Filter screen combination structure

Abstract

The utility model discloses a filter screen combination structure which comprises a filter screen support, a clamping block I for clamping an air inlet of an electric appliance is arranged on the filter screen support, a filter cover plate is arranged on the inner side of the filter screen support, a plurality of air inlet holes are formed in the filter cover plate, and a secondary filter screen is arranged on the outer side of the filter screen support. And the secondary filter screen is movably clamped on the filter screen bracket. According to the filter screen combined structure, the clamping blocks are clamped at the air inlets of electrical products such as a blower and an air comb of equipment, the corresponding clamping grooves are formed in the air inlets of the electrical products for corresponding butt joint connection, the function of the filtering function of the corresponding electrical products is achieved, double-protection filtering is achieved by arranging the second-stage filter screen, and the filtering effect is effectively improved; and the secondary filter screen is movably clamped on the filter screen bracket, so that multiple types of secondary filter screens with different mesh density can be selectively adjusted to form different degrees of protection effects on the premise of various occasion requirements, the flexibility is good, and the actual filtering effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of filter components for air inhalation, in particular to a filter screen combination structure. Background Art

[0002] Among existing household appliances, commonly used handheld electrical tools such as hair dryers and combs require a large amount of air to circulate inside and outside the appliance during the operation of the appliance. In this process, the air enters and flows out. In order to protect the internal functional structure of the appliance and the working stability of the circuit board, when the appliance is turned on, it is necessary to ensure that particulate dust and other debris, hair, etc. can be effectively filtered out of the appliance and do not enter, contact, or adhere to the internal structure of the appliance.

[0003] Existing filtering structures such as hair dryers and combs often simply set multiple plastic or metal filtering holes at the air inlet to form a filtering structure. The combination of filtering holes can filter long hair or other relatively large strips or granular objects to a certain extent, but small dust particles and short broken hair cannot be effectively filtered. In addition, its structural features are fixed and cannot be adjusted after installation, and its functional adaptability is relatively poor.

[0004] Therefore, a filtering function structure suitable for use in electrical appliances such as hair dryers and combs that require a large amount of air flow in and out can better filter out various external foreign matter and dust during the operation of the appliance, which is a technical problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a filter combination structure, which can effectively solve the problem of foreign matter or hair being sucked into the air inlet when electrical appliances on the existing market that require a large amount of circulating flowing air are working, thereby improving the practicality and reliability of the product technical solution and increasing the product's service life.

[0006] The following technical solution is provided to solve the problem: a filter combination structure, including a filter bracket, a clamping block I for clamping the air inlet of the appliance is provided on the filter bracket, a filter cover plate is provided on the inner side of the filter bracket, a plurality of air inlet holes are provided on the filter cover plate, a secondary filter is provided on the outer side of the filter bracket, and the secondary filter is movably clamped on the filter bracket.

[0007] As an improvement, the filter bracket is in the shape of a circular cylinder, a hollow frame is arranged in the middle of the filter bracket, a clamping block I is arranged on the inner edge of the outer end of the filter bracket, the secondary filter is a cylindrical structure sleeved on the outer surface of the filter bracket, the filter cover plate is a cylindrical structure corresponding to the filter bracket, the filter cover plate is arranged to be clamped on the inner side of the filter bracket, and a clamping block II is arranged on the inner side of the outer end of the filter cover plate to be clamped on the air inlet of the appliance.

[0008] As an improvement, the filter bracket includes a hollow frame and an end head, the hollow frame is movably clamped on the end head, an outer limiting step and an inner clamping step are provided at the connection between the end head and the hollow frame, and the inner surface of the hollow frame is inserted into the clamping step.

[0009] As an improvement, a snap-in groove is provided at the front end of the hollow frame, and a snap-in protrusion is provided at the rear end of the end head. When the hollow frame is connected to the end head, the snap-in protrusion is snapped into the snap-in groove.

[0010] As an improvement, the clamping groove is an L-shaped groove body with two sections, the outer section is longitudinal and the inner section is transverse.

[0011] As an improvement, the hollow frame is provided with a clip, and the clip is provided with a purification box.

[0012] As an improvement, the purification box is provided with an openable upper cover, and a handle is provided on the upper cover. The openable structure can conveniently replace the preparation in the purification box.

[0013] As an improvement, the secondary filter screen is provided with a double-layer sandwich structure, the sandwich structure is open at the front end and closed at the rear end. As an improvement, the outer end of the filter cover plate and the outer end of the filter screen bracket are both provided with an open port with a gradually increasing arc surface, so as to facilitate the smooth inflow of airflow.

