CN211507104U - Signal sounder with good waterproof performance - Google Patents
Signal sounder with good waterproof performance Download PDFInfo
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- CN211507104U CN211507104U CN201922491494.9U CN201922491494U CN211507104U CN 211507104 U CN211507104 U CN 211507104U CN 201922491494 U CN201922491494 U CN 201922491494U CN 211507104 U CN211507104 U CN 211507104U
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Abstract
The utility model provides a signal sounder that waterproof performance is good, include: the sounding device comprises a sounding device body and a waterproof shell, wherein the waterproof shell comprises a shell body and an upper cover; the shell is in a hollow cylinder shape, and the bottom of the shell is sealed by a bottom plate; the sounding device is positioned in the shell; the upper cover seals the top of the shell, and a first sound outlet hole is formed in the upper cover; the water baffle is positioned above the first sound outlet hole; a gap is reserved between the bottom surface of the water baffle and the top edge of the first sound outlet; the upper cover is also provided with a sound outlet channel which is an arc-shaped channel with a convex middle part; one end of the sound outlet channel penetrates through the inner wall of the first sound outlet hole and is communicated to the first sound outlet hole, and the other end of the sound outlet channel penetrates through the outer wall of the upper cover and is communicated to the outside. The buzzer with good waterproof performance is provided with the water baffle and the sound outlet channel, and the sound emitted by the sound generating device can be emitted while the water is retained.
Description
Technical Field
The utility model relates to a signal sounder field especially relates to a signal sounder that waterproof performance is good.
Background
The buzzer is an electroacoustic transducer. In practical use, some beepers are installed outside equipment or outdoors, most of the existing beepers do not have a waterproof function, and if the existing beepers are in rainy days or splashed by water, water entering the interior of the beepers can influence the operation of the beepers.
Therefore, there is a need for improvements in the prior art.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the problem that the prior signal sounder does not have the waterproof function, the utility model provides a signal sounder with good waterproof performance to solve the problems.
The utility model provides a technical scheme that its technical problem adopted is: a buzzer with good waterproof performance comprises:
the sounding device comprises a sounding device body and a waterproof shell, wherein the waterproof shell comprises a shell body and an upper cover; the shell is in a hollow cylinder shape, and the bottom of the shell is sealed by a bottom plate; the sounding device is positioned in the shell;
the upper cover seals the top of the shell, and a first sound outlet hole is formed in the upper cover;
the water baffle is positioned above the first sound outlet hole; a gap is reserved between the bottom surface of the water baffle and the top edge of the first sound outlet; a plurality of first fixing columns extend downwards from the bottom surface of the water baffle, and the end parts of the first fixing columns are fixedly connected with the upper cover;
the outer wall of the upper cover is provided with a circle of guide surface; the guide surface is a circular truncated cone-shaped surface with a small upper part and a large lower part, and the top circumference of the guide surface is connected with the top edge of the first sound outlet; the top circumference of the guide surface is positioned in the range of the orthographic projection of the water baffle towards the upper cover;
the upper cover is also provided with a sound outlet channel which is an arc-shaped channel with a convex middle part; one end of the sound outlet channel penetrates through the inner wall of the first sound outlet hole and is communicated to the first sound outlet hole, and the other end of the sound outlet channel penetrates through the outer wall of the upper cover and is communicated to the outside.
Preferably, the upper cover comprises a first part and a second part which are arranged in sequence from top to bottom;
the first part is conical with a small upper part and a big lower part, and is provided with a first through hole coaxial with the first part; a first connecting cylinder extends downwards from the bottom surface of the first through hole close to the edge of the first through hole, and the first connecting cylinder is in a hollow cylinder shape;
a plurality of second sound outlet holes are formed in the first connecting cylinder and penetrate through the outer wall and the inner wall of the first connecting cylinder; the second sound outlet hole is a long hole, and the length direction of the second sound outlet hole is along the axial direction of the first connecting cylinder;
the outer wall of the first connecting cylinder is also provided with an external thread, and the external thread is positioned below the second sound outlet hole and extends downwards to the bottom edge of the first connecting cylinder;
the second part is in a truncated cone shape with a small upper part and a big lower part, is coaxial with the first part, and is provided with a second through hole coaxial with the second part; the inner wall of the second through hole is provided with internal threads; the external thread of the first connecting cylinder is in threaded fit with the internal thread of the second through hole; the first through hole and the second through hole jointly form the first sound outlet hole;
a circle of annular bulge part is arranged on the top end face of the second part in a protruding mode, and the annular bulge part surrounds the second through hole; a circle of annular concave parts matched with the annular convex parts are recessed at the positions, corresponding to the annular convex parts, of the bottom surface of the first part; and a plurality of sound outlet channels are formed between the annular convex part and the annular concave part.
