CN216257560U - Explosion-proof bead structure of hand-held tooth flushing device - Google Patents
Explosion-proof bead structure of hand-held tooth flushing device Download PDFInfo
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- CN216257560U CN216257560U CN202122624086.3U CN202122624086U CN216257560U CN 216257560 U CN216257560 U CN 216257560U CN 202122624086 U CN202122624086 U CN 202122624086U CN 216257560 U CN216257560 U CN 216257560U
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Abstract
The utility model discloses an explosion-proof bead structure of a hand-held tooth flushing device, which is arranged in a machine core, wherein the machine core is provided with a bracket, the bracket is provided with a nickel-hydrogen battery and an explosion-proof bead, and the explosion-proof bead is limited and arranged on the bracket and is positioned in the same closed space with the nickel-hydrogen battery; the support on be provided with the mounting hole, explosion-proof pearl is through limit structure spacing installation in the mounting hole. Above-mentioned install explosion-proof pearl in towards inside nickel-hydrogen battery place airtight space of tooth ware, utilize explosion-proof pearl to absorb the hydrogen that nickel-hydrogen battery released, can prevent to produce the explosion risk after the hydrogen accumulation, also can avoid traditional waterproof ventilative membrane simultaneously and can't discharge the defect of hydrogen after the dust shutoff, provide duplicate protection for nickel-hydrogen battery.
Description
Technical Field
The utility model relates to the technical field of handheld tooth flushing devices, in particular to an explosion-proof bead structure of a handheld tooth flushing device.
Background
The tooth flushing device is a novel product which is popular in China in recent years, and the nickel-hydrogen battery is widely adopted in the portable tooth flushing device due to the advantages of low price, large capacity, long service life, stable voltage and the like.
The nickel-metal hydride battery can continuously release hydrogen in the charging and using processes, the hydrogen is accumulated in the tooth flushing device, and when the accumulated hydrogen exceeds the explosion limit, if sparks are generated, explosion can occur.
In order to effectively discharge hydrogen generated in the tooth flushing device and meet the IPX 7-grade waterproof requirement of the tooth flushing device on the market at present, a waterproof breathable film is used on a shell of the tooth flushing device to solve the problems of water resistance and air exhaust.
However, the waterproof breathable film has certain defects, the surface of the breathable film is easily adsorbed and covered by impurities such as dust and the like, the air permeability is lost, hydrogen generated by the nickel-metal hydride battery cannot be discharged, and when the hydrogen is accumulated to exceed the explosion limit, the explosion risk still exists.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides an anti-explosion bead structure of a hand-held tooth flushing device.
In order to achieve the purpose, the utility model adopts the following technical scheme: the anti-explosion bead structure of the hand-held tooth flushing device is arranged in the machine core, the machine core is provided with a bracket, the bracket is provided with a nickel-hydrogen battery and an anti-explosion bead, and the anti-explosion bead is limited and arranged on the bracket and is positioned in the same closed space with the nickel-hydrogen battery; the support on be provided with the mounting hole, explosion-proof pearl is through limit structure spacing installation in the mounting hole. Above-mentioned install explosion-proof pearl in towards inside nickel-hydrogen battery place airtight space of tooth ware, utilize explosion-proof pearl to absorb the hydrogen that nickel-hydrogen battery released, can prevent to produce the explosion risk after the hydrogen accumulation, also can avoid traditional waterproof ventilative membrane simultaneously and can't discharge the defect of hydrogen after the dust shutoff, provide duplicate protection for nickel-hydrogen battery.
In a further technical scheme, the mounting hole is a through hole and is communicated with the space where the nickel-metal hydride battery is located; the explosion-proof beads in the mounting holes can normally absorb hydrogen released by the nickel-metal hydride battery, so that the explosion-proof purpose is achieved.
In a further technical scheme, the limiting structure is a spring arranged in the mounting hole, and the explosion-proof bead is fastened in the mounting hole through the spring; or
The limiting structure is a bone position elastic sheet arranged at the mounting hole;
through the mode of spring, the pore wall at the mounting hole can be supported to the one end of spring, and the other end supports in explosion-proof pearl, makes explosion-proof pearl fastening in the mounting hole, can not roll or collide with the pore wall in the mounting hole along with the use of towards tooth ware.
