Massage unit and massage device

Abstract

This utility model relates to the field of massage device technology, and discloses a massage unit and a massage device. The massage unit includes: a motion rod assembly, a guide assembly, and a drive assembly; one end of the motion rod assembly forms a mating part and the other end forms a massage end, the mating part has a receiving space, and two opposing walls in the receiving space respectively form mating surfaces; the guide assembly is fixedly installed; the drive assembly includes a drive member and an eccentric wheel, the drive member has a rotatable drive shaft, and the eccentric wheel is installed in the receiving space and fixedly connected to the drive shaft. In this utility model, the eccentric wheel is installed in the receiving space of the mating part. When the eccentric wheel is driven to rotate by the drive member, the eccentric wheel contacts and pushes the mating surface, which enables the drive assembly to reciprocate along a first direction. There is no need to set an intermediate transmission rod, which not only simplifies the structure of the massage unit, but also avoids the use of connecting bearings, thereby avoiding noise generated by connecting bearings.

Description

Technical Field

[0001] This utility model relates to the field of massage device technology, specifically to a massage unit and a massage device. Background Technology

[0002] Human muscles are wrapped in a layer of fascia, which allows muscle fibers to contract in an orderly manner, achieving optimal functional performance. After exercise, muscles experience tension, lactic acid buildup, and oxygen deficiency. Especially after excessive exercise, the muscle fascia can expand or be compressed, causing soreness and discomfort. Since muscle recovery is relatively slow, using a fascia gun to massage the target muscles can effectively improve pain symptoms and promote muscle and soft tissue recovery.

[0003] Currently, existing fascia guns typically include a drive motor, a transmission arm, and a working rod. The working rod can move axially. One end of the transmission arm is eccentrically hinged to the drive shaft of the drive motor, and the other end is hinged to the working rod. The transmission arm drives the working rod to reciprocate through the eccentric drive of the drive shaft. This type of fascia gun has a problem of high noise because the bearing needs to be installed at the hinge position. The bearing rotation sound is obvious when it is working. Utility Model Content

[0004] In view of this, the present invention provides a massage unit and massage device to solve the problem of excessive noise generated by the bearings during the operation of existing fascia guns.

[0005] In a first aspect, this utility model provides a massage unit having a first vertical direction and a second vertical direction. The massage unit includes: a motion rod assembly, a guide assembly, and a drive assembly. The motion rod assembly is movable along the first direction. One end of the motion rod assembly along the first direction forms a mating part, and the other end forms a massage end. The mating part has a receiving space, and two opposing walls along the first direction in the receiving space respectively form mating surfaces. The guide assembly is fixedly installed and has a guide structure with a guide direction along the first direction. The guide structure guides and engages with the motion rod assembly. The drive assembly includes a drive member and an eccentric wheel. The drive member has a rotatable drive shaft that extends along the second direction. The eccentric wheel is installed in the receiving space and fixedly connected to the drive shaft. The eccentric wheel is driven to rotate by the drive member and pushes the mating surfaces, thereby driving the motion rod assembly to reciprocate along the first direction.

[0006] Beneficial effects: By placing the eccentric wheel in the receiving space of the mating part, since the receiving space has two mating surfaces arranged opposite each other along the first direction, when the eccentric wheel is driven to rotate by the driving component, the eccentric wheel contacts and pushes the mating surface, which enables the driving component to reciprocate along the first direction. There is no need to set up an intermediate transmission rod, which not only simplifies the structure of the massage unit and reduces the number of parts, but also avoids the use of connecting bearings, thereby avoiding the noise generated by connecting bearings and effectively solving the problem of excessive bearing noise when existing fascia guns are working.

[0007] In one alternative embodiment, the eccentric wheel includes a connecting portion and an elastic portion, the elastic portion being disposed around the edge of the connecting portion, and the connecting portion being fixedly connected to the drive shaft.