Preferably, the top surface of the annular convex part is an annular surface formed by a plurality of convex first arcs continuously; the first arc is a minor arc, one end of the first arc is connected to the top edge of the second through hole, and the other end of the first arc is connected to the edge of the top end face of the second portion.
Preferably, the device further comprises a substrate, wherein the substrate is a circular plate; the bottom plate is a circular plate coaxial with the shell; a second fixing column coaxial with the base plate axially extends out of the top surface of the base plate, and the end part of the second fixing column is connected with the center of the bottom surface of the bottom plate through a ball socket;
a telescopic pipe is also arranged between the base plate and the waterproof shell; one end of the extension tube is sleeved on the shell and is in sealing connection with the outer wall of the shell, and the other end of the extension tube is sleeved on the outer wall of the base plate and is in sealing connection with the outer wall of the base plate;
four first protruding parts radially extend out of the outer wall of the shell, the four first protruding parts are uniformly distributed along the circumferential direction of the shell, first threaded holes are formed in the first protruding parts, the axis of each first threaded hole is parallel to the axis of the shell, and first studs are spirally matched in the first threaded holes;
a circle of flange also extends out of the outer wall of the base plate, and the lower end of the first stud is abutted against the top surface of the flange;
the flange is provided with a plurality of fourth through holes, and the axis of each fourth through hole is parallel to the axis of the shell.
Preferably, the device also comprises a spherical head; a second bulge is arranged on the bottom surface of the bottom plate, and a spherical cavity suitable for accommodating the spherical head and a third through hole communicated with the spherical cavity are formed in the second bulge;
the spherical head is rotatably arranged in the spherical cavity; the end part of the first fixing column extends into the third through hole and is fixedly connected with the spherical head.
Preferably, the bottom plate is provided with a first threading through hole;
the bottom surface of the base plate is sunken to form a wire accommodating cavity, and a second threading through hole is formed in the wire accommodating cavity of the base plate; a first annular groove is further sunken in the bottom surface of the substrate, the first annular groove is arranged around the wire accommodating cavity, and a first rubber ring is arranged in the first annular groove;
and a lead connected with the sounding device sequentially penetrates through the first threading through hole and the second threading through hole to the outside.
Preferably, a first fixing ring extends downwards from the bottom surface of the second part; the outer wall of the first fixing ring is provided with an external thread; the inner wall of the shell is provided with internal threads, the first fixing ring extends into the shell, and the external threads of the first fixing ring are in threaded fit with the internal threads of the shell;
and a second annular groove is also sunken in the top end surface of the shell, a second rubber ring is arranged in the second annular groove, and the second rubber ring is abutted against the bottom surface of the second part.
The beneficial effects of the utility model are that, this kind of signal sounder that waterproof performance is good is equipped with breakwater and sound channel, can also scatter the sound that its sound production device sent in the manger plate.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a cross-sectional view of a preferred embodiment of the buzzer of the present invention with good waterproof performance.
Fig. 2 is an enlarged view at a in fig. 1.
Fig. 3 is an enlarged view at B in fig. 1.
Fig. 4 is a cross-sectional view of a first portion of a preferred embodiment of a buzzer in accordance with the present invention, showing good waterproof properties.
Fig. 5 is a sectional view of the casing of the preferred embodiment of the buzzer of the present invention.
Fig. 6 is a cross-sectional view of a substrate of a preferred embodiment of the buzzer of the present invention.
Fig. 7 is a schematic structural diagram of an optimal embodiment of the buzzer with good waterproof performance according to the present invention.
