Noise reduction plate with extension limiting structure

Abstract

The utility model discloses a sound attenuation and noise reduction plate with an extension limiting structure, which relates to the technical field of sound attenuation and noise reduction plates and comprises plate bodies movably connected between middle columns and a first side column, between the middle columns and a second side column and between the two middle columns. When a first side column and a second side column are pulled, a plurality of plate bodies can be deflected and unfolded, a limiting frame is pulled upwards to enable a reset spring to be stretched, the limiting frame can be loosened after the first side column and the second side column are connected in a clamped mode through an inserting plate and an inserting groove, and the limiting frame can reset under the action of the reset spring and is connected with the first side column in a clamped mode. By adopting the mode, the splicing and limiting times of the silencing and noise reduction plate can be greatly reduced, the mounting efficiency can be improved, the rapid and efficient extension of the silencing and noise reduction area can be realized, and when the silencing and noise reduction plate is not used, the silencing and noise reduction plate can be contracted and folded, is convenient to transport and store, and is relatively convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of sound-absorbing and noise-reducing panels, in particular to a sound-absorbing and noise-reducing panel with an extended limiting structure. Background Art

[0002] During construction, a lot of noise is generated at the construction site. In order to prevent the noise from polluting the environment, a circle of noise reduction fences is usually installed around the construction site. This not only reduces the noise, but also makes the site more beautiful when viewed from the outside. In the prior art, noise reduction panels are usually connected to each other through mounting frames with an "H"-shaped cross section. Specifically, the mounting frame is first installed on the ground or on a supporting platform, and then the noise reduction panels are slid from top to bottom and installed between two adjacent mounting frames, and then fixed. Although this type of mounting structure can be assembled into a stable noise reduction fence, in actual application, the noise reduction panels need to be slid in from top to bottom for installation and slid out from bottom to top for removal, which usually requires the use of cranes, hoists and other equipment, making installation cumbersome and working inefficient.

[0003] According to the installation structure of a construction noise reduction equipment with the announcement number CN221589967U, it includes a noise reduction plate and also includes: a connecting plate, with side grooves on both sides for the side ends of the noise reduction plate to be inserted, the top view cross-section of the side groove is rectangular, with two open sides and two closed sides, and the two closed sides are a long side and a short side; a plurality of telescopic baffles, which are movably telescopically arranged on the closed long sides of the side grooves, and are used to position the side ends of the noise reduction plate between the telescopic baffles and the closed short sides of the side grooves. In the installation structure of the construction noise reduction equipment, the side ends of the noise reduction plate are installed in the side grooves on both sides of the connecting plate, and can be installed directly from the front without sliding in from top to bottom, which simplifies the installation steps and eliminates the need for heavy equipment such as cranes and hoists; the side ends of the noise reduction plate are blocked by the telescopic baffles, which can effectively position the noise reduction plate, and the installation is firm and stable.

[0004] Regarding the above-mentioned related solutions, the multiple noise reduction panels need to be spliced ​​and limited multiple times to achieve the extension of the sound-absorbing and noise reduction area. This multiple splicing and limiting method is not only cumbersome to operate, but also easily leads to low efficiency in the extension and limiting of the sound-absorbing and noise reduction panels. Utility Model Content

[0005] Based on this, the purpose of the present invention is to provide a sound-absorbing and noise-reducing plate with an extended limiting structure to solve the technical problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sound-absorbing and noise-reducing plate with an extended limiting structure, comprising a plate body, wherein the plate body is movably connected between the middle column and the first side column, between the middle column and the second side column, and between the two middle columns, and a limiting mechanism is arranged inside the top end of the No. 1 side column and the No. 2 side column, and the limiting mechanism includes a movable groove, a return spring, a limiting frame, a limiting groove and a guide rod, and the limiting frame is movably connected inside the top end of the No. 1 side column and the No. 2 side column.

[0007] Preferably, hinges are provided on both sides of the center column and on the sides of the No. 1 and No. 2 side columns close to the plate body, and the plate body and the center column, No. 1 and No. 2 side columns all form a rotating structure through the hinges.

