Active sound insulation and noise reduction door assembly

Abstract

The utility model discloses an active sound insulation and noise reduction door assembly, which comprises a door pocket, a door stop line, a sound insulation layer, a sound insulation layer, a sound insulation layer and a noise reduction layer, and is characterized in that the door pocket comprises a door pocket line and a door stop line, the door stop line is fixed on the door pocket line; when the door leaf rotates to be attached to the circumferential direction of the door pocket, the door leaf is in a closed state, an inflation sealing piece is installed on the door leaf, the inflation sealing piece is arranged along the circumferential side face of the door leaf, and the inflation sealing piece is an elastic piece which can deform towards the outer side of the circumferential side face of the door leaf after being inflated. The inflatable sealing piece can actively seal a gap between the door leaf and the door pocket line; the inflation system is connected with the inflation sealing piece and used for inflating the inflation sealing piece. According to the door assembly, the inflation sealing piece is arranged on the door leaf, when the door leaf is in the closed state, the inflation sealing piece is inflated with gas, the gas pressure enables the inflation sealing piece to form certain sealing contact pressure, the inflation sealing piece makes full contact with the door pocket line, active sealing is achieved, and the sound insulation and noise reduction effects of the door assembly are achieved.

Description

Technical Field

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

[0002] An interior door is a door installed at the entrance of an indoor room. It is a general term for all room doors and can also be called a home door. Interior doors are defined by their purpose; their counterpart is an "exterior door," or entrance door—commonly known as a security door or safety door.

[0003] Interior doors primarily consist of a door leaf and a door frame. When the door leaf is closed against the door frame, the edge of the door leaf and the door frame form a seal, which can achieve sound insulation and noise reduction. However, the existing seal between the door leaf and door frame is passive, meaning that the seal is achieved by squeezing the seal between the door leaf and door frame when they fit together. However, after long-term use, this sealing structure loses its elasticity, resulting in reduced or even no deformation, which in turn affects the sealing effect of the door assembly and the sound insulation and noise reduction effects.

[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. Utility Model Content

[0005] In view of this, the utility model 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 objectives, the present invention provides the following technical solutions:

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

[0008] The door cover comprises a door cover line and a door stop line, wherein the door stop line is fixed to the door cover line and forms a step surface;

[0009] The door leaf is in a closed state when the door leaf is rotated to fit circumferentially with the door frame. An inflatable seal is installed on the door leaf, and the inflatable seal is arranged along the circumferential side surface of the door leaf. The inflatable seal is an elastic member that can be deformed toward the outside of the circumferential side surface of the door leaf after being inflated. When the door leaf is closed on the door frame, the inflatable seal can actively seal the gap between the door leaf and the door frame.

[0010] An inflation system is connected to the inflatable seal and is used to inflate the inflatable seal.

[0011] 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-shaped segment at the top corner of the door leaf;

[0012] A corner seal is provided at the corner of the door frame and close to the door stop line. The corner seal is a structural member with an arc-shaped surface, and the arc-shaped surface of the corner seal is used to fit and seal with the arc-shaped section of the inflatable seal on the side toward the outer contour of the door leaf. 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 to the door frame.

[0013] 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;

[0014] The corner seals are provided at the four top corners of the door frame, and the corner seals correspond to the arc segments one by one.

[0015] 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.

[0016] Preferably, in the above-mentioned active sound insulation and noise reduction door assembly, the circumferential side surface of the door leaf is provided with an edging piece, the edging piece has a receiving groove, and the inflatable seal is installed in the receiving groove.

[0017] Preferably, in the above-mentioned active sound insulation and noise reduction door assembly, the edge member includes:

[0018] a first assembly section, the first assembly section being 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;

[0019] 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.

[0020] 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;

[0021] The outer surface of the accommodating groove is clamped in the recess of the door leaf.

[0022] 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.

[0023] Preferably, in the above-mentioned active sound insulation and noise reduction door assembly, a sealing strip is provided on the 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.

