Single-shaft double-speed output hair trimming tool with air suction function
By designing a single -axis and double -speed output structure with wind -absorbing function in the hair pruning tool, the problem that the hair cannot be collected in real time during the shaving process is solved, and the effect of safe and effective hair pruning and wind absorption is achieved. Safety and energy utilization efficiency.
Patent Information
- Application Number
- CN202421219919.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-30
AI Technical Summary
Existing shaving tools cannot collect cut hair in real time during shaving, causing hair to scatter or stick to the skin, especially in the eyes or nostrils, which can easily cause health risks.
A single -axis and double -speed hair pruning tool with a single -axis and double -speed output with a wind -absorbing function is designed. By setting up coaxial transmission parts outside the axis, when the knife and a static knife are cut with cutting hair, the transmission part is synchronized with low -speed moving energy to make the impeller. Rotate the piece to form a wind -absorbing effect, and collect the cut hair.
Effectively prevent the hair from being inhaled into the lungs or sticking to the skin, improves the safety of use, and uses the output power of the drive mechanism to the greatest extent to achieve the dual functions of the hair pruning and wind absorption effect, save production costs and reduce the internal space of tools in the internal space of tools. Occupy.
Smart Images
Figure CN222405826U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a hair trimming tool, in particular to a single-shaft double-speed output hair trimming tool with a suction function. Background Art
[0002] Body hair is born with everyone. The body hair on different parts of the human body protects different organs of the human body. For example, hair, eyebrows, eyelashes, nose hair, etc. Hair is used to protect the human skull, while eyebrows are used to prevent sweat from sliding into the eyes, and eyelashes play an important role in protecting the eyeball and cornea from dust, sweat or other foreign objects. Since the body hair on different parts of the human body will continue to grow over time, the body hair on different parts will also have different growth rates. In order to maintain the external image and the cleanliness of the human body, tools for shaving human body hair have also appeared and are being continuously improved to make these shaving tools meet people's usage habits and needs.
[0003] There are many types of existing shaving tools, and they are mainly classified according to the hair on different parts of the human body, such as hair clippers for trimming hair, razors for shaving beards, nose hair knives for trimming hair in the nostrils, or eyebrow trimmers for trimming eyebrows, etc. Although existing shaving tools can shave hair on different parts of the human body, they can only cut off the hair but cannot collect the cut hair in real time during the shaving process, causing the shaved hair to be scattered or stuck on the skin in a disorderly manner, especially in special parts such as the eyes or nostrils. There is a concern that the disorderly fallen hair will enter the eyes or be inhaled into the lungs, affecting human health. Utility Model Content
[0004] In order to solve the technical problems that the existing shaving tools only have the function of cutting hair, but cannot collect the hair in a centralized manner while cutting hair, which easily causes the hair to be inhaled into the lungs or stick to the skin, affecting human health or overall image, the present invention provides a single-axis dual-speed output hair trimming tool with a suction function, which can not only drive the cutter head assembly through a single-axis motor to trim hair, but also synchronously output low-speed kinetic energy to form a suction effect to collect the cut hair in a centralized manner, thereby preventing the broken hair or broken hair from being scattered disorderly or sticking to the skin, preventing the broken hair or broken hair from being inhaled into the human body, and ensuring the safety of use.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is a single-shaft dual-speed output hair trimming tool with a suction function, comprising a static knife, a movable knife and a driving mechanism, the driving mechanism having a rotating shaft and being transmission-connected to the movable knife, the rotating shaft can drive the movable knife and the static knife to cooperate in cutting hair at a first rotational speed; a transmission member with a coaxial clearance fit is provided outside the rotating shaft, the transmission member is linkage-connected to the rotating shaft, an impeller blade is provided on the transmission member, and when the rotating shaft drives the movable knife at a first rotational speed, the transmission member synchronously drives the impeller blade to rotate at a second rotational speed to form a suction effect, and the second rotational speed of the transmission member is lower than the first rotational speed of the rotating shaft.
