Beauty instrument

By using the guide slot of the limited device in the hydraulic instrument to move the push rod to the pushing rod, the problem of large vibration and weak thrust in the push mechanism is solved, and the stabilized leather effect of the micro -needle is achieved.

CN222399972UActive Publication Date: 2025-01-28SHENZHEN JINMO TECH CO LTD
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Patent Information

Application Number
CN202420663200.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-01
Publication Date
2025-01-28
Estimated Expiration
2034-04-01

AI Technical Summary

Technical Problem

The push rod mechanism of the water-light instrument has a large vibration and weak thrust, which affects the skin-breaking effect of the microneedle.

Method used

A beauty instrument is designed to move the push rod using the oriental groove with a limit device to reduce vibration and strengthen the thrust.

Benefits of technology

By reducing the vibration and strengthening thrust of the push mechanism, the stabilized leather effect of microneedes is guaranteed.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222399972U_ABST
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Abstract

The utility model discloses a beauty instrument. The beauty instrument comprises a shell; the push rod is movably arranged in the shell; the motor is arranged in the shell and located on one side of the push rod, and the axis direction of the motor is perpendicular to the moving direction of the push rod; the transmission wheel is arranged on an output shaft of the motor and is in transmission connection with the push rod; the limiting device is arranged on the shell, a guide groove is formed in the limiting device, and the push rod penetrates through the guide groove and is in sliding fit with the guide groove. According to the beauty instrument, the vibration of the push rod mechanism is reduced, and the thrust is strengthened, so that the skin breaking effect of the microneedle is ensured.
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Description

Technical Field

[0001] The utility model relates to the technical field of beauty instruments, in particular to a beauty instrument. Background Art

[0002] In the new era, the beauty instrument industry has ushered in unprecedented development opportunities, and beauty instrument products have gradually entered people's daily lives. As one of the many types of beauty instruments, the water light instrument uses micro needles to penetrate the skin at high speed, allowing the active ingredients of the essence to penetrate effectively, stimulating collagen proliferation and cell regeneration, repairing aging cells, and thus achieving beauty effects.

[0003] In order to achieve movement control of microneedles, hyaluronic acid analyzers are usually equipped with a push rod mechanism, which includes a motor, a cam and a push rod. When the motor drives the cam to rotate to drive the push rod to move, the push rod will produce a certain inclination angle along the cam, and will not move completely in a straight line, resulting in increased vibration and weakened thrust, which affects the skin-breaking effect of the microneedles. Utility Model Content

[0004] The main purpose of the utility model is to provide a beauty instrument, aiming to solve the technical problems of large vibration and weak thrust of the push rod mechanism of the current water light instrument.

[0005] To achieve the above object, the utility model provides a beauty instrument, which includes:

[0006] case;

[0007] A push rod, movably disposed in the housing;

[0008] A motor is disposed in the housing and located on one side of the push rod, wherein the axis direction of the motor is perpendicular to the moving direction of the push rod;

[0009] A transmission wheel, disposed on the output shaft of the motor and transmission-connected to the push rod;

[0010] The limiting device is arranged on the shell, and the limiting device is provided with a guide groove, and the push rod is passed through the guide groove and slidably cooperates with the guide groove.

[0011] In some embodiments, the limiting device includes a fixing seat;

[0012] The guide groove comprises a first guide groove, the first guide groove is located on the fixing seat, and one end of the push rod is arranged through the first guide groove.

[0013] In some embodiments, a first shock absorbing member is disposed in the first guide groove, and the first shock absorbing member is disposed around the push rod.

[0014] In some embodiments, the fixing seat is provided with a first installation cavity, the first installation cavity is communicated with the first guide groove, and the push rod passes through the first installation cavity to be inserted into the first guide groove;

[0015] In which, a second shock absorber is provided in the first installation cavity, and the second shock absorber is arranged around the push rod and the transmission wheel; or, a first shock absorber is provided in the first guide groove, and the first shock absorber is arranged around the push rod, a second shock absorber is provided in the first installation cavity, and the second shock absorber is arranged around the push rod and the transmission wheel, and the second shock absorber and the first shock absorber are integrally formed or separately arranged.

