CN211750220U - Vibration structure of electric toothbrush - Google Patents
Vibration structure of electric toothbrush Download PDFInfo
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- CN211750220U CN211750220U CN201922245595.8U CN201922245595U CN211750220U CN 211750220 U CN211750220 U CN 211750220U CN 201922245595 U CN201922245595 U CN 201922245595U CN 211750220 U CN211750220 U CN 211750220U
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- electric toothbrush
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Abstract
The utility model provides an electric toothbrush's vibrating structure contains an eccentric bar, the both ends of this eccentric bar are formed with a transmission portion and a counter weight portion respectively, this transmission portion receives a drive power rotation and drives this counter weight portion and produce eccentric vibration, this counter weight portion has an opening and is equipped with an accommodation space to the indent, a cover piece corresponds the lid and closes this opening, be equipped with a balancing weight in this accommodation space and be used for increasing the part or whole weight of this counter weight portion, make this counter weight portion rely on the balancing weight of increase to produce the central axis of the skew this eccentric bar of balancing weight unbalance.
Description
Technical Field
The utility model relates to a vibrating structure, in particular to a vibrating structure of an electric toothbrush.
Background
The electric toothbrush has the advantages that the toothpaste can generate foam in a vibration mode without manual operation, an eccentric shaft is arranged in the conventional electric toothbrush, a counterweight unit is arranged on the eccentric shaft, the eccentric shaft generates vibration due to the unbalance of the counterweight unit when rotating, and the counterweight unit is generally provided with an ㄈ -shaped unfilled corner.
However, the ㄈ -shaped unfilled corner of the conventional weight unit causes wind resistance and noise when the eccentric shaft rotates.
Therefore, how to solve the above problems is the direction of efforts required by researchers in the field.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to reduce the wind resistance and noise when the eccentric shaft of the electric toothbrush rotates.
To achieve the above object, the present invention provides a vibration structure of an electric toothbrush, comprising:
a transmission part and a counterweight part are respectively formed at two ends of an eccentric rod, the transmission part is driven by a driving force to rotate to drive the counterweight part to generate eccentric vibration, the counterweight part is provided with an opening which is inwards concave and provided with a containing space, a counterweight block is arranged in the containing space and used for increasing the partial or total weight of the counterweight part, the counterweight part generates counterweight unbalance and deviates from a central axis of the eccentric rod, and a cover part correspondingly covers the opening.
The vibration structure of the electric toothbrush, wherein: the counterweight part and the cover part correspondingly cover and seal the outer surface of the counterweight part.
The vibration structure of the electric toothbrush, wherein: the accommodating space is selected to be a circular section or a polygonal section corresponding to the cover piece, and the balancing weight is selected to be a semicircular section or a polygonal section corresponding to the accommodating space.
The vibration structure of the electric toothbrush, wherein: the counterweight block is made of metal or nonmetal material.
The vibration structure of the electric toothbrush, wherein: the balancing weight is integrally formed with the accommodating space or fixedly combined with the accommodating space through any one of the modes of injection coating, bonding, clamping, close fitting, welding and screw locking.
The vibration structure of the electric toothbrush, wherein: the counterweight part is provided with two through holes corresponding to the opening, the through holes radially penetrate through the outer surface of the counterweight part, the outer surface of the counterweight part is concavely provided with two hooked holes corresponding to the two through holes, the cover part is provided with two hooking legs corresponding to the opening, the tail ends of the two hooking legs are respectively provided with a clamping part, the two hooking legs respectively penetrate through the two through holes, and the clamping parts of the two hooking legs are respectively clamped and hooked in the two hooked holes.
The vibration structure of the electric toothbrush, wherein: also comprises a driving source, a vibrating rod and a cleaning sleeve head, wherein the driving source is used for outputting the driving force, the driving source is correspondingly jointed with one end of the transmission part far away from the counterweight part and outputs the driving force to the eccentric rod, the vibrating rod has a first closed end and a first open end, the first closed end and the first open end together define a first space, the first closed end protrudes towards the first space direction to form a first combination part, one end part of the counterweight unit far away from the eccentric rod is provided with a second combination part, the eccentric rod is arranged in the first space from the first open end, and the first combination part is correspondingly jointed with the second combination part, the cleaning sleeve head is provided with a second closed end and a second open end which jointly define a second space, the second closed end is externally provided with a brush part, and the brush head is sleeved outside the swinging rod through the second space.
