CN212506041U - Blower and air pipe mechanism - Google Patents
Blower and air pipe mechanism Download PDFInfo
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- CN212506041U CN212506041U CN202020933640.9U CN202020933640U CN212506041U CN 212506041 U CN212506041 U CN 212506041U CN 202020933640 U CN202020933640 U CN 202020933640U CN 212506041 U CN212506041 U CN 212506041U
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- 238000007664 blowing Methods 0.000 description 1
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Abstract
The application relates to a blower and air pipe mechanism, which comprises a shell with an air inlet; a motor disposed within the housing; the fan is driven by the motor to rotate so that the main air flow enters from the air inlet; the air pipe mechanism is provided with an air outlet, and air flow is blown out of the air outlet; the air pipe mechanism comprises a first air pipe connected with the shell and a second air pipe connected with the first air pipe; at least one position where the second air pipe is connected with the first air pipe, a gap is formed between the first air pipe and the second air pipe so as to supplement air flow; the air outlet is arranged on the second air pipe; the second air pipe also comprises a support ring sleeved with the first air pipe and support ribs for connecting the support ring and the second air pipe, and main air flow flows into the second air pipe from the space between the support ribs; the number of the support ribs is at least four, or the arc length of the second air pipe between every two adjacent support ribs is less than or equal to 70 mm. The air blower can suppress noise when being in an air volume mode, so that the use feeling of a user is improved, and the air blower is fast and convenient.
Description
Technical Field
The utility model relates to a hair-dryer and tuber pipe mechanism belongs to electric tool technical field.
Background
In daily life, a blower is a common tool, and is generally used for cleaning the ground in a garden or a street. With the development of the times, people have higher and higher demands on different functions of the hair dryer, so that the hair dryer has a wind speed mode for enhancing the speed of the air flow and an air volume mode for enhancing the air volume. When the blower is in the air volume mode, negative pressure is formed at the air outlet by air flow (the air flow rate is faster, the pressure is smaller) of air outlet of the air outlet, pressure difference exists between atmospheric pressure and the negative pressure, and the existence of the pressure difference enables the external air flow to enter the siphon pipe, so that air flow is supplemented, and the air volume is increased.
However, the pressure difference between the atmospheric pressure and the negative pressure also presses the uppermost outer wall of the siphon tube, and the uppermost outer wall of the siphon tube is deformed. Moreover, the negative pressure is not a fixed value, but is actually a variable value, so that the differential pressure is also a variable value, and the deformation of the siphon tube is also continuously changed, so that the siphon tube shakes and vibrates, and then noise is generated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hair-dryer and tuber pipe mechanism, it makes the hair-dryer can the noise suppression when being in amount of wind mode to improve the user and use the impression, swift convenient.
In order to achieve the above purpose, the utility model provides a following technical scheme: a hair dryer, comprising:
the air conditioner comprises a shell, wherein an air inlet is formed in the shell;
a motor disposed within the housing;
the fan is driven by the motor to rotate so that main air flow enters from the air inlet;
the air pipe mechanism is connected with the shell and is provided with an air outlet, and the air flow is blown out of the air outlet;
the air pipe mechanism comprises a first air pipe connected with the shell and a second air pipe connected with the first air pipe;
at least one position where the second air duct is connected with the first air duct, a gap is formed between the first air duct and the second air duct, so that air flow is supplemented through the gap;
the air outlet is arranged on the second air pipe; the second air pipe also comprises a support ring sleeved with the first air pipe and support ribs for connecting the support ring and the second air pipe, and make-up air flows into main air flows from the space between the support ribs;
the number of the supporting ribs is at least four, or,
the arc length of the second air pipe between every two adjacent support ribs is less than or equal to 70 mm.
Furthermore, six support ribs are arranged in the second air pipe, and the arc length of the second air pipe between every two adjacent support ribs is 45 mm.
Furthermore, at least four support ribs are uniformly distributed.
Further, the second air duct is movable along the axial direction of the first air duct to change the air speed or air volume of the blower.
