A transmission structure of a double-head fascia gun movement and a double-head fascia gun

Abstract

The utility model discloses a transmission structure of double -end fascia gun movement and double -end fascia gun, through driving motor drives eccentric wheel rotation to rotate and drive first connecting rod swing, first connecting rod drives first impact shaft reciprocating motion in first through -hole, and under the action of first sliding slot, first support pin, second support pin and second sliding slot, first impact shaft drives second connecting rod reciprocating swing, when first impact shaft one end activity exit first through -hole and drive massage head to carry out knock massage, second impact shaft enters the frame and drives massage head contraction movement, and then first impact shaft enters the frame and drives massage head contraction movement, second impact shaft one end activity exit second through -hole and drive massage head to carry out knock massage movement, so repeatedly can realize the massage head on first impact shaft and the massage head on second impact shaft alternate uninterrupted knock massage movement, and the transmission structure of this double -end fascia gun movement has no idle gap of knock massage, and people use experience is good.

Description

Technical Field

[0001] This utility model relates to the field of fascia gun technology, and in particular to a transmission structure of a double-headed fascia gun mechanism and a double-headed fascia gun. Background Technology

[0002] A fascia gun, also known as a massage gun or deep myofascial impactor, is a soft tissue massage tool that relaxes the body's soft tissues through high-frequency impacts. Existing fascia guns use a massage drive mechanism to move the massage head in a linear reciprocating motion. When the massage head comes into contact with the body, it generates high-frequency vibrations that penetrate deep into the muscles, reducing local tissue tension, relieving pain, and promoting blood circulation.

[0003] A Chinese utility model patent published on March 4, 2025, with publication number CN222549633U, describes a fascia gun with dual-head output. This device allows for easy disassembly and installation of the massage heads, thus enabling the number of massage heads to be adjusted according to the needs of different users.

[0004] However, the two massage heads of this fascia gun move synchronously to perform the massage, resulting in gaps in the massage without tapping during use, which leads to a poor user experience. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a transmission structure for a double-headed fascia gun mechanism and a double-headed fascia gun, so as to solve the problem that the two massage heads of the existing fascia gun move synchronously to massage, resulting in a gap during use where there is no massage and a poor user experience.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a transmission structure for a double-headed fascia gun mechanism, including a motor, an eccentric wheel fixedly mounted at the output end of the motor, and a first connecting rod connected to the eccentric shaft of the eccentric wheel via a bearing, and further including: The frame is provided with a first through hole and a second through hole. The first impact shaft is connected to one end of the first connecting rod via a bearing, and the first impact shaft is movably disposed within the first through hole; The second impact shaft is movably disposed within the second through hole; The second connecting rod has one end hinged to one end of the first impact shaft, and the second connecting rod has a first sliding groove and a second sliding groove. The first support pin is fixed to one end of the second impact shaft and passes through the first slide groove; The second support pin is fixed to the frame and passes through the second slide groove; When the motor drives the eccentric wheel to rotate, the first impact shaft and the second impact shaft alternately move through the first through hole and the second through hole in sequence.

[0007] Preferably, two second crossbars are fixedly installed on one end of the second impact shaft opposite to the second connecting rod, and a first support pin is fixedly installed between the two second crossbars. The two sides of the second connecting rod are respectively in contact with one of the second crossbars.

[0008] Preferably, a shock-absorbing rubber sleeve is fixed to the inner wall of the first through hole and the second through hole, and a wear-resistant component is fixedly installed on the inner wall of the shock-absorbing rubber sleeve. The wear-resistant component is in contact with the outer surface of the first impact shaft and the second impact shaft.

[0009] Preferably, two first crossbars are fixedly installed at one end of the first impact shaft opposite to the second connecting rod, and a second connecting rod is hinged between the two first crossbars, with each side of the second connecting rod contacting one of the first crossbars.

[0010] A double-headed fascia gun, including the transmission structure of the double-headed fascia gun mechanism.

[0011] Preferably, the massage head can be detachably and fixedly installed at the end of the first and second impact shafts away from the second connecting rod.

