CN200975936Y

CN200975936Y - Falling test device

Info

Publication number: CN200975936Y
Application number: CNU200620153885XU
Authority: CN
Inventors: 翁德平
Original assignee: Mitac Computer Shunde Ltd
Current assignee: Mitac Computer Shunde Ltd; Shunda Computer Factory Co Ltd
Priority date: 2006-11-28
Filing date: 2006-11-28
Publication date: 2007-11-14
Anticipated expiration: 2016-11-28

Abstract

The utility model discloses a drop testing device, which is composed of a base, a support fixed on the base and an interlinkage which is arranged on the support. Wherein, the interlinkage is composed of an electric motor, a first gear which is connected with the electric motor by the electric property, a second gear that is occluded with the first gear and a turntable which is positioned with the same axis with the second gear; in addition, the utility model is also composed of a pair of counter which can count the testing frequency. And a sling is positioned on the turntable by way of wire wrapping which can be used to hang the measured object. During the process of testing, the first gear is driven to rotate by the electric motor and thus spurs the second gear and the turntable, meanwhile drives the sling to lift the measured object. When the first gear rotates to the position that is no gear, the second gear will return to the original state under the function of the rotating spring which is arranged on the center shaft of the second gear, and thus the measured object will be put to fall to the ground and the drop test of the simulating object is realized. By using the utility model, the problem of a not high accuracy rate brought by the drop test of the simulating object by human hands and the problem that the measured object is easily destroyed will be solved, so the utility model is valuable in use.

Description

Drop test device

Technical field

The utility model relates to a kind of testing tool, particularly carries out the instrument of emulation drop test at object.

Background technology

At present, at MP3 and mobile product, because client's the testing requirement and the test request of IT industry circle, whether the test that all must carry out series before it dispatches from the factory is to verify its performance quality quality.Wherein, the drop test of product is one of test event, and we adopt usually and artificially product are placed certain altitude now, and staff unclamps the purpose that it is fallen and arrive test then.Though the mode of this above-mentioned drop test is the purpose that can reach test to a certain extent, but carry out under the artificial mode under this kind mode, be very easily to cause sum of errors that test product is caused damage, and also need when measuring repeatedly artificially it to be carried out number of times calculating and causes leakage easily, and the tester also causes the waste on the manpower for participating in the overall process in the whole test process.

Summary of the invention

In view of the above problems, fundamental purpose of the present utility model be to provide a kind of can mechanized operation, need not manpower and realize, and the efficient height, the drop test device that test accuracy is high.

To achieve these goals, the utility model has adopted following technical proposals: this drop test device comprises that a base, is fixedly set in support and on the base and is installed in serial verb construction on the support.Wherein, described serial verb construction is to be installed on the support and away from an end of base, it comprises motor, be electrically connected at motor first gear and with first gear be engaged shape second gear and with the coaxial rotating disk that is installed in of second gear; The axis place of described second gear is equiped with a rotating spring, so that second gear is back to initial position; And on described rotating disk, be wound with a suspention tested article used hoist cable, this hoist cable one end is for being wound in rotating disk, the other end then pass guide ring and when testing and tested article interconnect.In addition, this serial verb construction comprises that also one is assemblied in counter, one first switch and the second switch on the base; Described counter is used for the action of falling of tested article is counted, and the one end is connected in power supply by first switch, and the other end then is connected in described motor, is moved to offer motor one operating voltage; Described second switch is the one stroke switch, and it is connected in described counter.

By said structure, and when described first gear turns to the travel switch position and strikes the trip switch, the electric shock of the trip switch action, thus the circuit switching makes described rolling counters forward once; Under this mode, can avoid the people is the drop number of noting down article.

In addition, also be equiped with a guide frame between the two ends of described support, wherein, this described guide frame outwards stretches for being vertical with described support, and is parallel to base; Described guide frame one end be installed with a guide ring at its other end place, and described hoist cable is for passing wherein for being fixedly arranged on the support.

In conjunction with said structure, thereby make when tested article are tested under the suspention of described hoist cable, guaranteed tested article not deviation position and real simulation article fall state, thereby also guaranteed the precision of test.

Description of drawings

Fig. 1 is the configuration diagram of drop test device described in the utility model;

Fig. 2 falls the control principle synoptic diagram for drop test device described in the utility model.

Embodiment

Come the utility model is elaborated below in conjunction with drawings and the specific embodiments.

Shown in Fig. 1, it is the configuration diagram of drop test device described in the utility model.Described drop test device comprises that a base 60, is fixedly set in support 61 and on the base 60 and is installed in serial verb construction 5 on the support 61.Wherein, between the two ends of described support 61, be equiped with a guide frame 611, this described guide frame 611 outwards stretches for being vertical with described support 61, it is parallel with serial verb construction 5 with described base 60, and the length of this guide frame 611 equates with described serial verb construction 5 width, can make by this setting to guarantee that when testing testee 70 falls for the angle with vertical ground.Described guide frame 611 1 ends then are installed with a guide ring 612 for being fixedly arranged on the support 61 at its other end place.