In the figure 1, a shell, 101, a bottom plate, 1011, a second lug boss, 1012, a first threading through hole, 102, a first lug boss, 1021, a first threaded hole, 103, a first stud bolt, 104, a second annular groove, 1041, a second rubber ring, 201, a first part, 2011, a first through hole, 2012, a first connecting cylinder, 2013, a second sound outlet hole, 2014, an annular recess, 202, a second part, 2021, a second through hole, 2022, an annular lug boss, 2023, an annular surface, 2024, a first fixing ring, 3, a water baffle, 301, a first fixing column, 4, a base plate, 401, a second fixing column, 4011, a spherical head, 402, a flange, 4021, a fourth through hole, 403, a line accommodating cavity, 404, a second threading through hole, 405, a first annular groove, 4051, a first rubber ring, 5, and a telescopic pipe.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing and simplifying the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1-7, the utility model provides a signal sounder that waterproof performance is good, include:
a sounding device (not shown) which is an electromagnetic buzzer.
The waterproof shell comprises a shell body 1 and an upper cover. The housing 1 has a hollow cylindrical shape, and the bottom of the housing 1 is closed by a bottom plate 101. The sound producing device is located within the housing 1. The top of the shell 1 is sealed by the upper cover, and a first sound outlet hole is formed in the upper cover. It should be noted that the sound outlet of the sound generating device should be aligned with the first sound outlet of the upper cover, so that the sound is emitted from the first sound outlet after the sound generating device is powered on.
And the water baffle 3 is positioned above the first sound outlet hole. A gap is reserved between the bottom surface of the water baffle 3 and the top edge of the first sound outlet. The bottom surface of the water baffle 3 also extends downwards to form a plurality of first fixing columns 301, and the end parts of the first fixing columns 301 are fixedly connected with the upper cover.
The outer wall of the upper cover is provided with a circle of guide surface. The guide surface is a circular truncated cone-shaped surface with a small upper part and a large lower part, and the circumference of the top of the guide surface is connected with the edge of the top of the first sound outlet. The top circumference of the guide surface is located within the range of the orthographic projection of the splash plate 3 toward the upper cover.
The upper cover is also provided with a sound outlet channel which is an arc-shaped channel with a convex middle part. One end of the sound outlet channel penetrates through the inner wall of the first sound outlet hole and is communicated to the first sound outlet hole, and the other end of the sound outlet channel penetrates through the outer wall of the upper cover and is communicated to the outside.
When raining or being splashed by water, the water falls vertically or obliquely from the upper part of the buzzer, the water falling onto the water baffle 3 falls onto the guide surface from the edge of the water baffle 3 and then slides onto the ground, and the external water cannot flow into the first sound outlet hole through the sound outlet channel and then flows into the shell 1 under the action of gravity because the sound outlet channel is an arc-shaped channel with a convex middle part. After the sound generating device is electrified, sound can be transmitted to the outside through the first sound outlet hole, the gap between the water baffle 3 and the first sound outlet hole and the sound outlet channel.
According to a further embodiment, the upper cover comprises a first portion 201 and a second portion 202 arranged in sequence from top to bottom.
The first portion 201 is conical with a small top and a large bottom, and the first portion 201 is provided with a first through hole 2011 coaxial with the first portion. A first connecting cylinder 2012 extends downwards from the bottom of the first through hole 2011 and abuts against the edge of the first through hole 2011, and the first connecting cylinder 2012 is hollow and cylindrical.
A plurality of second sound outlet holes 2013 are formed in the first connecting barrel 2012, and the second sound outlet holes 2013 penetrate through the outer wall and the inner wall of the first connecting barrel 2012. The second sound outlet 2013 is an elongated hole, and the length direction of the second sound outlet 2013 is along the axial direction of the first connecting cylinder 2012.
The outer wall of the first connecting cylinder 2012 is also provided with external threads, and the external threads are positioned below the second sound outlet 2013 and extend downwards to the bottom edge of the first connecting cylinder 2012.
The second portion 202 has a truncated cone shape with a small upper part and a large lower part, and the second portion 202 is coaxial with the first portion 201. The second portion 202 defines a second through hole 2021 coaxial therewith. The inner wall of the second through hole 2021 has an internal thread. The external threads of the first connecting cylinder 2012 are threadedly engaged with the internal threads of the second through hole 2021.