[0006] Preferably, the second rotational speed direction of the transmission member is the same as or opposite to the first rotational speed direction of the rotating shaft.
[0007] Preferably, a spline is provided on the rotating shaft and a main gear is fixed at the spline, and the main gear rotates synchronously with the first speed of the rotating shaft; the transmission member is connected to the main gear and outputs kinetic energy at a second speed lower than the first speed of the rotating shaft to drive the impeller blades to rotate to form a suction effect.
[0008] Preferably, the transmission member includes a transmission plate, a sub-gear and a gear sleeve. The gear sleeve is in the shape of a hollow ring and is provided with a plurality of transmission teeth on its inner circumferential side wall. The transmission plate is provided with at least one and is sleeved outside the rotating shaft and is clearance-matched with the rotating shaft. The sub-gear is mounted on the transmission plate and is respectively meshed with the transmission teeth and the main gear. One end of the gear sleeve is connected and fixed to the outer casing of the driving mechanism, and the other end rotatably confines the transmission plate in the gear sleeve so that one end face of the transmission plate is placed outside the gear sleeve. A plurality of impeller blades are provided and are fixed on the transmission plate in an annular array.
[0009] Preferably, the transmission plate includes a first reduction plate, a second reduction plate and a third reduction plate which are stacked and sleeved along the rotating shaft and matched with the rotating shaft clearance; the first reduction plate can rotatably match with the gear sleeve and its end face is placed outside the gear sleeve, secondary gears are respectively provided on the upper end faces of the second reduction plate and the third reduction plate, and a plurality of gear shafts distributed in a planetary manner are respectively provided on the lower end face of each reduction plate, and a sub-gear is respectively installed outside each gear shaft; the sub-gear installed on the lower end face of the first reduction plate meshes with the secondary gear on the upper end face of the second reduction plate and the transmission teeth on the gear sleeve, the sub-gear installed on the lower end face of the second reduction plate meshes with the secondary gear on the third reduction plate and the transmission teeth on the gear sleeve, and the sub-gear installed on the lower end face of the third reduction plate meshes with the main gear outside the rotating shaft and the transmission teeth on the gear sleeve, so that the second speed of the first reduction plate is lower than the first speed of the rotating shaft, and the first reduction plate rotates in opposite directions to the rotating shaft, and a plurality of impeller blades are fixed on the first reduction plate in an annular array and are placed outside the gear sleeve.
[0010] Preferably, the gear sleeve is detachably connected and fixed to the base, and the base is placed on an end surface of a rotating shaft of the driving mechanism and is fixedly connected to the driving mechanism.
[0011] Preferably, two hook rings and positioning holes are relatively provided on the outer peripheral side wall of the gear sleeve, and corresponding positions of the base are provided with barbed pins and positioning inserts, and each pin and positioning insert can be respectively inserted into the hook ring and the positioning hole to make the gear sleeve and the base detachably connected and fixed.
[0012] Preferably, the first reduction plate includes a circular base, on which are provided a limit platform and a blade seat which are coaxially stacked and have successively smaller inner diameters; the impeller blades are provided with four pieces and are inclined and are fixedly connected to the blade seat in a circular array as a whole; a limit hole is provided at the port of the gear sleeve, the inner diameter of the limit hole is smaller than the outer diameter of the circular base but larger than the outer diameter of the limit platform, the limit platform is placed in the limit hole and its end face is placed outside the gear sleeve, so that the blade seat and the impeller blade are respectively located above the gear sleeve.
