CN104458183A - Light fixture drop-proof performance testing device - Google Patents
Light fixture drop-proof performance testing device Download PDFInfo
- Publication number
- CN104458183A CN104458183A CN201310418132.1A CN201310418132A CN104458183A CN 104458183 A CN104458183 A CN 104458183A CN 201310418132 A CN201310418132 A CN 201310418132A CN 104458183 A CN104458183 A CN 104458183A
- Authority
- CN
- China
- Prior art keywords
- light fixture
- lifting rope
- proving installation
- connection block
- fork
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a light fixture drop-proof performance testing device, comprising a support member, a height regulating part and a dropping module. The height regulating part comprises a motor and a lifting rope, wherein the motor is fixedly arranged on the support member, and comprises a motor shaft; the lifting rope winds the motor shaft and vertically hangs under the motor shaft. The dropping module comprises a connecting seat, a swing member, an elastic component and an electric magnet, wherein the connecting seat is arranged at the other end of the lifting rope; the swing member comprises a swing rod and a pendulum seat, wherein one end of the swing rod is in rotary connection with the connecting seat, and the other end is in connection with the pendulum seat; the pendulum seat and the connecting seat form a hollow part; the elastic component comprises a baffle plate and a spring, wherein the baffle plate is configured to be close to the swing member; the spring is arranged between the baffle plate and the swing member; the electric magnet is configured to be close to the swing member. According to the invention, a light fixture to be detected is arranged on the pendulum seat to test drop-proof performance by utilizing the interaction of the elastic component and the electric magnet to the pendulum seat, thereby providing the light fixture drop-proof performance testing device which has the characteristics of simple structure and high efficiency.
Description
Technical field
The present invention relates to lighting field, particularly relate to the proving installation of the dropproof performance of a kind of light fixture.
Background technology
Portable explosion-proof light fixture, have that volume is little, easy to carry, reliability is high and the advantage such as good illumination effect, and due to Portable explosion-proof light fixture be generally hand held use, there is in user's use procedure the risk on the ground that dropped because of carelessness, light fixture may be caused to damage, impact uses, and therefore the dropproof performance of Portable explosion-proof light fixture just must to be considered in its design phase.
The test of the existing dropproof performance to Portable explosion-proof light fixture often tester is manually fallen with hand, and cannot reach consistent due to everyone test operation method, the property of there are differences, therefore result in test structure inaccurate, thus the reliability of light fixture cannot be guaranteed.
Summary of the invention
The object of the present invention is to provide a kind of structure simple, safe and reliable and the proving installation of the effective dropproof performance of light fixture.
In order to solve the problems of the technologies described above, the invention provides the proving installation of the dropproof performance of a kind of light fixture, comprise support member, height adjusting part and falling assembly;
Described support member is for supporting described height adjusting part;
Described height adjusting part comprises motor and lifting rope, described motor is fixedly arranged on described support member, described motor comprises motor shaft, and the one ends wound of described lifting rope is on described motor shaft, and the other end of described lifting rope stretches out described motor shaft and fishes below described motor shaft;
The described assembly that falls comprises Connection Block, swing component, elastic component and electromagnet, and described Connection Block is located on the other end of described lifting rope; Described swing component comprises fork and swing seat, one end of described fork is rotationally connected with on described Connection Block, described swing seat is connected on the other end of described fork, and described swing seat and described Connection Block form hollow bulb, described swing seat is for placing tested light fixture, and described tested light fixture is arranged in described hollow bulb; Described elastic component comprises baffle plate and spring, and the contiguous described swing component of described baffle plate is arranged, and described spring is located between described baffle plate and described swing component, and described spring is in deformed state; The contiguous described swing component of described electromagnet is arranged, and when described electromagnet energising, the magnetic force that described fork is subject to and the elastic force that described fork is subject to balance, and when described electromagnet power-off, the direction that described fork recovers self-deformation along described spring swings.
Wherein, described support member comprises two support bars and a head rod, and the two ends of described head rod are connected on one end of two described support bars, and described motor is fixedly arranged on described head rod.
Wherein, described support bar outside surface is provided with scale, and described scale value becomes large successively along the other end of described lifting rope to the direction of one end of described lifting rope, and the maximal value of described scale is 0.5m ~ 1m.
Wherein, described support member also comprises a base, and the other end of two described support bars is fixedly arranged on described base.
