CN104964811A - Unbuckling detection device of automobile safety belt buckle - Google Patents
Unbuckling detection device of automobile safety belt buckle Download PDFInfo
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- CN104964811A CN104964811A CN201510262147.2A CN201510262147A CN104964811A CN 104964811 A CN104964811 A CN 104964811A CN 201510262147 A CN201510262147 A CN 201510262147A CN 104964811 A CN104964811 A CN 104964811A
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- slide block
- safety belt
- worktable
- unbuckling
- detection device
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Abstract
The invention provides a unbuckling detection device of an automobile safety belt buckle and belongs to the technical field of automobile safety belt detection equipment. The unbuckling detection device solves technical problems of low detection efficiency, complex operation, and low precision of a conventional product. The unbuckling detection device comprises a worktable to which a fixing seat for fixing a safety belt buckle is fixed. A slide block is disposed on the worktable. A driving mechanism is arranged between the worktable and the slide block and is used for driving the slide block to move in parallel with the fixing seat. The slide block is provided with a force-measuring element and a unbuckling rod. The first endpoint of the unbuckling rod is abutted against the force-measuring element. The second endpoint of the unbuckling rod can be in contact with a unbuckling button fixed to the safety belt buckle on the fixing seat under the driving of the slide block. A distance-measuring element used for detecting the moved distance of the slide block is fixed to the worktable. The unbuckling detection device may compute unbuckling force and unbuckling stroke by one-time feeding of the unbuckling rod, thereby greatly improving detection efficiency. Further, the unbuckling rod of the unbuckling detection device is in directly contact with the force-measuring element and may improve detection precision.
Description
Technical field
The invention belongs to car belt checkout equipment technical field, relate to a kind of open detection device of automobile safety belt buckle.
Background technology
Common automobile safety belt buckle comprises securing band lock body and releases the button, anchor switch.
Whether automobile safety belt buckle opening force and opening travel concern securing band operation convenient, comfortable and reliable, need relevant checkout equipment.Some automobile safety belt buckles comprise ribbon, dead bolt, securing band lock body and release the button.Equipment is backwardness comparatively, screw turns is made to drive tautness meter to pull all-or-nothing piece to move by manual rotation's handwheel, all-or-nothing piece after moving to certain position the snap close be fixed on table top be unlocked, now stop shake leading screw, the record reading of tautness meter and the reading of electronic caliper; The reading of slide calliper rule needs to reset when all-or-nothing piece has just touched the unlatching button of snap close.There is following shortcoming in it: artificial feeding, complex operation; Sense organ by people judges that all-or-nothing piece touches after snap close opens button and carries out electronic caliper clearing, and opening travel exists error; Sense organ by people judges that snap close opens rear feed-disabling, brings deviation to opening travel precision; The friction of all-or-nothing piece slide block is also included by tautness meter reading, brings error to the precision of opening force; Tautness meter self limited precision; Dynamometer can only record maximal force, is difficult to forming curves, is unfavorable for the optimization of opening force details; Tautness meter, all-or-nothing piece and slider track not point-blank, easily produce moment time stressed and affect precision; All-or-nothing piece is below ribbon, and whether all-or-nothing piece contacts with snap close button is not allowed to check.
In order to solve the above problems, some producers devise improved plan, a kind of safety belt lock catch testing machine disclosed in patent CN201120254864.8, comprise the dead bolt be fixed on support and be plugged on the snap close be positioned at below it, the lower end of snap close connects liftable balance weight mechanism, the place's of releasing the button correspondence of snap close is provided with dipper crowding gear, this dipper crowding gear there is pressure transducer, dipper crowding gear extruding is released the button, be separated with dead bolt under latching in the effect of balance weight mechanism, pressure transducer is measured dipper crowding gear and is applied to pressure in dead bolt and snap fit, just the opening pressure of safety belt lock catch can accurately simply be measured thus.
But the technical scheme of this patent also cannot solve said defect above completely; And can not opening travel be measured.
Summary of the invention
The present invention is directed to the problems referred to above that existing technology exists, a kind of open detection device of automobile safety belt buckle is provided, technical matters to be solved by this invention is: how to realize the measurement to safety belt lock catch opening force and opening travel, to improve detection efficiency and degree of accuracy.
