Double-door noise reduction structure

Abstract

The utility model discloses a double-door noise reduction structure and belongs to the field of door noise reduction, the double-door noise reduction structure comprises a first door plate and a second door plate, a cavity is formed in the middle of the first door plate and the middle of the second door plate, a first sound insulation plate and sound insulation cotton are symmetrically mounted on the inner wall of the cavity, and a second sound insulation plate is inserted between the first sound insulation plate and the sound insulation cotton; a maintenance plate is inserted into the inner wall of the cavity, and four insertion holes are symmetrically formed in the outer side of the maintenance plate; the thickness is increased by combining the first door plate and the second door plate, sound waves are effectively absorbed through the first sound insulation plate, the sound insulation cotton and the second sound insulation plate, reflection and transmission are reduced, and therefore the overall indoor sound insulation effect is improved, noise transmission is weakened, meanwhile, an opening of the cavity can be sealed through the overhaul plate, and a gap for sound transmission is isolated; and meanwhile, the first sound insulation plate, the sound insulation cotton and the second sound insulation plate can be supported, and it is guaranteed that the first door plate and the second door plate cannot incline during rotation and can be stably arranged at the inner cavity position of the cavity.

Description

Technical Field

[0001] The present application relates to the technical field of door noise reduction, and in particular to a double-door noise reduction structure. Background Art

[0002] The blower has a complex structure and strict functional area divisions, including the compressed gas inlet and channel, the motor and electrical control cabinet heat dissipation inlet, the oil cooling fan inlet, the whole machine fresh air inlet, the whole machine hot air outlet, etc. This structure can maximize energy efficiency, but it is difficult to make efficient use of space. The air inlet and outlet require too many exposed grids, which makes it easy for the noise of the machine to penetrate, requiring a large number of partitions for noise reduction.

[0003] The existing door structure is simple and the sound insulation and noise reduction effect is insufficient. In addition, the thickness of the existing door is too low, resulting in excessive noise penetration, which easily causes sound pollution to the environment. Therefore, this application proposes a double-door noise reduction structure to solve the above problems. Utility Model Content

[0004] In view of the deficiencies of the prior art, the present invention provides a double-door noise reduction structure, which overcomes the deficiencies of the prior art and aims to solve the problems in the background technology.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions: a double-door noise reduction structure, comprising door panel 1 and door panel 2, a cavity is provided in the middle of door panel 1 and door panel 2, a sound insulation board 1 and sound insulation cotton are symmetrically installed on the inner wall of the cavity, a sound insulation board 2 is inserted between the sound insulation board 1 and the sound insulation cotton, an inspection plate is inserted on the inner wall of the cavity, four insertion holes are symmetrically provided on the outer side of the inspection plate, a receiving groove is provided on the inner wall of the door panel 2, a fixed plate is fixedly installed on the inner wall of the receiving groove, one end of a spring is fixedly connected to the outer side of the fixed plate, the other end of the spring is fixedly connected to a cylinder, a pin is fixedly connected to the side of the cylinder away from the spring, and a movable plate is fixedly connected to the outer edge of the cylinder.

[0006] As a preferred embodiment, the inner wall of the cavity is provided with a sliding hole adapted to the outer diameter of the latch and communicating with the accommodating groove, and the latch is slidably connected to the inner wall of the sliding hole.

[0007] By adopting the above technical solution, the pin can slide to achieve its position movement, thereby facilitating the removal of the inspection plate from the inner wall of the cavity after it is disengaged from the inner wall position of the socket, and then the sound insulation board 1, sound insulation cotton and sound insulation board 2 can be disassembled and cleaned.

[0008] As a preferred embodiment, a sliding groove is opened on the outer side of the second door panel, and the sliding groove is communicated with the receiving groove, the movable plate is slidably connected to the inner wall of the sliding groove, and the thickness of the movable plate is consistent with the height of the inner wall of the sliding groove.