[0016] In some embodiments, one of the second shock absorbing member and the cavity wall of the first installation cavity is provided with a positioning notch, and the other is provided with a positioning protrusion matched with the positioning notch.

[0017] In some embodiments, the limiting device further includes a guide column;

[0018] The guide groove includes a second guide groove, the second guide groove is arranged on the guide column, and the other end of the push rod is inserted into the second guide groove.

[0019] In some embodiments, the other end of the push rod is sleeved with a third shock absorbing member, and contacts the groove wall of the second guide groove through the third shock absorbing member.

[0020] In some embodiments, the shell is provided with a third guide groove, and the other end of the push rod is inserted into the third guide groove.

[0021] In some embodiments, the fixing seat is provided with a second installation cavity, and the second installation cavity accommodates the motor.

[0022] In some embodiments, the end face of the transmission wheel has an eccentrically arranged transmission part, and the push rod is provided with a slide groove extending in a straight line, the transmission part is inserted in the slide groove, and the extension direction of the slide groove is respectively perpendicular to the axial direction of the motor and the moving direction of the push rod.

[0023] In some embodiments, the transmission part is sleeved with a rotating member, and the rotating member can rotate relative to the transmission part and can roll along the groove wall of the sliding groove; and / or,

[0024] There is a matching gap between the transmission part and the groove wall of the slide groove; and / or,

[0025] The eccentricity of the transmission part is less than half of the slot length of the slide slot.

[0026] When the beauty instrument of the utility model is working, the motor drives the transmission wheel to rotate, thereby driving the push rod to move, so that the push rod can push the beauty component (such as microneedles) of the beauty instrument to move. In the process of the movement of the push rod, the guide groove of the limit device guides the push rod to move stably along a straight line. Compared with the prior art, the beauty instrument of the utility model reduces the vibration of the push rod mechanism and strengthens the thrust, thereby ensuring the skin-breaking effect of the microneedles. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of a part of a beauty instrument in one embodiment of the utility model;

[0028] Figure 2 for Figure 1 A schematic diagram of the internal structure of a part of the beauty instrument in the embodiment;

[0029] Figure 3 for Figure 1 An exploded view of a portion of the beauty instrument in the embodiment;

[0030] Figure 4 This is a structural schematic diagram of another part of the beauty instrument in one embodiment of the utility model;

[0031] Figure 5 for Figure 4 A schematic diagram of the structure of another part of the beauty instrument in the embodiment from another viewing angle;

[0032] Figure 6 This is a schematic diagram of the split structure of the fixing seat and the second shock absorbing member in one embodiment of the utility model;

[0033] Figure 7 This is a schematic diagram of the structure in which the first shock absorbing member and the second shock absorbing member are integrally formed in one embodiment of the utility model;

[0034] Figure 8 This is a schematic structural diagram of a third shock absorbing member in an embodiment of the utility model;

[0035] Fig. 9 This is a schematic diagram of the assembly structure of the motor, the transmission wheel and the push rod in one embodiment of the utility model;

[0036] Fig.10 It is a schematic diagram of the assembly structure of the motor, the transmission wheel and the push rod in another embodiment of the utility model. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the scheme in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0040] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0041] The utility model provides a beauty instrument, referring to Figure 1 and Figure 2 The beauty instrument at least includes: a housing 110; a push rod 120, which is movably arranged in the housing 110; a motor 130, which is arranged in the housing 110 and is located on one side of the push rod 120, and the axial direction of the motor 130 is perpendicular to the moving direction of the push rod 120; a transmission wheel 140, which is arranged on the output shaft of the motor 130 and is transmission-connected to the push rod 120; a limiting device 150, which is arranged in the housing 110, and the limiting device 150 is provided with a guide groove 10, and the push rod 120 is inserted into the guide groove 10 and slidably cooperates with the guide groove 10.

