In-embedded insect-proof air curtain machine and casement door

Abstract

The application discloses an embedded insect-proof air curtain machine and a vertical hinged door, which comprises a body, an air inlet and an air outlet are arranged on the body, a mask plate is hingedly connected to the air inlet, a first air inlet grid is arranged on the mask plate, and a first dustproof block is arranged on the inner side of the mask plate and is attached to the first air inlet grid. Wherein: the first air inlet grid is arranged by linearly arrayed grid bars, the end of the grid bar is a rounded structure, and the end of the rounded structure and the included angle of the first dustproof block form a cavity groove; the grid bar comprises an air channel, the air channel comprises at least two inlet ports, and the inlet ports are connected to the cavity groove. The embedded insect-proof air curtain machine and the vertical hinged door provided by the application have the technical purposes of simple structure, full use of air flow power to realize self-cleaning effect of the first dustproof block to a certain extent, reduced frequency of manual cleaning, and increased service life of the first dustproof block.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air curtain machines, in particular to an embedded insect-proof air curtain machine and a vertical hinged door. BACKGROUND

[0002] Air curtain machines are commonly used at entrances or exits of public places with high human flow density, such as shopping malls, hospitals, and office buildings. They use high-speed airflow to form a barrier, separating the indoor and outdoor environments, and preventing outdoor oil smoke, odors, and dust from entering the indoor environment. When people pass through the high-speed airflow, the dust they carry can also be cleaned, effectively blocking outdoor dust from entering the indoor environment and maintaining indoor cleanliness.

[0003] Referring to the publication (announcement) No. CN112146226A, published (announced) on December 29, 2020, a portable air curtain machine is disclosed, which includes a casing and a mounting base. The casing is rotatably mounted on the mounting base. The mounting base includes a bottom plate, a first connecting plate, and a second connecting plate. The bottom plate is parallel to the axis of the fan wheel, and the first connecting plate is perpendicular to the axis. A rotating member is provided between the first connecting plate and the second connecting plate and the casing to achieve the rotational connection of the casing and the mounting base. The mounting base and the casing are connected by a fastening assembly to position and lock the rotating position of the casing relative to the mounting base, so that the direction of the strip-shaped air outlet is adjusted. The portable air curtain machine can be wall-mounted, floor-placed, or vertically installed, and the direction of the strip-shaped air outlet can be adjusted to achieve the versatility of the installation method of the portable air curtain machine.

[0004] In the prior art including the above-mentioned patent, the air curtain machine is a relatively well-known technology. The mask plate is a separation net installed on the air inlet. When the fan wheel is driven to rotate, the airflow enters the air inlet and is discharged from the air outlet. When the airflow passes through the mask plate and enters the interior, it is blocked and retained on the mask plate by the dust blocking net on the mask plate. Therefore, workers need to regularly clean the dust blocking net on the mask plate to ensure its normal use. How to achieve self-cleaning of the dust blocking net to prolong its service life and reduce the frequency of human intervention for cleaning is expected to be well solved. SUMMARY

[0005] The purpose of the present application is to provide an embedded insect-proof air curtain machine and a vertical hinged door to solve the above problems.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] An embedded insect-proof air curtain machine includes a body, which includes an air inlet and an air outlet. A mask plate is hinged to the air inlet. A first air inlet grille net is provided on the mask plate, and a first dust-proof block is provided on the inner side of the mask plate to fit the first air inlet grille net. Wherein:

[0008] The first air inlet grid net is arranged by linear array of grid bars, the end of the grid bar is a rounded structure, and the end of the rounded structure forms a cavity slot with the included angle of the first dustproof block;

[0009] The grid bar includes an air channel, and the air channel includes at least two inlet ports connected to the cavity slot.

[0010] Preferably, the end of the grid bar away from the first dustproof block is an arc structure to form a parallel divided raised part and a smooth part.

[0011] Preferably, the smooth part is provided with an inner groove arranged close to the first dustproof block, the inner groove is an arc structure, and the port side is provided with an intercepting part arranged close to the first dustproof block, and the inlet port and the intercepting part are connected to the inner wall of the inner groove.

[0012] Preferably, the inner side of the mask plate is provided with a base assembly, the base assembly includes a second air inlet grid net and a second dustproof block, and the second dustproof block and the first dustproof block are kept at a predetermined distance to form a cavity.

