Reciprocating driving mechanism and fascia gun

Abstract

The invention discloses a reciprocating driving mechanism and a fascia gun, and relates to the technical field of transmission mechanisms. The reciprocating driving mechanism comprises a coil assembly and a moving assembly. The coil assembly comprises a coil support and a coil, and the coil support is sleeved with the coil. The coil support is used for being connected with the supporting base. The moving assembly comprises a guide part, an output assembly and a magnetic part; the guiding piece is used for being connected with the supporting base. The output assembly is slidably connected to the guiding piece in the first direction. The magnetic member is connected to the output assembly and is arranged opposite to the coil. The magnetic piece can drive the output assembly to move in a reciprocating mode in the first direction under the condition that the coil is powered on. The reciprocating driving mechanism directly drives the output assembly to do reciprocating motion through magnetic field coupling of the coil and the magnetic piece, an intermediate transmission part in a traditional scheme is omitted, and the advantages of being simple in structure, low in manufacturing cost and silent and stable in operation are achieved.

Description

Technical Field

[0001] This application relates to the technical field of transmission mechanisms, and more particularly to a reciprocating drive mechanism and a fascia gun. Background Technology

[0002] A fascia gun, also known as a deep myofascial release device, is a soft tissue massage tool that relaxes the body's soft tissues through high-frequency impacts. Fascia guns are widely used in fitness training, sports rehabilitation, and everyday muscle soreness relief.

[0003] Fascia guns in related technologies typically include multiple components such as a motor assembly, an eccentric wheel, bearings, a connecting rod assembly, a shaft, a copper sleeve, and a massage head. The motor assembly drives the eccentric wheel to rotate, which in turn drives the connecting rod assembly to move, and the connecting rod assembly ultimately drives the massage head to reciprocate. The structure of a fascia gun is relatively complex. Summary of the Invention

[0004] Based on this, this application provides a reciprocating drive mechanism and a fascia gun to solve the problem of the complex structure of fascia guns in related technologies.

[0005] In a first aspect, embodiments of this application provide a reciprocating drive mechanism, including:

[0006] A coil assembly includes a coil support and a coil, the coil being sleeved on the coil support; the coil support is used to connect to a support base.

[0007] A movable component includes a guide, an output component, and a magnetic component; the guide is used to connect to the support base, and the output component is slidably connected to the guide along a first direction; the magnetic component is connected to the output component and is disposed opposite to the coil.

[0008] The magnetic component, when the coil is energized, can drive the output component to reciprocate along the first direction.

[0009] In some embodiments, the moving component further includes:

[0010] A reset element is connected to the output component and the coil support. When the coil is de-energized, the reset element drives the output component to reset.

[0011] In some embodiments, the reset element includes:

[0012] The first connecting part is connected to the coil support;

[0013] The second connection part is connected to the output component;

[0014] The elastic part is elastic and is connected to the first connecting part and the second connecting part.

[0015] In some embodiments, a plurality of reset elements are provided, and the plurality of reset elements are respectively located on both sides of the output component along a second direction, the second direction being perpendicular to the first direction.

[0016] In some embodiments, the coil assembly further includes:

[0017] A magnetic focusing assembly is arranged around the coil.

[0018] In some embodiments, the magnetic focusing assembly includes:

[0019] A first magnetic focusing element has a receiving groove, and the coil is located in the receiving groove;

[0020] The second and third magnetic focusing elements are respectively disposed on both sides of the coil along the first direction.

[0021] In some embodiments, the coil support includes:

[0022] The first support portion, wherein the coil is sleeved outside the first support portion;

[0023] The second support portion and the third support portion are respectively connected to both sides of the first support portion along the first direction; the second magnetic focusing element and the third magnetic focusing element are respectively disposed on the second support portion and the third support portion.

[0024] In some embodiments, the first magnetic focusing element includes:

[0025] bottom;

[0026] The first side portion and the second side portion are arranged opposite to each other along the first direction and are both connected to the bottom; along the third direction, the first side portion and the second magnetic gathering member are respectively located on both sides of the second support portion, and the second side portion and the third magnetic gathering member are respectively located on both sides of the third support portion;

[0027] The third and fourth sides, along the second direction, are respectively located on both sides of the first support and are arranged opposite to each other; the bottom, the first side, the second side, the third side, and the fourth side together form the receiving groove, and at least one of the bottom, the first side, the second side, the third side, and the fourth side is connected to the coil bracket; the first direction, the second direction, and the third direction are perpendicular to each other.

[0028] In some embodiments, the guide includes:

[0029] The first damping sleeve is used to connect with the support base;

[0030] A guide sleeve is disposed inside the first damping sleeve and connected to the first damping sleeve, and the output component is disposed inside the guide sleeve and slidably connected to the guide sleeve.

[0031] In some embodiments, an oil reservoir is provided on the inner wall of the first damping sleeve.

[0032] In some embodiments, the coil support has a connecting protrusion, and the coil assembly further includes a second damping sleeve sleeved over the connecting protrusion;

[0033] A connecting groove is provided on the support base in the area opposite to the connecting protrusion, the connecting protrusion is located in the connecting groove, and the second damping sleeve is located between the connecting groove and the connecting protrusion.

[0034] In some embodiments, the output component includes:

[0035] A support member has a mounting groove; the magnetic element is located within the mounting groove.

