Movable wedge module frame with earth screen

Abstract

The utility model discloses a movable wedge module frame with a ground screen, which relates to the technical field of anechoic room ground sound absorption and comprises guardrails, stand columns, sound absorption wedge components, a top frame and a bottom frame. The top frame comprises flat steel, C-shaped steel, steel plate connecting pieces and a ground net. The bottom frame comprises a protective panel, channel steel, limiting supporting legs, wedge guide rails and pulley connecting plates. The wedge module has the advantages that polyester fiber felts are installed on the side faces of the bottom frame, the side faces of the top frame and the ground screen, and metal collision between wedge module frames is avoided; the bottom frame is provided with universal wheels and a protective panel, can be used for moving and supporting the movable wedge module, and can also be used as an interface for a forklift to carry and move wedges; and the limiting supporting legs are additionally arranged, so that the forklift is prevented from rolling over in the carrying process.

Description

Technical Field

[0001] This utility model relates to the field of sound absorption technology for anechoic chamber floors, and in particular to a movable wedge module frame with a ground grid. Background Technology

[0002] Sound-absorbing wedges are an important component of anechoic chambers. The anechoic chamber floor wedges adopt a modular design. The overall area can be divided into mobile modules and non-mobile modules according to the handling characteristics, and load-bearing modules (with ground grid modules) and non-load-bearing modules (without ground grid modules) according to the load-bearing characteristics.

[0003] Traditional ground wedge modules consist of a frame and sound-absorbing wedges. They are small in size and lightweight, and can be moved over long distances by rollers on the frame or by forklift transport.

[0004] Existing ground wedge modules are large and heavy, and it is time-consuming and laborious to move them over long distances using rollers; when moving them with a forklift, the center of gravity may not be accurately located, which may cause them to tip over.

[0005] Therefore, it is particularly important to rationally design the structure of a large-scale movable wedge module frame with ground grid, and to make use of the existing wedge module size to achieve labor-saving and time-saving movement of the ground wedge module. Utility Model Content

[0006] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] A movable wedge module frame with a grounding net includes a guardrail, posts, sound-absorbing wedge components, a top frame, and a bottom frame.

[0009] The top frame includes flat steel, C-shaped steel, steel plate connectors, and a ground grid;

[0010] The bottom frame includes a protective panel, channel steel, limiting legs, wedge guide rails, and pulley connecting plates;

[0011] The sound-absorbing wedge assembly includes a sound-absorbing wedge and a wedge hook.

[0012] As a preferred embodiment of the movable wedge module frame with grounding mesh described in this utility model, the flat steel, the C-shaped steel, the steel plate connector and the grounding mesh are welded together as a whole, the C-shaped steel is connected to the outside of the grounding mesh, and the flat steel is supported and connected to the bottom end of the grounding mesh.

[0013] As a preferred embodiment of the movable wedge module frame with grounding net of this utility model, the column is installed at the four corners of the bottom end of the top frame and is fastened by bolts, and its bottom end is connected to the top end of the bottom frame.

[0014] As a preferred embodiment of the movable wedge module frame with grounding mesh of this utility model, polyester fiber felt is connected to the outer side of the C-shaped steel and the outer side of the channel steel, and the polyester fiber felt is connected to the C-shaped steel by rivets.

[0015] As a preferred embodiment of the movable wedge module frame with grounding mesh of this utility model, the outer side of the channel steel is connected to the polyester fiber felt with Velcro, and a pop rivet is connected between the channel steel, the polyester fiber felt and the Velcro.

[0016] As a preferred embodiment of the movable wedge module frame with ground netting described in this utility model, the guardrail is connected to the C-shaped steel by bolts and installed on both sides of the top of the top frame.

[0017] As a preferred embodiment of the movable wedge module frame with grounding mesh of this utility model, the protective panel, the channel steel, the limiting legs, the column, the wedge guide rail, and the pulley connecting plate are welded into a whole. The protective panel is a galvanized perforated plate. The channel steel is supported and connected to the bottom end of the protective panel, and the wedge guide rail is fixed to the top end of the channel steel.

[0018] As a preferred embodiment of the movable wedge module frame with grounding net described in this utility model, the bottom end of the pulley connecting plate is equipped with silent universal wheels, which are connected to each other by bolts, and the pulley connecting plate is installed at the four corners of the bottom end of the bottom frame.

[0019] In a preferred embodiment of the movable wedge module frame with grounding mesh described in this utility model, the wedge guide rail is fixed to the top of the channel steel, and the wedge hook is fixed to the bottom of the sound-absorbing wedge. The wedge hook is inserted into and engaged with the inside of the wedge guide rail.