Object of the present invention realizes by following technical proposal:
A kind of open detection device of automobile safety belt buckle, described pick-up unit comprises a worktable, it is characterized in that, described worktable is fixed with the holder for fixing securing band lock body, described worktable is provided with slide block, the driving mechanism for driving the relatively described holder translation of this slide block is provided with between described worktable and slide block, described slide block is provided with load-sensing unit and an all-or-nothing piece, first end points of described all-or-nothing piece and load-sensing unit lean, second end points of described all-or-nothing piece can touch releasing the button on the securing band lock body that is fixed on described holder under the drive of slide block, described worktable is also fixed with the distance measurement element for detecting described slide block displacement.
Its principle is as follows: during detection, securing band lock body is fixed on holder, the dead bolt of securing band is plugged on securing band lock body, all-or-nothing piece aims at releasing the button on securing band lock body, the relative holder translation of slide block is driven by driving mechanism, unlatching masthead is pressed off to be opened on button, and then dead bolt is departed from from securing band lock body, because the first end points of all-or-nothing piece and load-sensing unit are fixedly connected, thus load-sensing unit can detect all-or-nothing piece to the acting force of releasing the button, thus calculates safety belt lock catch opening force.In addition, the feeding distance of slide block element testing of being found range goes out, and thus can calculate the opening travel of safety belt lock catch simultaneously.This device only needs all-or-nothing piece primary feed just can calculate opening force and opening travel, substantially increases the efficiency of detection, and meanwhile, the all-or-nothing piece of this device directly contacts with load-sensing unit, can improve the precision of detection.
In the open detection device of above-mentioned a kind of automobile safety belt buckle, described driving mechanism comprises mair motor, leading screw and nut, described mair motor is fixed on described worktable, described nut is fixed on described slide block, the output shaft of described leading screw one end and mair motor is connected, the other end of this leading screw and nut bolt, described worktable is also provided with for the guidance set to slide block horizontally-guided.Mair motor drives screw turns, and the cooperation of leading screw and nut drives slide block to move, and guidance set plays the effect supporting and lead to slide block, slide block with nut rotation, can not can be made the stable feeding of slide block, improve the precision of detection; Alternatively, driving mechanism can also adopt the device such as cylinder, hydraulic cylinder.
In the open detection device of above-mentioned a kind of automobile safety belt buckle, described mair motor Electricity Federation is connected to motor switch, described motor switch is also in series with a normally closed low-voltage control circuit, described low-voltage control circuit can electrically connect mutually with securing band lock body and dead bolt, described low-voltage control circuit can be made to disconnect when dead bolt departs from securing band lock body.Motor switch and low-voltage control circuit are in series and make the work of both co-controlling mair motor, when low-voltage control circuit is in normally off, motor switch can control mair motor work completely, when low-voltage control circuit is in disengaged position at dead bolt and disconnects, mair motor is de-energized and is in halted state, this design concept works as dead bolt once depart from safety belt lock body automatically can stop mair motor, all-or-nothing piece and slide block are synchronously stopped, the displacement of slide block can be measured very accurately, thus obtain the opening travel of safety belt lock catch accurately; Low-voltage control circuit generally adopts the parts such as direct supply and normally closed relay, utilizes dead bolt and securing band lock body to control the circuit between normally closed relay and direct supply, indirectly controls the high-tension circuit that normally closed relay disconnects mair motor, mair motor is stopped.
In the open detection device of above-mentioned a kind of automobile safety belt buckle, described guidance set comprises the clutch shaft bearing seat and the second bearing seat all fixed on the table, be fixed with the guide rod that axis horizontal is arranged between described clutch shaft bearing seat and the second bearing seat, described guide rod is plugged on slide block and both can relative sliding along guide rod axis direction.Guide rod is horizontally disposed with and makes slide block feeding in the horizontal direction, and the feeding of horizontal direction makes all-or-nothing piece just to releasing the button, can not produce error because all-or-nothing piece tilts; Alternatively, guidance set can also comprise slide rail, and skid is connected on slide rail.
In the open detection device of above-mentioned a kind of automobile safety belt buckle, described load-sensing unit is pressure transducer or dynamometer; Described distance measurement element is slide calliper rule or displacement transducer.Pressure transducer can detect the pressure be subject to and produce electric signal, dynamometer energy directly readout value, slide calliper rule directly can read distance values, and displacement transducer can be measured distance and produce electric signal, and above-mentioned two kinds of sensors all can connect with computer system and form intelligent checking system.