[0009] By adopting the above technical solution, the dragging pin can slide on the inner wall of the slide groove, which can drive the cylinder and the pin to move and realize the movement of the position. Moreover, the thickness of the movable plate is consistent with the height of the inner wall of the slide groove, so that the movable plate will not shake randomly when sliding on the inner wall of the slide groove, thereby ensuring that it can move in a parallel state.

[0010] As a preferred embodiment, a circular hole is provided on a side of the movable plate away from the cylinder, and the outer side of the movable plate is in the same plane as the outer sides of the first door panel and the second door panel.

[0011] By adopting the above technical solution, the auxiliary tool can be inserted into the inner wall of the circular hole and then the movable plate can be dragged to move, which improves the convenience of movement. In addition, the outer side of the movable plate is in the same plane as the outer sides of door panel one and door panel two, so that the movable plate will not be exposed to the outside, thereby ensuring that the movable plate will not contact and rub against the door frame when closing the door.

[0012] As a preferred embodiment, the number of the accommodating grooves, fixed plates, springs, cylinders, latches, movable plates, circular holes and slide grooves is four, and the four accommodating grooves, fixed plates, springs, cylinders, latches, movable plates, circular holes and slide grooves are symmetrically arranged on the inner walls of door panel one and door panel two, respectively, and the four latches are inserted into the inner walls of the four holes.

[0013] By adopting the above technical solution, the access panel can be positioned from four different directions, thereby ensuring that the access panel can be stably positioned on the inner wall of the cavity and will not easily shake or deviate.

[0014] As a preferred embodiment, the sum of the thickness of the sound insulation board 1, the sound insulation cotton and the sound insulation board 2 is consistent with the inner wall width of the cavity, the door panel 1 and the door panel 2 are fitted together, and a sealing strip is bonded to the inner side of the connection between the door panel 1 and the door panel 2.

[0015] By adopting the above technical solution, after the sound insulation board 1, the sound insulation cotton and the sound insulation board 2 are installed on the inner wall of the cavity, it can be ensured that there will be no gaps, the sealing is guaranteed, and the effect of isolating from external noise is guaranteed.

[0016] As a preferred embodiment, the inner wall diameter of the receiving groove is consistent with the outer diameter of the cylinder, the cylinder is slidably connected to the inner wall of the receiving groove, and the end of the pin away from the cylinder is inserted into the inner wall of the socket.

[0017] By adopting the above technical solution, the cylinder can move stably on the inner wall of the accommodating groove, ensuring that the position will not be easily offset during movement, and the end of the pin away from the cylinder is inserted into the inner wall of the socket, so that the maintenance plate can be positioned after being installed on the inner wall of the cavity, ensuring that the maintenance plate will not be easily detached.

[0018] As a preferred embodiment, the four sides of the inspection plate are in contact with the inner wall of the cavity, and the inner side of the inspection plate is in contact with the outer sides of the first sound insulation board, the sound insulation cotton and the second sound insulation board.

[0019] By adopting the above technical solution, the opening of the cavity can be sealed to isolate the gap for sound transmission. At the same time, the sound insulation board 1, the sound insulation cotton and the sound insulation board 2 can be supported to ensure that they will not tilt.

[0020] Beneficial effects of this application:

[0021] 1. This double-door noise reduction structure increases the thickness by combining door panel 1 and door panel 2 and effectively absorbs sound waves through sound insulation board 1, sound insulation cotton and sound insulation board 2, reducing reflection and transmission, thereby improving the overall sound insulation effect in the room and weakening the propagation of noise. At the same time, the access plate can be used to seal the opening of the cavity to isolate the gap for sound transmission. At the same time, the sound insulation board 1, sound insulation cotton and sound insulation board 2 can be supported to ensure that door panel 1 and door panel 2 will not tilt when rotating and can be stably set in the inner cavity position of the cavity.

