Portable micro fascia gun

Abstract

The utility model belongs to the technical field of fascia guns, and relates to a portable micro fascia gun, which comprises a shell, an air inlet pipe, an air outlet pipe and an air outlet pipe, the motor is installed in the shell, and a rotating shaft of the motor is connected with an eccentric wheel; the transmission mechanism is installed in the shell in a sliding mode, and the transmission mechanism is configured to be driven by the eccentric wheel and drive the massage head to do reciprocating motion; the power supply is used for providing electric energy; wherein a corner is formed between the motor and the transmission mechanism, and the power supply is arranged in the shell, so that the shell is flat. High integration and extreme microminiaturization of fascia gun products are achieved, and portability, controllability and use comfort are remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the field of fascia gun technology and relates to a portable mini fascia gun. Background Technology

[0002] As a muscle massage device, the fascia gun can effectively help relax muscles after high-intensity exercise. It is very popular among fitness enthusiasts and outdoor sports lovers.

[0003] Fascia guns primarily utilize the crank-sliding principle, with a motor and transmission mechanism driving the massage head to reciprocate. Due to technical limitations and the constraints of their working principle, the massage points within the fascia gun's internal structure need to be perpendicular to the transmission mechanism. This is partly to facilitate user grip and partly to improve the utilization of space within the handle and extend the gun's battery life. Therefore, current fascia guns typically feature a corner structure.

[0004] With the development of massage guns, fitness enthusiasts are reluctant to use public massage guns in gyms due to hygiene concerns, and outdoor enthusiasts also want to reduce the weight of their massage guns for easier portability. Portable mini massage guns have become popular on the market. These guns are made to be only one-third or even smaller than ordinary massage guns by reducing battery size and transmission mechanism dimensions.

[0005] However, the layout of traditional fascia guns has become a technological inertia. Miniature fascia guns are already small in size, and the handles in corner layouts are much smaller than the palm of the hand. This layout is not only inconvenient to grip, but also wastes space. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of the existing technology by providing a portable miniature fascia gun, which aims to solve the problem that the existing fascia guns have complex internal structures, require a large shell space, and are therefore bulky and inconvenient to carry.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A portable miniature fascia gun, comprising:

[0009] A housing, wherein the housing has a cavity;

[0010] An electric motor is installed inside a housing, and the motor's shaft is connected to an eccentric wheel;

[0011] A transmission mechanism is slidably mounted inside the housing, and the transmission mechanism is configured to be driven by an eccentric wheel and drive the massage head to reciprocate.

[0012] A power source is used to provide electrical energy.

[0013] The motor and the transmission mechanism form a corner, and the power supply is installed inside the housing at the corner, making the housing flat.

[0014] Furthermore, the eccentric wheel is provided with an eccentric frustum, and the central axis of the eccentric frustum is offset from the output shaft of the motor;

[0015] In the axial projection direction, the output shaft of the motor is located within the contour of the outer edge of the eccentric frustum, so that the output shaft of the motor can extend into the eccentric frustum.

[0016] Furthermore, one end of the transmission rod is provided with a circular groove, and one end of the transmission rod is sleeved on the outside of the eccentric frustum through the circular groove. A bearing is provided between the eccentric frustum and the transmission rod.

[0017] Furthermore, the motor is an external rotor motor, and the motor is mounted inside the housing via a mounting plate;

[0018] The maximum radius r of the outer wall of the circular groove, the eccentricity d of the eccentric frustum, and the radius R of the fixed disk;

[0019] Wherein, the sum of the maximum radius r of the outer wall of the circular groove and the eccentricity d of the eccentric frustum is less than the radius R of the fixed disk, so that the outer diameter of the circumferential displacement trajectory of the transmission rod is less than the outer diameter of the fixed disk.

[0020] Furthermore, the outer wall of the fixed disk is provided with a first shock-absorbing pad, which is located between the fixed disk and the housing.

[0021] Furthermore, the transmission mechanism includes a transmission rod and a sleeve, with both ends of the transmission rod hinged to the sleeve and the eccentric wheel respectively, and the hinge point between the transmission rod and the sleeve located inside the sleeve.

[0022] Furthermore, the sleeve has a positioning hole on its side wall, and the transmission rod has a through hole. A pin is provided in the positioning hole and the through hole to realize the hinge connection between the transmission rod and the sleeve.

[0023] Furthermore, a bushing is provided between the transmission rod and the sleeve, and the bushing is in close contact with the inner wall of the sleeve;

[0024] The bushing extends into the through hole, and the bushing is located between the inner wall of the through hole and the pin.