[0008] Beneficial effects: The eccentric wheel structure is simple and reliable. The connecting part contacts the mating surface through the elastic part, which can reduce the noise generated during contact and provide a buffer for contact. It can also make the impact process gentler while reducing noise. In addition, when the external load is too large and stall occurs, this type of eccentric wheel can deform to relieve the force and prevent the motor current from being too large and causing damage.

[0009] In one alternative implementation, the eccentric wheel has a polygonal structure, and the edges and corners of the eccentric wheel have arc-shaped contact surfaces.

[0010] Beneficial effects: This type of eccentric wheel requires less space to rotate, which can effectively improve the structural compactness of the massage unit. In addition, this type of eccentric wheel can also increase the frequency of reciprocating movement of the motion rod assembly when rotating.

[0011] In one optional implementation, the distance between the two mating surfaces along the first direction is the mating distance, the maximum width of the eccentric wheel is less than the mating distance, and the minimum width of the eccentric wheel is greater than the mating distance.

[0012] Beneficial effects: This type of mating surface avoids the eccentric wheel from contacting two mating surfaces simultaneously. When the eccentric wheel contacts one mating surface, there is a gap between it and the other mating surface, which can effectively reduce the friction between the eccentric wheel and the mating surface and improve its service life.

[0013] In one alternative embodiment, the mating part is provided with a groove with an opening facing the second direction, the space inside the groove forms an accommodating space, and the two opposite sidewalls of the groove respectively form mating surfaces.

[0014] Beneficial effects: This type of mating structure is more reliable, and the groove can more stably accommodate the eccentric wheel, preventing the eccentric wheel from moving arbitrarily along the axial direction.

[0015] In one alternative embodiment, a strip-shaped hole is provided on the bottom wall of the groove, the strip-shaped hole extends along a first direction, the drive assembly is disposed on the side opposite to the opening of the mating part, and the drive shaft passes through the strip-shaped hole and is detachably connected to the eccentric wheel.

[0016] Beneficial effects: This type of drive shaft connection makes it easier for operators to observe the installation and operation of the eccentric wheel through the opening. In addition, the strip hole can also constrain the movement direction of the mating parts.

[0017] In one alternative embodiment, the massage unit further includes a cover plate disposed at the opening and used to seal the opening, the cover plate being detachably connected to the mating part.

[0018] Beneficial effects: The cover plate can effectively seal the opening, preventing external parts or dust from entering the groove, thus improving the reliability and stability of the eccentric wheel during operation.

[0019] In one alternative embodiment, the massage unit further includes a lubricant disposed in the groove.

[0020] Beneficial effects: It can further reduce the friction between the eccentric wheel and the mating surface, thereby reducing the noise generated when the eccentric wheel is working. In addition, it can also reduce the heat generated by the eccentric wheel and extend its service life.

[0021] In one alternative embodiment, the motion bar assembly includes a bar body and a mating seat, the mating seat having a mating portion, the bar body extending along a first direction, one end of the bar body being detachably connected to the mating seat, and the other end forming a massage end;

[0022] The guide assembly includes a guide ring and a buffer sleeve. The guide structure is a guide hole extending in the guide ring along a first direction. The guide ring is sleeved on the outside of the rod body through the guide hole. The buffer sleeve is an elastic element and is sleeved on the outside of the guide ring.

[0023] Beneficial effects: The motion rod assembly is simple and reliable, and the rod body and mating seat can be detachably connected, which not only facilitates the manufacturing and assembly of the motion rod assembly, but also makes it easier to assemble the rod body with the guide assembly. In addition, the guide ring can cooperate with external parts through the buffer sleeve, which can reduce the vibration transmitted outward by the guide ring.

[0024] Secondly, this utility model also provides a massage device, which includes: the massage unit described above, a housing, and a battery assembly; the housing has an installation space inside, the massage unit is disposed in the installation space and connected to the housing, and the massage end of the motion rod assembly of the massage unit extends out from the housing; the battery assembly is fixedly disposed in the installation space and electrically connected to the drive component of the drive assembly of the massage unit. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a three-dimensional schematic diagram of a massage unit according to an embodiment of the present utility model;

[0027] Figure 2 for Figure 1 The massage unit shown is a 3D diagram without the eccentric wheel.