Wherein, the two ends of described Connection Block are slidably connected on two described support bars respectively.
Wherein, described Connection Block offers and swings hole, described fork swings and is connected in described swing hole.
Wherein, described baffle plate is located on described Connection Block, and described spring is in extended state; Described electromagnet is located on described Connection Block, and described swing component is between described electromagnet and described elastic component.
Wherein, the material steel wire of described lifting rope.
Wherein, described height adjusting part also comprises a rotating disk, and described rotating disk is fixedly arranged in described rotating shaft, and the one ends wound of described lifting rope is on described rotating disk, and the other end of described lifting rope stretches out described rotating disk and fishes below described rotating disk.
Wherein, the proving installation of the dropproof performance of described light fixture also comprises control piece, and described control piece comprises the first switch and second switch, and described first switch and described second switch are electrically connected on described motor and described electromagnet respectively.
The proving installation of the dropproof performance of light fixture provided by the invention is by being positioned on swing seat by tested light fixture, utilize elastic component and magnet to fall to make described tested light fixture the interaction of described swing seat, thus provide the proving installation of the dropproof performance of simple, the safe and reliable and high efficiency light fixture of a kind of structure.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the proving installation of the dropproof performance of light fixture that embodiment of the present invention provides;
Fig. 2 is the schematic diagram at another visual angle of the proving installation of the dropproof performance of light fixture of Fig. 1.
Embodiment
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is clearly and completely described.
See also Fig. 1 to Fig. 2, the proving installation 100 of the dropproof performance of a kind of light fixture that embodiment of the present invention provides, for the dropproof performance test of tested light fixture (not shown), comprise support member 1, height adjusting part 2 and fall assembly 3, described support member 1 is for supporting the proving installation 100 of the dropproof performance of described light fixture, described height adjusting part 2 is located on described support member 1, described height adjusting part 2 is for falling the height of assembly 3 described in regulating, the described assembly 3 that falls is located on described height adjusting part 2, the described assembly 3 that falls is for falling described tested light fixture placed thereon.
Described support member 1 is for supporting described height adjusting part 2.In the present embodiment, described support member 1 comprises two support bars 11 and a connecting link 12, described connecting link 12 two ends are connected on one end of two described support bars 11, particularly, described support bar 11 comprises the stiff end 11a and link 11b that are oppositely arranged, described stiff end 11a for being fixed on mounted face, such as, says ground or platform etc., and described connecting link 12 two ends are connected on two described support bar 11 one end.Certainly, in other embodiments, described support member 1 comprises a fixed bar and a web joint, and ground or platform etc. for being fixed on mounted face, such as, are said in described fixed bar one end; Described web joint is connected on described fixed bar link 11b.
Because the proving installation 100 of the dropproof performance of described light fixture can cause different pressure tests by differing heights to described tested light fixture, and for the ease of adjustment height, described support bar 11 outside surface is provided with scale (not shown), described scale value becomes large successively along the other end of described lifting rope 22 to the direction of one end of described lifting rope 22, and the maximal value of described scale is 0.5m ~ 1m.In the present embodiment, two described support bar 11 outside surfaces all can have scale value, when the height of described impulse member needs to adjust to preset height, only need slide described second connecting link 12 to corresponding scale value.Concrete, the maximal value of described scale is 0.7m.Certainly, in other embodiments, the maximal value of described scale can be greater than or less than 0.7m.
In order to make the installation of the proving installation 100 being convenient to the dropproof performance of described light fixture, the other end that described support member 1 also comprises a base 13, two described support bars 11 is fixedly arranged on described base 13.In the present embodiment, described base 13 is cuboid, the stiff end 11a of described support bar 11 is fixedly connected on described base 13, thus when the proving installation 100 of the dropproof performance of described light fixture uses, again the proving installation 100 of dropproof for described light fixture performance need not be gone to go to fixedly mount with the plane that will install, save manpower and materials.
Described height adjusting part 2 comprises motor 21 and lifting rope 22, and described motor 21 is fixedly arranged on described support member 1, and described motor 21 comprises motor shaft 21a.In the present embodiment, described motor 21 is low speed rotation motor 21, with the speed of per minute ten turns rotate, the central shaft of motor shaft 21a and the length direction of described lifting rope 22 perpendicular, to ensure that described lifting rope 22 can be fished below described motor shaft 21a.Described motor 21 is fixedly arranged on the centre position of described connecting link 12, and the central axis of described connecting link 12 and the central axis of described motor shaft 21a are parallel to each other.Certainly, in other embodiments, the actual conditions according to test select described motor 21 type, and described motor 21 can also be alternating current generator 21.
