CN210224237U - Waterproof filter - Google Patents
Waterproof filter Download PDFInfo
- Publication number
- CN210224237U CN210224237U CN201921627091.6U CN201921627091U CN210224237U CN 210224237 U CN210224237 U CN 210224237U CN 201921627091 U CN201921627091 U CN 201921627091U CN 210224237 U CN210224237 U CN 210224237U
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- CN
- China
- Prior art keywords
- shell
- screw hole
- annular groove
- annular
- cover plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a waterproof filter, which comprises a shell with a rectangular opening at the upper end and a cover plate covering the upper end of the shell, wherein the upper surface of the shell is provided with an annular groove surrounding the opening, and an annular silica gel strip is arranged in the annular groove; the cover plate is provided with a flange corresponding to the upper surface of the shell, the lower end of the flange is provided with a pressing ring corresponding to the annular groove, the pressing ring is transversely provided with a plurality of fixing holes in a penetrating manner, and the outer side wall of the shell is provided with a first screw hole which corresponds to the fixing holes and has the same diameter; the first screw hole is in threaded connection with a first bolt penetrating through the fixing hole, one end of the first screw hole, which is close to the annular groove, is provided with an annular step, and the annular step is provided with a seal sleeved on the first bolt; easy dismounting, and when the screw appears becoming flexible, still can play waterproof dustproof effect, overall structure is simple, and is with low costs.
Description
Technical Field
The utility model relates to a communication equipment technical field, more specifically say, relate to a waterproof wave filter.
Background
A filter is widely used in the communication field, especially in the radio frequency communication field, as a frequency selection device, in a base station for completing the transmission and reception of signals in a communication system, the filter is used for selecting communication signals and eliminating clutter or interference signals except the communication signal frequency; however, the existing filter often works in a relatively humid or water-accumulated environment, so that water may permeate into the filter to damage components inside the filter; at present, the waterproof rubber ring between the filter and the cover plate is unreasonable in structure, and when screws for locking the shell and the cover plate are loosened, the waterproof effect of the waterproof rubber ring is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, a waterproof wave filter is provided.
The utility model provides a technical scheme that its technical problem adopted is:
constructing a waterproof filter, which comprises a shell with a rectangular opening at the upper end and a cover plate covering the upper end of the shell; the upper surface of the shell is provided with an annular groove surrounding the opening, and an annular silica gel strip is arranged in the annular groove; the cover plate is provided with a flange corresponding to the upper surface of the shell, the lower end of the flange is provided with a pressing ring corresponding to the annular groove, the pressing ring is transversely provided with a plurality of fixing holes in a penetrating manner, and the outer side wall of the shell is provided with a first screw hole which corresponds to the fixing holes and has the same diameter; the first screw hole is in threaded connection with a first bolt penetrating through the fixing hole, an annular step is arranged at an opening at one end, close to the annular groove, of the first screw hole, and a sealing ring sleeved on the first bolt is arranged on the annular step.
Waterproof wave filter, wherein, the four corners department of apron vertically runs through and is equipped with the locating hole, the casing upper surface be equipped with the coaxial second screw of locating hole, second screw threaded connection has and passes the second bolt of locating hole.
Waterproof wave filter, wherein, the second screw sets up the ring-shaped groove bottom, the annular silica gel strip is including centering on the ring portion of second screw.
Waterproof wave filter, wherein, the lower surface of clamping ring is the arc.
The beneficial effects of the utility model reside in that: during the assembly, the clamping ring on the cover plate is opposite to the annular groove at the upper end of the shell, then the cover plate is pressed downwards, so that the clamping ring extrudes the annular silica gel strip, the fixing hole is coaxial with the first screw hole, the screw hole is screwed in through the first bolt and the fixing hole is penetrated, the assembly and the disassembly are convenient, when the screw is loosened, the waterproof and dustproof effect can be still played, the whole structure is simple, and the cost is low.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to the drawings:
fig. 1 is a sectional view of a waterproof filter according to a preferred embodiment of the present invention;
fig. 2 is a partially enlarged view of a cut-away schematic view of a waterproof filter according to a preferred embodiment of the present invention;
fig. 3 is a top view of the housing of the waterproof filter according to the preferred embodiment of the present invention;
fig. 4 is a top view of the cover plate of the waterproof filter according to the preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, a clear and complete description will be given below with reference to the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of protection of the present invention.