[0028] Figure 3 for Figure 1 A three-dimensional schematic diagram of the massage unit after the cover plate has been installed;

[0029] Figure 4 for Figure 1 An exploded view of the motion rod assembly and guide assembly of the massage unit shown;

[0030] Figure 5 This is a schematic diagram of the internal structure of a massage device according to an embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Movement rod assembly; 101. Mating part; 1011. Receiving space; 1012. Mating surface; 1013. Groove; 10131. Opening; 1014. Strip hole; 102. Massage end; 103. Rod body; 104. Mating seat;

[0033] 2. Guide assembly; 201. Guide ring; 2011. Guide hole; 202. Buffer sleeve;

[0034] 3. Drive assembly; 301. Drive component; 3011. Drive shaft; 302. Eccentric wheel; 3021. Connecting part; 3022. Elastic part;

[0035] 4. Cover plate; 5. Housing; 6. Battery assembly;

[0036] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] The following is combined with Figures 1 to 5 The following describes embodiments of the present invention.

[0039] According to an embodiment of the present invention, a massage unit is provided, having a vertical first direction X and a second direction Y. The massage unit includes: a motion rod assembly 1, a guide assembly 2, and a drive assembly 3.

[0040] The motion rod assembly 1 can move along the first direction X. One end of the motion rod assembly 1 along the first direction X forms a mating part 101 and the other end forms a massage end 102. The mating part 101 has a receiving space 1011. Two walls opposite each other along the first direction X in the receiving space 1011 respectively form mating surfaces 1012.

[0041] The guide component 2 is fixedly installed and has a guide structure with the guide direction along the first direction X. The guide structure is guided and cooperates with the motion rod component 1.

[0042] The drive assembly 3 includes a drive member 301 and an eccentric wheel 302. The drive member 301 has a rotatable drive shaft 3011 that extends along the second direction Y. The eccentric wheel 302 is disposed in the receiving space 1011 and is fixedly connected to the drive shaft 3011. The eccentric wheel 302 is driven to rotate by the drive member 301 and pushes the mating surface 1012, thereby driving the motion rod assembly 1 to reciprocate along the first direction X.

[0043] In the massage unit of this embodiment, the eccentric wheel 302 is disposed in the receiving space 1011 of the mating part 101. Since the receiving space 1011 has two mating surfaces 1012 arranged opposite to each other along the first direction X, when the eccentric wheel 302 is driven to rotate by the driving member 301, the eccentric wheel 302 contacts and pushes the mating surface 1012, thereby causing the driving component 3 to reciprocate along the first direction X. There is no need to set up an intermediate transmission rod, which not only simplifies the structure of the massage unit and reduces the number of parts, but also avoids the use of connecting bearings, thereby avoiding noise generated by connecting bearings and effectively solving the problem of large bearing noise during the operation of existing fascia guns.

[0044] The first direction refers to Figure 1The direction of the "X" pointed to by the middle arrow, the second direction refers to Figure 1 The direction of "Y" indicated by the middle arrow is perpendicular to the first direction X and the second direction Y. It should be understood that the introduction of the first direction X, the second direction Y, and concepts such as symmetry and axis of symmetry are merely for the convenience of describing spatial positional relationships and should not be construed as limiting the scope of the embodiments of this application. Therefore, the perpendicular relationship between the first direction X and the second direction Y can be interpreted, depending on the actual technical scenario, as the first direction X and the second direction Y representing two mutually perpendicular directions in three-dimensional space, or it can be reasonably interpreted as a nearly perpendicular relationship between the first direction X and the second direction Y, for example, the included angle between the first direction X and the second direction Y is within the range of 85°-95°... As long as the technical solution conforms to the spirit of this utility model or achieves the technical effect described in this utility model, it can be considered to fall within the scope defined by the appended claims.