[0036] A protective component, located within the mounting groove, covers the magnetic component and is connected to the support component;

[0037] The output component is connected to the support component and slidably connected to the guide component along the first direction.

[0038] Secondly, embodiments of this application provide a fascia gun, comprising:

[0039] The reciprocating drive mechanism described in the first aspect;

[0040] The housing is a support base, and the housing has a mounting cavity and a clearance through hole communicating with the mounting cavity; the reciprocating drive mechanism is located in the mounting cavity, and the coil bracket and guide of the reciprocating drive mechanism are both connected to the housing, and the output end of the output component of the reciprocating drive mechanism extends out through the clearance through hole.

[0041] In some embodiments, the housing includes:

[0042] The first half-shell and the second half-shell are detachably connected, and the first half-shell and the second half-shell together form the mounting cavity and the clearance through hole.

[0043] This application has at least the following beneficial effects:

[0044] The reciprocating drive mechanism provided in this application includes a coil assembly and a moving assembly. The coil assembly includes a coil support and a coil, and the moving assembly includes a guide, an output assembly, and a magnetic component. Since the magnetic component is positioned opposite to the coil and connected to the output assembly, and the output assembly is slidably connected to the guide along a first direction, when the coil is energized and generates a periodically changing magnetic field, the magnetic component and the output assembly will reciprocate along the first direction under the influence of the magnetic force. Traditional reciprocating drive mechanisms require the cooperation of multiple components such as a motor assembly, eccentric wheel, bearings, connecting rod assembly, shaft, and copper sleeve to achieve motion conversion. This application, however, drives the output assembly to reciprocate by using a magnetic field generated by the coil to drive the magnetic component, eliminating intermediate transmission components such as eccentric wheels, connecting rods, and bearings. This results in fewer overall parts and a simpler structure. On the one hand, the reduced number of parts lowers material procurement costs; on the other hand, traditional structures require high-precision machining of components such as connecting rods and eccentric wheels to ensure transmission accuracy, while this application has no complex transmission requirements. The material selection and machining accuracy requirements for components such as coils, magnetic parts, and guides are lower, reducing production time and labor costs, ultimately lowering the manufacturing cost of the reciprocating drive mechanism. The noise of traditional reciprocating drive mechanisms mainly comes from mechanical contact friction between connecting rods and eccentric wheels, bearings and shafts, etc. This application directly drives the output component through electromagnetic force, eliminating rigid mechanical contact between the coil assembly and the moving assembly, thus preventing noise generated by contact friction. This reduces vibration and noise during the operation of the reciprocating drive mechanism, improving the user experience. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 This is a schematic diagram of the reciprocating drive mechanism in one or more embodiments of this application.

[0047] Figure 2 This is an exploded view of the reciprocating drive mechanism in one or more embodiments of this application.

[0048] Figure 3 This is an exploded view of the moving component of the reciprocating drive mechanism in one or more embodiments of this application.

[0049] Figure 4 This is a schematic diagram of the structure of the reset component of the reciprocating drive mechanism in one or more embodiments of this application.

[0050] Figure 5This is a schematic diagram of the coil assembly and magnetic focusing assembly of the reciprocating drive mechanism in one or more embodiments of this application.

[0051] Figure 6 This is an exploded view of the coil assembly of the reciprocating drive mechanism in one or more embodiments of this application.

[0052] Figure 7 This is an exploded view of the coil assembly and magnetic focusing assembly of the reciprocating drive mechanism in one or more embodiments of this application.

[0053] Figure 8 This is a top view of the moving component of the reciprocating drive mechanism in one or more embodiments of this application.

[0054] Figure 9 For along Figure 8 A cross-sectional view along the AA direction.

[0055] Figure 10 This is a schematic diagram of the fascia gun in one or more embodiments of this application.

[0056] Figure 11 This is an explosion diagram of a fascia gun in one or more embodiments of this application.

[0057] Explanation of reference numerals in the attached figures:

[0058] 1000-Fascia gun, 10-Support base, 10a-Connecting groove, 100-Reciprocating drive mechanism, 110-Coil assembly, 111-Coil bracket, 1111-First support part, 1112-Second support part, 1113-Third support part, 1114-Connecting protrusion, 112-Coil, 113-Second damping sleeve, 120-Moving assembly, 121-Guide, 121a-Oil reservoir, 1211-First damping sleeve, 1212-Guide sleeve, 122-Output assembly, 122a-Mounting groove, 1221-Support, 1222-Protective part, 1223-Output part, 123- Magnetic component, 124-Reset component, 1241-First connecting part, 1242-Second connecting part, 1243-Elastic part, 130-Magnetic focusing assembly, 131-First magnetic focusing component, 131a-Receiving groove, 1311-Bottom, 1312-First side, 1313-Second side, 1314-Third side, 1315-Fourth side, 132-Second magnetic focusing component, 133-Third magnetic focusing component, 200-Housing, 210-First half-shell, 220-Second half-shell, 200a-Mounting cavity, 200b-Avoidance through hole, 300-Control switch, 400-Power module, 500-Controller. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0060] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0061] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0062] The terms “first,” “second,” and “third” (if any) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0063] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or display that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or display.

[0064] A fascia gun, also known as a deep myofascial release device, is a soft tissue massage tool that relaxes the body's soft tissues through high-frequency impacts. Fascia guns are widely used in fitness training, sports rehabilitation, and everyday muscle soreness relief.