[0013] Preferably, the base assembly includes a flexible plate attached to the side surface of the first dustproof block, the flexible plate is provided with a rectangular through slot arranged in a rectangular array, and the rectangular through slot is provided with a thin sheet with one end in contact with the inner wall thereof.

[0014] Preferably, the thin sheet includes a blade part and an arc wind shield, and the blade part is arranged at the arc top of the arc wind shield.

[0015] Preferably, the end of the blade part extends to the inside of the arc wind shield to form a vibrating sheet.

[0016] Preferably, the arc wind shield is provided with a perforation, and the blade part and the vibrating sheet are fixed in the perforation through the clamping points on the connecting part therebetween.

[0017] A vertical hinged door, the built-in insect wind curtain machine in the above scheme is used to send air to the vertical hinged door to form a wind screen.

[0018] In the above technical solution, the embedded insect-proof air curtain machine and the vertical hinged door provided by the application have the following beneficial effects: during the operation of the body, the airflow quickly passes through the first air inlet grid and forms low pressure at the cavity groove, thereby forming a stacking effect at the cavity groove, and the dust blocked by the first dust prevention block is partially stacked at the cavity groove. Due to the high-speed flow of the air duct airflow, the flow rate is greater than the air flow rate at the first air inlet grid, thereby generating a suction effect, that is, the garbage stacked at the cavity groove is sucked into the air duct through the inlet, and finally discharged to the outside through the air duct. The first dust prevention block is self-cleaned to a certain extent, the frequency of manual cleaning is reduced, and the service life of the first dust prevention block is increased. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0020] Figure 1 The overall structure schematic diagram provided by the embodiment of the present application is provided.

[0021] Figure 2 The structure schematic diagram of the mask plate in the open state provided by the embodiment of the present application is provided.

[0022] Figure 3 The structure schematic diagram of the mask plate provided by the embodiment of the present application is provided.

[0023] Figure 4 The exploded structure schematic diagram of the mask plate provided by the embodiment of the present application is provided.

[0024] Figure 5 The cross-sectional structure schematic diagram of the mask plate provided by the embodiment of the present application is provided.

[0025] Figure 6 The enlarged structure schematic diagram of A provided by the embodiment of the present application is provided.

[0026] Figure 7 The enlarged structure schematic diagram of B provided by the embodiment of the present application is provided.

[0027] Figure 8 The cross-sectional structure schematic diagram of the sheet provided by the embodiment of the present application is provided.

[0028] Explanation of reference signs:

[0029] 1, body; 2, mask plate; 3, first dustproof block; 4, first air inlet grille; 41, grille strip; 411, air channel; 412, raised portion; 413, smooth portion; 415, inlet; 5, cavity; 6, inner groove; 61, intercepting portion; 7, base assembly; 71, second dustproof block; 72, second air inlet grille; 73, flexible plate; 731, sheet; 732, blade portion; 7321, vibrating sheet; 733, arc-shaped windward cover; 74, mounting frame. DETAILED DESCRIPTION

[0030] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0031] As shown in Figures 1-8 An embedded insect-proof air curtain machine and a vertical sliding door, comprising a body 1, the body 1 comprising an air inlet and an air outlet, the air inlet being hingedly connected with a mask plate 2, the mask plate 2 being provided with a first air inlet grille 4, and the inner side of the mask plate 2 being provided with a first dustproof block 3 fitted to the first air inlet grille 21, wherein:

[0032] The first air inlet grille 4 is arranged in a linear array of grille strips 41, the end of the grille strip 41 being a rounded structure, and the end of the rounded structure and the first dustproof block 3 forming a cavity 5 at an included angle.

[0033] The grille strip 41 comprises an air channel 411, the air channel 411 comprising at least two inlets 415, the inlets 415 being connected to the cavity 5.

[0034] Specifically, the first dustproof block 3 in the embodiment is a low-density sponge block with a thickness of 0.3-0.5 mm or a high-density sponge with a thickness of 0.3-0.5 mm.

[0035] Further, in the above embodiment, the air inlet of the air channel 411 is connected to the air outlet of the body 1, that is, when the fan works, the air enters the air inlet of the body 1 and is discharged from the air outlet, and the air outlet of the body is vertically downward, so that the vertical sliding door forms a wind screen. During the process of air being discharged from the air outlet of the body 1, part of the air will enter the air channel 411 and be discharged to the outside through the air outlet of the air channel 411, that is, the air outlet of the air channel 411 is arranged on the frame of the first air inlet grille 4.

