Filter screen for filtering various tiny particles

Abstract

The utility model discloses a filter screen for filtering various tiny particles, which comprises a filter screen frame, a sliding chute is arranged in the filter screen frame, a sliding strip is sleeved in the sliding chute in a sliding manner, one end of the sliding strip is fixedly connected with a support plate, an inner handle is arranged in the support plate, a left filter screen is fixedly adhered to the inner side surface of the support plate, and a right filter screen is fixedly adhered to the inner side surface of the support plate. According to the filter screen for filtering the various tiny particles, constraint on the supporting plate is separated by rotating the blocking piece, an inner handle is conveniently pulled outwards to drive the left filter screen or the middle filter screen or the right filter screen to be detached, the force of the blocking piece for pressing the filter screen frame and the surface of the supporting plate can be adjusted by rotating a damping screw, and therefore the rotation damping performance of the blocking piece can be adjusted conveniently; the left filter screen, the middle filter screen or the right filter screen can be installed and fixed through the design of the sliding grooves and the sliding strips, normal use is prevented from being affected by lateral deviation, impurities in air can be filtered through the design of the middle filter screen, peculiar smells in the air can be removed, and the air quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a filtering net used for filtering a variety of tiny particles. Background Art

[0002] Particles in the air refer to solid particles or droplets suspended in the air. The particles are so small that they are difficult to identify with the naked eye, but there are still differences in size. Among them, particles with an aerodynamic diameter (hereinafter referred to as diameter) less than or equal to 10 microns are called inhalable particles (PM10); particles with a diameter less than or equal to 2.5 microns are called fine particles (PM2.5), also called inhalable particles; particles with a diameter less than or equal to 0.1 microns are called ultrafine particles (PM0.1). These ultrafine particles in the atmosphere account for up to 84% of the total number of particles suspended in the atmosphere. In the past 15 years, due to the development of nanotoxicology, scientists have discovered that ultrafine particles with a particle size of less than 100 nanometers have some biological toxicological mechanisms different from those of large-sized particles, and have potential health hazards to the human body. Therefore, WHO has called on scientists and governments to give priority to the study of the biological toxicology of ultrafine particles in the atmosphere. Research institutions in the United States and Europe have also continued to list ultrafine particles as key research objects in their annual health risk assessment reports on atmospheric particulate matter. Ultrafine particles in the air can stay in the atmosphere for a long time and can enter the body through breathing and accumulate in the trachea or lungs. Many studies have confirmed that ultrafine particles in the air can cause damage to the respiratory and cardiovascular systems, leading to asthma, lung cancer, cardiovascular disease, birth defects and premature death. For the purification of ultrafine particles in indoor air, it is the key to ensure indoor air quality to develop high-efficiency and low-resistance filter materials and components for filtering and removing ultrafine particles in the air.

[0003] At present, when the existing filter net is filtering, particles, dust and hair with larger diameters in the air are intercepted by the washed nylon net, and the washed nylon net can be reused by scrubbing. PM10, PM2.5 and PM0.1 particles with smaller diameters pass through the spunbond layer, electrostatic cotton layer, meltblown layer, electrostatic spinning nano membrane and substrate layer in turn. Among them, the fiber diameters of the spunbond layer, electrostatic cotton layer and meltblown layer are relatively large, ranging from 10 microns to 100 microns, which can filter PM10 and PM2.5 in the air. Particles with a diameter less than 0.1 micron rely on electrostatic spinning nano membrane filtration.

[0004] For example, a filter screen for filtering ultrafine particles in the air disclosed in the authorization number CN208771066U, the filter screen includes an outer frame and a filter element, characterized in that the outer frame is formed by folding moisture-proof and water-resistant paperboard inwardly to form an edge structure, the width of the outer frame folded inwardly to the center of the filter screen is 5-15 mm, and the filter element contains a group of sheet-like fiber filter materials, the fiber filter materials are formed by folding to form multiple rows of parallel folds in the shape of "M" or "W", the multiple rows of parallel folds are 1-5 mm apart, the folds are fixed by hot melt adhesive, and the hot melt adhesive strips are 1-5 mm apart, wherein the fiber filter material is stacked in sequence by spunbond cloth, electrostatic cotton, melt-blown cloth, electrostatically spun nanofilm, and substrate layers, the electrostatically spun nanofilm is an ultrafine nanofiber membrane, the ultrafine nanofiber membrane is composed of fibers with a diameter of 10-2000 nanometers, and the electrostatically spun nanofilm weighs 5-100 micrograms. However, such a filtering device is not convenient for quickly removing the filter screen for cleaning, replacement, and maintenance.