Furthermore, the first air pipe has a first position which is clamped with the second air pipe so that the blower is in a wind speed mode, and a second position which is clamped with the second air pipe so that the blower is in a wind volume mode, the first position is arranged close to the shell so that the second air pipe is sleeved on the first air pipe, and the second position is arranged far away from the shell so that one side of the second air pipe is connected with the first air pipe.
Further, the second tuber pipe include with first tuber pipe be connected connecting portion and with the air-out portion that connecting portion are connected, connecting portion are close to the diameter of one side of first tuber pipe is greater than connecting portion are close to the diameter of air-out portion one side, the outer wall of connecting portion is followed connecting portion diminish gradually in order to be the arc form towards air-out portion.
Further, the ratio of the diameter of the air outlet of the second air pipe to the air outlet of the first air pipe is 1.2-1.8.
Furthermore, the hair drier also comprises a holding part for holding and a connecting rod for connecting the holding part and the shell.
The utility model also provides an air pipe mechanism which is used for being arranged on the hair drier and comprises a first air pipe and a second air pipe connected with the first air pipe,
at least one position where the second air duct is connected with the first air duct, a gap is formed between the first air duct and the second air duct, so that air flow can flow in through the gap;
the second air pipe comprises support rings which are used for being sleeved with the first air pipe, and support ribs which are used for connecting the support rings and the second air pipe, airflow flows in from among the support ribs, and the number of the support ribs is at least four;
or the arc length of the second air pipe between every two adjacent support ribs is less than or equal to 70 mm.
The utility model also provides a hair drier, include: the air conditioner comprises a shell, wherein an air inlet is formed in the shell;
a motor disposed within the housing;
the fan is driven by the motor to rotate so that main air flow enters from the air inlet;
the air pipe mechanism is connected with the shell and is provided with an air outlet, and the air flow is blown out of the air outlet;
the air pipe mechanism comprises a first air pipe connected with the shell and a second air pipe connected with the first air pipe;
at least one position where the second air duct is connected with the first air duct, a gap is formed between the first air duct and the second air duct, so that air flow is supplemented through the gap;
the air outlet is arranged on the second air pipe; the second air pipe also comprises a support ring sleeved with the first air pipe and support ribs for connecting the support ring and the second air pipe, and make-up air flows into main air flows from the space between the support ribs;
the second air pipe is also provided with a flange formed by outwards turning over the outer wall of the air inlet side.
The beneficial effects of the utility model reside in that: through being provided with four piece at least brace rods, four piece at least brace rods are used for connecting support ring and second tuber pipe to when making the hair-dryer be in the amount of wind mode, because the supporting role of brace rod makes the outer wall of second tuber pipe reduce shake, vibrations under the effect of inside and outside pressure differential, reduce the deformation of second tuber pipe, reduce or prevent the production of noise, in order to improve user experience, convenient and fast.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of the blower of the present invention in the air volume mode.
Fig. 2 is a schematic structural view of the blower of the present invention in a wind speed mode.
Fig. 3 is a schematic cross-sectional view of fig. 1.
Fig. 4 is a schematic view of the blower according to the present invention with the first and second air ducts not installed.
Fig. 5 is a schematic structural diagram of the second air duct of the present invention.
Fig. 6 is a side view of fig. 5.
Fig. 7 is a sectional view of the air duct mechanism of the present invention.
Fig. 8 is a schematic structural view of another second duct according to the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" 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 "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 invention can be understood in specific cases to those skilled in the art. Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 1 and 3, a blower 100 according to a preferred embodiment of the present invention includes a housing 1 having an air inlet, a motor 2 disposed in the housing 1, a fan 3 driven by the motor 2 to rotate to stir air flow, and an air duct mechanism 4 connected to the housing 1, wherein the housing 1 has the air inlet 11, the air duct mechanism 4 has an air outlet 43, and the air flow enters from the air inlet 11 and flows out from the air outlet 43 under the action of the fan 3, thereby forming a complete air duct. In the present embodiment, the air inlet 11 is disposed at the left side of the housing 1 and the air inlet 11 and the air outlet 43 are located on the same horizontal line, so that the wind speed is not affected. Indeed, in other embodiments, the air inlet 11 and the air outlet 43 may not be located on the same horizontal line, and are not limited herein, depending on the actual situation. However, when the air inlet 11 and the air outlet 43 are not located on the same horizontal line, the speed of the air flow itself is affected.
