Sealing dustproof foam

Abstract

According to the technical scheme, the sealing dustproof foam is characterized in that the sealing dustproof foam comprises a foam body, the foam body is in an annular cylinder shape, the cross section of the foam body is in an L shape, the foam body comprises a vertical ring part and a horizontal ring part which are integrally formed, the horizontal ring part is provided with a first outwards-protruding ring edge, and the first outwards-protruding ring edge and the horizontal ring part are integrally formed; the vertical ring part is provided with a second convex ring edge which is integrally formed with the vertical ring part, a rubber ring pad is fixed on the inner ring of the foam body, the horizontal ring part is provided with a first embedded clamping groove, and the end part of the horizontal ring part is provided with a mounting groove. The sealing dustproof foam has good firmness and stability after being installed, and has a good dust blocking effect.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-foam cotton, in particular to sealed dust-proof foam cotton. Background Art

[0002] Sealing foam is widely used in various instrument settings, such as large audio and sound reinforcement equipment. It is usually installed on the outside of the speaker's basin frame for sealing and dustproofing.

[0003] The existing Chinese patent publication number is CN208750003U, which discloses a highly sealed foam, including sealing foam, sealing water strips, and waterproof adhesive. The side ring of the sealing foam is coated with waterproof adhesive, and a circle of sealing water strips is adhered to the waterproof adhesive. The middle part of the sealing foam is foam, and the foam is wrapped with a metal mesh. The upper end of the foam is adhered with a wear-resistant sheet, and the foam is provided with air holes that penetrate the foam. The air holes also penetrate the wear-resistant sheet at the upper end of the foam. The lower end of the foam is adhered with a waterproof film, and the lower end of the waterproof film is adhered with a sealing film.

[0004] The above patent has some advantages, but also has some disadvantages, such as: insufficient installation stability, and the sound insulation and dustproof capabilities can be further improved. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the present invention is to provide a sealed dustproof foam to solve the problems mentioned in the background technology.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] The sealing and dust-proof foam includes a foam body, which is cylindrical and has an L-shaped cross-section. The foam body includes an integrally formed vertical ring portion and a horizontal ring portion. The horizontal ring portion has a first outer convex ring edge integrally formed with the horizontal ring portion, and the vertical ring portion has a second outer convex ring edge integrally formed with the vertical ring portion. A rubber ring pad is fixed on the inner ring of the foam body, a first embedded card slot is provided on the horizontal ring portion, and an installation slot is provided at the end of the horizontal ring portion.

[0008] By adopting the above technical solution, the sealing and dust-proof foam has good reliability and stability after installation, and has a good dust-blocking effect; by relying on the installation groove at the end of the horizontal ring part and the first embedded card slot, the protruding structure on the metal basin frame can be assisted to be embedded, thereby realizing installation and fixation; the use of rubber ring gaskets can improve the structural strength and the structural stability; the use of the first outer convex ring edge on the horizontal ring part and the second outer convex ring edge on the vertical part can further prevent dust and the like from entering, and the bending section modulus and torsional section modulus of the foam body can be improved to a certain extent, thereby increasing its stability.

[0009] Preferably, a second embedding slot is provided on the vertical ring portion.

[0010] By adopting the above technical solution, the provision of the second embedded slot can assist in fixing the vertical ring portion.

[0011] Preferably, the connection between the horizontal ring portion and the vertical ring portion is configured to be chamfered.

[0012] By adopting the above technical solution, the rounded setting can reduce the stress concentration phenomenon between the horizontal ring portion and the vertical ring portion.

[0013] Preferably, a first weight-reducing groove is provided inside the connection between the horizontal ring portion and the vertical ring portion.

[0014] By adopting the above technical solution, the first weight-reducing groove at the connection between the horizontal ring portion and the vertical ring portion can facilitate deformation at the corner, thereby facilitating interference installation.

[0015] Preferably, a second weight-reducing groove is provided inside the horizontal ring portion.

[0016] By adopting the above technical solution, the provision of the second shock-absorbing groove can reduce the weight of the foam body.

[0017] Preferably, the cross-section of the first embedded slot is dovetail-shaped.

[0018] By adopting the above technical solution, the dovetail-shaped first embedding slot has the advantage of stable embedding.

[0019] Preferably, the mounting groove is a rectangular groove.

[0020] By adopting the above technical solution, the rectangular mounting groove can facilitate the rectangular blocks on the basin stand to be snapped in and fixed.

[0021] Preferably, the cross-sections of the first outer convex ring edge and the second outer convex ring edge are semicircular respectively.

[0022] By adopting the above technical solution, the semicircular cross-section has the advantages of good dust blocking and reduced stress concentration.

[0023] In summary, the present invention has the following beneficial effects:

[0024] This sealing and dustproof foam has good reliability and stability after installation, and has a good dust-blocking effect; by relying on the installation groove at the end of the horizontal ring part and the first embedded card slot, the protruding structure on the metal basin frame can be assisted to be embedded, thereby achieving installation and fixation; the use of rubber ring pads can improve the structural strength and the structural stability; the use of the first outer convex ring edge on the horizontal ring part and the second outer convex ring edge on the vertical part can further prevent dust and the like from entering, and the bending section modulus and torsional section modulus of the foam body can be improved to a certain extent, thereby increasing its stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is one of the structural diagrams of the present utility model;

[0026] Figure 2 This is the second structural diagram of the present utility model;

[0027] Figure 3 It is a structural sectional view of the present utility model.