In a further technical scheme, a plurality of bone position elastic pieces are arranged at intervals, and are used for clamping and limiting the explosion-proof beads to be separated from the mounting holes; the other mode of the limiting structure is that a bone position elastic sheet is adopted, the bone position elastic sheet is formed on the upper support or the lower support, and the structure is simple.
In a further technical scheme, the bracket comprises: the assembled surface of the upper bracket and the lower bracket is correspondingly provided with an upper groove and a lower groove, and the upper groove and the lower groove correspondingly form the mounting hole; the split type structure of support is convenient for nickel-metal hydride battery, explosion-proof pearl and other spare parts and support to assemble, and after upper bracket and lower carriage combination, upper groove and low groove correspond and carry on spacingly to explosion-proof pearl.
In a further technical scheme, an opening is formed in the wall of the upper groove and/or the lower groove, and the size of the opening is smaller than the diameter of the explosion-proof bead; the mounting hole is communicated with the outside of the bracket through the opening; the size of the opening is smaller than the diameter of the explosion-proof bead; make mounting hole and nickel-metal hydride battery place space intercommunication through the opening, guarantee the produced hydrogen of normal absorption nickel-metal hydride battery, through the restriction of opening size, the explosion-proof pearl of restriction can't break away from the mounting hole from the opening simultaneously.
In a further technical scheme, an upper cavity and a lower cavity are correspondingly arranged on the upper support and the lower support, and the upper cavity and the lower cavity are combined to form a space for assembling the nickel-metal hydride battery, so that the nickel-metal hydride battery is stably installed.
In a further technical scheme, the two sides of the support are respectively provided with the anti-explosion beads, so that the hydrogen absorption effect is better.
In a further technical scheme, the movement is installed in a casing, the casing is internally provided with the closed space, hydrogen generated by the nickel-metal hydride battery is released in the closed space, and the installation hole is communicated with the closed space, so that the explosion-proof beads in the installation hole can absorb the hydrogen in the closed space.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is an exploded view of an explosion-proof bead structure;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a schematic view of a first installation of an explosion proof bead;
FIG. 4 is a schematic view of a second mounting arrangement for an explosion proof bead.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
In the description of the present application, it is to be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present application. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1, the explosion-proof bead structure of the hand-held tooth flusher is disposed in a core, and the core is installed in a casing of the tooth flusher. The movement is provided with a bracket 100, the bracket 100 is provided with a nickel-metal hydride battery 200 and an explosion-proof bead 300, the explosion-proof bead 300 and the nickel-metal hydride battery 200 are positioned in the same closed space, and the explosion-proof bead 300 absorbs hydrogen generated by the nickel-metal hydride battery 200 to prevent explosion.
The casing is not drawn in the drawing, the specific shape and structure of the casing are not limited, and a closed space can be formed inside the casing, so that a good waterproof effect can be achieved.
The support 100 is provided with a mounting hole 101 for mounting the explosion-proof bead 300, and the explosion-proof bead 300 is tightly mounted in the mounting hole 101 through a limiting structure 400, so that the explosion-proof bead 300 is prevented from rolling in the mounting hole 101 and colliding with the hole wall of the mounting hole 101.
The explosion-proof bead 300 and the nickel-hydrogen battery 200 are in the same sealed space, and as the machine core is arranged in the machine shell of the tooth flushing device and needs to be waterproof, the sealed space is formed inside the machine shell, so that the explosion-proof bead 300 does not contact water or oil; the explosion-proof bead 300 and the nickel-hydrogen battery 200 are installed on the bracket 100 and are simultaneously positioned in the closed space formed inside the case, and hydrogen generated by the nickel-hydrogen battery 200 is released into the closed space formed inside the case and is absorbed by the explosion-proof bead 300;
the mounting hole 101 is a through hole and is communicated with a closed space outside the bracket 100, a space for assembling the nickel-hydrogen battery 200 is formed on the bracket 100, and the space is communicated with the outside of the bracket 100 and is communicated with the closed space formed in the casing.
The above-mentioned explosion-proof bead 300 is made of palladium based dehydrogenation catalyst, and the chemical principle of absorbing hydrogen is well known technology, and will not be described in detail herein.
