Dustproof test box
By introducing a sieving component and solenoid valve control into the dustproof test chamber, the problem of the inability to adjust the fineness of talc powder was solved, and a more accurate dustproof test simulation was achieved.
Patent Information
- Application Number
- CN202422725763.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-08
AI Technical Summary
In existing dustproof test chambers, the fineness of talc cannot be adjusted as needed, making it impossible to simulate the particle size in the actual environment, resulting in inaccurate experimental results.
A dustproof test chamber was designed to adjust the particle size of talc powder through the cooperation of a sieving component and a solenoid valve. The chamber includes a vibrating motor for sieving and a solenoid valve for control, which can adjust the fineness of the talc powder within the test chamber.
It enables flexible adjustment of talc particle size, which can better match the actual environment and improve the accuracy and simulation effect of dustproof experiments.
Smart Images
Figure CN223461439U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to dustproof test box technical field especially relates to a dustproof test box. BACKGROUND
[0002] Dustproof test box is commonly known as sand dust test box, is by fan pushes certain concentration talcum powder to blow through test sample surface with certain flow rate, thereby evaluates the ability of these test samples (equipment) exposed to dry sand or full of dust atmosphere under the action of dust particle penetration effect, the ability of preventing sand grit's abrasion or blocking effect and the ability of whether can store and run.
[0003] When using dustproof test box to carry out dustproof test to test sample, usually is placed to test sample in test box inside, later through the centrifugal force of centrifugal fan in test box produces and blows talcum powder through pipeline through test sample surface.
[0004] And in dustproof test box, generally is to carry out dustproof experiment to product with a kind of talcum powder of degree of fineness, but in actual environment, the size of particle is not fixed, a single degree of fineness of particle cannot meet the influence of simulating actual use environment to product.
[0005] And the dustproof test box of the application is improved, the dustproof test box is endowed with new function, the degree of fineness of talcum powder blown by dustproof test box pipeline can be changed according to the need, and different particle talcum powder can also be used to carry out dustproof experiment on equipment, which is more suitable for actual use environment. INVENTION CONTENTS
[0006] In order to make up for the above shortcomings, the utility model provides a dustproof test box, aims at improving the problem of changing the degree of fineness of talcum powder blown in the internal pipeline of dustproof test box in prior art.
[0007] In order to achieve the above object, the utility model adopts the following technical scheme: a dustproof test box, comprising:
[0008] The cabinet is fixedly connected with a collecting box on the inner bottom wall, and the collecting box is communicated with a collecting portion at the top, which is used for collecting talcum powder;
[0009] The placing plate is fixedly connected to the inner side wall of the cabinet and is used for placing the product to be tested;
[0010] The screening portion is installed in the collecting box and is used for screening talcum powder;
[0011] The pipeline is communicated at the bottom of one side of the collecting box, and the other end of the pipeline penetrates through the side wall of the cabinet and extends into the cabinet, and the centrifugal fan is communicated in the middle of the pipeline and is used for conveying talcum powder;
[0012] A conveying pipe is communicated at the top of one side of the collecting box, and the other end of the conveying pipe is communicated with the top end of the pipeline.
[0013] A second electromagnetic valve is communicated at the top of the end of the pipeline close to the collecting box.
[0014] As a further description of the above technical solution:
[0015] The collecting part comprises a collecting hopper communicated with the top of the collecting box, and the top of the collecting hopper is fixedly connected to the inner side wall of the cabinet.
[0016] As a further description of the above technical solution:
[0017] The screening part comprises a vibrating motor fixedly connected to the outer side of the collecting box.
[0018] A slot is arranged in the inner side wall of the collecting box, and a fixing ring is slidably connected in the slot.
[0019] Two grooves are respectively arranged in the inner side walls of the fixing ring, and a protruding block is slidably connected in each of the grooves.
[0020] A filter screen is fixedly connected to one side of the protruding block.
[0021] As a further description of the above technical solution:
[0022] A cabinet cover is hingedly connected to the top front side of the cabinet, and an observation window is arranged in the front end of the cabinet cover.
[0023] As a further description of the above technical solution:
[0024] A through hole is arranged in the placing plate, so that the talc powder floating in the cabinet can fall into the collecting hopper through the through hole.
[0025] As a further description of the above technical solution:
[0026] The outer side wall of the protruding block is tightly attached to the inner side wall of the groove.
[0027] The utility model has the following beneficial effects:
[0028] The utility model discloses, open electromagnetic valve one closes electromagnetic valve two, and the connecting place of pipeline and collection box is closed, and the talc powder on the upper portion of collection box is drawn out and is sprayed to the inside of case through opening the conveying pipe, and closes electromagnetic valve two and opens electromagnetic valve one, and the talc powder on the bottom of collection box is drawn out and is sprayed to the inside of case through closing the conveying pipe and opening the pipeline, or opens two electromagnetic valves simultaneously, and the talc powder on the upper portion and lower portion of collection box enters the inside of pipeline and is sprayed to the inside of case simultaneously, and the fineness degree of talc powder particle in the inside of case is changed through the cooperation of above -mentioned structure. BRIEF DESCRIPTION OF DRAWINGS
[0029] Figure 1 It is the perspective view of the utility model;
[0030] Figure 2 It is the sectional view of the utility model case;
[0031] Figure 3 It is the sectional view of the utility model collection box;
[0032] Figure 4 It is the perspective view of the utility model filter plate.