[0065] Fascia guns, as used in related technologies, typically consist of multiple components including a motor assembly, an eccentric wheel, bearings, a connecting rod assembly, a shaft, a copper sleeve, and a massage head. The motor assembly drives the eccentric wheel to rotate, which in turn drives the connecting rod assembly, ultimately causing the massage head to reciprocate. The structure of a fascia gun is relatively complex. This complexity places high demands on the material selection, machining precision, and production yield of each component, resulting in higher manufacturing costs. Furthermore, the mechanical contact between components during the conversion of the motor's circular motion into linear motion via the connecting rod mechanism generates noticeable frictional noise, negatively impacting the user experience.

[0066] In view of this, the inventors designed a reciprocating drive mechanism and a fascia gun. The reciprocating drive mechanism directly drives the output component to reciprocate through the magnetic field coupling between the coil and the magnetic component, eliminating the intermediate transmission components in the traditional solution. It has the advantages of simple structure, low manufacturing cost and quiet and stable operation.

[0067] The reciprocating drive mechanism and fascia gun provided in the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0068] In the attached diagram, X represents the first direction, Y represents the second direction, and Z represents the third direction. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0069] like Figure 1 , Figure 2 and Figure 3 As shown, the reciprocating drive mechanism 100 includes a coil assembly 110 and a moving assembly 120. The coil assembly 110 includes a coil support 111 and a coil 112, with the coil 112 sleeved outside the coil support 111; the coil support 111 is used to connect to the support base 10. The moving assembly 120 includes a guide 121, an output assembly 122, and a magnetic component 123; the guide 121 is used to connect to the support base 10, and the output assembly 122 is slidably connected to the guide 121 along a first direction X; the magnetic component 123 is connected to the output assembly 122 and is arranged opposite to the coil 112. When the coil 112 is energized, the magnetic component 123 can drive the output assembly 122 to reciprocate along the first direction X.

[0070] The reciprocating drive mechanism 100 provided in this application can be applied to the fascia gun 1000, as well as other equipment, such as reciprocating impact tools, vibration fitness equipment, linear drive actuators, etc. The specific application scenario of the reciprocating drive mechanism 100 is not limited in this application. Figure 10 As shown, when the reciprocating drive mechanism 100 is applied to the fascia gun 1000, the support base 10 can be the housing 200 of the fascia gun 1000.

[0071] The coil bracket 111 is used to fix it to the support base 10. The coil 112 is sleeved on the outside of the coil bracket 111. The coil bracket 111 supports and limits the coil 112. When the reciprocating drive mechanism 100 is in use, the coil 112 needs to be electrically connected to an external power source. After the coil 112 is energized, it can generate an alternating magnetic field to provide driving force for the moving component 120.

[0072] The guide member 121 is used to connect with the support base 10. The output component 122 is slidably connected to the guide member 121 along the first direction X. The guide member 121 limits the output component 122, so that the output component 122 can only reciprocate along the first direction X. The magnetic component 123 is fixedly connected to the output component 122 and is arranged opposite to the coil 112. The magnetic component 123 is magnetic. When the coil 112 is energized, the coil 112 generates a magnetic field with a periodically changing direction. The magnetic component 123 will reciprocate along the first direction X under the action of the magnetic force, thereby driving the output component 122 to reciprocate synchronously along the first direction X. When the reciprocating drive mechanism 100 is applied to the fascia gun 1000, the massage head (not shown in the figure) of the fascia gun 1000 is installed on the output component 122, so that the massage head can be driven to reciprocate. When the massage head contacts the human body, it generates high-frequency vibration that acts on the deep muscles, thereby reducing local tissue tension, relieving pain, and promoting blood circulation. Magnetic component 123 can be a permanent magnet, permanent magnet body or other magnetic device.

[0073] It is understandable that the coil 112 can generate a periodically changing magnetic field by controlling the direction of the current to change periodically; and the vibration frequency and striking intensity of the output component 122 can be controlled by controlling the magnitude and frequency of the current in the coil 112.

[0074] The reciprocating drive mechanism 100 provided in this application includes a coil assembly 110 and a moving assembly 120. The coil assembly 110 includes a coil support 111 and a coil 112. The moving assembly 120 includes a guide 121, an output assembly 122, and a magnetic component 123. Since the magnetic component 123 is arranged opposite to the coil 112 and is connected to the output assembly 122, and the output assembly 122 is slidably connected to the guide 121 along the first direction X, when the coil 112 is energized and generates a magnetic field with a periodically changing direction, the magnetic component 123 and the output assembly 122 will reciprocate along the first direction X under the action of the magnetic force. Traditional reciprocating drive mechanisms require the cooperation of multiple components such as a motor assembly, eccentric wheel, bearing, connecting rod assembly, shaft, and copper sleeve to achieve motion conversion. However, this application drives the output assembly 122 to reciprocate by generating a magnetic field from the coil 112 to drive the magnetic component 123, eliminating intermediate transmission components such as eccentric wheel, connecting rod, and bearing. The overall number of parts is smaller, and the structure is simpler. On the one hand, the reduced number of parts lowers material procurement costs; on the other hand, traditional structures require high-precision machining of components such as connecting rods and eccentric wheels to ensure transmission accuracy, while this application has no complex transmission requirements. The material selection and machining accuracy requirements for components such as coil 112, magnetic component 123, and guide component 121 are lower, reducing production time and labor costs, ultimately reducing the manufacturing cost of the reciprocating drive mechanism 100. The noise of traditional reciprocating drive mechanisms mainly comes from the mechanical contact friction between components such as connecting rods and eccentric wheels, and bearings and shafts. However, this application directly drives the output component 122 to move through electromagnetic force. There is no rigid mechanical contact between the coil component 110 and the moving component 120, and there is no noise generated by contact friction between them, reducing vibration and noise during the operation of the reciprocating drive mechanism 100 and improving the user experience.