It should be noted that the first through hole 2011 and the second through hole 2021 together form a first sound outlet, and the water baffle 3 is located above the first through hole 2011. The outer wall of the first portion 201 is a guide surface, and the end of the first fixing column 301 is fixedly connected with the outer wall of the first portion 201.
The top end surface of the second portion 202 is protruded with a ring-shaped protrusion portion 2022, and the ring-shaped protrusion portion 2022 is disposed around the second through hole 2021. The bottom surface of the first portion 201 is recessed with a ring-shaped recess 2014 corresponding to the ring-shaped protrusion 2022 and matching with the ring-shaped protrusion 2022. A plurality of continuous sound outlet channels are formed between the annular convex part 2022 and the annular concave part 2014, and a ring of annular gaps are formed by the plurality of sound outlet channels.
In this embodiment, the top surface of the annular convex portion 2022 is an annular surface 2023 formed by continuously forming a plurality of convex first arcs. The first arc is a minor arc, one end of the first arc is connected to the top edge of the second through hole 2021, and the other end of the first arc is connected to the edge of the top end surface of the second portion 202.
In the present embodiment, by rotating the first portion 201, the distance between the annular convex portion 2022 and the annular concave portion 2014 (i.e., the size of the annular gap) and the length of the second sound outlet hole 2013 exposed out of the second through hole 2021 can be changed, thereby adjusting the size of the sound.
In this embodiment, a first fixing ring 2024 extends downward from the bottom surface of the second portion 202. The outer wall of the first fixing ring 2024 has an external thread. The inner wall of the housing 1 has an internal thread, the first fixing ring 2024 extends into the housing 1 and the external thread of the first fixing ring 2024 is screw-fitted with the internal thread of the housing 1
The top end surface of the casing 1 is further recessed with a second annular groove 104, a second rubber ring 1041 is arranged in the second annular groove 104, and the second rubber ring 1041 abuts against the bottom surface of the second portion 202, so that the sealing and waterproof effects are achieved.
According to a further embodiment, a base plate 4 is included, the base plate 4 being a circular plate. The bottom plate 101 is a circular plate coaxial with the housing 1. A second fixing column 401 coaxial with the base plate 4 axially extends from the top surface of the base plate 4, and the end of the second fixing column 401 is connected with the center of the bottom surface of the bottom plate 101 through a ball socket. It should be noted that the ball and socket joint is a universal joint.
An expansion pipe 5 is further arranged between the base plate 4 and the waterproof shell, wherein the expansion pipe 5 is also called an expansion joint, an expansion joint or a compensator and is made of plastic materials. One end of the telescopic pipe 5 is sleeved on the casing 1 and is connected with the outer wall of the casing 1 in a sealing way, and the other end of the telescopic pipe is sleeved on the outer wall of the base plate 4 and is connected with the outer wall of the base plate 4 in a sealing way. The telescopic tube 5 is hermetically connected with the outer wall of the housing 1 and the outer wall of the base plate 4 in a tight fit and sealing manner.
Four first protruding parts 102 radially extend out of the outer wall of the shell 1, the four first protruding parts 102 are uniformly distributed along the circumferential direction of the shell 1, first threaded holes 1021 are formed in the first protruding parts 102, the axis of each first threaded hole 1021 is parallel to the axis of the shell 1, and first studs 103 are spirally matched in the first threaded holes 1021.
A ring of flange 402 also extends from the outer wall of the base plate 4, and the lower end of the first stud 103 abuts against the top surface of the flange 402.
The flange 402 is provided with a plurality of fourth through holes 4021, and the axis of the fourth through hole 4021 is parallel to the axis of the housing 1.
In this embodiment, the specific way of ball-and-socket connection between the end of the second fixing column 401 and the center of the bottom surface of the bottom plate 101 is as follows: the bottom plate comprises a spherical head 4011, a second protrusion portion 1011 is arranged on the bottom surface of the bottom plate 101, and a spherical cavity suitable for accommodating the spherical head 4011 and a third through hole communicated with the spherical cavity are formed in the second protrusion portion 1011. The spherical head 4011 is rotatably disposed in the spherical cavity. The end of the first fixing column 301 extends into the third through hole and is fixedly connected with the spherical head 4011.