[0013] The beneficial effect of the utility model is that by arranging a transmission member coaxially mounted outside the rotating shaft, when the rotating shaft drives the moving knife to cooperate with the static knife to cut hair at a first speed, the transmission member can synchronously follow the rotating shaft to rotate synchronously at a second speed, so that the impeller blades arranged on the transmission member rotate and form a suction effect to collect the cut broken hair, thereby preventing the hair from being inhaled into the lungs or sticking to the skin to affect human health or overall image, etc. Secondly, the output power of the driving mechanism can be used to the maximum extent to achieve the output of two different speeds, and the suction effect can be achieved while hair trimming, thereby improving energy utilization efficiency, optimizing the transmission structure, and no different driving mechanisms need to be set to drive the rotation of the moving knife and the impeller blades respectively, saving production costs and reducing the internal space occupied by the hair trimming tool. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 A simplified assembly stereogram of a single-axis dual-speed output hair trimming tool with a suction function according to an embodiment of the utility model
[0015] Figure 2 The assembly stereogram of the transmission member and the driving mechanism in the embodiment of the utility model is shown in FIG.
[0016] Figure 3 This is a partial three-dimensional cross-sectional view of the assembly of the transmission member and the drive mechanism in the embodiment of the utility model
[0017] Figure 4 A three-dimensional structural diagram of the driving mechanism in the embodiment of the utility model
[0018] Figure 5 This is a front view of the three-dimensional structure of the first deceleration plate in the embodiment of the utility model
[0019] Figure 6 This is a bottom view of the first deceleration plate in the embodiment of the utility model.
[0020] Figure 7This is a front view of the third embodiment of the utility model.
[0021] Figure 8 This is a bottom view of the second deceleration plate in the embodiment of the utility model.
[0022] Fig. 9 This is a front view of the three-dimensional structure of the gear sleeve in the embodiment of the utility model
[0023] Fig.10 This is a bottom view of the gear sleeve in the embodiment of the utility model.
[0024] Fig.11 A three-dimensional structural diagram of the base in the embodiment of the utility model
[0025] Fig.12 This is a three-dimensional structural diagram of the assembly of the first embodiment of the single-axis dual-speed output hair trimming tool with suction function according to the utility model.
[0026] Fig.13 This is a three-dimensional structural diagram of the second embodiment of the single-axis dual-speed output hair trimming tool with suction function according to the utility model. DETAILED DESCRIPTION
[0027] The following is combined with Figures 1 to 13 The implementation mode of the utility model is further described as follows:
[0028] The utility model is a single-shaft dual-speed output hair trimming tool with a suction function, comprising a stationary blade 1, a movable blade 2 and a driving mechanism 3, wherein the driving mechanism 3 has a rotating shaft 31 and is transmission-connected with the movable blade 2, and the rotating shaft 31 can drive the movable blade 2 to cooperate with the stationary blade 1 to cut hair at a first rotation speed; a transmission member 4 with a coaxial clearance fit is arranged outside the rotating shaft 31, the transmission member 4 is linked to the rotating shaft 31, an impeller blade 5 is arranged on the transmission member 4, and when the rotating shaft 31 drives the movable blade 2 at a first rotation speed, the transmission member 4 synchronously drives the impeller blade 5 to rotate at a second rotation speed to form a suction effect, and the second rotation speed of the transmission member 4 is lower than the first rotation speed of the rotating shaft 31. By arranging a transmission member 4 coaxially mounted outside the rotating shaft 31, when the rotating shaft 31 drives the movable blade 2 to cooperate with the static blade 1 to cut hair at a first speed, the transmission member 4 can synchronously follow the rotating shaft 31 to rotate synchronously at a second speed, so that the impeller blade 5 arranged on the transmission member 4 rotates and forms a suction effect to collect the cut broken hair, thereby preventing the hair from being inhaled into the lungs or sticking to the skin to affect human health or overall image. Secondly, the output power of the driving mechanism 3 can be used to the maximum extent to achieve the output of two different speeds, and while completing hair trimming, a suction effect can also be formed, thereby improving energy utilization efficiency and optimizing the transmission structure. There is no need to set different driving mechanisms 3 to drive the rotating work of the movable blade 2 and the impeller blade 5 respectively, saving production costs and reducing the internal space occupied by the hair trimming tool.