[0075] like Figure 2 , Figure 3 and Figure 6 As shown, in some embodiments, the coil 112 is tubular with an elliptical or circular cross-section, and the axial direction of the coil 112 is parallel to the first direction X; along the third direction Z, the coil 112 and the magnetic element 123 are opposite each other.

[0076] like Figure 3 As shown, in some embodiments, the magnetic element 123 is cuboid in shape and perpendicular to the third direction Z.

[0077] like Figure 2 and Figure 3 As shown, in some embodiments, the moving component 120 further includes a reset member 124, which is connected to the output component 122 and the coil support 111. When the coil 112 is de-energized, the reset member 124 drives the output component 122 to reset.

[0078] The reset element 124 stores elastic potential energy through its own deformation. When the coil 112 is energized and drives the output component 122 to move along the first direction X, the output component 122 applies a force to the reset element 124, causing the reset element 124 to undergo elastic deformation and store potential energy. When the coil 112 is de-energized, the reset element 124 is no longer subject to the force of the output component 122, thereby releasing the elastic potential energy and driving the output component 122 to move back to its initial position. The structure of the reset element 124 is diverse and can be a spring, elastic rubber, elastic metal sheet, etc., which is not limited in this application.

[0079] This design serves two purposes: firstly, it prevents the output component 122 and its magnetic component 123 from becoming uncontrolled due to the loss of magnetic field constraint when the coil 112 is de-energized, thus preventing collision damage between the output component 122 and other components and extending the service life of the reciprocating drive mechanism 100; secondly, the reset component 124 can reset the output component 122 and the magnetic component 123 to a position where the magnetic component 123 is sufficiently coupled to the magnetic field of the coil 112 and the magnetic force is strong, so that when the reciprocating drive mechanism 100 is started next time, there is no need to additionally calibrate the position of the magnetic component 123 and the coil 112, allowing the magnetic force to act efficiently on the magnetic component 123, thereby improving the response speed of the reciprocating drive mechanism 100 when it starts; at the same time, a unified initial position helps to ensure the consistency of the stroke of the output component 122 in each reciprocating motion, avoiding the decrease in motion accuracy caused by the initial position offset, and improving the working stability of the reciprocating drive mechanism 100.

[0080] like Figure 4 As shown, in some embodiments, the reset member 124 includes a first connecting portion 1241, a second connecting portion 1242, and an elastic portion 1243. The first connecting portion 1241 is connected to the coil support 111, the second connecting portion 1242 is connected to the output assembly 122, and the elastic portion 1243 is elastic and connected to the first connecting portion 1241 and the second connecting portion 1242.

[0081] The first connecting part 1241 is fixedly connected to the coil support 111, the second connecting part 1242 is fixedly connected to the output component 122, and the elastic part 1243 is located between the first connecting part 1241 and the second connecting part 1242. One end of the elastic part 1243 is fixedly connected to the first connecting part 1241, and the other end is fixedly connected to the second connecting part 1242. The fixing method can be various, such as bonding, welding, or snap-fitting. The elastic part 1243 is elastic and can be made of elastic rubber, elastic metal sheet, etc. The elastic part 1243 stores elastic potential energy through its own deformation. When the coil 112 is de-energized, it releases the elastic potential energy to reset the output component 122.

[0082] These embodiments divide the reset member 124 into a first connecting portion 1241, a second connecting portion 1242, and an elastic portion 1243, allowing each part to be processed independently before being connected to form the reset member 124. This helps reduce the overall processing difficulty of the reset member 124. Furthermore, each part performs a different function; for example, the first connecting portion 1241 and the second connecting portion 1242 respectively function to fix the coil support 111 and the output assembly 122, while the elastic portion 1243 functions to reset the coil support 111 and the output assembly 122. The parts 1242 and 1243 can be made of different materials according to their respective functions, without the need for a uniform material for the whole, which helps to reduce the manufacturing cost of the reset part 124. In addition, the elastic part 1243 is prone to elastic fatigue or damage due to long-term repeated deformation. Under the condition that the elastic part 1243 can be detachably connected to the first connecting part 1241 and the second connecting part 1242, when the elastic part 1243 suffers elastic fatigue or damage, only the elastic part 1243 needs to be replaced, without replacing the entire reset part 124, which helps to reduce maintenance costs.

[0083] In some embodiments, the first connecting portion 1241, the second connecting portion 1242, and the elastic portion 1243 are integrally formed. The integral forming method is varied, such as stamping, die casting, injection molding, etc., and is not limited in this application. The integral forming of the first connecting portion 1241, the second connecting portion 1242, and the elastic portion 1243 eliminates the need for a connection process between them, which helps improve the production efficiency of the reset component 124 and reduce assembly costs.