In the open detection device of above-mentioned a kind of automobile safety belt buckle, the axis of described guide rod and described all-or-nothing piece parallels, and the direction of measurement of described distance measurement element and the axis direction of described guide rod parallel.Three direction is identical can be made acting force and apart from all accurately errorless, can not produce error because of the deviation of directivity.
In the open detection device of above-mentioned a kind of automobile safety belt buckle, in the middle part of described worktable, there is breach, described breach is positioned at immediately below all-or-nothing piece, weight is provided with below described worktable, described weight is positioned at immediately below breach, described weight can be fixedly connected with the ribbon of securing band, and the below of described weight is provided with cushion pad.After the ribbon of securing band fixed by weight, the ribbon of securing band is strained, makes dead bolt produce certain pretightning force, deduct pretightning force by subsequent calculations and can obtain accurate opening force, compare and do not have the dead bolt of pretension to decrease error, cushion pad is for cushioning the bearing down of weight.
In the open detection device of above-mentioned a kind of automobile safety belt buckle, the output shaft of described mair motor is also fixed with a handwheel, described handwheel and leading screw lay respectively at outer end and the inner of mair motor.The effect of handwheel is the initial position by leading screw adjusting slider, improves the accuracy that opening travel detects.
Compared with prior art, advantage of the present invention is as follows:
1, this device only needs all-or-nothing piece primary feed just can calculate opening force and opening travel, substantially increases the efficiency of detection, and meanwhile, the all-or-nothing piece of this device directly contacts with load-sensing unit, can improve the precision of detection.
2, the dead bolt of this device can stop mair motor automatically once depart from safety belt lock body, all-or-nothing piece and slide block is synchronously stopped, can measuring the displacement of slide block very accurately, thus obtain the opening travel of safety belt lock catch accurately.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of this pick-up unit.
Fig. 2 is the side-looking structural representation of this pick-up unit.
Fig. 3 is the schematic diagram of low-voltage control circuit.
In figure, 1 worktable; 2 holders; 3 slide blocks; 4 driving mechanisms; 5 load-sensing units; 6 all-or-nothing pieces; 7 release the button; 8 mair motor; 9 leading screws; 10 nuts; 11 motor switch; 12 low-voltage control circuits; 13 direct supplys; 14 normally closed relays; 15 clutch shaft bearing seats; 16 second bearing seats; 17 guide rods; 18 breach; 19 weights; 20 cushion pads; 21 handwheels; 22 securing band lock bodies; 23 ribbons; 24 dead bolts; 25 guide shafts; 26 distance measurement element.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As Fig. 1, shown in Fig. 2, this pick-up unit comprises a worktable 1, worktable 1 is fixed with the holder 2 for fixing securing band lock body 22, worktable 1 is provided with slide block 3, the driving mechanism 4 for driving relative holder 2 translation of this slide block 3 is provided with between worktable 1 and slide block 3, driving mechanism 4 comprises mair motor 8, leading screw 9 and nut 10, mair motor 8 is fixed on worktable 1, nut 10 is fixed on slide block 3, the output shaft of leading screw 9 one end and mair motor 8 is connected, the other end of this leading screw 9 and nut 10 bolt, worktable 1 is also provided with for the guidance set to slide block 3 horizontally-guided.Mair motor 8 drives leading screw 9 to rotate, and the cooperation of leading screw 9 and nut 10 drives slide block 3 to move, and guidance set plays the effect supporting and lead to slide block 3, slide block 3 can not be rotated with nut 10, can make slide block 3 feeding stably, improve the precision of detection; Alternatively, driving mechanism 4 can also adopt the device such as cylinder, hydraulic cylinder.
As shown in Figure 1 and Figure 2, slide block 3 is provided with load-sensing unit 5 and an all-or-nothing piece 6, first end points and the load-sensing unit 5 of all-or-nothing piece 6 lean, second end points of all-or-nothing piece 6 can touch under the drive of slide block 3, and the securing band lock body 22 that is fixed on holder 2 releases the button 7, guidance set comprises and is all fixed on clutch shaft bearing seat 15 on worktable 1 and the second bearing seat 16, be fixed with the guide rod 17 that axis horizontal is arranged between clutch shaft bearing seat 15 and the second bearing seat 16, guide rod 17 is plugged on slide block 3 and both can relative sliding along guide rod 17 axis direction.Guide rod 17 is horizontally disposed with and makes slide block 3 feeding in the horizontal direction, and the feeding of horizontal direction makes all-or-nothing piece 6 just to releasing the button 7, can not produce error because all-or-nothing piece 6 tilts; Alternatively, guidance set can also comprise slide rail, and slide block 3 is slidably connected on slide rail.Guide rod 17 and the axis both all-or-nothing piece 6 parallel, and the direction of measurement of distance measurement element 26 and the axis direction of guide rod 17 parallel.Three direction is identical can be made acting force and apart from all accurately errorless, can not produce error because of the deviation of directivity.