[0029] The second speed of the transmission member 4 is limited to be less than the first speed of the rotating shaft 31 for two main reasons: one is to prevent the disorderly splashing of broken hairs, and the other is to reduce the working noise. In actual use, the driving mechanism 3 is a motor. The rated speed of the motors currently used in hair trimming tools is basically above 3000 rpm, and can reach more than 10000 rpm at most. If the second speed of the transmission member 4 is set to be the same as the first speed of the rotating shaft 31, the second speed of the transmission member 4 is relatively too fast, which not only increases the working noise of the impeller 5 when sucking air, but also causes the broken hairs to splash disorderly due to the excessive wind force caused by the too fast rotation of the impeller 5. Therefore, it is a preferred embodiment to set the second speed of the transmission member 4 to be less than the first speed of the rotating shaft 31.
[0030] It is particularly noted that the second speed of the transmission member 4 is formed by deceleration based on the first speed of the rotating shaft 31. The deceleration can be a single-stage deceleration or a multi-stage deceleration, which can be determined according to the actual suction demand. Therefore, the second speed is not a specific value, but is only used to limit the rotation speed of the transmission member 4 and the impeller 5 to be lower than the rotating shaft 31 of the driving mechanism 3. The second speed of the transmission member 4 is rotated in the same direction or in the opposite direction to the first speed of the rotating shaft 31, preferably in the opposite direction. The transmission member 4 and the rotating shaft 31 are set to move in opposite directions, and the vibration generated by the rotation between the transmission member 4 and the rotating shaft 31 can be used to offset each other, which can reduce the overall vibration of the hair trimming tool during operation to the greatest extent and improve the comfort of use of the hair trimming tool.
[0031] Since the transmission member 4 and the rotating shaft 31 are coaxially arranged with a gap, in order to facilitate the transmission connection between the transmission member 4 and the rotating shaft 31, a spline 32 is provided on the rotating shaft 31 and a main gear 6 is fixed at the spline 32. The main gear 6 rotates synchronously with the first speed of the rotating shaft 31; the transmission member 4 is in transmission connection with the main gear 6 and outputs kinetic energy at a second speed lower than the first speed of the rotating shaft 31 to drive the impeller blade 5 to rotate to form a suction effect. By installing the main gear 6 on the rotating shaft 31 and meshing the transmission member 4 with the main gear 6, when the rotating shaft 31 rotates at the first speed, the teeth of the main gear 6 can drive the transmission member 4 to drive the impeller blade 5 to rotate at the second speed and form a suction effect; at the same time, the first speed of the rotating shaft 31 can be decelerated through the teeth of the main gear 6, so that the second speed of the transmission member 4 is lower than the first speed of the rotating shaft 31.
[0032] In order to realize that the single-axis motor outputs two different speeds to respectively drive the movable blade 2 and the impeller 5 to rotate in opposite directions to achieve hair trimming and form a suction effect, the transmission member 4 includes a transmission disc 41, a sub-gear 42 and a gear sleeve 43. The gear sleeve 43 is a hollow ring shape and is provided with a plurality of transmission teeth 44 on its inner peripheral side wall. The transmission disc 41 is provided with at least one and is sleeved outside the rotating shaft 31 and is clearance-matched with the rotating shaft 31. With clearance-matching, the transmission disc 41 can