[0014] As an improvement, the filter support, the secondary filter and the filter cover plate are all elliptical cylindrical.

[0015] The beneficial effects of the invention are as follows: the filter combination structure is clamped at the air inlet of electrical products such as hair dryers and combs through a clamping block, and the air inlet of the electrical products is provided with corresponding clamping grooves for corresponding docking connection to realize the filtering function of the corresponding electrical products, and a filter bracket and a secondary filter movably clamped on the filter bracket are provided, and the secondary filter is movably clamped to realize double protection filtration, which effectively improves the filtering effect; and the secondary filter is movably clamped on the filter bracket, and under the premise of various occasions, a plurality of secondary filters with different mesh densities can be selectively adjusted to form different degrees of protection effects, with good flexibility and better actual filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of each accessory of an embodiment of the utility model being disassembled horizontally and arranged in sequence;

[0018] Figure 2 yes Figure 1 The first step is to assemble the hollow frame and the end assembly structure diagram;

[0019] Figure 3 yes Figure 2 In the second step, assemble the secondary filter and install it into the hollow frame;

[0020] Figure 4 yes Figure 2 A structural diagram of the assembly positions of the components and the air inlet of the electrical appliance;

[0021] Figure 5 This is a schematic diagram showing the structure of the secondary filter on the side;

[0022] Figure 6 are two shapes of embodiments of the side view of the filter assembly structure;

[0023] Figure 7 yes Figure 2 Schematic diagram of the structure of the middle filter bracket in the assembled state.

[0024] The technical features corresponding to the accompanying drawings are as follows: 01-appliance air inlet, 1-clamping block I, 3-secondary filter, 4-clamping block II, 5-hollow spacer, 6-end, 7-limiting step, 8-clamping step, 9-clamping groove, 10-clamping protrusion, 11-clamping block, 12-purification box, 13-upper cover, 14-handle, 15-sandwich structure. DETAILED DESCRIPTION

[0025] like Figure 1-7 As shown, a filter assembly structure comprises a filter bracket, a clamping block Ⅰ1 for clamping an electrical appliance air inlet 01 is arranged on the filter bracket, a filter cover plate 2 is arranged on the inner side of the filter bracket, a plurality of air inlet holes are arranged on the filter cover plate, a secondary filter 3 is arranged on the outer side of the filter bracket, and the secondary filter is movably clamped on the filter bracket; the filter assembly structure is clamped at the air inlet of an electrical product such as a hair dryer, a comb, etc. of the equipment through the clamping block, and the air inlet of the electrical product is provided with a corresponding clamping groove for corresponding docking connection to realize the filtering function of the corresponding electrical product, and by providing a filter bracket and a secondary filter movably clamped on the filter bracket, the secondary filter is movably clamped to realize double protection filtering, which effectively improves the filtering effect; and the secondary filter is movably clamped on the filter bracket, and under the premise of various occasions, a plurality of secondary filters with different mesh densities can be selectively adjusted to form different degrees of protection effects, which has good flexibility and better actual filtering effect.

[0026] The filter bracket is in the shape of a circular cylinder, a hollow frame is arranged in the middle of the filter bracket, a snap-in block I is arranged on the inner edge of the outer end of the filter bracket, the secondary filter is a cylindrical structure sleeved on the outer surface of the filter bracket, the filter cover plate is a cylindrical structure corresponding to the filter bracket, the filter cover plate is arranged to be snap-connected to the inner side of the filter bracket, and a snap-in block II4 is arranged on the inner side of the outer end of the filter cover plate to be snap-connected to the air inlet of the electrical appliance; when in use, the filter bracket is held and the secondary filter is sleeved on the filter bracket, and then the assembly of the filter bracket and the secondary filter is embedded in the through vent of the electrical appliance, and then the filter cover plate is snapped into the inner side of the filter bracket, at this time, the snap-in block at the outer end of the filter bracket and the snap-in block at the outer end of the filter cover plate are snapped into the snap-in groove of the vent of the electrical appliance, the installation of the filter combination structure is completed and its circumferential rotation is restricted, so as to achieve the stability of the installation connection state during the working process.

[0027] The filter bracket includes a hollow frame 5 and an end head 6. The hollow frame is movably clamped on the end head. An outer limiting step 7 and an inner clamping step 8 are provided at the connection between the end head and the hollow frame. The inner surface of the hollow frame is inserted into the clamping step. During the connection process, the inner surface of the hollow frame is inserted into the clamping step to complete the connection between the hollow frame and the end head. At this time, the secondary filter is inserted into the hollow frame. The insertion process slides to the limiting step to maintain the overall connection stability and disassembly flexibility, facilitate the cleaning and replacement of spare parts, effectively guarantee the overall work quality, and improve its service life.