[0033] LEGEND:
[0034] 1, case;2, lid;3, pipeline;4, conveying pipe;5, electromagnetic valve one;6, centrifugal fan;7, electromagnetic valve two;8, collection box;9, fixed ring;10, collection bucket;11, slotted;12, filter screen;13, placement plate;14, vibration motor;15, lug;16, recess. DETAILED DESCRIPTION
[0035] The technical scheme in the embodiments of the utility model will be apparently and completely described below in conjunction with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts fall within the protection scope of the utility model.
[0036] REFERENCE Figures 1-4 The utility model provides an embodiment: a dustproof test box, including case 1, the front end of case 1 is hinged with lid 2, and hand rotates lid 2 to realize closing case 1, prevent the talc powder floating in the inside of case 1 from leaking from the opening of case 1, and the inner side wall of case 1 is fixedly connected with placement plate 13, and through hole is set up on placement plate 13, and the inner bottom wall of case 1 is fixedly connected with collection box 8, and collection box 8 top is communicated with collection bucket 10, and collection box 8 one side bottom is communicated with pipeline 3, and the other end of pipeline 3 penetrates the side wall of case 1 and stretches into the upper portion of case 1, as shown in the drawing, and the middle part of pipeline 3 is communicated with centrifugal fan 6. Figure 2
[0037] When the dustproof test is needed for the electronic product, the box cover 2 is opened, and the electronic product is placed on the top of the placing plate 13, and then the centrifugal fan 6 is started, the talcum powder in the collecting box 8 is sucked into the pipeline 3 by the centrifugal force of the centrifugal fan 6, and then sprayed into the case 1 through the other end of the pipeline 3, so that the talcum powder floats in the case 1, and the dustproof effect of the electronic product is tested in the simulation of outdoor sand and dust weather.
[0038] The inner side wall of the collecting box 8 is provided with a slot 11, and the slot 11 is slidably connected with a fixing ring 9. The outer side wall of the fixing ring 9 is attached to the inner side wall of the slot 11, and there is enough friction between the two, so that the fixing ring 9 cannot easily slide in the slot 11. The inner side wall of the fixing ring 9 is provided with a groove 16 on both sides, and the groove 16 is slidably connected with a protrusion 15. The protrusion 15 is fixedly connected with a filter screen 12 on one side. The side wall of the collecting box 8 is fixedly connected with a vibration motor 14 (the vibration motor 14 is selected from the model YZU, and other models can also be used as long as they can realize vibration). The output end of the vibration motor 14 is connected with the bottom of the filter screen 12, and is used for vibrating the filter screen 12 up and down.
[0039] When the talcum powder floating in the case 1 enters the collecting box 8 through the collecting hopper 10, the vibration motor 14 is started to make the filter screen 12 in the collecting box 8 vibrate, so as to screen the talcum powder in the collecting box 8, and store the talcum powder with different fineness separately, that is, the talcum powder with relatively coarse granularity is retained on the upper part of the filter screen 12, and the talcum powder with relatively fine granularity falls to the bottom of the collecting box 8.
[0040] An opening is formed in the front end of the collecting box 8, and a cover plate is hinged in the opening. The opening can be used to take out the talcum powder. The collecting box 8 is of an open-top structure.
[0041] When it is needed to replace the talcum powder in the collecting box 8, the fixing ring 9 is pulled out of the slot 11, so that the talcum powder on the top of the collecting box 8 falls into the bottom of the collecting box 8. Then the cover plate is rotated to open the cover plate, and the talcum powder in the bottom of the collecting box 8 is taken out of the collecting box 8. Then the cover plate is rotated again to close the opening. Then the talcum powder with relatively fine granularity is poured into the bottom of the collecting box 8, the fixing ring 9 is inserted into the slot 11, and the talcum powder with relatively coarse granularity is poured into the top of the collecting box 8 from the collecting hopper 10, so as to realize the replacement of the talcum powder in the collecting box 8.