rotate independently relative to the rotating shaft 31 to drive the impeller 5 to rotate in the opposite direction along the rotating shaft 31. The rotation of the transmission disc 41 depends on the sub-gear 42 installed on the transmission disc 41. Since the sub-gear 42 is meshed with the main gear 6 and the transmission teeth 44 in the gear sleeve 43 respectively, when the main gear 6 drives the sub-gear 42 to rotate, the sub-gear 42 will make a circular motion along the transmission teeth 44 on the inner side wall of the gear sleeve 43, so that the transmission disc 41 can rotate in the opposite direction relative to the rotating shaft 31, and the impeller 5 installed on the transmission disc 41 and the rotating shaft 31 can synchronously move in the opposite direction. Of course, the gear sleeve 43 and the transmission teeth 44 may not be provided, and the sub-gear 42 and the transmission disc 41 only need to be set to be fixedly connected and non-rotatable, and the main gear 6 is used to directly transfer the kinetic energy to the sub-gear 42, so that the transmission disc 41 can also be independently rotated in the opposite direction relative to the rotating shaft 31 to form a dual-speed output. However, if the gear sleeve 43 and the transmission teeth 44 are not provided, the "reduction ratio" between the main gear 6 and the sub-gear 42 is small, and the transmission disc 41 rotates too fast, which will cause the wind force generated by the rotation of the impeller blade 5 to be large, causing the broken hair to splash disorderly; secondly, the running stability is poor, and the transmission disc 41 is prone to axial up and down movement and tooth jumping between the main gear 6 and the sub-gear 42. Therefore, in this embodiment, for the sake of running stability and reduction ratio, the gear sleeve 43 is added and the transmission teeth 44 are set on the inner wall of the gear sleeve 43, and the number of transmission teeth 44 is used to maximize the reduction ratio, slowing down the second speed of the transmission disc 41 to meet the wind force requirement generated by the rotation of the impeller blade 5.
[0033] In order to ensure the rotation stability of the transmission disk 41 to the greatest extent, one end of the gear sleeve 43 is connected and fixed to the outer shell of the driving mechanism 3. Since the sub-gear 42 installed on the transmission disk 41 makes a circular motion along the transmission teeth 44 in the gear sleeve 43 to drive the transmission disk 41 to rotate in the opposite direction along the rotating shaft 31, the stability of the gear sleeve 43 is directly related to the running stability of the transmission disk 41. In view of this, a detachable fixed connection is formed between one end of the gear sleeve 43 and the outer shell of the driving mechanism 3 (i.e., the motor), which can not only ensure the rotation stability of the transmission disk 41 and the hair trimming performance; at the same time, it can also facilitate the production and assembly of the gear sleeve 43, thereby improving the production and assembly efficiency. The other end of the gear sleeve 43 is used to rotatably limit the transmission disc 41 in the gear sleeve 43, so that one end face of the transmission disc 41 is placed outside the gear sleeve 43 for connection and fixation with the impeller 5. When the secondary gear 42 drives the transmission disc 41 to rotate, the end of the gear sleeve 43 can play a limiting role to prevent the transmission disc 41 from axial movement, ensure that the secondary gear 42 and the main gear 6 and the transmission gear 44 always maintain a meshing state, avoid tooth jumping between gears, and ensure the hair trimming performance of the hair trimmer. Secondly, it can also facilitate the impeller 5 to rotate synchronously with the transmission disc 41 to form a suction effect to collect broken hair in a centralized manner.
[0034] Since the rated speed of the motors used in existing hair trimming tools is at least 3000 rpm, and the speed of the impeller 5 cannot be too fast, the second speed of the transmission disc 41 must be decelerated to adapt to the impeller 5 to achieve the suction function while avoiding the disorderly splashing of broken hair caused by excessive wind force. The transmission disc 41 includes a first reduction disc 411, a second reduction disc 412 and a third reduction disc 413 stacked and sleeved along the rotating shaft 31 and gap-matched with the rotating shaft 31; the first reduction disc 411 can be rotatably matched with the gear sleeve 43 and its end face is placed outside the gear sleeve 43, and the second reduction disc 412 and the third reduction disc 413 are respectively provided with secondary gears 7 on the upper end faces, and a plurality of gear shafts 414 distributed in a planetary manner are respectively provided on the lower end faces of each reduction disc, and each gear Sub gears 42 are respectively installed outside the shaft 414; the sub gears 42 installed on the lower end surface of the first reduction plate 411 are respectively meshed with the secondary gear 7 on the upper end surface of the second reduction plate 412 and the transmission teeth 44 on the gear sleeve 43, the sub gear 42 installed on the lower end surface of the second reduction plate 412 is meshed with the secondary gear 7 of the third reduction plate 413 and the transmission teeth 44 on the gear sleeve 43, and the sub gear 42 installed on the lower end surface of the third reduction plate 413 is meshed with the main gear 6 outside the rotating shaft 31 and the transmission teeth 44 on the gear sleeve 43, so that the second speed of the first reduction plate 411 is lower than the first speed of the rotating shaft 31, and the first reduction plate 411 and the rotating shaft 31 rotate in opposite directions, and a plurality of impeller blades 5 are fixed on the first reduction plate 411 in an annular array and placed outside the gear sleeve 43. By setting the transmission disc 41 to be a first deceleration disc 411, a second deceleration disc 412 and a third deceleration disc 413 of three-stage deceleration, the first speed of the rotating shaft 31 can be decelerated to a suitable second speed to drive the first deceleration disc 411 to rotate without occupying a large amount of space, so that the impeller blades 5 installed on the first deceleration disc 411 rotate at a low speed to adapt to the centralized collection of broken hairs, and avoid the disorderly scattering of broken hairs or disorderly splashing due to excessive wind force. Of course, it can also be set as a two-stage deceleration structure, such as only setting the first deceleration disc 411 and the second deceleration disc 412, or setting more deceleration discs to achieve more stages of deceleration, which can be determined according to actual needs, and this embodiment does not make further restrictions.
[0035] Since the transmission teeth 44 are arranged on the inner side wall of the gear sleeve 43, in order to facilitate the production, processing and assembly of the transmission teeth 44, the gear sleeve 43 is detachably connected and fixed to the base 8, and the base 8 is placed on the end surface of one end of the rotating shaft 31 of the driving mechanism 3 and is fixedly connected to the housing of the driving mechanism 3. By detachably connecting and fixing the gear sleeve 43 to the base 8, at least one end of the gear sleeve 43 can be set to an open shape, so that it is convenient to process the inner side wall of the gear sleeve 43 to form the transmission teeth 44.
[0036] In order to facilitate the quick assembly and disassembly of the gear sleeve 43 and the base 8, two hook rings 431 and positioning holes 432 are arranged on the outer peripheral side wall of the gear sleeve 43, and the corresponding positions of the base 8 are respectively provided with barbed pins 81 and positioning inserts 82, and each pin 81 and positioning insert 82 can be inserted into the hook ring 431 and the positioning hole 432 respectively to make the gear sleeve 43 and the base 8 detachably connected and fixed. By providing the hook ring 431 and the corresponding pin 81, the pin 81 can be directly inserted into the hook ring 431 during assembly, which can greatly improve the assembly efficiency of the gear. Since the base 8 is fixed on the housing of the driving mechanism 3 with the rotating shaft 31 as a reference, in order to ensure the coaxiality of the gear sleeve 43 and the rotating shaft 31, when assembling the gear sleeve 43, the coaxiality of the gear sleeve 43 and the rotating shaft 31 can be effectively ensured by inserting the positioning plug 82 arranged on the base 8 into the positioning hole 432 in the gear sleeve 43, thereby reducing the assembly error and improving the running stability of the hair trimming tool. Of course, there are many structures for achieving positioning, such as the cooperation of the pin and the pin hole, but the use of the positioning hole 432 and the positioning plug 82 structure is not only convenient for production costs, but also can effectively improve the radial force strength of the gear sleeve 43 and the base 8, and prevent the gear sleeve 43 and the base 8 from being misaligned due to unexpected factors such as bumps and collisions, thereby affecting the reliability of the hair trimming tool.
[0037] In order to prevent the axial movement of each reduction disc in the gear sleeve 43 and facilitate the connection and fixation of the impeller 5 and the first reduction disc 411, the first reduction disc 411 includes a circular base 4111, on which are provided a limit platform 4112 and a blade seat 4113 which are coaxially stacked and have successively smaller inner diameters. The impeller 5 has four pieces and is inclined and fixedly connected to the blade seat 4113 in a circular array as a whole; a limit hole 433 is provided at the port of the gear sleeve 43, and the inner diameter of the limit hole 433 is smaller than the outer diameter of the circular base 4111 but larger than the outer diameter of the limit platform 4112. The limit platform 4112 is placed in the limit hole 433 and its end face is placed outside the gear sleeve 43, so that the blade seat 4113 and the impeller 5 are respectively located above the gear sleeve 43. By arranging a circular base 4111, a limit platform 4112 and a blade seat 4113 on the first reduction disc 411, during assembly, the circular base 4111 and the limit platform 4112 are utilized, and the circular base 4111 is utilized to fit with the inner end surface of the gear sleeve 43, while the limit platform 4112 passes through the limit hole 433 on the gear sleeve 43 and is placed outside the gear sleeve 43. In this way, the gear sleeve 43 can limit the first reduction disc 411, so that the first reduction disc 411 is limited in the axial direction under the condition of being rotatable, and the first reduction disc 411 is effectively prevented from axially moving relative to the gear sleeve 43, thereby ensuring the smooth operation of each reduction disc in the transmission member 4. Secondly, a blade seat 4113 is arranged above the limiting platform 4112, and a plurality of impeller blades 5 are fixedly connected to the blade seat 4113 in a ring array, so that when the first reduction plate 411 rotates with the rotating shaft 31, the blade seat 4113 and the impeller blades 5 can rotate synchronously and form a suction effect to collect the broken hair. In the actual production process, due to the limitation of the limiting hole 433, the blade seat 4113 and the limiting platform 4112 are bonded or welded to be fixed as a whole.
[0038] The above embodiments should not be regarded as limiting the present invention, but any improvements based on the spirit of the present invention should be within the protection scope of the present invention.
Claims
1. A single-axis dual-speed output hair trimming tool with a suction function, comprising a stationary blade (1), a movable blade (2) and a driving mechanism (3), wherein the driving mechanism (3) has a rotating shaft (31) and is transmission-connected to the movable blade (2), and the rotating shaft (31) can drive the movable blade (2) and the stationary blade (1) to cooperate in cutting hair at a first rotation speed; characterized in that A transmission member (4) with a coaxial clearance fit is arranged outside the rotating shaft (31), the transmission member (4) is linked to the rotating shaft (31), an impeller blade (5) is arranged on the transmission member (4), and when the rotating shaft (31) drives the movable knife (2) at a first rotation speed, the transmission member (4) synchronously drives the impeller blade (5) to rotate at a second rotation speed to form a suction effect, and the second rotation speed of the transmission member (4) is lower than the first rotation speed of the rotating shaft (31).
2. The single-axis dual-speed output hair trimming tool with suction function according to claim 1, characterized in that The second rotational speed direction of the transmission member (4) is the same as or opposite to the first rotational speed direction of the rotating shaft (31).
3. The single-axis dual-speed output hair trimming tool with suction function according to claim 1, characterized in that A spline (32) is provided on the rotating shaft (31) and a main gear (6) is fixed at the spline (32). The main gear (6) rotates synchronously with a first rotation speed of the rotating shaft (31). The transmission member (4) is in transmission connection with the main gear (6) and outputs kinetic energy at a second rotation speed lower than the first rotation speed of the rotating shaft (31) to drive the impeller blade (5) to rotate to form a suction effect.