[0042] In this embodiment, the shape of the housing 110 can be a long strip, etc., and is set according to actual conditions. The housing 110 is used to set structures such as the push rod 120, the motor 130, and the limit device 150. When the beauty instrument is working, the motor 130 drives the transmission wheel 140 to rotate, thereby driving the push rod 120 to move, so that the push rod 120 can push the beauty component (not shown) of the beauty instrument to move. Specifically, the beauty component of the beauty instrument is located on the moving path of the push rod 120. During the reciprocating motion of the push rod 120, the push rod 120 continuously moves toward or away from the beauty component. The beauty component can be a micro needle, an essence bottle, etc., and is set according to actual conditions. The axis direction of the motor 130 is perpendicular to the moving direction of the push rod 120, that is, the push rod 120 mechanism adopts a vertical layout. Optionally, the axis direction of the motor 130 is the same as the length direction of the housing 110. The push rod 120 is horizontally arranged and can move relative to the housing 110. The motor 130 is located below the push rod 120. The output shaft of the motor 130 is vertically arranged upward and is connected to the push rod 120 through the installed transmission wheel 140. The transmission wheel 140 can be a cam, which is driven by the motor 130 to rotate eccentrically to drive the push rod 120 to move.

[0043] The guide groove 10 on the limit device 150 is adapted to the push rod 120, and the push rod 120 can slide on the limit device 150 by slidingly cooperating with the guide groove 10. The structural composition and structural form of the limit device 150 are not limited. The limit device 150 can be a single structural member or a combination of multiple structural members, and the guide groove 10 can be a single one to guide the movement of the push rod 120, or a combination of multiple ones to guide the movement of the push rod 120, which can be set according to actual conditions.

[0044] Among them, during the movement of the push rod 120, the guide groove 10 of the limit device 150 guides the push rod 120 to move so that the push rod 120 moves stably along a straight line. Compared with the prior art, this beauty instrument reduces the vibration of the push rod 120 mechanism and strengthens the thrust, thereby ensuring the skin-breaking effect of the microneedle.

[0045] The beauty instrument involved in this embodiment may be a water light instrument, including but not limited to this, and those skilled in the art may set it according to actual conditions.

[0046] In some embodiments, reference Figures 1 to 3 , the limiting device 150 includes a fixing seat 151;

[0047] The guide groove 10 includes a first guide groove 11 . The first guide groove 11 is located on the fixing seat, and one end of the push rod 120 is arranged through the first guide groove 11 .

[0048] Specifically, the first guide groove 11 is set through two opposite sides of the fixing seat 151, and is adapted to one end of the push rod 120, and one end of the push rod 120 passes through the first guide groove 11 for setting. Optionally, the end of the push rod 120 passing through the first guide groove 11 is a pushing end for pushing the beauty component. When the push rod 120 moves, one end of the push rod 120 moves along the first guide groove 11, and the moving direction of one end of the push rod 120 is corrected by the first guide groove 11, thereby realizing the movement guidance of the push rod 120. Among them, the shape and structure of the fixing seat 151 are not limited, and can be set according to actual conditions. Optionally, the fixing seat 151 is detachably connected to the shell 110, and the form of the detachable connection can be screw connection, snap connection, etc., which is set according to actual conditions.

[0049] In some embodiments, reference Figure 2 and Figure 4 A first shock absorbing member 1 is disposed in the first guide groove 11 , and the first shock absorbing member 1 is disposed around the push rod 120 .