[0005] It can be seen from the solutions disclosed in the above-mentioned existing patent documents that it is not convenient to quickly remove the left filter, the middle filter or the right filter. Therefore, it is necessary to improve the existing technology. Utility Model Content

[0006] The utility model aims to provide a filter screen for filtering a variety of tiny particles, so as to solve the problem that it is inconvenient to quickly remove the left filter screen, the middle filter screen or the right filter screen.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filter screen for filtering a variety of tiny particles, including a filter screen frame, a slide groove is provided inside the filter screen frame, a slide bar is slidably sleeved inside the slide groove, one end of the slide bar is fixedly connected to a support plate, an inner handle is provided inside the support plate, a left filter screen is fixedly adhered to the inner side surface of the support plate, a damping screw is threadedly connected to the inside of one side of the filter screen frame, a baffle is sleeved on the outer side of the damping screw, a middle filter screen is sleeved inside the filter screen frame, and a right filter screen is sleeved inside the filter screen frame.

[0008] Preferably, the left filter is sleeved inside the filter frame, and the left filter is fixedly adhered to one side of the slide bar. The baffle is rotated to release the restraint on the support plate, so that the left filter, the middle filter or the right filter can be removed conveniently by pulling the inner handle outward.

[0009] Preferably, the inner part of the filter frame is sleeved on the support plate, the inner side of the baffle is close to the support plate, the inner side of the support plate is glued to the middle filter, and the inner side of the support plate is glued to the right filter. By turning the damping screw, the force with which the baffle presses the filter frame and the support plate surface can be adjusted to adjust the rotation damping of the baffle.

[0010] Preferably, one side of the slide bar is fixedly adhered to the middle filter, and one side of the slide bar is fixedly adhered to the right filter. The design of the slide groove and the slide bar can guide the left filter, the middle filter or the right filter to be installed and fixed to prevent lateral deviation from affecting normal use.

[0011] Preferably, the left filter is made of glass fiber material, the middle filter is made of activated carbon material, and the right filter is made of synthetic fiber filter cotton material. The design of the middle filter can filter impurities in the air, remove odors in the air, and improve air quality.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The left filter is sleeved inside the filter frame of the utility model, and the left filter is fixed and adhered to one side of the slide bar. The baffle is rotated to break away from the restraint of the support plate, so that the inner handle is pulled outward to facilitate the removal of the left filter, the middle filter or the right filter.

[0014] 2. The filter frame of the utility model is internally sleeved with a support plate, the inner side of the baffle is in close contact with the support plate, the inner side of the support plate is adhered to the middle filter, and the inner side of the support plate is adhered to the right filter. By turning the damping screw, the strength with which the baffle presses the filter frame and the surface of the support plate can be adjusted so as to adjust the damping of the baffle rotation.

[0015] 3. The utility model has one side of the slide bar fixedly adhered to the middle filter, and one side of the slide bar fixedly adhered to the right filter. The design of the slide groove and the slide bar can guide the installation and fixation of the left filter, the middle filter or the right filter to prevent lateral deviation from affecting normal use.

[0016] 4. The left filter of the utility model is made of glass fiber material, the middle filter is made of activated carbon material, and the right filter is made of synthetic fiber filter cotton material. The design of the middle filter can filter impurities in the air, remove odors in the air, and improve air quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is an enlarged view of point A of the utility model;

[0019] Figure 3 It is the left view of the filter screen frame of the utility model.

[0020] In the figure: 1 filter frame, 11 slide groove, 12 slide bar, 13 support plate, 14 inner handle, 15 left filter, 16 damping screw, 17 baffle, 18 middle filter, 19 right filter. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] See also Figure 1-3 A filter for filtering a variety of tiny particles shown in the figure includes a filter frame 1, a slide groove 11 is arranged inside the filter frame 1, a slide bar 12 is slidably sleeved inside the slide groove 11, one end of the slide bar 12 is fixedly connected to a support plate 13, an inner handle 14 is arranged inside the support plate 13, a left filter 15 is fixedly adhered to the inner side surface of the support plate 13, a damping screw 16 is threadedly connected inside one side of the filter frame 1, a baffle 17 is sleeved on the outer side of the damping screw 16, a middle filter 18 is sleeved inside the filter frame 1, and a right filter 19 is sleeved inside the filter frame 1.

[0024] In order to facilitate the disassembly, assembly, cleaning and replacement of the left filter 15, the middle filter 18 or the right filter 19, the left filter 15 is sleeved inside the filter frame 1, and the left filter 15 is fixedly adhered to one side of the slide bar 12. By rotating the baffle 17, the support plate 13 is released, and the inner handle 14 is conveniently pulled outward to drive the left filter 15, the middle filter 18 or the right filter 19 to be removed. The support plate 13 is sleeved inside the filter frame 1, and the inner side surface of the baffle 17 is tightly attached to the support plate 13. The inner side surface of the support plate 13 is adhered to the middle filter 18, and the inner side surface of the support plate 13 is adhered to the right filter 19. By rotating the damping screw 16, the force with which the baffle 17 presses the surface of the filter frame 1 and the support plate 13 can be adjusted so as to adjust the rotation damping of the baffle 17.