[0028] Figure numerals: 1. foam body; 2. vertical ring portion; 3. horizontal ring portion; 4. first outer convex ring edge; 5. second outer convex ring edge; 6. rubber ring pad; 7. first embedded slot; 8. mounting slot; 9. second embedded slot; 10. first weight-reducing slot; 11. second weight-reducing slot. DETAILED DESCRIPTION

[0029] 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.

[0030] refer to Figure 1-Figure 3 , sealing and dust-proof foam, including a foam body 1, the foam body 1 is a ring-cylindrical shape, the cross-section of the foam body 1 is L-shaped, the foam body 1 includes an integrally formed vertical ring portion 2 and a horizontal ring portion 3, the horizontal ring portion 3 has a first outer convex ring edge 4 integrally formed with the horizontal ring portion 3, the vertical ring portion 2 has a second outer convex ring edge 5 integrally formed with the vertical ring portion 2, a rubber ring gasket 6 is fixed on the inner ring of the foam body 1, a first embedded card groove 7 is opened on the horizontal ring portion 3, and an installation groove 8 is opened at the end of the horizontal ring portion 3.

[0031] refer to Figure 1-Figure 3After installation, the sealing and dustproof foam has good reliability and stability, and has a good dust-blocking effect; by relying on the installation groove 8 and the first embedded card groove 7 at the end of the horizontal ring part 3, the protruding structure on the metal basin frame can be assisted to be embedded, thereby realizing installation and fixation; the use of the rubber ring gasket 6 can improve the structural strength and the structural stability; the use of the first outer convex ring edge 4 on the horizontal ring part 3 and the second outer convex ring edge 5 on the vertical part can further prevent dust and the like from entering, and can improve the bending section modulus and torsional section modulus of the foam body 1 to a certain extent, thereby increasing its stability.

[0032] refer to Figure 1-Figure 3 , wherein a second embedding slot 9 is provided on the vertical ring portion 2, and the setting of the second embedding slot 9 can assist in fixing the vertical ring portion 2. The connection between the horizontal ring portion 3 and the vertical ring portion 2 is configured to be chamfered, and the setting of the chamfer can reduce the stress concentration phenomenon between the horizontal ring portion 3 and the vertical ring portion 2. The connection between the horizontal ring portion 3 and the vertical ring portion 2 is internally provided with a first weight-reducing groove 10, and the first weight-reducing groove 10 at the connection between the horizontal ring portion 3 and the vertical ring portion 2 can facilitate deformation at the corner, thereby facilitating interference fit.

[0033] refer to Figure 1-Figure 3 The horizontal ring portion 3 includes a second weight-reducing groove 11, which reduces the weight of the foam body 1. The first insertion slot 7 has a dovetail-shaped cross-section, which provides a stable insertion. The mounting slot 8 is a rectangular slot, which facilitates the insertion and fixation of rectangular blocks on the basin stand. The first and second convex rims 4 and 5 have semicircular cross-sections, which provide excellent dust protection and reduce stress concentration.

[0034] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealed dustproof foam, comprising a foam body (1), characterized in that: The foam body (1) is annular and cylindrical, and the cross section of the foam body (1) is L-shaped. The foam body (1) includes an integrally formed vertical ring portion (2) and a horizontal ring portion (3). The horizontal ring portion (3) has a first outer convex ring edge (4) integrally formed with the horizontal ring portion (3), and the vertical ring portion (2) has a second outer convex ring edge (5) integrally formed with the vertical ring portion (2). A rubber ring gasket (6) is fixed on the inner ring of the foam body (1), a first embedded card slot (7) is provided on the horizontal ring portion (3), and a mounting slot (8) is provided at the end of the horizontal ring portion (3).

2. The sealing and dustproof foam according to claim 1, characterized in that: A second embedding slot (9) is provided on the vertical ring portion (2).

3. The sealing and dustproof foam according to claim 1, characterized in that: The connection between the horizontal ring portion (3) and the vertical ring portion (2) is configured to be rounded.

4. The sealing and dustproof foam according to claim 1, characterized in that: A first weight-reducing groove (10) is provided inside the connection between the horizontal ring portion (3) and the vertical ring portion (2).

5. The sealing and dustproof foam according to claim 1, characterized in that: A second weight-reducing groove (11) is provided inside the horizontal ring portion (3).

6. The sealing and dustproof foam according to claim 1, characterized in that: The cross section of the first embedded slot (7) is dovetail-shaped.

7. The sealing and dustproof foam according to claim 1, characterized in that: The installation groove (8) is a rectangular groove.

8. The sealing and dustproof foam according to claim 1, characterized in that: The cross-sections of the first outer convex ring edge (4) and the second outer convex ring edge (5) are semicircular respectively.

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