[0050] The first shock absorbing member 1 may be cylindrical, with the inner wall in contact with the push rod 120, and the outer wall in contact with the groove wall of the first guide groove 11. Optionally, the first shock absorbing member 1 is made of silicone material, but is not limited thereto, and any material that can achieve the shock absorbing effect can be used. When the push rod 120 moves along the first guide groove 11, the first shock absorbing member 1 in the first guide groove 11 can buffer and dampen the push rod 120 to reduce the vibration and noise generated by the push rod 120 during the movement. As other implementation schemes, the first shock absorbing member 1 can also use components such as springs to dampen the push rod 120 through the springs.

[0051] In some embodiments, reference Figure 2 , Figures 5 to 7 The fixing seat 151 is provided with a first installation cavity 151A, the first installation cavity 151A is communicated with the first guide groove 11, and the push rod 120 passes through the first installation cavity 151A to be inserted into the first guide groove 11;

[0052] Among them, a second shock absorber 2 is provided in the first installation cavity 151A, and the second shock absorber 2 is arranged around the push rod 120 and the transmission wheel 140; or, a first shock absorber 1 is provided in the first guide groove 11, and the first shock absorber 1 is arranged around the push rod 120, and a second shock absorber 2 is provided in the first installation cavity 151A, and the second shock absorber 2 is arranged around the push rod 120 and the transmission wheel 140, and the second shock absorber 2 and the first shock absorber 1 are integrally formed or separately arranged.

[0053] Among them, one end of the push rod 120 passes through the first installation cavity 151A and is correspondingly arranged through the first guide groove 11. The cavity structure of the first installation cavity 151A is adapted to the outer contour of the second shock absorber 2 for installing the second shock absorber 2. The push rod 120 passes through the second shock absorber 2, and the second shock absorber 2 is located between the push rod 120 and the transmission wheel 140 and the cavity wall of the installation cavity 151A. The inner side surface of the second shock absorber 2 can contact the push rod 120 and the transmission wheel 140, and the outer side surface of the second shock absorber 2 can contact the inner wall of the first installation cavity 151A. The second shock absorber 2 is roughly annular. In order to match the outer contour of the push rod 120 and the transmission wheel 140, the second shock absorber 2 can be designed into a special-shaped structure. Optionally, the second shock absorber 2 is made of silicone material, but is not limited to this. As long as the material that can achieve the shock absorption effect can be used. The second shock absorbing member 2 is provided to provide buffering, thereby effectively reducing the vibration and noise generated by the push rod 120 during the movement and the transmission wheel 140 driving the push rod 120.

[0054] Optionally, at the same time, a first shock absorbing member 1 is disposed in the first guide groove 110, and the first shock absorbing member 1 and the second shock absorbing member 2 are integrally formed or separately disposed. Figure 7 As shown, the second shock absorbing member 2 can be integrally formed with the first shock absorbing member 1, and the first shock absorbing member 1 protrudes from one end surface of the second shock absorbing member 2. Figure 6 During installation, the second shock absorbing member 2 and the first shock absorbing member 1 formed in one piece can be inserted from the side where the first installation cavity 151A of the fixing seat 151 is located. When the first shock absorbing member 1 is inserted into place in the first guide groove 11, the second shock absorbing member 2 is naturally installed in the first installation cavity 151A. In actual application, the second shock absorbing member 2 and the first shock absorbing member 1 are formed in one piece to perform shock absorbing as an overall shock absorbing structure, which helps to improve the shock absorbing effect.

[0055] Alternatively, the second shock absorbing member 2 can be provided separately from the first shock absorbing member 1. During installation, the first shock absorbing member 1 can be inserted from the side where the first guide groove 11 of the fixing seat 151 is located, and the second shock absorbing member 2 can be inserted from the side where the first installation cavity 151A of the fixing seat 151 is located.

[0056] In some embodiments, reference Figure 6 One of the second shock absorbing member 2 and the cavity wall of the first installation cavity 151A is provided with a positioning notch 1A, and the other is provided with a positioning protrusion 1B matched with the positioning notch 1A.