[0025] Furthermore, a sliding bushing is provided inside the housing, the sleeve is located inside the sliding bushing, and a silicone sleeve is provided between the sliding bushing and the housing.

[0026] Furthermore, it also includes a control board, which is located above the transmission mechanism and is equipped with control buttons and a power indicator light.

[0027] By applying the technical solution of this utility model, the power supply is horizontally positioned at the corner between the motor and the transmission mechanism, effectively utilizing the previously complex and difficult-to-use gap, improving the overall utilization rate of the internal space of the casing, and meeting the miniaturization requirements of portable devices. The horizontal layout breaks away from the technical inertia of traditional corner structures, avoids redundant handles, and makes the overall shape more compact, facilitating the creation of mini, lightweight fascia guns suitable for outdoor use and portability. Eliminating the traditional handle structure solves the problem of excessively short and inconvenient handles for small fascia guns, making the entire machine easier to grip and control, and improving the user experience.

[0028] Other features and advantages of the present invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the present invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0029] The present invention will now be described in detail with reference to the accompanying drawings, so that the above-mentioned advantages of the present invention will become clearer.

[0030] Figure 1 This is a schematic diagram of a portable miniature fascia gun according to the present invention;

[0031] Figure 2 This is a schematic diagram of the layout of a portable miniature fascia gun according to the present invention;

[0032] Figure 3 This is an internal schematic diagram of a portable miniature fascia gun according to this utility model;

[0033] Figure 4 This is a cross-sectional view of a portable miniature fascia gun according to this utility model;

[0034] Figure 5 This is a partial schematic diagram of a portable miniature fascia gun according to the present invention;

[0035] Figure 6 This is a schematic diagram of the motor of a portable miniature fascia gun according to this utility model;

[0036] Figure 7 This is a schematic diagram of the motor mounting plate dimensions of a portable miniature fascia gun according to this utility model;

[0037] Figure 8 This is a schematic diagram of the transmission structure of a portable miniature fascia gun according to this utility model;

[0038] Figure 9 This is a cross-sectional view of the transmission structure of a portable miniature fascia gun according to this utility model. Detailed Implementation

[0039] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0040] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] In the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0043] Reference Appendix Figure 1-3 As shown, a portable miniature fascia gun includes:

[0044] Housing 100, wherein a cavity is provided inside the housing 100;

[0045] Motor 200 is installed inside housing 100, and the shaft of motor 200 is connected to eccentric wheel 300;

[0046] The transmission mechanism 400 is slidably installed in the housing 100. The transmission mechanism 400 is configured to be driven by the eccentric wheel 300 and drive the massage head 10 to reciprocate.

[0047] Power supply 500, used to provide electrical energy;

[0048] In this design, the motor 200 and the transmission mechanism 400 form an angle, and the power supply 500 is installed inside the housing 100 at this angle, making the housing 100 flat. Unlike existing technologies, this invention optimizes the overall structural layout by designing the motor 200 and transmission mechanism 400 at a certain angle, and placing the power supply 500 module at this angle. This horizontal arrangement breaks away from the traditional design of a fascia gun with a vertical handle and longitudinal battery. While ensuring the functionality of internal components, it significantly improves the utilization rate of the internal space of the housing 100 and effectively compresses the overall length, contributing to a flatter, shorter overall shape, making it more suitable for carrying.

[0049] Reference Appendix Figure 2-6 As shown in this embodiment, the eccentric wheel 300 is provided with an eccentric frustum 310, and the central axis of the eccentric frustum 310 is offset from the output shaft 210 of the motor 200.

[0050] 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 frustum 310, allowing the output shaft 210 of the motor 200 to extend into the eccentric frustum 310. Traditional fascia guns employ an eccentric wheel 300 structure, necessitating the bearing 412 to be positioned above the motor 200 shaft, occupying a significant amount of longitudinal space. This structural design aims to maximize the reduction of the axial space occupied by the motor 200 output shaft 210 and the eccentric wheel 300 structure through longitudinal overlap, while ensuring the integrity of the eccentric transmission function. This insertion-type overlap method achieves high integration, further compressing the overall size of the fascia gun and contributing to its miniaturization, thus meeting the trend towards portability.