[0024] Preferably, in the above-mentioned active sound insulation and noise reduction door assembly, the door leaf includes:

[0025] keel,

[0026] A polymer sound-absorbing panel, wherein the polymer sound-absorbing panel is filled between the keels;

[0027] a sound insulation buffer layer, the sound insulation buffer layer being coated on the outer surface of the keel and the polymer sound absorbing board;

[0028] Damping sound insulation felt, the damping sound insulation felt is coated on the outer surface of the sound insulation buffer layer;

[0029] A high-density sound insulation board, the high-density sound insulation board is coated on the outer surface of the damping sound insulation felt;

[0030] A decorative panel is coated on the outer surface of the high-density sound insulation panel.

[0031] An embodiment of the utility model discloses an active sound insulation and noise reduction door assembly, in which an inflatable seal is provided on the door leaf. When the door leaf is in a closed state, gas is filled into the inflatable seal, and the gas pressure is utilized to form a certain sealing contact pressure on the inflatable seal, so that the inflatable seal is in full contact with the door casing, thereby realizing active sealing and achieving the sound insulation and noise reduction effect of the door assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0033] Figure 1 This is a structural diagram of an active sound insulation and noise reduction door assembly disclosed in an embodiment of the present utility model;

[0034] Figure 2This is a disassembled diagram of the active sound insulation and noise reduction door assembly disclosed in an embodiment of the present utility model;

[0035] Figure 3 for Figure 2 A partial enlarged view of center C;

[0036] Figure 4 for Figure 2 A partial enlarged view of middle D;

[0037] Figure 5 This is an exploded view of the partial structure of the active sound insulation and noise reduction door assembly disclosed in an embodiment of the present utility model;

[0038] Figure 6 for Figure 5 A partial enlarged view of middle E;

[0039] Figure 7 for Figure 1 Cross-sectional view in the AA direction;

[0040] Figure 8 for Figure 1 Cross-sectional view in the middle BB direction;

[0041] Figure 9 Schematic diagram of different states of the inflatable seal of the active sound insulation and noise reduction door assembly disclosed in an embodiment of the present utility model;

[0042] Figure 10 Schematic diagram of the partial structure of the door leaf of the active sound insulation and noise reduction door assembly disclosed in an embodiment of the present utility model;

[0043] Figure 11 This is a schematic diagram of the partial structure of the door frame of the active sound insulation and noise reduction door assembly disclosed in an embodiment of the present utility model, close to the ground;

[0044] Figure 12 This is a partial structural diagram of the door frame of the active sound insulation and noise reduction door assembly disclosed in an embodiment of the present utility model, with the door frame away from the ground;

[0045] Figure 13 This is a control principle diagram of the inflatable seal disclosed in the embodiment of the present utility model. DETAILED DESCRIPTION

[0046] The utility model discloses an active sound insulation and noise reduction door assembly, which can realize active sealing of the gap between the door leaf and the door cover, thereby improving the sealing effect of the door assembly and the sound insulation and noise reduction effect.

[0047] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0048] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0049] An interior door is a door installed at the entrance of an indoor room. It is a general term for all room doors and can also be called a home door. Interior doors are defined by their purpose; their counterpart is an "exterior door," or entrance door—commonly known as a security door or safety door.

[0050] Interior doors primarily consist of a door leaf and a door frame. When the door leaf is closed against the door frame, the edge of the door leaf and the door frame form a seal, which can achieve sound insulation and noise reduction. However, the existing seal between the door leaf and door frame is passive, meaning that the seal is achieved by squeezing the seal between the door leaf and door frame when they fit together. However, after long-term use, this sealing structure loses its elasticity, resulting in reduced or even no deformation, which in turn affects the sealing effect of the door assembly and the sound insulation and noise reduction effects.

[0051] Based on the above problems, the present application discloses an active sound insulation and noise reduction door assembly, which uses an inflatable seal that can be inflated. 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.