[0057] Among them, the positioning notch 1A and the positioning protrusion 1B can be set in one group or multiple groups, which can be set according to the actual situation. When installing the second shock absorber 2, the second shock absorber 2 can be quickly installed in the first installation cavity 151A by aligning and inserting the positioning notch 1A and the positioning protrusion 1B, which helps to improve the installation efficiency. In addition, after the second shock absorber 2 is installed, the movement of the second shock absorber 2 can be limited by inserting and fitting the positioning protrusion 1B and the positioning notch 1A, so as to achieve the stable installation of the second shock absorber 2 in the first installation cavity 151A and ensure its shock absorption effect.

[0058] In some embodiments, the limiting device 150 further includes a guide post 152;

[0059] The guide groove 10 includes a second guide groove 12 . The second guide groove 12 is disposed on the guide column 152 . The other end of the push rod 120 is inserted into the second guide groove 12 .

[0060] Specifically, the second guide groove 12 is arranged on the guide column 152 along its length direction, the notch of the second guide groove 12 faces the push rod 120, and the other end of the push rod 120 (i.e., the opposite end of the push end) is inserted into the second guide groove 12 for arrangement. When the push rod 120 moves, the other end of the push rod 120 moves along the second guide groove 12 accordingly, and the moving direction of the other end of the push rod 120 is guided by the second guide groove 12, thereby realizing the movement guidance of the push rod 120. It is easy to understand that the second guide groove 12 and the first guide groove 11 are located on the same straight line, and guide the two ends of the push rod 120 respectively. Through the cooperation and guidance of the second guide groove 12 and the first guide groove 11, the push rod 120 can move stably along a straight line.

[0061] like Figure 3 As shown, the guide column 152 can be disposed on the inner wall of the housing 110 and can be integrally formed with the housing 110 or detachably connected to the housing 110. In addition to this embodiment, the guide column 152 can also be detachably connected to the fixing seat 151, and the two can be connected to form a module as a whole to guide the push rod 120 and facilitate the setting.

[0062] In some embodiments, reference Figure 2 and Figure 8 The other end of the push rod 120 is sleeved with a third shock absorbing member 3 and contacts the groove wall of the second guide groove 12 through the third shock absorbing member 3 .

[0063] The third shock absorbing member 3 has an opening at one end, and is sleeved on the other end of the push rod 120 through the opening. The inner wall of the third shock absorbing member 3 contacts the push rod 120, and the outer wall contacts the groove wall of the second guide groove 12. Figure 2 and Figure 8As shown, the outer surface of the third shock absorber 3 is integrally formed with an annular protrusion 3a arranged along its circumference, and the annular protrusion 3a is against the groove wall of the second guide groove 12. When the third shock absorber 3 absorbs shock, it deforms by squeezing the annular protrusion 3a, which can avoid blocking the movement of the push rod 120. Optionally, the third shock absorber 3 is made of silicone material, but it is not limited to this. Any material that can achieve a shock absorbing effect can be used. When the push rod 120 moves along the second guide groove 12, the third shock absorber 3 can buffer and absorb shock to the push rod 120, so as to effectively reduce the vibration and noise generated by the push rod 120 during the movement.

[0064] In some embodiments, the housing 110 is provided with a third guide groove, and the other end of the push rod 120 is inserted into the third guide groove. That is, when the push rod 120 moves, the other end of the push rod 120 moves along the third guide groove of the housing 110, and the moving direction of the other end of the push rod 120 is guided by the third guide groove of the housing 110, thereby achieving movement guidance of the push rod 120.

[0065] Furthermore, a fourth damping member may be sleeved on the other end of the push rod 120 so as to contact the groove wall of the third guide groove through the fourth damping member, and the fourth damping member can buffer and damp the push rod 120 to reduce vibration and noise. The structural structure of the fourth damping member can be set with reference to the third damping member 3, and will not be described in detail here.

