CN110553796B - Box type rain test equipment - Google Patents
Box type rain test equipment Download PDFInfo
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- CN110553796B CN110553796B CN201910895731.XA CN201910895731A CN110553796B CN 110553796 B CN110553796 B CN 110553796B CN 201910895731 A CN201910895731 A CN 201910895731A CN 110553796 B CN110553796 B CN 110553796B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses box-type rain test equipment, which relates to the field of box body rain test and aims to solve the problem that the traditional product box body cannot be subjected to tightness test before leaving factory.
Description
Technical Field
The invention relates to the technical field of rain test of products, in particular to box type rain test equipment.
Background
The rain test equipment is suitable for external illumination and signal devices and protection of automobile lamp shells, and can provide various environments such as water spraying and spraying tests possibly suffered by vivid simulation electronic products and components thereof during transportation and use. The waterproof performance of various products can be detected, and the waterproof performance is mainly used for tests of two grades of IP5X and IP6X specified in the shell protection grade standard.
The current chinese patent of grant bulletin No. CN206540662U discloses a waterproof test pendulum pipe rain test device which includes first box, the second box, the pendulum pipe, first base, first water tank, the second water tank, carry the thing revolving stage, second base and recovery chamber, the fixed second water tank that is provided with in inside of first box, the fixed first water tank that is provided with in inside of second box, the inside of first base is provided with the recovery chamber, the inside installation dwang that rotates through the bearing frame that passes through of second base, the top cover of dwang is equipped with the support sleeve, the top fixed mounting of support sleeve carries the thing revolving stage, the inside of second base still is provided with first motor, the output shaft of first motor passes through ratchet and links with the dwang mutually, it is provided with the pendulum pipe to rotate through the bearing connected mode between first box and the second box.
The current Chinese patent with the publication number of CN102486428A discloses a rain test box for LED street lamps, which comprises a test box body, a rain test cavity arranged obliquely above the inside of the test box body, an object stage for the tested LED street lamps to be installed and capable of driving the tested LED street lamps to synchronously rotate in the horizontal direction, a driving motor for driving the object stage, a spraying device arranged right above the tested LED street lamps and a control panel arranged on the outer side wall of the test box body, wherein the spraying device is connected with a water tank through a water feeding pipe and a water pump water outlet pipe, a water pump is connected between the water feeding pipe and the water pump water outlet pipe, the object stage is horizontally arranged inside the rain test cavity, and the driving motor, a flow regulating valve and the water pump are controlled by the control panel.
Referring to fig. 1, in the conventional product box 1, a large number of product boxes 1 are distributed outdoors, the product boxes 1 inevitably experience wind and rain forests when used outdoors, and the rain-proof capability of the product boxes 1 becomes an important index of product quality.
The above prior art solutions have the following drawbacks: after the existing product box is processed in a factory and before the product box leaves a factory, how to detect the tightness of the box becomes one of the problems that an engineer must solve.
Disclosure of Invention
The invention aims to provide box type rain test equipment which has the effect of detecting the sealing performance of a product box body.
In order to achieve the purpose, the invention provides the following technical scheme:
a box-style rain test apparatus comprising: the test box body is used for placing the product box body;
the standing and rain-spraying device is arranged in the test box body, is born at the top of the test box body and is used for spraying the outer side wall of the product box body;
the rain recovery system is borne on the bottom wall of the test box body and is used for recovering the shower water; and the number of the first and second groups,
bear in the inside wall of test box, and reciprocating type rotation, be used for to the lateral wall of product box carries out the spray set that the scanning sprays.
Through adopting above-mentioned technical scheme, the product box after processing in the mill before dispatching from the factory, the sealed experiment of drenching with rain that will carry out relative product box, this moment in will following numerous products the selective examination product box, then place the product box in the test box, then start simultaneously and stew with rain device and spray set, drench with rain the test to the product box simultaneously, then open the test box and see whether the product box is inside to have water can, thereby play and detect whether the product box can be rain-proof effect of drenching before the product box dispatches from the factory.