[0051] In this embodiment, one end of the transmission rod 410 is provided with a circular groove 411. One end of the transmission rod 410 is sleeved on the outside of the eccentric frustum 310 through the circular groove 411. A bearing 412 is provided between the eccentric frustum 310 and the transmission rod 410. This solution provides sufficient space in the horizontal direction by installing the eccentric frustum 310 on the output shaft 210 of the motor 200 and offsetting its central axis from the rotating shaft of the motor 200, thus avoiding direct interference between the bearing 412 and the motor 200 shaft, while also reducing the overall height of the fascia gun.

[0052] In this solution, a circular groove 411 is provided at one end of the transmission rod 410. It is sleeved outside the eccentric frustum 310 through a bearing 412. The position of the bearing 412 is optimized so that it does not have to be higher than the rotating shaft of the motor 200, thereby reducing the overall height. The space utilization is maximized. In the axial projection direction, the output shaft 210 of the motor 200 is located within the contour of the eccentric frustum 310, that is, the shaft of the motor 200 can be partially embedded in the eccentric frustum 310. This reduces the height occupied by the bearing 412 relative to the shaft of the motor 200 and makes the overall structure more compact.

[0053] In this embodiment, the motor 200 is an outer-rotor motor, and the motor 200 is installed in the housing 100 through a fixing plate 220;

[0054] The maximum radius r of the outer wall of the circular groove 411, the eccentricity d of the eccentric frustum 310, and the radius R of the fixing plate 220;

[0055] Among them, the sum of the maximum radius r of the outer wall of the circular groove 411 and the eccentricity d of the eccentric frustum 310 is less than the radius R of the fixing plate 220, so that the outer diameter of the circumferential displacement trajectory of the transmission rod 410 is less than the outer diameter of the fixing plate 220.

[0056] By ensuring that the sum of the maximum radius of the outer wall of the circular groove 411 and the eccentricity is less than the radius of the fixing plate 220, it is guaranteed that the movement trajectory of the transmission rod 410 will not exceed the outer wall contour of the fixing plate 220, making the muscle massager more miniaturized. The eccentric frustum 310 is installed on the output shaft 210 of the motor 200. Since its central axis is offset from the shaft of the motor 200, an eccentric motion is generated during rotation. The transmission rod 410 is sleeved outside the eccentric frustum 310 through the circular groove 411, and the movement is transmitted by means of the bearing 412, causing the end of the transmission rod 410 to perform a reciprocating motion in the horizontal direction, and finally driving the massage head 10 to perform impact massage. The parameter constraint r + d < R means that the maximum movement range of the transmission rod 410, that is, its outer diameter trajectory, is always less than the radius of the fixing plate 220, ensuring its reasonable movement within the structure and not exceeding the outer diameter of the fixing plate 220. This design makes the overall structure more compact, avoids excessive space occupation, and makes the overall device more compact and portable.

[0057] In this embodiment, the outer wall of the fixed plate 220 is provided with a first shock-absorbing pad 221, which is located between the fixed plate 220 and the housing 100. The stator of the motor 200 is connected to the fixed plate 220, and the housing 100 is provided with a positioning groove 110, in which the fixed plate 220 is located. Unlike the common method in the prior art where the motor 200 is fixed to the housing 100 by a metal bracket and screws, this technical solution eliminates the traditional screw installation structure. By designing the positioning groove 110 in the housing 100, the fixed plate 220 can be directly inserted for positioning and achieve snap-fit ​​or compression engagement. This method not only simplifies the assembly process and reduces manufacturing and maintenance costs, but also effectively reduces structural layers and installation thickness, contributing to the flattened design of the entire machine.

[0058] In addition, the positioning groove 110 structure can maintain the installation stability of the motor 200 and avoid long-term use problems caused by loose screws, thereby improving the durability and structural reliability of the fascia gun and further meeting the design intention of this utility model in terms of compactness, small size and easy assembly.

[0059] First, the motor 200 will generate a certain amount of vibration and noise during operation. By adding a shock-absorbing pad between the fixed plate 220 and the housing 100, the mechanical vibration caused by the high-speed operation of the motor 200 can be effectively absorbed and buffered. At the same time, the transmission and diffusion of vibration to the housing 100 are reduced, thereby achieving the purpose of shock absorption and noise reduction, and improving the user's comfort and experience during use.

[0060] Secondly, the shock-absorbing pad itself has a certain degree of resilience and compressive strength. When installed, it forms a certain pre-tightening force with the fixed plate 220, which helps to enhance the stability of the fixed plate 220 in the positioning groove 110, prevent it from loosening or shifting during long-term use, and further improve the reliability and structural stability of the motor 200 installation.