In order to stabilize the air flow generated in the housing 1 and to allow better operation of the motor 2, the motor 2 is fixedly arranged in the housing 1 by means of a bracket. The motor 2 has an output shaft, the fan 3 is disposed in the housing 1 and connected to the output shaft, and the motor 2 rotates to drive the output shaft to rotate, so as to drive the fan 3 to rotate. The motor 2 and the fan 3 are arranged close to the air inlet 11, and the purpose of the arrangement is as follows: the air inlet 11 is arranged close to the shell body 1, so that air flow is easy to generate in the shell body 1, the speed of the air flow is high, and the motor 2 does not need to consume excessive power. Indeed, in other embodiments, the motor 2 and the fan 3 may be disposed at other positions in the housing 1, which are not specifically limited herein, depending on the actual situation.
Referring to fig. 1, fig. 4 and fig. 5, the air duct mechanism 4 includes a first air duct 41 connected to the housing 1 and a second air duct 42 connected to the first air duct 41, the first air duct 41 and the second air duct 42 are located on the same horizontal line, wherein the first air duct 41 and the second air duct 42 both have an air outlet 43. At least one position where the second air duct 42 is connected to the first air duct 41, a gap is formed between the first air duct 41 and the second air duct 42, so that the air flow is supplemented into the second air duct 42 through the gap, and the air flow (i.e., the air volume) in the second air duct 42 is increased. In this embodiment, the second duct 42 is movable along the axial direction of the first duct 41 to change the wind speed or wind volume of the blower 100, so that the blower 100 has a wind volume increasing mode and a wind speed increasing mode. The ratio of the diameter of the air outlet of the second air duct 42 to the air outlet of the first air duct 41 is 1.2-1.8, so that the air flow supplemented to the second air duct 42 can be ensured to have enough blowing area to blow out, and the effect of increasing the air volume is achieved. The first air duct 41 is provided with a first position a and a second position B which are respectively fixed to the second air duct 42 in a clamping manner, when the hair dryer 100 is in the air speed mode, the second air duct 42 is located at the first position a, the second air duct 42 is sleeved on the first air duct 41 at the moment, the air outlet direction is the front direction (the direction indicated by the arrow a), and the air outlet 43 of the second air duct 42 is located behind the first air duct 41 at the moment, so that the air flow path is reduced, and the purpose of increasing the air speed is achieved. When the blower 100 is in the air volume mode, the second duct 42 is in the second position B, and the motor 2 drives the fan 3 to rotate to generate the main air flow, which flows from the first duct 41 into the second duct 42. At this time, a gap exists between the second air duct 42 and the first air duct 41, and the bernoulli principle shows that: for an ideal fluid which has negligible viscosity and cannot be compressed, when the fluid flows at the same height, the flow velocity of the fluid is larger, and the pressure intensity is smaller, so that negative pressure is formed when the airflow in the first air pipe 41 is directly conveyed into the second air pipe 42, and because the flow velocity of the main airflow is fast and the pressure intensity is small, a pressure difference is generated between the atmospheric pressure intensity and the negative pressure intensity, further, the supplementary airflow is pressed into the second air pipe 41 through a gap by the atmospheric pressure intensity, the blown air volume is increased, and the air volume is increased.
