen fifty-five aircraft designer's Neil this arrive Volvo Aktiebolaget's work
Make later utility model three-point safety belt.1963, Volvo Aktiebolaget start Neil this bikini automobile peace
Full band registration, and assembled on self-produced automobile.Nineteen sixty-eight, the U.S. provide that the seat of car face forward is intended to installation safety
Band, the developed countries such as Europe and Japan have also formulated automobile passenger in succession must wear the regulation of safety belt.The Ministry of Public Security, China in
Promulgated on November 15th, 1992 notice, it is specified that from July 1st, 1993, all minibuses (including car, jeep, bread
Vehicle, minicar) driver and front row seat rider must use of seat belts." law on road traffic safety " the 51st article of regulation:
When motor-driven vehicle going, driver, passenger should use according to regulations safety belt.Most popular at present is three-point seat
Band.
In the prior art, it either uses of seat belts and controller or is directly controlled using BCM Body Control Module (BCM),
To judge whether passenger fastens safety by checking seating pressure sensor (SBR) and safety belt lock catch (Buckle) state
Band.
It is existing when driver and passenger are using additional safe buckle, and after additional safe buckle is inserted into safety belt lock catch
Safety belt controller and car body control module will be considered that driver and passenger have fastened seat belts, thus without remind；
When on seat without sitting people, safety belt is pulled out in advance, and safe buckle is plugged directly into safety belt lock catch
(Buckle) in, at this time if someone takes seat, safety belt void system is caused.The safety belt of void system is to driver and passenger without any
Protection, but safety belt controller and car body control module will be considered that driver and passenger have fastened seat belts, thus without mentioning
It wakes up.
Therefore, safety belt tie-down monitoring is only carried out by traditional seating pressure sensor and safety belt lock catch state to deposit
It in loophole, does not ensure that passenger has fastened safety belt, occurs so as to cause the dangerous situation in traffic accident.
Utility model content
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, for can not monitor safety belt in the prior art
The problem of whether substance is in place, proposes a kind of safety belt monitoring system using gear drive.
In order to achieve the above object, the technology employed by the present utility model is
A kind of safety belt monitoring system using gear drive is applied in power-driven tool, the power-driven tool packet
The safe tape cell for including seat and being arranged on the seat, the safe tape cell include seat belt retractor, safety belt, peace
Complete locking buckle mechanism and locking monitor control mechanism, the power-driven tool is interior to be equipped with alert mechanism,
The locking monitor control mechanism includes safety belt controller, BCM Body Control Module,
It is equipped with the seat belt status for monitoring the safety belt extension elongation in the seat belt retractor and detects sensing
Device, the locking monitor control mechanism communicate with seat belt status detection sensor, safety belt lock buckle mechanism, alert mechanism company respectively
It connects,
The seat belt status detection sensor includes sensor housing, be equipped in the sensor shell body transmission main shaft,
Output shaft and for it is described locking monitor control mechanism output resistance PCB circuit board,
The transmission main shaft is connected with the shaft in the seat belt retractor,
The PCB circuit board is equipped with the potentiometer of the output shaft interference and communicates with the locking monitor control mechanism
The connector of connection is interrogated,
The transmission mechanism for adjusting transmission ratio is equipped between the transmission main shaft and the output shaft,
The transmission mechanism includes the first end tooth wheel being arranged on the transmission main shaft, the end being arranged on the output shaft
End tooth wheel and at least one transmission gear being arranged between the first end tooth wheel and the end gear, arbitrary neighborhood gear
Between be meshed.
Preferably, the threshold values control for monitoring the PCB circuit board output resistance is equipped in the locking monitor control mechanism
Device processed.
Preferably, the rotating range of the output shaft is less than 360 °.