The bracket 100 includes: the upper support 110 and the lower support 120 may be fastened or screwed or ultrasonically connected to each other between the upper support 110 and the lower support 120, and the separated structure facilitates the assembly of the nickel-metal hydride battery 200, the explosion-proof bead 300 and other components.
The following defines the assembled surface of the upper bracket 110 and the lower bracket 120 as an end surface.
The mounting holes 101 may be formed in the upper bracket 110 or the lower bracket 120, and after the explosion-proof bead 300 is mounted, the upper bracket 110 and the lower bracket 120 are assembled to limit the explosion-proof bead 300.
The limiting structure 400 is a spring 410 arranged in the mounting hole 101, and the explosion-proof bead 300 is fastened in the mounting hole 101 through the spring 410; or the limiting structure 400 is a bone position elastic sheet 420 arranged at the mounting hole 101.
As shown in fig. 3, in order to achieve the first mode of limiting the installation of the anti-explosion bead 300 in the installation hole 101, the installation hole 101 is opened in the lower bracket 120, a spring 410 is disposed in the installation hole 101, one end of the spring 410 is supported on the hole wall, and the other end is supported on the anti-explosion bead 300, after the upper bracket 110 is assembled with the lower bracket 120, one end of the anti-explosion bead 300 is supported on the spring 410, and the other end is supported on the end surface of the upper bracket 110, so that the anti-explosion bead 300 is limited in the installation hole 101; in the same manner, however, the mounting hole 101 is opened in the upper bracket 110, and the explosion-proof bead 300 is supported at one end by the spring 410 and at the other end by the end surface of the lower bracket 120.
As shown in fig. 4, a second mode of limiting the explosion-proof bead 300 to be installed in the installation hole 101 is provided, the installation hole 101 is opened in the lower bracket 120, a bone position elastic sheet 420 is arranged at the installation hole 101, a plurality of pieces of bone position elastic sheets 420 are arranged at intervals, the inner wall of each bone position elastic sheet 420 is an inclined surface, the explosion-proof bead 300 is installed in the installation hole 101, after the upper bracket 110 and the lower bracket 120 are assembled, the end surface of the upper bracket 110 contacts with the explosion-proof bead 300, and meanwhile, the explosion-proof bead 300 slightly extrudes the explosion-proof bead 300, the bone position elastic sheet 420 deforms, and the explosion-proof bead 300 is clamped, so that the explosion-proof bead 300 is stably installed in the installation hole 101; here, the bone position elastic piece 420 is integrally formed on the lower bracket 120.
Specifically, as shown in fig. 1-2, an upper groove 111 and a lower groove 121 are correspondingly formed on the assembled surface of the upper bracket 110 and the lower bracket 120, the upper groove 111 and the lower groove 121 correspondingly form the mounting hole 101, and an opening is formed on a groove wall of the upper groove 111 and/or the lower groove 121, the size of the opening is smaller than the diameter of the explosion-proof bead 300, so that the explosion-proof bead 300 is prevented from dislocation while the connection with the outside is realized; a plurality of bone position elastic pieces 420 are formed on the lower groove 121, the bone position elastic pieces 420 are arranged at intervals, a first end of each bone position elastic piece 420 is connected to the lower support 120, a second end is a free end, and the second end is relatively gathered towards the axis of the mounting hole 101; the bone position elastic sheet 420 can be extruded by the anti-explosion bead 300 to generate certain deformation outwards, so that the anti-explosion bead 300 is clamped and limited;
the groove walls of the upper groove 111 and the lower groove 121 are provided with openings, after the upper support 110 and the lower support 120 are assembled, the explosion-proof bead 300 is limited in the mounting hole 101 and is communicated with the outside of the support 100 through the openings to absorb hydrogen generated by the nickel-metal hydride battery 200, and the groove walls of the upper groove 111 and the lower groove 121 are provided with openings, so that the efficiency of the explosion-proof bead 300 for absorbing hydrogen can be increased.
Further, the upper bracket 110 and the lower bracket 120 are correspondingly provided with an upper cavity 112 and a lower cavity 122, the upper cavity 112 and the lower cavity 122 are combined to form a space for assembling the nickel-hydrogen battery 200, and the space is communicated with the outside of the bracket 100.
Further, the explosion-proof beads 300 are respectively disposed on both sides of the bracket 100, so that hydrogen can be well absorbed.
