US-20260124107-A1 - Massage Head Assembly and a Fascia Gun

US20260124107A1US 20260124107 A1US20260124107 A1US 20260124107A1US-20260124107-A1

Abstract

The present invention relates to a massage head assembly and a fascia gun. The massage head assembly includes a massage head, a first and second connecting portion, and a piston connected to a driving mechanism inside the fascia gun. The second connecting portion is provided with a connecting hole for the first connecting portion to enter. The first connecting portion is provided with a first thread, and the connecting hole is provided with a second thread that cooperates with the first thread. The massage head and the piston are detachably connected by the rotational connection of the second thread and the first thread. The fascia gun includes a main body and the massage head assembly. In the present invention, the connection between the massage head and the piston has good stability, and the massage head will not shake after long-term use, yielding an improved user experience.

Inventors

Chuanmei ZANG

Assignees

ZHEJIANG AERLANG TECHNOLOGY Co.,Ltd.

Dates

Publication Date: 20260507
Application Date: 20251230
Priority Date: 20240315

Claims (10)

1 . A massage head assembly for a fascia gun, comprising: a massage head, a connection coupling, and a piston connected to a driving mechanism inside the fascia gun; wherein the connection coupling comprises a first connection part and a second connection part, wherein the second connection part is formed with a connection hole for the first connection part to enter, the first connection part is fixed to the piston, the second connection part is fixed to the massage head, the first connection part is provided with a first thread, the connection hole is provided with a second thread cooperating with the first thread, wherein the massage head is detachably and rotatably connected to the piston through the second thread and the first thread.
2 . The massage head assembly according to claim 1 , further comprising a limiting member, wherein the limiting member comprises an elastic fixing part; wherein the elastic fixing part is arranged between the first connection part and the connection hole, so that the first connection part is in an interference fit with the connection hole and/or the second thread.
3 . The massage head assembly according to claim 1 , wherein the first connection part comprises a connection column and a boss; wherein the first thread is arranged on the connection column; wherein, when the massage head and the piston are connected, the connection column is located in the connection hole, and the boss is located outside the connection hole and abuts against an end of the second connection part.
4 . The massage head assembly according to claim 3 , further comprising a limiting member, wherein the limiting member comprises an elastic abutting part, and wherein the elastic abutting part is sleeved on an outer peripheral side of the first connection part to fill a gap between the boss and the second connection part.
5 . The massage head assembly according to claim 2 , wherein the first connection part is provided with a limiting groove in a circumferential direction, the elastic fixing part is sleeved in the limiting groove, and an outer diameter of the elastic fixing part is not less than a minor diameter of the second thread; or wherein the elastic fixing part is embedded in the connection hole, and an inner diameter of the elastic fixing part is not greater than a major diameter of the first thread.
6 . The massage head assembly according to claim 1 , wherein the driving mechanism inside the fascia gun comprises a connecting rod, the first connection part is arranged on the massage head, the second connection part is arranged on the piston, and one end of the connecting rod facing the piston is provided with a first mounting groove, wherein the connection hole extends through the piston, and an end of the piston away from the massage head is provided with a blocking plate, wherein the blocking plate is configured for closing the connection hole, and wherein one end of the piston away from the massage head is installed in the first mounting groove; wherein a first vent hole is provided at a bottom of the blocking plate, a second vent hole is provided in the first mounting groove, and the connection hole communicates with the outside through the first vent hole and the second vent hole.
7 . The massage head assembly according to claim 1 , wherein a limiting protrusion is arranged inside the second thread at an end away from the first connection part, and when the first connection part and the second connection part are installed, the first thread abuts against the limiting protrusion in an interference fit.
8 . The massage head assembly according to claim 1 , wherein the first thread is set as a convex block, a circular arc groove is arranged in the connection hole, the circular arc groove communicates with the second thread, a limiting protrusion is arranged in the circular arc groove, and when the first connection part and the second connection part are installed, the convex block abuts against the limiting protrusion in an interference fit, or the convex block is restricted between the limiting protrusion and a side wall of the circular arc groove.
9 . A fascia gun, comprising a main body and the massage head assembly according to claim 1 , wherein the main body comprises a main housing, a battery, a motor and a driving assembly, wherein the battery and the motor are arranged in the main housing and electrically connected to each other, and an output shaft of the motor is connected to one end of a connecting rod in the massage head assembly away from the massage head through the driving assembly.
10 . The fascia gun according to claim 9 , wherein the main housing comprises a head cover, an upper housing, a lower housing, a tail cover and a handle housing, wherein the lower housing is arranged above the handle housing, the upper housing and the lower housing are connected to form a main cavity, through holes are formed at a front end and a rear end of the main cavity, the head cover is connected to the through hole at the front end of the main cavity, and the tail cover is arranged at the through hole at the rear end of the main cavity; wherein the upper housing is convexly shaped to form a hump directly above the motor, wherein the hump comprises a front slope and a rear slope, the front slope is sequentially formed with a plurality of transverse heat dissipation holes for heat dissipation along a projection line of the transverse axis of the main cavity on the front slope, and the rear slope is provided with a plurality of longitudinal heat dissipation holes for heat dissipation in a direction of a projection line on the rear slope perpendicular to the transverse axis of the main cavity.