[0022] 2. This double-door noise reduction structure is plugged into the inner wall of the circular hole through an auxiliary tool, so that it is convenient to drag the movable plate to drive the pin and the cylinder to move until the pin is moved out of the inner wall position of the insertion hole, and the inspection plate can be removed from the inner wall position of the cavity, so that the sound insulation board 1, the sound insulation cotton and the sound insulation board 2 can be taken out to the outside, and the dust adhering to the sound insulation board 1, the sound insulation cotton and the sound insulation board 2 can be cleaned to prevent the accumulation of dust from affecting the performance and life of the sound insulation board 1, the sound insulation cotton and the sound insulation board 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the three-dimensional structure of this application;

[0024] Figure 2 This is a schematic diagram of the cross-sectional structure of the door panel 1 and door panel 2 of the present application;

[0025] Figure 3 This is a partially enlarged structural diagram of the second cross-section of the door panel of this application;

[0026] Figure 4 This is a schematic diagram of the partially enlarged structure of the application.

[0027] Numbers in the figure: 1. Door panel one; 2. Door panel two; 3. Cavity; 4. Sound insulation board one; 5. Sound insulation cotton; 6. Sound insulation board two; 7. Inspection panel; 8. Socket; 9. Receiving slot; 10. Fixed plate; 11. Spring; 12. Cylinder; 13. Latch; 14. Moving plate; 15. Round hole; 16. Slide slot. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0029] Reference Figure 1-4 A double-door noise reduction structure comprises a door panel 1 and a door panel 2, a cavity 3 being provided in the middle of the door panel 1 and the door panel 2, a sound insulation board 4 and a sound insulation cotton 5 being symmetrically installed on the inner wall of the cavity 3, a sound insulation board 2 6 being inserted between the sound insulation board 4 and the sound insulation cotton 5, an access panel 7 being inserted into the inner wall of the cavity 3, four insertion holes 8 being symmetrically provided on the outer side of the access panel 7, a receiving groove 9 being provided on the inner wall of the door panel 2 2, a fixing plate 10 being fixedly installed on the inner wall of the receiving groove 9, one end of a spring 11 being fixedly connected to the outer side of the fixing plate 10, a cylinder 12 being fixedly connected to the other end of the spring 11, a latch 13 being fixedly connected to the side of the cylinder 12 away from the spring 11, and a movable plate 14 being fixedly connected to the outer edge of the cylinder 12.

[0030] See Figure 3 The inner wall of the cavity 3 is provided with a sliding hole adapted to the outer diameter of the pin 13 and communicated with the accommodating groove 9. The pin 13 is slidably connected to the inner wall of the sliding hole, so that the pin 13 can slide to achieve its position movement, thereby facilitating its separation from the inner wall position of the socket 8 and removing the inspection plate 7 from the inner wall of the cavity 3, and then disassembling and cleaning the sound insulation board 1 4, the sound insulation cotton 5 and the sound insulation board 2 6.

[0031] See Figure 3 A sliding groove 16 is provided on the outer side of the door panel 2, and the sliding groove 16 is communicated with the accommodating groove 9. The movable plate 14 is slidably connected to the inner wall of the sliding groove 16. The thickness of the movable plate 14 is consistent with the height of the inner wall of the sliding groove 16, so that the dragging pin 13 can slide on the inner wall of the sliding groove 16 to drive the cylinder 12 and the pin 13 to move to achieve position movement. Moreover, the thickness of the movable plate 14 is consistent with the height of the inner wall of the sliding groove 16, so that the movable plate 14 will not shake arbitrarily when sliding on the inner wall of the sliding groove 16, ensuring that it can move in a parallel state.

[0032] See Figure 3A circular hole 15 is provided on the side of the movable plate 14 away from the cylinder 12, and the outer side of the movable plate 14 is in the same plane as the outer sides of the door panels 1 and 2, so that an auxiliary tool can be inserted into the inner wall of the circular hole 15 and then the movable plate 14 can be dragged to move, thereby improving the convenience of movement. Moreover, by making the outer side of the movable plate 14 in the same plane as the outer sides of the door panels 1 and 2, the movable plate 14 will not be exposed to the outside, thereby ensuring that the movable plate 14 will not contact and rub against the door frame when closing the door.