[0084] In some embodiments, the reset member 124 is made of spring steel. Spring steel has excellent elastic recovery performance, high strength and fatigue resistance, and can withstand high-frequency elastic deformation for a long time without easily failing, which helps to extend the service life of the reset member 124; the stable elastic coefficient of spring steel can make the elastic force generated by the elastic part 1243 tend to be consistent in each deformation and reset process, thereby ensuring the reset accuracy of the output component 122 and the magnetic component 123.

[0085] like Figure 2 As shown, in some embodiments, multiple reset members 124 are provided, and the multiple reset members 124 are respectively located on both sides of the output component 122 along the second direction Y, the second direction Y being perpendicular to the first direction X.

[0086] Some reset elements 124 are disposed on one side of the output component 122 along the second direction Y, and others are disposed on the other side of the output component 122 along the second direction Y. The multiple reset elements 124 arranged on both sides of the output component 122 along the second direction Y result in a more balanced force distribution on both sides of the output component 122 in the second direction Y. This helps reduce tilting or jamming of the output component 122 during reciprocating motion along the first direction X, thereby improving the smoothness and speed of the output component 122's reset.

[0087] like Figure 2 As shown, in some embodiments, four reset members 124 are provided, and two reset members 124 are provided on each side of the output component 122 along the second direction Y.

[0088] In some embodiments, when the coil 112 is de-energized, the length direction of the elastic portion 1243 is set at an acute angle to the first direction X. When the output component 122 moves forward along the first direction X, the elastic portion 1243 undergoes bending deformation due to the pull of the output component 122, and stores elastic potential energy; when the output component 122 moves backward along the first direction X, the elastic portion 1243 releases the stored elastic potential energy and gradually returns to a flat state.

[0089] like Figure 1 and Figure 2 As shown, in some embodiments, the coil assembly 110 further includes a magnetic focusing assembly 130, which is disposed around the coil 112.

[0090] The magnetic focusing component 130 is used to converge the magnetic field generated by the coil 112, which helps to enhance the magnetic field strength in the area where the magnetic component 123 is located. Specifically, the magnetic force is positively correlated with the magnetic field strength; a stronger magnetic field can result in a greater driving force on the magnetic component 123, thereby allowing the output component 122 to obtain a greater reciprocating thrust, which is suitable for the use of the fascia gun 1000 to massage thick muscle groups. The magnetic focusing component 130 can be made of high permeability materials such as silicon steel sheets, ferrite, or neodymium iron boron, and its specific material is not limited in this application.

[0091] like Figure 5 As shown, in some embodiments, the magnetic focusing assembly 130 includes a first magnetic focusing element 131, a second magnetic focusing element 132, and a third magnetic focusing element 133. The first magnetic focusing element 131 has a receiving groove 131a, in which the coil 112 is located. The second magnetic focusing element 132 and the third magnetic focusing element 133 are respectively disposed on both sides of the coil 112 along a first direction X.

[0092] The first magnetic focusing element 131, the second magnetic focusing element 132, and the third magnetic focusing element 133 can be made of high magnetic permeability materials such as silicon steel sheets, ferrite, or neodymium iron boron. Their specific materials are not limited in this application.

[0093] The first magnetic focusing element 131 forms a receiving groove 131a, and the coil 112 is disposed within the receiving groove 131a. The first magnetic focusing element 131 can reduce the leakage of magnetic field from the front, rear, left, right, and lower regions of the coil 112. The second magnetic focusing element 132 and the third magnetic focusing element 133 are respectively disposed on both sides of the coil 112 along the first direction X, which can further reduce the leakage of magnetic field from the front and rear regions of the coil 112. The first magnetic focusing element 131, the second magnetic focusing element 132, and the third magnetic focusing element 133 together form a relatively enclosed magnetic field converging space, so that the magnetic field generated by the coil 112 can be concentrated on the region where the magnetic element 123 is located, which helps the output component 122 to obtain greater thrust.

[0094] like Figure 6 and Figure 7 As shown, in some embodiments, the coil support 111 includes a first support portion 1111, a second support portion 1112, and a third support portion 1113. The coil 112 is sleeved on the outside of the first support portion 1111. The second support portion 1112 and the third support portion 1113 are respectively connected to both sides of the first support portion 1111 along a first direction X. The second magnetic focusing element 132 and the third magnetic focusing element 133 are respectively disposed on the second support portion 1112 and the third support portion 1113.

[0095] The second magnetic focusing element 132 is disposed on the second support portion 1112, which supports and fixes the second magnetic focusing element 132. The third magnetic focusing element 133 is disposed on the third support portion 1113, which supports and fixes the third magnetic focusing element 133. With this design, the coil bracket 111 forms an integrated support structure through the first support portion 1111, the second support portion 1112, and the third support portion 1113. The installation of the coil 112 and the support and fixing functions of the second magnetic focusing element 132 and the third magnetic focusing element 133 are all integrated into the coil bracket 111. The reciprocating drive mechanism 100 does not need to design a separate support component for the magnetic focusing element, which helps to reduce the number of parts in the reciprocating drive mechanism 100, simplify the overall structure of the reciprocating drive mechanism 100, and thus reduce its assembly complexity and manufacturing cost.