[0036] Since the air channel 411 is relatively narrow, the flow rate of the air entering the air channel 411 will be greater than the air flow rate of the air outlet of the body 1 and the air inlet of the body 1.

[0037] Further, the inlet 415 in the embodiment is a circular truncated cone structure, and the upper base is located at the cavity 5, thereby generating an attractive force to suck the dust accumulated in the cavity 5.

[0038] In the above technical solution, due to the circular structure of the end of the grid bar 41, the rounded end surface contacting the first dustproof block 3 will inevitably form a certain space angle with the first dustproof block 3. When the wind wheel works to draw the airflow from the first air inlet grid 4 into the body 1, the airflow speed through the rounded corner will be significantly lower than the airflow speed in other areas due to the Coanda effect, so a low-pressure environment is generated. Under the low-pressure environment, the airflow will flow towards the low-pressure place. When the airflow flows towards the low-pressure place, dust will also be transported from the high-pressure place to the low-pressure place (the well-known high-low air pressure principle, which will not be described in detail). Due to the angle design of the cavity groove 5 itself, and the airflow passing through the first dustproof block 3, the speed will be lost due to the blocking of the first dustproof block 3, thereby forming a vortex. The vortex collects the transported dust, that is, it is collected at the angle of the cavity groove 5, and the inlet 415 is connected to the angle of the cavity groove 5. Therefore, under the airflow difference, suction capacity is generated in the inlet 415, so that the dust accumulated in the cavity groove 5 is sucked into the air duct 411 and finally discharged.

[0039] In the above technology, the airflow quickly passes through the first air inlet grid 4 and forms a low pressure at the cavity groove 5, thereby forming an accumulation effect at the cavity groove 5. The dust passing through the first air inlet grid 4 and being blocked by the first dustproof block 3 will be partially accumulated at the cavity groove 5. Due to the high-speed flow of the air duct 411, the flow speed is greater than the air flow speed at the first air inlet grid 4, thereby generating a suction effect, that is, the garbage accumulated at the cavity groove 5 is sucked into the air duct 411 through the inlet 415, and finally discharged to the outside through the air duct 411. The self-cleaning effect of the first dustproof block 3 to a certain extent is realized, the frequency of manual cleaning is reduced, and the service life of the first dustproof block 3 is increased.

[0040] As a further embodiment of the present application, the end of the grid bar 41 away from the first dustproof block 3 is arc-shaped to form a parallel divided raised portion 412 and a smooth portion 413.

[0041] Furthermore, the smooth portion 413 is provided with an inner groove 6 arranged close to the first dustproof block 3, the inner groove 6 is arc-shaped, and the port side is provided with an intercepting portion 61 arranged close to the first dustproof block 3, and the inlet 415 is connected to the angle between the intercepting portion 61 and the inner wall of the inner groove 6.

[0042] In combination Figure 6As shown, when the air flow passes through the grid bars 41, affected by the Coanda effect, a low pressure is formed at the raised portion 412, and a high pressure is formed at the smooth portion 413. The air flow on the high pressure side flows to the low pressure, and due to the inner groove 6 opened at the smooth portion 413 and the suction at the inlet 415, a low pressure environment is formed inside the inner groove 6, so that the air flow on the high pressure rises into the inner groove 6. The air flow in the inner groove 6 flows along the arc top of the inner groove 6, and finally flows at the angle between the interception portion 61 and the inner wall of the inner groove 6, so that the suction capacity is generated at the inlet 415 under the air flow difference, thereby sucking the dust accumulated at the angle into the air duct 411 and finally being discharged, thereby forming the primary cleaning of the dust in the air flow, and the suction at the cavity 5 is the secondary filtering, thereby greatly reducing the content of dust particles accumulated in the first dust prevention block 3 when passing through the first dust prevention block 3. The self-cleaning effect of the first dust prevention block 3 is optimized to a certain extent, the frequency of manual cleaning is reduced, and the service life of the first dust prevention block 3 is increased.

[0043] As another embodiment further provided by the present application, the inner side of the mask plate 2 is provided with a base assembly 7, and the base assembly 7 comprises a second air inlet grid net 72 and a second dust prevention block 71. The second dust prevention block 71 is kept at a predetermined distance from the first dust prevention block 3 to form a cavity.

