An indoor door panel structure with noise reduction, fire prevention and air purification, door

Abstract

The present invention discloses an indoor door panel structure with noise reduction, fire prevention, and air purification functions, which includes a door panel frame with a rectangular outer contour and a hollow interior; grooves are provided on the top, bottom, and two sides of the door panel frame; two decorative panels are arranged on the outer surface of the door panel frame to wrap the door panel frame; the decorative panels are provided with perforations corresponding to the grooves of the door panel frame; a fireproof and heat-insulating filler is filled between the decorative panels and the door panel frame; a number of sound-absorbing and air purification components are respectively arranged in the grooves of the door panel frame through the perforations. The present invention can ensure the natural flow of air on both sides of the door panel while achieving a certain sound absorption and noise reduction ability, and at the same time purify the flowing air to a certain extent.

Description

Technical Field

[0001] The present invention relates to the field of doors, and particularly to an indoor door panel structure with noise reduction, fire prevention, and air purification functions. Background Art

[0002] As a movable opening mechanism for isolating indoor spaces, an interior door not only physically separates each space but also needs to have a certain sound insulation ability. Currently, the silent doors on the market place rubber strips at the door seams to seal the gaps around the door panel and the door frame as much as possible to block the entry of sound. This technology has a certain sound insulation effect, but since all the gaps around the door panel are blocked, it affects the air circulation on both sides of the door panel and the indoor air quality, which has certain drawbacks. Summary of the Invention

[0003] In view of the above-mentioned defects of the prior art, the purpose of the present invention is to provide an indoor door panel structure with noise reduction, fire prevention, and air purification functions, which can ensure the air flow on both sides of the door panel while achieving a certain sound insulation ability, and at the same time, the flowing air can be purified to a certain extent.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] An indoor door panel structure with noise reduction, fire prevention, and air purification functions, comprising:

[0006] A door panel frame, with a rectangular outer contour and a hollow interior; grooves are provided on the top, bottom, and two sides of the door panel frame;

[0007] Two decorative panels are arranged on the outer surface of the door panel frame to wrap the door panel frame; perforations are provided on the decorative panels corresponding to the grooves of the door panel frame;

[0008] A fireproof and heat-insulating filler is filled between the decorative panel and the door panel frame;

[0009] A number of sound-absorbing and air-purifying components are respectively arranged in the grooves of the door panel frame through the perforations; the sound-absorbing and air-purifying components include: a microporous plate, fixed to the door panel frame by screws, and the outer surface of the microporous plate is flush with the outer surface of the device panel; an annular fastener is arranged on the side wall of the groove; a non-woven fabric is bent into a box shape, and the side surface is pressed by the annular fastener to fit against the inner wall of the groove; the gap between the lower surface of the microporous plate and the non-woven fabric is 5-10 mm; spherical ore crystals are arranged at the bottom of the groove and are limited by the non-woven fabric.

[0010] Further, the microporous plate includes:

[0011] Fixing plate, the outline of the plate surface is the same as that of the perforation; the thickness of the fixing plate is the same as that of the device panel; a number of through sound guiding holes are evenly arranged on the fixing plate; the fixing plate is fixed on the door panel frame by countersunk head screws;

[0012] The orifice plate is arranged on the inner side of the fixing plate and is integrally formed with the fixing plate. The outline of the orifice plate is the same as that of the groove, and the side surface of the orifice plate is closely attached to the side wall of the groove; through sound absorbing holes communicating with the sound guiding holes are arranged on the orifice plate.

[0013] Further, the outline of the sound guiding hole is frustum-shaped, and the diameter of the sound guiding hole decreases as the distance from the orifice plate decreases; the hole wall of the sound guiding hole is rounded with the outer plate surface of the fixing plate.

[0014] Further, the sound absorbing holes are coaxially and identically-diameter communicated with the sound guiding holes; the fixing plate and the orifice plate are made of aluminum alloy or 304 stainless steel. The diameter of the sound absorbing holes is 1 - 1.5 mm, and the hole pitch between a number of sound absorbing holes is 3 - 5 mm.

