Portable mini massage gun

Abstract

Portable mini massage gun, characterized by the fact that it includes the following: a housing (100) wherein a cavity is formed in the housing (100); a motor (200) which is mounted in the housing (100), wherein the rotating shaft of the motor (200) is connected to an eccentric wheel (300); a transmission mechanism (400) which is slidably mounted in the housing (100), wherein the transmission mechanism (400) comprises a transmission rod (410) and a sleeve (420), wherein both ends of the transmission rod (410) are articulated to the sleeve (420) and the eccentric wheel (300), respectively; a power supply (500) for the provision of electrical energy; wherein the motor (200) and the transmission mechanism (400) form an angled section between them, wherein the power supply (500) is attached at the angled section inside the housing (100), giving the housing (100) a flat profile.

Description

Technical field

[0001] The present utility model relates to the technical field of massage guns, in particular to a portable mini massage gun. Background technology

[0002] As a muscle massage device, the massage gun can effectively contribute to muscle relaxation after intense training. It is very popular among fitness enthusiasts and outdoor athletes.

[0003] The massage gun primarily operates on the crank-slide principle, where a motor and transmission mechanism drive the massage head to perform a back-and-forth motion. Due to technical limitations and restrictions inherent in the operating principles, the internal structure of a massage gun requires the motor to be positioned perpendicular to the transmission mechanism. This arrangement serves a dual purpose: firstly, to accommodate the handle necessary for user comfort, and secondly, to maximize internal space utilization within the handle and extend the massage gun's battery life. Consequently, an angled configuration is consistently used in existing massage guns.

[0004] With the advancement of massage gun technology, fitness enthusiasts are increasingly hesitant to use shared massage guns in gyms due to hygiene concerns, while outdoor enthusiasts are seeking lighter versions for easier portability. Portable mini massage guns are gaining popularity on the market. These massage guns are only a third the size of conventional massage guns, or even smaller, thanks to reduced battery dimensions and a miniaturized transmission mechanism.

[0005] However, the design of conventional massage guns has become technologically stagnant. Due to the compact size of mini massage guns, the handle intended for the angled section is significantly smaller than the palm of the hand. This configuration proves to be awkward for gripping and also results in wasted space. Content of the utility model

[0006] The present utility model aims to remedy the shortcomings of the prior art by providing a portable mini massage gun. The approach is intended to solve the problem that current massage guns have complex internal structures and require a lot of space in their housing, resulting in a bulky design that is impractical to transport.

[0007] To achieve the above-mentioned purpose, the present utility model employs the following technical solution: A portable mini massage gun, including: a housing, wherein a cavity is formed in the housing; a motor that is mounted in the housing, wherein the rotating shaft of the motor is connected to an eccentric wheel; a transmission mechanism that is slidably mounted in the housing, wherein the transmission mechanism is configured to be driven by the eccentric wheel and to drive a massage head to perform a back-and-forth movement; a power supply for providing electrical energy; wherein the motor and the transmission mechanism form an angled point between them, with the power supply being attached at the angled point inside the housing, giving the housing a flat profile. Furthermore, an eccentric stub is provided on the eccentric wheel, wherein the central axis of the eccentric stub is offset relative to an output shaft of the motor. wherein, in axial projection direction, the output shaft of the motor is located within the contour of the outer edge of the eccentric stub, allowing the output shaft of the motor to extend into the interior of the eccentric stub.

[0008] Furthermore, one end of the transmission rod is provided with a circular groove and the end of the transmission rod is inserted over the outer circumference of the eccentric stub via the circular groove, while a bearing is arranged between the eccentric stub and the transmission rod.

[0009] Furthermore, the motor is an external rotor motor, wherein the motor is mounted inside the housing via a mounting disc, where the maximum radius of the outer wall of the circular groove is r, the eccentricity of the eccentric stub is d, and the radius of the mounting washer is R. where the sum of the maximum radius r of the outer wall of the circular groove and the eccentricity d of the eccentric stub is smaller than the radius R of the mounting washer, such that the outer diameter of the circular displacement path of the transmission rod is smaller than the outer diameter of the mounting washer.

[0010] Furthermore, a first damping cushion is provided on the outer wall of the mounting disc, wherein the first damping cushion is located between the mounting disc and the housing.