[0045] Specifically, the specific structural form of the mating part 101 is not limited. The accommodating space 1011 can be formed by a frame structure or by a groove-shaped structure, as long as it has two mating surfaces 1012 opposite to each other along the first direction X.

[0046] It should be noted that the massage end 102 refers to the end used for massage work, which can be a part that can be directly massaged or a part that can be connected to the massage head.

[0047] In one possible implementation, such as Figure 1 As shown, the eccentric wheel 302 includes a connecting part 3021 and an elastic part 3022. The elastic part 3022 is arranged around the edge of the connecting part 3021. The connecting part 3021 is fixedly connected to the drive shaft 3011. The eccentric wheel 302 has a simple and reliable structure. The connecting part 3021 contacts the mating surface 1012 through the elastic part 3022, which can reduce the noise generated during contact and provide a buffer for contact. It can reduce noise and make the impact process more gentle. In addition, when the external load is too large and stall occurs, this type of eccentric wheel 302 can deform to relieve the force and prevent the motor current from being too large and causing damage.

[0048] Specifically, the form of the eccentric wheel 302 is not limited. The connecting part can be a rigid structure or an elastic element made of the same material as the elastic part 3022.

[0049] Preferably, the eccentric wheel 302 is an elastic element made of thermoplastic polyester elastomer.

[0050] In one possible implementation, such as Figure 1As shown, the eccentric wheel 302 has a polygonal structure, and the edges and corners of the eccentric wheel 302 have arc-shaped contact surfaces. This type of eccentric wheel 302 requires less space when rotating, which can effectively improve the structural compactness of the massage unit. In addition, this type of eccentric wheel 302 can also increase the frequency of reciprocating movement of the motion rod assembly 1 when rotating.

[0051] It is understandable that, as an alternative implementation, the eccentric wheel 302 can also be of a circular structure.

[0052] Specifically, such as Figure 1 As shown, the eccentric wheel 302 has a triangular structure, and the sides and corners of the eccentric wheel 302 have arc-shaped contact surfaces.

[0053] In one possible implementation, such as Figure 1 As shown, the distance between the two mating surfaces 1012 along the first direction X is the mating distance. The maximum width of the eccentric wheel 302 is less than the mating distance, and the minimum width of the eccentric wheel 302 is greater than the mating distance. This type of mating surface 1012 can prevent the eccentric wheel 302 from contacting both mating surfaces 1012 at the same time. When the eccentric wheel 302 contacts one of the mating surfaces 1012, there is a gap between it and the other mating surface 1012, which can effectively reduce the friction between the eccentric wheel 302 and the mating surface 1012 and improve the service life.

[0054] In one possible implementation, such as Figure 1 and Figure 2 As shown, the mating part 101 has a groove 1013 with an opening 10131 facing the second direction Y. The space inside the groove 1013 forms a receiving space 1011. The two opposite side walls of the groove 1013 respectively form mating surfaces 1012. This type of mating part 101 structure is more reliable. The groove 1013 can more stably accommodate the eccentric wheel 302 and prevent the eccentric wheel 302 from moving arbitrarily along the axial direction.

[0055] Specifically, the shape of the groove 1013 is not limited, as long as the corresponding position is provided with a mating surface 1012 and can avoid interference with the rotation of the eccentric wheel 302.

[0056] In one possible implementation, such as Figure 1 and Figure 2As shown, a strip hole 1014 is provided on the bottom wall of the groove 1013. The strip hole 1014 extends along the first direction X. The drive assembly 3 is located on the side of the mating part 101 opposite to the opening 10131. The drive shaft 3011 passes through the strip hole 1014 and is detachably connected to the eccentric wheel 302. This connection method of the drive shaft 3011 makes it easier for the operator to observe the installation and operation of the eccentric wheel 302 through the opening 10131. In addition, the strip hole 1014 can also constrain the movement direction of the mating part 101.

