CN202119610U

CN202119610U - Falling off impact test device

Info

Publication number: CN202119610U
Application number: CN2011202073070U
Authority: CN
Inventors: 孙金伟; 徐诚; 谭春申
Original assignee: Yanfeng KSS Shanghai Automotive Safety Systems Co Ltd
Current assignee: Yanfeng KSS Shanghai Automotive Safety Systems Co Ltd
Priority date: 2011-06-17
Filing date: 2011-06-17
Publication date: 2012-01-18
Anticipated expiration: 2021-06-17

Abstract

The utility model relates to the field of mechanical technology, particularly to a falling off impact test device. The device is characterized in that at least two guide rail sets are vertically arranged at the front side of three crossbeams of a framework, each guide rail is arranged in such a manner that a groove-shaped pulley device is sleeved on each crossbeam, the front side of each groove-shaped pulley device is connected with a fixed base plate, and a left guide rail and a right guide rail vertically parallel with the left guide rail are fixed at front of the three fixed base plates; a top beam is suspended correspondingly over the framework, an electric motor is arranged at a position corresponding to each guide rail set on the top beam, the electric motor is connected with the top of a releasing mechanism via a steel wire rope, a slide block assembly is hitched below the releasing mechanism, vertical corresponding positions of two sides of the back of the releasing mechanism and of the two sides of the back of the slide block assembly are respectively provided with a semiclosed bearing, and the semiclosed bearings are respectively sleeved on the left guide rail and the right guide rail. Compared with the prior art, the falling off impact test device is suitable for bumping tests of multi-cavity air bag structure modules, is stable in structure, good in test repeatability, safe in operation, etc.

Description

The dropping shock testing equipment

Technical field

The utility model relates to field of mechanical technique, specifically a kind of dropping shock testing equipment.

Background technology

Fall tower test and be meant test sample is placed on the horizontal stiffness test platform, mass is risen to certain altitude, discharge then and do the movement of falling object, thus the impact test exemplar.Along with the continuous development of auto industry, fall the tower test and extensively applied to each parts on the automobile, such as air bag, securing band, each electronic product in the door-plate interior trim, automobile, the foam-filled material in the bumper etc.

In recent years, relevant automobile passive safety system product was more and more expressed higher security performance requirement, so increasing air bag requires to fall the tower test.Air bag falls the tower test and is meant the moment that is filled to its maximum height when air bag, and mass is with the speed bump air bag of regulation.And the time that is full of of air bag often just between a few tens of milliseconds, this just means will accomplish in the extremely short time that air bag is full of and these two requirements up to standard of mass speed.Simultaneously, employedly fall falling speed and position that the tower testing equipment should make the mass that is discharged accurately and stable.

Traditional tower majority that falls is a single track; The impact test of single air bag be can only be applicable to,, two even the perhaps different simultaneously impact airbag exemplars constantly of a plurality of mass promptly required for the impact test of a plurality of air bags or air cavity; Traditional fall tower structure and just can not satisfy the requirement of test; And common single-rail falls tower because it is simple in structure, and it is unstable to have caused mass to be released the back falling speed, thereby makes the repeated relatively poor of test; Can't satisfy the requirement of cae analysis, simultaneously narrow application range.And for " dragline type " falls tower, because its mass leans on the steel wire tractive to rise, so when personnel operation, have certain potential safety hazard.

Summary of the invention

The purpose of the utility model is the deficiency that overcomes prior art, adopts the design of many set of rails to carry out many group tests simultaneously, improves test efficiency, and in addition, the change when adopting Guide Rail Design on the fit structure is to realize its stability, and the speed that realizes simultaneously can be surveyed.

