Search

CN-224220408-U - Variable amplitude adjusting mechanism capable of detecting amplitude and fascia gun

CN224220408UCN 224220408 UCN224220408 UCN 224220408UCN-224220408-U

Abstract

The utility model relates to the fascia gun field, in particular to a variable amplitude adjusting mechanism and fascia gun which can directly detect amplitude parameters before and after adjustment through a magnetic sensor and a magnetic piece so as to accurately acquire the detectable amplitude of amplitude adjustment, comprising a reciprocating mechanism, wherein the reciprocating mechanism comprises a piston rod, a transmission arm and a rotatable eccentric wheel, one end of the transmission arm is hinged with the piston rod, the piston rod is slidably arranged on the fixed shell, the eccentric wheel comprises an output shaft, the output shaft is hinged with the transmission arm and comprises a magnetic sensor and a magnetic piece for realizing magnetic induction with the magnetic sensor, the magnetic sensor is arranged on the fixed shell or the bracket, and the magnetic piece is arranged on the reciprocating mechanism. The utility model is particularly useful in fascia gun products.

Inventors

  • Deng Xiaolang
  • ZHANG WEN

Assignees

  • 四川千里倍益康医疗科技股份有限公司

Dates

Publication Date
20260512
Application Date
20241209

Claims (10)

  1. 1. The amplitude-variable adjusting mechanism capable of detecting the amplitude comprises a reciprocating mechanism, wherein the reciprocating mechanism comprises a piston rod (12), a transmission arm (11) and a rotatable eccentric wheel, one end of the transmission arm (11) is hinged with the piston rod (12), the piston rod (12) is slidably arranged on a fixed shell (14), the eccentric wheel comprises an output shaft (53), and the output shaft (53) is hinged with the transmission arm (11), and the amplitude-variable adjusting mechanism is characterized by comprising a magnetic sensor (141) and a magnetic piece (142) for realizing magnetic induction with the magnetic sensor (141), wherein the magnetic sensor (141) is arranged on the fixed shell (14) or a bracket (1), and the magnetic piece (142) is arranged on the reciprocating mechanism.
  2. 2. The variable amplitude adjustment mechanism for detecting an amplitude of vibration according to claim 1, wherein the magnetic member (142) is fixedly provided on the output shaft (53) of the eccentric.
  3. 3. The variable amplitude adjustment mechanism for detecting an amplitude according to claim 2, wherein a magnetic member fastening screw (143) is fixedly connected to the bottom of the magnetic member (142), the magnetic member fastening screw (143) is fixedly provided on the top of the output shaft (53), and the axis of the magnetic member fastening screw (143) is coaxially arranged with the axis of the output shaft (53).
  4. 4. The variable amplitude adjustment mechanism for detecting an amplitude according to claim 1, wherein the magnetic member (142) is fixedly provided on the piston rod (12).
  5. 5. The variable amplitude adjustment mechanism for amplitude detection as claimed in claim 4, wherein a piston rod groove is provided in a side wall of the piston rod (12), and a magnetic member (142) is fixedly provided in the piston rod groove.
  6. 6. The variable amplitude adjustment mechanism for amplitude detection as claimed in claim 5, characterized in that the piston rod groove is provided extending in the axial direction of the piston rod (12).
  7. 7. The variable amplitude adjustment mechanism for detecting an amplitude according to claim 1, wherein a guide ring (13) is installed in the stationary housing (14), the piston rod (12) is slidably disposed in the guide ring (13), and the piston rod (12) reciprocates in an axial direction of the guide ring (13).
  8. 8. The variable amplitude adjustment mechanism for detecting an amplitude according to claim 7, wherein the magnetic sensor (141) is provided on a guide ring (13).
  9. 9. The variable amplitude adjusting mechanism for detecting the amplitude according to any one of claims 1 to 8, wherein the eccentric wheel comprises an eccentric column and an adjusting slide block, the adjusting slide block is connected with the eccentric column in a sliding way, and the output shaft (53) is arranged on the eccentric column; The motor assembly driving mechanism is connected with the motor assembly (7), and drives at least part of the motor assembly (7) to move along the axis direction of the motor output shaft (71) so as to drive the eccentric column to slide, so that the distance between the motor output shaft (71) and the eccentric column is adjusted.
  10. 10. Fascia gun, further comprising a variable amplitude adjustment mechanism for detecting amplitude according to any one of claims 1 to 9.