[0061] Reference Appendix Figure 3-9As shown in this embodiment, the transmission mechanism 400 includes a transmission rod 410 and a sleeve 420. The two ends of the transmission rod 410 are hinged to the sleeve 420 and the eccentric wheel 300, respectively. The hinge point between the transmission rod 410 and the sleeve 420 is located inside the sleeve 420. In existing fascia guns, the hinge between the transmission rod 410 and the sleeve 420 is mainly achieved through a bearing 412 and a rotating shaft. However, in portable fascia guns, this hinge method has two drawbacks. Firstly, the rotating shaft has a relatively large width, which is not conducive to controlling the thickness of the portable fascia gun. Secondly, the way the rotating shaft is fixed causes the hinge point between the transmission rod 410 and the sleeve 420 to be located at the rear end of the sleeve 420. This hinge structure makes the sleeve 420 too long, which is not conducive to controlling the length of the portable fascia gun. By setting the hinge point between the transmission rod 410 and the sleeve 420 inside the sleeve 420, the transmission path length is significantly shortened, avoiding the structural length problem caused by the traditional external rotating shaft, effectively reducing the overall longitudinal dimension of the fascia gun, and making it suitable for the compact layout requirements of portable products.

[0062] In this embodiment, the outer diameter of the transmission rod 410 is smaller than the inner diameter of the sleeve 420, meaning that the transmission rod 410 does not cause radial interference inside the sleeve 420. This ensures that while achieving the hinge function, it does not hinder the axial sliding movement of the sleeve 420. This structural fit allows the sleeve 420 to still move smoothly back and forth within the sliding bushing 450 during the eccentrically driven oscillation of the transmission rod 410, ensuring the overall coordination and smoothness of the transmission mechanism 400's operation.

[0063] In this embodiment, the sleeve 420 has a positioning hole 421 on its side wall, and the transmission rod 410 has a through hole 413. A pin 430 is provided within the positioning hole 421 and the through hole 413 to achieve a hinged connection between the transmission rod 410 and the sleeve 420. Specifically, the positioning hole 421 is provided on the side wall of the sleeve 420 for the radial insertion of the pin 430; the transmission rod 410 has a through hole 413 at a position corresponding to the sleeve 420, which corresponds to the positioning hole 421 on the sleeve 420. During assembly, by sequentially passing the pin 430 through the positioning hole 421 and the through hole 413, a rotatable connection between the transmission rod 410 and the sleeve 420 can be achieved.

[0064] Compared to the traditional hinge method that uses a rotating shaft or bearing 412 structure, the diameter of the pin 430 component can be designed to be smaller, with higher fitting precision, effectively reducing the space occupied by the hinge structure in the width direction, which is very suitable for the structural requirements of portable and miniaturized fascia guns; effectively reducing the space occupied by the hinge structure in the width direction, which is very suitable for the structural requirements of portable and miniaturized fascia guns.

[0065] In this embodiment, a bushing 440 is provided between the transmission rod 410 and the sleeve 420, and the bushing 440 is in close contact with the inner wall of the sleeve 420;

[0066] The bushing 440 extends into the through hole 413, and is located between the inner wall of the through hole 413 and the pin 430. It is used to improve the connection stability and smooth operation of the hinged joint. Specifically, the bushing 440 is sleeved on the outside of the transmission rod 410 and installed inside the sleeve 420, with its outer wall tightly fitting against the inner wall of the sleeve 420. The bushing 440 is preferably made of a material with good wear resistance and a certain degree of elasticity. On the one hand, the close contact between the bushing 440 and the inner wall of the sleeve 420 can effectively fill the gap between the transmission rod 410 and the sleeve 420, improve the positioning accuracy of the connection part, prevent shaking or vibration caused by excessive gap, and help improve the overall stability of the transmission system. On the other hand, as a transition buffer layer, the bushing 440 can absorb some impact force and vibration during the movement of the transmission rod 410, thereby reducing frictional noise between components and extending the service life of key components, especially the sleeve 420 and the pin 430. At the same time, the bushing 440 also has a good lubrication effect, which can reduce sliding resistance and wear in high-frequency reciprocating motion, further improving the smoothness and quietness of the whole machine operation.