Preferably, the transmission mechanism includes the first transmission gear, the second transmission gear and third transmission gear, any institute
It states transmission gear and respectively includes the driven fluted disc of transmission input and the driving gear disc of transmission output, and the tooth of the driven fluted disc
Number is greater than the number of teeth of the driving gear disc,
It is described just end tooth wheel be meshed with the driven fluted disc of first transmission gear, the active of first transmission gear
Fluted disc is meshed with the driven fluted disc of second transmission gear, the driving gear disc of second transmission gear and the third pass
The driven fluted disc of moving gear is meshed, the driving gear disc of the third transmission gear is meshed with the end gear.
Preferably, the just transmission ratio of end tooth wheel and first transmission gear is 2~3；
The transmission ratio of first transmission gear and second transmission gear is 2~3；
The transmission ratio of second transmission gear and the third transmission gear is 1.5~2；
The transmission ratio of the third transmission gear and the end gear is 1.5~2.
Preferably, the just transmission ratio of end tooth wheel and the end gear is greater than 20.
Preferably, the just transmission ratio of end tooth wheel and first transmission gear is 2.7；
The transmission ratio of first transmission gear and second transmission gear is 2.7；
The transmission ratio of second transmission gear and the third transmission gear is 1.84；
The transmission ratio of the third transmission gear and the end gear is 1.87.
The beneficial effects of the utility model are mainly reflected in:
1. innovatively proposing safety belt monitoring system, whether safety belt is determined by monitoring the extension elongation of safety belt
Void system has accurately monitoring alarm and reminding function, non-normal use safety belt user is reminded to fasten seat belts.
2. being monitored information feedback by way of potentiometer output resistance, without additional power supply, prevent without electric shape
False alarm under state happens.
3. safety belt is stretched out the effective travel that displacement is converted to potentiometer after matching using gear transmission mode, meet
The use demand of potentiometer.
4. space requirement is low, it is able to satisfy the demand of implantation seat belt retractor.
5. whole design is ingenious, reliable, improves indirectly and multiplying for power-driven tool drive safety.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model middle gear transmission mechanism.
Fig. 2 is the section view diagram of the utility model middle gear transmission mechanism.
Fig. 3 is the overall structure diagram of the utility model safety belt monitoring system.
Specific embodiment
The utility model provides a kind of safety belt monitoring system using gear drive.Below in conjunction with attached drawing to this reality
It is described in detail with new technique scheme, so that it is more readily understood and grasps.
A kind of safety belt monitoring system using gear drive is applied in power-driven tool, as shown in figure 3, motor-driven
Tool includes seat 1 and the safe tape cell that is arranged on seat 1, and safe tape cell includes seat belt retractor 2, safety belt
3, safety belt lock buckle mechanism 4 and locking monitor control mechanism 5, power-driven tool is interior to be equipped with alert mechanism.
It specifically describes, power-driven tool includes motor vehicles, power vessels, power-driven plane etc., and power-driven tool can be present
Safe tape cell is set on chair 1, driver, passenger etc., when there is emergency episode, human body pair are fastened by safety belt
There are an instant impacts for safety belt 3, under the impact force action, 2 locking safety belt of seat belt retractor, in safety belt
Under protective effect human body will not inertia wash from conduct, this principle belongs to the prior art.
According to traffic method relevant regulations, when taking motor vehicles, it is currently to pass through safety that needs, which are fastened seat belts,
Whether the belt buckle 31 for being monitored safety belt with buckle mechanism 4 assembles in place, to issue associated monitoring information to lock
Tight monitor control mechanism 5, by monitor state selective actuation alert mechanism, so that personnel be reminded to wear safety belt.
In addition, also having using seat sensor, 4 cooperative monitoring of belt latch mechanism, i.e., when seat sensor monitors
When people is sat on the seat, the function triggering of belt latch mechanism 4 can be just triggered.
And generally, locking monitor control mechanism includes safety belt controller, BCM Body Control Module, that is, passes through safety belt controller
It is monitored or is monitored by BCM Body Control Module, this principle belongs to the prior art.
