Laboratory soundproof window seal structure

Abstract

The utility model relates to sound insulation window technical field especially for laboratory sound insulation window sealing structure, including frame body, the inside of frame body is set up and installs the space, frock, the frock positioner setting is in the installation space, just the side of installation space is provided with sealing structure, gasbag spare, gasbag spare sets up in frock's side, and the dynamic sealing is realized with installation space side abuts in the inflation state, backboard, backboard and frock between through screw fixed connection, the utility model discloses through dynamic sealing design, solved the failure problem that traditional compression formula sealing strip led to because of the nonuniformity of compression force and plastic fatigue after repeated use, can self -adaptation fill interface microcosmic uneven place, form continuous and stable sealing barrier to ensure that sound energy cannot be short circuit transmission, and the accuracy of sound insulation test result is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of soundproof window technology, specifically to a sealing structure for a laboratory soundproof window. Background Technology

[0002] In the field of architectural acoustics testing, sound insulation test chambers are core facilities for evaluating the airborne sound insulation performance of components such as doors and windows. The accuracy of these tests largely depends on the sealing integrity of the sound insulation specimens installed at the test openings. According to standards, the specimens must be securely and sealed within a fixed fixture between the sound source chamber and the receiving chamber. Any minute leakage at the interface between the fixture and the building wall, or between the specimen and the fixture, will cause a short-circuit transmission of sound energy, resulting in a significantly lower measured sound insulation level, with deviations exceeding 10 decibels, severely distorting the test results.

[0003] In existing technologies, the installation of soundproof windows often uses simple compression sealing strips or on-site injection of sealant for sealing. The compression of the sealing strip is difficult to control evenly, and plastic fatigue can easily occur after repeated disassembly and reassembly, leading to seal failure. On the other hand, the sealant method is an irreversible operation, which is not conducive to the rapid replacement of test pieces and the reuse of tooling. Furthermore, the fluidity of the sealant before curing may cause discontinuity in the sealing layer, forming a leak channel that is difficult to detect.

[0004] Therefore, a soundproof window sealing structure for the laboratory is needed to improve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a sealing structure for laboratory soundproof windows to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: The laboratory soundproof window sealing structure includes: A frame, the interior of which has an installation space; The tooling is positioned within the installation space, and the side of the installation space is provided with a sealing structure. An airbag component is disposed on the side of the tooling and, when inflated, abuts against the side of the installation space to achieve dynamic sealing. The back plate is fixedly connected to the tooling by screws.

[0007] As a preferred embodiment of this utility model, the installation space includes an installation groove and a back groove formed inside the frame, and the side of the back groove is an inclined surface.

[0008] As a preferred embodiment of this utility model, the side of the back groove is provided with a protruding strip b extending inward, and a groove b is provided on the rear side of the protruding strip b. A sealing strip b is provided on the side of the back plate adjacent to the protruding strip b, and the sealing strip b is engaged with the groove b.

[0009] As a preferred embodiment of this utility model, the side of the back groove is provided with a protruding strip b extending inward, and a groove b is provided on the rear side of the protruding strip b. A sealing strip b is provided on the side of the back plate adjacent to the protruding strip b, and the sealing strip b is engaged with the groove b.

[0010] As a preferred embodiment of this utility model, the airbag component includes an airbag strip, an air nozzle is provided on the airbag strip, and an air inlet is provided on the tooling for supplying air to the air nozzle.

[0011] As a preferred embodiment of this utility model, a groove a is provided on the convex edge, and a sealing strip a is provided on the side of the mounting groove to mate with the groove a.

[0012] As a preferred embodiment of this utility model, a sealing gasket is provided on the back side of the protrusion a, and a plurality of continuous protrusions are provided on the side of the sealing gasket, and the sealing gasket abuts against the side of the protrusion b.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This utility model solves the failure problem of traditional compression sealing strips caused by uneven clamping force and plastic fatigue after repeated use through dynamic sealing design. It can adaptively fill the micro-unevenness of the interface to form a continuous and stable sealing barrier, thereby ensuring that sound energy cannot be short-circuited and ensuring the accuracy of sound insulation test results. This invention solves the drawbacks of sealant-based methods, such as difficulty in replacing test specimens, non-reusability of tooling, and potential leakage due to discontinuous sealing layers. By using modular sealing combinations and mechanical clamping, it achieves rapid disassembly and assembly of sound insulation test specimens and reliable restoration of the sealing state, greatly improving the testing efficiency and resource utilization of the laboratory. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0015] In the diagram: Frame 1, Mounting groove 2, Air inlet 3, Tooling 4, Sealing strip a5, Groove a6, Mounting slot 7, Raised strip a8, Back plate 9, Raised strip b10, Sealing strip b11, Sealing gasket 12, Back groove 13, Airbag strip 14. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] To facilitate understanding of this utility model, a more comprehensive description of it will be provided below with reference to relevant embodiments. Several embodiments of this utility model are given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0018] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] Please see Figure 1-3 The present invention provides the following technical solution: For an example, please refer to... Figure 1 , 2 3. Laboratory soundproof window sealing structure, the sealing structure mainly includes frame 1, tooling 4, airbag component and back plate 9.

