CN219304974U - Outdoor sound column top cover waterproof device - Google Patents
Outdoor sound column top cover waterproof device Download PDFInfo
- Publication number
- CN219304974U CN219304974U CN202223140960.7U CN202223140960U CN219304974U CN 219304974 U CN219304974 U CN 219304974U CN 202223140960 U CN202223140960 U CN 202223140960U CN 219304974 U CN219304974 U CN 219304974U
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- cover plate
- aluminum alloy
- alloy cover
- plastic ring
- screw
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Abstract
An outdoor sound column top cover waterproof device comprises an aluminum alloy cover plate, an EVA pad arranged between the aluminum alloy cover plate and the upper end of a box body, and a locking screw for locking the aluminum alloy cover plate on the box body; the aluminum alloy cover plate is characterized by comprising a plastic gasket, wherein the locking screw is a countersunk head screw, a counter bore is formed in the aluminum alloy cover plate, the plastic gasket comprises a first plastic ring and a second plastic ring which are integrally injection molded, the first plastic ring is arranged at the bottom of the counter bore, the second plastic ring is arranged in the counter bore, and the second plastic ring is tightly clung to the inner wall of the counter bore under extrusion of the countersunk head screw. The principle of the utility model is as follows: when the screw is screwed, the inclined plane of the head part of the countersunk head screw is used for extruding and deforming the second plastic ring outwards, so that a gap between the locking screw and the aluminum alloy cover plate can be well filled, and a good waterproof effect is achieved; the waterproof performance can be improved without depending on the aluminum alloy cover plate, so that the aluminum alloy cover plate can be made thinner, and better economic benefit is achieved; meanwhile, the appearance requirement of locking the countersunk head screw and the aluminum alloy cover plate can be met.
Description
Technical Field
The utility model relates to the field of sound boxes, in particular to a waterproof device for an outdoor sound column top cover.
Background
As shown in fig. 1 and 2, the existing outdoor sound column top cover waterproof device generally comprises an aluminum alloy top cover 1, an EVA pad 2, a silica gel gasket 4 and a belt-medium screw 3. Waterproof is carried out by utilizing the belt-mediated screw 3 and the silica gel gasket 4, in practical application, the screw is often locked unevenly due to deviation between the box body and the screw hole of the cover plate, so that sealing is not tight, the thickness of the silica gel pad is often thickened to ensure waterproof performance, the thickness of the aluminum cover plate is increased, cost is increased, the appearance is unsightly, and meanwhile, the silica gel pad is made of soft materials and is easily rolled up when the screw is locked.
Disclosure of Invention
The utility model aims to solve the technical problem of providing an outdoor sound column top cover waterproof device, which has thinner aluminum alloy cover plate and better top cover waterproof performance.
In order to solve the technical problems, the technical scheme of the utility model is as follows: an outdoor sound column top cover waterproof device comprises an aluminum alloy cover plate, an EVA pad arranged between the aluminum alloy cover plate and the upper end of a box body, and a locking screw for locking the aluminum alloy cover plate on the box body; the aluminum alloy cover plate is characterized by comprising a plastic gasket, wherein the locking screw is a countersunk head screw, a counter bore is formed in the aluminum alloy cover plate, the plastic gasket comprises a first plastic ring and a second plastic ring which are integrally injection molded, the first plastic ring is arranged at the bottom of the counter bore, the second plastic ring is arranged in the counter bore, and the second plastic ring is tightly clung to the inner wall of the counter bore under extrusion of the countersunk head screw. The principle of the utility model is as follows: when the screw is screwed, the inclined plane of the head part of the countersunk head screw is used for extruding and deforming the second plastic ring outwards, so that a gap between the locking screw and the aluminum alloy cover plate can be well filled, and a good waterproof effect is achieved; the waterproof performance can be improved without depending on the aluminum alloy cover plate, so that the aluminum alloy cover plate can be made thinner, and better economic benefit is achieved; meanwhile, the appearance requirement of locking the countersunk head screw and the aluminum alloy cover plate can be met.
As an improvement, the inner wall of the box body is provided with a bolt column, and the countersunk head screw is matched with the bolt column.
As an improvement, the first plastic ring is arranged between the bolt pillar and the aluminum alloy cover plate.
As an improvement, the counter bore comprises a cylindrical hole and a conical hole communicated with the cylindrical hole, and the height of the second plastic ring is higher than that of the cylindrical hole.
As an improvement, the EVA pad is provided with an avoidance hole corresponding to the first plastic ring.
As an improvement, a groove is arranged at the bottom of the aluminum alloy cover plate corresponding to the plastic gasket.
Compared with the prior art, the utility model has the beneficial effects that:
the inclined surface of the head part of the countersunk head screw is utilized to extrude and deform the second plastic ring outwards, so that a gap between the locking screw and the aluminum alloy cover plate can be well filled, and a good waterproof effect is achieved; the waterproof performance can be improved without depending on the aluminum alloy cover plate, so that the aluminum alloy cover plate can be made thinner, and better economic benefit is achieved; meanwhile, the appearance requirement of locking the countersunk head screw and the aluminum alloy cover plate can be met.