[0020] As a preferred embodiment of the movable wedge module frame with grounding mesh described in this utility model, wherein: the bottom edge of the bottom frame is uniformly fixed with limiting legs.

[0021] The beneficial effects of this utility model are: 1. Polyester fiber felt is installed on the sides of the bottom frame, the sides of the top frame, and the ground net to avoid metal collisions between the wedge module frames.

[0022] 2. The bottom frame is equipped with casters and a protective panel, which can be used for the movement support of the wedge module, and also as an interface for forklifts to move the wedge.

[0023] 3. Added limit legs to ensure the forklift will not tip over during handling;

[0024] 4. Use a metal grounding grid with a cross-section of 3mm×3mm. The smaller the cross-sectional area, the less reflection of high-frequency sound fields can be reduced. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0026] Figure 1 This is an overall structural diagram of the movable wedge module frame with grounding grid.

[0027] Figure 2 This is a structural diagram of the bottom frame of a movable wedge module frame with a grounding grid.

[0028] Figure 3 This is a dimensional drawing of the bottom frame portion of a movable wedge module frame with a grounding grid.

[0029] Figure 4 This is a schematic diagram of the Velcro and angle steel connection of a movable wedge module frame with a grounding grid.

[0030] Figure 5 This is a schematic diagram of the side hook and guide rail installation structure of a movable wedge module frame with a grounding grid.

[0031] Figure 6 This is a schematic diagram of the installation structure of the middle hook and guide rail of a movable wedge module frame with a grounding grid.

[0032] Figure 7 This is a top frame structure diagram of a movable wedge module frame with a grounding grid.

[0033] Figure 8 This is a diagram showing the dimensions of the grounding grid for a movable wedge module frame with a grounding grid.

[0034] Figure 9 This is a schematic diagram showing the connection between the guardrail, posts, and top frame of a movable wedge-shaped modular frame with a grounding mesh.

[0035] Figure 10 This is a schematic diagram of a forklift handling interface for a movable wedge module frame with a grounding grid.

[0036] Figure 11 This is a diagram showing the overall dimensions of the grounding grid for a movable wedge module frame with a grounding grid.

[0037] Figure 12 This is a diagram showing the mesh opening dimensions of a movable wedge module frame with a grounding mesh.

[0038] The following are the labels in the diagram: 1. Guardrail; 2. Top frame; 3. Post; 4. Bottom frame; 5. Sound-absorbing wedge assembly; 6. Silent caster wheel; 7. Polyester fiber felt; 8. Limiting leg; 9. Pulley connecting plate; 10. Guard panel; 11. Wedge guide rail; 12. Channel steel; 13. Blind rivet; 14. Velcro; 15. Sound-absorbing wedge; 16. Wedge hook; 17. Ground net; 18. Flat steel; 19. C-shaped steel; 20. Steel plate connector. Detailed Implementation

[0039] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0041] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0042] Example 1:

[0043] Reference Figures 1-12 This is the first embodiment of the present utility model. This embodiment provides a movable wedge module frame with a grounding net. The movable wedge module frame with a grounding net includes a guardrail 1, a post 3, a sound-absorbing wedge component 5, a top frame 2, and a bottom frame 4.

[0044] The top frame 2 includes flat steel 18, C-shaped steel 19, steel plate connectors 20, and grounding mesh 17; the top frame 2 is used to install the grounding mesh 17.

[0045] The bottom frame 4 includes a protective panel 10, a channel steel 12, a limiting leg 8, a wedge guide rail 11, and a pulley connecting plate 9; by setting the bottom frame 4, it is easy to move the wedge module frame.

[0046] The sound-absorbing wedge assembly 5 includes a sound-absorbing wedge 15 and a wedge hook 16. The sound-absorbing wedge assembly 5 is used to absorb sound from the floor of the anechoic chamber.

[0047] Example 2:

[0048] Reference Figures 1-12 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0049] Specifically, the flat steel 18, C-shaped steel 19, steel plate connector 20, and ground grid 17 are welded together as a whole. The C-shaped steel 19 is connected to the outside of the ground grid 17, and the flat steel 18 is supported and connected to the bottom of the ground grid 17.

[0050] The stability of the wedge module frame is improved by welding the flat steel 18, C-shaped steel 19, steel plate connector 20 and ground grid 17 together as a whole.

[0051] Specifically, the column 3 is installed at the four corners of the bottom of the top frame 2 and is fastened with bolts, with its bottom end connected to the top of the bottom frame 4.

