CN218726508U

CN218726508U - Salt spray test device

Info

Publication number: CN218726508U
Application number: CN202222939370.4U
Authority: CN
Inventors: 赫志航; 张剑睿; 薛朝; 王刚; 李�昊
Original assignee: Huacai Technology Laboratory Luoyang Co ltd
Current assignee: Huacai Technology Laboratory Luoyang Co ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-03-24
Anticipated expiration: 2032-11-04

Abstract

The utility model relates to a salt fog test device belongs to metal corrosion resistance test technical field. The device comprises a box body and a box cover positioned above the box body, wherein the box cover is provided with a water absorption mechanism and wringing rollers which are positioned on two sides of the box cover and have the same width with the box cover, and the wringing rollers deviate from a collecting funnel and are positioned right above a sample placing area for placing a sample; the water absorbing mechanism comprises a water absorbing element and a handle, the water absorbing element is located in the box cover, the handle is located outside the box cover, a first magnet is arranged in the water absorbing element, a second magnet matched with the first magnet is arranged in the handle, the handle drives the water absorbing element to slide along the inner top wall of the box cover to absorb adhered liquid drops, and water in the water absorbing element is extruded out through the water squeezing roller. The technical problem that in a salt spray test, large water drops are gathered in an unclean area of the inner wall of the cone top in advance and drop on a test sample to influence the accuracy of the salt spray test is solved.

Description

Salt spray test device

Technical Field

The utility model relates to a metal corrosion resistance tests technical field, specific salt fog test device that says so.

Background

In order to ensure the accuracy of the salt spray test, the national standard GB/T2423.17-93 test Ka of basic environmental test regulations for electrical and electronic products, namely the salt spray test method, requires that water drops gathered at the top, the wall and other parts in the test equipment cannot drop on a test sample, and the temperature in the box body is constant at 35 +/-2 ℃.

In order to prevent that the drop of water from falling to test sample, the staff regularly opens equipment, scrape the drop of water of gathering on experimental box top with the scraper blade, prevent that the drop of water from falling to test sample, this mode needs staff often to open equipment, lead to partial salt fog to spill over from the box after equipment is opened, cause the interior salt fog concentration of box after the closure once more to reduce, cause the inside salt fog uniformity that sprays of box, and the many times of equipment open and shut and lead to temperature invariable 35 +/-2 degrees in the equipment easily, unsatisfied test requirement, influence the experimental accuracy of salt fog.

Therefore, the top cover of the equipment is designed into a cone top structure with a smooth inner wall, a plurality of small water drops are attached to the inner wall of the cone top along with continuous spraying of the salt spray nozzle, and after the small water drops are gathered into a large water drop, the large water drop slides to the side wall of the box body along the inside of the cone top under the action of self gravity and cannot drop to a test sample below the cone top. However, after the salt spray equipment is used for a period of time, local abrasion, corrosion or oil stain adhesion and the like are easy to occur on the inner wall of the cone top to form an unclean area, so that large water drops are formed, the water drops are more easily adhered to the unclean area and are gathered into large water drops in advance in the process of sliding down along the inner wall of the cone top, and the large water drops vertically fall under the action of self gravity and fall onto a test sample to influence the accuracy of a salt spray test.

SUMMERY OF THE UTILITY MODEL

In order to solve the salt fog experiment, big drop of water gathers in advance on the not clean district of awl top inner wall and drips on test sample, influences the technical problem of the experimental accuracy of salt fog, the utility model provides a salt fog test device.

The utility model adopts the specific scheme that the salt spray test device comprises a box body and a box cover positioned above the box body, wherein a salt spray nozzle positioned in the center of the box body and two collecting funnels used for acquiring the salt spray sedimentation amount are arranged in the box body, the two collecting funnels are symmetrically distributed on two sides of the salt spray nozzle, a water absorption mechanism and a wringing roller which is positioned on two sides of the box cover and has the same width with the box cover are arranged on the box cover, and the wringing roller deviates from the collecting funnels and is positioned right above a sample placing area used for placing a sample; the water absorption mechanism comprises a water absorption element and a handle, the water absorption element is located in the box cover, the handle is located outside the box cover, a first magnet is arranged in the water absorption element, a second magnet matched with the first magnet is arranged in the handle, the handle drives the water absorption element to slide along the inner top wall of the box cover to absorb adhered liquid drops, and water in the water absorption element is extruded out through the water squeezing roller.