[0015] Further, the sound absorbing and air purifying assembly further includes a bottom plate, the bottom plate is fixed to the lower surface of the orifice plate through a gasket, a gap is left between the upper surface of the bottom plate and the lower surface of the orifice plate, a number of air permeating holes are arranged on the bottom plate, the axes of the air permeating holes are misaligned with the axes of the sound absorbing holes, and the openings of the air permeating holes are misaligned with the openings of the sound absorbing holes.

[0016] Further, the gap between the bottom plate and the orifice plate is 3 - 8 times the diameter of the sound absorbing holes; the diameter of the air permeating holes is 1 - 1.5 times the diameter of the sound absorbing holes.

[0017] Further, from the inside to the outside of the spherical ore crystal, there are successively a coarse particle layer and a fine particle layer, and the fine particle layer abuts against the surface of the non-woven fabric.

[0018] Further, the door panel frame includes a rectangular frame and a column that divides the interior of the rectangular frame into two parts; step grooves are arranged on the inner sides of two side surfaces of the rectangular frame, and the side surface of the column is flush with the step surface of the step groove;

[0019] Two noise reduction plates are arranged on each side surface of the rectangular frame, and the noise reduction plates are arranged in the step grooves formed by the column and the rectangular frame; the filler is located between two opposite noise reduction plates.

[0020] Further, a number of sound absorbing grooves are evenly arranged on the plate surface of the noise reduction plate, and the sound absorbing grooves include:

[0021] An opening groove, which is cylindrical and faces the filler;

[0022] A sound absorbing cavity, which is cylindrical and coaxially arranged with the opening groove. One end of the sound absorbing cavity is communicated with the opening groove, and the other end is closed by a decorative panel.

[0023] Furthermore, the width of the grooves at the top and bottom of the door panel frame is not less than 0.8 times the width of the door panel frame; there are two grooves on the side corresponding to the door tongue of the door panel frame, and the total length is not less than 0.8 times the height of the side of the door panel frame; there are three grooves on the side corresponding to the hinge of the door panel frame, which are staggered from the hinge installation position, and the total length is not less than 0.8 times the height of the side of the door panel frame.

[0024] A door with an indoor door panel structure having noise reduction, fire prevention, and air purification functions, comprising the door panel structure as described in any one of claims 1 to 9 and a door frame, and rubber strips are provided on the door frame corresponding to the areas where the sound absorption and air purification components are not provided in the door panel structure.

[0025] Due to the adoption of the above technical solutions, the present invention has the following advantages:

[0026] 1. The interior of the door panel frame is filled with a fireproof and heat-insulating filler, which can play a certain role in fire prevention and heat insulation, and at the same time has a certain sound insulation ability.

[0027] 2. A number of simple Helmholtz resonators are formed between the microporous plate and the non-woven fabric in the sound absorption and air purification components, and part of the sound passing through the side of the door panel is absorbed to achieve the purpose of noise reduction and silence.

[0028] 3. The provided sound absorption and air purification components can eliminate the need for rubber strips on the door panel, leaving a gap between the door panel and the door frame for air flow on both sides of the door panel to achieve the effect of ventilation.

[0029] 4. Part of the air flowing through the gap between the door panel and the door frame will pass through the microporous plate, pass through the non-woven fabric and contact the spherical ore crystals, so that harmful substances such as odors and formaldehyde in the air are adsorbed, achieving a certain air purification effect.

[0030] Other advantages, objectives, and features of the present invention will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings of the present invention are described as follows:

[0032] Figure 1 It is a top view structural schematic diagram of an indoor door panel structure having noise reduction, fire prevention, and air purification functions in the embodiment.

[0033] Figure 2 For Figure 1 The structural schematic diagram of the A-A section in

[0034] Figure 3For Figure 2 The enlarged structural schematic diagram at position B in

[0035] Figure 4 For Figure 2 The structural schematic diagram of the C-C section in

[0036] Figure 5 For Figure 4 The enlarged structural schematic diagram at position D in

[0037] In the figure: 1. Rectangular frame; 11. Groove; 12. Column; 13. Step groove; 2. Decorative panel; 21. Perforation; 3. Filler; 4. Microporous plate; 41. Fixed plate; 411. Sound guiding hole; 42. Hole plate; 421. Sound absorbing hole; 5. Ring fastener; 6. Non-woven fabric; 7. Spherical ore crystal; 71. Coarse particle layer; 72. Fine particle layer; 8. Bottom plate; 81. Vent hole; 9. Noise reduction plate; 91. Open slot; 92. Sound absorbing cavity; 10. Hinge. Specific embodiments