[0011] Furthermore, the transmission mechanism comprises a transmission rod and a sleeve, wherein both ends of the transmission rod are articulated to the sleeve and the eccentric wheel respectively, with the pivot point between the transmission rod and the sleeve being located inside the sleeve.

[0012] Furthermore, the side wall of the sleeve is provided with a positioning hole, the transmission rod is provided with a through hole, and a plug pin is inserted into both the positioning hole and the through hole to establish the linkage between the transmission rod and the sleeve.

[0013] Furthermore, a bushing is arranged between the transmission rod and the sleeve, the bushing being in close contact with the inner wall of the sleeve. wherein the socket extends into the through-hole and wherein the socket is located between the inner wall of the through-hole and the plug pin.

[0014] Furthermore, a sliding bushing is provided inside the housing, wherein the sleeve is located inside the sliding bushing and a silicone sleeve is arranged between the sliding bushing and the housing.

[0015] Furthermore, the mini massage gun includes a control panel, the control panel being positioned above the transmission mechanism, with an operating button and a charge indicator provided on the control panel.

[0016] The technical solution of this utility model consists of arranging the power supply horizontally at the angled point between the motor and the transmission mechanism. This effectively utilizes the previously complex and difficult-to-use structural cavity, thereby improving the overall use of the housing's interior space. This arrangement meets the requirements for the miniaturization of portable devices. The horizontal layout overcomes the technical inertia of traditional angled-point-based designs and eliminates superfluous handles, resulting in a more compact overall form. This facilitates the development of miniaturized, lightweight massage guns, ideal for outdoor use and mobile transport. The conventional handle design has been eliminated, thus resolving the problem of excessively short handles on compact massage guns, which make a comfortable grip difficult.This redesign improves the overall handling and usability of the device, and therefore also its user-friendliness.

[0017] Further features and advantages of the present utility model are explained in the following description and are partly evident from the description itself or become clear through the implementation of the present utility model. The purpose and other advantages of the present utility model can be realized and enabled by the structures specifically described in the written description and the accompanying drawings. Illustration of the attached figures

[0018] The present utility model is described in detail below with reference to the attached drawings in order to clarify the aforementioned advantages of the present utility model. Fig. Figure 1 is a schematic representation of a portable mini massage gun according to the present utility model; Fig. Figure 2 is a schematic layout representation of a portable mini massage gun according to the present utility model; Fig. Figure 3 is an internal schematic representation of a portable mini massage gun according to the present utility model; Fig. Figure 4 is a sectional view of a portable mini massage gun according to the present utility model; Fig. Figure 5 is a partially schematic representation of a portable mini massage gun according to the present utility model; Fig. Figure 6 is a schematic representation of the motor of a portable mini massage gun according to the present utility model; Fig. Figure 7 shows the installation dimensions of the motor of a portable mini massage gun according to the present utility model; Fig. Figure 8 is a schematic representation of the transmission mechanism of a portable mini massage gun according to the present utility model; Fig. Figure 9 is a sectional view of the transmission mechanism of a portable mini massage gun according to the present utility model. Detailed descriptions

[0019] Embodiments of the present utility model are described in detail below, and examples of these embodiments are illustrated in the accompanying drawings, where identical or similar designations everywhere denote identical or similar elements or elements with identical or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to illustrate the present utility model and are not to be understood as limiting the present utility model.

[0020] When describing the utility model, it should be noted that the terms "length", "width", "top", "bottom", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. refer to orientations or positions shown in the accompanying drawings or to the orientations or positions in which the subject matter of the application is usually arranged in use. These terms serve only to facilitate and simplify the description of the application and are not intended to indicate or imply that the arrangement or component referred to has a specific orientation and must be constructed and operated in a particular way. Therefore, they are not to be understood as a limitation of the utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be interpreted as indicating or implying a relative meaning, or as an implicit indication of the number of technical features referred to. Thus, a feature designated as "first" and "second" may explicitly or implicitly include one or more such features. In the description of this utility model, the term "several" refers to two or more, unless expressly stated otherwise.