[0021] The frame 1 serves as the main support structure, and its interior has an integrated installation space for accommodating and fixing the tooling 4. This installation space is specifically composed of the front mounting groove 2 and the rear back groove 13. The shape of the mounting groove 2 matches the outer contour of the tooling 4 and is used for the initial positioning of the tooling 4. The side of the back groove 13 is designed as an inclined surface, which is beneficial for guiding the back plate 9 during installation and forming a better stress state.

[0022] The fixture 4 is used to support the soundproof window specimen. It is positioned within the mounting groove 2 by a protruding edge on its side wall. To achieve a static seal between the frame 1 and the fixture 4, a groove a6 is formed on the protruding edge, and a sealing strip a5 is provided on the corresponding side of the mounting groove 2. When the fixture 4 is inserted into the mounting groove 2, the sealing strip a5 is compressed and embedded in the groove a6, forming the first reliable static sealing interface, effectively preventing sound leakage from the gap between the frame and the fixture.

[0023] The side of the tooling 4 is provided with a protruding edge that mates with the mounting groove 2, and a step is formed between the protruding edge and the side of the tooling 4.

[0024] To achieve a dynamic and adjustable center seal, an airbag component is introduced. Specifically, a protrusion a8 is provided on the side of the tooling 4, and an installation groove 7 is formed between the protrusion a8 and the aforementioned protruding edge. The airbag component is a flexible airbag strip 14, which is fixedly placed inside the installation groove 7. An air nozzle is connected to the airbag strip 14, and an air inlet 3 is correspondingly provided on the tooling 4. The air nozzle extends from the air inlet 3, which facilitates the inflation and deflation of the airbag strip 14 from the outside. Gas is injected into the airbag strip 14, causing it to expand and protrude outward from the installation groove 7, tightly abutting against the side of the frame of the soundproof window specimen.

[0025] Due to the flexibility and uniform expansion characteristics of the airbag strip 14, it can adaptively fill all microscopic unevenness between itself and the specimen, forming a uniform and reliable second dynamic sealing interface. The advantages are that it has good adaptability to specimens with different dimensional tolerances or slight deformation, and the sealing clamping force can be adjusted by controlling the air pressure, avoiding the uneven force problems that may be caused by traditional mechanical clamping.

[0026] On the side of the back groove 13 of the frame 1, there is a protruding strip b10 extending inward. The rear side of the protruding strip b10 has a groove b. The back plate 9 is fixedly connected to the fixture 4 by screws, thereby pressing and fixing the entire fixture 4 and the specimen inside it into the frame 1. On the side of the back plate 9 adjacent to the protruding strip b10, there is a sealing strip b11. When the screws are tightened to press the back plate 9 into the fixture 4, the sealing strip b11 is pressed into the groove b on the rear side of the protruding strip b10, achieving a tight fit and forming a third static sealing interface, mainly to prevent sound from leaking from the back of the structure.

[0027] To further enhance the sealing effect, a sealing gasket 12 is attached to the back side of the protrusion a 8 of the tooling 4. The side of the sealing gasket 12 is designed with multiple continuous protrusions, forming multiple contact lines. When the back plate 9 presses the tooling 4, the protrusion a 8 and the sealing gasket 12 on it are pushed towards the protrusion b 10 of the back groove 13, so that the multi-protrusion structure of the sealing gasket 12 and the side of the protrusion b 10 are elastically squeezed, forming another tight contact seal, which further blocks the sound wave path that may pass through the previous seals.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laboratory soundproof window sealing structure, characterized in that, include: The frame (1) has an installation space inside; Tooling (4), the tooling (4) is limited within the installation space, and the side of the installation space is provided with a sealing structure; The airbag component is disposed on the side of the tooling (4) and abuts against the side of the installation space in the inflated state to achieve dynamic sealing; The back plate (9) is fixedly connected to the tooling (4) by screws.

2. The laboratory soundproof window sealing structure according to claim 1, characterized in that: The installation space includes an installation groove (2) and a back groove (13) inside the frame (1), and the side of the back groove (13) is an inclined surface.

3. The laboratory soundproof window sealing structure according to claim 2, characterized in that: The back groove (13) has an inwardly extending protrusion b (10) on its side, and a groove b is provided on the rear side of the protrusion b (10). A sealing strip b (11) is provided on the side of the back plate (9) adjacent to the protrusion b (10), and the sealing strip b (11) is engaged with the groove b.

4. The laboratory soundproof window sealing structure according to claim 3, characterized in that: The tooling (4) has a protruding edge on its side that mates with the mounting groove (2). A step is formed between the protruding edge and the side of the tooling (4). The tooling (4) has a protruding strip a (8) on its side. An mounting groove (7) is formed between the protruding strip a (8) and the protruding edge. The airbag is fixedly installed inside the mounting groove (7).

5. The laboratory soundproof window sealing structure according to claim 4, characterized in that: The airbag component includes an airbag strip (14), on which an air nozzle is provided, and the tooling (4) has an air inlet (3) for supplying air to the air nozzle.

6. The laboratory soundproof window sealing structure according to claim 5, characterized in that: The protruding edge is provided with a groove a (6), and the side of the mounting groove (2) is provided with a sealing strip a (5) that mates with the groove a (6).

7. The laboratory soundproof window sealing structure according to claim 4, characterized in that: A sealing gasket (12) is provided on the back side of the protrusion a (8), and the side of the sealing gasket (12) is provided with multiple continuous protrusions. The sealing gasket (12) and the side of the protrusion b (10) are engaged and abutted.

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