Referring to fig. 5 and 6, however, since the negative pressure in the second air duct 42 is a variable value, the pressure difference between the negative pressure and the atmospheric pressure is also a variable value, the outer wall of the second air duct 42 close to the first air duct 41 is deformed to shake or vibrate, thereby generating noise. In order to reduce noise and suppress noise, in this embodiment, the second air duct further includes a support ring 421 sleeved with the first air duct, and a support rib 423 connecting the support ring 421 and the second air duct, and the supplementary air flows into and converges with the main air flow from between the support ribs 423. One end of the support rib 423 is connected to the support ring 421, and the other end of the support rib 423 is connected to the side of the second air duct 42. Wherein, the number of the support ribs 423 is at least four, the at least four support ribs 423 are uniformly arranged, and the distance between each support rib 423 and the support ring 421 is equal, so as to reduce the amount of the supplementary air flow between every two adjacent support ribs 423 to be equal, and further achieve the effect of reducing noise. The arc length of the second air duct 42 between every two adjacent support ribs 423 is less than or equal to 70mm, and the arc length of the second air duct 42 between every two adjacent support ribs 423 is small in jitter within the range. In this embodiment, in order to achieve the effects of noise suppression and noise reduction without affecting the air output, six support ribs 423 are provided in the second air duct 42, and the arc length of the second air duct 42 between every two adjacent support ribs 423 is 45 mm. Indeed, in other embodiments, the number of the support ribs 423 disposed in the second air duct 42 is other, and correspondingly, the arc length of the second air duct 42 between every two adjacent support ribs 423 is also other, which is determined according to the diameter of the second air duct 42, and is not specifically limited herein, and is determined according to the actual situation. By adopting the scheme, the overall noise reduction of the hair drier can reach 2-5 dB.
In addition, as shown in fig. 8, a flange 7 may be disposed on the air intake side of the second air duct 42, the flange 7 is formed by folding the outer wall of the second air duct 42 outwards, and the flange 7 enhances the strength of the outer wall of the second air duct 42, thereby enhancing the difficulty of deformation thereof, and further reducing noise.
As mentioned above with reference to fig. 1, fig. 2 and fig. 4, the second air duct 42 can move along the axial length of the first air duct 41 by moving the support ring 421 on the first air duct 41. When the blower 100 is required to be in the air speed mode, the support ring 421 drives the second air pipe 42 to move to the first position a; when the blower 100 is required to be in the air volume mode, the support ring 421 drives the second air duct 42 to move to the second position B, and at this time, in order to prevent the support ring 421 from affecting the air volume of the first air duct 41 and further affecting the air volume of the second air duct 42, the foremost end of the support ring 421 is located behind the air outlet 43 of the first air duct 41, so as to reduce the shielding of the support ring 421 on the air flow and increase the air intake.
Please refer to fig. 5, the second air duct 42 further includes a connecting portion 422 connected to the first air duct and an air outlet portion 424 connected to the connecting portion 422, a diameter of one side of the connecting portion 422 close to the first air duct is larger than a diameter of one side of the connecting portion 422 close to the air outlet portion 424, and the outside of the connecting portion 422 gradually decreases toward the air outlet portion 424 along the connecting portion 422 to be arc-shaped, so as to set the objective: the side of the connection portion 422 with the larger diameter is used to enable more supplementary air flow to enter the second air duct 42 under the action of the pressure difference so as to increase the air volume as much as possible, and the side of the connection portion 422 with the smaller diameter is used to enable the air volume to be increased and simultaneously minimize the influence on the air speed. Meanwhile, the outer side of the connecting part 422 is arc-shaped, so that the connecting part 422 can be further prevented from deforming, and the purposes of noise reduction and noise suppression are achieved. The connecting part 422 and the air outlet part 424 are connected through ultrasonic welding, so that a screw structure is avoided, the connecting part can have a smooth appearance, and extra weight is avoided. Of course, the connection portion 422 and the air outlet portion 424 may be integrally formed.
Referring to fig. 7, in order to reduce noise generated by the user during use of the hair dryer 100 and to improve comfort, the hair dryer 100 further includes a noise reduction mechanism 414 for reducing noise, and the noise reduction mechanism 414 is connected to the first air duct 41. In this case, the first air duct 41 includes an inner tube 413 and an outer tube 412 sleeved outside the inner tube 413, the noise reduction mechanism 414 is disposed between the inner tube 413 and the outer tube 412, the noise reduction mechanism 414 may be noise reduction cotton, a sound insulation board, or the like, and in order not to increase the weight of the whole device of the blower 100, in this embodiment, the noise reduction mechanism 414 is noise reduction cotton. Indeed, in other embodiments, the noise reduction mechanism may be other in order to achieve the same purpose, and is not specifically limited herein, depending on the actual situation.