As an optimized scheme of the salt spray test device, a water receiving box parallel to the water squeezing roller is arranged in the box body below the water squeezing roller, the water receiving box is located between the collecting funnel and the inner wall of the box body, and the water receiving box is externally connected with a water guide pipe extending out of the box body.

As another optimization scheme of the salt spray test device, a water squeezing area is formed in an area where the water absorbing element is contacted with the water squeezing roller, and the water squeezing area is completely positioned right above the water receiving box, so that water squeezed out of the water squeezing area completely falls into the water receiving box.

As another optimization scheme of the salt spray test device, the water receiving box and the water absorbing element are both in a strip shape, and the length of the water receiving box is not less than that of the water absorbing element.

As another optimization scheme of the salt spray test device, the box cover is rectangular, and the length of the water absorption element is consistent with the width of the inner top wall of the box cover.

As another optimization scheme of the salt spray test device, a waterproof rubber sleeve wrapped on the first magnet is further arranged between the first magnet and the water absorption element.

As another optimization scheme of the salt spray test device, the distance from the bottom surface of the water absorbing element to the inner top wall of the box cover is larger than the distance between the outer wall of the wringing roller and the inner top wall of the box cover.

As another optimization scheme of the salt spray test device, the water absorption element is water absorption sponge or cotton cloth.

As another optimization scheme of the salt spray test device, the bottom of the collecting funnel is connected with a collecting pipe, and a scale layer is arranged on the collecting pipe.

As another optimization scheme of the salt spray test device, the water absorption mechanism is externally connected with a driving mechanism for driving the water absorption mechanism to reciprocate along the box cover, and in the reciprocating movement process of the water absorption mechanism, the water absorption and extrusion of the inner top wall of the box cover are realized.

Compared with the prior art, the utility model following beneficial effect has:

1. the salt spray test device drives the water absorption element to slide on the inner wall of the box cover through the handle, water gathered on the inner wall of the box cover is absorbed into the water absorption element, then the water absorption element is driven to slide to the water squeezing roller through the handle, water in the water absorption element is squeezed out, the water squeezing roller is positioned at two sides of the inner cavity of the box cover, the squeezed water drops in a preset area, the preset area deviates from a sample placing area and a collecting port of the collecting funnel, and the squeezed water can be prevented from dropping on a test sample and in the collecting funnel to influence the accuracy of a test result;

2. in order to prevent the overlong continuous test time, the salt spray test device leads the inner top wall of the box cover to gather more water and leads the water extruded by the water squeezing roller to be too much, and the water is easy to splash onto a test sample, a water receiving box is arranged below the water squeezing roller, and is connected with a water guide pipe extending out of the test box body, and the water guide pipe leads the water in the water receiving box out in time;

3. salt fog test device, the component demountable installation that absorbs water is on first magnet, the washing or the change of the component that absorbs water of being convenient for, and then the life of extension mechanism that absorbs water reduces the use cost of equipment.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged partial schematic view of FIG. 1;

FIG. 3 is a top view of the case cover;

in the drawings: 1. the device comprises a box body, 101, a salt spray nozzle, 102, a collecting funnel, 1021, a collecting pipe, 2, a box cover, 3, a water absorbing mechanism, 301, a water absorbing element, 302, a handle, 303, a first magnet, 3031, a rubber sleeve, 304, a second magnet, 4, a water squeezing roller, 5, a water receiving box, 501, a water guide pipe, 6, a Z-shaped handle, 7, a heating wire, 8, an isolation net, 9, a sample placing area, 10, a brine box, 11 and a controller.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the following embodiments, and the parts of the present invention not described and disclosed in detail in the following embodiments should be understood as the prior art known or should be known to those skilled in the art, such as the driving mechanism for driving the water absorbing mechanism 3 to reciprocate, the controller 11 for controlling the frequency and speed of the driving mechanism movement and the temperature in the box 1.