[0057] It is understood that, as an alternative implementation, the drive shaft 3011 can also extend directly into the groove 1013 through the opening 10131, thereby achieving a detachable connection with the eccentric wheel 302.

[0058] Specifically, such as Figure 1 As shown, a connecting sleeve is provided at the connecting part 3021 of the eccentric wheel 302. The connecting sleeve extends out of the groove 1013 through the strip hole 1014, and the outer wall of the connecting sleeve is engaged with the inner wall of the strip hole 1014. A connecting hole is provided inside the connecting sleeve. The drive shaft 3011 is inserted into the connecting hole and connected to the connecting part 3021 by fastening components such as bolts.

[0059] In one possible implementation, such as Figure 3 As shown, the massage unit also includes a cover plate 4, which is disposed at the opening 10131 and is used to block the opening 10131. The cover plate 4 is detachably connected to the mating part 101. The cover plate 4 can effectively block the opening 10131, preventing external parts or dust from entering the groove 1013 and improving the reliability and stability of the eccentric wheel 302 during operation.

[0060] Specifically, such as Figure 3 As shown, the shape of the cover plate 4 matches the shape of the opening 10131. The cover plate 4 and the mating part 101 are respectively provided with multiple connecting holes for fastening components such as bolts to pass through. The cover plate 4 and the mating part 101 are detachably connected by multiple fastening components.

[0061] In one possible implementation, the massage unit also includes a lubricant disposed in the groove 1013, which can further reduce the friction generated between the eccentric wheel 302 and the mating surface 1012, thereby reducing the noise generated when the eccentric wheel 302 is working. In addition, it can also reduce the heat generated by the eccentric wheel 302 and improve the service life of the eccentric wheel 302.

[0062] Specifically, no particular type of lubricant is specified here; existing lubricants can be selected according to the specific needs.

[0063] In one possible implementation, such as Figure 4As shown, the motion rod assembly 1 includes a rod body 103 and a mating seat 104. The mating seat 104 has a mating part 101. The rod body 103 extends along the first direction X. One end of the rod body 103 is detachably connected to the mating seat 104, and the other end forms a massage end 102.

[0064] The guide assembly 2 includes a guide ring 201 and a buffer sleeve 202. The guide structure is a guide hole 2011 extending along the first direction X in the guide ring 201. The guide ring 201 is sleeved on the outside of the rod body 103 through the guide hole 2011. The buffer sleeve 202 is an elastic element and is sleeved on the outside of the guide ring 201. The motion rod assembly 1 is simple and reliable. The rod body 103 and the mating seat 104 are detachably connected, which not only facilitates the manufacturing and assembly of the motion rod assembly 1, but also facilitates the assembly of the rod body 103 with the guide assembly 2. In addition, the guide ring 201 can cooperate with external components through the buffer sleeve 202, which can reduce the vibration transmitted outward by the guide ring 201.

[0065] Specifically, such as Figure 4 As shown, the end of the rod 103 is provided with a slot, and the mating seat 104 is provided with a pin for mating with the slot. Both the slot and the pin are provided with connecting holes, and the slot and the pin are detachably connected by fastening components such as bolts.

[0066] Furthermore, such as Figure 4 As shown, both the slot and the pin are rectangular structures. This type of insertion can prevent relative rotation between the rod 103 and the mating seat 104 after they are connected.

[0067] According to an embodiment of the present invention, in another aspect, a massage device is provided, such as... Figure 5 As shown, it includes: the massage unit mentioned above, the housing 5 and the battery assembly 6; the housing 5 has an installation space inside, the massage unit is disposed in the installation space and connected to the housing 5, and the massage end 102 of the motion rod assembly 1 of the massage unit extends out from the housing 5; the battery assembly 6 is fixedly disposed in the installation space and is electrically connected to the drive member 301 of the drive assembly 3 of the massage unit.

