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CN-224207076-U - Fascia gun

CN224207076UCN 224207076 UCN224207076 UCN 224207076UCN-224207076-U

Abstract

The utility model relates to the technical field of massage instruments and discloses a fascia gun which comprises a driving mechanism, an eccentric wheel, a metal elastic connecting rod, a transmission rod assembly and a transmission rod assembly, wherein the driving mechanism is provided with a driving shaft, the eccentric wheel comprises a main body and an eccentric shaft which are connected with each other, the main body is in transmission connection with the driving shaft, the central axis of the eccentric shaft is parallel to the central axis of the driving shaft, an inner ring of the first bearing is sleeved on the eccentric shaft, one end of the metal elastic connecting rod is connected with an outer ring of the first bearing, the elastic modulus of the metal elastic connecting rod is more than or equal to 190GPa and less than or equal to 210GPa, the hardness of the metal elastic connecting rod is more than or equal to 55HRC and less than or equal to 62HRC, the outer ring of the second bearing is connected with the other end of the metal elastic connecting rod, the transmission rod assembly comprises a transmission rod and a fixed shaft, the fixed shaft is inserted into an inner ring of the second bearing, one end of the transmission rod is connected with the fixed shaft, the other end of the transmission rod is connected with a massage head, and the transmission rod reciprocates along the length direction of the transmission rod. The fascia gun has high massage comfort, good holding hand feeling, low cost, high production efficiency and high yield.

Inventors

  • YANG YANXI
  • HONG JIADONG
  • WU FENGYUN

Assignees

  • 深圳市欣智旺电子有限公司

Dates

Publication Date
20260508
Application Date
20250521

Claims (10)

  1. 1. A fascia gun, comprising: a drive mechanism (200) provided with a drive shaft (210); The eccentric wheel (700) comprises a main body (710) and an eccentric shaft (720), wherein the main body (710) is connected with the eccentric shaft (720), the main body (710) is in transmission connection with the driving shaft (210), and the central axis of the eccentric shaft (720) is parallel to the central axis of the driving shaft (210); The first bearing (300), the inner race of the first bearing (300) is sleeved on the eccentric shaft (720); The metal elastic connecting rod (400), one end of the metal elastic connecting rod (400) is connected with the outer ring of the first bearing (300), the elastic modulus of the metal elastic connecting rod (400) is more than or equal to 190GPa and less than or equal to 210GPa, and the hardness of the metal elastic connecting rod (400) is more than or equal to 55HRC and less than or equal to 62HRC; The outer ring of the second bearing (500) is connected with the other end of the metal elastic connecting rod (400); the transmission rod assembly (600) comprises a transmission rod (610) and a fixed shaft (620), wherein the fixed shaft (620) is inserted into an inner ring of the second bearing (500), one end of the transmission rod (610) is connected with the fixed shaft (620), the other end of the transmission rod is used for being connected with the massage head (100), and when a driving shaft (210) of the driving mechanism (200) rotates, the transmission rod (610) is driven to reciprocate along the length direction of the transmission rod (610).
  2. 2. The fascia gun of claim 1, wherein the metallic elastic link (400) comprises spring steel.
  3. 3. The fascia gun of claim 2, wherein the first bearing (300) is welded with the metallic elastic link (400); and/or the second bearing (500) is welded with the metal elastic link (400).
  4. 4. The fascia gun according to claim 1, characterized in that the metal elastic link (400) is provided with a first through hole (410), the first bearing (300) being provided through the first through hole (410); And/or, the metal elastic connecting rod (400) is provided with a second through hole (420), and the second bearing (500) is arranged in the second through hole (420) in a penetrating mode.
  5. 5. The fascia gun of claim 1, wherein the diameter of the first bearing (300) is larger than the diameter of the second bearing (500); and/or, from the first bearing (300) to the second bearing (500), the width of the metal elastic link (400) gradually decreases; And/or, both end surfaces of the metal elastic connecting rod (400) in the length direction are cambered surfaces.
  6. 6. The fascia gun according to any of claims 1-5, wherein the length of the metal elastic link (400) is 30mm or more and 70mm or less.
  7. 7. The fascia gun according to any of claims 1-5, wherein the thickness of the metal elastic link (400) is 0.8mm or more and 1.2mm or less.
  8. 8. The fascia gun according to claim 1, wherein a distance between an outer peripheral surface of the metal elastic link (400) and an outer peripheral surface of the first bearing (300) is 0.03mm or more and 0.08mm or less; And/or, the distance between the outer peripheral surface of the metal elastic connecting rod (400) and the outer peripheral surface of the second bearing (500) is greater than or equal to 0.03mm and less than or equal to 0.08mm.
  9. 9. The fascia gun of any of claims 1-5, wherein the flatness of the metal elastic link (400) is less than or equal to 0.01mm.
  10. 10. The fascia gun according to any of claims 1-5, characterized in that in the thickness direction of the metal elastic link (400), a face of the first bearing (300) facing the driving mechanism (200) and a face of the second bearing (500) facing the driving mechanism (200) are positioned flush.