As shown in fig. 1, the prior art discloses a salt spray test device, which includes a box 1 and a box cover 2 located above the box 1, wherein a controller 11 is disposed outside the box 1, and the controller 11 belongs to the common technology in the art and will not be described in detail herein. The collection funnel 102, the salt spray nozzle 101, the sample placing area 9, the separation net 8, the heating wire 7 and the brine tank 10 are arranged in the box body 1, the collection funnel 102 is used for obtaining the sedimentation amount of salt spray sprayed out of the salt spray nozzle 101, the salt spray nozzle 101 sprays salt solution absorbed from the brine tank 10 into the box body 1 to form fine liquid drops, the fine liquid drops on the sample placing area 9, and the heating wire 7 heats the box body 1 to keep the temperature inside the box body constant. And the salt spray nozzle 101 is located at the center of the box body 1, and the two collecting funnels 102 are symmetrically distributed at two sides of the salt spray nozzle 101.

Different from the prior art, as shown in fig. 1, 2 and 3, a water absorbing mechanism 3 and two parallel wringing rollers 4 are arranged on a box cover 2, two ends of each wringing roller 4 extend to the side wall of the box cover 2, so that the wringing rollers 4 are rotatably installed on the box cover 2, and the wringing rollers 4 are always positioned below the water absorbing mechanism 3. The water absorbing mechanism 3 comprises a water absorbing element 301 positioned in the box cover 2 and a pull handle 302 positioned outside the box cover 2, wherein a first magnet 303 is arranged in the water absorbing element 301, a second magnet 304 matched with the first magnet 303 is arranged in the pull handle 302, and the water absorbing mechanism 3 is adsorbed on the box cover 2 under the attraction action of the first magnet 303 and the second magnet 304. The handle 302 drives the water absorbing element 301 to slide along the inner top wall of the box cover 2, so as to absorb the water on the inner top wall of the box cover 2, and when the water slides to the water squeezing roller 4, the water in the water absorbing element 301 is squeezed out. And the wringing roller 4 is deviated from the collection funnel 102 and directly above the sample placing area 9 for placing the sample, the water squeezed by the wringing roller 4 can be prevented from falling into the collection funnel 102 or on the sample in the sample placing area 9.

As shown in fig. 1, in order to prevent the water squeezed from the squeeze roller 4 from falling to the box 1 and splashing to the sample placing area 9, a water receiving box 5 parallel to the squeeze roller 4 is arranged below the squeeze roller 4, the water receiving box 5 is used for receiving the water squeezed by the squeeze roller 4, and in order to prevent the water receiving box 5 from shaking, the water receiving box 5 is directly fixed on the inner wall of the box 1 through bolts. The area where the water absorbing element 301 and the wringing roller 4 are in contact forms a wringing area, and the wringing area is completely positioned right above the water receiving box 5, so that water squeezed out of the wringing area completely falls into the water receiving box 5. In order to ensure that the water receiving box 5 does not influence the collection funnel 102 to normally collect salt fog, the water receiving box 5 is positioned between the collection funnel 102 and the inner wall of the box body 1, the water receiving box 5 is externally connected with a water guide pipe 501 extending out of the box body 1, the water guide pipe 501 guides out water in the water receiving box 5 in time, the water receiving box 5 is prevented from overflowing after being filled with water, and the test continuity is influenced.

As shown in fig. 1, the water receiving box 5 and the water absorbing element 301 are both strip-shaped, and the length of the water receiving box 5 is not less than the length of the water absorbing element 301, so that all water absorbed by the water absorbing element 301 is received. Certainly, in order to quickly and completely absorb the water on the inner top wall of the box cover 2, the length of the water absorbing element 301 is consistent with the width of the inner top wall of the rectangular box cover 2, namely, the water absorbing element 301 moves from the left end to the right end of the inner top wall of the box cover 2 to completely absorb the water drops on the inner top wall of the box cover 2, and the working efficiency is improved. Wherein, the water absorption element 301 is water absorption sponge or cotton cloth with better water absorption effect.

As shown in fig. 2, in order to prevent the first magnet 303 from being corroded by salt fog, which affects the service life, a waterproof rubber sleeve 3031 is wrapped on the first magnet 303, so that the service life is prolonged.

As shown in fig. 1 and 2, in order to effectively squeeze out the water in the water absorbing element 301, the distance from the bottom surface of the water absorbing element 301 to the inner top wall of the box cover 2 is larger than the distance between the outer wall of the water squeezing roller 4 and the inner top wall of the box cover 2.