[0068] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A massage unit having a vertical first direction (X) and a vertical second direction (Y), characterized in that, include: The motion rod assembly (1), the guide assembly (2), and the drive assembly (3); The motion rod assembly (1) is movable along the first direction (X). One end of the motion rod assembly (1) along the first direction (X) forms a mating part (101) and the other end forms a massage end (102). The mating part (101) has a receiving space (1011). Two walls opposite each other along the first direction (X) in the receiving space (1011) respectively form mating surfaces (1012). The guide component (2) is fixedly installed and has a guide structure with the guide direction along the first direction (X). The guide structure is guided and cooperates with the motion rod component (1). The drive assembly (3) includes a drive member (301) and an eccentric wheel (302). The drive member (301) has a rotatable drive shaft (3011) that extends along the second direction (Y). The eccentric wheel (302) is disposed in the receiving space (1011) and fixedly connected to the drive shaft (3011). The eccentric wheel (302) is driven to rotate by the drive member (301) and pushes the mating surface (1012), thereby driving the motion rod assembly (1) to reciprocate along the first direction (X).

2. The massage unit according to claim 1, characterized in that, The eccentric wheel (302) includes a connecting part (3021) and an elastic part (3022). The elastic part (3022) is arranged around the edge of the connecting part (3021). The connecting part (3021) is fixedly connected to the drive shaft (3011).

3. The massage unit according to claim 1, characterized in that, The eccentric wheel (302) has a polygonal structure, and the edges and corners of the eccentric wheel (302) have arc-shaped contact surfaces.

4. The massage unit according to claim 3, characterized in that, The distance between the two mating surfaces (1012) along the first direction (X) is the mating distance. The maximum width of the eccentric wheel (302) is less than the mating distance, and the minimum width of the eccentric wheel (302) is greater than the mating distance.

5. The massage unit according to any one of claims 1 to 4, characterized in that, The mating part (101) is provided with a groove (1013) with an opening (10131) facing the second direction (Y), the space inside the groove (1013) forms the receiving space (1011), and the two opposite sidewalls of the groove (1013) respectively form the mating surface (1012).

6. The massage unit according to claim 5, characterized in that, A strip hole (1014) is provided on the bottom wall of the groove (1013), the strip hole (1014) extends along the first direction (X), the drive assembly (3) is provided on the side of the mating part (101) opposite to the opening (10131), the drive shaft (3011) passes through the strip hole (1014) and is detachably connected to the eccentric wheel (302).

7. The massage unit according to claim 6, characterized in that, The massage unit also includes a cover plate (4), which is disposed at the opening (10131) and is used to block the opening (10131). The cover plate (4) is detachably connected to the mating part (101).

8. The massage unit according to claim 7, characterized in that, The massage unit also includes a lubricant disposed in the groove (1013).

9. The massage unit according to any one of claims 1 to 4, characterized in that, The motion rod assembly (1) includes a rod body (103) and a mating seat (104). The mating seat (104) has the mating part (101). The rod body (103) extends along the first direction (X). One end of the rod body (103) is detachably connected to the mating seat (104), and the other end forms the massage end (102). The guide assembly (2) includes a guide ring (201) and a buffer sleeve (202). The guide structure is a guide hole (2011) extending along the first direction (X) in the guide ring (201). The guide ring (201) is sleeved on the outside of the rod body (103) through the guide hole (2011). The buffer sleeve (202) is an elastic element and is sleeved on the outside of the guide ring (201).

10. A massage device, characterized in that, include: The massage unit according to any one of claims 1 to 9, the housing (5), and the battery assembly (6); The housing (5) has an installation space inside, the massage unit is disposed in the installation space and connected to the housing (5), and the massage end (102) of the motion rod assembly (1) of the massage unit extends out from the housing (5); The battery assembly (6) is fixedly disposed in the installation space and is electrically connected to the drive component (301) of the drive assembly (3) of the massage unit.

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