[0052] By setting up columns 3, a support connection is made between the top frame 2 and the bottom frame 4.

[0053] Specifically, polyester fiber felt 7 is connected to the outer side of C-shaped steel 19 and the outer side of channel steel 12, and the polyester fiber felt 7 is connected to C-shaped steel 19 by rivets.

[0054] Polyester fiber felt 7 is installed on the C-shaped steel to prevent metal collisions between the wedge module frames.

[0055] Specifically, a Velcro 14 is connected between the outer side of the channel steel 12 and the polyester fiber felt 7, and a blind rivet 13 is connected between the channel steel 12, the polyester fiber felt 7 and the Velcro 14.

[0056] Polyester fiber felt 7 is installed on the outside of the channel steel 12 to prevent metal collisions between the wedge module frames.

[0057] Specifically, the guardrail 1 is connected to the C-shaped steel 19 by bolts and is installed on both sides of the top of the top frame 2.

[0058] By installing guardrail 1, the top of the top frame 2 can be protected.

[0059] Example 3:

[0060] Reference Figures 1-12This is the third embodiment of the present invention, which is based on the first two embodiments.

[0061] Specifically, the protective panel 10, channel steel 12, limiting support leg 8, column 3, wedge guide rail 11, and pulley connecting plate 9 are welded into a whole. The protective panel 10 is a galvanized perforated plate. The channel steel 12 is supported and connected to the bottom end of the protective panel 10, and the wedge guide rail 11 is fixed to the top end of the channel steel 12.

[0062] The stability of the wedge module frame is improved by welding the protective panel 10, channel steel 12, limiting legs 8, column 3, wedge guide rail 11, and pulley connecting plate 9 into a whole.

[0063] Specifically, the bottom of the pulley connecting plate 9 is equipped with silent universal wheels 6, which are connected to each other by bolts. The pulley connecting plate 9 is installed at the four corners of the bottom of the bottom frame 4.

[0064] The wedge module frame can be moved silently by setting up silent casters 6.

[0065] Specifically, the wedge guide rail 11 is fixed to the top of the channel steel 12, and the wedge hook 16 is fixed to the bottom of the sound-absorbing wedge 15. The wedge hook 16 is inserted into and engaged inside the wedge guide rail 11.

[0066] By setting up the wedge guide rail 11 and the wedge hook 16, it is easy to disassemble and install the sound-absorbing wedge 15.

[0067] Specifically, the bottom edge of the bottom frame 4 is uniformly fixed with limiting legs 8.

[0068] By setting limit legs 8, it is easy to place it stably on the wedge module frame.

[0069] When using, such as Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the bottom frame 4 includes channel steel 12, wedge guide rail 11, metal protective panel 10, limiting legs 8, polyester fiber felt 7, pulley connecting plate 9, silent swivel casters 6, and bolts. The channel steel 12, protective panel 10, limiting legs 8, wedge guide rail 11, and pulley connecting plate 9 are all welded together. The silent swivel casters 6 are bolted to the pulley connecting plate 9. The width of the limiting legs 8 is 1250mm, which limits the forklift's carrying range, ensuring the wedge module's center of gravity and preventing tipping during transport. The bottom of the limiting legs 8 has rubber pads to prevent collisions with the ground during movement. The protective panel 10 is a galvanized perforated plate with a 39% perforation rate. The protective panel 10 prevents damage to the bottom of the wedge module during forklift transport. Polyester fiber felt 7 is installed on the side of the bottom frame 4. First, the Velcro 14 is connected to the L-shaped channel steel 12 by the core-pulling rivet 13, and then the polyester fiber felt 7 is glued to the Velcro 14. Its function is to prevent metal collision between the wedge module frames.

[0070] Combination Figure 5 , Figure 6 As shown, the wedge hook 16 at the bottom of the sound-absorbing wedge 15 is installed from the side of the wedge guide rail 11, which can ensure the stability of the moving wedge during the movement process and under test conditions.

[0071] Combination Figure 7 , Figure 8 , Figure 9 As shown, the top frame 2 is welded together from C-shaped steel 19, flat steel 18, and steel plate connectors 20. The flat steel 18 serves to support the metal ground mesh 17, reducing its deformation to within 10mm. Polyester fiber felt 7 is installed on the sides of the top frame 2 and the ground mesh 17 to prevent metal collisions between the wedge modules. The column 3 is bolted to the bottom frame 4 and the top frame 2. The guardrail 1 is bolted to the C-shaped steel 19. The connection method between the top frame 2 and the polyester fiber felt 7 is the same as that between the bottom frame 4 and the bottom frame 4.