As shown in fig. 1, in order to allow a sample worker to directly obtain the sedimentation amount within a predetermined time of continuous operation, a collection tube 1021 having a scale layer is connected to the bottom of the collection funnel 102, and the sedimentation amount is directly read by the scale of the scale layer.

In order to reduce the labor intensity of the tester, the water absorbing mechanism 3 is externally connected with a driving mechanism which drives the water absorbing mechanism to reciprocate linearly along the box cover 2, the driving mechanism controls the reciprocating frequency and speed of the driving mechanism according to the gathering speed of water drops on the inner top wall of the box cover 2 through a controller 11, the driving mechanism and the controller 11 are conventional technologies in the field and are not described in detail, and the water absorbing mechanism 3 absorbs and extrudes water on the inner top wall of the box cover 2 in the reciprocating process.

As shown in fig. 1 and 3, in order to prevent the water absorbing element 301 from being stuck when water is extruded, the water extruding roller 4 is rotatably arranged on the box cover 2, the water extruding roller 4 is externally connected with a Z-shaped handle, and the water extruding roller 4 is driven to rotate by the Z-shaped handle 6 to extrude the water in the water absorbing element 301.

Claims

1. The utility model provides a salt spray test device, includes box (1) and case lid (2) that are located box (1) top, is provided with in box (1) and is located salt spray nozzle (101) and two collection funnel (102) that are used for acquireing salt spray settlement volume of box (1) central authorities, and two collection funnel (102) symmetric distribution are in the both sides of salt spray nozzle (101), its characterized in that:

the box cover (2) is provided with a water absorption mechanism (3) and wringing rollers (4) which are positioned on two sides of the box cover (2) and have the same width with the box cover (2), and the wringing rollers (4) deviate from the collecting funnel (102) and are right above a sample placing area (9) for placing a sample; the water absorbing mechanism (3) comprises a water absorbing element (301) located in the box cover (2) and a handle (302) located outside the box cover (2), a first magnet (303) is arranged in the water absorbing element (301), a second magnet (304) matched with the first magnet (303) is arranged in the handle (302), the handle (302) drives the water absorbing element (301) to slide along the inner top wall of the box cover (2) to absorb adhered liquid drops, and water in the water absorbing element (301) is extruded out through the water extruding roller (4).

2. The salt spray test device of claim 1, wherein: a water receiving box (5) parallel to the wringing roller (4) is arranged in the box body (1) below the wringing roller (4), the water receiving box (5) is positioned between the collecting funnel (102) and the inner wall of the box body (1), and the water receiving box (5) is externally connected with a water guide pipe (501) extending out of the box body (1).

3. The salt spray test device of claim 2, wherein: the water squeezing area is formed in the contact area of the water absorbing element (301) and the water squeezing roller (4), and the water squeezing area is completely positioned right above the water receiving box (5), so that water squeezed out of the water squeezing area completely falls into the water receiving box (5).

4. The salt spray test device of claim 2, wherein: the water receiving box (5) and the water absorbing element (301) are both strip-shaped, and the length of the water receiving box (5) is not less than that of the water absorbing element (301).

5. The salt spray test device of claim 1, wherein: the box cover (2) is rectangular, and the length of the water absorption element (301) is consistent with the width of the inner top wall of the box cover (2).

6. The salt spray test device of claim 1, wherein: and a waterproof rubber sleeve (3031) wrapped on the first magnet (303) is also arranged between the first magnet (303) and the water absorbing element (301).

7. The salt spray test device of claim 1, wherein: the distance between the bottom surface of the water absorbing element (301) and the inner top wall of the box cover (2) is larger than the distance between the outer wall of the wringing roller (4) and the inner top wall of the box cover (2).

8. The salt spray test device of claim 1, wherein: the water absorbing element (301) is water absorbing sponge or cotton cloth.

9. The salt spray test device of claim 1, wherein: the bottom of the collecting funnel (102) is connected with a collecting pipe (1021), and a scale layer is arranged on the collecting pipe (1021).

10. The salt spray test device of claim 1, wherein: the water absorption mechanism (3) is externally connected with a driving mechanism for driving the water absorption mechanism to reciprocate along the box cover (2), and in the process of reciprocating movement of the water absorption mechanism (3), the water on the inner top wall of the box cover (2) is absorbed and extruded.