[0066] In some embodiments, reference Figures 4 to 6 The fixing seat 151 is provided with a second installation cavity 151B, and the second installation cavity 151B accommodates the motor 130 .

[0067] The shape of the second installation cavity 151B is set according to the external structure of the motor 130. The second installation cavity 151B can accommodate the entire structure of the motor 130 or only a part of the structure of the motor 130, and can be set according to actual conditions. Figure 3 and Figure 6 As shown, when the second installation cavity 151B of the fixing seat 151 accommodates part of the structure of the motor 130, the fixing seat 151 cooperates with the housing 110 to fix the motor 130. Specifically, a plurality of first reinforcing ribs 21 may be provided in the second installation cavity 151B to support one side of the motor 130 through the plurality of first reinforcing ribs 21, and a plurality of second reinforcing ribs 22 may be protrudingly provided on the inner wall of the housing 110. When the fixing seat 151 is connected to the housing 110, the plurality of second reinforcing ribs 22 of the housing 110 support the other side of the motor 130, thereby fixing the motor 130.

[0068] The motor 130 is accommodated in the second installation cavity 151B so as to be positioned together with the push rod 120 on the fixing seat 151, that is, they are arranged on the same component. The relative position of the motor 130 and the push rod 120 is more stable, which helps to improve the driving stability and reduce the vibration of the push rod 120 during movement; and the motor 130, the push rod 120, the fixing seat 151, etc. can correspond to be used as a module to be assembled to the housing 110, which is convenient for disassembly and assembly, and can improve assembly efficiency.

[0069] In some embodiments, reference Fig. 9 The end face of the transmission wheel 140 has an eccentrically arranged transmission part 141, and the push rod 120 is provided with a slide groove 121 extending in a straight line. The transmission part 141 is inserted into the slide groove 121, and the extension direction of the slide groove 121 is perpendicular to the axial direction of the motor 130 and the moving direction of the push rod 120.

[0070] Specifically, when the motor 130 drives the transmission wheel 140 to rotate, the transmission part 141 rotates eccentrically, and the transmission part 141 moves along the groove wall of the groove 121 in the slide groove 121, so as to move the push rod 120 by squeezing the groove wall of the slide groove 121. The transmission part 141 involved is eccentrically arranged, and the rotation axis of the transmission wheel 140 and the rotation axis of the output shaft of the motor 130 can be colinear, and the transmission part 141 is eccentrically arranged on the transmission wheel 140. Alternatively, the transmission wheel 140 can be eccentrically arranged, that is, the rotation axis of the transmission wheel 140 and the rotation axis of the output shaft of the motor 130 are not colinear, so that the transmission wheel 140 is eccentrically arranged.

[0071] In some embodiments, reference Fig.10 The transmission part 141 is sleeved with a rotating member 160, which can rotate relative to the transmission part 141 and roll along the groove wall of the slide groove 121. Through the rotating member 160, the sliding friction between the transmission part 141 and the groove wall of the slide groove 121 is converted into rolling friction, which can extend the service life, and the transmission is smoother and more flexible, which helps to reduce the vibration of the push rod 120 during the movement. Optionally, the rotating member 160 uses a bearing, which is easy to obtain and simple to use. In addition, the rotating member 160 can also use a roller or the like.

[0072] In some embodiments, there is a matching gap between the transmission part 141 and the groove wall of the slide groove 121. The size of the matching gap is set according to actual conditions. By reserving the matching gap, there is a margin of movement when the transmission part 141 squeezes the groove wall of the slide groove 121, which can ensure effective transmission of the push rod 120 to prevent jamming.