[0044] Specifically, the second air inlet grid net 72 is installed on the mounting frame 74, the second air inlet grid net 72 is fixed on the inner frame, and the second dust prevention block 71 is attached to the mounting frame 74 through the magic tape on the side and covers the second air inlet grid net 72. The first dust prevention block 3 is provided with perforations, the port of the mounting frame 74 is an inner recess structure, and the recess is provided with a positioning column, and the first dust prevention block 3 is fixed on the positioning column through the perforations. Then the mounting frame 74 is fixed on the inner side of the mask plate 2 by screws, and the specific structure can be known by referring to Figure 2

[0045] The second dust prevention block 71 in the above embodiment is an air filter plate. The double filtering system is formed with the first dust prevention block 3, so that the particle content of the air discharged from the air outlet of the body 1 is minimized.

[0046] It should be noted that the grid bars 41 of the first air inlet grid net 4 in the embodiment are linearly arranged with respect to the z-axis direction, and the grid bars 41 of the second air inlet grid net 72 are linearly arranged with respect to the x-axis direction, so that Figure 4 the position shown is taken as a reference, and the long side of the first air inlet grid net 4 is the x-axis direction.

[0047] ​As a further provided embodiment of the present application, the base assembly 7 comprises a flexible plate 73 attached to the side of the first dustproof block 3, and the flexible plate 73 is provided with rectangular through-slots arranged in a rectangular array, and the through-slots are provided with a sheet 731 in contact with the inner wall of the through-slots.

[0048] Specifically, the flexible plate 73 in the embodiment can be an elastic metal sheet such as an elastic alloy sheet or a stainless steel sheet. In the embodiment, a stamping process is used to stamp the flexible plate 73 to form stamping grooves arranged in a rectangular array, and then the metal sheet in the stamping grooves is turned over to form the sheet 731. When the wind wheel (i.e. the working component of air flow in the air curtain machine, which is well known and will not be described in detail) is working, the air flow enters through the first air inlet grid 4, and when it enters the body 1 through the second air inlet grid 72, the fast-flowing air flow passes through the sheet 731, which will cause the sheet 731 to vibrate. When the air flow passes through the sheet 731, left-right or up-down turbulent eddies exist, resulting in a flow rate difference, thereby generating a pressure difference, and then causing the sheet 731 to vibrate. This vibration of a predetermined frequency is transmitted to the flexible plate 73 and amplified by the flexible plate 73, thereby generating sound waves acting on the first dustproof block 3. Because the first dustproof block 3 is a low-density sponge block with a thickness of 0.3mm-0.5mm, dust is not easy to accumulate on the low-density sponge block under the sound waves, and will be free in the vicinity of the first dustproof block 3 (near the side close to the first air inlet grid 4) to increase the accumulation capacity of low-pressure dust at the cavity 5. Therefore, under the air flow difference, suction capacity will be generated in the inlet 415, thereby drawing the accumulated dust in the cavity 5 into the air duct 411 and finally being discharged, thereby further enhancing the self-cleaning ability of the first dustproof block 3.

[0049] In addition, in the above embodiment, when the air flow passes through the sheet 731, left-right or up-down turbulent eddies exist, resulting in a flow rate difference, thereby generating a pressure difference, and then causing the sheet 731 to vibrate, which belongs to a low-frequency frequency. This low-frequency frequency will affect insects, and the human ear cannot perceive it, because it will not cause noise interference. Insects (such as moths) are easily attracted by light at night and will gather and fly in the vicinity of the flat door. The low-frequency audio in the vibration process of the sheet 731 will interfere with the insects (which is well known and will not be described in detail), thereby achieving a pest control effect within a certain range near the body 1, avoiding the insects from being sucked into the first air inlet grid 4, and finally the carcasses staying on the first air inlet grid 4 and the first dustproof block 3, and also avoiding the insects gathering and flying from affecting travel.

[0050] As a further provided embodiment of the present application, the sheet 731 comprises a blade portion 732 and an arc-shaped windward cover 733, and the blade portion 732 is arranged at the arc top of the arc-shaped windward cover 733.

[0051] Specifically, the arc-shaped wind cover 733 in the embodiment is specifically a U-shaped structure or a V-shaped structure, and the blade part 732 is arranged at the arc top of the arc-shaped wind cover 733. When the airflow passes through the blade part 732 and left and right or up and down turbulent vortexes are generated, there is a flow rate difference, thereby generating a pressure difference, and then the blade part 732 vibrates, and the vibration frequency is amplified by the arc-shaped wind cover 733, thereby optimizing the low-frequency frequency insect repelling effect, and when the blade part 732 vibrates, the arc-shaped wind cover 733 also vibrates, the two ends of the arc-shaped wind cover 733 vibrate, thereby enhancing the vibration effect and ensuring the effect of the sound wave on the first dustproof block 3.