[0038] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0039] Embodiment:

[0040] As Figures 1 to 5 shown, an indoor door panel structure with noise reduction, fire prevention, and air purification includes

[0041] A door panel frame with a rectangular outer contour and a hollow interior; a groove 11 is provided at each of the top and bottom of the door panel frame, two grooves 11 are provided on the side corresponding to the door tongue, and three grooves 11 are provided on the side corresponding to the hinge 10;

[0042] Two decorative panels 2 are provided on the outer surface of the door panel frame to wrap the door panel frame; perforations 21 are provided on the decorative panel 2 corresponding to the grooves 11 of the door panel frame;

[0043] A fireproof and heat-insulating filler 3 is filled between the decorative panel 2 and the door panel frame;

[0044] Seven sound absorption and air purification components are respectively arranged in the grooves 11 of the door panel frame through the perforations 21; the sound absorption and air purification components include: a microporous plate 4 fixed to the door panel frame by screws, and the outer side plate surface is flush with the outer surface of the device panel; a ring fastener 5 is arranged on the side wall of the groove 11; a non-woven fabric 6 is bent into a box shape, and the side surface is pressed by the ring fastener 5 to fit against the inner wall of the groove 11; the gap between the lower surface of the microporous plate 4 and the non-woven fabric 6 is 5-10 mm; a spherical ore crystal 7 is arranged at the bottom of the groove 11 and is limited by the non-woven fabric 6.

[0045] The sound-absorbing holes 421 on the microporous plate 4 and the diameter of the non-woven fabric 6 form a simplified Helmholtz resonator to absorb part of the sound; at the same time, the non-woven fabric 6 limits the spherical mineral crystals 7, and the spherical mineral crystals 7 can absorb harmful gases such as formaldehyde in the air. Although they cannot decompose harmful substances, they can reduce the concentration of harmful substances in the indoor air to a certain extent.

[0046] In this embodiment, the microplate 4 includes:

[0047] The fixing plate 41 has the same profile as the perforation 21 ; the thickness of the fixing plate 41 is the same as the thickness of the device panel; the fixing plate 41 is evenly provided with a plurality of sound guide holes 411 passing through; the fixing plate 41 is fixed to the door panel frame by countersunk screws;

[0048] The orifice plate 42 is arranged on the inner side of the fixing plate 41 and is integrally formed with the fixing plate 41. The contour of the orifice plate 42 is the same as that of the groove 11, and the side surface of the orifice plate 42 is tightly attached to the side wall of the groove 11; the orifice plate 42 is provided with a penetrating sound absorption hole 421 connected to the sound guide hole 411.

[0049] The fixing plate 41 and the hole plate 42 adopt a stepped structure to facilitate fixing and installing them on the door panel frame while ensuring the overall structural strength.

[0050] In this embodiment, the outline of the sound guide hole 411 is a truncated cone, and the diameter of the sound guide hole 411 decreases as the distance from the hole plate 42 decreases; the hole wall of the sound guide hole 411 and the outer plate surface of the fixing plate 41 are rounded.

[0051] The sound guide hole 411 with a reduced diameter can weaken the sound part and guide it into the sound absorption hole 421, and the rounded corners on the surface can improve the hand feel.

[0052] In this embodiment, the sound absorbing hole 421 is coaxially connected to the sound guide hole 411 with the same diameter; the fixing plate 41 and the orifice plate 42 are made of aluminum alloy or 304 stainless steel, the diameter of the sound absorbing hole 421 is 1 to 1.5 mm, and the hole spacing between the plurality of sound absorbing holes 421 is 3 to 5 mm.

[0053] The diameter of the sound-absorbing hole 421 can be selected to better absorb the noise generated in the room.

[0054] In this embodiment, the sound absorption and air purification component further includes a bottom plate 8, which is fixed to the lower surface of the orifice plate 42 by a gasket. A gap is left between the surface on the bottom plate 8 and the lower surface of the orifice plate 42. A plurality of air holes 81 are provided on the bottom plate 8, and the axis of the air hole 81 is misaligned with the axis of the sound absorption hole 421. The opening of the air hole 81 is misaligned with the opening of the sound absorption hole 421.