For realizing above-mentioned purpose; Design a kind of dropping shock testing equipment; Comprise grid-like back timber frame, fixed base plate, releasing mechanism, slide block assembly, horizontal level display device, height display device, limit switch, controller, it is characterized in that: about two root posts adopt go up in following three crossbeams connect into framework; The front side of three crossbeams vertically is provided with at least two group set of rails; Described set of rails is a sheathed flute profile pulley gear on every crossbeam; The front side of each flute profile pulley gear connects the back side of a fixed base plate, and the guide rail of two parallel longitudinals constituted about the left and right sides, front of following three fixed base plates was fixed respectively again in going up; The place, top of associated frame members also is hung with back timber; The position of corresponding every group of set of rails is provided with an electro-motor on the back timber; Electro-motor adopts wire rope to connect the top of a releasing mechanism; The releasing mechanism below articulates the slide block assembly, and a metal grid screen is established in the left side of slide block assembly, and the vertical corresponding position in both sides, the releasing mechanism back side and both sides, the slide block assembly back side is respectively equipped with semiclosed bearing; The semi-enclosed bearing of the releasing mechanism and the left and right sides, the slide block assembly back side be socketed in respectively fixed base plate about on two guide rails; Set of rails both sides between base cross members and intermediate transverse girder are respectively equipped with optoelectronic switch and height display device; The both sides that are positioned at each set of rails on the intermediate transverse girder are respectively equipped with limit switch; A column that is positioned at the intermediate transverse girder place is provided with the horizontal level display device.

Described flute profile pulley gear adopts the trough plate that is connected the formed front openings of upper and lower plate one side by two ends about the base plate of back respectively; The notch of trough plate front side is behind the nested firmly crossbeam of the rear side of crossbeam; The front end of the upper and lower plate of trough plate is fixed on the back side of fixed base plate again; The crossbeam top right ends that is positioned at trough plate is also established a level respectively to the roller that rolls, and the roller shaft front and back end of roller is separately fixed on the back base plate of the back side and trough plate of fixed base plate again.

Described releasing mechanism lower end articulates the slide block assembly, and wherein, releasing mechanism adopts the housing of a rectangle, and the back side right ends of housing is respectively equipped with semi-enclosed bearing, is made as W shape groove in the middle of the housing bottom, and junction is vertically to fluting in the middle of the W shape groove; The left side level is to establishing a stub in the housing, and stub is provided with and powers up trigger mechanism, and the right-hand member of stub connects interlock hook left end, the interlock hook be coupling on the housing rear wall and be positioned at W shape groove above; The housing outer bottom is positioned at the right side of W shape groove and establishes a connection piece; Horizontal pin-and-hole is established on the nearly top of web member; Be positioned under the housing on web member right side the connection level to the key seat top of pair pin; The pin of secondary pin is established in the left side of key seat, and the left end pin joint of the pin of secondary pin is gone in the horizontal pin-and-hole of web member, and secondary pin is provided with trigger mechanism; Described interlock hook comprises triggering hook, hook; Described triggering hook adopt have angle about the triggering hook of approximate " 7 " font of constituting of two arms; The left arm top of triggering hook is provided with the pothook that bends inwards; The right arm that triggers hook is a straight-arm, and the angled end that triggers hook is coupling on inner walls, and described hook is that the approximate figure of three structure that crotch portion is established in the knuckle lower end is established in the upper end; Hook be coupling in inner walls and be positioned at trigger hook below, and the knuckle of hook upper end with trigger the inwardly mutual clamping of pothook of folding of hook; Described slide block assembly is for adopting a rectangular aluminum sheet as mass; Four jiaos of symmetries of the trailing flank of rectangular aluminum sheet are established four semi-enclosed bearings; The centre position of the front side of rectangular aluminum sheet connects the place, nearly top of a guide pole, and fixing link bottom, the top of guide pole constitutes; The bottom left end of web member is connected the right side at the nearly top of guide pole; The link of slide block assembly embeds in the groove in the middle of the W shape trench bottom of releasing mechanism bottom, in the releasing mechanism crotch portion of hook bottom pass junction in the middle of the W shape groove set vertically to fluting and hook link; The left side of described slide block assembly is established a metal grid screen and is established a metal grid screen for the left side of rectangular aluminum sheet in the slide block assembly.

The leading flank of following three crossbeams also is respectively equipped with level trough in going up, and the back side of the fixed base plate at corresponding level trough place is provided with pin, in the level trough of pin stemple.

The leading flank of following three crossbeams is also laid some crossbeam pilot holes in going up, and also is provided with at least two base plate pilot holes on the fixed base plate, and crossbeam pilot hole and base plate pilot hole are at same horizontal level, and the base plate pilot hole adopts screw retention to be connected with the crossbeam pilot hole.

The below of framework is provided with places to be measured testing table.

Some frameworks are arranged in array, and the top of the set of rails that framework connected also vertically connects the grid-like upper frame, and four jiaos of the grid-like upper frame are adopted the support column support and connection.

The also vertical respectively crane beam that connects of two root posts about framework.

