Filtering device for on-site construction of dry powder paint

Abstract

The utility model provides a filter device for dry powder paint site construction, which comprises a liquid collecting barrel, a filter head and a screen brushing mechanism, the filter head comprises a filter tank, a filter screen arranged at the bottom of the filter tank and a butt joint port connected to the bottom of the filter tank, and the butt joint port is in butt joint with a barrel opening of the liquid collecting barrel; the net brushing mechanism comprises a stirring motor, a stirring paddle driven by the stirring motor and bristles arranged at the bottom of blades of the stirring paddle, a cross beam is arranged at an opening of the filter tank, the stirring motor is mounted on the cross beam, and the bristles are attached to the net surface of the filter net. The filtering device for on-site construction of the dry powder paint has the advantages of being scientific in design, small in size, convenient to transfer and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of coating construction, in particular to a filtering device for on-site construction of dry powder paint. Background Art

[0002] During the construction of dry powder paint, water needs to be added on-site to stir it to form a turbid liquid, which is then filtered to remove large particles. The traditional filtering method is to use gauze for manual filtering, which is cumbersome to operate. To this end, the applicant designed a portable dry powder paint filtering device in patent application number 202120598076.4. It rotates the cylindrical filter screen by a handle and uses centrifugal force to filter the turbid liquid. Compared with traditional manual operation, it is more convenient, but the construction site needs to be constantly moved during on-site construction. Due to the large size of the filtering device, it is not easy to move.

[0003] In order to solve the above problems, people have been seeking an ideal technical solution. Summary of the Invention

[0004] The purpose of the utility model is to address the deficiencies of the prior art and thus provide a filtering device for on-site construction of dry powder paint which has scientific design, compact size, convenient transfer and strong practicality.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a filtering device for on-site construction of dry powder paint, comprising a liquid collecting barrel, a filter head and a brush net mechanism, the filter head comprising a filter pool, a filter net arranged at the bottom of the filter pool and a docking port connected to the bottom of the filter pool, the docking port being docked with the barrel mouth of the liquid collecting barrel; the brush net mechanism comprising a stirring motor, a stirring paddle driven by the stirring motor and bristles arranged at the bottom of the stirring paddle blades, the pool mouth of the filter pool being provided with a crossbeam, the stirring motor being installed on the crossbeam, and the bristles being in contact with the mesh surface of the filter net.

[0006] Based on the above, the filter screen is a steel screen with a 60-mesh aperture.

[0007] Based on the above, it also includes a micro negative pressure pump installed on the crossbeam, an air suction port is provided on the top of the barrel wall of the liquid collecting barrel, a sealing ring is provided on the outer wall of the docking port corresponding to the barrel mouth of the liquid collecting barrel, and the negative pressure port of the micro negative pressure pump is connected to the air suction port through a negative pressure pipe.

[0008] Based on the above, the bottom of the docking port is connected to a drainage pipe, the air suction port is arranged opposite to the upper part of the drainage pipe, and the bottom of the drainage pipe is provided with an oblique opening facing away from the air suction port.

[0009] Based on the above, the top of the liquid collecting barrel and the outer wall of the docking port are both conical.

[0010] The present invention has substantial features and progress compared to the prior art. Specifically, the present invention utilizes the filter head and the liquid collecting barrel to form a filtration system with a more compact structure. The filter pool is used to pour turbid dry powder paint liquid, which is filtered through the filter screen to remove large particles, and finally the filtrate is collected in the liquid collecting barrel. The brushing mechanism can scrape the mesh surface of the filter screen to prevent particles from settling and forming blockages, making the filtration smoother. It has the advantages of scientific design, compact size, easy transfer, and strong practicality.

[0011] Furthermore, by pumping negative pressure into the liquid collecting barrel through the micro negative pressure pump, the filtration speed can be accelerated, the sealing ring can ensure the sealing of the docking port and the barrel mouth, and the micro negative pressure pump is integrated on the crossbeam and does not take up additional space; the setting of the drainage tube can guide the filtrate to flow out from the oblique mouth to avoid being sucked into the air suction port; the top of the liquid collecting barrel and the outer wall of the docking port are both set to a cone shape to facilitate the docking of the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a structural diagram of a filtering device for on-site construction of dry powder paint.

[0013] In the figure: 1. Liquid collection barrel; 2. Filter tank; 3. Filter screen; 4. Docking port; 5. Stirring motor; 6. Stirring paddle; 7. Bristles; 8. Crossbeam; 9. Micro negative pressure pump; 10. Air extraction port; 11. Sealing ring; 12. Negative pressure tube; 13. Drainage tube; 14. Bevel port. DETAILED DESCRIPTION

[0014] The technical solution of the present utility model is further described in detail below through specific implementation methods.