As shown in Figure 1, Figure 2 and Figure 3, worktable 1 is also fixed with the distance measurement element 26 for detecting slide block 3 displacement.Load-sensing unit 5 is pressure transducer or dynamometer; Distance measurement element 26 is slide calliper rule or displacement transducer.Pressure transducer can detect the pressure be subject to and produce electric signal, dynamometer energy directly readout value, slide calliper rule directly can read distance values, and displacement transducer can be measured distance and produce electric signal, and above-mentioned two kinds of sensors all can connect with computer system and form intelligent checking system.Mair motor 8 Electricity Federation is connected to motor switch 11, motor switch 11 is also in series with a normally closed low-voltage control circuit 12, low-voltage control circuit 12 can electrically connect mutually with securing band lock body 22 and dead bolt 24, low-voltage control circuit 12 can be made to disconnect when dead bolt 24 departs from securing band lock body 22.Motor switch 11 and low-voltage control circuit 12 are in series and make the work of both co-controlling mair motor 8, when low-voltage control circuit 12 is in normally off, motor switch 11 can control mair motor 8 completely and work, when low-voltage control circuit 12 is in disengaged position at dead bolt 24 and disconnects, mair motor 8 is de-energized and is in halted state, this design concept works as dead bolt 24 once depart from securing band lock body 22 can automatically stop mair motor 8, all-or-nothing piece 6 and slide block 3 are synchronously stopped, the displacement of slide block 3 can be measured very accurately, thus obtain the opening travel of safety belt lock catch accurately, low-voltage control circuit 12 generally adopts the parts such as direct supply 13 and normally closed relay 14, utilize dead bolt 24 and securing band lock body 22 to control the circuit between normally closed relay 14 and direct supply 13, indirect control normally closed relay 14 disconnects the high-tension circuit of mair motor 8, and mair motor 8 is stopped.
As shown in Figure 1 and Figure 2, have breach 18 in the middle part of worktable 1, breach 18 is positioned at immediately below all-or-nothing piece 6, weight 19 is provided with below worktable 1, weight 19 is positioned at immediately below breach 18, and weight 19 can be fixedly connected with the ribbon 23 of securing band, and the below of weight 19 is provided with cushion pad 20.Ribbon 23 is fixedly connected with weight 19 through breach 18, guide shaft 25 is provided with below worktable 1, ribbon 23 hangs down on guide shaft 25, after the ribbon 23 of securing band fixed by weight 19, the ribbon 23 of securing band is strained, makes dead bolt 24 produce certain pretightning force, deduct pretightning force by subsequent calculations and can obtain accurate opening force, compare and do not have the dead bolt 24 of pretension to decrease error, cushion pad 20 is for cushioning the bearing down of weight 19.The output shaft of mair motor 8 is also fixed with a handwheel 21, handwheel 21 and leading screw 9 lay respectively at outer end and the inner of mair motor 8.The effect of handwheel 21 is the initial positions by leading screw 9 adjusting slider 3, improves the accuracy that opening travel detects.During detection, securing band lock body 22 is fixed on holder 2, the dead bolt 24 of securing band is plugged on securing band lock body 22, all-or-nothing piece 6 is aimed at and securing band lock body 22 is released the button 7, slide block 3 holder 2 translation is relatively driven by driving mechanism 4, making all-or-nothing piece 6 push up pressure releases the button on 7, and then dead bolt 24 is departed from from securing band lock body 22, because the first end points of all-or-nothing piece 6 and load-sensing unit 5 are fixedly connected, thus load-sensing unit 5 can detect all-or-nothing piece 6 to release the button 7 acting force, thus calculate safety belt lock catch opening force.In addition, the feeding distance of slide block 3 is detected by distance measurement element 26, thus can calculate the opening travel of safety belt lock catch simultaneously.This device only needs all-or-nothing piece 6 primary feed just can calculate opening force and opening travel, substantially increases the efficiency of detection, and meanwhile, the all-or-nothing piece 6 of this device directly contacts with load-sensing unit 5, can improve the precision of detection.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (8)
1. the open detection device of an automobile safety belt buckle, described pick-up unit comprises a worktable (1), it is characterized in that, described worktable (1) is fixed with the holder (2) for fixing securing band lock body (22), described worktable (1) is provided with slide block (3), the driving mechanism (4) for driving the translation of this slide block (3) relatively described holder (2) is provided with between described worktable (1) and slide block (3), described slide block (3) is provided with load-sensing unit (5) and an all-or-nothing piece (6), first end points and the load-sensing unit (5) of described all-or-nothing piece (6) lean, second end points of described all-or-nothing piece (6) can touch release the button (7) on the securing band lock body (22) that is fixed on described holder (2) under the drive of slide block (3), described worktable (1) is also fixed with the distance measurement element (26) for detecting described slide block (3) displacement.