[0067] The bushing 440 extends into the through hole 413, and is located between the inner wall of the through hole 413 and the pin 430. On the one hand, the bushing 440 forms an interference fit or a close fit buffer layer inside the through hole 413, which can effectively absorb the wobble clearance caused by the assembly tolerance between the pin 430 and the through hole 413, and improve the positioning accuracy and structural stability of the pin 430. On the other hand, the bushing 440 material itself has good flexibility and wear resistance. Its location around the pin 430 can play a role in buffering, anti-wear and noise reduction, avoiding the pin 430 from directly rubbing against the metal parts during high-frequency movement, thus preventing noise or damage. At the same time, this design can also reduce the axial and radial wear of the pin 430 during movement to a certain extent, extend the service life of the pin 430, and improve the reliability and service life of the entire transmission system.

[0068] In this embodiment, a sliding bushing 450 is provided inside the housing 100, and a sleeve 420 is located inside the sliding bushing 450. A silicone sleeve 451 is provided between the sliding bushing 450 and the housing 100. To further optimize the stability and comfort of the transmission mechanism 400 during operation, a silicone sleeve 451 is provided between the sliding bushing 450 and the housing 100, that is, a flexible buffer material is wrapped around the outside of the sliding bushing 450, forming a flexible fit with the inner wall of the housing 100. When the transmission mechanism 400 reciprocates at high speed, it can effectively absorb the small vibrations and impacts generated during mechanical movement, thereby reducing the noise and vibration during the operation of the whole machine and improving the user experience.

[0069] Reference Appendix Figure 1-2 As shown in the illustration, this embodiment also includes a control board 600, which is located above the transmission mechanism 400. The control board 600 is equipped with control buttons 610 and a power indicator light 620. To improve ease of operation, the control board 600 is equipped with control buttons 610 and a power indicator light 620. The control buttons 610 are used for functions such as turning the device on / off, starting / stopping the motor 200, and shifting gears. The power indicator light 620 is used to display the current battery power status in real time, allowing users to easily monitor the remaining power and recharge the battery promptly.

[0070] In particular, the position of the control panel 600 is ergonomically optimized so that when the user holds the fascia gun normally, the thumb can naturally rest in the area of ​​the control panel 600, making it easy to operate with one hand. This layout avoids the inconvenience of traditional fascia guns requiring "reverse-hand button pressing" or "blind pressing," improving the intuitiveness of the product's operation and the comfort of use.

[0071] After the motor starts, its output shaft drives the eccentric wheel to rotate. The eccentric frustum of the eccentric wheel generates eccentric motion, which is transmitted to the transmission rod through the bearing located on the outside of the eccentric frustum. One end of the transmission rod makes a circular motion around the eccentric frustum. Since the other end is hinged to the sleeve and constrained by the sliding bushing structure, this circular motion is converted into the reciprocating linear motion of the sleeve along the axis of the fascia gun, thereby driving the front massage head to make periodic impacts and achieve a relaxing massage effect on the muscles.

[0072] In this process, multiple structural optimizations work synergistically:

[0073] The eccentric frustum overlaps with the axial projection of the output shaft, and the embedded design reduces the height of the drive mechanism;

[0074] The trajectory constraint design of r+d<R ensures that the transmission rod always moves within the contour of the fixed disk, avoiding structural overflow;

[0075] Multiple hinge structures (such as pin type, boss type, and positioning bead type) combined with bushing assistance improve assembly accuracy and transmission smoothness.

[0076] The combination of sliding bushing and silicone sleeve achieves vibration reduction and noise reduction during operation;

[0077] The power supply is placed horizontally in the corner formed by the motor and the transmission mechanism, maximizing the utilization of internal space and reducing the overall length of the machine.

[0078] The control panel is located in an easily accessible area for users, allowing them to adjust gears, switch on / off the power, and check battery level via control buttons.

[0079] Through the above-mentioned structural combination and process path design, this utility model realizes a highly efficient power conversion process of rotation-eccentricity-reciprocating, and achieves a high degree of integration, size compression and functional optimization of the overall device while ensuring the realization of the massage function. It is particularly suitable for personal health massage device scenarios with strict requirements for portability and miniaturization.

[0080] In summary, this utility model proposes a miniaturized fascia gun solution suitable for portable applications by optimizing the internal structure of the fascia gun in multiple aspects. Specifically, it includes:

[0081] By setting the motor 200 and transmission mechanism 400 in a corner layout and embedding the power supply 500 module at the corner, the internal space utilization of the housing 100 is effectively improved, and the overall structure of the fascia gun is flattened and miniaturized.

[0082] 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 range of the eccentric wheel 300, thereby minimizing the longitudinal space occupation.

