CN217059180U

CN217059180U - Dustproof test device

Info

Publication number: CN217059180U
Application number: CN202220848428.1U
Authority: CN
Inventors: 王超; 张茜; 郭淼
Original assignee: Shenyang Electric Drive Research Institute Co ltd
Current assignee: Shenyang Electric Drive Research Institute Co ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-07-26
Anticipated expiration: 2032-04-13

Abstract

The utility model relates to a dustproof test technical field provides a dustproof test device very much, including box and evacuation subassembly, the box upper end is equipped with the sealed lid that can open, and the box includes the cylindricality box and connects the toper box at cylindricality box lower extreme, is equipped with the test stand in the cylindricality box, and the bottom of toper box passes through the tube coupling circulating pump, and the exit end of circulating pump passes through the tube coupling in the upper segment of cylindricality box, and the evacuation subassembly includes the vacuum pump, the barometer, and the vacuum pump passes through pipeline and cylindricality box internal connection, and the barometer sets up on the pipeline between vacuum pump and cylindricality box. This novel dustproof ability that can detect the model machine under negative pressure state has improved experimental accuracy, to the equipment that needs strict seal, has good detection effect. And set up the scraping piece on the observation window, prevent to be covered with the dust on the observation window, can not observe the inside condition.

Description

Dustproof test device

Technical Field

The utility model relates to a dustproof test technical field provides a dustproof test device very much.

Background

For equipment which needs strong sealing performance and has serious influence on normal work of dust, a dust-proof test is necessary before formal use. The principle of the dustproof test is that dust is actively sprayed on a prototype, and the dust freely falls on the prototype, so that the dustproof performance of the shell of the prototype is tested. The existing dustproof test device can only detect whether dust can enter a prototype or not under normal atmospheric pressure, and sometimes, even if the prototype is not tightly sealed, the dust falling onto the prototype freely cannot enter the prototype, so that the test result is incorrect.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a dustproof test device can further detect the dustproof performance of model machine under the evacuation state.

The utility model discloses a realize like this, provide a dustproof test device, including box and evacuation subassembly, the box upper end is equipped with the sealed lid that can open, and the box includes the cylindricality box and connects the toper box at cylindricality box lower extreme, is equipped with the test stand in the cylindricality box, and the bottom of toper box passes through the tube coupling circulating pump, and the exit end of circulating pump passes through the upper segment of tube coupling at the cylindricality box, and the evacuation subassembly includes the vacuum pump, the barometer, and the vacuum pump passes through pipeline and cylindricality box internal connection, and the barometer setting is on the pipeline between vacuum pump and cylindricality box.

Preferably, on the cylindricality box, be equipped with observation window and scrape dirt structure, the observation window scrapes the dirt structure and includes rotates the handle and scrapes the dirt piece, rotates the handle and rotates, through connection on the cylindricality box of observation window lower extreme, scrapes the dirt piece and sets up inside the cylindricality box, is connected with rotating the handle, and the rotation range of scraping the dirt piece is within the observation window, and hugs closely with the observation window rotating the in-process.

Further preferably, a protective screen is arranged in the conical box body.

More preferably, a vibrator is provided outside the conical box body.

Further preferably, the vacuum pumping assembly further comprises a dust filter and an air flow meter, the dust filter is arranged on a pipeline between the air pressure gauge and the vacuum pump, the air flow meter is arranged on a pipeline between the dust filter and the vacuum pump, and a valve is further arranged on a pipeline between the air flow meter and the vacuum pump.

Further preferably, a detachable joint is arranged on a pipeline between the barometer and the cylindrical box body.

Further preferably, the device further comprises a controller, and the controller is in signal connection with the circulating pump and the vacuum pump respectively.

Compared with the prior art, the utility model has the advantages of:

the dustproof capability of the prototype can be detected under the negative pressure state, the test accuracy is improved, and the dustproof device has a good detection effect on equipment needing strict sealing. And set up the scraping piece on the observation window, prevent to be covered with the dust on the observation window, can not observe the internal situation.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and embodiments:

FIG. 1 is a schematic diagram of the overall structure of the novel application;

fig. 2 is a schematic view of a connection structure of the observation window and the dust scraping sheet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1, the utility model provides a dustproof testing device, including box 1 and evacuation subassembly, box 1 upper end is equipped with the sealed lid 2 that can open, box 1 includes the cylindricality box and connects the toper box at cylindricality box lower extreme, the cylindricality box is equipped with test stand 3, the toper box passes through pipe connection circulating pump 4 bottom, the exit end of circulating pump 4 passes through the upper segment of pipe connection at the cylindricality box, the evacuation subassembly includes vacuum pump 5, barometer 6, vacuum pump 5 passes through pipeline and cylindricality box internal connection, barometer 6 sets up on the pipeline between vacuum pump 5 and cylindricality box.