Be respectively equipped with extension rod between two guide poles, be adsorbed with permanent magnet between adjacent two extension rods.

Controller adopts circuit to connect the signal end that powers up trigger mechanism of releasing mechanism and the signal end of trigger mechanism respectively, and optoelectronic switch also is equipped with data acquisition unit, and electro-motor is equipped with telepilot.

The utility model is compared with prior art, and it is strong to have structural stability, and test repetition performance is good, and advantage such as handling safety; Simultaneously, applicable to the impact test of the airbag structure module of single chamber, two chambeies, three chambeies even multi-cavity, the design's structure applications scope is more extensive.

Description of drawings

Fig. 1 looks synoptic diagram for the master who is arranged in a framework in the dropping shock testing equipment that array forms by some frameworks among the utility model embodiment.

The partial right side view of Fig. 2 when not placing releasing mechanism and sliding among the utility model embodiment into total piece.

Fig. 3 a is fixed base plate among Fig. 2, crossbeam, flute profile pulley gear three's a connection synoptic diagram.

Fig. 3 b is the amplification right view of Fig. 3 a.

Fig. 3 c is the amplification plan view of Fig. 3 a.

Fig. 4 is that releasing mechanism is connected back perspective structure figure with the slide block assembly in the utility model with track.

Fig. 5 connects the structural representation of guide pole in two groups of slide block assemblies for adopting extension rod and magnet in the utility model.

Fig. 6 is for being connected with the structural representation of the secondary web member of selling in the utility model.

Fig. 7 is the structural representation of stub in the utility model.

Fig. 8 is the synoptic diagram of metal grid screen in the utility model.

Embodiment

Combine accompanying drawing that the utility model is done explanation further at present.

Referring to Fig. 1, about adopt between two root posts 1 three crossbeams 2 to connect into framed structure, establishing three set of rails with each framework in this example is example.

Referring to Fig. 3 a～3c; Each set of rails adopts the flute profile pulley gear to combine the combination of fixed base plate and guide rail to be connected on the framework in the utility model; And all be provided with flute profile pulley gear and fixed base plate on following three crossbeams on each set of rails connects; So that firm in vertical direction connection lengthwise is to the guide rail that is provided with; Concrete structure is: described flute profile pulley gear 31 adopts the trough plate 26 that is connected the formed front openings of upper and lower plate one side by two ends about the base plate of back respectively; The notch of trough plate 26 front sides is behind the nested firmly crossbeam of the rear side of crossbeam 2, and the front end of the upper and lower plates of trough plate 26 is fixed on the back side of fixed base plate 3 again, and crossbeam 2 tops are positioned at the right ends of trough plate and also establish a level respectively to the roller 29 that rolls; The roller shaft front and back end of roller 29 be separately fixed at again on the back base plate of back and trough plate 26 of fixed base plate 3 constitute; Then, fixing respectively again three different parts longitudinally that two parallel guide rails 4 vertically are set in the left and right sides of fixed base plate 3 fronts of every crossbeam corresponding position constitute a set of rails.

The leading flank of following three crossbeams 2 also is provided with level trough 30 in going up, and the back side of the fixed base plate 3 at corresponding level trough place is provided with pin 32, in the level trough 30 of pin 32 stemples.The leading flank of crossbeam 2 is also laid some crossbeam pilot holes 33, also is provided with at least two base plate pilot holes 34 on the fixed base plate 3, and crossbeam pilot hole 33 and base plate pilot hole are at same horizontal level, and base plate pilot hole 34 adopts screw retention to be connected with crossbeam pilot hole 33.Each set of rails can be through the flute profile pulley gear that fixed base plate connected like this, hydrous water rise as high as the banks 30 with pin 32, make the fixed base plate that is provided with guide rail on crossbeam, do left and right horizontal and move; Thereby regulate two level intervals between the set of rails; Be screwed connection again, after spacing has been regulated, also can satisfy the requirement for height of testing through regulating the height that a bottom crossbeam is fixed on the column; Be set at 200mm to 1500mm in its this example of adjustable extent, degree of regulation is 2mm.

Referring to Fig. 1, Fig. 4, the set of rails both sides between base cross members and intermediate transverse girder are respectively equipped with optoelectronic switch 17 and height display device 19; The both sides that are positioned at each set of rails on the intermediate transverse girder 2 are respectively equipped with limit switch 35, thereby limit set of rails position in the horizontal direction; A column 1 that is positioned at intermediate transverse girder 2 places is provided with horizontal level display device 18.