The one ends wound of described lifting rope 22 is on described motor shaft 21a, and the other end of described lifting rope 22 stretches out described motor shaft 21a and fishes below described motor shaft 21a.In the present embodiment, because described lifting rope 22 needs certain weight of slinging, on the one hand in order to ensure the intensity of described lifting rope 22, extend the life-span of the proving installation 100 of the dropproof performance of described light fixture, on the other hand described lifting rope 22 can be fished as much as possible along vertical direction, the described tested light fixture of the other end being connected to described lifting rope 22 can be done vertically rise or decline, prevent described tested light fixture from surprisingly falling in this process, affect testing efficiency, the material of described lifting rope 22 is steel wire, and namely described lifting rope 22 is wire rope.Wherein, described vertical direction is the vertical direction of proving installation 100 put correctly of the dropproof performance of described light fixture.Certainly, in other embodiments, the material of described lifting rope 22 can also be fiber crops.
Better be wound on described motor shaft 21a to allow described lifting rope 22, described height adjusting part 2 also comprises a rotating disk 21b, described rotating disk 21b is fixedly arranged on described motor shaft 21a, one end of described lifting rope 22 is fixed on described rotating disk 21b, described lifting rope 22 is wound on described rotating disk 21b, and the other end of described lifting rope 22 stretches out described rotating disk 21b and fishes below described rotating disk 21b.In the present embodiment, the xsect of described rotating disk 21b is H type, is sheathed on described motor shaft 21a, rotates along with the rotation of described motor shaft 21a.
The described assembly 3 that falls comprises Connection Block 31, swing component 32, elastic component 33 and electromagnet 34, and described Connection Block 31 is located on the other end of described lifting rope 22.In the present embodiment, described Connection Block 31 rises along with described lifting rope 22 in the vertical direction or declines, in order to make described Connection Block 31 can not rock at vertical direction further, described Connection Block 31 two ends are slidably connected on described two described support bars 11 respectively.Concrete, described Connection Block 31 is square shaft-like, described Connection Block 31 comprises the first surface 311 and the second face 312 that are oppositely arranged along described vertical direction, described first surface 311 is connected on the other end of described lifting rope 22, the two ends of described Connection Block 31 are respectively equipped with a sliding sleeve 313 and can slide by support bar 11 described in relative two respectively, make described Connection Block 31 at described vertical direction along with described lifting rope 22 does rectilinear motion.Certainly, in other embodiments, the two ends that described Connection Block 31 is oppositely arranged can also be respectively equipped with slide block, and accordingly, support bar 11 described in two is respectively equipped with chute, slide block described in two slides respectively and is arranged in chute described in two.
In order to reasonably optimize the structure of described Connection Block 31, described Connection Block 31 offering and swings hole 312a, described fork 321 swings and is connected in described swing hole 312a.In the present embodiment, second face 312 of described Connection Block 31 offers and swings hole 312a, the shape of described swing hole 312a is rectangle, described swing hole 312a is respectively equipped with column-shaped projection (not shown) along perpendicular to the central axis direction of described motor shaft 21a with the relative both sides of described vertical direction, the spacing of column-shaped projection described in two is comparatively large, and namely the size of column-shaped projection described in two is less compared to the size of described swing hole 312a.Certainly, in other embodiments, described swing hole 312a can also be respectively equipped with column-shaped projection along the both sides that the direction of the central shaft being parallel to described motor shaft 21a is relative.Second face 312 of described Connection Block 31 along being provided with the cylindricality plug-in unit be oppositely arranged, can also be provided with spacing between cylindricality plug-in unit described in two, and central shaft and the described vertical direction of described cylindricality plug-in unit are perpendicular.