[0022] In the embodiments of this utility model, terms such as "install," "connect," "connect," and "fasten" are to be interpreted broadly unless expressly stated and defined otherwise. They may, for example, denote permanent connections, detachable connections, or integral structures; they may refer to mechanical or electrical connections; they may be direct connections or indirect connections via an intermediate medium; they may represent internal communication between two components or an interactive relationship between two components. For a person skilled in the art, the specific meaning of the aforementioned terms in the context of the utility model is readily apparent in each individual case.

[0023] With reference to the Fig. 1 to Fig. 3 includes a portable mini massage gun: a housing 100, wherein a cavity is formed in the housing 100; a motor 200 which is mounted in the housing 100, wherein the rotating shaft of the motor 200 is connected to an eccentric wheel 300; a transmission mechanism 400 which is slidably mounted in the housing 100, wherein the transmission mechanism 400 is configured to be driven by the eccentric wheel 300 and to drive a massage head 10 to perform a back-and-forth movement; a power supply 500 for the provision of electrical energy; The motor 200 and the transmission mechanism 400 form an angled section between them, with the power supply 500 being mounted at this angled section within the housing 100, thus giving the housing 100 a flat profile. In contrast to the prior art, the present utility model optimizes the entire structural arrangement by designing the motor 200 and the transmission mechanism 400 to form an angled structure at a specific angle, with the power supply module 500 positioned at this angled section. This horizontal layout departs from the conventional design of vertical handles and longitudinally arranged batteries in traditional massage guns. While ensuring the full functionality of the internal components, the internal space utilization within the housing 100 is significantly improved, effectively reducing the overall length of the device.This allows for a flatter, shorter shape, making the device more portable.

[0024] With reference to the Fig. 2 to Fig. In this embodiment, an eccentric stub 310 is provided on the eccentric wheel 300, wherein the central axis of the eccentric stub 310 is offset relative to an output shaft 210 of the motor 200. In the axial projection direction, the output shaft 210 of the motor 200 is located within the contour of the outer edge of the eccentric stub 310, allowing the output shaft 210 of the motor 200 to extend into the interior of the eccentric stub 310. Conventional massage guns employ a design with an eccentric wheel 300, which necessitates the placement of the bearing 412 above the rotating shaft of the motor 200. This arrangement occupies considerable longitudinal space. The present design aims to maintain the integrity of the eccentric transmission mechanism while maximizing axial space efficiency by vertically overlapping the output shaft 210 of the motor 200 with the eccentric wheel 300 assembly. A high degree of integration is achieved through this inset overlap. The overall dimensions of the massage gun are further reduced, enabling an ultra-compact design that aligns with the trend toward portability.

[0025] In this embodiment, one end of the transmission rod 410 is provided with a circular groove 411, and the end of the transmission rod 410 is inserted over the outer circumference of the eccentric stub 310 via the circular groove 411, while a bearing 412 is arranged between the eccentric stub 310 and the transmission rod 410. This solution achieves sufficient horizontal clearance by mounting an eccentric stub 310 on the output shaft 210 of the motor 200, with its central axis offset relative to the motor 200's rotating shaft. This prevents direct interference between the bearing 412 and the motor 200's rotating shaft and simultaneously reduces the overall height of the massage gun.

[0026] In this solution, one end of the transmission rod 410 has a circular groove 411 through which the bearing 412 is mounted around the outer circumference of the eccentric stub 310. The position of the bearing 412 is thus optimized so that it does not have to protrude beyond the motor shaft 200, thereby reducing the overall height. To maximize space utilization, the output shaft 210 of the motor 200 is arranged within the contour of the eccentric stub 310 in the axial projection direction. This arrangement allows the rotating shaft of the motor 200 to be partially embedded in the eccentric stub 310, thereby reducing the height occupied by the bearing 412 relative to the rotating shaft of the motor 200. Consequently, the overall design achieves greater compactness.

[0027] In this embodiment, the motor 200 is an external rotor motor, wherein the motor 200 is mounted inside the housing 100 via a mounting disc 220, wherein the maximum radius of the outer wall of the circular groove is 411 r, the eccentricity of the eccentric stub is 310 d and the radius of the mounting washer is 220 R, wherein the sum of the maximum radius r of the outer wall of the circular groove 411 and the eccentricity d of the eccentric stub 310 is smaller than the radius R of the mounting washer 220, so that the outer diameter of the circular displacement path of the transmission rod 410 is smaller than the outer diameter of the mounting washer 220.