[0052] 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.

[0053] The door cover 300 is used to be fixed to the door opening of the wall. The door cover 300 includes a top surface and two side surfaces opposite to each other along the width direction. 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.

[0054] like Figure 3As shown, the door frame 300 includes a door frame line 301 and a door stop line 302. The closing strip 200 is fixed to the edge of the door frame line 301, and the door stop line 302 and the door frame line 301 are stacked along the width direction of the door assembly. The door stop line 302 is fixed to 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. The door leaf 100 is hinged to one side of the door frame line 301 along the width direction of the door leaf 100 and the door frame line 301 along the width direction of the door assembly. For example, the door leaf 100 is connected to the door frame line 301 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 Left and right direction in .

[0055] 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. The first section 201 and the second section 202 are arranged in an L-shape. The first section 201 is inserted into the connecting groove 3011 and fixed to the connecting groove 3011, thereby achieving a fixed connection between the closing strip 200 and the door frame 301. The door frame 301 and the closing strip 200 can be used to wrap around three sides of the wall at the door opening along the circumferential direction, improving the aesthetics of the door opening.

[0056] 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 cover 300.

[0057] like Figures 7 to 9 As 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.

[0058] 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).

[0059] The inflation system is connected to the inflatable seal 402 and is used to inflate the inflatable seal 402. The control system is connected to the inflation system and is used to detect the position of the door leaf 100 relative to the door frame 300. When the door leaf 100 rotates to the closed state, the control system controls the inflation system to start.

[0060] For example, when the door leaf 100 rotates to abut against the step surface of the door cover 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.

[0061] In some embodiments, corner seals 401 are fixed to the corners of the door frame 301 of the door frame 300. For example, corner seals 401 are fixed to the corners of the door frame 301 and near the door stop line 302. For example, in a rectangular door opening, corner seals 401 are arranged at the four corners of the rectangular door frame 301. The shape, size, and material of corner seals 401 can be set according to different needs.

[0062] 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.

[0063] 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 to block the gap at the corner of the door leaf 100 and the door frame 301, the sound insulation and noise reduction effect of the door assembly is achieved.

[0064] like Figure 10 As shown, the inflatable seal 401 is fixed to the circumferential side surface of the door leaf 100, and the inflatable seal 402 is an arc-shaped segment at the top corners 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-shaped segment at each of the four top corners of the door leaf 100. It should be noted that the circumferential side surface of the door leaf 100 includes the upper surface, lower surface, and side surfaces 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.

[0065] like Figure 11 and Figure 12 As shown, corner seal 401 is a structural component with an arcuate surface, and this arcuate surface of corner seal 401 is used to form a seal with the arcuate segment of inflatable seal 402 on the side facing the outer contour of door leaf 100. The above-described arrangement of the arcuate surface and arcuate segment allows the inflatable seal 401 and corner seal 401 to form an active sealing assembly 400 with a coplanar rectangular profile. This rectangular profile of active sealing assembly 400 facilitates shielding the gap between the rectangular door leaf 100 and the rectangular door casing 301, thereby enhancing the sealing effectiveness of active sealing assembly 400.

[0066] See also Figure 9As shown, in some embodiments, the door casing 301 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 casing 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 inflatable seal 402, thereby achieving the purpose of the inflatable seal 402 sealing the gap between the door leaf 100 and the door casing 301.

[0067] By setting a groove 3012 in the door frame 301, and after the inflatable seal 402 expands, the inflatable seal 402 fits the shape of the groove 3012, effectively increasing the contact area between the inflatable seal 402 and the door frame 301, thereby improving the sealing effect of the inflatable seal 402.

[0068] The following combination Figure 7 、 Figure 8 as well as Figure 10 The installation method of the inflatable seal 402 will be described.

[0069] 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.

[0070] The edging piece 101 includes a first assembly section 1011 , a second assembly section 1012 and a receiving groove 1013 .