[0008] Preferably, a limiting groove is provided at the top end of the No. 1 side column, and the limiting frame and the No. 1 side column form a locking structure through the limiting groove.

[0009] Preferably, a movable groove is provided at the top end of the second side column, and a return spring is connected between the limiting frame and the movable groove.

[0010] Preferably, the limiting frame is configured as an inverted "U"-shaped structure, and the limiting frame and the movable groove form an elastic structure via a reset spring.

[0011] Preferably, a guide groove is provided at one end of the limiting frame close to the movable groove, a guide rod passing through the guide groove is provided inside the movable groove, and the limiting frame and the movable groove form a sliding structure through the guide rod and the guide groove.

[0012] Preferably, a plug-in plate is provided on one side of the second side column, and a plug-in slot is provided on one side of the first side column, and the first side column and the second side column form a locking structure through the plug-in plate and the plug-in slot.

[0013] In summary, the present invention has the following beneficial effects:

[0014] The utility model is provided with a hinge, a middle column, a first side column, a second side column and a limit mechanism. Since the plate body and the plate body are rotatably connected by the hinge and the middle column, the multiple plates can be deflected and expanded when the first side column and the second side column are pulled. Since the limit frame is elastically connected to the movable slot by a return spring, the return spring can be stretched by pulling the limit frame upward. After the first side column and the second side column are clamped by the plug-in plate and the plug-in slot, the limit frame can be released, so that the limit frame will be reset under the action of the return spring and clamped with the first side column, thereby realizing the limitation between the first side column and the second side column. By adopting this method, the number of splicing and limiting times of the sound-absorbing and noise-reducing plate can be greatly reduced, the installation efficiency can be improved, thereby realizing rapid and efficient extension of the sound-absorbing and noise-reducing area, and when not in use, it can be retracted and folded, which is convenient for transportation and storage and more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a three-dimensional exploded view of the utility model;

[0017] Figure 3 It is a partial three-dimensional cutaway view of the utility model;

[0018] Figure 4 It is a schematic diagram of the partial three-dimensional structure of the utility model after it is unfolded.

[0019] In the figure: 1. Plate body; 2. Center column; 3. Side column No. 1; 4. Side column No. 2; 5. Hinge; 6. Plug-in plate; 7. Plug-in slot; 8. Limiting mechanism; 801. Movable slot; 802. Return spring; 803. Limiting frame; 804. Limiting slot; 805. Guide rod. DETAILED DESCRIPTION

[0020] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] The following describes an embodiment of the present invention based on its overall structure.

[0022] A sound-absorbing and noise-reducing board with an extended limiting structure, such as Figures 1-4 As shown, it includes a plate body 1, which is movably connected between the middle column 2 and the first side column 3, between the middle column 2 and the second side column 4, and between the two middle columns 2. Both sides of the middle column 2 and the side of the first and second side columns 3 and 4 close to the plate body 1 are provided with hinges 5. The plate body 1 and the middle column 2, the first and second side columns 3, and the second side columns 4 all form a rotating structure through the hinges 5. A limiting mechanism 8 is provided inside the top of the first and second side columns 3 and 4. The limiting mechanism 8 includes a movable groove 801, a reset spring 802, a limiting frame 803, a limiting groove 804 and a guide rod 805, the limiting frame 803 is movably connected to the inner top of the No. 1 side column 3 and the No. 2 side column 4, the top of the No. 1 side column 3 is provided with a limiting groove 804, the limiting frame 803 and the No. 1 side column 3 form a locking structure through the limiting groove 804, the top of the No. 2 side column 4 is provided with a movable groove 801, a return spring 802 is connected between the limiting frame 803 and the movable groove 801, the limiting frame 803 is set to an inverted "U" shape structure, and the limiting frame 803 and the movable groove 801 form an elastic structure through the return spring 802;

[0023] See Figures 1-4 When the first and second side posts 3 and 4 are pulled out of the way, the limit frame 803 can be pulled out of the way, and the limit frame 803 can be released.