Further, the rain device of stewing is including setting up the inlet tube at the test box roof, what communicate on the inlet tube has the rain pipe, it is a plurality of to drench the rain pipe and arrange at the test box roof, and is a plurality of it has a plurality of shower nozzles that spray to the test box diapire along its length direction equipartition to drench the rain pipe.
Through adopting above-mentioned technical scheme, when needing to start the rain device of stewing, as long as operating personnel adds water in to the inlet tube, the water in the inlet tube can get into the rain pipe, drenches the rain pipe and can spray water to product box roof through the shower nozzle that drenches with rain, the position that the shower of equipartition can cover the product box at the test box roof to the effect of drenching with rain for the product box in the test box that plays.
Further, spray set sets up the shower at the test box inside wall including rotating, the equipartition has a plurality of shower heads that spray to product box lateral wall on the shower, shower length direction spanes the relative inside wall of test box, the shower is to the sunken setting of test box diapire, the both ends lateral wall of shower is provided with the rotation axis, the rotation axis rotates and wears to establish on the inside wall of test box, the test box lateral wall is provided with and drives rotation axis pivoted drive arrangement, the shower outside lateral wall is provided with the flexonics pipe of intercommunication inlet tube.
Through adopting above-mentioned technical scheme, the shower nozzle can only make the rainwater flow down from the roof of product box, and current shower can be rotatory around the lateral wall of product box, and the rotatory orbit of shower can cover the lateral wall of product box, and at the pivoted in-process of shower, the shower head can reciprocal lateral wall that sprays the product box to play the effect that test product box lateral wall prevents taking pressure's rainwater performance.
Furthermore, the shower both ends are removable to be provided with the extension pipe, the extension pipe extends to test box diapire, the extension pipe lateral wall has a plurality of cover shower nozzles to the product box lateral wall water spray along its length direction equipartition.
By adopting the technical scheme, the spray pipe can only cover the range of the rotating track of the spray pipe, the rotating track of the spray pipe is the spherical housing, but the spray head on the spray pipe sprays towards the center of the spherical housing all the time, so the coverage range of the spray pipe is smaller, and the spray pipe is always erected in the middle of the test box body for rotation, so that when the product box body is directly placed on the bottom wall of the test box body, the spray pipe cannot cover the whole range of the product box body, the product box body has spraying dead corners, and the product box body needs to be propped up in order to enable the spray pipe to cover the whole product box body, thereby greatly reducing the space utilization rate of the test box body;
the extension pipe sets up the both ends at the shower, the extension pipe extends to test box diapire direction, on the one hand the test box can directly be placed on the diapire of test box, the unable product box four corners that covers of shower can compensate through the extension pipe, thereby play the effect that improves shower coverage area, on the other hand product box can be covered by the full, just need not put up the product box, thereby play the effect that improves test box space utilization, and then play the effect that holds more bulky product box in the box.
Furthermore, rain recovery system is including setting up the collection box under the test box diapire, the test box diapire is the support frame, be provided with the support grid that the lid closed on the collection box on the support frame, the test box lateral wall is provided with the case of intaking of intercommunication collection box, it is provided with the return pump of connecting the inlet tube in the case to intake.
Through adopting above-mentioned technical scheme, the product box is mainly the test leakproofness in the test box, therefore the quality of water does not have very big influence to the test, consequently, the water after spraying also can recycle, the lateral wall that the product box was followed to the water on the product box that sprays can be left, flow into in the collection box from the support grid, the water in the collection box can flow into in the case of intaking, then through the waste water suction once more in the collection box of return water pump, thereby play the effect that improves water resource utilization.
Furthermore, the water inlet of the water return pump is provided with a water suction pipe extending into the water inlet tank, the water inlet tank is provided with a placing cover for placing the water suction pipe, the outer side wall of the placing cover is a placing frame, and the outer side wall of the placing frame is covered with a filter screen.
Through adopting above-mentioned technical scheme, although spray water on the product box can recycle, but the aquatic after spraying is indispensable has other granule impurity, granule impurity can block up the shower head, get into the return water pump in order to prevent the granule impurity of aquatic, operating personnel only need place the cover and place in the case of intaking, then will absorb water and manage and place placing in placing the cover, the filter screen of placing the cover lateral wall can block the granule impurity of aquatic outside, thereby play the effect that prevents the granule impurity of aquatic from getting into the return water pump.