Description

Fascia gun Technical Field The utility model relates to the technical field of massage instruments, in particular to a fascia gun. Background The fascia gun is a common body-building product, can relax muscles, prevent muscle fibrosis and atrophy, relieve muscle strain, quickly heat up, assist in treating fasciitis, promote muscle recovery, relieve fatigue and ache, and relax muscle tension. But the massage impact mode of fascia rifle among the related art is rough and violent, and massage effect is unsatisfactory, and fascia rifle shake is severe, and it is poor to hold and experience, in addition, fascia rifle is high to the machining precision and the equipment precision requirement of motion subassembly, has reduced production efficiency, has increased the defective rate, leads to with high costs. Disclosure of utility model In view of the above, the utility model provides a fascia gun to solve the problems of rough massaging impact mode, serious shaking and high requirements on the machining precision and the assembly precision of a moving assembly of the fascia gun. The utility model provides a fascia gun which comprises a driving mechanism, an eccentric wheel, a first bearing, a metal elastic connecting rod, a second bearing and a transmission rod assembly, wherein the driving mechanism is provided with a driving shaft, the eccentric wheel comprises a main body and an eccentric shaft, the main body is connected with the eccentric shaft in a transmission way, the main body is connected with the driving shaft in a transmission way, the central axis of the eccentric shaft is parallel to the central axis of the driving shaft, the first bearing is sleeved with the inner ring of the eccentric shaft, one end of the metal elastic connecting rod is connected with the outer ring of the first bearing, the elastic modulus of the metal elastic connecting rod is more than or equal to 190GPa and less than or equal to 210GPa, the hardness of the metal elastic connecting rod is more than or equal to 55HRC and less than or equal to 62HRC, the outer ring of the second bearing is connected with the other end of the metal elastic connecting rod, the transmission rod assembly comprises a transmission rod and a fixed shaft, the fixed shaft is inserted into the inner ring of the second bearing, one end of the transmission rod is connected with the fixed shaft, and the other end of the transmission rod is used for connecting a massage head, and when the driving shaft of the driving mechanism rotates, the transmission rod drives the transmission rod to reciprocate along the length direction of the transmission rod. The fascia gun has the beneficial effects that the fascia gun adopts the metal elastic connecting rod to replace the rigid metal connecting rod in the fascia gun in the prior art, and the metal elastic connecting rod has elasticity and can be elastically deformed. When the massage head is used for massaging the body in an impact manner, impact counter force can be transmitted back to the metal elastic connecting rod, the metal elastic connecting rod is elastically deformed to absorb the impact counter force, the metal elastic connecting rod generates a rebound force in the elastic deformation recovery process, the rebound force can be transmitted to the massage head, the massage head is equivalent to the impact massage to the body for many times in one impact cycle, on one hand, the large impact force of the massage head to the body for one time is adjusted to be small impact force to the body for many times, rough impact to the body is avoided, the massage comfort is improved, on the other hand, the impact counter force of the fascia gun applied to the body can be reduced, the vibration of the fascia gun is effectively reduced, and the holding comfort is improved. In addition, because the metal elastic connecting rod can generate elastic deformation, the metal elastic connecting rod can absorb machining tolerance and assembly tolerance through the elastic deformation, the tolerance is increased, even if other parts have certain offset deformation to cause stress, the metal elastic connecting rod can also correspondingly deform along with the stress, so that the machining precision and the assembly precision of a moving assembly in the fascia gun can be correspondingly reduced, the production efficiency and the yield are improved, and the cost of the whole machine is reduced. In an alternative embodiment, the metallic elastic link comprises spring steel. The metal elastic connecting rod has the beneficial effects that the elastic modulus and the hardness of the metal elastic connecting rod can be ensured to meet the requirements, and the metal elastic connecting rod is convenient to process and manufacture. In an alternative embodiment, the first bearing is welded to the metal elastic link, and/or the second bearing is welded to the metal elastic link. The connecting device has the beneficial effects that the first