Described swing component 32 comprises fork 321 and swing seat 322, and one end of described fork 321 is rotationally connected with on described Connection Block 31.In the present embodiment, one end of described fork 321 is provided with through hole (not shown), the central axis direction of described through hole is perpendicular to described vertical direction, when described fork 321 will be rotationally connected with on described Connection Block 31, described fork 321 button is located on column-shaped projection described in two, even if column-shaped projection described in two is arranged in described through hole, the structure that described fork 321 is connected with the similar pin of described Connection Block 31, makes described fork 321 can be rotationally connected with on described Connection Block 31.Wherein, in order to the proving installation 100 of the dropproof performance of light fixture described in Reasonable Arrangement, when described fork 321 is rotationally connected with on described Connection Block 31, the central axis direction of described through hole is vertical with the central axis direction of described motor shaft 21a, and described swing component 32 can be swung back and forth in described swing hole 312a along the central axis direction of described motor shaft 21a.Certainly, in other embodiments, when described fork 321 is rotationally connected with on described Connection Block 31, the central axis direction of described through hole is parallel to the central axis direction of described motor shaft 21a, and described fork 321 can be swung back and forth in described swing hole 312a along the central axis direction perpendicular to described motor shaft 21a.
Described swing seat 322 is connected on the other end of described fork 321, and described swing seat 322 and described Connection Block 31 form hollow bulb 322a, and described swing seat 322 is for placing light fixture, and described light fixture is arranged in described hollow bulb 322a.In the present embodiment, in order to place described tested light fixture stably, described swing seat 322 is lamellar, described swing seat 322 is integral type structure with the other end of described fork 321, described swing seat 322 forms hollow bulb 322a with described Connection Block 31, namely the xsect of described swing component 32 is L-type, when described fork 321 swings, the described tested light fixture be positioned on described swing seat 322 can swing along with described fork 321 simultaneously, and due to described swing component 32 be L-type, described tested light fixture can be fallen from described swing seat 332.
In order to make described fork 321 can automatic swing, described elastic component 33 comprises baffle plate 331 and spring 332, the contiguous described swing component 32 of described baffle plate 331 is arranged, and described spring 332 is located between described baffle plate 331 and described swing component 32, and described spring 332 is in deformed state.In the present embodiment, in order to reasonably optimize the structure of the proving installation 100 of the dropproof performance of described light fixture, described baffle plate 331 is located on described Connection Block 31, and described spring 332 is in extended state.Concrete, described spring 332 is located between described baffle plate 331 and described fork 321, namely the direction that the elastic force that is subject to of described fork 321 and described tested light fixture can tilt to fall is contrary, when described spring 332 will recover self-deformation, described tested light fixture can fall along described swing component 32 with the openend direction that described Connection Block 31 is formed, and improves testing efficiency.
The contiguous described swing component 32 of described electromagnet 34 is arranged, and when described electromagnet 34 is energized, the magnetic force that described fork 321 is subject to and the elastic force that described fork 321 is subject to balance, and when described electromagnet 34 power-off, the direction that described fork 321 recovers self-deformation along described spring 332 swings.In the present embodiment, in order to make described fork 321 along the central axis direction stress balance of described motor shaft 21a, described electromagnet 34 is located on described Connection Block 31, and described swing component 32 is between described electromagnet 34 and described elastic component 33.Concrete, tension state is stretched because described spring 332 is in, in order to make the stress balance of described fork 321, and the more reasonable structure of the proving installation 100 in order to the dropproof performance of described light fixture, described electromagnet 34 is located on described second face 312, the elastic force that the magnetic force that described electromagnet 34 and the spacing of described swing component 32 produce can be subject to described fork 321 balances each other, when doing rectilinear motion to make described lifting rope 22, described swing component 32 can balance always in stressed maintenance, make described tested light fixture can carry out the adjustment of height stably, improve the testing efficiency of tester.Certainly, in other embodiments, no matter spring 332 is in extended state or compressive state, and described spring 332 all can do simple harmonic motion because of recovering self-deformation, and then described tested light fixture is fallen.According to this point, described electromagnet 34 can also be located at the same side with described spring 332, and accordingly, described spring 332 will be in compressive state or be located at opposite side to stretch tension state, makes described swing component 32 stress balance.