Referring to Fig. 4, releasing mechanism adopts the housing 12 of a rectangle, and the left and right sides, the back side of housing 12 is respectively equipped with semi-enclosed bearing 8; Be made as W shape groove in the middle of housing 12 bottoms, junction is vertically to fluting in the middle of the W shape groove, and the left side level is to establishing a stub 13 in the housing 12; Stub 13 is provided with and powers up trigger mechanism; The right-hand member of stub 13 connects interlock hook left end, the interlock hook be coupling on the housing rear wall and be positioned at W shape groove above, housing 12 outer bottoms are positioned at the right side of W shape groove and establish a connection piece 14; Horizontal pin-and-hole is established on the nearly top of web member; 12 times connection levels of the housing on web member 14 right sides are to key seat 15 tops of pair pin, and the pin 16 of secondary pin is established in the left side of key seat 15, and the left end pin joint of the pin 16 of secondary pin is gone in the horizontal pin-and-hole of web member 14; Described interlock hook comprises the triggering hook 22 that is positioned at the upper left side, the hook 23 that is positioned at the lower right side; Described triggering hook 22 adopt have angle about the triggering hook of " 7 " font of constituting of two arms; The left arm top of triggering hook 22 is provided with the grab 24 that bends inwards; The right arm that triggers hook 22 is a straight-arm, triggers hook 22 angled end and is coupling on inner walls; It is the approximate figure of three structure of crotch 25 for the knuckle lower end that described hook 23 adopts the upper end, hook 23 be coupling in inner walls and be positioned at trigger hook 22 below, and the knuckle of linking up with 23 upper ends with trigger the grab 24 mutual clampings that hook is inwardly rolled over.

Slide block assembly 7 is for adopting a rectangular aluminum sheet 9 as mass; Four jiaos of symmetries of the trailing flank of rectangular aluminum sheet 9 are established four semi-enclosed bearings 8; The centre position of the front side of rectangular aluminum sheet 9 connects the place, nearly top of a guide pole 10, and a fixing link 11 bottoms, the top of guide pole 10 constitute.

Referring to Fig. 1; The place, top of associated frame members also is hung with back timber 5; The position of corresponding every group of set of rails is provided with an electro-motor 6 on the back timber 5; Electro-motor 6 adopts wire rope to connect the top of a releasing mechanism, and the releasing mechanism below articulates slide block assembly 7, promptly is connected the right side at guide pole 10 nearly tops through the bottom left end with web member 14; The link 11 of slide block assembly 7 embeds in the groove in the middle of the W shape trench bottom of releasing mechanisms bottom, in the releasing mechanism crotch portion 25 of hook 23 bottoms pass junction in the middle of the W shape groove set vertically to fluting and hook link 11 and realize connecting.

Referring to Fig. 4, Fig. 8; A metal grid screen 21 is also established in the left side of the rectangular aluminum sheet 9 in the slide block assembly 7; Metal grid screen 21 and the optoelectronic switch 17 set up have like this been formed speed measuring device; Fall in the tower structure whole, the speed when being used for measuring the slide block assembly and falling as the rectangular aluminum sheet 9 of mass reaches and satisfies the desired impact velocity of test.Wherein, metal grid screen 21 can be processed with hard aluminium alloy, machining precision 0.015mm; It is the optoelectronic switch of Banner D12SN6FVY that optoelectronic switch can adopt model.

The vertical correspondence position in both sides, the releasing mechanism back side and both sides, slide block assembly 7 back side is respectively equipped with semiclosed bearing 8; Semi-enclosed bearing 8 be socketed in respectively fixed base plate 3 about on two guide rails 4; Can guarantee like this on guide rail, to slide arbitrarily; Its Stability Analysis of Structures, the slip on guide rail can not produce left-right deviation, has guaranteed the stability and repetition performance of its speed on guide rail.The slide block assembly is in the guide rail sliding process; Metal grid screen 21 on the slide block assembly can pass through data acquisition unit, as collect the pulse width signal of this metal grid screen through optoelectronic switch through KT K3700-S.3 data acquisition unit through after the optoelectronic switch 17; Because the length of metal grid screen is known; According to speed formula v=s/t, thereby calculate the speed that mass falls, the i.e. speed of mass impact airbag module.

The below of framework is provided with places to be measured testing table 36, and this testing table adopts rigidity test table.