[0052] As further provided by the present application, in combination with Figure 8 It can be known that the end of the blade part 732 extends into the arc-shaped wind cover 733 to form the vibrating blade 7321.

[0053] The arc-shaped wind cover 733 is provided with a perforation, and the blade part 732 and the vibrating blade 7321 are clamped in the perforation through the clamping points on the connecting part between the two to be fixed.

[0054] Specifically, the part of the blade part 732 extending into the arc-shaped wind cover 733 forms the vibrating blade 7321 in the embodiment, and the blade part 732 and the arc-shaped wind cover 733 adopt a buckle combination mode Figure 8 In detail, it is not described too much, that is, the two are assembly parts. When the airflow passes through the blade part 732 and left and right or up and down turbulent vortexes are generated, there is a flow rate difference, thereby generating a pressure difference, and then the blade part 732 vibrates, and the vibrating blade 7321 in the arc-shaped wind cover 733 vibrates synchronously.

[0055] In the above technical solution, the blade part 732 is longer than the vibrating blade 7321, so when the blade part 732 vibrates, the vibration frequency of the vibrating blade 7321 is necessarily higher than that of the blade part 732, under the resonance effect, the end of the arc-shaped wind cover 733 resonates under the vibration of the vibrating blade 7321, thereby further increasing the vibration frequency, thereby further enhancing the vibration effect and ensuring the effect of the sound wave on the first dustproof block 3.

[0056] The above only describes certain exemplary embodiments of the present application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. An embedded insect-proof air curtain machine, comprising a body (1) which comprises an air inlet and an air outlet, and a faceplate (2) hinged to the air inlet, characterized in that, The face mask plate (2) is provided with a first air inlet grid (4), and the inner side of the first air inlet grid (4) is provided with a first dustproof block (3) matched with the first air inlet grid (4). The first air inlet grid (4) is arranged in a linear array, the end of the grid strip is a rounded structure, and the end of the rounded structure and the included angle of the first dustproof block (3) form a cavity (5); the grid strip includes an air channel (411), and the air channel (411) includes at least two inlet ports (415) connected to the cavity (5); The inner side of the face mask plate (2) is provided with a base assembly (7), and the base assembly (7) includes a second air inlet grid (72) and a second dustproof block (71); the second dustproof block (71) and the first dustproof block (3) are kept at a predetermined distance to form a cavity; The base assembly (7) includes a flexible plate (73) matched with the side of the first dustproof block (3), the flexible plate (73) is provided with a rectangular through slot arranged in a rectangular array, and a thin sheet (731) with one end in contact with the inner wall of the rectangular through slot is arranged in the rectangular through slot; The thin sheet (731) includes a blade portion (732) and an arc-shaped windward cover (733), and the blade portion (732) is arranged at the top of the arc-shaped windward cover (733); The end of the blade portion (732) extends into the arc-shaped windward cover (733) to form a vibrating sheet (7321); The arc-shaped windward cover (733) is provided with a perforation, and the blade portion (732) and the vibrating sheet (7321) are fixed in the perforation through the clamping points on the connecting portion therebetween.

2. The built-in insect screen curtain machine according to claim 1, characterized in that, The end of the grid strip away from the first dustproof block (3) is an arc-shaped structure to form a parallel divided raised portion (412) and a smooth portion (413).

3. The built-in insect screen curtain machine according to claim 2, characterized in that, The smooth portion (413) is provided with an inner recess (6) arranged close to the first dustproof block (3), the inner recess (6) is an arc-shaped structure, and the port side is provided with an intercepting portion (61) arranged close to the first dustproof block (3), and the included angle of the inlet port (415), the intercepting portion (61) and the inner wall of the inner recess (6) is communicated.

4. A side-hung door, characterized in that The embedded insect-proof air curtain machine includes the inner recess (6) arranged close to the first dustproof block (3), the inner recess (6) is an arc-shaped structure, and the port side is provided with an intercepting portion (61) arranged close to the first dustproof block (3), and the included angle of the inlet port (415), the intercepting portion (61) and the inner wall of the inner recess (6) is communicated.

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