Conveniently control the proving installation 100 of the dropproof performance of described light fixture, the proving installation 100 of the dropproof performance of described light fixture also comprises control piece 4, described control piece 4 comprises the first switch 41 and second switch 42, and described first switch 41 and described second switch 42 are electrically connected on described motor 21 and described electromagnet 34 respectively.In the present embodiment, when described first switch 41 is in closed state, described motor shaft 21a rotates, the lifting rope 22 be wound on described motor shaft 21a starts to be wound around (or starting to unclamp), described Connection Block 31 is driven to do rectilinear motion along described vertical direction, when described first switch 41 is in the state of disconnection, described motor shaft 21a stops operating, and described Connection Block 31 can be fixed on a height transfixion; When described second switch 42 is in closure state, described electromagnet 34 is owing to being connected with electricity, produce magnetic force, described swing component 32 can be subject to magnetic force, the magnetic force that described swing component 32 is subject to and described swing component 32 are subject to elastic force always and balance each other, described swing component 32 is remained static always, when described second switch 42 is in off-state, the magnetic force of described electromagnet 34 disappears, make described swing component 32 do simple harmonic motion because following described spring 332 by force unbalance, thus described tested light fixture is fallen from swing seat 332.
When the proving installation 100 of the dropproof performance of described light fixture is brought into use, two described support bar 11 stiff end 11a are fixedly connected on described base 13, again two sliding sleeves 313 of described second connecting link 12 are sheathed on two described support bars 11 respectively, again the two ends of described connecting link 12 are connected on the link 11b of support bar 11 described in two, described motor 21 is fixedly arranged on described connecting link 12, the central shaft of described motor shaft 21a is paralleled with the central shaft of described connecting link 12, then the described rotating disk 21b being wound with described lifting rope 22 is sheathed on described motor shaft 21a, again the other end of described lifting rope 22 is located on described first surface 311, being swung by described swing component 32 is connected on described second face 312, again described elastic component 33 and described magnet are located at respectively the both sides of described swing component 32, described second switch 42 is closed, the magnetic force that described swing component 32 is subject to and described swing component 32 are subject to elastic force always and balance each other, described swing component 32 is remained static always, and then make the described tested light fixture transfixion that is positioned on described swing component 32, described first switch 41 is closed, described motor shaft 21a is rotated, after driving described Connection Block 31 to preset height, disconnect described first switch 41, described tested light fixture is made to maintain required height, then described second switch 42 is disconnected again, described electromagnet 34 magnetic force is disappeared, described swing component 32 is made to do simple harmonic motion because following described spring 332 by force unbalance, thus described tested light fixture is fallen from swing seat 322.
The proving installation 100 of the dropproof performance of light fixture provided by the invention is by being positioned on swing seat 322 by tested light fixture, utilize elastic component 33 and magnet to fall to make described tested light fixture the interaction of described swing seat 322, thus provide the proving installation 100 of the dropproof performance of simple, the safe and reliable and high efficiency light fixture of a kind of structure.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a proving installation for the dropproof performance of light fixture, is characterized in that, comprises support member, height adjusting part and falls assembly;
Described support member is for supporting described height adjusting part;
Described height adjusting part comprises motor and lifting rope, described motor is fixedly arranged on described support member, described motor comprises motor shaft, and the one ends wound of described lifting rope is on described motor shaft, and the other end of described lifting rope stretches out described motor shaft and fishes below described motor shaft;
The described assembly that falls comprises Connection Block, swing component, elastic component and electromagnet, and described Connection Block is located on the other end of described lifting rope; Described swing component comprises fork and swing seat, one end of described fork is rotationally connected with on described Connection Block, described swing seat is connected on the other end of described fork, and described swing seat and described Connection Block form hollow bulb, described swing seat is for placing tested light fixture, and described tested light fixture is arranged in described hollow bulb; Described elastic component comprises baffle plate and spring, and the contiguous described swing component of described baffle plate is arranged, and described spring is located between described baffle plate and described swing component, and described spring is in deformed state; The contiguous described swing component of described electromagnet is arranged, and when described electromagnet energising, the magnetic force that described fork is subject to and the elastic force that described fork is subject to balance, and when described electromagnet power-off, the direction that described fork recovers self-deformation along described spring swings.
2. the proving installation of the dropproof performance of light fixture according to claim 1, it is characterized in that, described support member comprises two support bars and a head rod, the two ends of described head rod are connected on one end of two described support bars, and described motor is fixedly arranged on described head rod.
3. the proving installation of the dropproof performance of light fixture according to claim 2, it is characterized in that, described support bar outside surface is provided with scale, and described scale value becomes large successively along the other end of described lifting rope to the direction of one end of described lifting rope, and the maximal value of described scale is 0.5m ~ 1m.