[0073] In some embodiments, the eccentricity of the transmission part 141 is less than half of the slot length of the chute 121. In actual operation, the motor 130 drives the transmission wheel 140 to rotate, the transmission part 141 rotates eccentrically from the initial position, and the transmission part 141 moves in the chute 121 along the slot wall of the chute 121 in the forward direction, so as to squeeze the slot wall of the chute 121 and make the push rod 120 move and extend. Because the eccentricity of the transmission part 141 is less than half of the slot length of the chute 121, when the transmission wheel 140 rotates 180°, the transmission part 141 will not reach the slot end of the chute 121, and as the transmission wheel 140 continues to rotate, the transmission part 141 moves in the chute 121 along the slot wall of the chute 121 in the reverse direction, so as to squeeze the slot wall of the chute 121 and make the push rod 120 move and retract. That is, the motor 130 only needs to rotate in one direction, such as forward rotation, to make the push rod 120 reciprocate. Compared with the method in which the motor 130 rotates forward and reverse to drive the push rod 120 to reciprocate, it is simple to use and easy to operate.

[0074] The above description is only a partial or preferred embodiment of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields are included in the scope of protection of the present invention.

Claims

1. A beauty instrument, characterized in that: include: case; A push rod, movably disposed in the housing; A motor is disposed in the housing and located on one side of the push rod, wherein the axis direction of the motor is perpendicular to the moving direction of the push rod; A transmission wheel, disposed on the output shaft of the motor and transmission-connected to the push rod; The limiting device is arranged on the shell, and the limiting device is provided with a guide groove, and the push rod is passed through the guide groove and slidably cooperates with the guide groove.

2. The beauty instrument according to claim 1, characterized in that: The limiting device includes a fixing seat; The guide groove comprises a first guide groove, the first guide groove is located on the fixing seat, and one end of the push rod is arranged through the first guide groove.

3. The beauty instrument according to claim 2, characterized in that: A first shock absorbing member is disposed in the first guide groove, and the first shock absorbing member is disposed around the push rod.

4. The beauty instrument according to claim 2, characterized in that: The fixing seat is provided with a first installation cavity, the first installation cavity is communicated with the first guide groove, and the push rod passes through the first installation cavity to be inserted into the first guide groove; In which, a second shock absorber is provided in the first installation cavity, and the second shock absorber is arranged around the push rod and the transmission wheel; or, a first shock absorber is provided in the first guide groove, and the first shock absorber is arranged around the push rod, a second shock absorber is provided in the first installation cavity, and the second shock absorber is arranged around the push rod and the transmission wheel, and the second shock absorber and the first shock absorber are integrally formed or separately arranged.

5. The beauty instrument according to claim 4, characterized in that: One of the second shock absorbing member and the cavity wall of the first installation cavity is provided with a positioning notch, and the other is provided with a positioning protrusion matched with the positioning notch.

6. The beauty instrument according to claim 2, characterized in that: The limiting device also includes a guide column; The guide groove includes a second guide groove, the second guide groove is arranged on the guide column, and the other end of the push rod is inserted into the second guide groove.

7. The beauty instrument according to claim 6, characterized in that: The other end of the push rod is sleeved with a third shock absorbing member and contacts the groove wall of the second guide groove through the third shock absorbing member.

8. The beauty instrument according to claim 2, characterized in that: The housing is provided with a third guide groove, and the other end of the push rod is inserted into the third guide groove.

9. The beauty instrument according to claim 2, characterized in that: The fixing seat is provided with a second installation cavity, and the second installation cavity accommodates the motor.

10. The beauty instrument according to claim 1, characterized in that: The end face of the transmission wheel has an eccentrically arranged transmission part, and the push rod is provided with a slide groove extending in a straight line, the transmission part is inserted in the slide groove, and the extension direction of the slide groove is respectively perpendicular to the axial direction of the motor and the moving direction of the push rod.

11. The beauty instrument according to claim 10, characterized in that: The transmission part is sleeved with a rotating member, and the rotating member can rotate relative to the transmission part and can roll along the groove wall of the sliding groove; and / or, There is a matching gap between the transmission part and the groove wall of the slide groove; and / or, The eccentricity of the transmission part is less than half of the slot length of the slide slot.