[0028] By ensuring that the sum of the maximum radius of the outer wall of the circular groove 411 and the eccentricity is smaller than the radius of the mounting washer 220, the path of movement of the transmission rod 410 remains confined within the outer contour of the mounting washer 220. This facilitates further miniaturization of the massage gun. The eccentric stub 310 is mounted on the output shaft 210 of the motor 200. Since its central axis is offset from the rotating shaft of the motor 200, it generates an eccentric movement during rotation. The transmission rod 410 is placed on the outer circumference of the eccentric stub 310 via the circular groove 411 and transmits the movement via the bearing 412. This induces a reciprocating motion in the horizontal plane at the end of the transmission rod 410, ultimately exciting the massage head 10 to perform an impact massage.The parametric constraint r + d < R ensures that the maximum range of motion of the transmission rod 410 – in particular its outer diameter path – remains consistently smaller than the radius of the mounting disc 220. This guarantees that its movement remains within the structural limits without exceeding the outer diameter of the mounting disc 220. This design makes the overall structure more compact, minimizes the space requirement, and makes the entire device more compact and portable.

[0029] In this embodiment, a first damping pad 221 is provided on the outer wall of the mounting disc 220, and the first damping pad 221 is located between the mounting disc 220 and the housing 100. The stator of the motor 200 is connected to the mounting disc 220. The housing 100 has a positioning slot 110, in which the mounting disc 220 is arranged. In contrast to the conventional method in the prior art, in which the motor 200 is fastened to the housing 100 by means of screws through a metal bracket, this technical solution eliminates the need for conventional screw fastening. By integrating a positioning slot 110 into the housing 100, the mounting disc 220 can be used directly for positioning, thereby achieving either a snap-fit ​​or a press-fit connection.This approach not only streamlines the assembly process and reduces manufacturing and maintenance costs, but also effectively minimizes structural complexity and installation thickness, enabling a slimmer design for the entire device.

[0030] Furthermore, this positioning slot 110 ensures stable installation of the motor 200 and simultaneously prevents long-term operational problems caused by loosening screws. This increases the durability and structural reliability of the massage gun and thus corresponds even better to the original design intent of this utility model, which focuses on compactness, miniaturization, and ease of assembly.

[0031] First, the motor 200 generates vibrations and noise of a certain intensity during operation. By installing the damping pad between the mounting disc 220 and the housing 100, mechanical vibrations caused by the high rotational speed of the motor 200 can be effectively absorbed and dampened. This simultaneously reduces the transmission and propagation of vibrations to the housing 100, thus achieving the goals of vibration damping and noise reduction. Consequently, user comfort and the overall experience during operation are improved.

[0032] Secondly, the damping pad possesses inherent elasticity and compressive strength. Once installed, it generates a preload force against the mounting plate 220, thus improving the stability of the mounting plate 220 within the positioning slot 110. This prevents loosening or slippage during long-term operation and further improves the reliability of the motor 200 installation and its structural integrity.

[0033] With reference to the Fig. 3 to Fig. In this embodiment, the transmission mechanism 400 comprises a transmission rod 410 and a sleeve 420, wherein both ends of the transmission rod 410 are articulated to the sleeve 420 and the eccentric wheel 300, respectively, with the pivot point between the transmission rod 410 and the sleeve 420 being located within the sleeve 420. In existing massage guns, the pivot point between the transmission rod 410 and the sleeve 420 is primarily achieved by the engagement of the bearing 412 with the rotating shaft. However, in portable massage guns, this pivot point has two disadvantages. First, pivoting via the rotating shaft requires a relatively wide rotating shaft, which makes controlling the thickness of the portable massage gun more difficult. Second, the mounting method of the rotating shaft positions the pivot point between the transmission rod 410 and the sleeve 420 at the rear end of the sleeve 420.This linkage results in an excessively long sleeve 420, which negatively impacts the control of the overall length of the portable massage gun. By positioning the linkage point between the transmission rod 410 and the sleeve 420 within the sleeve 420 itself, the transmission path is significantly reduced. This eliminates the structural bulk associated with conventional external pivot shafts, effectively minimizing the overall length of the massage gun. This design meets the requirements for a compact construction for portable products.