Referring to fig. 1, 2 and 4, in order to enable the second air duct 42 to be fastened and fixed on the first air duct 41 so as to enable the hair dryer 100 to be in the wind speed mode or the wind volume mode, the first air duct 41 is further provided with a protrusion 411 fastened and fixed with the second air duct 42, and the protrusion 411 includes a first fastening member 4111 disposed at the first position a and a second fastening member 4112 disposed at the second position B. The first latching member 4111 tilts downward from front to back, and when the second air duct 42 is located at the first position a, the second air duct 42 gradually moves along the slope of the first latching member 4111 until being completely engaged with the first latching member 4111. When it is required to move the second air duct 42 to the second position B, an external force is applied to drive the second air duct 42 to move towards the second latching member 4112, so that the second air duct 42 is gradually separated from the first latching member 4111. The second latching member 4112 is inclined upward from front to back, i.e., opposite to the first latching member 4111. When the second air duct 42 is located at the second position B, the second air duct 42 gradually moves along the slope of the second latching member 4112 until being completely engaged with the second latching member 4112. Likewise, when it is desired to move the second air duct 42 from the second position B to the first position a, an external force is applied to drive the second air duct 42 to disengage from the second latching member 4112. In this embodiment, in order to make the second air duct 42 be better fastened and fixed at the first position a or the second position B, the first latching member 4111 is disposed along the circumferential direction of the first air duct 41, and the second latching member 4112 is disposed along the circumferential direction of the first air duct 41. Indeed, in other embodiments, the first latching member 4111 and the second latching member 4112 may be in other shapes, and the arrangement direction thereof may be changed accordingly, as long as the above purpose is achieved, which is not specifically limited herein, depending on the actual situation.
Referring to fig. 1, the blower 100 further includes a holding portion 5 connected to the casing 1, in this embodiment, the holding portion 5 is connected to the casing 1 through a connecting rod 6, so that a distance exists between the holding portion 5 and the air inlet 11. When the user uses the hair dryer 100 for operation, the air inlet 11 is not blocked by the body of the user when the user holds the holding portion 5 because the holding portion 5 and the air inlet 11 have a distance therebetween, thereby reducing the air flow. Meanwhile, the connecting rod 6 is arranged, so that the whole air duct mechanism 4 is shorter, the whole weight of the hair drier 100 is reduced, and the purpose of reducing wind resistance is achieved. The holding part 5 is bent upwards in the height direction of the hair dryer 100, so that the holding part is convenient for a user to hold, and meanwhile, the force required by the user when the user uses the hair dryer 100 for operation is indirectly reduced, and the effect of saving physical strength is achieved.
The hair dryer 100 also includes a power mechanism (not shown) for providing power to the drive mechanism 2, the power mechanism being a battery pack or a power cord. In this embodiment, the power mechanism is a battery pack, which is not limited by a use scene and a use distance, and is fast and convenient. At this time, the blower 100 is provided with a connection terminal to be butted against the battery pack. Indeed, in other embodiments, the power mechanism may also be a power line, which is not limited by the battery capacity, and is not specifically limited herein according to the actual situation.
In summary, the following steps: through being provided with four piece at least spinal branchs 423, four piece at least spinal branchs 423 are used for connecting support ring 421 and second tuber pipe 42 to when making hair-dryer 100 be in the amount of wind mode, because the supporting role of spinal branchs 423 makes the outer wall of second tuber pipe 42 reduce shake, vibrations under inside and outside pressure differential's effect, reduces the deformation of second tuber pipe 42, reduces or prevent the production of noise, in order to improve user experience, convenient and fast.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A hair dryer, comprising:
the air conditioner comprises a shell, wherein an air inlet is formed in the shell;
a motor disposed within the housing;
the fan is driven by the motor to rotate so that main air flow enters from the air inlet;
the air pipe mechanism is connected with the shell and is provided with an air outlet, and the air flow is blown out of the air outlet;
the air pipe mechanism comprises a first air pipe connected with the shell and a second air pipe connected with the first air pipe;
at least one position where the second air duct is connected with the first air duct, a gap is formed between the first air duct and the second air duct, so that air flow is supplemented through the gap;
the air outlet is arranged on the second air pipe; the second air pipe also comprises a support ring sleeved with the first air pipe and support ribs for connecting the support ring and the second air pipe, and make-up air flows into main air flows from the space between the support ribs;
the number of the supporting ribs is at least four, or,
the arc length of the second air pipe between every two adjacent support ribs is less than or equal to 70 mm.