[0025] In this embodiment, by rotating the baffle 17 to release the restraint on the support plate 13, the inner handle 14 can be pulled outward to facilitate the removal of the left filter 15, the middle filter 18 or the right filter 19. By rotating the damping screw 16, the force with which the baffle 17 presses the filter frame 1 and the surface of the support plate 13 can be adjusted to adjust the rotation damping of the baffle 17.

[0026] Example 2

[0027] See also Figure 1-3, this embodiment further explains Example 1. The figure shows a filter for filtering a variety of tiny particles, including a filter frame 1, a slide groove 11 is provided inside the filter frame 1, a slide bar 12 is slidably sleeved inside the slide groove 11, one end of the slide bar 12 is fixedly connected to a support plate 13, an inner handle 14 is provided inside the support plate 13, a left filter 15 is fixedly adhered to the inner side surface of the support plate 13, a damping screw 16 is threadedly connected inside one side of the filter frame 1, a baffle 17 is sleeved on the outer side of the damping screw 16, a middle filter 18 is sleeved inside the filter frame 1, and a right filter 19 is sleeved inside the filter frame 1.

[0028] In order to remove odor in the air, a middle filter 18 is fixedly adhered to one side of the slide bar 12, and a right filter 19 is fixedly adhered to one side of the slide bar 12. The design of the slide groove 11 and the slide bar 11 can guide the left filter 15, the middle filter 18 or the right filter 19 to be installed and fixed to prevent lateral deviation from affecting normal use. The left filter 15 is made of glass fiber material, the middle filter 18 is made of activated carbon material, and the right filter 19 is made of synthetic fiber filter cotton material. The design of the middle filter 18 can filter impurities in the air, remove odor in the air, and improve air quality.

[0029] In this embodiment, the design of the slide groove 11 and the slide bar 11 can guide the left filter 15, the middle filter 18 or the right filter 19 to be installed and fixed to prevent lateral deviation from affecting normal use. The design of the middle filter 18 can filter impurities in the air, remove odors in the air, and improve air quality.

[0030] The filter screen used for filtering a variety of tiny particles can be released from the restraint of the support plate 13 by rotating the baffle 17, so that the inner handle 14 can be pulled outward to facilitate the removal of the left filter screen 15, the middle filter screen 18 or the right filter screen 19. The strength with which the baffle 17 presses the filter screen frame 1 and the surface of the support plate 13 can be adjusted by rotating the damping screw 16, so as to adjust the rotation damping of the baffle 17. The design of the slide groove 11 and the slide bar 11 can guide the installation and fixation of the left filter screen 15, the middle filter screen 18 or the right filter screen 19 to prevent lateral deviation from affecting normal use. The design of the middle filter screen 18 can filter impurities in the air, remove odors in the air, and improve air quality.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter screen for filtering a variety of tiny particles, comprising a filter screen frame (1), characterized in that: The filter screen frame (1) is provided with a slide groove (11) inside, and a slide bar (12) is slidably sleeved inside the slide groove (11), one end of the slide bar (12) is fixedly connected to a support plate (13), an inner handle (14) is provided inside the support plate (13), and a left filter screen (15) is fixedly adhered to the inner side surface of the support plate (13), a damping screw (16) is threadedly connected inside one side of the filter screen frame (1), and a baffle (17) is sleeved on the outer side of the damping screw (16), a middle filter screen (18) is sleeved inside the filter screen frame (1), and a right filter screen (19) is sleeved inside the filter screen frame (1).

2. A filter screen for filtering a variety of tiny particles according to claim 1, characterized in that: The left filter (15) is sleeved inside the filter frame (1), and one side of the slide bar (12) is fixedly adhered to the left filter (15).

3. A filter screen for filtering a variety of tiny particles according to claim 1, characterized in that: The filter screen frame (1) is internally sleeved with a support plate (13), the inner side surface of the blocking plate (17) is tightly attached to the support plate (13), the inner side surface of the support plate (13) is adhered to the middle filter screen (18), and the inner side surface of the support plate (13) is adhered to the right filter screen (19).

4. A filter screen for filtering a variety of tiny particles according to claim 1, characterized in that: A middle filter screen (18) is fixedly adhered to one side of the slide bar (12), and a right filter screen (19) is fixedly adhered to one side of the slide bar (12).

5. A filter screen for filtering a variety of tiny particles according to claim 1, characterized in that: The left filter (15) is made of glass fiber material, the middle filter (18) is made of activated carbon material, and the right filter (19) is made of synthetic fiber filter cotton material.

Images