[0055] In this embodiment, the gap between the bottom plate 8 and the orifice plate 42 is 5 times the diameter of the sound-absorbing holes 421; the diameter of the ventilation holes 81 is 1 time the diameter of the sound-absorbing holes 421.

[0056] Compared with the non-woven fabric 6, the bottom plate 8 can more accurately adjust the distance between the voids on the lower surface of the orifice plate 42, so as to better apply the Helmholtz resonator principle, adjust the gap between the bottom plate 8 and the orifice plate 42, and achieve a better noise absorption effect.

[0057] In this embodiment, the spherical ore crystal 7 sequentially includes a coarse particle layer 71 and a fine particle layer 72 from the inside to the outside, and the fine particle layer 72 abuts against the surface of the non-woven fabric 6.

[0058] The design of the coarse particle layer 71 and the fine particle layer 72 can further absorb the noise passing through the ventilation holes 81 and the non-woven fabric 6 on the basis of a simplified Helmholtz resonator.

[0059] The sound insulation of the overall door panel is better achieved through the noise reduction plate 9.

[0060] In this embodiment, the door panel frame includes a rectangular frame 1 and a column 12 that divides the interior of the rectangular frame 1 into two parts; step grooves 13 are provided on the inner sides of both sides of the rectangular frame 1, and the side surface of the column 12 is flush with the step surface of the step groove 13;

[0061] Two noise reduction plates 9 are provided on each side of the rectangular frame 1, and the noise reduction plates 9 are arranged in the step grooves 13 formed by the column 12 and the rectangular frame 1; the filler 3 is located between two opposite noise reduction plates 9.

[0062] In this embodiment, a plurality of sound-absorbing grooves are evenly provided on the plate surface of the noise reduction plate 9, and the sound-absorbing grooves include:

[0063] An open groove 91, which is cylindrical and faces the filler 3;

[0064] A sound-absorbing cavity 92, which is cylindrical and coaxially arranged with the open groove 91. One end of the sound-absorbing cavity 92 is communicated with the open groove 91, and the other end is closed by the decorative panel 2.

[0065] Starting from the structural simplification in this embodiment, the noise transmitted from the filling layer is selected to be absorbed, that is, the open groove 91 is a cylindrical filler 3; one end of the sound-absorbing cavity 92 is communicated with the open groove 91, and the other end is closed by the decorative panel 2.

[0066] In this embodiment, the width of the groove 11 at the top and bottom of the door panel frame is not less than 0.8 times the width of the door panel frame; there are two grooves 11 on the side corresponding to the door tongue of the door panel frame, and the total length is not less than 0.8 times the height of the side of the door panel frame; there are three grooves 11 on the side corresponding to the hinge 10 of the door panel frame, which are staggered from the installation position of the hinge 10, and the total length is not less than 0.8 times the height of the side of the door panel frame.

[0067] The larger the proportion of the length of the groove 11, the more noise transmitted between the door panel and the door frame can be absorbed. At the same time, rubber strips are provided in specific areas of the door frame corresponding to this door panel structure. Specifically, rubber strips are provided in areas of the door frame corresponding to the areas where the sound absorption and air purification components are not provided in the door panel structure, such as the positions of the door tongue and the hinge 10. The rubber strip can prevent the direct impact between the door panel and the door frame when closing the door, generating a slamming sound, and at the same time can seal the areas where the sound absorption and air purification components are not provided, so that the noise can only pass through the areas where the sound absorption and air purification components are provided, achieving maximum noise reduction.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the present technical solution, and they should all be covered by the scope of the claims of the present invention.