[0028] A snap-in groove 9 is provided at the front end of the hollow frame, and a snap-in protrusion 10 is provided at the rear end of the end head. When the hollow frame is connected to the end head, the snap-in protrusion is snapped into the snap-in groove; the snap-in groove is an L-shaped groove body with two sections, the outer section is longitudinal, and the inner section is transverse. When the snap-in protrusion is snapped into the snap-in groove, the snap-in protrusion is first snapped into the longitudinal outer section, and after snapping in, the end head is rotated to snap into the inner section transversely to complete the snapping, and the connection stability is better.

[0029] The hollow frame is provided with a card holder 11, and the card holder is provided with a purification box 12. The purification box selectively places desiccant or fragrance preparation to dry the air or make the blown air have a predetermined fragrance, and secondly, prevent the internal moisture and rust when it is stationary; the purification box is provided with an openable upper cover 13, and a handle 14 is provided on the upper cover. The openable structure can conveniently replace the preparation in the purification box.

[0030] The secondary filter screen is provided with a double-layer sandwich structure 15, which is open at the front end and closed at the rear end. The double-layer net can achieve better filtering effect on the basis of ensuring ventilation effect. The U-shaped cross-section structure with an open front end and a closed rear end realizes that the sandwich structure can embed the single-layer filter screen required by the sandwich as needed to realize secondary filtration, that is, the filtering effect can be flexibly adjusted according to the required filtering intensity.

[0031] The outer ends of the filter cover plate and the filter bracket are both provided with open ports with gradually increasing arc surfaces to facilitate smooth inflow of airflow.

[0032] Embodiment 2

[0033] like Figure 6 As shown, the difference from the first embodiment is that the filter support, the secondary filter and the filter cover plate are all elliptical cylindrical, which is more beautiful, and with the same longitudinal space, a larger air intake area can be achieved, and a larger air flow can be inhaled in the same time period.

[0034] In addition to the above preferred embodiments, the present invention has other implementation modes. Those skilled in the art can make various changes and modifications based on the present invention. As long as they do not deviate from the spirit of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A filter assembly structure, comprising a filter support, Features: The filter support is provided with a clamping block I (1) for clamping with the air inlet (01) of the electrical appliance, a filter cover plate (2) is provided on the inner side of the filter support, a plurality of air inlet holes are provided on the filter cover plate, a secondary filter (3) is provided on the outer side of the filter support, the secondary filter is movably clamped on the filter support, the filter support is in the shape of an annular cylinder, a hollow frame is provided in the middle of the filter support, a clamping block I is provided on the inner edge of the outer end of the filter support, the secondary filter is a cylindrical structure sleeved on the outer surface of the filter support, the filter cover plate is a cylindrical structure corresponding to the filter support, the filter cover plate is provided and clamped on the inner side of the filter support, a clamping block II (4) for clamping with the air inlet of the electrical appliance is provided on the inner side of the outer end of the filter cover plate, the hollow frame is provided with a clamping block (11), the clamping block is provided with a purification box (12), the purification box is provided with an openable upper cover (13), and a handle (14) is provided on the upper cover.

2. A filter assembly structure according to claim 1, Features: The filter screen support comprises a hollow frame (5) and an end head (6), wherein the hollow frame is movably clamped on the end head, and an outer limiting step (7) and an inner clamping step (8) are provided at the connection between the end head and the hollow frame, and the inner surface of the hollow frame is inserted into the clamping step.

3. A filter assembly structure according to claim 2, Features: The front end of the hollow frame is provided with a snap-in groove (9), and the rear end of the end head is provided with a snap-in protrusion (10). When the hollow frame is connected to the end head, the snap-in protrusion is snapped into the snap-in groove.

4. A filter assembly structure according to claim 3, Features: The clamping groove is an L-shaped groove body with two sections, the outer section is longitudinal and the inner section is transverse.

5. A filter assembly structure according to claim 1 or 2, Features: The secondary filter screen is provided with a double-layer sandwich structure (15), wherein the sandwich structure is open at the front end and closed at the rear end.

6. A filter assembly structure according to claim 1 or 2, Features: The outer end of the filter cover plate and the outer end of the filter support are both provided with an open port with a gradually increasing arc surface.

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