Description

Variable amplitude adjusting mechanism capable of detecting amplitude and fascia gun Technical Field The utility model relates to the field of fascia guns, in particular to a variable amplitude adjusting mechanism capable of detecting amplitude and a fascia gun. Background Fascia gun, also known as deep myofascial impactor, is a soft tissue massaging tool that relaxes the soft tissue of the body by high frequency impact. The existing fascia gun drives the massage head to do linear reciprocating motion through the piston, the massage head is in contact with a human body, high-frequency vibration is generated to act on deep layers of muscles, and the fascia gun has the effects of reducing local tissue tension, relieving pain, promoting blood circulation and the like. The prior fascia gun can be used for massaging and physiotherapy by a user according to the condition of the user. For example, professional athletes need amplitude depths deep to achieve relief of the muscle after exercise. While the normal consumer, especially a novice, uses a fascia gun with a shallow amplitude initially, and then gradually deepens the amplitude as the use requires. When the existing fascia gun is in a state of collecting amplitude adjustment, the amplitude parameter after adjustment is obtained through collecting the rotating speed of a motor and converting according to the relation between the distance from an output shaft of the motor to the reciprocating movement of a piston rod, and performing indirect conversion. In the mode of adopting the eccentricity to change and then realizing amplitude adjustment, because interference factors such as fit clearance are arranged between the fit parts, accumulated errors can be generated from the power input end to the power output end, and the converted amplitude value and the amplitude value after actual adjustment have errors. There is a phenomenon that the actual amplitude after adjustment is different from the amplitude obtained by conversion, and there is a difference in the sense of body for the user. Disclosure of utility model The utility model aims to solve the technical problem of providing a variable amplitude adjusting mechanism and a fascia gun, which can be used for directly detecting amplitude parameters before and after adjustment through a magnetic sensor and a magnetic piece so as to accurately acquire the detectable amplitude of amplitude adjustment. The technical scheme includes that the variable amplitude adjusting mechanism capable of detecting the amplitude comprises a reciprocating mechanism, the reciprocating mechanism comprises a piston rod, a transmission arm and a rotatable eccentric wheel, one end of the transmission arm is hinged with the piston rod, the piston rod is arranged on a fixed shell in a sliding mode, the eccentric wheel comprises an output shaft, the output shaft is hinged with the transmission arm, the output shaft comprises a magnetic sensor and a magnetic piece for achieving magnetic induction with the magnetic sensor, the magnetic sensor is arranged on the fixed shell or a bracket, and the magnetic piece is arranged on the reciprocating mechanism. When in actual use, the piston rod reciprocates, the eccentric wheel moves circularly, the transmission arm is positioned between the piston rod and the eccentric wheel, and the transmission arm swings reciprocally. When the corresponding amplitude of the reciprocating mechanism is adjusted, there is a change in the motion trajectory, which is also reflected on the magnetic element on the reciprocating mechanism. The change of the motion trail of the magnetic piece is detected through the magnetic induction between the magnetic sensor and the magnetic piece, so that the parameter of amplitude adjustment is directly obtained, and the parameter of amplitude adjustment is directly obtained. As an example of the fixing structure between the magnetic member and the reciprocating mechanism, the magnetic member may be selectively fixed to the output shaft of the eccentric wheel. The output shaft moves circularly around the motor output shaft, and when the amplitude is regulated, the distance between the output shaft and the motor output shaft, namely the eccentricity, is changed. Therefore, the movement trace of the output shaft is changed, and the change also causes the movement trace of the magnetic member to be changed. After the magnetic sensor detects the change, the amplitude adjustment condition can be obtained. Preferably, the bottom of the magnetic piece is fixedly connected with a magnetic piece fastening screw, the magnetic piece fastening screw is fixedly arranged at the top of the output shaft, and the axis of the magnetic piece fastening screw is coaxially arranged with the axis of the output shaft. Through magnetic part fastening screw, can be convenient be fixed in the output shaft top with magnetic part, also be convenient for follow-up dismantlement change simultaneously. As another e