[0096] In some embodiments, the first support portion 1111, the second support portion 1112, and the third support portion 1113 are all plate-shaped. The length direction of the first support portion 1111 is parallel to the first direction X, and the length directions of the second support portion 1112 and the third support portion 1113 are parallel to the second direction Y. After the first support portion 1111, the second support portion 1112, and the third support portion 1113 are connected, the whole is I-shaped.

[0097] like Figure 7As shown, in some embodiments, the first magnetic focusing member 131 includes a bottom 1311, a first side portion 1312, a second side portion 1313, a third side portion 1314, and a fourth side portion 1315. The first side portion 1312 and the second side portion 1313 are arranged opposite to each other along a first direction X and are both connected to the bottom 1311. Along a third direction Z, the first side portion 1312 and the second magnetic focusing member 132 are respectively located on both sides of the second support portion 1112, and the second side portion 1313 and the third magnetic focusing member 133 are respectively located on both sides of the third support portion 1113. Along a second direction Y, the third side portion 1314 and the fourth side portion 1315 are respectively located on both sides of the first support portion 1111 and are arranged opposite to each other. The bottom 1311, the first side 1312, the second side 1313, the third side 1314, and the fourth side 1315 together form a receiving groove 131a, and at least one of the bottom 1311, the first side 1312, the second side 1313, the third side 1314, and the fourth side 1315 is fixedly connected to the coil support 111. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0098] After this design, as Figure 7 As shown, the first side portion 1312 is located below the second support portion 1112, and the second magnetic focusing element 132 is located above the second support portion 1112. Both the first side portion 1312 and the second magnetic focusing element 132 are located in front of the coil 112. The second side portion 1313 is located below the third support portion 1113, and the third magnetic focusing element 133 is located above the third support portion 1113. Both the second side portion 1313 and the third magnetic focusing element 133 are located behind the coil 112. The third side portion 1314 is located on the left side of the coil 112, and the fourth side portion 1315 is located on the right side of the coil 112. The bottom portion 1311 is located below the coil 112, and the magnetic element 123 is located above the coil 112. The first side portion 1312 and the second magnetic focusing element 132 reduce the leakage of the magnetic field from the front of the coil 112; the second side portion 1313 and the third magnetic focusing element 133 reduce the leakage of the magnetic field from the rear of the coil 112; the third side portion 1314 reduces the leakage of the magnetic field from the left side of the coil 112; the fourth side portion 1315 reduces the leakage of the magnetic field from the right side of the coil 112; and the bottom portion 1311 reduces the leakage of the magnetic field from the bottom of the coil 112. Ultimately, this concentrates the magnetic field generated by the coil 112 onto the upper side of the coil 112, thereby acting on the magnetic element 123 on the upper side of the coil 112, which helps the output assembly 122 obtain greater thrust. Furthermore, the bottom portion 1311, the first side portion 1312, the second side portion 1313, the third side portion 1314, and the fourth side portion 1315 together form a closed receiving groove 131a, which protects the coil 112 and prevents external impurities from affecting its operation.

[0099] At least one of the bottom 1311, the first side 1312, the second side 1313, the third side 1314, and the fourth side 1315 is fixedly connected to the coil support 111, so that the first magnetic gathering element 131 can be fixed to the coil support 111. The fixed connection can be made in various ways, such as adhesive bonding or snap-fitting.

[0100] In some embodiments, the bottom 1311, the first side 1312, the second side 1313, the third side 1314, and the fourth side 1315 are all plate-like structures, with the bottom 1311 perpendicular to the third direction Z, the first side 1312 and the second side 1313 both perpendicular to the first direction X, and the third side 1314 and the fourth side 1315 both perpendicular to the second direction Y.

[0101] like Figure 3 , Figure 8 and Figure 9 As shown, in some embodiments, the guide 121 includes a first damping sleeve 1211 and a guide sleeve 1212. The first damping sleeve 1211 is used to connect with the support base 10; the guide sleeve 1212 is disposed inside the first damping sleeve 1211 and connected to the first damping sleeve 1211, and the output component 122 is disposed inside the guide sleeve 1212 and slidably connected to the guide sleeve 1212.

[0102] The first damping sleeve 1211 is used to connect with the support base 10 and can be made of elastic materials such as rubber or silicone. It can absorb the vibration of the output component 122 during movement, thus playing a role in vibration reduction and noise reduction. The guide sleeve 1212 is disposed inside the first damping sleeve 1211 and is fixedly connected to the first damping sleeve 1211. The guide sleeve 1212 can be made of materials such as metal or hard plastic. With this design, the guide sleeve 1212 ensures guiding accuracy, and the first damping sleeve 1211 provides vibration damping and buffering. The two work together to ensure the smooth movement of the output component 122 and help reduce noise.

[0103] In some embodiments, the guide sleeve 1212 is made of copper.

[0104] In some embodiments, an oil reservoir 121a is provided on the inner wall of the first damping sleeve 1211.

[0105] The oil reservoir 121a can store lubricating oil, which is used to lubricate the output component 122 and the guide sleeve 1212, reducing the sliding friction between the output component 122 and the guide sleeve 1212, reducing wear and improving the smoothness of movement, while also reducing friction noise.

[0106] like Figure 7 and Figure 11As shown, in some embodiments, the coil support 111 has a connecting protrusion 1114, and the coil assembly 110 further includes a second damping sleeve 113 sleeved on the connecting protrusion 1114; a connecting groove 10a is provided on the support base 10 in the area opposite to the connecting protrusion 1114, the connecting protrusion 1114 is located in the connecting groove 10a, and the second damping sleeve 113 is located between the connecting groove 10a and the connecting protrusion 1114.