4. the proving installation of the dropproof performance of light fixture according to claim 2, is characterized in that, described support member also comprises a base, and the other end of two described support bars is fixedly arranged on described base.
5. the proving installation of the dropproof performance of light fixture according to claim 2, is characterized in that, the two ends of described Connection Block are slidably connected on two described support bars respectively.
6. the proving installation of the dropproof performance of light fixture according to claim 1, is characterized in that, described Connection Block offers and swings hole, and described fork swings and is connected in described swing hole.
7. the proving installation of the dropproof performance of light fixture according to claim 1, is characterized in that, described baffle plate is located on described Connection Block, and described spring is in extended state; Described electromagnet is located on described Connection Block, and described swing component is between described electromagnet and described elastic component.
8. the proving installation of the dropproof performance of light fixture according to claim 1, is characterized in that, the material steel wire of described lifting rope.
9. the proving installation of the dropproof performance of light fixture according to claim 1, it is characterized in that, described height adjusting part also comprises a rotating disk, described rotating disk is fixedly arranged in described rotating shaft, the one ends wound of described lifting rope is on described rotating disk, and the other end of described lifting rope stretches out described rotating disk and fishes below described rotating disk.
10. the proving installation of the dropproof performance of light fixture according to claim 1, it is characterized in that, the proving installation of the dropproof performance of described light fixture also comprises control piece, described control piece comprises the first switch and second switch, and described first switch and described second switch are electrically connected on described motor and described electromagnet respectively.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310418132.1A CN104458183A (en) | 2013-09-13 | 2013-09-13 | Light fixture drop-proof performance testing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310418132.1A CN104458183A (en) | 2013-09-13 | 2013-09-13 | Light fixture drop-proof performance testing device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN104458183A true CN104458183A (en) | 2015-03-25 |
Family
ID=52904601
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201310418132.1A Pending CN104458183A (en) | 2013-09-13 | 2013-09-13 | Light fixture drop-proof performance testing device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN104458183A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108106806A (en) * | 2017-12-15 | 2018-06-01 | 苏州德特尼罗电子科技有限公司 | A kind of OLED Curved screens fall-down test contrast test device |
-
2013
- 2013-09-13 CN CN201310418132.1A patent/CN104458183A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108106806A (en) * | 2017-12-15 | 2018-06-01 | 苏州德特尼罗电子科技有限公司 | A kind of OLED Curved screens fall-down test contrast test device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104215535B (en) | cable wear resistance testing device | |
CN104458183A (en) | Light fixture drop-proof performance testing device | |
JP6153001B2 (en) | Automatic connection device | |
CN202994948U (en) | Locking structure of suspension insulator detection robot | |
ES2641506T3 (en) | Detector for a conductor of an electrical network | |
CN110867756A (en) | Can store distribution tool's outdoor control cabinet | |
CN116518951A (en) | Expressway investigation design measurement device and measurement method | |
CN204167783U (en) | Stockbridge damper resetting means in short distance | |
CN104577872A (en) | Device for charged removal of fault indicators | |
CN102644560B (en) | Cable twist-off preventing device of small-sized wind power generator | |
CN208432694U (en) | A kind of circuit board on-off detecting tool | |
CN104677603A (en) | Power plug pulling force testing device | |
CN104037508A (en) | Clamp for throwing type grounding wire | |
CN109374955B (en) | High-voltage electricity testing device for plateau power distribution network based on wind pressure effect | |
CN204831702U (en) | Novel electrified SF6 leak hunting device | |
JP2005147907A (en) | Abnormal vibration detecting mechanism for overhead power transmission line | |
CN209327499U (en) | A kind of wire breakage monitor of communication line | |
CN209367540U (en) | A kind of wire-sending device | |
CN106602463B (en) | Fault detector installation tool and fault detector | |
CN207675539U (en) | A kind of clamp structure of electric wire tensile testing machine | |
CN104697757A (en) | Lamp holder durability testing device | |
CN205643643U (en) | SF 6 circuit breaker explosion chamber pressure test frock | |
CN208953227U (en) | A kind of spring force detection device | |
CN104483068A (en) | Electromagnetic gravity balance device | |
CN104655398A (en) | Lamp base binding force testing tool and testing method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
WD01 | Invention patent application deemed withdrawn after publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |