Active sound insulation and noise reduction door assembly

Abstract

The invention discloses an active sound insulation and noise reduction door assembly which comprises a door leaf provided with an inflation sealing piece, and the inflation sealing piece is arranged along the circumferential side face of the door leaf and is an elastic piece which deforms after being inflated; the door pocket comprises a door pocket line and a door stop line, a corner sealing piece is arranged at the corner of the door pocket line and close to the door stop line, and the corner sealing piece is matched with the inflation sealing piece to form an active sealing assembly in the circumferential direction of the door leaf and the inflation sealing piece when the door leaf is closed on the door pocket line. The inflation system is used for inflating the inflation sealing element; in the process that the door leaf rotates to the closed state, the control system controls the inflation system to be started. The inflatable sealing piece is arranged on the door leaf, when the door leaf is in a closed state, the inflatable sealing piece is filled with gas, the gas pressure enables the inflatable sealing piece to form certain sealing contact pressure, the inflatable sealing piece makes complete contact with the door pocket line, active sealing is achieved, and the corner sealing piece is combined to shield a gap at the corner of the door leaf and the door pocket line; the effects of sound insulation and noise reduction of the door assembly are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of doors, and in particular to an active sound insulation and noise reduction door assembly. Background Art

[0002] Interior doors refer to doors installed at the entrance of indoor rooms. They are the general term for all room doors and can also be called home doors. Interior doors are defined by their use; the corresponding ones are "exterior doors", i.e., entrance doors, entry doors - which are usually called anti-theft doors, safety doors, etc.

[0003] The interior door mainly includes a door leaf and a door frame. When the door leaf is closed on the door frame, the edge of the door leaf is sealed with the door frame to achieve the effect of sound insulation and noise reduction. However, the existing seal between the door leaf and the door frame is a passive seal, that is, when the door leaf and the door frame are matched, the seal between the two is squeezed to achieve sealing. However, after long-term use of this sealing structure, the elasticity of the seal fails, so that the deformation is reduced or even no longer deformed, which leads to the sealing effect of the door assembly and the effect of sound insulation and noise reduction.

[0004] Therefore, how to provide an active sound insulation and noise reduction door assembly to achieve active sealing of the gap between the door leaf and the door frame, and improve the sealing effect of the door assembly and the sound insulation and noise reduction effect, is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] In view of this, the present invention provides an active sound insulation and noise reduction door assembly to achieve active sealing of the gap between the door leaf and the door frame, thereby improving the sealing effect of the door assembly and the sound insulation and noise reduction effect.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An active sound insulation and noise reduction door assembly, comprising:

[0008] A door leaf, wherein an inflatable seal is installed on the door leaf, the inflatable seal is arranged along the circumferential side of the door leaf, and the inflatable seal is an elastic member that deforms after being inflated;

[0009] The door frame includes a door frame line and a door stop line, the door stop line is fixed to the door frame line, and the door stop line and the door frame line are stacked along the width direction of the door assembly, the door stop line and the door frame line form a step surface, and a corner seal is provided at a corner of the door frame line and close to the door stop line, and the corner seal can cooperate with the inflatable seal to form an active sealing component in the circumferential direction of the two when the door leaf is closed on the door frame line;

[0010] an inflation system, the inflation system being connected to the inflatable seal and being used to inflate the inflatable seal;

[0011] A control system is connected to the inflation system, and the control system is used to detect the position of the door leaf relative to the door frame, and when the door leaf rotates to a closed state, the control system controls the inflation system to start.

[0012] Preferably, the above-mentioned active sound insulation and noise reduction door assembly further includes a pressure detection device for detecting the pressure inside the inflatable seal, and the pressure detection device is connected to the control system;

[0013] When the control system detects that the door leaf is in a closed state, the pressure detection device detects the pressure inside the inflatable seal, and when the pressure detection device detects that the pressure inside the inflatable seal reaches a preset pressure value, the control system controls the inflation system to stop working; after a preset time, the pressure detection device detects the pressure inside the inflatable seal, and when the pressure detection device detects that the pressure inside the inflatable seal is less than a preset pressure value, the control system controls the inflation system to start until the pressure inside the inflatable seal reaches the preset pressure value.

[0014] Preferably, the above-mentioned active sound insulation and noise reduction door assembly also includes an air release valve connected to the inflatable seal.

[0015] Preferably, in the above-mentioned active sound insulation and noise reduction door assembly, the inflatable seal is fixed to the circumferential side surface of the door leaf, and the inflatable seal is an arc segment at the top corner of the door leaf;

[0016] The corner seal is a structural member having an arcuate surface, and the arcuate surface of the corner seal is used to fit and seal with the arcuate section of the inflatable seal on one side facing the outer contour of the door leaf.

[0017] Preferably, in the above-mentioned active sound insulation and noise reduction door assembly, the door leaf and the door frame are both rectangular structures, and the inflatable seal is the arc segment at the four top corners of the door leaf;

[0018] The corner seals are arranged at the four top corners of the door frame, and the corner seals correspond to the arc segments one by one.

[0019] Preferably, in the above-mentioned active sound insulation and noise reduction door assembly, the door frame has a groove for cooperating with the inflatable seal after inflation.

[0020] Preferably, in the above-mentioned active sound insulation and noise reduction door assembly, the circumferential side of the door leaf is provided with an edge binding member, the edge binding member has a receiving groove, and the inflatable seal is installed in the receiving groove.

[0021] Preferably, in the above-mentioned active sound insulation and noise reduction door assembly, the edge binding member includes:

[0022] A first assembly section, the first assembly section is assembled to a first portion of a circumferential side surface of the door leaf, the first portion being a portion of the circumferential side surface of the door leaf away from the door stop line when the door leaf is in a closed state;

[0023] The second assembly section is assembled to the second part of the circumferential side of the door leaf, the first part and the second part are two parts along the thickness direction of the door leaf, and the first assembly section is connected to the second assembly section, and the connection between the first assembly section and the second assembly section extends into the recess of the door leaf to form the accommodating groove.

[0024] Preferably, in the above-mentioned active sound insulation and noise reduction door assembly, a side of the first assembly section away from the second assembly section is clamped to a side of the door leaf away from the door stop line in the thickness direction, and a side of the second assembly section away from the first assembly section is clamped to a side of the door leaf close to the door stop line in the thickness direction;

[0025] The outer surface of the accommodating groove is snap-fitted into the recess of the door leaf.

[0026] Preferably, in the above-mentioned active sound insulation and noise reduction door assembly, both side walls of the accommodating groove along the thickness direction of the door assembly are provided with limiting grooves, and the limiting grooves of the two side walls of the accommodating groove are staggered.

[0027] Preferably, in the above-mentioned active sound insulation and noise reduction door assembly, a sealing strip is provided on one side of the step surface formed by the door stop line and the door frame line for abutting against the door leaf, and the sealing strip is arranged along the circumference of the door stop line.

[0028] Preferably, in the above-mentioned active sound insulation and noise reduction door assembly, the door leaf comprises:

[0029] keel,

[0030] A polymer sound-absorbing panel, wherein the polymer sound-absorbing panel is filled between the keels;

[0031] A sound insulation buffer layer, the sound insulation buffer layer is coated on the outer surface of the keel and the polymer sound absorbing board;

[0032] Damping sound insulation felt, the damping sound insulation felt is coated on the outer surface of the sound insulation buffer layer;

[0033] A high-density sound insulation board, wherein the high-density sound insulation board is coated on the outer surface of the damping sound insulation felt;

[0034] A decorative plate is coated on the outer surface of the high-density sound insulation board.

[0035] An active sound insulation and noise reduction door assembly is disclosed in an embodiment of the present invention. An inflatable seal is provided on a door leaf. When the door leaf is in a closed state, gas is filled into the inflatable seal. The gas pressure is used to form a certain sealing contact pressure on the inflatable seal, so that the inflatable seal is in full contact with the door frame, thereby achieving active sealing. Combined with the corner seal, the gap at the corner between the door leaf and the door frame is blocked, thereby achieving the sound insulation and noise reduction effect of the door assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 It is a structural schematic diagram of an active sound insulation and noise reduction door assembly disclosed in an embodiment of the present invention;

[0038] Figure 2 This is a disassembled diagram of an active sound insulation and noise reduction door assembly disclosed in an embodiment of the present invention;

[0039] Figure 3 for Figure 2 A partial enlarged view of middle C;

[0040] Figure 4 for Figure 2 A partial enlarged view of D in the middle;

[0041] Figure 5 It is a disassembled diagram of the local structure of the active sound insulation and noise reduction door assembly disclosed in an embodiment of the present invention;

[0042] Figure 6 for Figure 5 A partial enlarged view of middle E;

[0043] Figure 7 for Figure 1 Sectional view in the AA direction;

[0044] Figure 8 for Figure 1 Cross-sectional view in the BB direction;

[0045] Fig. 9 It is a diagram showing different states of an inflatable seal of an active sound insulation and noise reduction door assembly disclosed in an embodiment of the present invention;

[0046] Fig.10 It is a schematic diagram of the partial structure of a door leaf of an active sound insulation and noise reduction door assembly disclosed in an embodiment of the present invention;

[0047] Fig.11 It is a schematic diagram of the local structure of the door frame of the active sound insulation and noise reduction door assembly disclosed in an embodiment of the present invention, close to the ground;

[0048] Fig.12 It is a schematic diagram of the local structure of the door frame of the active sound insulation and noise reduction door assembly disclosed in an embodiment of the present invention, which is away from the ground;

[0049] Fig.13 Schematic diagram of the control principle of the inflatable seal disclosed in the embodiment of the present invention. DETAILED DESCRIPTION

[0050] The invention discloses an active sound insulation and noise reduction door assembly to realize active sealing of the gap between a door leaf and a door cover, thereby improving the sealing effect of the door assembly and the sound insulation and noise reduction effect.

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0053] Interior doors refer to doors installed at the entrance of indoor rooms. They are the general term for all room doors and can also be called home doors. Interior doors are defined by their use; the corresponding ones are "exterior doors", i.e., entrance doors, entry doors - which are usually called anti-theft doors, safety doors, etc.

[0054] The interior door mainly includes a door leaf and a door frame. When the door leaf is closed on the door frame, the edge of the door leaf is sealed with the door frame to achieve the effect of sound insulation and noise reduction. However, the existing seal between the door leaf and the door frame is a passive seal, that is, when the door leaf and the door frame are matched, the seal between the two is squeezed to achieve sealing. However, after long-term use of this sealing structure, the elasticity of the seal fails, so that the deformation is reduced or even no longer deformed, which leads to the sealing effect of the door assembly and the effect of sound insulation and noise reduction.

[0055] Based on the above problems, the present application discloses an active sound insulation and noise reduction door assembly, which uses an inflatable seal. By inflating air into the inflatable seal, the inflatable seal is deformed to achieve active sealing of the gap between the door leaf and the door frame, thereby improving the sealing effect of the door assembly and the sound insulation and noise reduction effect.

[0056] like Figures 1 to 4 As shown, the active sound insulation and noise reduction door assembly in the present application includes: a door leaf 100 , a closing strip 200 , a door frame 300 and an active sealing assembly 400 .

[0057] The door cover 300 is used to be fixed on the door opening of the wall, and the door cover 300 includes a top surface and two side surfaces opposite to each other along the width direction, and the top surface is close to the upper end of the door leaf. The top surface of the door cover 300 includes but is not limited to a flat surface, and can also be a curved surface.

[0058] like Figure 3 As shown, the door frame 300 includes a door frame line 301 and a door stop line 302. The closing strip 200 is fixed on the edge of the door frame line 301, and the door stop line 302 and the door frame line 301 are stacked and arranged along the width direction of the door assembly. The door stop line 302 is fixed on the door frame line 301, and the door stop line 302 protrudes from the door frame line 301, so that the door stop line 302 and the door frame line 301 form a step surface. One side of the door leaf 100 along the width direction of the door leaf 100 is hinged to one side of the door frame line 301 along the width direction of the door assembly. Exemplarily, the door leaf 100 and the door frame line 301 are connected by a hinge, so that the door leaf 100 can rotate around the hinge to realize the action of opening and closing the door. When the door leaf 100 rotates to abut against the step surface, the door leaf 100 is in a closed state. It should be noted that the width direction of the door assembly is Figure 1 The left and right direction in .

[0059] The closing strip 200 is folded relative to the door frame 301. For example, the edge of the door frame 301 has a connecting groove 3011. Figure 4 As shown, the closing strip 200 is an L-shaped line, including a first section 201 and a second section 202, and the first section 201 and the second section 202 are arranged in an L shape, and the first section 201 is used to be inserted into the connection groove 3011 and fixed to the connection groove 3011, so that the closing strip 200 is fixedly connected to the door frame 301. The door frame 301 and the closing strip 200 can be used to wrap three sides of the wall at the door opening along the circumferential direction, thereby improving the aesthetics of the door opening.

[0060] like Figure 3 As shown, the active sealing assembly 400 includes: a corner seal 401 and an inflatable seal 402. The corner seal 401 and the inflatable seal 402 are attached to each other to achieve sealing between the door leaf 100 and the door frame 300.

[0061] like Figures 7 to 9As shown, the inflatable seal 402 in the present application is installed on the door leaf 100 and is arranged along the circumferential side of the door leaf 100. The inflatable seal 402 is an elastic member that can undergo elastic deformation after being inflated.

[0062] In addition, the door assembly in the present application also includes: an inflation system (not shown in the figure) and a control system (not shown in the figure).

[0063] The inflation system is connected to the inflation seal 402 for inflating the inflation seal 402. The control system is connected to the inflation system, and the control system is used to detect the position of the door leaf 100 relative to the door cover 300, and when the door leaf 100 rotates to the closed state, the control system controls the inflation system to start.

[0064] Exemplarily, when the door leaf 100 rotates to abut against the step surface of the door frame 300, the proximity switch is triggered, thereby controlling the start of the inflation system, inflating the inflatable seal 402, and maintaining the inflatable seal 402 at a preset pressure.

[0065] In some embodiments, the corner seal 401 is fixed at the corner of the door frame line 301 of the door frame 300. For example, the corner seal 401 is fixed at the corner of the door frame line 301 and close to the door stop line 302. Taking a rectangular door opening as an example, the corner seal 401 is arranged at the four top corners of the rectangular door frame line 301. The shape, size and material of the corner seal 401 can be set according to different needs.

[0066] The corner seal 401 is used to cover the gap between the corner of the door frame 301 and the inflatable seal 401 of the door leaf 100 .

[0067] The active sound insulation and noise reduction door assembly disclosed in the present application is achieved by arranging an inflatable seal 402 on the door leaf 100. When the door leaf 100 is in a closed state, gas is filled into the inflatable seal 402. The gas pressure is used to form a certain sealing contact pressure on the inflatable seal 402, so that the inflatable seal 402 is in full contact with the door frame 301, thereby achieving active sealing. Combined with the corner seal 401, the gap at the corner between the door leaf 100 and the door frame 301 is blocked, thereby achieving the sound insulation and noise reduction effect of the door assembly.

[0068] like Fig.10 As shown, the inflatable seal 401 is fixed to the circumferential side of the door leaf 100, and the inflatable seal 402 is an arc segment at the top corner of the door leaf 100. Taking the door leaf 100 as a rectangular door leaf as an example, the inflatable seal 402 is an arc segment at the four top corners of the door leaf 100. It should be noted that the circumferential side of the door leaf 100 includes the upper surface, the lower surface and the surfaces on both sides of the door leaf 100. The two surfaces of the door leaf 100 along the thickness direction are the plate surfaces of the door leaf 100.

[0069] like Fig.11 and Fig.12 As shown, the corner seal 401 is a structural member with an arc surface, and the arc surface of the corner seal 401 is used to fit and seal with the arc segment of the inflatable seal 402 on the side facing the outer contour of the door leaf 100. By adopting the above-mentioned matching mode of the arc surface and the arc segment, the inflatable seal 401 and the corner seal 401 can form an active sealing component 400 with a rectangular contour on the same plane. The active sealing component 400 with a rectangular contour is conducive to shielding the gap between the rectangular door leaf 100 and the rectangular door frame 301, and improving the sealing effect of the active sealing component 400.

[0070] See also Fig. 9 As shown, the door frame 301 in some embodiments has a groove 3012 for cooperating with the inflated inflatable seal 402. Exemplarily, when the door leaf 100 is in a closed state, the inflatable seal 402 is opposite to the groove 3012. After the inflatable seal 402 is inflated, the volume of the inflatable seal 402 expands toward the door frame 301 and gradually extends into the groove 3012. The inflatable seal 402 that extends into the groove 3012 is adapted to fit the shape of the groove 3012, so that the inflatable seal 402 seals the gap between the door leaf 100 and the door frame 301.

[0071] By setting a groove 3012 in the door frame 301 and after the inflatable seal 402 expands, the inflatable seal 402 and the groove 3012 are adapted to fit each other in shape, which effectively increases the contact area between the inflatable seal 402 and the door frame 301, thereby improving the sealing effect of the inflatable seal 402.

[0072] The following combination Figure 7 , Figure 8 as well as Fig.10 The installation method of the inflatable seal 402 is described.

[0073] The circumferential side of the door leaf 100 is provided with an edge member 101 , and the edge member 101 includes but is not limited to a metal profile, and exemplarily, an aluminum profile.

[0074] The edge binding member 101 includes a first assembly section 1011 , a second assembly section 1012 and a receiving groove 1013 .

[0075] The first assembly section 1011 is assembled to the first part of the circumferential side surface of the door leaf 100, and the second assembly section 1012 is assembled to the second part of the circumferential side surface of the door leaf 100. It should be noted that the first part of the circumferential side surface of the door leaf 100 is the part of the circumferential side surface of the door leaf 100 away from the door stop line 302 when the door leaf 100 is in a closed state, and the second part is the part of the door leaf 100 close to the door stop line 302, that is, the first assembly section 1011 and the second assembly section 1012 are two parts of the door leaf 100 along the thickness direction.

[0076] In some embodiments, the first assembly section 1011 and the second assembly section 1012 are integrally formed, and the connection between the first assembly section 1011 and the second assembly section 1012 is recessed toward the inside of the door leaf 100 to form a receiving groove 1013, and the inflatable seal 402 is installed in the receiving groove 1013. Exemplarily, the circumferential side surface of the door leaf 100 has a recess, and the connection between the first assembly section 1011 and the second assembly section 1012 is located in the recess.

[0077] The installation methods of the edging member 101 and the door leaf 100 include but are not limited to clamping, bonding or screw connection. The edging member 101 is used to seal the edge of the door leaf 100. In order to improve the stability of the connection between the edging member 101 and the door leaf 100, the two sides of the edging member 101 along the thickness direction are respectively clamped to the outer sides of the two plate surfaces along the thickness of the door leaf 100.

[0078] Specifically, the side of the first assembly section 1011 away from the second assembly section 1012 is clamped to the side of the door leaf 100 away from the door stop line 302 along the thickness direction, and the side of the second assembly section 1012 away from the first assembly section 1011 is clamped to the side of the door leaf 100 close to the door stop line 302 along the thickness direction.

[0079] The outer surface of the receiving groove 1013 formed at the connection between the first assembly section 1011 and the second assembly section 1012 is snap-fitted into the recess of the door leaf 100 .

[0080] The edging member 101 in the present application is clamped to the outer side of the circumferential side edge of the door leaf 100 in the thickness direction to achieve circumferential edging of the side edge of the door leaf 100, thereby improving the aesthetics of the door leaf 100 and also improving the waterproofness of the door leaf 100.

[0081] In some embodiments, the edge member 101 has a snap-fit ​​member, and the door leaf 100 has a slot, and the snap-fit ​​member can be snapped into the slot. Exemplarily, the outer surface of the snap-fit ​​member has barbs, and the barbs can be snapped into the slot. The snap-fit ​​member can be inserted into the slot, but due to the effect of the barbs, the snap-fit ​​member can be prevented from being separated from the slot, thereby improving the stability of the connection between the edge member 101 and the door leaf 100.

[0082] The inflatable seal 402 is installed in the receiving groove 1013, and the installation method of the inflatable seal 402 and the receiving groove 1013 includes but is not limited to bonding or clamping. Exemplarily, both side walls of the receiving groove 1013 along the thickness direction of the door assembly have limiting grooves, and the limiting grooves of the two side walls are staggered, and part of the positions on both sides of the inflatable seal 402 are clamped in the limiting grooves. The staggered arrangement of the two limiting grooves can realize the limiting of the inflatable seal 402 along the thickness direction of the door assembly and along the width direction of the door leaf 100.

[0083] The inflatable seal 402 in the present application is installed in the receiving groove 1013 by means of a position limiting method, which can reduce the area of ​​the inflatable seal 402 and the receiving groove 1013 bonded, and is conducive to the deformation of the inflatable seal 402 during the inflation process. The position limiting method can also effectively reduce the problem of the inflatable seal 402 detaching from the receiving groove 1013.

[0084] Combination Figure 8 and Fig.11 As shown, the step surface of the door frame line 301 and the door stop line 302 of the active sound insulation and noise reduction door assembly is provided with a sealing strip 500, and when the door leaf 100 and the door stop line 302 are at the step surface, the sealing strip 500 seals the gap between the door leaf 100 and the door stop line 302. In some embodiments, the sealing strip 500 is arranged along the circumference of the door stop line 302 to increase the sealing area between the door leaf 100 and the door stop line 302, thereby improving the sealing effect of the door assembly.

[0085] The sealing strip 500 includes but is not limited to being a rubber sealing strip, and the sealing strip 500 includes but is not limited to being bonded to the step surface of the door stop line 302 and the door frame line 301. The sealing strip 500 includes but is not limited to having a sound insulation cavity.

[0086] In the present application, an active sealing component 400 is used to achieve sealing between the door leaf 100 and the door frame line 301, and a sealing strip 500 is used to achieve sealing between the door leaf 100 and the door stop line 302. The use of double sealing effectively improves the sealing effect of the door assembly, which is beneficial to improving the sound insulation and noise reduction effect of the door assembly.

[0087] Based on the above technical solution, combined with Figure 8 As shown, the door leaf 100 in some embodiments includes: a decorative panel 107 , a high-density sound insulation panel 102 , a damping sound insulation felt 103 , a sound insulation buffer layer 104 , a keel 106 and a polymer sound absorbing panel 105 .

[0088] The keel 106 is the main structure of the door leaf 100 and has a certain strength. Optionally, the keel 106 is made of solid wood or metal. The shape and size of the keel 106 can be set according to different needs and are all within the protection range.

[0089] The polymer sound absorbing board 105 may be filled in the gap between the keels 106 . For example, the polymer sound absorbing board 105 includes but is not limited to a polyester fiber sound absorbing board.

[0090] The sound insulation buffer layer 104 is coated on the outer surface of the keel 106 and the polymer sound absorbing board 105. Exemplarily, the sound insulation buffer layer 104 includes but is not limited to EVA foam or polyester fiber sound absorbing board.

[0091] The damping sound insulation felt 103 is coated on the outer surface of the sound insulation buffer layer 104 . The damping sound insulation felt 103 is made of elastic materials such as rubber and plastic, has high density and flexibility, and can effectively absorb and isolate noise vibration.

[0092] The high-density sound insulation board 102 is coated on the outer surface of the damping sound insulation felt 103. Exemplarily, the high-density sound insulation board 102 is made of cellulose fiber or polymer, has high density and quality, and can effectively absorb and isolate noise vibration.

[0093] The decorative board 107 is coated on the outer surface of the high-density sound insulation board 102 . The material of the decorative board 107 includes but is not limited to solid wood board. The shape, size, material and color of the decorative board 107 are not specifically limited.

[0094] The door leaf 100 in the present application uses multiple layers of sound insulation materials with different thicknesses, materials and densities. As can be seen from the cross-section of the door leaf 100 in Figure 8, the door leaf 100 in the present application is composed of 9 layers of materials, which effectively improves the sound insulation effect of the door leaf 100, and thus improves the sound insulation effect of the door assembly.

[0095] The active sound insulation and noise reduction door assembly also includes a pressure detection device for detecting the pressure in the inflatable seal 402, and the pressure detection device is connected to the control system.

[0096] During the use of the door assembly, when the control system detects that the door leaf 100 is in a closed state, the pressure detection device starts to detect the pressure inside the inflatable seal 402, and when the pressure detection device detects that the pressure inside the inflatable seal 402 reaches a preset first pressure value, the control system controls the inflation system to stop working; after a preset time, the pressure detection device detects the pressure inside the inflatable seal 402, and when the pressure detection device detects that the pressure inside the inflatable seal 402 is less than the first preset pressure value, the pressure detection device controls the inflation system to start and inflate the inflatable seal 402 until the pressure detection device detects that the pressure inside the inflatable seal 402 reaches the first preset pressure value.

[0097] It should be noted that the first preset pressure value can be set according to sealing requirements and is within the protection range.

[0098] Combination Fig.13As shown, the inflation system includes a power supply, an inflation pump, a pipeline connecting the inflation pump and the inflation seal 402, a first relay switch for controlling the on-off of the pipeline, a deflation valve connected to the outlet of the inflation seal 402, and a second relay switch for controlling the on-off of the deflation valve. The pressure detection device includes but is not limited to a barometer. The inflation pump can be used to inflate the inflation seal 402 to achieve active sealing of the door assembly.

[0099] During the use of the door assembly, when the control system detects that the door leaf 100 is in a closed state, the pressure gauge starts to detect the pressure inside the inflatable seal 402, and when the pressure detection device detects that the pressure inside the inflatable seal 402 is less than the first preset pressure value, the pressure gauge sends an inflation pressure maintenance signal, controls the first relay switch to start the inflation pump, and uses the inflation pump to inflate the inflatable seal 402 until the pressure value detected by the pressure gauge reaches the first preset pressure value.

[0100] When the control system detects that the door leaf 100 is in the open state, the second relay switch is energized to start the air relief valve, and the first relay switch turns off the air pump. When the pressure gauge detects that the pressure in the inflatable seal 402 is less than the second preset pressure value, the pressure gauge sends a deflation stop signal, controls the second relay to lose power, and closes the pressure relief valve until the control system detects that the door leaf 100 is in the closed state again.

[0101] The second preset pressure value is smaller than the first preset pressure value, and the size of the second preset pressure value can be set according to different needs.

[0102] In some embodiments, in order to ensure the aesthetic appearance of the door leaf 100, the power supply, the air pump, the pipeline, the first relay switch, the second relay switch and the air release valve can be installed inside the door leaf 100 and shielded by the external decorative panel 107. The power supply in the present application includes but is not limited to dry batteries or rechargeable batteries.

[0103] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0104] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An active sound insulation and noise reduction door assembly, characterized in that: include: A door leaf, wherein an inflatable seal is installed on the door leaf, the inflatable seal is arranged along the circumferential side of the door leaf, and the inflatable seal is an elastic member that deforms after being inflated; The door frame includes a door frame line and a door stop line, the door stop line is fixed to the door frame line, and the door stop line and the door frame line are stacked along the width direction of the door assembly, the door stop line and the door frame line form a step surface, and a corner seal is provided at a corner of the door frame line and close to the door stop line, and the corner seal can cooperate with the inflatable seal to form an active sealing component in the circumferential direction of the two when the door leaf is closed on the door frame line; an inflation system, the inflation system being connected to the inflatable seal and being used to inflate the inflatable seal; A control system is connected to the inflation system, and the control system is used to detect the position of the door leaf relative to the door frame, and when the door leaf rotates to a closed state, the control system controls the inflation system to start.