[0042] The pipeline 3 is communicated with the electromagnetic valve two 7 near the top of one end of the collection box 8, the pipeline 3 is communicated with the conveying pipe 4 between the electromagnetic valve two 7 and the centrifugal fan 6, the conveying pipe 4 is communicated with the outside upper part of the collection box 8 at the other end, the conveying pipe 4 is communicated with the electromagnetic valve one 5 near the one end of the collection box 8, the conveying pipe 4 is closed by closing the electromagnetic valve one 5, then the electromagnetic valve two 7 is opened, so that the centrifugal fan 6 can extract the talc powder with smaller particles at the bottom of the collection box 8 through the pipeline 3 and spray into the case 1, or the pipeline 3 is closed by closing the electromagnetic valve two 7, at this time, the suction force of the conveying pipe 4 is generated by the centrifugal force of the centrifugal fan 6, so that the talc powder with larger particles at the upper part of the collection box 8 is conveyed to the pipeline 3 through the conveying pipe 4 and sprayed into the case 1, or the electromagnetic valve one 5 and the electromagnetic valve two 7 are opened at the same time, so that the suction force of the pipeline 3 and the conveying pipe 4 is generated at the same time, so that the talc powder at the upper part and the lower part of the collection box 8 is conveyed into the pipeline 3 at the same time and sprayed into the case 1 after mixing, the fineness of the talc powder particles in the case 1 is changed by the cooperation of the above structure.
[0043] When the dustproof test of the electronic product is needed, the case 1 is opened by rotating the box cover 2, the electronic product needing the dustproof test is placed on the placing plate 13 at the top of the case 1, the talc powder with smaller particles is poured into the bottom of the collection box 8, then the fixing ring 9 is inserted into the slot 11, then the talc powder with larger particles is poured into the upper part of the collection box 8, and the case 1 is closed by rotating the box cover 2, the conveying pipe 4 is closed by closing the electromagnetic valve one 5, then the electromagnetic valve two 7 is opened, so that the centrifugal fan 6 can extract the talc powder with smaller particles at the bottom of the collection box 8 through the pipeline 3 and spray into the case 1;
[0044] The pipeline 3 is closed by closing the electromagnetic valve two 7, at this time, the suction force of the conveying pipe 4 is generated by the centrifugal force of the centrifugal fan 6, so that the talc powder with larger particles at the upper part of the collection box 8 is extracted and conveyed into the pipeline 3, then sprayed into the case 1 through the pipeline 3;
[0045] The electromagnetic valve one 5 and the electromagnetic valve two 7 are opened at the same time, so that the suction force of the pipeline 3 and the conveying pipe 4 is generated at the same time, so that the talc powder at the upper part and the lower part of the collection box 8 is conveyed into the pipeline 3 at the same time and sprayed into the case 1 after mixing, the fineness of the talc powder particles in the case 1 is changed by the cooperation of the above structure.
[0046] When the mixed talc powder with coarse particle size and fine particle size inside the cabinet 1 falls on the upper part of the collecting box 8 through the collecting hopper 10 due to its own weight, the vibration motor 14 is started to make the filter screen 12 inside the collecting box 8 vibrate, the talc powder inside the collecting box 8 is screened, the talc powder with fine particle size is separated and falls into the bottom of the collecting box 8 through the through holes of the screen, and the talc powder with coarse particle size is intercepted by the filter screen 12 and stored on the top of the collecting box 8.
[0047] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.
Claims
1. A dust test chamber characterized by: Comprising A machine box (1), the inner bottom wall of which is fixedly connected with a collecting box (8), the top of which is communicated with a collecting part for collecting talc powder; A placing plate (13) fixedly connected to the inner side wall of the machine box (1) for placing products to be tested; A screening part installed inside the collecting box (8) for screening talc powder; A pipeline (3) communicated at the bottom of one side of the collecting box (8), the other end of which penetrates through the side wall of the machine box (1) and extends into the machine box (1), and the middle part of which is communicated with a centrifugal fan (6) for conveying talc powder; A conveying pipe (4) communicated at the top of one side of the collecting box (8), the other end of which is communicated with the top end of the pipeline (3), and the middle part of which is communicated with an electromagnetic valve (5); An electromagnetic valve (7) communicated at the top of one end of the pipeline (3) close to the collecting box (8).
2. A dust test chamber according to claim 1, characterised in that: The collecting part comprises a collecting hopper (10) communicated at the top of the collecting box (8), and the top outer side of the collecting hopper (10) is fixedly connected to the inner side wall of the machine box (1).
3. The dust test chamber of claim 1, wherein: The screening part comprises a vibrating motor (14) fixedly connected to the outer side of the collecting box (8); A slot (11) is formed in the inner side wall of the collecting box (8), and a fixing ring (9) is slidingly connected inside the slot (11); Two grooves (16) are respectively formed in the inner side walls of the fixing ring (9), and a protruding block (15) is slidingly connected inside each of the two grooves (16); A filter screen (12) is fixedly connected to one side of the protruding block (15).
4. The dust test chamber of claim 1, wherein: A box cover (2) is hingedly connected to the top front side of the machine box (1), and an observation window is formed in the front end of the box cover (2).
5. The dust test chamber of claim 1, wherein: A through hole is formed in the placing plate (13) to enable the talc powder floating in the machine box (1) to fall into the inside of the collecting hopper (10) through the through hole.
6. A dust test chamber according to claim 3, wherein: The outer side wall of the protruding block (15) is tightly attached to the inner side wall of the groove (16).