[0072] Combination Figure 10 As shown, the dimensions between the limiting legs 8 of the bottom frame 4 limit the range of forklift tooth handling, ensuring that the center of gravity of the wedge module with ground net 17 does not tip over during handling.

[0073] Combination Figure 11 , Figure 12 As shown, perforated protective panels are used on the sound-absorbing material lining of the wall. To minimize the impact of the perforated panels on the sound absorption performance, the perforation rate is generally not less than 30%. In actual processing, the higher the perforation rate, the better, provided that the structural strength is guaranteed. Currently, it is usually around 40%.

[0074] In the ground wedge frame with ground mesh, the top is made of galvanized metal ground mesh. The perforation rate of the metal ground mesh 17 has a significant impact on its acoustic performance. The perforation rate of the metal ground mesh 17 refers to the ratio of the open area on the mesh surface to the total area. This parameter is directly related to the ability of sound waves to pass through the metal ground mesh 17 and the amount of sound waves that the sound-absorbing wedge 15 behind the mesh can reach. A higher perforation rate allows more sound waves to pass through the metal ground mesh 17 and reach the sound-absorbing wedge 15, which helps the overall sound absorption efficiency, especially in the mid-to-high frequency range.

[0075] Therefore, when the perforation rate of the metal grounding mesh 17 is greater than 40%, it can be considered as completely transmitting sound waves, and thus has no effect on the sound field.

[0076] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A movable wedge module frame with a ground net, comprising a guardrail (1), a stand column (3), a sound-absorbing wedge assembly (5), a top frame (2) and a bottom frame (4), characterized in that: the top frame (2) comprises a flat steel (18), a C-shaped steel (19), a steel plate connector (20) and a ground net (17); the bottom frame (4) comprises a facing plate (10), a channel steel (12), a limiting support leg (8), a wedge guide rail (11) and a pulley connecting plate (9); the sound-absorbing wedge assembly (5) comprises a sound-absorbing wedge (15) and a wedge hook (16).

2. The ground plane mobile wedge module frame of claim 1, wherein: The flat steel (18), the C-shaped steel (19), the steel plate connector (20) and the ground net (17) are welded into a whole, the C-shaped steel (19) is connected outside the ground net (17), and the flat steel (18) is supported and connected at the bottom end of the ground net (17).

3. The ground plane mobile wedge module frame of claim 1, wherein: The stand column (3) is installed at the bottom corners of the top frame (2) and is fastened and connected by bolts, and the bottom end is connected to the top end of the bottom frame (4).

4. The ground plane mobile wedge module frame of claim 1, wherein: The outer side of the C-shaped steel (19) and the outer side of the channel steel (12) are connected with polyester fiber felt (7), and the polyester fiber felt (7) is connected with the C-shaped steel (19) by rivets.

5. The ground plane mobile wedge module frame of claim 4, wherein: The outer side of the channel steel (12) and the polyester fiber felt (7) are connected with Velcro (14), and core-pulling rivets (13) are connected between the channel steel (12), the polyester fiber felt (7) and the Velcro (14).

6. The ground plane mobile wedge module frame of claim 1, wherein: The guardrail (1) is connected with the C-shaped steel (19) by bolts and is installed on both sides of the top end of the top frame (2).

7. The ground plane mobile wedge module frame of claim 1, wherein: The facing plate (10), the channel steel (12), the limiting support leg (8), the stand column (3) and the wedge guide rail (11) and the pulley connecting plate (9) are welded into a whole, the facing plate (10) is a galvanized perforated plate, the channel steel (12) is supported and connected at the bottom end of the facing plate (10), and the wedge guide rail (11) is fixed at the top end of the channel steel (12).

8. The ground plane mobile wedge module frame of claim 1, wherein: The bottom end of the pulley connecting plate (9) is provided with a silent universal wheel (6), and the pulley connecting plates (9) are connected with each other by bolts, and the pulley connecting plates (9) are installed at the bottom corners of the bottom frame (4).

9. The ground plane mobile wedge module frame of claim 1, wherein: The wedge guide rail (11) is fixed at the top end of the channel steel (12), the wedge hook (16) is fixed at the bottom end of the sound-absorbing wedge (15), and the wedge hook (16) is inserted and clamped in the inside of the wedge guide rail (11).

10. The ground plane mobile wedge module frame of claim 9, wherein: The bottom end edges of the bottom frame (4) are uniformly fixed with limiting support legs (8).

Images