[0083] By setting a circular groove 411 on the outside of the eccentric frustum 310 and cooperating with the bearing 412, and with the parameter design satisfying the constraint relationship of r+d<R, it is ensured that the movement trajectory of the transmission rod 410 does not exceed the outer diameter of the fixed disk 220, thereby further compressing the overall size and optimizing the spatial layout.

[0084] By adopting various lightweight and compact transmission rod 410 and sleeve 420 hinge structures such as pin 430, boss type or positioning ball type, the length and width of transmission mechanism 400 are effectively reduced, and the overall compactness of fascia gun is improved.

[0085] By setting a flexible buffer structure between the sliding bushing 450 and the silicone sleeve 451, vibration and noise are reduced, and the comfort and durability of the small fascia gun in a high-frequency operating environment are improved.

[0086] With its ergonomically optimized 600-inch control panel layout, it balances portability with ease of one-handed operation, enhancing the user experience.

[0087] Through the above-mentioned multi-dimensional structural innovations, this utility model has successfully achieved a high degree of integration and extreme miniaturization of fascia gun products, significantly improving portability, operability and user comfort, and possessing good application prospects and market competitiveness.

[0088] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A portable miniature fascia gun, characterized in that, include: A housing (100) having a cavity inside; A motor (200) is installed inside a housing (100), and the shaft of the motor (200) is connected to an eccentric wheel (300); A transmission mechanism (400) is slidably installed inside a housing (100). The transmission mechanism (400) includes a transmission rod (410) and a sleeve (420). The two ends of the transmission rod (410) are respectively hinged to the sleeve (420) and the eccentric wheel (300). Power supply (500), used to provide electrical energy; The motor (200) and the transmission mechanism (400) form an angle, and the power supply (500) is installed at the angle inside the housing (100) to make the housing (100) flat.

2. The miniature fascia gun according to claim 1, characterized in that, The eccentric wheel (300) is provided with an eccentric frustum (310), and the central axis of the eccentric frustum (310) is offset from the 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 frustum (310), so that the output shaft (210) of the motor (200) can extend into the eccentric frustum (310).

3. The miniature fascia gun according to claim 2, characterized in that, One end of the transmission rod (410) is provided with a circular groove (411), and one end of the transmission rod (410) is sleeved on the outside of the eccentric frustum (310) through the circular groove (411). A bearing (412) is provided between the eccentric frustum (310) and the transmission rod (410).

4. The miniature fascia gun according to claim 3, characterized in that, The motor (200) is an external rotor motor, and the motor (200) is installed in the housing (100) by means of a fixing plate (220); The maximum radius r of the outer wall of the circular groove (411), the eccentricity d of the eccentric frustum (310), and the radius R of the fixed disk (220); Wherein, the sum of the maximum radius r of the outer wall of the circular groove (411) and the eccentricity d of the eccentric frustum (310) is less than the radius R of the fixed disk (220), so that the outer diameter of the circumferential displacement trajectory of the transmission rod (410) is less than the outer diameter of the fixed disk (220).

5. The miniature fascia gun according to claim 4, characterized in that, The outer wall of the fixed disk (220) is provided with a first shock-absorbing pad (221), which is located between the fixed disk (220) and the housing (100).

6. The miniature fascia gun according to claim 1, characterized in that, The hinge point between the transmission rod (410) and the sleeve (420) is located inside the sleeve (420).

7. The miniature fascia gun according to claim 6, characterized in that, The sleeve (420) has a positioning hole (421) on its side wall, and the transmission rod (410) has a through hole (413). The positioning hole (421) and the through hole (413) are provided with pins (430) to realize the hinge connection between the transmission rod (410) and the sleeve (420).

8. The miniature fascia gun according to claim 7, characterized in that, A bushing (440) is provided between the transmission rod (410) and the sleeve (420), and the bushing (440) is in close contact with the inner wall of the sleeve (420); The bushing (440) extends into the through hole (413) and is located between the inner wall of the through hole (413) and the pin (430).

9. The miniature fascia gun according to claim 6, characterized in that, The housing (100) is provided with a sliding bushing (450), the sleeve (420) is located inside the sliding bushing (450), and a silicone sleeve (451) is provided between the sliding bushing (450) and the housing (100).

10. The miniature fascia gun according to claim 1, characterized in that, It also includes a control board (600), which is located above the transmission mechanism (400) and is equipped with control buttons (610) and power indicator lights (620).

Images