2. The active sound insulation and noise reduction door assembly according to claim 1, characterized in that: Also included is a pressure detection device for detecting the pressure inside the inflatable seal, the pressure detection device being connected to the control system; When the control system detects that the door leaf is in a closed state, the pressure detection device detects the pressure inside the inflatable seal, and when the pressure detection device detects that the pressure inside the inflatable seal reaches a preset pressure value, the control system controls the inflation system to stop working; after a preset time, the pressure detection device detects the pressure inside the inflatable seal, and when the pressure detection device detects that the pressure inside the inflatable seal is less than a preset pressure value, the control system controls the inflation system to start until the pressure inside the inflatable seal reaches the preset pressure value.

3. The active sound insulation and noise reduction door assembly according to claim 2, characterized in that: Also included is a deflation valve connected to the inflatable seal.

4. The active sound insulation and noise reduction door assembly according to claim 1, characterized in that: The inflatable seal is fixed to the circumferential side surface of the door leaf, and the inflatable seal is an arc segment at the top corner of the door leaf; The corner seal is a structural member having an arcuate surface, and the arcuate surface of the corner seal is used to fit and seal with the arcuate section of the inflatable seal on one side facing the outer contour of the door leaf.

5. The active sound insulation and noise reduction door assembly according to claim 4, characterized in that: The door leaf and the door casing are both rectangular structures, and the inflatable seal is the arc segment at the four top corners of the door leaf; The corner seals are arranged at the four top corners of the door frame, and the corner seals correspond to the arc segments one by one.

6. The active sound insulation and noise reduction door assembly according to claim 1, characterized in that: The door casing has a groove for cooperating with the inflatable seal after being inflated.

7. The active sound insulation and noise reduction door assembly according to any one of claims 1 to 6, characterized in that: The circumferential side surface of the door leaf is provided with an edge binding member, the edge binding member has a receiving groove, and the inflatable sealing member is installed in the receiving groove.

8. The active sound insulation and noise reduction door assembly according to claim 7, characterized in that: The edge wrapping piece comprises: A first assembly section, the first assembly section is assembled to a first portion of a circumferential side surface of the door leaf, the first portion being a portion of the circumferential side surface of the door leaf away from the door stop line when the door leaf is in a closed state; The second assembly section is assembled to the second part of the circumferential side of the door leaf, the first part and the second part are two parts along the thickness direction of the door leaf, and the first assembly section is connected to the second assembly section, and the connection between the first assembly section and the second assembly section extends into the recess of the door leaf to form the accommodating groove.

9. The active sound insulation and noise reduction door assembly according to claim 8, characterized in that: A side of the first assembly section away from the second assembly section is clamped to a side of the door leaf away from the door stop line in the thickness direction, and a side of the second assembly section away from the first assembly section is clamped to a side of the door leaf close to the door stop line in the thickness direction; The outer surface of the accommodating groove is snap-fitted into the recess of the door leaf.

10. The active sound insulation and noise reduction door assembly according to claim 9, characterized in that: Both side walls of the accommodating groove along the thickness direction of the door assembly are provided with limiting grooves, and the limiting grooves of the two side walls of the accommodating groove are staggered.

11. The active sound insulation and noise reduction door assembly according to any one of claims 1 to 6, characterized in that: A sealing strip is provided on one side of the step surface formed by the door stop line and the door frame line for contact with the door leaf, and the sealing strip is arranged along the circumference of the door stop line.

12. The active sound insulation and noise reduction door assembly according to any one of claims 1 to 6, characterized in that: The door leaf comprises: keel, A polymer sound-absorbing panel, wherein the polymer sound-absorbing panel is filled between the keels; A sound insulation buffer layer, the sound insulation buffer layer is coated on the outer surface of the keel and the polymer sound absorbing board; Damping sound insulation felt, the damping sound insulation felt is coated on the outer surface of the sound insulation buffer layer; A high-density sound insulation board, wherein the high-density sound insulation board is coated on the outer surface of the damping sound insulation felt; A decorative plate is coated on the outer surface of the high-density sound insulation board.

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