4. The single-axis dual-speed output hair trimming tool with suction function according to claim 1, characterized in that The transmission member (4) comprises a transmission disc (41), a sub-gear (42) and a gear sleeve (43); the gear sleeve (43) is in a hollow ring shape and is provided with a plurality of transmission teeth (44) on its inner peripheral side wall; the transmission disc (41) is provided with at least one and is sleeved outside the rotating shaft (31) and is clearance-matched with the rotating shaft (31); the sub-gear (42) is mounted on the transmission disc (41) and is meshed with the transmission teeth (44) and the main gear (6) respectively; one end of the gear sleeve (43) is connected and fixed to the housing of the driving mechanism (3); the other end of the gear sleeve (43) rotatably limits the transmission disc (41) in the gear sleeve (43), so that one end face of the transmission disc (41) is placed outside the gear sleeve (43); a plurality of impeller blades (5) are provided and are fixed on the transmission disc (41) in an annular array.
5. The single-axis dual-speed output hair trimming tool with suction function according to claim 4, characterized in that The transmission plate (41) comprises a first reduction plate (411), a second reduction plate (412) and a third reduction plate (413) which are stacked and sleeved along the rotating shaft (31) and are clearance-matched with the rotating shaft (31); the first reduction plate (411) is rotatably matched with the gear sleeve (43) and its end face is arranged outside the gear sleeve (43); secondary gears (7) are respectively arranged on the upper end faces of the second reduction plate (412) and the third reduction plate (413); a plurality of gear shafts (414) distributed in a planetary manner are respectively arranged on the lower end faces of each reduction plate, and a sub-gear (42) is respectively installed outside each gear shaft (414); the sub-gears (42) installed on the lower end face of the first reduction plate (411) are respectively connected to the secondary gears (7) on the upper end face of the second reduction plate (412) The auxiliary gear (42) mounted on the lower end surface of the second reduction disc (412) is meshed with the secondary gear (7) of the third reduction disc (413) and the transmission gear (44) on the gear sleeve (43); the auxiliary gear (42) mounted on the lower end surface of the third reduction disc (413) is meshed with the primary gear (6) outside the rotating shaft (31) and the transmission gear (44) on the gear sleeve (43); the auxiliary gear (42) mounted on the lower end surface of the third reduction disc (413) is meshed with the primary gear (6) outside the rotating shaft (31) and the transmission gear (44) on the gear sleeve (43); the second rotation speed of the first reduction disc (411) is lower than the first rotation speed of the rotating shaft (31), and the first reduction disc (411) and the rotating shaft (31) rotate in opposite directions; a plurality of impeller blades (5) are fixed on the first reduction disc (411) in an annular array and are arranged outside the gear sleeve (43).
6. The single-axis dual-speed output hair trimming tool with suction function according to claim 4, characterized in that The gear sleeve (43) is detachably connected and fixed to the base (8); the base (8) is placed on an end surface of the driving mechanism (3) on which the rotating shaft (31) is arranged and is fixedly connected to the driving mechanism (3).
7. The single-axis dual-speed output hair trimming tool with suction function according to claim 6, characterized in that Two hook rings (431) and positioning holes (432) are arranged on the outer peripheral side wall of the gear sleeve (43) in opposite directions, and corresponding positions of the base (8) are provided with barbed pins (81) and positioning inserts (82), respectively. Each pin (81) and positioning insert (82) can be inserted into the hook ring (431) and the positioning hole (432) respectively to connect and fix the gear sleeve (43) and the base (8) in a detachable manner.
8. The single-axis dual-speed output hair trimming tool with suction function according to claim 5, characterized in that The first reduction disc (411) comprises a circular base (4111), on which are provided a limiting platform (4112) and a blade seat (4113) which are coaxially stacked and have inner diameters that decrease successively; the impeller blades (5) are provided with four pieces which are inclined and fixedly connected to the blade seat (4113) in an annular array as a whole; a limiting hole (433) is provided at the port of the gear sleeve (43); the inner diameter of the limiting hole (433) is smaller than the outer diameter of the circular base (4111) but larger than the outer diameter of the limiting platform (4112); the limiting platform (4112) is placed in the limiting hole (433) and its end face is placed outside the gear sleeve (43), so that the blade seat (4113) and the impeller blade (5) are respectively located above the gear sleeve (43).