Description

TECHNICAL FIELD The present invention relates to the technical field of fascia guns, and more particularly to a massage head assembly for a fascia gun, and a fascia gun. BACKGROUND A fascia gun makes close contact with human muscles through the massage head at the front end. During use, it can effectively relieve muscle fatigue, promote blood circulation, and accelerate lactic acid metabolism. With the popularization of fascia guns, users have increasingly high requirements for their user experience. However, a common problem with the massage heads of fascia guns on the market is that the connection of the massage head is prone to shaking after prolonged use, resulting in an unstable connection. This shaking not only affects the stability of the massage head, but may also cause discomfort to the user during use, and may even damage the fascia gun due to long-term use. SUMMARY The present invention provides a massage head assembly and a fascia gun, wherein the connection between the massage head and the piston has good stability, the massage head does not shake after long-term use, and the user experience is better. In order to achieve the above object, the present invention adopts the following technical solutions: A massage head assembly, applied in a fascia gun, including a massage head, a connecting portion, and a piston connected to a driving mechanism in the fascia gun. The connecting portion includes a first connecting portion and a second connecting portion, the second connecting portion is provided with a connecting hole for the first connecting portion to enter, one of the first connecting portion and the second connecting portion is fixed to the massage head, and the other is fixed to the piston, the first connecting portion is provided with a first thread, and the connecting hole is provided with a second thread matching the first thread, so that the massage head and the piston are detachably connected by the second thread and the first thread rotating connection. Preferably, the massage head assembly further includes a limiting member, the limiting member including an elastic fixing portion; The elastic fixing portion is arranged between the first connecting portion and the connecting hole, so that the first connecting portion is in interference fit with the connecting hole and/or the second thread. Preferably, the first connecting portion includes a connecting column and a boss and the first thread is arranged on the connecting column; When the massage head is connected to the piston, the connecting column is located in the connecting hole, and the boss is located outside the connecting hole and abuts against the end of the second connecting portion. Preferably, the limiting member further includes an elastic abutting portion, wherein the elastic abutting portion is connected to the end of the elastic fixing portion, the two are coaxial, and the elastic abutting portion is sleeved on the outer peripheral side of the first connecting portion to fill the gap between the boss and the second connecting portion. Preferably, the first connecting portion is provided with a limiting groove in the circumferential direction, the elastic fixing portion is sleeved in the limiting groove, and the outer diameter of the elastic fixing portion is not less than the minor diameter of the second thread; or In an embodiment, the elastic fixing portion is embedded in the connecting hole, and the inner diameter of the elastic fixing portion is not greater than the major diameter of the first thread. Preferably, the driving mechanism in the fascia gun includes a connecting rod, and in the case where the first connecting portion is arranged on the massage head and the second connecting portion is arranged on the piston, one end of the connecting rod facing the piston is provided with a first mounting groove, the connecting hole extends through the piston, the end of the piston away from the massage head is provided with a blocking plate, the blocking plate is used to close the connecting hole, and the end of the piston away from the massage head is installed in the first mounting groove; In an embodiment, the bottom of the blocking plate has a first vent hole, the first mounting groove is provided with a second vent hole, and the connecting hole communicates with the outside through the first vent hole and the second vent hole. Preferably, the second thread is provided with a limiting protrusion on the end away from the first connecting portion, and when the first connecting portion and the second connecting portion are installed, the first thread and the limiting protrusion abut against each other with interference. Preferably, the first thread is set as a protrusion, the connecting hole is also provided with a circular arc groove, the circular arc groove communicates with the second thread, the circular arc groove is provided with a limiting protrusion, and when the first connecting portion and the second connecting