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CN-224207077-U - Fascia gun

CN224207077UCN 224207077 UCN224207077 UCN 224207077UCN-224207077-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 first bearing, a plastic elastic connecting rod, a second bearing, 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 that of the driving shaft, the inner ring of the first bearing is sleeved on the eccentric shaft, one end of the plastic elastic connecting rod is connected with the outer ring of the first bearing, the elastic modulus of the plastic elastic connecting rod is more than or equal to 6GPa and less than or equal to 15GPa, the Rockwell hardness of the plastic elastic connecting rod is more than or equal to R120, the outer ring of the second bearing is connected with the other end of the plastic 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 the transmission rod reciprocates along the length direction of the transmission rod. The fascia gun has the advantages of high massage comfort, good holding hand feeling, low cost, high production efficiency and high yield.

Inventors

  • YANG YANXI
  • HONG JIADONG
  • WU FENGYUN
  • WANG JINJIAN

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 (900) comprises a main body (910) and an eccentric shaft (920), wherein the main body (910) is connected with the eccentric shaft (920), the main body (910) is in transmission connection with the driving shaft (210), and the central axis of the eccentric shaft (920) is parallel to the central axis of the driving shaft (210); the first bearing (300), the inner ring of the first bearing (300) is sleeved on the eccentric shaft (920); the plastic elastic connecting rod (400), one end of the plastic elastic connecting rod (400) is connected with the outer ring of the first bearing (300), the elastic modulus of the plastic elastic connecting rod (400) is more than or equal to 6GPa and less than or equal to 15GPa, and the Rockwell hardness of the plastic elastic connecting rod (400) is more than or equal to R120; the outer ring of the second bearing (500) is connected with the other end of the plastic 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 plastic elastic link (400) comprises polyhexamethylene adipamide and 20% -30% glass fiber material; or the plastic elastic connecting rod (400) comprises nylon plastic polyamide 6 and 20% -30% of glass fiber material; or the plastic elastic connecting rod (400) comprises polybutylene terephthalate and 20% -30% of glass fiber material; Or the plastic elastic connecting rod (400) comprises polyethylene terephthalate and 20% -30% of glass fiber material; Or the plastic elastic connecting rod (400) comprises polyphenylene sulfide and 30% -40% of glass fiber material; or the plastic elastic connecting rod (400) comprises polycarbonate and 20% -30% of glass fiber material.
  3. 3. The fascia gun of claim 1, wherein the plastic elastic connecting rod (400) is provided with a first through hole (410) and a second through hole (420), the fascia gun (1) further comprises a first bearing seat (700) and a second bearing seat (800), the first bearing seat (700) is arranged on the first through hole (410) and sleeved on the first bearing (300), and the second bearing seat (800) is arranged on the second through hole (420) and sleeved on the second bearing (500).
  4. 4. A fascia gun according to claim 3, characterized in that the first bearing seat (700) is injection molded as a one-piece structure with the plastic elastic link (400); And/or the second bearing (800) and the plastic elastic connecting rod (400) are injection molded into an integral structure.
  5. 5. A fascia gun according to claim 3, characterized in that the inner circumferential surface of the first through hole (410) is provided with a first groove (411), the outer circumferential surface of the first bearing seat (700) is provided with a first outer ring (710), and the first outer ring (710) is arranged in the first groove (411); And/or, the inner peripheral surface of the second through hole (420) is provided with a second groove (421), the outer peripheral surface of the second bearing seat (800) is provided with a second outer ring (810), and the second outer ring (810) is arranged in the second groove (421).
  6. 6. The fascia gun according to claim 5, characterized in that one of the first outer ring (710) and the plastic elastic link (400) is provided with a first positioning hole (711) and the other is provided with a first protrusion (430), the first protrusion (430) being inserted into the first positioning hole (711); And/or, one of the second outer ring (810) and the plastic elastic connecting rod (400) is provided with a second positioning hole (811) and the other is provided with a second convex part (440), and the second convex part (440) is inserted into the second positioning hole (811).
  7. 7. The fascia gun of claim 6, wherein the first positioning hole (711) is provided at the first outer ring (710) and penetrates an edge of the first outer ring (710); And/or, the second positioning hole (811) is arranged on the first outer ring (710) and penetrates through the edge of the first outer ring (710); And/or the first positioning holes (711) are multiple, and the first positioning holes (711) are arranged at intervals along the circumferential direction of the first bearing (300); And/or the second positioning holes (811) are multiple, and the second positioning holes (811) are arranged at intervals along the circumferential direction of the second bearing (500).
  8. 8. The fascia gun according to claim 6, characterized in that the first positioning hole (711) is provided in the first outer ring (710), the first outer ring (710) further comprises a third positioning hole (712), the third positioning hole (712) is connected with one end of the first positioning hole (711) near the first bearing (300), the maximum width of the third positioning hole (712) is larger than the maximum width of the first positioning hole (711), and the plastic elastic connecting rod (400) is further provided with a third protrusion (450) matched with the third positioning hole (712); And/or, the second positioning hole (811) is arranged on the second outer ring (810), the second outer ring (810) further comprises a fourth positioning hole (812), the fourth positioning hole (812) is connected with one end, close to the second bearing (500), of the second positioning hole (811), the maximum width of the fourth positioning hole (812) is larger than that of the second positioning hole (811), and the plastic elastic connecting rod (400) is further provided with a fourth convex part (460) matched with the fourth positioning hole (812).
  9. 9. A fascia gun according to claim 3, characterized in that the inner circumferential surface of the first bearing seat (700) is provided with a first inner ring (720), the first bearing (300) being in abutment with the first inner ring (720); and/or, a second inner ring (820) is arranged on the inner peripheral surface of the second bearing (800), and the second bearing (500) is abutted against the second inner ring (820).
  10. 10. The fascia gun according to any of claims 1-9, wherein the plastic elastic connecting rod (400) is provided with a weight-reducing groove (470) on at least one side in the thickness direction thereof, and a reinforcing rib (471) is provided in the weight-reducing groove (470); And/or, plastic elastic connecting rod (400) includes first thickness section (481), changeover portion (482) and second thickness section (483), first thickness section (481) with first bearing (300) are connected, second thickness section (483) with second bearing (500) are connected, second thickness section (483) thickness is less than first thickness section (481) thickness, changeover portion (482) with first thickness section (481) and second thickness section (483) are connected respectively, from first thickness section (481) to second thickness section (483), the thickness of changeover portion (482) gradually reduces.