The vibration structure of the electric toothbrush, wherein: the eccentric rod and the cover member are made of thermoplastic material.
By virtue of the utility model discloses this design makes this counter weight portion surface reduce unfilled corner, can reach the efficiency that reduces windage and noise reduction when this counter weight portion is rotatory.
Drawings
FIG. 1 is an exploded perspective view of a first embodiment of a vibrating structure of an electric toothbrush of the present invention;
FIG. 2 is a perspective combination view of a first embodiment of the vibrating structure of the electric toothbrush of the present invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 2 showing a vibrating structure of the electric toothbrush according to the present invention;
FIG. 4 is a sectional view taken along line B-B of FIG. 2 showing a vibrating structure of the electric toothbrush according to the present invention;
FIG. 5 is a schematic view of an alternative embodiment of the vibrating structure of the electric toothbrush of the present invention;
FIG. 6 is a schematic view of an alternative embodiment of the first embodiment of the vibrating structure of the electric toothbrush of the present invention;
FIG. 7 is an exploded perspective view of a second embodiment of the vibrating structure of the electric toothbrush of the present invention;
FIG. 8 is another perspective view of the second embodiment of the vibrating structure of the electric toothbrush of the present invention;
FIG. 9 is a perspective combination view of a second embodiment of the vibrating structure of the electric toothbrush of the present invention;
FIG. 10 is a cross-sectional view taken along line C-C of FIG. 9 illustrating a vibrating structure of the electric toothbrush according to the present invention;
FIG. 11 is an exploded perspective view of a third embodiment of the vibrating structure of the electric toothbrush of the present invention;
FIG. 12 is a perspective combination view of a third embodiment of the vibrating structure of the electric toothbrush of the present invention;
fig. 13 is a cross-sectional view taken along line D-D of fig. 12 showing a vibration structure of the electric toothbrush of the present invention;
FIG. 14 is a resting view of the vibrating structure of the electric toothbrush of the present invention;
fig. 15 is a vibration diagram of the vibration structure of the electric toothbrush of the present invention.
Description of reference numerals: an eccentric rod 1; a transmission section 11; a transmission shaft center 11 t; a counterweight axis 12 t; a weight portion 12; an opening 121; an accommodating space 122; a weight 124; a through-hole 127; hooked apertures 128; a central axis 14; a cover member 15; a hook pin 151; a hook portion 152; a second combining portion 18; a drive source 3; a vibrating rod 4; a first closed end 41; a first open end 42; the first space 43; a first combining portion 44; a cleaning sleeve head 5; a second closed end 51; a second open end 52; the second space 53; and a brush portion 54.
Detailed Description
The above objects, together with the structure and functional characteristics of the invention, will be best understood from the following description of the preferred embodiments when read in connection with the accompanying drawings.
Referring to fig. 1 to 4, which are an exploded perspective view, an assembled perspective view, a sectional view taken along line a-a of fig. 2 and a sectional view taken along line B-B of fig. 2 of the vibrating structure of the electric toothbrush of the present invention, as shown in the drawings, the vibrating structure of the electric toothbrush of the present invention includes an eccentric rod 1, the eccentric rod 1 is an axially extending rod-like shaft (core), and a transmission part 11 and a weight part 12 are formed at two ends of the eccentric rod 1, respectively. The transmission part 11 and the weight part 12 can be integrally formed, or the transmission part 11 and the weight part 12 can be two independent elements and fixedly combined by any one of the methods of injection coating, bonding, clamping, tight fitting, welding and screw locking.
The transmission portion 11 is rotated by a driving force, which is output by a driving source, and the specific structure of the driving source will be described in detail in other embodiments.
The weight portion 12 has an opening 121 with a receiving space 122 recessed inward, and a weight block 124 is disposed in the receiving space 122 for increasing the local weight of the weight portion 12, so that the weight portion 12 generates a weight imbalance deviating from a central axis 14 of the eccentric rod 1. The unbalance of the weight is that the partial or total weight added by the weight block 124 causes the center of gravity of the weight portion 12 to deviate from the central axis 14 of the eccentric rod 1, so that the weight portion 12 is driven by the transmission portion 11 to rotate to generate eccentric vibration.
The weight block 124 is axially extended, equally spaced, or unequally spaced in the accommodating space 122, wherein the axially extended weight block 124 is configured to increase the total weight in the accommodating space 122, and the equally spaced and unequally spaced weight blocks 124 are configured to increase the local weight in the accommodating space 122, so that the weight portion 12 is unbalanced.