In this case, it is equipped with the seat belt status for monitoring 3 extension elongation of safety belt in seat belt retractor 2 and detects biography
Sensor 6, locking monitor control mechanism 5 communicate with seat belt status detection sensor 6, safety belt lock buckle mechanism 5, alert mechanism respectively
Connection.
It specifically describes, the extension elongation of safety belt 3 can be monitored by the seat belt status detection sensor 6, thus
It can ensure that passenger seatbelt wearing in place, reduce the injures and deaths risk of traffic accident.
Principle explanation, it is well known that many motor vehicle driving personnel pass through purchase monomer hasp or safety belt is empty at present
The mode of system evades the security alarm of vehicle, is difficult to carry out the substantive monitoring for fastening safety belt, this case passes through monitoring safety belt
The length being stretched carries out substantive monitoring.For example, safety belt extension elongation is not in reasonable model at this time when safety belt void is
It encloses, therefore vehicle still carries out alarm, personnel is reminded to carry out safety belt disposition in place.
Refinement ground, seat belt status detection sensor 6 include sensor housing 61, and transmission master is equipped in sensor housing 61
Axis 7, output shaft 8 and for the PCB circuit board 9 to locking 5 output resistance of monitor control mechanism, transmission main shaft 7 and safety belt furl
Shaft 21 in device 2 is connected, i.e., transmission main shaft 7 and shaft 21 are servo-actuated or the two is unified, PCB circuit board 9 be equipped with
The connector 92 of the potentiometer 91 of 8 interference of output shaft and the connection that communicates with locking monitor control mechanism 5, output shaft 8 are able to achieve
The swing offset of potentiometer 91 is equipped between transmission main shaft 7 and output shaft 8 for adjusting transmission to generate resistance value output
The transmission mechanism of ratio.
Specific embodiment is as depicted in figs. 1 and 2, and transmission mechanism includes the first end tooth wheel 71 being arranged on transmission main shaft 7, sets
It sets in the end gear 81 on output shaft 8 and at least one driving cog being arranged between first end tooth wheel 71 and end gear 81
It takes turns, is meshed between arbitrary neighborhood gear.
Principle explanation, pulls safety belt 3, and safety belt 3 is stretched out from seat belt retractor 2, drives safety during stretching out
Shaft 21 in Webbing retractor 2 rotates, and transmission main shaft 7 and 21 coaxial rotating of shaft, first end tooth wheel 71 thereon pass through driving cog
Transmission of 10 terminad gears 81 output after transmission proportion is taken turns, output shaft 8 drives potentiometer 91 to generate resistance value output.When
After unlocking safety belt, safety belt self-return, potentiometer resets, and resistance value exports return origin.
Potentiometer 91 is made to export different resistance outward by circuit board 9 and connector 92 by mechanical mode
Value, locking monitor control mechanism 5 judge whether safety belt stretching meets the requirements to selectivity triggering alarm by the resistance value.
In addition, the design of transmission mechanism can easily be accommodated transmission ratio, it is well known that potentiometer 91 has certain effective row
Journey, and the extension elongation of safety belt 3 is longer, can not adapt to the effective travel of potentiometer 91, can adjust transmission by transmission mechanism
Than meeting the effective travel demand of potentiometer 91 so that longer extension elongation to be converted to shorter stroke.
It should be noted that seat belt retractor whole rotating cycle about 15 encloses, output shaft can be made by being driven proportion
81 rotating range is less than 360 °, by the rotating cycle control of final potentiometer in 0.6 circle left and right, so that meeting potentiometer has
Imitate stroke.
More refinement ground explanation, the interior threshold values control being equipped with for monitoring 9 output resistance of PCB circuit board of locking monitor control mechanism 5
Device processed, threshold values controller is interior to be equipped with threshold values, the starting alarm when output resistance is less than the threshold values.