Drawings
Fig. 1 is a schematic diagram of a prior art screw with a screw in between.
Fig. 2 is a schematic view of a prior art belt-medium screw after locking.
FIG. 3 is a schematic view of the countersunk head screw of the present utility model before locking.
Fig. 4 is a schematic view of the countersunk head screw of the present utility model after being locked.
Detailed Description
The utility model is further described below with reference to the drawings.
As shown in fig. 3 and 4, the outdoor sound column top cover waterproof device comprises an aluminum alloy cover plate 1, an EVA pad 2 arranged between the aluminum alloy cover plate 1 and the upper end of the box body, a locking screw for locking the aluminum alloy cover plate 1 on the box body, and a plastic gasket 7 matched with the locking screw. The locking screw is a countersunk head screw 5, and a counter bore 6 matched with the countersunk head screw 5 is formed in the aluminum alloy cover plate 1; the counter bore 6 comprises a cylindrical hole and a conical hole communicated with the cylindrical hole, the head of the counter screw 5 is arranged in the conical hole after being locked, and the screw rod part of the counter screw passes through the cylindrical hole and is connected with the bolt post. The inner wall of the box body is provided with a bolt column, and the countersunk head screw 5 is matched with the bolt column. The plastic gasket 7 comprises a first plastic ring 71 and a second plastic ring 72 which are integrally injection molded, wherein the first plastic ring 71 and the second plastic ring 72 are coaxial and have the same inner hole diameter; the first plastic ring 71 is arranged at the bottom of the counter bore 6 and is positioned between the bolt column and the aluminum alloy cover plate 1, and the thickness of the first plastic ring 71 is thicker and can be used for the anti-loosening effect after the countersunk head screw 5 is locked; the second plastic ring 72 is arranged in the counter bore 6, the height of the second plastic ring 72 is higher than that of the cylindrical hole, and the thickness of the second plastic ring 72 is thinner, so that the second plastic ring 72 can deform under the action of the countersunk head screw 5, and the second plastic ring 72 is tightly clung to the inner wall of the counter bore 6 under the extrusion of the countersunk head screw 5. An avoidance hole is formed in the EVA pad 2 corresponding to the first plastic ring 71; the bottom of the aluminum alloy cover plate 1 is provided with a groove corresponding to the plastic gasket 7.
The principle of the utility model is as follows: when the screw is screwed, the inclined plane of the head part of the countersunk head screw 5 is used for extruding and deforming the second plastic ring 72 outwards, so that the gap between the locking screw and the aluminum alloy cover plate 1 can be well filled, and a good waterproof effect is achieved; the waterproof performance can be improved without depending on the aluminum alloy cover plate 1, so that the aluminum alloy cover plate 1 can be made thinner, and better economic benefit is achieved; meanwhile, the appearance requirement of the countersunk head screw 5 and the aluminum alloy cover plate 1 for locking can be met.
Claims (6)
1. An outdoor sound column top cover waterproof device comprises an aluminum alloy cover plate, an EVA pad arranged between the aluminum alloy cover plate and the upper end of a box body, and a locking screw for locking the aluminum alloy cover plate on the box body; the method is characterized in that: the aluminum alloy cover plate is characterized by further comprising a plastic gasket, the locking screw is a countersunk head screw, the aluminum alloy cover plate is provided with a counter bore, the plastic gasket comprises a first plastic ring and a second plastic ring which are integrally injection molded, the first plastic ring is arranged at the bottom of the counter bore, the second plastic ring is arranged in the counter bore, and the second plastic ring is tightly clung to the inner wall of the counter bore under extrusion of the countersunk head screw.
2. An outdoor column top waterproof apparatus according to claim 1, wherein: the inner wall of the box body is provided with a bolt column, and the countersunk head screw is matched with the bolt column.
3. An outdoor column top waterproof apparatus according to claim 2, wherein: the first plastic ring is arranged between the bolt column and the aluminum alloy cover plate.
4. An outdoor column top waterproof apparatus according to claim 1, wherein: the counter bore comprises a cylindrical hole and a conical hole communicated with the cylindrical hole, and the height of the second plastic ring is higher than that of the cylindrical hole.
5. An outdoor column top waterproof apparatus according to claim 1, wherein: and an avoidance hole is formed in the EVA pad corresponding to the first plastic ring.
6. An outdoor column top waterproof apparatus according to claim 1, wherein: and a groove is formed in the bottom of the aluminum alloy cover plate, corresponding to the plastic gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223140960.7U CN219304974U (en) | 2022-11-25 | 2022-11-25 | Outdoor sound column top cover waterproof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223140960.7U CN219304974U (en) | 2022-11-25 | 2022-11-25 | Outdoor sound column top cover waterproof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219304974U true CN219304974U (en) | 2023-07-04 |
Family
ID=86986883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223140960.7U Active CN219304974U (en) | 2022-11-25 | 2022-11-25 | Outdoor sound column top cover waterproof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219304974U (en) |
-
2022
- 2022-11-25 CN CN202223140960.7U patent/CN219304974U/en active Active
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