A cover 15 correspondingly covers the opening 121, and the accommodating space 122 is formed in any one of a circular cross section (as shown in fig. 4), a polygonal cross section (as shown in fig. 5) and an arbitrary geometric cross section (as shown in fig. 6) corresponding to the cover 15.
In the embodiment, the counterweight 124 has a semicircular cross section corresponding to the accommodating space 122 (as shown in fig. 4), and the diameter of the counterweight 124 is equal to the diameter of the accommodating space 122, but the invention is not limited thereto, and in other embodiments, the counterweight 124 may have a polygonal cross section (as shown in fig. 5) or a cross section with any geometric shape (as shown in fig. 6). In addition, the weight 124 can be made of metal or nonmetal.
In the embodiment, the weight block 124 and the accommodating space 122 are shown as two independent components, and are fixed by any one of injection, adhesion, clamping, tight fitting, welding and screwing, but the invention is not limited thereto, and in other embodiments, the weight block 124 and the accommodating space 122 may be shown as being integrally formed.
Furthermore, the eccentric rod 1 and the cover 14 may be made of thermoplastic material, such as but not limited to Polyoxymethylene (POM), which has the function of wear resistance.
Rely on the utility model discloses this design, because the central axis 14 eccentric settings of this balancing weight 124 relative this eccentric rod 1 makes this counter weight portion 12 rely on the part of increase or whole weight to produce the counter weight unbalance and send this central axis 14 of focus offset, when making this eccentric rod 1 receive this drive power rotatory, this counter weight portion 12 constantly changes and produces eccentric vibration's effect in the ascending position of circumferencial direction. And the counterweight part 12 of the eccentric rod 1 and the cover part 15 are correspondingly covered, so that the unfilled corner on the outer surface of the counterweight part 12 is reduced, and thus, when the counterweight part 12 eccentrically rotates, the wind resistance and the noise can be reduced.
Referring to fig. 7 to 10, an exploded perspective view, an assembled perspective view, and a cross-sectional view taken along line C-C of fig. 9 of the vibrating structure of the electric toothbrush of the present invention are shown, and referring to fig. 1 to 6 of the drawings, as shown in the drawings, the structure and function of the vibrating structure of the present invention are the same as those of the first embodiment, and therefore will not be described herein, but the difference between the present embodiment and the first embodiment is that the weight portion 12 is provided with two through holes 127 radially penetrating through the outer surface of the weight portion 12 corresponding to the opening 121, the outer surface of the weight portion 12 is provided with two hooked holes 128 corresponding to the two through holes 127, the cover 15 is provided with two hooking legs 151 corresponding to the opening 121, the ends of the two hooking legs 151 are respectively provided with a hooking portion 152, and the two hooking legs 151 and the hooking portions 152 are substantially L-shaped. When the weight member 124 needs to be fixed and pressed against the accommodating space 122 by the cover member 15, the two hooking legs 151 can pass through the two through holes 127, and the hooking portions 152 can be hooked in the two hooked holes 128, respectively, so that the cover member 15 presses against the weight member 124 to fix the weight member 124. When the cover 15 needs to be opened, the hook portions 152 can be forced in opposite directions, so that the hooking legs 151 can be separated from the through holes 127, and the cover 15 can be separated from the weight portion 12.
Please refer to fig. 11 to 15, which are an exploded perspective view, an assembled perspective view, a cross sectional view along line D-D, a static schematic view and a vibration schematic view of a third embodiment of the vibrating structure of the electric toothbrush of the present invention, and refer to fig. 1 to 10, as shown in the figures, the partial structure and function of the present embodiment are the same as those of the first and second embodiments, and therefore will not be described herein again, but the difference between the present embodiment and the first and second embodiments is that the vibrating structure of the electric toothbrush of the present invention further comprises a driving source 3, a vibrating rod 4, a cleaning head 5 and a main body portion 6.
The driving source 3 is illustrated as a motor, and the driving source 3 is correspondingly engaged with an end of the transmission portion 11 away from the counterweight portion 12 to output the driving force to the eccentric rod 1.
The vibrating rod 4 has a first closed end 41 and a first open end 42, the first closed end 41 and the first open end 42 together define a first space 43, and the first closed end 41 protrudes toward the first space 43 to form a first combining portion 44.