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 plastic 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, 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 inner ring of the first bearing is sleeved on the eccentric shaft, one end of the plastic elastic connecting rod is connected with the outer ring of the first bearing, the elastic modulus of the plastic elastic connecting rod is more than or equal to 6GPa and less than or equal to 15GPa, the Rockwell hardness of the plastic elastic connecting rod is more than or equal to R120, the outer ring of the second bearing is connected with the other end of the plastic 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 plastic elastic connecting rod is adopted to replace a rigid metal connecting rod in the fascia gun in the prior art, and has elasticity and can be elastically deformed. When the massage head is used for impact massage of a body, impact counter force can be transmitted back to the plastic elastic connecting rod, elastic deformation is carried out on the plastic elastic connecting rod to absorb the impact counter force, the plastic elastic connecting rod generates rebound force in the elastic deformation recovery process, the rebound force can be transmitted to the massage head, and the impact massage is equivalent to multiple impact massage of the body in one impact cycle. In addition, because the plastic elastic connecting rod can generate elastic deformation, the plastic 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 plastic elastic connecting rod can also follow the corresponding deformation of the stress, so the machining precision and the assembly precision of the 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 plastic elastic connecting rod comprises polyhexamethylene adipamide and 20% -30% of glass fiber material, or comprises nylon plastic polyamide 6 and 20% -30% of glass fiber material, or comprises polybutylene terephthalate and 20% -30% of glass fiber material, or comprises polyethylene terephthalate and 20% -30% of glass fiber material, or comprises polyphenylene sulfide and 30% -40% of glass fiber material, or comprises polycarbonate and 20% -30% of glass fiber material. The plastic elastic connecting rod has the beneficial effects that the plastic elastic connecting rod can be kept to meet the requirements, the manufacturing modes are multiple, and the structure is more flexible. In an alternative embodiment, the plastic elastic connecting rod is provided with a first through hole and a second through hole, the fascia gun further comprises a first bearing seat and a second bearing seat, the first bearing seat is arranged on the first through hole a