Claims

1. An indoor door panel structure with noise reduction, fire prevention, and air purification, characterized in that, Including, A door panel frame with a rectangular outer contour and a hollow interior; grooves are provided on the top, bottom, and two sides of the door panel frame; Two decorative panels are arranged on the outer surface of the door panel frame to wrap the door panel frame; perforations are provided on the decorative panels corresponding to the grooves of the door panel frame; A fireproof and heat-insulating filler is filled between the decorative panel and the door panel frame; Several sound-absorbing and air-purifying components are respectively arranged in the grooves of the door panel frame through the perforations; the sound-absorbing and air-purifying components include: a microporous plate fixed to the door panel frame by screws, and the outer plate surface is flush with the outer surface of the device panel; an annular fastener is arranged on the side wall of the groove; a non-woven fabric is bent into a box shape, and the side surface is pressed and fitted to the inner wall of the groove by the annular fastener; the gap between the lower surface of the microporous plate and the non-woven fabric is 5 to 10 millimeters; spherical ore crystals are arranged at the bottom of the groove and are limited by the non-woven fabric; The microporous plate includes: A fixing plate with a plate surface contour the same as that of the perforation; the thickness of the fixing plate is the same as the thickness of the device panel; several through sound-guiding holes are evenly provided on the fixing plate; the fixing plate is fixed to the door panel frame by countersunk head screws; A hole plate is arranged inside the fixing plate and is integrally formed with the fixing plate. The contour of the hole plate is the same as that of the groove, and the side surface of the hole plate is closely attached to the side wall of the groove; through sound-absorbing holes communicating with the sound-guiding holes are provided on the hole plate; The contour of the sound-guiding hole is frustum-shaped, and the diameter of the sound-guiding hole decreases as the distance from the hole plate decreases; the hole wall of the sound-guiding hole and the outer plate surface of the fixing plate are rounded; The sound-absorbing and air-purifying component further includes a bottom plate, the bottom plate is fixed to the lower surface of the hole plate through a gasket, a gap is left between the upper surface of the bottom plate and the lower surface of the hole plate, several air-permeable holes are provided on the bottom plate, the axes of the air-permeable holes are offset from the axes of the sound-absorbing holes, and the openings of the air-permeable holes are offset from the openings of the sound-absorbing holes; The gap between the bottom plate and the hole plate is 3 to 8 times the diameter of the sound-absorbing hole; the diameter of the air-permeable hole is 1 to 1.5 times the diameter of the sound-absorbing hole.

2. The indoor door panel structure with noise reduction, fire prevention, and air purification according to claim 1, characterized in that, The sound-absorbing holes are coaxially and identically-diameter connected to the sound-guiding holes; the fixing plate and the hole plate are made of aluminum alloy or 304 stainless steel material, the diameter of the sound-absorbing holes is 1 to 1.5 millimeters, and the hole pitch between several sound-absorbing holes is 3 to 5 millimeters.

3. The indoor door panel structure with noise reduction, fire prevention and air purification according to claim 1, characterized in that, The spherical ore crystal includes a coarse particle layer and a fine particle layer from inside to outside in sequence, and the fine particle layer abuts against the surface of the non-woven fabric.

4. The indoor door panel structure with noise reduction, fire prevention, and air purification according to claim 1, characterized in that, The door panel frame includes a rectangular frame and a column that divides the interior of the rectangular frame into two parts; step grooves are provided on the inner sides of the two sides of the rectangular frame, and the side surface of the column is flush with the step surface of the step groove; Two noise reduction plates are provided on each side of the rectangular frame, and the noise reduction plates are arranged in the step grooves formed by the column and the rectangular frame; the filler is located between two opposite noise reduction plates.

5. The indoor door panel structure with noise reduction, fire prevention, and air purification according to claim 4, characterized in that, The plate surface of the noise reduction plate is evenly provided with several sound-absorbing grooves, and the sound-absorbing grooves include: An open groove, which is cylindrical and faces the filler; A sound-absorbing cavity, which is cylindrical and is coaxially arranged with the open groove. One end of the sound-absorbing cavity is communicated with the open groove, and the other end is closed by the decorative panel.

6. The indoor door panel structure with noise reduction, fire prevention, and air purification according to claim 5, characterized in that, The groove widths at the top and bottom of the door panel frame are not less than 0.8 times the width of the door panel frame; there are two grooves on the side corresponding to the door tongue of the door panel frame, and the total length is not less than 0.8 times the side height of the door panel frame; there are three grooves on the side corresponding to the hinge of the door panel frame, staggered from the hinge installation position, and the total length is not less than 0.8 times the side height of the door panel frame.

7. A door with an indoor door panel structure having noise reduction, fire prevention, and air purification functions, characterized in that, It includes the door panel structure as described in any one of claims 1 to 6 and a door frame, and rubber strips are provided on the door frame corresponding to the areas where the sound absorption and air purification components are not provided in the door panel structure.

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