[0012] Compared with the prior art, the beneficial effects that this utility model can achieve are: The motor drives the eccentric wheel to rotate, which in turn drives the first connecting rod to swing. The first connecting rod drives the first impact shaft to reciprocate within the first through hole. Under the action of the first slide groove, the first support pin, the second support pin, and the second slide groove, the first impact shaft drives the second connecting rod to swing back and forth. When one end of the first impact shaft moves out of the first through hole and drives the massage head to perform a tapping massage, the second impact shaft enters the frame and drives the massage head to retract. Then, when the first impact shaft enters the frame and drives the massage head to retract, one end of the second impact shaft moves out of the second through hole and drives the massage head to perform a tapping massage. This process is repeated to achieve an alternating and uninterrupted tapping massage between the massage heads on the first and second impact shafts. Compared to existing fascia guns where the two massage heads move synchronously, the transmission structure of this double-headed fascia gun mechanism has no gaps in the tapping massage, resulting in a better user experience. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the transmission structure of the double-headed fascia gun mechanism of this utility model; Figure 2 This utility model Figure 1 Cross-sectional structural diagram; The components include: 1. Frame; 2. Motor; 3. Eccentric wheel; 4. First connecting rod; 5. First impact shaft; 51. First crossbar; 6. Second impact shaft; 61. First support pin; 62. Second crossbar; 7. Second connecting rod; 71. First slide groove; 72. Second slide groove; 8. Second support pin; 9. Shock-absorbing rubber sleeve; 10. Wear-resistant parts. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model is further described below in conjunction with specific embodiments. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of this utility model.

[0015] like Figure 1 and Figure 2 As shown, this utility model provides a transmission structure for a double-headed fascia gun core, including a motor 2, an eccentric wheel 3 fixedly installed at the output end of the motor 2, and a first connecting rod 4 connected to the eccentric shaft of the eccentric wheel 3 through a bearing. It also includes a frame 1, a first impact shaft 5, a second impact shaft 6, a second connecting rod 7, a first support pin 61, and a second support pin 8. The motor 2 is fixed to the frame 1, and the frame 1 has a first through hole and a second through hole; One end of the first connecting rod 4 is connected to the first impact shaft 5 via a bearing, and the first impact shaft 5 is movably disposed in the first through hole; The second impact shaft 6 is movably disposed within the second through hole; One end of the second connecting rod 7 is hinged to one end of the first impact shaft 5, and the second connecting rod 7 is provided with a first sliding groove 71 and a second sliding groove 72. The first support pin 61 is fixed to one end of the second impact shaft 6 and passes through the first slide groove 71; The second support pin 8 is fixed to the frame 1 and passes through the second slide groove 72. The second support pin 8 is located between the first impact shaft 5 and the second impact shaft 6. When the motor 2 drives the eccentric wheel 3 to rotate, the first impact shaft 5 and the second impact shaft 6 alternately move through the first through hole and the second through hole in sequence. The massage head can be detached and fixedly installed at the end of the first impact shaft 5 and the second impact shaft 6 away from the second connecting rod 7 (such as by threaded connection). In use, the motor 2 drives the eccentric wheel 3 to rotate, which in turn drives the first connecting rod 4 to swing. The first connecting rod 4 drives the first impact shaft 5 to reciprocate within the first through hole (one end of the first impact shaft 5 reciprocates in and out of the first through hole). Under the action of the second support pin 8 and the second slide groove 72, the reciprocating motion of the first impact shaft 5 within the first through hole drives the second connecting rod 7 to swing back and forth. Combined with the action of the first slide groove 71 and the first support pin 61, when one end of the first impact shaft 5 moves out of the frame 1 and the first through hole, the first impact shaft 5 drives one end of the second connecting rod 7 to move closer to the first through hole, while the other end of the second connecting rod 7 moves away from the second through hole. The second connecting rod 7 then drives the second impact shaft 6 to move into the frame 1 and the second through hole. Conversely, when the first impact shaft 5 moves into the frame 1 and the second through hole, the first impact shaft 5 drives one end of the second connecting rod 7 to move away from the first through hole, while the other end of the second connecting rod 7 moves closer to the second through hole. The second connecting rod 7 then drives one end of the second impact shaft 6 to move out of the frame 1 and the second through hole (e.g., ...). Figure 2 (as shown) Thus, when massage heads are installed at the ends of the first impact shaft 5 and the second impact shaft 6 away from the second connecting rod 7, and the first impact shaft 5 moves out of the first through hole to drive the massage head to perform a tapping massage, the second impact shaft 6 enters the frame 1 to drive the massage head to retract. Then, when the first impact shaft 5 enters the frame 1 to drive the massage head to retract, the second impact shaft 6 moves out of the second through hole to drive the massage head to perform a tapping massage. This process is repeated to achieve alternating and uninterrupted tapping massage from the massage heads on the first impact shaft 5 and the second impact shaft 6. Compared to existing fascia guns where the two massage heads move synchronously, the transmission structure of this double-headed fascia gun mechanism has no gaps in the tapping massage, resulting in a better user experience.