Furthermore, the upper cover of the water inlet tank is provided with an impurity preventing cover, and one surface of the impurity preventing cover, which is far away from the water inlet tank, is provided with a holding handle.
Through adopting above-mentioned technical scheme, prevent that miscellaneous lid can prevent that the external debris of case of intaking from entering into the water intaking case to play the effect that prevents external debris and get into the case of intaking.
Furthermore, a feed inlet has been seted up to a lateral wall of test box, the last portable slide rail that makes things convenient for the product box gliding that is provided with of support grid, portable slide rail sets up along the test box lateral wall at perpendicular to feed inlet place.
Through adopting above-mentioned technical scheme, the product box removes in the test box, and the product box can be scraped by the support grating to be inevitable, and the sliding rail can reduce the frictional force that the product box received to play the effect that conveniently removes the product box.
Furthermore, a positioning rod perpendicular to the movable sliding rail is arranged on the support grating, and a positioning groove clamped with the movable sliding rail is formed in the positioning rod.
Through adopting above-mentioned technical scheme, the locating lever can fix the position of removal slide rail in the test box to play the effect that prevents to remove the slide rail and remove in the test box.
Furthermore, the number of the movable slide rails is two along the length direction of the positioning rod, and an adjusting slide rail is arranged between the two movable slide rails.
Through adopting above-mentioned technical scheme, the size of box has the transform, sets up the regulation slide rail between two movable slide rails to play the effect that makes the box interior adaptation multiple product box of test.
In conclusion, the beneficial technical effects of the invention are as follows:
1. a water inlet pipe, a rain spray pipe and a rain spray head are adopted, so that the effect of rain on the top wall of the product box body is achieved;
2. the recycling tank, the supporting grid, the water inlet tank and the water return pump are adopted, so that the effect of recycling water in the testing tank body is achieved;
3. the spray pipe, the spray head rotating shaft and the driving device are adopted, so that the effect of improving the rain area on the surface of the product box body is achieved.
Drawings
FIG. 1 is a schematic diagram of a product of the prior art;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a schematic structural diagram of a test box according to the present invention;
FIG. 4 is a schematic view of an exploded structure at the bottom wall of the test chamber body in the present invention;
FIG. 5 is an enlarged view of portion A of FIG. 4;
FIG. 6 is a schematic view of an explosion at the water inlet tank of the present invention;
FIG. 7 is a schematic structural view of a standing rain device and a spraying device in the test box body;
FIG. 8 is an enlarged view of the portion B of FIG. 7;
fig. 9 is an enlarged schematic view of the portion C in fig. 7.
In the figure, 1, a product box body; 2. testing the box body; 21. a feed inlet; 22. moving the slide rail; 23. positioning a rod; 24. positioning a groove; 25. adjusting the slide rail; 3. standing the rain device; 31. a water inlet pipe; 32. a rain pipe; 33. a shower head; 4. a rain recovery system; 41. a recycling bin; 42. a support frame; 43. a support grid; 44. a water inlet tank; 45. a miscellaneous cover; 46. a grip handle; 47. a water return pump; 48. a suction pipe; 49. placing a rack; 491. a filter screen; 492. placing a cover; 5. a spraying device; 51. a shower pipe; 52. a shower head; 53. a rotating shaft; 54. a drive device; 55. a connecting pipe; 56. lengthening a pipe; 57. covering the spray head.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 2 and 3, the box type rain test equipment disclosed by the invention comprises a test box body 2 for placing a product box body 1, wherein a feed inlet 21 is formed in one side of the test box body 2, a standing rain device 3 is arranged on the top wall of the test box body 2, a spraying device 5 is arranged between the opposite inner side walls in the test box body 2, a rain recovery system 4 is arranged on the bottom wall of the test box body 2, water inlet pipes 31 are arranged around the top wall in the test box body 2, and the water inlet pipes 31 are respectively communicated with the standing rain device 3 and the spraying device 5; before product box 1 leaves the factory, operating personnel can push test box 2 with product box 1 from feed inlet 21 in, then close test box 2, start simultaneously and stew rain device 3 and spray set 5, spray that 1 lateral wall of product box is comprehensive to play the effect of drenching with the rain to product box 1 before leaving the factory.