Since the waterproof effect is the best when the buzzer is installed horizontally (i.e. the axis of the housing 1 is along the vertical direction), and the wall surface of the device to which the buzzer needs to be installed is not all horizontal, in this embodiment, the screw passes through the fourth through hole 4021 to fix the substrate 4 on the wall surface of the device, and then the four first studs 103 are rotated, so that the axis of the housing 1 is along the vertical direction and the lower ends of the four first studs 103 all abut against the top surface of the flange 402, thereby ensuring that the buzzer can have a better waterproof effect when installed on an inclined wall surface.
In this embodiment, the bottom plate 101 is formed with a first threading hole 1012. The bottom surface of the base plate 4 is recessed to form a wire accommodating cavity 403, and a second threading through hole 404 is formed in the wire accommodating cavity 403 of the base plate 4. The bottom surface of the substrate 4 is further recessed with a first annular groove 405, the first annular groove 405 is disposed around the wire accommodating cavity 403, and a first rubber ring 4051 is disposed in the first annular groove 405. A lead (not shown) connected to the sound producing device passes through the first through hole 1012 and the second through hole 404 in sequence to the outside.
When the buzzer is installed, the lead connected with the sounding device is connected to a circuit of equipment needing the sounding device, and the sounding device is fixed on the equipment through the fourth through hole 4021 by a screw. At this time, the lead wire can be accommodated in the wire accommodating chamber 403, and the second rubber ring 1041 is attached to the wall surface of the apparatus, and prevents external water from passing through the gap between the substrate 4 and the wall surface of the apparatus.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. A buzzer with good waterproof performance is characterized by comprising:
the sounding device comprises a sounding device body and a waterproof shell, wherein the waterproof shell comprises a shell body and an upper cover; the shell is in a hollow cylinder shape, and the bottom of the shell is sealed by a bottom plate; the sounding device is positioned in the shell;
the upper cover seals the top of the shell, and a first sound outlet hole is formed in the upper cover;
the water baffle is positioned above the first sound outlet hole; a gap is reserved between the bottom surface of the water baffle and the top edge of the first sound outlet; a plurality of first fixing columns extend downwards from the bottom surface of the water baffle, and the end parts of the first fixing columns are fixedly connected with the upper cover;
the outer wall of the upper cover is provided with a circle of guide surface; the guide surface is a circular truncated cone-shaped surface with a small upper part and a large lower part, and the top circumference of the guide surface is connected with the top edge of the first sound outlet; the top circumference of the guide surface is positioned in the range of the orthographic projection of the water baffle towards the upper cover;
the upper cover is also provided with a sound outlet channel which is an arc-shaped channel with a convex middle part; one end of the sound outlet channel penetrates through the inner wall of the first sound outlet hole and is communicated to the first sound outlet hole, and the other end of the sound outlet channel penetrates through the outer wall of the upper cover and is communicated to the outside.
2. The buzzer with good waterproof performance as claimed in claim 1, wherein:
the upper cover comprises a first part and a second part which are sequentially arranged from top to bottom;
the first part is conical with a small upper part and a big lower part, and is provided with a first through hole coaxial with the first part; a first connecting cylinder extends downwards from the bottom surface of the first through hole close to the edge of the first through hole, and the first connecting cylinder is in a hollow cylinder shape;
a plurality of second sound outlet holes are formed in the first connecting cylinder and penetrate through the outer wall and the inner wall of the first connecting cylinder; the second sound outlet hole is a long hole, and the length direction of the second sound outlet hole is along the axial direction of the first connecting cylinder;
the outer wall of the first connecting cylinder is also provided with an external thread, and the external thread is positioned below the second sound outlet hole and extends downwards to the bottom edge of the first connecting cylinder;
the second part is in a truncated cone shape with a small upper part and a big lower part, is coaxial with the first part, and is provided with a second through hole coaxial with the second part; the inner wall of the second through hole is provided with internal threads; the external thread of the first connecting cylinder is in threaded fit with the internal thread of the second through hole; the first through hole and the second through hole jointly form the first sound outlet hole;
a circle of annular bulge part is arranged on the top end face of the second part in a protruding mode, and the annular bulge part surrounds the second through hole; a circle of annular concave parts matched with the annular convex parts are recessed at the positions, corresponding to the annular convex parts, of the bottom surface of the first part; and a plurality of sound outlet channels are formed between the annular convex part and the annular concave part.