[0034] In this embodiment, the outer diameter of the transmission rod 410 is smaller than the inner diameter of the sleeve 420. This means that the transmission rod 410 does not cause any radial disturbance within the sleeve 420. This ensures that the linkage function is enabled, but the axial sliding movement of the sleeve 420 is not impeded. This structural arrangement guarantees that the sleeve 420 can continue to move smoothly back and forth within the sliding bushing 450 during the oscillating movement of the transmission rod 410 as it completes its eccentric drive cycle. This ensures the overall coordination and smooth operation of the transmission mechanism 400.

[0035] In this embodiment, the side wall of the sleeve 420 is provided with a positioning hole 421, and the transmission rod 410 is provided with a through hole 413, wherein a plug pin 430 is inserted into both the positioning hole 421 and the through hole 413 to establish the linkage between the transmission rod 410 and the sleeve 420. In particular, the side wall of the sleeve 420 is provided with a positioning hole 421 for the radial insertion of the plug pin 430; the transmission rod 410 has a through hole 413 at its position corresponding to the sleeve 420, wherein the through hole 413 is aligned with the positioning hole 421 on the sleeve 420. During assembly, a rotatable connection is established between the transmission rod 410 and the sleeve 420 by inserting the plug pin 430 successively through the positioning hole 421 and the through hole 413.

[0036] Compared to conventional linkages with a rotating shaft or bearing 412, the diameter of the plug pin 430 can be made smaller while ensuring high dimensional accuracy. This effectively reduces the width of the linkage, making it particularly suitable for the structural requirements of portable, compact massage guns.

[0037] In this embodiment, a bushing 440 is arranged between the transmission rod 410 and the sleeve 420, wherein the bushing 440 is in close contact with the inner wall of the sleeve 420. wherein the bushing 440 extends into the through-hole 413 and wherein the bushing 440 is located between the inner wall of the through-hole 413 and the pin 430. This serves to improve the connection stability and the smooth running of the linkage. In particular, the bushing 440 is fitted over the outer surface of the transmission rod 410 and installed inside the sleeve 420, its outer wall bearing tightly against the inner wall of the sleeve 420. The bushing 440 is preferably made of a material that exhibits excellent wear resistance and a certain degree of elasticity. On the one hand, the tight contact between the bushing 440 and the inner wall of the sleeve 420 effectively fills the gap between the transmission rod 410 and the sleeve 420.This improves positioning accuracy at the connection point, prevents wobbling or vibration due to excessive play, and contributes to improved operational stability of the entire transmission system. Furthermore, the bushing 440, acting as a transition buffer layer, absorbs some of the shock forces and vibrations during the movement of the transmission rod 410. This reduces frictional noise between the components and extends the service life of critical parts, especially the sleeve 420 and the plug pin 430. Simultaneously, the bushing 440 provides effective lubrication, thereby reducing sliding resistance during high-frequency reciprocating movements and minimizing wear. This further improves the smooth operation and quietness of the entire device.

[0038] The bushing 440 extends into the through-hole 413 and is located between the inner wall of the through-hole 413 and the plug pin 430. On the one hand, the bushing 440 forms a damping layer in the form of an interference fit or press fit within the through-hole 413, effectively compensating for play caused by assembly tolerances between the plug pin 430 and the through-hole 413. This improves the positioning accuracy and structural stability of the plug pin 430. On the other hand, the material of the bushing 440 exhibits excellent flexibility and wear resistance. Positioned around the plug pin 430, it provides damping, wear protection, and noise reduction, thus preventing direct friction between the plug pin 430 and metal components during high-frequency movements, which could cause noise or damage.At the same time, this design reduces the axial and radial wear of the 430 plug pin during operation to a certain degree, thereby extending the service life of the 430 plug pin and improving the reliability and service life of the entire transmission system.

[0039] In this embodiment, a sliding bushing 450 is provided within the housing 100, with the sleeve 420 located inside the sliding bushing 450 and a silicone sleeve 451 arranged between the sliding bushing 450 and the housing 100. To further optimize the stability and comfort during operation of the transmission mechanism 400, a silicone sleeve 451 is provided between the sliding bushing 450 and the housing 100. The outer circumference of the sliding bushing 450 is encased with a circumferential band of flexible damping material, creating a flexible fit with the inner wall of the housing 100. During the rapid reciprocating movement of the transmission mechanism 400, minute vibrations and shock forces generated during mechanical operation are effectively absorbed. This reduces noise and vibration throughout the entire operation of the device, leading to improved user-friendliness.