2. The hair dryer of claim 1, wherein six support ribs are provided in said second air duct, and an arc length of said second air duct between every two adjacent support ribs is 45 mm.
3. The hair dryer of claim 1, wherein at least four of said support ribs are uniformly arranged.
4. The blower of claim 1, wherein said second duct is movable in an axial direction of said first duct to vary a speed or volume of air of said blower.
5. The blower of claim 4, wherein said first air duct has a first position for engaging said second air duct to place said blower in a wind speed mode and a second position for engaging said second air duct to place said blower in a wind volume mode, said first position being disposed proximate said housing to place said second air duct over said first air duct, said second position being disposed away from said housing to place a side of said second air duct in communication with said first air duct.
6. The hair dryer of claim 1, wherein the second air duct includes a connecting portion connected to the first air duct and an air outlet portion connected to the connecting portion, a diameter of a side of the connecting portion adjacent to the first air duct is larger than a diameter of a side of the connecting portion adjacent to the air outlet portion, and an outer wall of the connecting portion is tapered toward the air outlet portion along the connecting portion to have an arc shape.
7. The hair dryer of claim 1, wherein the ratio of the diameter of the outlet opening of said second air duct to the outlet opening of said first air duct is in the range of 1.2-1.8.
8. The hair dryer of claim 1, further comprising a grip for gripping and a connecting rod for connecting said grip and said housing.
9. An air pipe mechanism is used for being arranged on a blower and comprises a first air pipe and a second air pipe connected with the first air pipe,
at least one position where the second air duct is connected with the first air duct, a gap is formed between the first air duct and the second air duct, so that air flow can flow in through the gap;
the air conditioner is characterized in that the second air pipe comprises a support ring sleeved with the first air pipe, support ribs for connecting the support ring and the second air pipe, air flows into the support ribs, and the number of the support ribs is at least four;
or the arc length of the second air pipe between every two adjacent support ribs is less than or equal to 70 mm.
10. A hair dryer, comprising: the air conditioner comprises a shell, wherein an air inlet is formed in the shell;
a motor disposed within the housing;
the fan is driven by the motor to rotate so that main air flow enters from the air inlet;
the air pipe mechanism is connected with the shell and is provided with an air outlet, and the air flow is blown out of the air outlet;
the air pipe mechanism comprises a first air pipe connected with the shell and a second air pipe connected with the first air pipe;
at least one position where the second air duct is connected with the first air duct, a gap is formed between the first air duct and the second air duct, so that air flow is supplemented through the gap;
it is characterized in that the preparation method is characterized in that,
the air outlet is arranged on the second air pipe; the second air pipe also comprises a support ring sleeved with the first air pipe and support ribs for connecting the support ring and the second air pipe, and make-up air flows into main air flows from the space between the support ribs;
the second air pipe is also provided with a flange formed by outwards turning over the outer wall of the air inlet side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020933640.9U CN212506041U (en) | 2020-05-28 | 2020-05-28 | Blower and air pipe mechanism |
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| CN202020933640.9U CN212506041U (en) | 2020-05-28 | 2020-05-28 | Blower and air pipe mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113737692A (en) * | 2020-05-28 | 2021-12-03 | 苏州宝时得电动工具有限公司 | Blower and air pipe mechanism |
| CN119844398A (en) * | 2024-12-19 | 2025-04-18 | 山东能率机械科技有限公司 | Gardens knapsack formula hair-dryer |
-
2020
- 2020-05-28 CN CN202020933640.9U patent/CN212506041U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113737692A (en) * | 2020-05-28 | 2021-12-03 | 苏州宝时得电动工具有限公司 | Blower and air pipe mechanism |
| CN119844398A (en) * | 2024-12-19 | 2025-04-18 | 山东能率机械科技有限公司 | Gardens knapsack formula hair-dryer |
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