Referring to Fig. 2, some frameworks are arranged in array, and the top of the set of rails that framework connected also vertically connects grid-like upper frame 37, and four jiaos of the grid-like upper frame are adopted support column 38 support and connection, can realize many test assignments like this.The also vertical respectively crane beam 39 that connects of two root posts 1 about framework.

During test, adopt telepilot to regulate that electro-motor makes the rope traction releasing mechanism and the slide block assembly that articulated rises to the height of appointment along set of rails, this height can show through height display device 19; When reaching specified altitude assignment, after the releasing mechanism transmission was released order, controller provided the pin 16 withdrawal disengagement web members 14 of trigger pip elder generation of trigger mechanism of secondary pin with the pair pin earlier through controller; Slide block assembly 7 still 23 is hooked by hook, keeps it highly constant on guide rail, and then give stub power up signal of trigger mechanism; Stub is withdrawn, and after triggering hook 22 was driven withdrawal left by stub 13, the straight-arm promotion figure of three of triggering hook was linked up with along axle and is rotated counterclockwise; Link up with 23 crotch portion 25 then and throw off the slide block assemblies, with the slide block assembly of mass along the guide rail landing, at it along in the process of guide rail landing; During through speed measuring device, data acquisition unit is triggered, the signal of recording light electric switch; Calculate the speed of slide block, referring to Fig. 4, Fig. 6, Fig. 7.

Referring to Fig. 5; In the dropping shock testing equipment for two guide rails and many guide rails; Establish respectively between 40, two adjacent extension rods 40 of extension rod in the sides adjacent of adjacent two guide poles 10 and to adsorb with permanent magnet 41 again, thereby play two adjacent rectangle aluminium blocks 9; Be the purpose that mass adsorbs, guarantee that the slide block assembly that is provided with mass falls to clashing into air bag module along guide rail simultaneously.

Claims

1. dropping shock testing equipment; Comprise grid-like back timber frame, fixed base plate, releasing mechanism, slide block assembly, horizontal level display device, height display device, limit switch, controller, it is characterized in that: about in two root posts (1) employing in following three crossbeams (2) connect into framework; The front side of three crossbeams (2) vertically is provided with at least two group set of rails; Described set of rails is a sheathed flute profile pulley gear (31) on every crossbeam; The front side of each flute profile pulley gear (31) connects the back side of a fixed base plate (3), and the guide rail (4) of two parallel longitudinals constituted about the left and right sides, front of following three fixed base plates (3) was fixed respectively again in going up; The place, top of associated frame members also is hung with back timber (5); The position that back timber (5) is gone up corresponding every group of set of rails is provided with an electro-motor (6); Electro-motor (6) adopts wire rope to connect the top of a releasing mechanism; The releasing mechanism below articulates slide block assembly (7), and a metal grid screen (21) is established in the left side of slide block assembly (7), and the vertical corresponding position in both sides, the releasing mechanism back side and slide block assembly (7) both sides, the back side is respectively equipped with semiclosed bearing (8); The semi-enclosed bearing (8) of the releasing mechanism and the left and right sides, the slide block assembly back side be socketed in respectively fixed base plate (3) about on two guide rails (4); Set of rails both sides between base cross members and intermediate transverse girder are respectively equipped with optoelectronic switch (17) and height display device (19); The both sides that are positioned at each set of rails on the intermediate transverse girder (2) are respectively equipped with limit switch (35); Be positioned at the column (1) that intermediate transverse girder (2) locates and be provided with horizontal level display device (18).

2. a kind of dropping shock testing equipment as claimed in claim 1; It is characterized in that: described flute profile pulley gear (31) adopts the trough plate (26) that is connected the formed front openings of upper and lower plate one side by two ends about the base plate of back respectively; The notch of trough plate (26) front side is behind the nested firmly crossbeam of the rear side of crossbeam (2); The front end of the upper and lower plate of trough plate (26) is fixed on the back side of fixed base plate (3) again; Crossbeam (2) the top right ends that is positioned at trough plate is also established a level respectively to the roller (29) that rolls, and the roller shaft front and back end of roller (29) is separately fixed on the back base plate of the back side and trough plate (26) of fixed base plate (3) again.