[0024] See Figure 2 and Figure 3 It can be seen that a guide groove is provided at one end of the limit frame 803 close to the movable groove 801, and a guide rod 805 is provided inside the movable groove 801 to pass through the guide groove. The limit frame 803 and the movable groove 801 form a sliding structure through the guide rod 805 and the guide groove, which can support and limit the limit frame 803, thereby increasing the stability of the limit frame 803 during the sliding process and preventing displacement.

[0025] See Figure 1 、 Figure 2 and Figure 4 It can be seen that a plug-in plate 6 is provided on one side of the No. 2 side column 4, and a plug-in slot 7 is provided on one side of the No. 1 side column 3. The No. 1 side column 3 and the No. 2 side column 4 form a snap-fit ​​structure through the plug-in plate 6 and the plug-in slot 7, which can increase the firmness of the No. 1 side column 3 and the No. 2 side column 4 after docking, and at the same time prevent the limit frame 803 from being damaged by force.

[0026] The working principle of the present invention is as follows: when the sound-absorbing and noise-reducing plate with an extension limit structure is used, the multiple plates 1 between the No. 1 side column 3 and the No. 2 side column 4 are deflected and expanded by pulling the No. 1 side column 3 and the No. 2 side column 4 to both sides respectively. At this time, the return spring 802 can be stretched by pulling the limit frame 803 upwards, and then the No. 1 side column 3 and the No. 2 side column 4 are clamped through the plug-in plate 6 and the plug-in slot 7. At this time, the limit frame 803 can be loosened so that the limit frame 803 will be reset under the action of the return spring 802 and clamped with the No. 1 side column 3 through the limit slot 804, thereby realizing the limitation between the No. 1 side column 3 and the No. 2 side column 4, and then realizing the rapid and efficient extension of the sound-absorbing and noise-reducing area. At this time, the noise generated by the construction can be reduced by the sound-absorbing and noise-reducing plate. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0027] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A sound-absorbing and noise-reducing plate with an extended limit structure, comprising a plate body (1), characterized in that: The plate body (1) is movably connected between the center column (2) and the first side column (3), between the center column (2) and the second side column (4), and between the two center columns (2). A limiting mechanism (8) is provided inside the top ends of the first side column (3) and the second side column (4). The limiting mechanism (8) comprises a movable groove (801), a return spring (802), a limiting frame (803), a limiting groove (804), and a guide rod (805). The limiting frame (803) is movably connected inside the top ends of the first side column (3) and the second side column (4).

2. The sound-absorbing and noise-reducing plate with an extended limit structure according to claim 1, characterized in that: Both sides of the central column (2) and the sides of the No. 1 side column (3) and the No. 2 side column (4) close to the plate body (1) are all provided with hinges (5), and the plate body (1) and the central column (2), the No. 1 side column (3), and the No. 2 side column (4) all form a rotating structure through the hinges (5).

3. The sound-absorbing and noise-reducing plate with an extended limiting structure according to claim 1, characterized in that: A limiting groove (804) is provided at the top end of the first side column (3), and the limiting frame (803) and the first side column (3) form a snap-fit ​​structure via the limiting groove (804).

4. The sound-absorbing and noise-reducing plate with an extended limit structure according to claim 1, characterized in that: A movable groove (801) is provided at the top end of the second side column (4), and a return spring (802) is connected between the limiting frame (803) and the movable groove (801).

5. The sound-absorbing and noise-reducing plate with an extended limiting structure according to claim 4, characterized in that: The limiting frame (803) is configured as an inverted "U"-shaped structure, and the limiting frame (803) and the movable groove (801) form an elastic structure via a return spring (802).

6. The sound-absorbing and noise-reducing plate with an extended limit structure according to claim 5, characterized in that: A guide groove is provided at one end of the limiting frame (803) close to the movable groove (801), and a guide rod (805) penetrating the guide groove is provided inside the movable groove (801). The limiting frame (803) and the movable groove (801) form a sliding structure through the guide rod (805) and the guide groove.

7. The sound-absorbing and noise-reducing plate with an extended limit structure according to claim 1, characterized in that: A plug-in plate (6) is provided on one side of the second side column (4), and a plug-in slot (7) is provided on one side of the first side column (3). The first side column (3) and the second side column (4) form a snap-fit ​​structure through the plug-in plate (6) and the plug-in slot (7).

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