[0107] The second damping sleeve 113 can be made of elastic materials such as rubber and silicone. The second damping sleeve 113 can absorb the vibration generated when the coil assembly 110 is working, prevent the vibration from being transmitted to the support seat 10, improve the vibration reduction and noise reduction effect of the reciprocating drive mechanism 100, and improve the user experience.

[0108] In some embodiments, the coil support 111 has four connecting protrusions 1114, and the coil assembly 110 includes four second damping sleeves 113, which are arranged in a one-to-one correspondence with the connecting protrusions 1114. Specifically, the second support portion 1112 has one connecting protrusion 1114 on each side along the second direction Y, and the third support portion 1113 has one connecting protrusion 1114 on each side along the second direction Y.

[0109] In some embodiments, the connecting protrusion 1114 and the support base 10 are fixedly connected by bolts.

[0110] like Figure 3 As shown, in some embodiments, the output component 122 includes a support member 1221, a protective member 1222, and an output member 1223. The support member 1221 has a mounting groove 122a; the magnetic member 123 is located within the mounting groove 122a; the protective member 1222 is located within the mounting groove 122a, covers the magnetic member 123, and is connected to the support member 1221. The output member 1223 is connected to the support member 1221 and is slidably connected to the guide member 121 along a first direction X.

[0111] The shape and size of the mounting groove 122a are adapted to the shape and size of the magnetic component 123. The magnetic component 123 is confined within the mounting groove 122a of the support component 1221. The protective component 1222 covers the magnetic component 123 and is connected to the support component 1221, forming a closed protective space with the support component 1221. This prevents the magnetic component 123 from being impacted during high-frequency reciprocating motion, while also isolating it from dust, impurities, etc., preventing the performance of the magnetic component 123 from degrading, extending the life of the magnetic component 123, and thus extending the service life of the reciprocating drive mechanism 100.

[0112] In some embodiments, the output member 1223 is cylindrical and parallel to the first direction X.

[0113] like Figure 10 and Figure 11As shown, based on the same inventive concept, this application also provides a fascia gun 1000, including a reciprocating drive mechanism 100 and a housing 200 as described in any of the above embodiments. The housing 200 is a support base 10, and has a mounting cavity 200a and a clearance through hole 200b communicating with the mounting cavity 200a. The reciprocating drive mechanism 100 is located in the mounting cavity 200a, and the coil bracket 111 and guide member 121 of the reciprocating drive mechanism 100 are both connected to the housing 200. The output end of the output component 122 extends out through the clearance through hole 200b.

[0114] The reciprocating drive mechanism 100 is located inside the housing 200, and the housing 200 supports and protects the internal reciprocating drive mechanism 100. Since the fascia gun 1000 adopts the aforementioned reciprocating drive mechanism 100, it naturally possesses all the beneficial effects of the reciprocating drive mechanism 100, which will not be elaborated here.

[0115] In an embodiment where the output component 122 includes an output member 1223, the end of the output member 1223 away from the support member 1221 is the output end, which extends out of the housing 200 through the avoidance through hole 200b.

[0116] In some embodiments, the fascia gun 1000 further includes a massage head, which is mounted on the end of the output member 1223 away from the support member 1221. The massage head is mounted on the output member 1223 and performs high-frequency reciprocating motion with the output member 1223 to achieve impact massage of the muscles.

[0117] In some embodiments, the first damping sleeve 1211 of the guide member 121 is fixedly disposed within the clearance through hole 200b.

[0118] In some embodiments, the housing 200 includes a first half-shell 210 and a second half-shell 220, which are detachably connected and together form an installation cavity 200a and a clearance through hole 200b.

[0119] The detachable connection methods are varied, such as snap-fit ​​and bolt connection. The detachable connection between the first half-shell 210 and the second half-shell 220 facilitates the assembly, maintenance, and replacement of the reciprocating drive mechanism 100, improving production efficiency and ease of use.

[0120] In some embodiments, the fascia gun 1000 further includes a control switch 300, a power module 400, and a controller 500. The power module 400 is electrically connected to both the controller 500 and the coil 112 of the reciprocating drive mechanism 100. The control switch 300 is electrically connected to the controller 500. The power module 400 provides electrical energy to the coil 112. The control module can adjust the current frequency and amplitude of the coil 112, thereby adjusting the reciprocating frequency and amplitude of the output component 122 to adapt to different massage scenarios and user needs. Users can control the control switch 300 to turn the fascia gun 1000 on and off, and adjust the amplitude, etc. The structure and specific connection relationships of the control switch 300, the power module 400, and the controller 500 are known to those skilled in the art and will not be described in detail here.