[0040] With reference to the Fig. 1 to Fig. 2 The mini massage gun in this embodiment further comprises a control panel 600, the control panel 600 being positioned above the transmission mechanism 400, and the control panel 600 being provided with an operating button 610 and a charge indicator 620. To improve ease of use, the control panel 600 is equipped with an operating button 610 and a charge indicator 620. The operating button 610 is used to switch the device on and off, to start and stop the motor 200, and to change the switching stages. The charge indicator 620 displays the current state of charge of the battery in real time, so that the user can monitor the remaining charge during operation and recharge the device in a timely manner.

[0041] In particular, the position of the 600 control panel is ergonomically optimized. When the user holds the massage gun in a normal grip, their thumb rests naturally on the 600 control panel, facilitating one-handed operation. This layout eliminates the inconveniences of conventional massage guns, where the user has to press the button with their other hand or operate the device blindly, thus improving the intuitive control and ease of use of the product.

[0042] When the motor starts, its output shaft drives the eccentric wheel into rotation. The eccentric end of the wheel generates an eccentric movement. The force is transmitted via the bearing located on the outside of the eccentric end to the transmission rod. One end of the transmission rod performs a circular motion around the eccentric end. Since the other end is pivoted at the sleeve and limited by the sliding bushing, this circular motion is converted into a reciprocating linear motion in the axial direction of the massage gun. This causes the front massage head to produce periodic pulses, resulting in a relaxing massage effect on the muscles.

[0043] Several structural optimizations work together during this process: The axial projection of the eccentric stub overlaps with that of the output shaft. The embedded design reduces the height of the transmission mechanism. The path limitation with r + d < R ensures that the transmission rod remains within the contour of the mounting disc at all times, thus preventing structural overreach.

[0044] Multiple linkage structures (such as pin, pivot and ball joints) in combination with bushings improve assembly precision and smoothness of power transmission.

[0045] The combination of the sliding bushing and the silicone sleeve ensures vibration damping and noise reduction during operation.

[0046] The power supply is positioned horizontally at the angled point between the motor and the transmission mechanism, maximizing internal space utilization and reducing the overall length of the device.

[0047] The control panel is within easy reach of the user. This allows users to adjust the switching levels, turn the device on and off, and check the battery level using the control button.

[0048] Through the aforementioned structural coordination and process design, the present utility model achieves an efficient rotating, eccentric, and reciprocating energy conversion process. While ensuring massage functions, a highly integrated, compact device with optimized functionality is realized. This is particularly suitable for personal health massage devices that place stringent demands on portability and miniaturization.

[0049] In summary, the present utility model proposes a comprehensive solution for a miniaturized massage gun suitable for portable applications by incorporating various optimizations to its internal structure. In particular, this includes the following: By arranging an angled point between the motor 200 and the transmission mechanism 400 and embedding the power supply 500 at the angled point, the internal space utilization of the housing 100 is effectively improved, enabling a flat and compact overall structure for the massage gun. By optimizing the spatial relationship between the eccentric wheel 300 and the output shaft 210 of the motor 200, the axial projection of the output shaft 210 falls within the contour area of ​​the eccentric wheel 300, thereby minimizing the space requirement in the longitudinal direction. By arranging a circular groove 411 on the outer circumference of the eccentric stub 310 and integrating a bearing 412, ensuring that the design parameters satisfy the condition r + d < R, the path of movement of the transmission rod 410 is prevented from exceeding the outer diameter of the mounting disc 220. This further reduces the overall dimensions of the device and optimizes the spatial configuration. By using a lightweight, compact linkage with plug pin 430, pin or ball joint between the transmission rod 410 and the sleeve 420, the length and width of the transmission mechanism 400 are effectively reduced, thereby improving the overall compactness of the massage gun. The integration of a flexible buffer structure consisting of the sliding bushing 450 and the silicone sleeve 451 reduces vibrations and noise, thereby improving the comfort and durability of the mini massage gun under high-frequency operating conditions.

[0050] The ergonomically optimized layout of the 600 control panel strikes a balance between compact dimensions and one-handed ease of use, thus improving the user experience.