In addition, please refer to shown in Fig. 1 and Fig. 2, described serial verb construction 5 is for being installed on the described support and away from an end place of base 60, it comprises a motor 40, one counter 30, one first switch 20, one second switch 22, one is electrically connected at first gear 50 and one second gear 51 of motor 40, one with second gear, the 51 coaxial rotating disks that are installed in 52, in addition, and on this described rotating disk 52, go back winding one hoist cable 521, and these hoist cable 521 1 ends are for being wound on the rotating disk 52, the other end then passes described guide ring 612 and links to each other with tested article 7070, is also guaranteed not deviation position and have influence on the precision of test of hoist cable 521 in the test process.In addition, the end that this described hoist cable 521 links to each other with tested article 70 can fix tested article 70 by the more intense glue of viscosity, and also can entangle tested article 70 by locating that endways hanging sleeve is set, and promptly finishes the drop test of tested article 70.

Wherein, described second gear 51 and first gear 50 are engaged shape, thereby can drive second gear 51 when the gear 50 of winning is rotated under the driving of motor 40 rotates, in addition, described rotating disk 52 is for being coaxial being installed in second gear 51, therefore, when second gear 51 rotates, also can drive this rotating disk 52 simultaneously and rotate, promptly make described hoist cable 521 drive tested article 70.Described first gear 50 is a partial gear, in addition, be equiped with a rotating spring (not shown) at the axis place of described second gear 51, and when described first gear 50 in motor 40 driven in rotation during to anodontia position, described second gear 51 can't be returned to original state rapidly under the effect of the next meeting of situation at rotating spring of interlock, thereby has realized falling of tested article 70.

Shown in Fig. 2, described counter 30 is for being assemblied on the base 60, and it is used for the number of times record is carried out in the action of falling of tested article 70, and the one end is connected in power supply 10 by first switch 20, and the other end is then for being connected in described motor 40 and supplying with motor 40 1 working powers; In addition, in this described counter 30, can preestablish the inferior numerical value that needs test, and when the testing time of being noted down when actual test equated with this default value, then this counter 30 just can cut off and being connected of described motor 40 automatically, thereby makes motor 40 quit work to represent this end of test (EOT).Described first switch 20 is a test beginning switch, when it is pressed, and then test beginning, after being communicated with power supply 10, described counter 30 and motor 40 are started working.Described second switch 22 is the one stroke switch, the trip switch is one according to the travel position of moving component and the electrical equipment of commutation circuit, it links to each other with described counter 30, for in the perform region that is assemblied in first gear 50 and when first gear 50 rotates, can touch the position of this second switch 22, promptly when moving once and reach these second switch 22 positions, first gear, 50 revolutions also clash into, move and the switching of realization circuit the contact of this second switch 22, its meeting moment closure, thereby connected counter 30 just can be counted once, promptly realizes a counting to tested article 70 drop numbers.

As shown in fig. 1, during test, place the hoist cable 521 on the rotating disk 52 that tested article 70 are fixed, thereby make described counter 30 and motor 40 start working by the closed energized 10 that begins switch then by winding.Under above-mentioned condition, described first gear 50 begins to turn clockwise under the driving of this motor 40, promptly and also drive second gear 51 with its interlock, and this second gear 51 is for to be rotated counterclockwise, simultaneously, 52 rotations of described rotating disk, promptly and described hoist cable 521 to be object of reference with tested article 70 and with ground do upwards to promote.At this moment, the rotation of first gear 50 also can strike second switch 22, and make this described second switch 22 the contact action and moment closure, promptly and the counter 30 that is connected with this second switch 22 adds " 1 ".

Subsequently, during when 50 rotations of first gear and to its no toothed portion, because first gear 50 and the interlock again of second gear, second gear 51 just can be in the effect turning down of the rotating spring (not shown) that is arranged at its axis to its initial conditions, tested article 70 are put go back to the original place, promptly realize falling of article, finish drop test one time.Simultaneously, the driving of first gear, 50 motors 40 continues rotation down, and first gear 50 of second gear 51 and rotation have toothed portion to contact the time again can be again engaged, promptly and article 70 are raised under the drive of above-mentioned rotating disk 52, second gear 51 and first gear 50 once more, and when first gear 50 rotates to no toothed portion, this article 70 as above-mentioned falling again.

Repeat above-mentioned action repeatedly, and when the testing time of being noted down in the described counter 30 when testing time in being pre-set in counter 30 equates, counter 30 just can cut off and being connected of described motor 40, this described motor 40 quits work under the situation of no working power, thereby also make first,

second gear

50 and 51 stop operating, promptly and rotating disk 52 stops operating, end of test (EOT).

Claims

1. a drop test device is characterized in that, comprises

One base;

One support, it is for being fixedly set on the base, and is provided with a perpendicular guide frame between the two ends of described support; And

One serial verb construction, it is for being installed on the support, and it comprises a motor; One is electrically connected at first gear of motor; Second gear of the one and first mutual interlock of gear; One with the coaxial rotating disk that is installed in of second gear; In addition, also comprise one first switch; One second switch and a counter; And this counter is for being assemblied on the base, and it links to each other with power supply by first switch, and also is connected with second switch.

2. drop test device as claimed in claim 1 is characterized in that, described guide frame one end is installed with a guide ring for being installed on the support in the end of its other end.

3. drop test device as claimed in claim 1 is characterized in that, is arranged with a hoist cable on the described rotating disk.

4. drop test device as claimed in claim 1 is characterized in that, described first gear is one to have the gear of a part of tooth.

5. drop test device as claimed in claim 1 is characterized in that, the axis place of described second gear is equiped with a rotating spring.

6. drop test device as claimed in claim 1 is characterized in that, described second switch is the one stroke switch.