Referring to fig. 4 and 5, the bottom wall of the test box body 2 is provided with a support frame 42, the support frame 42 is formed by overlapping a plurality of rod pieces, the rain recovery system 4 comprises a support grid 43 laid on the support frame 42, the support grid 43 is mainly used for placing the product box body 1, a storage box is arranged below the support frame 42, the outer side wall of the test box body 2 is provided with a water inlet box 44, and the recovery box 41 is communicated with the water inlet box 44; three positioning rods 23 are arranged on the support grid 43, the positioning rods 23 are uniformly distributed along the side wall perpendicular to the feed port 21, the positioning rods 23 are provided with positioning grooves 24 along the length direction of the positioning rods 23, movable slide rails 22 are clamped in the positioning grooves 24, two movable slide rails 22 are arranged along the length direction of the positioning rods 23, the two movable slide rails 22 are clamped in the positioning grooves 24, an adjusting slide rail 25 is arranged between the two movable slide rails 22, and pulleys are arranged on the upper surfaces of the adjusting slide rail 25 and the movable slide rails 22 in a sliding manner; when operating personnel need place product box 1 in test box 2, operating personnel as long as place product box 1 promote on two sliding rail 22 can, if the box width is narrower, operating personnel as long as with product box 1 place on a sliding rail 22 with adjust the slide rail 25 can, thereby play the effect that makes sliding rail 22 and adjust slide rail 25 adaptation different model product boxes 1, close test box 2 after, spray back on product box 1, the water after spraying can be along the collection box 41 that the product box 1 lateral wall flowed into, thereby collect the water that sprays the production in the test box 2.
Referring to fig. 6, a water return pump 47 is arranged on a water inlet tank 44, a water suction port of the water return pump 47 is connected with a water suction pipe 48, the water suction pipe 48 extends into the water inlet tank 44, a placing cover 492 is arranged in the water inlet tank 44, the placing cover 492 comprises a placing frame 49, a water suction space for inserting the water suction pipe 48 is enclosed between the placing frame 49 and the inner side wall of the water inlet tank 44, a filter net 491 is wrapped outside the placing frame 49, and the mesh number of the filter net 491 is 50 meshes; the water outlet of the water return pump 47 is communicated with the water inlet pipe 31, one end of the water inlet pipe 31 extending into the water inlet tank 44 is arranged in the placing cover 492, the water collected in the collecting tank flows into the water inlet tank 44, then an operator sucks the water in the water inlet tank 44 into the water inlet pipe 31 through the water return pump 47, so as to achieve the effect of recycling water resources, before the water return pump 47 is started, the operator needs to introduce tap water into the water inlet tank 44, at the moment, a water inlet is arranged on the bottom wall of the water inlet tank 44, then the water inlet is covered with the impurity preventing cover 45, one surface of the impurity preventing cover 45 far away from the water inlet tank 44 is provided with the holding handle 46, before the water return pump 47 is started, the impurity preventing cover 45 needs to be opened firstly to introduce the tap water into the water inlet tank 44, after the water in the water inlet tank 44 is enough to test the water circulation in the tank 2, the impurity preventing cover 45 is closed to start the water return pump 47, although the water flowing into the recovery tank 41 has solid particles, the filter net 491 prevents the solid particles from entering the return pump 47.
Referring to fig. 7 and 8, the device 3 of drenching with rain of stewing includes the pipe 32 of drenching with rain along the 2 diapire equipartitions of test box, and the pipe 32 of drenching with rain has a plurality of shower nozzles 33 along the length direction equipartition, and the pipe 32 of drenching with rain and inlet tube 31 are the intercommunication setting, and when starting the device 3 of drenching with rain of stewing, operating personnel as long as supply water in to the pipe 32 of drenching with rain through inlet tube 31, then drenching with rain pipe 32 through the shower nozzle 33 to the product box 1 roof drenching with rain can.