The counterweight part 12 has a second combining part 18 at an end away from the transmission part 11, the eccentric rod 1 is placed into the first space 43 from the first open end 42, and the first combining part 44 is correspondingly engaged with the second combining part 18.
The cleaning sleeve head 5 has a second closed end 51 and a second open end 52, the second closed end 51 and the second open end 52 together define a second space 53, a brush portion 54 is disposed outside the second closed end 51, and the cleaning sleeve head 5 is sleeved outside the vibrating rod 4 through the second space 53.
The main body 6 is held by a user and is used for correspondingly connecting with the cleaning sleeve head 5, and the driving source 3 is accommodated in the main body 6.
Thus, when the driving source 3 is driven to rotate, the driving force is generated to drive the transmission portion 11 to rotate the eccentric rod 1, and the counterweight portion 12 generates an eccentric vibration effect. The vibration generated by the weight portion 12 is transmitted to the first combination portion 44 of the vibration rod 4 via the second combination portion 18, and further transmitted to the cleaning head set 5, so that the cleaning head set 5 correspondingly generates vibration.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A vibration structure of a power toothbrush, comprising:
a transmission part and a counterweight part are respectively formed at two ends of an eccentric rod, the transmission part is driven by a driving force to rotate to drive the counterweight part to generate eccentric vibration, the counterweight part is provided with an opening which is inwards concave and provided with a containing space, a counterweight block is arranged in the containing space and used for increasing the partial or total weight of the counterweight part, the counterweight part generates counterweight unbalance and deviates from a central axis of the eccentric rod, and a cover part correspondingly covers the opening.
2. The vibrating structure of an electric toothbrush according to claim 1, wherein: the counterweight part and the cover part correspondingly cover and seal the outer surface of the counterweight part.
3. The vibrating structure of an electric toothbrush according to claim 1, wherein: the accommodating space is selected to be a circular section or a polygonal section corresponding to the cover piece, and the balancing weight is selected to be a semicircular section or a polygonal section corresponding to the accommodating space.
4. The vibrating structure of an electric toothbrush according to claim 1, wherein: the counterweight block is made of metal or nonmetal material.
5. The vibrating structure of an electric toothbrush according to claim 1, wherein: the balancing weight is integrally formed with the accommodating space or fixedly combined with the accommodating space through any one of the modes of injection coating, bonding, clamping, close fitting, welding and screw locking.
6. The vibrating structure of an electric toothbrush according to claim 1, wherein: the counterweight part is provided with two through holes corresponding to the opening, the through holes radially penetrate through the outer surface of the counterweight part, the outer surface of the counterweight part is concavely provided with two hooked holes corresponding to the two through holes, the cover part is provided with two hooking legs corresponding to the opening, the tail ends of the two hooking legs are respectively provided with a clamping part, the two hooking legs respectively penetrate through the two through holes, and the clamping parts of the two hooking legs are respectively clamped and hooked in the two hooked holes.
7. The vibrating structure of an electric toothbrush according to claim 1, wherein: also comprises a driving source, a vibrating rod and a cleaning sleeve head, wherein the driving source is used for outputting the driving force, the driving source is correspondingly jointed with one end of the transmission part far away from the counterweight part and outputs the driving force to the eccentric rod, the vibrating rod has a first closed end and a first open end, the first closed end and the first open end together define a first space, the first closed end protrudes towards the first space direction to form a first combination part, one end part of the counterweight unit far away from the eccentric rod is provided with a second combination part, the eccentric rod is arranged in the first space from the first open end, and the first combination part is correspondingly jointed with the second combination part, the cleaning sleeve head is provided with a second closed end and a second open end which jointly define a second space, the second closed end is externally provided with a brush part, and the brush head is sleeved outside the swinging rod through the second space.
8. The vibrating structure of an electric toothbrush according to claim 1, wherein: the eccentric rod and the cover member are made of thermoplastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922245595.8U CN211750220U (en) | 2019-12-13 | 2019-12-13 | Vibration structure of electric toothbrush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922245595.8U CN211750220U (en) | 2019-12-13 | 2019-12-13 | Vibration structure of electric toothbrush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211750220U true CN211750220U (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922245595.8U Active CN211750220U (en) | 2019-12-13 | 2019-12-13 | Vibration structure of electric toothbrush |
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| Country | Link |
|---|---|
| CN (1) | CN211750220U (en) |
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- 2019-12-13 CN CN201922245595.8U patent/CN211750220U/en active Active
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