[0051] Through the aforementioned multidimensional structural innovations, the present utility model has successfully achieved a high degree of integration and extreme miniaturization in the design of the massage gun product. This significantly improves portability, usability, and user comfort, offering excellent application prospects and competitiveness in the market.

[0052] In conclusion, it should be noted that the above embodiments merely represent preferred embodiments of the present utility model and do not serve to limit its scope. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art may further modify the described technical solutions of the aforementioned embodiments or replace individual technical features with equivalent ones. Any changes, equivalent replacements, or improvements made in the spirit and according to the principles of the present utility model are included within the scope of protection of this utility model.

Claims

[1] Portable mini massage gun, characterized by that it includes the following: a housing (100) wherein a cavity is formed in the housing (100); a motor (200) which is mounted in the housing (100), wherein the rotating shaft of the motor (200) is connected to an eccentric wheel (300); a transmission mechanism (400) which is slidably mounted in the housing (100), wherein the transmission mechanism (400) comprises a transmission rod (410) and a sleeve (420), wherein both ends of the transmission rod (410) are articulated to the sleeve (420) and the eccentric wheel (300), respectively; a power supply (500) for the provision of electrical energy; wherein the motor (200) and the transmission mechanism (400) form an angled section between them, wherein the power supply (500) is attached at the angled section inside the housing (100), giving the housing (100) a flat profile. [2] Mini massage gun according to claim 1, characterized by , that an eccentric stub (310) is provided on the eccentric wheel (300), wherein the central axis of the eccentric stub (310) is offset relative to an output shaft (210) of the motor (200), wherein in axial projection the output shaft (210) of the motor (200) is located within the contour of the outer edge of the eccentric stub (310), whereby the output shaft (210) of the motor (200) can be extended into the interior of the eccentric stub (310). [3] Mini massage gun according to claim 2, characterized by , that one end of the transmission rod (410) is provided with a circular groove (411) and the end of the transmission rod (410) is inserted over the outer circumference of the eccentric stub (310) via the circular groove (411), while a bearing (412) is arranged between the eccentric stub (310) and the transmission rod (410). [4] Mini massage gun according to claim 3, characterized by, that the motor (200) is an external rotor motor, wherein the motor (200) is mounted inside the housing (100) via a mounting disc (220), wherein the maximum radius of the outer wall of the circular groove (411) is r, the eccentricity of the eccentric stub (310) is d and the radius of the fastening washer (220) is R, wherein the sum of the maximum radius r of the outer wall of the circular groove (411) and the eccentricity d of the eccentric stub (310) is smaller than the radius R of the mounting washer (220), such that the outer diameter of the circular displacement path of the transmission rod (410) is smaller than the outer diameter of the mounting washer (220). [5] Mini massage gun according to claim 4, characterized by, that a first damping cushion (221) is provided on the outer wall of the mounting disc (220), wherein the first damping cushion (221) is located between the mounting disc (220) and the housing (100). [6] Mini massage gun according to claim 1, characterized by , that the pivot point between the transmission rod (410) and the sleeve (420) is located inside the sleeve (420). [7] Mini massage gun according to claim 6, characterized by , that the side wall of the sleeve (420) is provided with a positioning hole (421), wherein the transmission rod (410) is provided with a through hole (413), wherein a plug pin (430) is inserted into both the positioning hole (421) and the through hole (413) to establish the linkage between the transmission rod (410) and the sleeve (420). [8] Mini massage gun according to claim 7, characterized by, that a bushing (440) is arranged between the transmission rod (410) and the sleeve (420), wherein the bushing (440) is in close contact with the inner wall of the sleeve (420), wherein the bushing (440) extends into the through hole (413) and wherein the bushing (440) is located between the inner wall of the through hole (413) and the plug pin (430). [9] Mini massage gun according to claim 6, characterized by , that a sliding bushing (450) is provided inside the housing (100), wherein the sleeve (420) is located inside the sliding bushing (450) and a silicone sleeve (451) is arranged between the sliding bushing (450) and the housing (100). [10] Mini massage gun according to claim 1, characterized by , that it further comprises a control panel (600), wherein the control panel (600) is positioned above the transmission mechanism (400), and wherein a control button (610) and a charge indicator (620) are provided on the control panel (600).

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