Refinement description carried out to transmission mechanism, transmission mechanism includes the first transmission gear 10, the second transmission gear 20 and the
Three transmission gears 30, any transmission gear respectively include the driven fluted disc of transmission input and the driving gear disc of transmission output, and
The number of teeth of driven fluted disc is greater than the number of teeth of driving gear disc, i.e. transmission gear is reduction gearing.
Specifically, first end tooth wheel 71 be meshed with the driven fluted disc 101 of the first transmission gear 10, the first transmission gear 10
Driving gear disc 102 be meshed with the driven fluted disc 201 of the second transmission gear 20, the driving gear disc 202 of the second transmission gear 20
It is meshed with the driven fluted disc 301 of third transmission gear 30, the driving gear disc 302 of third transmission gear 30 and 81 phase of end gear
Engagement.After the transmission of three transmission gears proportion, the transmission ratio of transmission main shaft 7 Yu output shaft 8 can be greatly adjusted, is met
The effective travel demand of potentiometer 91.
Transmission ratio is optimized, the transmission ratio of first end tooth wheel 71 and the first transmission gear 10 is 2~3；First driving cog
The transmission ratio of wheel 10 and the second transmission gear 20 is 2~3；The transmission ratio of second transmission gear 20 and third transmission gear 30 is
1.5~2；The transmission ratio of third transmission gear 30 and end gear 81 is 1.5~2.
It should be noted that just end tooth wheel 71 and the transmission ratio of end gear 81 are greater than 20, so it is able to satisfy in safety belt
Demand is arranged in space in coiler 2.
In optimum embodiment, the transmission ratio of first end tooth wheel 71 and the first transmission gear 10 is 2.7；First transmission gear 10
Transmission ratio with the second transmission gear 20 is 2.7；The transmission ratio of second transmission gear 20 and third transmission gear 30 is 1.84；The
The transmission ratio of three transmission gears 30 and end gear 81 is 1.87, i.e. transmission main shaft 7 and the resultant gear ratio of output shaft 8 is
25.08 meeting actual demand.
Finally, transmission uses fine module gear form, gear material is resistance to using high molecular materials, materials such as POM, PA, PBT
It grinds and performance is stablized, can satisfy the requirement of safety belt life-cycle completely, using the form of gear, gear coefficient of friction is small, will not
The movement of coiler is impacted, gear structure can choose ordinary straight gear, helical gear, herringbone bear etc..
By above description it can be found that the utility model safety belt monitoring system, innovatively proposes safety belt monitoring
System determines the whether empty system of safety belt by monitoring the extension elongation of safety belt, has accurately monitoring alarm and reminding function,
Non- normal use safety belt user is reminded to fasten seat belts.It is anti-that information is monitored by way of potentiometer output resistance
Feedback prevents the false alarm under electroless state from happening without additional power supply.Safety belt is stretched out by position using gear transmission mode
Moved through the effective travel for being converted to potentiometer after proportion, the use demand of potentiometer is met.Space requirement is low, is able to satisfy implantation
The demand of seat belt retractor.Whole design is ingenious, reliable, improves indirectly and multiplying for power-driven tool drives safety.
The technical solution of the utility model is fully described above, it should be noted that the tool of the utility model
Body embodiment is simultaneously not limited by the description set out above, and those skilled in the art exist according to the Spirit Essence of the utility model
All technical solutions that structure, method or function etc. are formed using equivalents or equivalent transformation, all fall within this reality
Within novel protection scope.