[0071] The first assembly section 1011 is assembled to the first portion of the circumferential side surface of the door leaf 100, and the second assembly section 1012 is assembled to the second portion of the circumferential side surface of the door leaf 100. It should be noted that the first portion of the circumferential side surface of the door leaf 100 is the portion 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 portion is the portion 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 portions of the door leaf 100 along the thickness direction.

[0072] 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 interior 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.

[0073] The edging member 101 may be mounted on the door leaf 100 by, but is not limited to, snap-fitting, gluing, or screwing. The edging member 101 is used to seal the edge of the door leaf 100. To improve the stability of the connection between the edging member 101 and the door leaf 100, for example, the edging member 101 is snap-fitted to the outer sides of the two thickness-direction panels of the door leaf 100.

[0074] 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.

[0075] The outer surface of the accommodating 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 .

[0076] The edging piece 101 in the present application is clamped to the outer side of the circumferential side edge of the door leaf 100 along the thickness direction, thereby achieving circumferential edging of the side edge of the door leaf 100, improving the aesthetics of the door leaf 100, and also improving the waterproofness of the door leaf 100.

[0077] In some embodiments, the edging member 101 includes a snap-fit ​​member, and the door leaf 100 includes a slot into which the snap-fit ​​member can be snapped. For example, the snap-fit ​​member may have barbs on its outer surface that can snap into the slot. While the snap-fit ​​member can be inserted into the slot, the barbs prevent it from disengaging, thereby improving the stability of the connection between the edging member 101 and the door leaf 100.

[0078] The inflatable seal 402 is installed within the receiving groove 1013. Methods for mounting the inflatable seal 402 to the receiving groove 1013 include, but are not limited to, bonding or snapping. For example, both sidewalls of the receiving groove 1013 along the thickness of the door assembly have retaining grooves, with the retaining grooves on the two sidewalls being staggered. Portions of the two sides of the inflatable seal 402 are snapped into the retaining grooves. The staggered arrangement of the two retaining grooves allows the inflatable seal 402 to be positioned along the thickness of the door assembly and along the width of the door leaf 100.

[0079] The inflatable seal 402 of the present application is installed in the receiving groove 1013 using a position-limiting method, which can reduce the area of ​​adhesion between the inflatable seal 402 and the receiving groove 1013, and facilitate deformation of the inflatable seal 402 during inflation. The use of a position-limiting method can also effectively reduce the problem of the inflatable seal 402 being separated from the receiving groove 1013.

[0080] Combine Figure 8 and Figure 11As shown, a sealing strip 500 is provided at the stepped surface between the door frame 301 and the door stop 302 of the active sound insulation and noise reduction door assembly. When the door leaf 100 and the door stop 302 are at the stepped surface, the sealing strip 500 seals the gap between the door leaf 100 and the door stop 302. In some embodiments, the sealing strip 500 is arranged along the circumference of the door stop 302 to increase the sealing area between the door leaf 100 and the door stop 302, thereby improving the sealing effect of the door assembly.

[0081] 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 stepped surface of the door stop line 302 and the door casing line 301. The sealing strip 500 includes but is not limited to having a sound insulation cavity.

[0082] In this application, an active sealing component 400 is used to achieve sealing between the door leaf 100 and the door frame 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.

[0083] On the basis of the above technical solutions, 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 .

[0084] 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.

[0085] The polymer sound-absorbing panels 105 may be filled in the gaps between the keels 106 . For example, the polymer sound-absorbing panels 105 include but are not limited to polyester fiber sound-absorbing panels.

[0086] The sound insulation buffer layer 104 is coated on the outer surface of the keel 106 and the polymer sound absorbing board 105. For example, the sound insulation buffer layer 104 includes but is not limited to EVA foam or polyester fiber sound absorbing board.

[0087] 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.

[0088] The high-density sound insulation board 102 is coated on the outer surface of the damping sound insulation felt 103. For example, 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.