Further, the bracket 100 is further provided with a PCBA, a pump assembly, a DC motor, and other structures, and specific structures and installation manners of the PCBA, the pump assembly, the DC motor, and other structures are not limited.
Further, the inside airtight space that constitutes of casing, still can set up waterproof ventilated membrane on the casing, play waterproof effect, simultaneously, can absorb hydrogen through waterproof ventilated membrane discharge hydrogen and explosion-proof pearl 300, and under the waterproof ventilated membrane blockked up the condition, can also absorb hydrogen through explosion-proof pearl 300, play dual explosion-proof effect.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. Explosion-proof pearl structure of hand-held type towards tooth ware sets up in the core, and the core has support (100), its characterized in that:
the support (100) is provided with the nickel-metal hydride battery (200) and the explosion-proof bead (300), and the explosion-proof bead (300) is limited and arranged on the support (100) and is positioned in the same closed space with the nickel-metal hydride battery (200); the support (100) is provided with a mounting hole (101), and the explosion-proof bead (300) is mounted in the mounting hole (101) in a limiting manner through a limiting structure (400).
2. The explosion-proof bead structure of a hand-held water toothpick according to claim 1 wherein: the mounting hole (101) is a through hole and is communicated with the space where the nickel-metal hydride battery (200) is located.
3. The explosion-proof bead structure of a hand-held tooth irrigator according to claim 1 or 2, wherein: the limiting structure (400) is a spring (410) arranged in the mounting hole (101), and the explosion-proof bead (300) is fastened in the mounting hole (101) through the spring (410); or
The limiting structure (400) is a bone position elastic sheet (420) arranged at the mounting hole (101).
4. The burst bead structure of a hand-held irrigator according to claim 3, wherein: the bone position shrapnel (420) interval be provided with a plurality ofly, to explosion-proof pearl (300) centre gripping spacing, restriction explosion-proof pearl (300) break away from mounting hole (101).
5. The explosion-proof bead structure of a hand-held water toothpick according to claim 2 wherein: the stent (100) comprises: the combined upper support (110) and lower support (120) are characterized in that the assembled surface of the upper support (110) and lower support (120) is correspondingly provided with an upper groove (111) and a lower groove (121), and the upper groove (111) and the lower groove (121) correspondingly form the mounting hole (101).
6. The explosion-proof bead structure of a hand-held water toothpick according to claim 5 wherein: the wall of the upper groove (111) and/or the lower groove (121) is provided with an opening, and the mounting hole (101) is communicated with the outside of the bracket (100) through the opening; the opening size is smaller than the diameter of the explosion-proof bead (300).
7. The burst bead structure of a hand-held irrigator according to claim 6, wherein: the nickel-metal hydride battery assembly is characterized in that an upper cavity (112) and a lower cavity (122) are correspondingly arranged on the upper support (110) and the lower support (120), and the upper cavity (112) and the lower cavity (122) are combined to form a space for assembling the nickel-metal hydride battery (200).
8. The explosion-proof bead structure of a hand-held water toothpick according to claim 1 wherein: the two sides of the bracket (100) are respectively provided with the explosion-proof beads (300).
9. The explosion-proof bead structure of a hand-held water toothpick according to claim 1 wherein: the movement is arranged in a machine shell, the machine shell forms the closed space, hydrogen generated by the nickel-metal hydride battery (200) is released in the closed space, and the mounting hole (101) is communicated with the closed space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122624086.3U CN216257560U (en) | 2021-10-29 | 2021-10-29 | Explosion-proof bead structure of hand-held tooth flushing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122624086.3U CN216257560U (en) | 2021-10-29 | 2021-10-29 | Explosion-proof bead structure of hand-held tooth flushing device |
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| CN216257560U true CN216257560U (en) | 2022-04-12 |
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| CN202122624086.3U Active CN216257560U (en) | 2021-10-29 | 2021-10-29 | Explosion-proof bead structure of hand-held tooth flushing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115464395A (en) * | 2022-09-21 | 2022-12-13 | 珠海市梅木自动化科技有限公司 | Charging needle and explosion-proof bead assembly machine |
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2021
- 2021-10-29 CN CN202122624086.3U patent/CN216257560U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115464395A (en) * | 2022-09-21 | 2022-12-13 | 珠海市梅木自动化科技有限公司 | Charging needle and explosion-proof bead assembly machine |
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