Referring to fig. 7 and 9, the spraying device 5 includes a semicircular bent spraying pipe 51, two ends of the spraying pipe 51 are rotatably disposed on the inner side wall of the testing box 2, a plurality of spraying heads 52 are uniformly distributed on the spraying pipe 51, the outer side wall of the spraying pipe 51 is connected with a flexible connecting pipe 55, one end of the connecting pipe 55 far away from the spraying pipe 51 is connected with the water inlet pipe 31, two ends of the outer side wall of the spraying pipe 51 are provided with rotating shafts 53, the rotating shafts 53 are rotatably disposed in the side wall of the testing box 2, the side wall of the testing box 2 is provided with a driving device 54 for driving the rotating shafts 53 to rotate, the driving device 54 in the invention includes a servo motor fixed on the side wall of the testing box 2, and a rotor of the servo motor is connected with the rotating shafts 53, thereby playing a role of driving the spraying pipe 51 to scan around the outer side wall of the product box 1; the both ends of shower 51 set up extension pipe 56, and extension pipe 56 extends to test box 2 diapire along shower 51's tangential, and the equipartition has a plurality of shower nozzles 57 that cover on extension pipe 56, and operating personnel can directly place product box 1 at test box 2 diapalls this moment, and extension pipe 56 can cover the unable position that covers of shower 51 to eliminate the dead angle that sprays of product box 1 when the test.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (5)
1. A box-type rain test device, comprising:
the test box body (2) is used for placing the product box body (1);
the standing and rain-spraying device (3) is arranged in the test box body (2), is supported on the top of the test box body (2) and is used for spraying the outer side wall of the product box body (1), and the standing and rain-spraying device (3) comprises a water inlet pipe (31) arranged on the top wall of the test box body (2);
a rain recovery system (4) which is borne on the bottom wall of the test box body (2) and is used for recovering the shower water; and the number of the first and second groups,
bear in the inside wall of test box (2), and reciprocating type rotation, and be used for right the lateral wall of product box (1) carries out spray set (5) that scanning formula sprayed, spray set (5) are including rotating shower (51) that sets up at test box (2) inside wall, the equipartition has a plurality of shower heads (52) that spray to product box (1) outside wall on shower (51), shower (51) length direction stretches across the relative inside wall of test box (2), shower (51) are to the sunken setting of test box (2) diapire, the both ends lateral wall of shower (51) is provided with rotation axis (53), rotation axis (53) rotate wear to establish on the inside wall of test box (2), test box (2) lateral wall is provided with and drives rotation axis (53) pivoted drive arrangement (54), the outer side wall of the spray pipe (51) is provided with a flexible connecting pipe (55) communicated with the water inlet pipe (31);
the rain recovery system (4) comprises a recovery box (41) arranged below the bottom wall of the test box body (2), the bottom wall of the test box body (2) is a support frame (42), a support grid (43) covered on the recovery box (41) is arranged on the support frame (42), a water inlet box (44) communicated with the recovery box (41) is arranged on the outer side wall of the test box body (2), and a water return pump (47) connected with a water inlet pipe (31) is arranged in the water inlet box (44);
a feed inlet (21) is formed in one side wall of the test box body (2), a movable slide rail (22) which is convenient for the product box body (1) to slide is arranged on the support grid (43), and the movable slide rail (22) is arranged along the side wall of the test box body (2) which is vertical to the feed inlet (21);
a feed inlet (21) is formed in one side wall of the test box body (2), a movable slide rail (22) which is convenient for the product box body (1) to slide is arranged on the support grid (43), and the movable slide rail (22) is arranged along the side wall of the test box body (2) which is vertical to the feed inlet (21);
two movable sliding rails (22) are uniformly distributed along the length direction of the positioning rod (23), and an adjusting sliding rail (25) is arranged between the two movable sliding rails (22).