The waterproof filter of the preferred embodiment of the present invention is shown in fig. 1, and referring to fig. 2-4, comprises a casing 1 with a rectangular opening at the upper end, and a cover plate 2 covering the upper end of the casing 1, wherein the upper surface of the casing 1 is provided with an annular groove 11 surrounding the opening, and an annular silica gel strip 3 is arranged in the annular groove 11; the cover plate 2 is provided with a flange 4 corresponding to the upper surface of the shell 1, the lower end of the flange 4 is provided with a press ring 5 corresponding to the annular groove 11, the press ring 5 is transversely provided with a plurality of fixing holes 51 in a penetrating manner, and the outer side wall of the shell 1 is provided with a first screw hole 12 corresponding to the fixing holes 51 and having the same diameter; the first screw hole 12 is in threaded connection with a first bolt 6 penetrating through the fixing hole 51, an annular step 13 is arranged at an opening of one end, close to the annular groove 11, of the first screw hole 12, and a sealing ring 7 sleeved on the first bolt 6 is arranged on the annular step 13; during the assembly, it is relative with the annular groove 11 of casing 1 upper end with clamping ring 5 on the apron 2, then push down apron 2 for 5 shape silica gel strips 3 of clamping ring extrusion ring, fixed orifices 51 are coaxial with first screw 12 simultaneously, then twist the screw and pass fixed orifices 51 through first bolt 6, easy dismounting, and when the screw appears becoming flexible, still can play waterproof dustproof effect, overall structure is simple, and is with low costs.
As shown in fig. 3-4, positioning holes 21 longitudinally penetrate through four corners of the cover plate 2, a second screw hole 14 coaxial with the positioning holes 21 is formed in the upper surface of the housing 1, and a second bolt 8 penetrating through the positioning holes 21 is connected to the second screw hole 14 in a threaded manner; the cover plate 2 is convenient to press down, the pressing ring 5 extrudes the ring-shaped silica gel strip 3, and the fixing hole 51 is coaxial with the first screw hole 12.
As shown in fig. 3, the second screw hole 14 is provided at the bottom of the annular groove 11, and the annular silicone strip 3 includes an annular portion 31 surrounding the second screw hole 14; water is prevented from penetrating into the filter from the second screw holes 14.
As shown in fig. 1, the lower surface of the pressing ring 5 is arc-shaped; facilitating entry of the pressure ring 5 into the annular groove 11.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.
Claims (4)
1. A waterproof filter comprises a shell with a rectangular opening at the upper end and a cover plate covering the upper end of the shell; the improved structure is characterized in that an annular groove surrounding the opening is formed in the upper surface of the shell, and an annular silica gel strip is arranged in the annular groove; the cover plate is provided with a flange corresponding to the upper surface of the shell, the lower end of the flange is provided with a pressing ring corresponding to the annular groove, the pressing ring is transversely provided with a plurality of fixing holes in a penetrating manner, and the outer side wall of the shell is provided with a first screw hole which corresponds to the fixing holes and has the same diameter; the first screw hole is in threaded connection with a first bolt penetrating through the fixing hole, an annular step is arranged at an opening at one end, close to the annular groove, of the first screw hole, and a sealing ring sleeved on the first bolt is arranged on the annular step.
2. The waterproof filter according to claim 1, wherein positioning holes are longitudinally formed through four corners of the cover plate, a second screw hole coaxial with the positioning holes is formed in the upper surface of the housing, and a second bolt passing through the positioning holes is threadedly connected to the second screw hole.
3. The waterproof filter according to claim 2, wherein the second screw hole is provided at a bottom of the annular groove, and the annular silicone strip includes a circular ring portion surrounding the second screw hole.
4. The watertight filter according to claim 1, wherein the lower surface of the pressure ring is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921627091.6U CN210224237U (en) | 2019-09-27 | 2019-09-27 | Waterproof filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921627091.6U CN210224237U (en) | 2019-09-27 | 2019-09-27 | Waterproof filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210224237U true CN210224237U (en) | 2020-03-31 |
Family
ID=69921541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921627091.6U Expired - Fee Related CN210224237U (en) | 2019-09-27 | 2019-09-27 | Waterproof filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210224237U (en) |
-
2019
- 2019-09-27 CN CN201921627091.6U patent/CN210224237U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200331 |