3. The buzzer with good waterproof performance as claimed in claim 2, wherein:
the top surface of the annular convex part is an annular surface formed by a plurality of convex first arcs continuously; the first arc is a minor arc, one end of the first arc is connected to the top edge of the second through hole, and the other end of the first arc is connected to the edge of the top end face of the second portion.
4. The buzzer with good waterproof performance as claimed in claim 1, wherein:
the base plate is a circular plate; the bottom plate is a circular plate coaxial with the shell; a second fixing column coaxial with the base plate axially extends out of the top surface of the base plate, and the end part of the second fixing column is connected with the center of the bottom surface of the bottom plate through a ball socket;
a telescopic pipe is also arranged between the base plate and the waterproof shell; one end of the extension tube is sleeved on the shell and is in sealing connection with the outer wall of the shell, and the other end of the extension tube is sleeved on the outer wall of the base plate and is in sealing connection with the outer wall of the base plate;
four first protruding parts radially extend out of the outer wall of the shell, the four first protruding parts are uniformly distributed along the circumferential direction of the shell, first threaded holes are formed in the first protruding parts, the axis of each first threaded hole is parallel to the axis of the shell, and first studs are spirally matched in the first threaded holes;
a circle of flange also extends out of the outer wall of the base plate, and the lower end of the first stud is abutted against the top surface of the flange;
the flange is provided with a plurality of fourth through holes, and the axis of each fourth through hole is parallel to the axis of the shell.
5. The buzzer with good waterproof performance as claimed in claim 4, wherein:
also comprises a spherical head;
a second bulge is arranged on the bottom surface of the bottom plate, and a spherical cavity suitable for accommodating the spherical head and a third through hole communicated with the spherical cavity are formed in the second bulge;
the spherical head is rotatably arranged in the spherical cavity; the end part of the first fixing column extends into the third through hole and is fixedly connected with the spherical head.
6. The buzzer with good waterproof performance as claimed in claim 5, wherein:
the bottom plate is provided with a first threading through hole;
the bottom surface of the base plate is sunken to form a wire accommodating cavity, and a second threading through hole is formed in the wire accommodating cavity of the base plate; a first annular groove is further sunken in the bottom surface of the substrate, the first annular groove is arranged around the wire accommodating cavity, and a first rubber ring is arranged in the first annular groove;
and a lead connected with the sounding device sequentially penetrates through the first threading through hole and the second threading through hole to the outside.
7. The buzzer with good waterproof performance as claimed in claim 2, wherein:
a first fixing ring extends downwards from the bottom surface of the second part; the outer wall of the first fixing ring is provided with an external thread; the inner wall of the shell is provided with internal threads, the first fixing ring extends into the shell, and the external threads of the first fixing ring are in threaded fit with the internal threads of the shell;
and a second annular groove is also sunken in the top end surface of the shell, a second rubber ring is arranged in the second annular groove, and the second rubber ring is abutted against the bottom surface of the second part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922491494.9U CN211507104U (en) | 2019-12-31 | 2019-12-31 | Signal sounder with good waterproof performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922491494.9U CN211507104U (en) | 2019-12-31 | 2019-12-31 | Signal sounder with good waterproof performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211507104U true CN211507104U (en) | 2020-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922491494.9U Active CN211507104U (en) | 2019-12-31 | 2019-12-31 | Signal sounder with good waterproof performance |
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| Country | Link |
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| CN (1) | CN211507104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113453105A (en) * | 2021-08-31 | 2021-09-28 | 南昌龙旗信息技术有限公司 | Device with loudspeaker |
-
2019
- 2019-12-31 CN CN201922491494.9U patent/CN211507104U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113453105A (en) * | 2021-08-31 | 2021-09-28 | 南昌龙旗信息技术有限公司 | Device with loudspeaker |
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