Claims (7)
1. a kind of safety belt monitoring system using gear drive is applied in power-driven tool, the power-driven tool includes
Seat and the safe tape cell being arranged on the seat, the safe tape cell includes seat belt retractor, safety belt, safety
Locking buckle mechanism and locking monitor control mechanism, the power-driven tool is interior to be equipped with alert mechanism,
The locking monitor control mechanism includes safety belt controller, BCM Body Control Module,
It is characterized by:
The seat belt status detection sensor for monitoring the safety belt extension elongation, institute are equipped in the seat belt retractor
Locking monitor control mechanism is stated to communicate and connect with seat belt status detection sensor, safety belt lock buckle mechanism, alert mechanism respectively,
The seat belt status detection sensor includes sensor housing, and transmission main shaft, output are equipped in the sensor shell body
Axis and for it is described locking monitor control mechanism output resistance PCB circuit board,
The transmission main shaft is connected with the shaft in the seat belt retractor,
The PCB circuit board is equipped with the potentiometer interferenceed with the output shaft and communicates company with the locking monitor control mechanism
The connector connect,
The transmission mechanism for adjusting transmission ratio is equipped between the transmission main shaft and the output shaft,
The transmission mechanism includes the first end tooth wheel being arranged on the transmission main shaft, the terminal teeth being arranged on the output shaft
Wheel and described just at least one transmission gear between end tooth wheel and the end gear is set, between arbitrary neighborhood gear
It is meshed.
2. a kind of safety belt monitoring system using gear drive according to claim 1, it is characterised in that: the lock
The threshold values controller for monitoring the PCB circuit board output resistance is equipped in tight monitor control mechanism.
3. a kind of safety belt monitoring system using gear drive according to claim 1, it is characterised in that: described defeated
The rotating range of shaft is less than 360 °.
4. a kind of safety belt monitoring system using gear drive according to claim 3, it is characterised in that: the biography
Motivation structure includes the first transmission gear, the second transmission gear and third transmission gear, and any transmission gear respectively includes passing
The driven fluted disc of dynamic input and the driving gear disc of transmission output, and the number of teeth of the driven fluted disc is greater than the driving gear disc
The number of teeth, it is described just end tooth wheel be meshed with the driven fluted disc of first transmission gear, the driving tooth of first transmission gear
Disk is meshed with the driven fluted disc of second transmission gear, the driving gear disc of second transmission gear and the third are driven
The driven fluted disc of gear is meshed, the driving gear disc of the third transmission gear is meshed with the end gear.
5. a kind of safety belt monitoring system using gear drive according to claim 4, it is characterised in that:
The just transmission ratio of end tooth wheel and first transmission gear is 2~3；
The transmission ratio of first transmission gear and second transmission gear is 2~3；
The transmission ratio of second transmission gear and the third transmission gear is 1.5~2；
The transmission ratio of the third transmission gear and the end gear is 1.5~2.
6. a kind of safety belt monitoring system using gear drive according to claim 5, it is characterised in that:
The just transmission ratio of end tooth wheel and the end gear is greater than 20.
7. a kind of safety belt monitoring system using gear drive according to claim 5, it is characterised in that:
The just transmission ratio of end tooth wheel and first transmission gear is 2.7；
The transmission ratio of first transmission gear and second transmission gear is 2.7；
The transmission ratio of second transmission gear and the third transmission gear is 1.84；
The transmission ratio of the third transmission gear and the end gear is 1.87.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821249704.2U CN208715146U (en) | 2018-08-04 | 2018-08-04 | A kind of safety belt monitoring system using gear drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821249704.2U CN208715146U (en) | 2018-08-04 | 2018-08-04 | A kind of safety belt monitoring system using gear drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208715146U true CN208715146U (en) | 2019-04-09 |
Family
ID=65976259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821249704.2U Expired - Fee Related CN208715146U (en) | 2018-08-04 | 2018-08-04 | A kind of safety belt monitoring system using gear drive |
Country Status (1)
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| CN (1) | CN208715146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108791182A (en) * | 2018-08-04 | 2018-11-13 | 苏州启威电子有限公司 | A kind of safety belt monitoring system using specific gear drive mechanism |
-
2018
- 2018-08-04 CN CN201821249704.2U patent/CN208715146U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108791182A (en) * | 2018-08-04 | 2018-11-13 | 苏州启威电子有限公司 | A kind of safety belt monitoring system using specific gear drive mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |