CN207585818U - A kind of belt force sensor - Google Patents
A kind of belt force sensor Download PDFInfo
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- CN207585818U CN207585818U CN201721866795.XU CN201721866795U CN207585818U CN 207585818 U CN207585818 U CN 207585818U CN 201721866795 U CN201721866795 U CN 201721866795U CN 207585818 U CN207585818 U CN 207585818U
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- stress
- rod
- force sensor
- locating piece
- main body
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Abstract
The utility model provides a kind of belt force sensor, and including main body, the main body is equipped with upper cover plate.The body top is equipped with groove, and the groove is used to install foil gauge；Parallel force rod and stress rotatable part are installed in the main body, the parallel stress boom end is equipped with location hole, the stress rotatable part is arranged in parallel stress boom end, the stress rotatable part includes built-in rod, elastic component and locating piece, elastic component is equipped in the built-in rod, the elastic component end is equipped with locating piece, and the locating piece is adapted with the location hole.The utility model is not needed on fixed wall in the car, so, it installs, is very easy to use.The utility model overall structure is simple, and operation is easy and is not easy to be influenced by space and external environment, and highly practical, tightness is good, meets vehicle impact testing requirement.
Description
Technical field
The utility model is related to the belt force biographies under a kind of belt force sensor, particularly vehicle impact testing
Sensor.
Background technology
In vehicle impact testing, the measurement of safety belt pulled out condition plays vital shadow to the performance judgment of automobile
It rings, but due to the particularity of safety belt structure, it is difficult to go to carry out accurately the pulling force situation of safety belt with existing force snesor
It measures.During vehicle impact testing, the data that belt force obtains can be used for differentiating " injury " possibility of dummy, close
Arrive the performance and safety of automobile.
It is special due to safety belt currently there are the miscellaneous pulling force sensor used for specific environment
Property, existing force snesor can not be measured accurately, and existing force snesor impact strength is inadequate, can not collided
(existing patent CN201110350440.6 tension transducer with resistance strain pieces) is used in experiment.Also, existing belt force
Sensor has that force rod dismounting is inconvenient and force rod cannot passively rotate and influence detection result.In detection safety belt
During pulling force, if two force rods are not pulled with safety belt and rotated, measurement accuracy will substantially reduce.
Invention content
Technical problem to be solved in the utility model is to improve deficiency of the prior art, provides a kind of installation, use
What is be quite convenient to is effective, simple in structure, and the small and high impact strength safety belt suitable for vehicle impact testing is drawn
Force snesor.
A kind of belt force sensor, including main body, the main body is equipped with upper cover plate, and the body top is additionally provided with recessed
Slot, for the groove for installing foil gauge, the body side is internally provided with annular buckling groove, be installed in the main body by
Power rotatable part, the stress rotatable part are clamped with annular buckling groove；
The stress rotatable part includes parallel force rod, built-in rod, elastic component and locating piece, the parallel force rod
End is equipped with location hole, i.e., described location hole is set on the circumferential surface on the outside of end.The built-in rod is set on parallel stress boom end
Inside is installed with elastic component in the built-in rod, and the built-in rod is equipped with the cavity accommodated for elastic component, when elastic component is forced
During contracting, in retraction cavity.The elastic component end is equipped with locating piece, and the locating piece is adapted with the location hole, described fixed
Position part is arranged in annular buckling groove.It is adapted and refers to, the bigger location hole of locating piece diameter is finally withstood on location hole, is exposed
Positioning bore portion is stuck in annular buckling groove.The parallel force rod is two.
What the mode that the belt force sensor measures harness tension was realized in：In the groove of elastic body
Place's patch foil gauge, the tension of safety belt is transmitted to elastic body by parallel force rod during test.Parallel force rod is rotatable to be subtracted
Influence caused by rubbing during small measurement, and small deformation occurs, foil gauge experiences deformation, and resistance change passes through Wheatstone bridge
Amplification, is then changed into measurable electric signal output.
Two parallel force rods of the belt force sensor are due to internal component collective effect so that sensor makes
Used time, parallel force rod ensure stressing conditions while being rotated with the pulling of safety belt, i.e. safety belt will not be because of drawing
And frictional force is generated, so as to improve measurement accuracy.
The parallel stress boom end is additionally provided with circular hole, and the circular hole is set on the outside of location hole, i.e., described circular hole is set on phase
Than location hole from force rod top surface closer to one at, the circular hole be more than location hole.It is fixed that the circular hole is used to import locating piece
In the hole of position.The elastic component is spring.The locating piece is steel ball.
The body side is equipped with the cover board for being connected with detection device, and the cover board includes inside cover plate and outboard cover
Plate.The body side is equipped with the tension disc for fixed test equipment.It is installed by the dismounting of two parallel force rods
Full band measures, easy to operate.
The tension disc provides the stretching resistance of sensor for fixed test equipment (referring in particular to electric wire cable), avoids touching
It hits experiment process center line detection device (especially electricity refers to cable) and pulls and come off.
Pullling when cover board and tension disc can effectively prevent the cable from replacing.Also, when cable damages, user can be with
It is rapid at any time to replace, so as to not influence the use of test equipment.
The main body is equipped with annular buckling groove with parallel force rod junction.
The belt force sensor is used for the measurement of belt force in crash tests, using with intensity Gao Ermi
Degree and small, the titanium alloy material of good mechanical property so that metal material has preferable strain effects in measurement process.
The belt force sensor is used for the measurement of belt force in crash tests, and all surfaces are all through overground
Light processing, to prevent damage dummy or bag material, while traction and frictional error is eliminated, protection is expensive on smooth surface
Crash tests dummy it is without damage.
The main body is provided with symmetrical through-hole.Through-hole is opened up for reducing quality itself, reduces effect of inertia.
Due to using the technology described above, the technique effect of the utility model is：The utility model does not need to be fixed on
On interior wall, install, is very easy to use.
The utility model overall structure is simple, small, and internal part stress is rotatable, can more fully be surveyed
Examination.Operation easily and be not easy to be influenced by space and external environment, locking it is firm, can compressive resistance it is big, have enough impact strengths,
It is highly practical, especially meet vehicle impact testing requirement.
The realization of spinfunction
Description of the drawings
Fig. 1 is the utility model belt force sensor schematic diagram；
Fig. 2 is the utility model belt force sensor explosive view；
Fig. 3 is the structure diagram of the utility model belt force sensor main body；
Fig. 4 is the vertical view of the utility model belt force sensor；
Fig. 5 is the structure diagram of the parallel force rod of the utility model belt force sensor；
Fig. 6 is the steel ball mounting means schematic diagram of the parallel stress of the utility model belt force sensor.
In figure：1- main bodys；The parallel force rods of 2-；3- inside cover plates；4- balustrade dechings；5- tension discs；6- grooves；7- leads to
Hole；8- upper cover plates；9- built-in rods；10- springs；11- steel balls；12- annular buckling grooves；13- location holes；14- circular holes；15- screw threads
Hole.
Specific embodiment
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
The utility model structure is as follows：
A kind of belt force sensor, the main body 1 are equipped with upper cover plate 8, and 1 top of main body is additionally provided with groove 6, institute
Groove 6 is stated for installing foil gauge, 1 side of main body is internally provided with annular buckling groove 12, be installed in the main body 1 by
Power rotatable part, the stress rotatable part are clamped with annular buckling groove 12；
The stress rotatable part includes parallel force rod 2, built-in rod 9, elastic component and locating piece, the parallel stress
2 end of bar is equipped with location hole 13, and the location hole 13 is set on the circumferential surface on the outside of end.The built-in rod 9 is set on parallel force rod 2
The inside of end, the built-in rod 9 is interior to be equipped with elastic component, and the built-in rod 9 is equipped with the cavity accommodated for elastic component, works as elastic component
During forced compression, in retraction cavity.The elastic component end is equipped with locating piece, and the locating piece is fitted with 13 phase of location hole
Match, the locating piece 13 is arranged in annular buckling groove 12.
2 end of parallel force rod is additionally provided with circular hole 14, and the circular hole 14 is set on and is pushed up compared to location hole 13 from force rod 2
Face closer to one at, the circular hole 14 be more than location hole 13.The circular hole 14 is used to import locating piece in location hole 13.
The elastic component is spring 10.The locating piece is steel ball 11.
1 side of main body is equipped with the cover board for being connected with detection device, and the cover board includes inside cover plate 3 and outside
Cover board 4.
1 side panel of main body is equipped with the tension disc 5 for fixed test equipment.
Institute's main body 1 is provided with symmetrical through-hole 7.Through-hole is opened up for reducing quality itself, reduces effect of inertia.
The main body 1 is equipped with annular buckling groove 12 with parallel 2 junction of force rod.
The belt force sensor of the utility model is installed by following step：
1st, by the weldering of chip, other components and connecting wire on circuit boards, circuit board is fixed on 1 bottom of main body, strain
Piece is affixed at the two of elastic body 1 at groove 6, Parallel Symmetric, and connection cables.
2nd, it is fixed by the screw of upper cover plate 8, circuit board, foil gauge and cable is covered inside sensor main body 1.
3rd, cable passes through through-hole 7, inside cover plate 3, balustrade deching 4 and the tension disc 5 in main body and extraneous detection device
Connection.
4th, the tension disc 5 provides the stretching resistance of sensor for fixed cable, avoids the cable during impact test
It is come off by pullling.
5th, have around the same end of parallel force rod 2 location hole 13 and 14,3 hole sizes of circular hole it is identical respectively with
3 steel balls 11 coordinate, which is slightly less than steel ball, another circular hole 14 is more slightly larger than 11 diameter of steel ball, spring 10 and steel ball
11, which are each passed through circular hole at this, is pressed into built-in rod 9, then rotates 120 degree, is pressed into second steel ball and spring 10, then rotate 120
Degree is pressed into third steel ball and spring 10, finally by internal rod 9 toward sinciput, until steel ball 11 is stuck at three holes.
6th, 9 tail portion of built-in rod is provided with threaded hole 15 and facilitates the stretching of component that spring 10 and steel ball 11 is made to reach designated position,
Facilitate installation and debugging, after installing, screw is back-outed.
7th, after safety belt is placed, then parallel force rod 2 is inserted into main body 1, steel ball 11 is stuck in the annular buckling groove 12 of main body 1
Afterwards, harness tension test is then carried out.
More than installation steps can make the appropriate adjustments according to practical operation.
The rotation mode of the parallel force rod 2 of the belt force sensor is achieved in that three steel balls and three
Root spring 10 is placed in built-in rod 9, and built-in rod 9 is filled in the tail portion of parallel force rod 2, and three steel balls are acted on by spring force
And withstand on the location hole 13 of force rod, and some is protruded, parallel force rod 2 is inserted into main body 1 after installation is complete, and at this time three
Steel ball card is in the annular buckling groove 12 of main body 1, so as to when measuring, parallel force rod 2 can with the pulling of safety belt and
Rotation.Because its circumferential direction is without constraint, can rotate, and axially there is the restraining force of fixed size, make its fixed, it is parallel by
Power bar 2 ensures stressing conditions while being rotated with the pulling of safety belt, i.e. safety belt will not generate friction due to drawing
Power, so as to improve measurement accuracy.
It is axial then can not be moved easily since steel ball 11 is stuck in the annular buckling groove 12 of main body 1, it needs sufficiently large
External pull can just be pulled out.
Explanation only is made that using preferable example with regard to the utility model above, but cannot be solved to be the limit to claim
System, the structure of the utility model can have other variations, be not limited to above structure.In short, all independence in the utility model
The various change made in scope of the claims is within the protection scope of the present utility model.
Claims (7)
1. a kind of belt force sensor, including main body, the main body is equipped with upper cover plate, and the body top is additionally provided with recessed
Slot, the groove are used to install foil gauge, which is characterized in that the body side is internally provided with annular buckling groove, the master
It is installed with stress rotatable part in vivo, the stress rotatable part is clamped with annular buckling groove；
The stress rotatable part includes parallel force rod, built-in rod, elastic component and locating piece, the parallel stress boom end
Equipped with location hole, the built-in rod is set on the inside of parallel stress boom end, and the built-in rod is installed with elastic component, the elasticity
Part end is equipped with locating piece, and the locating piece is adapted with the location hole, and the locating piece is arranged in annular buckling groove.
2. a kind of belt force sensor as described in claim 1, which is characterized in that the parallel stress boom end is also set
There is circular hole, the circular hole is set on the outside of location hole, and the circular hole is more than location hole.
3. a kind of belt force sensor as described in claim 1, which is characterized in that the body side be equipped with for
The cover board that detection device is connected, the cover board include inside cover plate and balustrade deching.
4. a kind of belt force sensor as described in claim 1, which is characterized in that the body side is equipped with for solid
The tension disc of regular inspection measurement equipment.
5. a kind of belt force sensor as described in claim 1, which is characterized in that the main body is provided with symmetrical logical
Hole.
6. a kind of belt force sensor as claimed in claim 1 or 2, which is characterized in that the elastic component is spring.
7. a kind of belt force sensor as claimed in claim 1 or 2, which is characterized in that the locating piece is steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721866795.XU CN207585818U (en) | 2017-12-27 | 2017-12-27 | A kind of belt force sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721866795.XU CN207585818U (en) | 2017-12-27 | 2017-12-27 | A kind of belt force sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207585818U true CN207585818U (en) | 2018-07-06 |
Family
ID=62740498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721866795.XU Active CN207585818U (en) | 2017-12-27 | 2017-12-27 | A kind of belt force sensor |
Country Status (1)
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|---|---|
| CN (1) | CN207585818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007628A (en) * | 2017-12-27 | 2018-05-08 | 杭州集普科技有限公司 | A kind of belt force sensor |
-
2017
- 2017-12-27 CN CN201721866795.XU patent/CN207585818U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007628A (en) * | 2017-12-27 | 2018-05-08 | 杭州集普科技有限公司 | A kind of belt force sensor |
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