[0015] like Figure 1 As shown, a filtering device for on-site construction of dry powder paint includes a liquid collecting barrel 1, a filter head and a brush net mechanism, the filter head includes a filter pool 2, a filter net 3 arranged at the bottom of the filter pool 2 and a docking port 4 connected to the bottom of the filter pool 2, the filter net 3 specifically adopts a steel mesh with a pore size of 60, and the docking port 4 is docked with the barrel mouth of the liquid collecting barrel 1. For the convenience of docking, the top of the liquid collecting barrel 1 and the outer wall of the docking port 4 are both conical.

[0016] The mesh brushing mechanism includes a stirring motor 5, a stirring paddle 6 driven by the stirring motor 5, and bristles 7 arranged at the bottom of the blades of the stirring paddle 6. The pool mouth of the filter pool 2 is provided with a crossbeam 8, and the stirring motor 5 is installed on the crossbeam 8. The bristles 7 are in contact with the mesh surface of the filter mesh 3; by scraping the mesh surface of the filter mesh 3 with the bristles 7, large particles of matter can be prevented from clogging the mesh holes by deposition, making the liquid flow smoother.

[0017] In order to further speed up the filtration speed, a micro negative pressure pump 9 is installed on the crossbeam 8, and an air suction port 10 is provided on the top of the barrel wall of the liquid collecting barrel 1. A sealing ring 11 is provided on the outer wall of the docking port 4 corresponding to the barrel mouth of the liquid collecting barrel 1 to ensure that the two are sealed and docked. The negative pressure port of the micro negative pressure pump 9 is connected to the air suction port 10 through a negative pressure pipe 12; negative pressure is pumped into the liquid collecting barrel 1 by the micro negative pressure pump 9, and under the action of atmospheric pressure, the dry powder paint solution can pass through the filter 3 faster.

[0018] To prevent the filtrate from being sucked into the air suction port 10, a drainage tube 13 is connected to the bottom of the docking port 4. The air suction port 10 is arranged opposite the upper part of the drainage tube 13, and the bottom of the drainage tube 13 is provided with an oblique opening 14 facing away from the air suction port 10. After the filtrate is guided by the drainage tube 13, it flows out from the oblique opening 14 and away from the air suction port 10, thereby avoiding being sucked into the air suction port 10.

[0019] During specific use, the filter device is placed at the construction site, the filter pool 2 is docked with the barrel mouth of the liquid collecting barrel 1 through the docking port 4 to ensure that the docking point is sealed, the negative pressure pipe 12 is connected, and the dry powder paint solution is poured into the filter pool 2 from the pool mouth, and the micro negative pressure pump 9 and the stirring motor 5 are started. Negative pressure is generated in the liquid collecting barrel 1, and the dry powder paint solution passes through the filter mesh 3 under the action of atmospheric pressure, and large particles are filtered out. By scraping the mesh surface of the filter mesh 3 with bristles 7, the particles can be prevented from clogging the mesh holes by deposition, thereby increasing the filtration speed. After the filtration is completed, the negative pressure pipe 12 is slowly pulled out from the air suction port 10. After the air is vented, the filter head is removed.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and not to limit it; although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents; without departing from the spirit of the technical solution of the utility model, they should all be included in the scope of the technical solution for which protection is requested in the utility model.

Claims

1. A filter device for on-site construction of dry powder paint, characterized by: It includes a liquid collection barrel, a filter head and a brush net mechanism, the filter head includes a filter pool, a filter net arranged at the bottom of the filter pool and a docking port connected to the bottom of the filter pool, and the docking port is docked with the barrel mouth of the liquid collection barrel; the brush net mechanism includes a stirring motor, a stirring paddle driven by the stirring motor and bristles arranged at the bottom of the stirring paddle blades, the pool mouth of the filter pool is provided with a crossbeam, the stirring motor is installed on the crossbeam, and the bristles are in contact with the mesh surface of the filter net.

2. The filter device for on-site application of dry powder paint according to claim 1, characterized in that: The filter screen is a steel screen with a 60-mesh aperture.

3. The filter device for on-site application of dry powder paint according to claim 1 or 2, characterized in that: It also includes a micro negative pressure pump installed on the crossbeam, an air extraction port is provided on the top of the barrel wall of the liquid collection barrel, a sealing ring is provided on the outer wall of the docking port corresponding to the barrel mouth of the liquid collection barrel, and the negative pressure port of the micro negative pressure pump is connected to the air extraction port through a negative pressure pipe.

4. The filter device for on-site application of dry powder paint according to claim 3, characterized in that: The bottom of the docking port is connected to a drainage pipe, the air suction port is arranged opposite to the upper part of the drainage pipe, and the bottom of the drainage pipe is provided with an oblique opening facing away from the air suction port.

5. The filter device for on-site application of dry powder paint according to any one of claims 1, 2 and 4, characterized in that: The top of the liquid collecting barrel and the outer wall of the docking port are both conical.

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