2. the open detection device of a kind of automobile safety belt buckle according to claim 1, it is characterized in that, described driving mechanism (4) comprises mair motor (8), leading screw (9) and nut (10), described mair motor (8) is fixed on described worktable (1), described nut (10) is fixed on described slide block (3), the output shaft of described leading screw (9) one end and mair motor (8) is connected, the other end of this leading screw (9) and nut (10) bolt, described worktable (1) is also provided with for the guidance set to slide block (3) horizontally-guided.
3. the open detection device of a kind of automobile safety belt buckle according to claim 2, it is characterized in that, described mair motor (8) Electricity Federation is connected to motor switch (11), described motor switch (11) is also in series with a normally closed low-voltage control circuit (12), described low-voltage control circuit (12) can electrically connect mutually with securing band lock body (22) and dead bolt (24), described low-voltage control circuit (12) can be made to disconnect when dead bolt (24) departs from securing band lock body (22).
4. the open detection device of a kind of automobile safety belt buckle according to Claims 2 or 3, it is characterized in that, described guidance set comprises and is all fixed on clutch shaft bearing seat (15) on worktable (1) and the second bearing seat (16), be fixed with the guide rod (17) that axis horizontal is arranged between described clutch shaft bearing seat (15) and the second bearing seat (16), described guide rod (17) is plugged on that slide block (3) is upper and both can relative sliding along guide rod (17) axis direction.
5. the open detection device of a kind of automobile safety belt buckle according to claim 4, is characterized in that, described load-sensing unit (5) is pressure transducer or dynamometer; Described distance measurement element (26) is slide calliper rule or displacement transducer.
6. the open detection device of a kind of automobile safety belt buckle according to claim 4, it is characterized in that, described guide rod (17) and described all-or-nothing piece (6) both axis parallel, and the direction of measurement of described distance measurement element (26) and the axis direction of described guide rod (17) parallel.
7. the open detection device of a kind of automobile safety belt buckle according to claim 4, it is characterized in that, described worktable (1) middle part has breach (18), described breach (18) is positioned at immediately below all-or-nothing piece (6), described worktable (1) below is provided with weight (19), described weight (19) is positioned at immediately below breach (18), described weight (19) can be fixedly connected with the ribbon of securing band (23), and the below of described weight (19) is provided with cushion pad (20).
8. the open detection device of a kind of automobile safety belt buckle according to claim 4, it is characterized in that, the output shaft of described mair motor (8) is also fixed with a handwheel (21), described handwheel (21) and leading screw (9) lay respectively at outer end and the inner of mair motor (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510262147.2A CN104964811A (en) | 2015-05-20 | 2015-05-20 | Unbuckling detection device of automobile safety belt buckle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510262147.2A CN104964811A (en) | 2015-05-20 | 2015-05-20 | Unbuckling detection device of automobile safety belt buckle |
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| CN104964811A true CN104964811A (en) | 2015-10-07 |
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| CN201510262147.2A Pending CN104964811A (en) | 2015-05-20 | 2015-05-20 | Unbuckling detection device of automobile safety belt buckle |
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| CN107433548A (en) * | 2017-08-04 | 2017-12-05 | 安徽英昊达精密设备有限公司 | A kind of automobile storage box positions assembly equipment |
| CN107843419A (en) * | 2017-11-08 | 2018-03-27 | 东莞创进精机有限公司 | One kind lock measurer for pulling force |
| CN108593178A (en) * | 2018-06-08 | 2018-09-28 | 上海工程技术大学 | A kind of hand-held mortise lock unlock force measuring device |
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