[0089] The decorative panel 107 is covered on the outer surface of the high-density sound insulation panel 102 . The material of the decorative panel 107 includes but is not limited to solid wood board. There is no specific limitation on the shape, size, material and color of the decorative panel 107 .

[0090] 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.

[0091] The active sound insulation and noise reduction door assembly further 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.

[0092] 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 first 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 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.

[0093] It should be noted that the first preset pressure value can be set according to sealing requirements and is within the protection range.

[0094] Combine Figure 13 As shown, the inflation system includes a power supply, an inflation pump, a pipeline connecting the inflation pump and the inflatable seal 402, a first relay switch that controls the on / off switching of the pipeline, a relief valve connected to the outlet of the inflatable seal 402, and a second relay switch that controls the on / off switching of the relief valve. Pressure detection devices include, but are not limited to, a barometer. The inflation pump can be used to inflate the inflatable seal 402, achieving active sealing of the door assembly.

[0095] 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.

[0096] When the control system detects that the door leaf 100 is in the open state, the second relay switch is energized, causing the air relief valve to start, and at the same time the first relay switch turns off the inflation 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.

[0097] 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.

[0098] In some embodiments, to ensure the aesthetic appearance of the door leaf 100, the power supply, air pump, pipeline, first relay switch, second relay switch, and air release valve can be installed inside the door leaf 100 and shielded by the external decorative panel 107. The power supply in this application includes but is not limited to dry cell batteries or rechargeable batteries.

[0099] 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.

[0100] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily 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 is not limited to the embodiments shown herein but is intended to conform 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: The door cover comprises a door cover line and a door stop line, wherein the door stop line is fixed to the door cover line and forms a step surface; The door leaf is in a closed state when the door leaf is rotated to fit circumferentially with the door frame. An inflatable seal is installed on the door leaf, and the inflatable seal is arranged along the circumferential side surface of the door leaf. The inflatable seal is an elastic member that can be deformed toward the outside of the circumferential side surface of the door leaf after being inflated. When the door leaf is closed on the door frame, the inflatable seal can actively seal the gap between the door leaf and the door frame. An inflation system is connected to the inflatable seal and is used to inflate the inflatable seal.

2. 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-shaped segment at the top corner of the door leaf; A corner seal is provided at the corner of the door frame and close to the door stop line. The corner seal is a structural member with an arc-shaped surface, and the arc-shaped surface of the corner seal is used to fit and seal with the arc-shaped section of the inflatable seal on the side toward the outer contour of the door leaf. 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 to the door frame.

3. The active sound insulation and noise reduction door assembly according to claim 2, characterized in that: The door leaf and the door casing are both rectangular structures, and the inflatable seal is in the form of arc segments at the four corners of the door leaf; The corner seals are provided at the four top corners of the door frame, and the corner seals correspond to the arc segments one by one.

4. 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 inflation.

5. The active sound insulation and noise reduction door assembly according to any one of claims 1 to 4, characterized in that: The circumferential side surface of the door leaf is provided with an edge member, the edge member has a receiving groove, and the inflatable sealing member is installed in the receiving groove.

6. The active sound insulation and noise reduction door assembly according to claim 5, characterized in that: The edge wrapping piece includes: a first assembly section, the first assembly section being 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.

7. The active sound insulation and noise reduction door assembly according to claim 6, characterized in that: The side of the first assembly section away from the second assembly section is clamped to the side of the door leaf away from the door stop line in the thickness direction, and the side of the second assembly section away from the first assembly section is clamped to the side of the door leaf close to the door stop line in the thickness direction; The outer surface of the accommodating groove is clamped in the recess of the door leaf.

8. The active sound insulation and noise reduction door assembly according to claim 7, 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.

9. The active sound insulation and noise reduction door assembly according to any one of claims 1 to 4, 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.

10. The active sound insulation and noise reduction door assembly according to any one of claims 1 to 4, 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 being 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; and a decorative board, wherein the decorative board is coated on the outer surface of the high-density sound insulation board.

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