[0121] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A reciprocating drive mechanism characterized by, The application relates to a coil assembly (110) comprising a coil support (111) and a coil (112), the coil (112) being sleeved outside the coil support (111); the coil support (111) is used for being connected with a support base (10); a moving assembly (120) comprising a guide piece (121), an output assembly (122) and a magnetic piece (123); the guide piece (121) is used for being connected with the support base (10), the output assembly (122) is slidably connected with the guide piece (121) along a first direction; the magnetic piece (123) is connected with the output assembly (122) and oppositely arranged with the coil (112); wherein the magnetic piece (123) can drive the output assembly (122) to reciprocally move along the first direction under the condition that the coil (112) is powered. The moving assembly (120) further comprises a reset piece (124) connected with the output assembly (122) and the coil support (111), the reset piece (124) drives the output assembly (122) to reset under the condition that the coil (112) is powered off. The reset piece (124) comprises a first connecting part (1241) connected with the coil support (111), a second connecting part (1242) connected with the output assembly (122) and an elastic part (1243) having elasticity and connected with the first connecting part (1241) and the second connecting part (1242). The reset piece (124) is provided with a plurality of reset pieces (124), and the plurality of reset pieces (124) are respectively located on both sides of the output assembly (122) along a second direction, and the second direction is perpendicular to the first direction.

2. The reciprocating drive mechanism of claim 1, wherein, The coil assembly (110) further comprises a magnetic concentrating assembly (130) arranged around the coil (112). The magnetic concentrating assembly (130) comprises a first magnetic concentrating piece (131) having a containing groove (131a), the coil (112) is located in the containing groove (131a); a second magnetic concentrating piece (132) and a third magnetic concentrating piece (133) are respectively arranged on both sides of the coil (112) along the first direction.

3. The reciprocating drive mechanism of claim 2, wherein, The coil support (111) comprises a first support part (1111), the coil (112) is sleeved outside the first support part (1111); a second support part (1112) and a third support part (1113) are respectively connected with both sides of the first support part (1111) along the first direction; the second magnetic concentrating piece (132) and the third magnetic concentrating piece (133) are respectively arranged on the second support part (1112) and the third support part (1113). The first magnetic concentrating piece (131) comprises a bottom (1311). ​ ​ 4. The reciprocating drive mechanism of claim 3, wherein, ​ 5. A reciprocating drive mechanism according to any one of claims 1-4, characterized in that, ​ ​ 6. The reciprocating drive mechanism of claim 5, wherein, ​ ​ ​ 7. A reciprocating drive mechanism according to claim 6, wherein ​ ​ ​ 8. The reciprocating drive mechanism of claim 7, wherein, ​ ​ The first side portion (1312) and the second side portion (1313) are oppositely arranged along the first direction and are connected to the bottom portion (1311); along the third direction, the first side portion (1312) and the second magnetic concentrating member (132) are respectively located on two sides of the second support portion (1112), and the second side portion (1313) and the third magnetic concentrating member (133) are respectively located on two sides of the third support portion (1113); The third side portion (1314) and the fourth side portion (1315) are oppositely arranged along the second direction and are respectively located on two sides of the first support portion (1111); the bottom portion (1311), the first side portion (1312), the second side portion (1313), the third side portion (1314) and the fourth side portion (1315) jointly enclose the accommodating groove (131a), and at least one of the bottom portion (1311), the first side portion (1312), the second side portion (1313), the third side portion (1314) and the fourth side portion (1315) is connected to the coil support (111); the first direction, the second direction and the third direction are perpendicular to each other.

9. The reciprocating drive mechanism of any one of claims 1-4, wherein, The guide member (121) comprises: A first damping sleeve (1211) for being connected to the support seat (10); A guide sleeve (1212) arranged in the first damping sleeve (1211) and connected to the first damping sleeve (1211), and the output assembly (122) is arranged in the guide sleeve (1212) and is in sliding connection with the guide sleeve (1212).

10. The reciprocating drive mechanism of claim 9, wherein, An inner wall of the first damping sleeve (1211) is provided with an oil storage groove (121a).

11. The reciprocating drive mechanism of any one of claims 1-8, wherein, The coil support (111) has a connecting protrusion (1114), and the coil assembly (110) further comprises a second damping sleeve (113) sleeved outside the connecting protrusion (1114); An area of the support seat (10) opposite to the connecting protrusion (1114) is provided with a connecting groove (10a), the connecting protrusion (1114) is located in the connecting groove (10a), and the second damping sleeve (113) is located between the connecting groove (10a) and the connecting protrusion (1114).

12. The reciprocating drive mechanism of any one of claims 1-8, wherein, The output assembly (122) comprises: A support member (1221) having a mounting groove (122a), and the magnetic member (123) is located in the mounting groove (122a); A protection member (1222) located in the mounting groove (122a), covering the magnetic member (123) and connected to the support member (1221); An output member (1223) connected to the support member (1221) and in sliding connection with the guide member (121) along the first direction.

13. A fascia gun, characterized in that, The reciprocating driving mechanism (100) of any one of claims 1-12; The reciprocating driving mechanism (100) of any one of claims 1-12; A shell (200) is a support seat (10), the shell (200) has a mounting cavity (200a) and an avoiding through hole (200b) communicated with the mounting cavity (200a); the reciprocating driving mechanism (100) is located in the mounting cavity (200a), the coil support (111) and the guide (121) of the reciprocating driving mechanism (100) are connected with the shell (200), and the output end of the output assembly (122) of the reciprocating driving mechanism (100) extends out through the avoiding through hole (200b).

14. The fascia gun of claim 13, wherein, The shell (200) comprises: A first half shell (210) and a second half shell (220), the first half shell (210) and the second half shell (220) are detachably connected, the first half shell (210) and the second half shell (220) enclose the mounting cavity (200a) and the avoiding through hole (200b).

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