[0033] See Figure 3 and Figure 4 The number of the accommodating grooves 9, the fixed disk 10, the spring 11, the cylinder 12, the latch 13, the movable plate 14, the circular hole 15 and the slide groove 16 are all four, and the four accommodating grooves 9, the fixed disk 10, the spring 11, the cylinder 12, the latch 13, the movable plate 14, the circular hole 15 and the slide groove 16 are symmetrically arranged on the inner walls of the door panel 1 and the door panel 2 2 respectively, and the four latches 13 are inserted into the inner walls of the four insertion holes 8, so that the inspection plate 7 can be positioned from four different directions, thereby ensuring that the inspection plate 7 can be stably positioned on the inner wall of the cavity 3, and ensuring that it will not shake or deviate easily.

[0034] See Figure 2 The sum of the thickness of the sound insulation board 4, the sound insulation cotton 5 and the sound insulation board 2 6 is consistent with the inner wall width of the cavity 3. The door panel 1 and the door panel 2 2 are fitted together, and a sealing strip is bonded to the inner side of the connection between the door panel 1 and the door panel 2 2, so that the sound insulation board 1 4, the sound insulation cotton 5 and the sound insulation board 2 6 can be installed to the inner wall position of the cavity 3 to ensure that there is no gap therebetween, thereby ensuring the sealing and thus ensuring the effect of isolating from external noise.

[0035] See Figure 3 The inner wall diameter of the accommodating groove 9 is consistent with the outer edge diameter of the cylinder 12. The cylinder 12 is slidably connected to the inner wall of the accommodating groove 9. The end of the pin 13 away from the cylinder 12 is inserted into the inner wall of the socket 8, so that the cylinder 12 can move stably on the inner wall position of the accommodating groove 9, ensuring that the position will not be easily offset during movement. The end of the pin 13 away from the cylinder 12 is inserted into the inner wall of the socket 8, so that the access panel 7 can be positioned after it is installed to the inner wall position of the cavity 3, ensuring that the access panel 7 will not be easily detached.

[0036] See Figure 2 and Figure 4 The four sides of the inspection plate 7 are in contact with the inner wall of the cavity 3, and the inner side of the inspection plate 7 is in contact with the outer sides of the sound insulation board 1 4, the sound insulation cotton 5 and the sound insulation board 2 6, so that the opening of the cavity 3 can be sealed to isolate the gap for sound transmission. At the same time, the sound insulation board 1 4, the sound insulation cotton 5 and the sound insulation board 2 6 can be supported to ensure that they will not tilt.

[0037] Working principle: When using this device, the sound insulation board 1 4, the sound insulation cotton 5 and the sound insulation board 2 6 can effectively absorb sound waves, reduce reflection and transmission, and thus improve the overall sound insulation effect. At the same time, the access plate 7 can be used to seal the opening of the cavity 3 to isolate the gap for sound transmission. At the same time, the sound insulation board 1 4, the sound insulation cotton 5 and the sound insulation board 2 6 can be supported to ensure that the door panel 1 and the door panel 2 will not tilt when rotating. They can be stably set in the inner cavity position of the cavity 3. By plugging the auxiliary tool into the inner wall of the circular hole 15, it is convenient to drag the movable plate 14 to drive the latch 13 and the cylinder 12 to move until the latch 13 is moved. By detaching from the inner wall position of the socket 8, the inspection plate 7 can be taken out from the inner wall position of the cavity 3, so that the sound insulation board 1 4, the sound insulation cotton 5 and the sound insulation board 2 6 can be taken out to the outside, and the dust adhering to the sound insulation board 1 4, the sound insulation cotton 5 and the sound insulation board 2 6 can be cleaned to prevent the accumulation of dust from affecting the performance and life of the sound insulation board 1 4, the sound insulation cotton 5 and the sound insulation board 2 6. When installing the inspection plate 7, the pin 13 can be first aligned with the position of the round hole 15, and then the pin 13 can be plugged into the inner wall of the socket 8 with the help of the reset force of the spring 11, thereby realizing the positioning of the inspection plate 7, and no screws need to be installed, which improves convenience.