2. The box-style rain test apparatus of claim 1, characterized in that: the utility model discloses a test box, including inlet tube (31), rain pipe (32) have gone up the intercommunication and have drenched rain pipe (32), it has a plurality ofly to drench rain pipe (32) and has arranged a plurality ofly at test box (2) roof, a plurality ofly to drench rain shower nozzle (33) that test box (2) diapire sprayed along its length direction equipartition in rain pipe (32).
3. The box-style rain test apparatus of claim 1, characterized in that: the spray pipe (51) both ends are removable to be provided with extension pipe (56), extension pipe (56) extend to test box (2) diapire, extension pipe (56) lateral wall has a plurality of cover shower nozzles (57) to product box (1) lateral wall water spray along its length direction equipartition.
4. The box-style rain test apparatus of claim 1, characterized in that: the water inlet of return water pump (47) is located to be provided with and stretches into water suction pipe (48) in case (44) of intaking, case (44) of intaking is provided with places cover (492) of placing water suction pipe (48), the lateral wall of placing cover (492) is rack (49), rack (49) lateral wall lid has closed filter screen (491).
5. The box-style rain test apparatus of claim 4, wherein: the anti-impurity cover (45) is covered on the water inlet tank (44), and a holding handle (46) is arranged on one surface, far away from the water inlet tank (44), of the anti-impurity cover (45).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910895731.XA CN110553796B (en) | 2019-09-21 | 2019-09-21 | Box type rain test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910895731.XA CN110553796B (en) | 2019-09-21 | 2019-09-21 | Box type rain test equipment |
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| Publication Number | Publication Date |
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| CN110553796A CN110553796A (en) | 2019-12-10 |
| CN110553796B true CN110553796B (en) | 2021-10-19 |
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| CN201910895731.XA Active CN110553796B (en) | 2019-09-21 | 2019-09-21 | Box type rain test equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111207888A (en) * | 2019-12-24 | 2020-05-29 | 池州学院 | Production server rack-mounting performance test equipment |
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| CN204613330U (en) * | 2015-05-15 | 2015-09-02 | 中国农业科学院农业信息研究所 | A kind of rain test chamber |
| CN205049292U (en) * | 2015-08-03 | 2016-02-24 | 广州市汉迪环境试验设备有限公司 | Multi -functional rain test case |
| CN206540662U (en) * | 2017-02-06 | 2017-10-03 | 广州格瑞检测设备有限公司 | A kind of waterproof test swing pipe shower testing apparatus |
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| KR101123741B1 (en) * | 2010-03-16 | 2012-03-20 | 도로교통공단 | Setting device for water-proofing testing apparatus |
| CN102486428A (en) * | 2010-12-01 | 2012-06-06 | 西安中科麦特电子技术设备有限公司 | Rain test box for LED (Light-emitting Diode) street lamp |
| CN102818812A (en) * | 2012-08-14 | 2012-12-12 | 无锡日联科技有限公司 | X-ray online detection apparatus for lithium ion battery |
| CN206740322U (en) * | 2017-06-02 | 2017-12-12 | 广东众城交通技术有限公司 | A kind of intelligence of rail traffic vehicles, which is drenched with rain, tests water circulation system |
| CN107328526A (en) * | 2017-08-24 | 2017-11-07 | 中车洛阳机车有限公司 | A kind of railcar rain test device |
| CN107589353A (en) * | 2017-09-18 | 2018-01-16 | 南方电网科学研究院有限责任公司 | Insulator rain test device and salt fog test method |
| CN109001558A (en) * | 2018-06-16 | 2018-12-14 | 于婷婷 | A kind of energy-saving and environment-friendly rain test chamber |
| CN109019405A (en) * | 2018-09-28 | 2018-12-18 | 芜湖奕辰模具科技有限公司 | A kind of hoistable platform in air-leakage test cabin |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204613330U (en) * | 2015-05-15 | 2015-09-02 | 中国农业科学院农业信息研究所 | A kind of rain test chamber |
| CN205049292U (en) * | 2015-08-03 | 2016-02-24 | 广州市汉迪环境试验设备有限公司 | Multi -functional rain test case |
| CN206540662U (en) * | 2017-02-06 | 2017-10-03 | 广州格瑞检测设备有限公司 | A kind of waterproof test swing pipe shower testing apparatus |
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