3. a kind of dropping shock testing equipment as claimed in claim 1; It is characterized in that: described releasing mechanism lower end articulates the slide block assembly; Wherein, releasing mechanism adopts the housing (12) of a rectangle, and the back side right ends of housing (12) is respectively equipped with semi-enclosed bearing (8); Housing (12) is made as W shape groove in the middle of the bottom, and junction is vertically to fluting in the middle of the W shape groove; The left side level is to establishing a stub (13) in the housing (12), and stub (13) is provided with and powers up trigger mechanism, and the right-hand member of stub (13) connects interlock hook left end, the interlock hook be coupling on the housing rear wall and be positioned at W shape groove above; Housing (12) outer bottom is positioned at the right side of W shape groove and establishes a connection piece (14); Horizontal pin-and-hole is established on the nearly top of web member; Be positioned at key seat (15) top of the following connection level of housing (12) on web member (14) right side to the pair pin; The pin (16) of secondary pin is established in the left side of key seat (15), and the left end pin joint of the pin (16) of secondary pin is gone in the horizontal pin-and-hole of web member (14), and secondary pin is provided with trigger mechanism; Described interlock hook comprises triggering hook (22), hook (23); Described triggering hook (22) adopt have angle about the triggering hook of approximate " 7 " font of constituting of two arms; The left arm top of triggering hook (22) is provided with the pothook (24) that bends inwards; The right arm that triggers hook (22) is a straight-arm, and the angled end that triggers hook (22) is coupling on inner walls, and described hook (23) is established the approximate figure of three structure that crotch portion (25) is established in the knuckle lower end for the upper end; Hook (23) is coupling in inner walls and is positioned at the below of triggering hook (22), and links up with the knuckle of (23) upper end and trigger pothook (24) clamping each other that hook is inwardly rolled over; Described slide block assembly (7) is for adopting a rectangular aluminum sheet as mass (9); Four jiaos of symmetries of the trailing flank of rectangular aluminum sheet (9) are established four semi-enclosed bearings (8); The centre position of the front side of rectangular aluminum sheet (9) connects the place, nearly top of a guide pole (10), and a fixing link (11) bottom, the top of guide pole (10) constitutes; The bottom left end of web member (14) is connected the right side at the nearly top of guide pole (10); The link (11) of slide block assembly (7) embeds in the groove in the middle of the W shape trench bottom of releasing mechanism bottom, in the releasing mechanism crotch portion (25) of hook (23) bottom pass junction in the middle of the W shape groove set vertically to fluting and hook link (11); The left side of described slide block assembly (7) is established a metal grid screen (21) and is established a metal grid screen (21) for the left side of rectangular aluminum sheet (9) in the slide block assembly.

4. a kind of dropping shock testing equipment as claimed in claim 1; It is characterized in that: the leading flank of following three crossbeams (2) also is respectively equipped with level trough (30) in going up; The back side of the fixed base plate (3) at corresponding level trough place is provided with pin (32), in the level trough (30) of pin (32) stemple.

5. a kind of dropping shock testing equipment as claimed in claim 1; It is characterized in that: the leading flank of following three crossbeams (2) is also laid some crossbeam pilot holes (33) in going up; Also be provided with at least two base plate pilot holes (34) on the fixed base plate (3); Crossbeam pilot hole (33) and base plate pilot hole are at same horizontal level, and base plate pilot hole (34) adopts screw retention to be connected with crossbeam pilot hole (33).

6. a kind of dropping shock testing equipment as claimed in claim 1 is characterized in that: the below of framework is provided with places to be measured testing table (36).

7. a kind of dropping shock testing equipment as claimed in claim 1; It is characterized in that: some frameworks are arranged in array; The top of the set of rails that framework connected also vertically connects grid-like upper frame (37), and four jiaos of the grid-like upper frame are adopted support column (38) support and connection.

8. a kind of dropping shock testing equipment as claimed in claim 1 is characterized in that: the also vertical respectively crane beam (39) that connects of two root posts (1) about framework.

9. a kind of dropping shock testing equipment as claimed in claim 1 is characterized in that: be respectively equipped with extension rod (40) between adjacent two guide poles (10), be adsorbed with permanent magnet (41) between adjacent two extension rods.

10. a kind of dropping shock testing equipment as claimed in claim 1; It is characterized in that: controller adopts circuit to connect the signal end that powers up trigger mechanism of releasing mechanism and the signal end of trigger mechanism respectively; And optoelectronic switch also is equipped with data acquisition unit, and electro-motor is equipped with telepilot.