When utilizing this device to carry out the model machine dustproof test, open sealed lid 2, place the model machine on test stand 3, be connected with evacuation subassembly, sealed lid 2 is covered, can start circulating pump 4 and vacuum pump 5, circulating pump 4 attracts the top of the interior model machine of cylindrical box with dust (generally talcum powder) in the conical box through the pipeline, the dust is through the free fall, fall on the model machine, this moment, the inside of model machine shell is taken out to be the vacuum through the vacuum pump, can observe the negative pressure state through barometer 6, after experimental certain time, close this device, open sealed lid 2, take out the model machine, can open the model machine and detect inside whether get into the dust.

Referring to fig. 1 and 2, since the internal state needs to be observed during the operation, and the inside of the box is always in a dust-full state, which is easy to accumulate, as an improvement of the technical solution, an observation window 8 and an observation window dust scraping structure are arranged on the cylindrical box, the observation window dust scraping structure comprises a rotating handle 9 and a dust scraping sheet 10, the rotating handle 9 rotates and is connected to the cylindrical box at the lower end of the observation window 8 in a penetrating manner, the dust scraping sheet 10 is arranged inside the cylindrical box and is connected with the rotating handle 9, the rotating range of the dust scraping sheet 10 is within the observation window 8, and is tightly attached to the observation window 8 during the rotating process.

After the observation window 8 is full of dust, the rotation of the rotating handle 9 drives the dust scraping sheet 10 to scrape left and right on the inner surface of the observation window, so that the dust is scraped, and the inner state is conveniently observed.

In order to prevent a large amount of dust from accumulating at the bottom of the conical box body and causing pipeline blockage, as an improvement of the technical scheme, a protective screen 11 is arranged in the conical box body. Be equipped with a plurality of sieve meshes on the protection sieve 11, make things convenient for the dust to drop.

In order to further prevent dust accumulation from blocking the pipeline, as a technical improvement, a vibrator 12 is arranged outside the conical box body.

In order to perfect the vacuum pumping assembly, as an improvement of the technical scheme, the vacuum pumping assembly further comprises a dust filter 13 and an air flow meter 14, wherein the dust filter 13 is arranged on a pipeline between the barometer 6 and the vacuum pump 5, the air flow meter 14 is arranged on a pipeline between the dust filter 13 and the vacuum pump 5, and a valve 15 is further arranged on a pipeline between the air flow meter 14 and the vacuum pump 5.

When the sample machine is not tightly sealed, dust possibly enters the interior of the vacuum-pumping assembly along the pipeline after entering the interior of the sample machine, the dust can be effectively filtered through the dust filter, the dust is prevented from entering the interior of the air flow meter 14, the air flow is observed through the air flow meter 14, the pipeline is sealed after the vacuum pumping is finished through the valve 15, and the interior negative pressure state is kept.

As an improvement of the technical scheme, a detachable joint 7 is arranged on a pipeline between the barometer 6 and the cylindrical box body for facilitating disassembly, assembly, maintenance and movement.

In order to facilitate automatic control, the automatic control system further comprises a controller which is in signal connection with the circulating pump 4 and the vacuum pump 5 respectively. The controller can also be set as a control box, and the start and stop of the whole equipment can be controlled by the controller or the control box.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a dustproof testing device, a serial communication port, including box (1) and evacuation subassembly, box (1) upper end is equipped with sealed lid (2) that can open, box (1) includes the cylindricality box and connects the toper box at cylindricality box lower extreme, the cylindricality box is equipped with test stand (3), the pipeline connection circulating pump (4) are passed through to the lower extreme of toper box, the upper segment of pipeline connection at the cylindricality box is passed through to the exit end of circulating pump (4), the evacuation subassembly includes vacuum pump (5), barometer (6), vacuum pump (5) are through pipeline and cylindricality box internal connection, barometer (6) set up on the pipeline between vacuum pump (5) and cylindricality box.

2. The dustproof testing device according to claim 1, wherein an observation window (8) and an observation window dust scraping structure are arranged on the cylindrical box body, the observation window dust scraping structure comprises a rotating handle (9) and a dust scraping sheet (10), the rotating handle (9) rotates and is connected to the cylindrical box body at the lower end of the observation window (8) in a penetrating mode, the dust scraping sheet (10) is arranged inside the cylindrical box body and is connected with the rotating handle (9), and the rotating range of the dust scraping sheet (10) is within the observation window (8) and is tightly attached to the observation window (8) in the rotating process.

3. Dust testing apparatus according to claim 1, characterized in that within the conical box, a protective screen (11) is provided.

4. Dust testing device according to claim 1, characterized in that outside the conical box, a vibrator (12) is provided.

5. Dust testing device according to claim 1, wherein the evacuation assembly further comprises a dust filter (13) and an air flow meter (14), the dust filter (13) is arranged in the line between the barometer (6) and the vacuum pump (5), the air flow meter (14) is arranged in the line between the dust filter (13) and the vacuum pump (5), and a valve (15) is arranged in the line between the air flow meter (14) and the vacuum pump (5).

6. Dust testing device according to claim 1, characterized in that a detachable joint (7) is provided on the tubing between the barometer (6) and the cylindrical box.

7. The dust-proof test device according to claim 1, further comprising a controller in signal connection with the circulation pump (4) and the vacuum pump (5), respectively.