[0038] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "two ends," "one end," "the other end," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0040] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present invention. Those skilled in the art may make various modifications and variations to the present invention based on the spirit and principles of the present invention, and such modifications and variations are also within the scope of the present invention.

Claims

1. A double-door noise reduction structure, comprising a door panel 1 (1) and a door panel 2 (2), characterized in that: A cavity (3) is provided in the middle of the door panel 1 (1) and the door panel 2 (2), and a sound insulation board 1 (4) and a sound insulation cotton (5) are symmetrically installed on the inner wall of the cavity (3), and a sound insulation board 2 (6) is inserted between the sound insulation board 1 (4) and the sound insulation cotton (5). An inspection plate (7) is inserted into the inner wall of the cavity (3), and four insertion holes (8) are symmetrically provided on the outer side of the inspection plate (7). A receiving groove (9) is provided on the inner wall of the door panel 2 (2), and a fixed plate (10) is fixedly installed on the inner wall of the receiving groove (9), and one end of a spring (11) is fixedly connected to the outer side of the fixed plate (10), and the other end of the spring (11) is fixedly connected to a cylinder (12), and a latch (13) is fixedly connected to the side of the cylinder (12) away from the spring (11), and a movable plate (14) is fixedly connected to the outer edge of the cylinder (12).

2. A double-door noise reduction structure according to claim 1, characterized in that: The inner wall of the cavity (3) is provided with a sliding hole that is adapted to the outer diameter of the latch (13) and communicates with the accommodating groove (9), and the latch (13) is slidably connected to the inner wall of the sliding hole.

3. The double-door noise reduction structure according to claim 1, characterized in that: A sliding groove (16) is provided on the outer side of the second door panel (2), and the sliding groove (16) is communicated with the receiving groove (9). The movable plate (14) is slidably connected to the inner wall of the sliding groove (16), and the thickness of the movable plate (14) is consistent with the height of the inner wall of the sliding groove (16).

4. The double-door noise reduction structure according to claim 1, characterized in that: A circular hole (15) is provided on a side of the movable plate (14) away from the cylinder (12), and the outer side of the movable plate (14) is in the same plane as the outer sides of the first door panel (1) and the second door panel (2).

5. The double-door noise reduction structure according to claim 1, characterized in that: The number of the receiving groove (9), the fixed plate (10), the spring (11), the cylinder (12), the latch (13), the movable plate (14), the circular hole (15) and the slide groove (16) is four, and the four receiving grooves (9), the fixed plate (10), the spring (11), the cylinder (12), the latch (13), the movable plate (14), the circular hole (15) and the slide groove (16) are symmetrically arranged on the inner walls of the door panel 1 (1) and the door panel 2 (2), respectively, and the four latches (13) are plugged into the inner walls of the four insertion holes (8).

6. The double-door noise reduction structure according to claim 1, characterized in that: The thickness of the sound insulation board 1 (4), the sound insulation cotton (5) and the sound insulation board 2 (6) is consistent with the width of the inner wall of the cavity (3). The door panel 1 (1) and the door panel 2 (2) are fitted together, and a sealing strip is bonded to the inner side of the connection between the door panel 1 (1) and the door panel 2 (2).

7. The double-door noise reduction structure according to claim 1, characterized in that: The inner wall diameter of the receiving groove (9) is consistent with the outer diameter of the cylinder (12), the cylinder (12) is slidably connected to the inner wall of the receiving groove (9), and the end of the pin (13) away from the cylinder (12) is inserted into the inner wall of the socket (8).

8. The double-door noise reduction structure according to claim 1, characterized in that: The four sides of the inspection plate (7) are in contact with the inner wall of the cavity (3), and the inner side of the inspection plate (7) is in contact with the outer sides of the first sound insulation board (4), the sound insulation cotton (5) and the second sound insulation board (6).

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