[0016] like Figure 2 As shown, two second crossbars 62 are fixedly installed on one end of the second impact shaft 6 directly opposite the second connecting rod 7, and a first support pin 61 is fixedly installed between the two second crossbars 62. The two sides of the second connecting rod 7 are in contact with one of the second crossbars 62 respectively. By setting two second crossbars 62, the second link 7 can move in the gap between the two second crossbars 62 during the swinging process without contacting or colliding with the second impact shaft 6. Furthermore, the second link 7 is in contact with one of the second crossbars 62 on each side, which can limit the movement of the second link 7 and make the second link 7 swing stably.

[0017] like Figure 2 As shown, a shock-absorbing rubber sleeve 9 (which can be made of silicone) is fixed to the inner wall of the first through hole and the second through hole. A wear-resistant part 10 is fixedly installed on the inner wall of the shock-absorbing rubber sleeve 9. The wear-resistant part 10 is in contact with the outer surface of the first impact shaft 5 and the second impact shaft 6. By setting the shock-absorbing rubber sleeve 9, the vibration of the first impact shaft 5 and the second impact shaft 6 during movement can be reduced, and the noise generated by the vibration can be reduced. The wear-resistant part 10 set in this way can reduce the wear of the first impact shaft 5 and the second impact shaft 6 and improve their service life.

[0018] like Figure 2 As shown, two first crossbars 51 are fixedly installed on one end of the first impact shaft 5 opposite to the second connecting rod 7. The second connecting rod 7 is hinged between the two first crossbars 51, and each side of the second connecting rod 7 contacts one of the first crossbars 51. By setting two first crossbars 51, the second link 7 can move in the gap between the two first crossbars 51 during the swinging process without contacting or colliding with the first impact shaft 5. Furthermore, the second link 7 is in contact with one of the first crossbars 51 on each side, which can further limit the movement of the second link 7 and make the second link 7 swing stably.

[0019] A double-headed fascia gun includes a transmission structure of the double-headed fascia gun mechanism and an outer housing (not shown in the figure; the outer housing has two movable holes for the first impact shaft 5 and the second impact shaft 6 to move through, respectively). Specifically, during assembly and use, the transmission structure of the double-headed fascia gun mechanism can be installed as a whole inside the outer housing, such as by fixing it to the outer housing with screws through the frame 1. The installation and assembly are simple and quick.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A transmission structure of a double-head fascia gun movement, comprising a motor (2), the output end of the motor (2) is fixedly installed with an eccentric wheel (3), the eccentric shaft of the eccentric wheel (3) is connected with a first connecting rod (4) through a bearing, characterized in that, Also includes: The frame (1) is fixed to the motor (2), and the frame (1) has a first through hole and a second through hole. The first impact shaft (5) is connected to the first impact shaft (5) by a bearing at one end of the first connecting rod (4), and the first impact shaft (5) is movably disposed in the first through hole; The second impact shaft (6) is movably disposed within the second through hole; The second connecting rod (7) has one end hinged to one end of the first impact shaft (5), and the second connecting rod (7) has a first groove (71) and a second groove (72). The first support pin (61) is fixed to one end of the second impact shaft (6) and passes through the first slide groove (71). The second support pin (8) is fixed on the frame (1) and passes through the second slide groove (72). When the motor (2) drives the eccentric wheel (3) to rotate, the first impact shaft (5) and the second impact shaft (6) alternately move through the first through hole and the second through hole.

2. The drive structure of the double-head flmmer mechanism according to claim 1, characterized in that: Two second crossbars (62) are fixedly installed on one end of the second impact shaft (6) opposite to the second connecting rod (7). A first support pin (61) is fixedly installed between the two second crossbars (62). The two sides of the second connecting rod (7) are in contact with one second crossbar (62) respectively.

3. The double-barreled flmmer mechanism drive structure according to claim 1, characterized in that: The inner walls of the first through hole and the second through hole are fixed with shock-absorbing rubber sleeves (9), and wear-resistant parts (10) are fixedly installed on the inner walls of the shock-absorbing rubber sleeves (9). The wear-resistant parts (10) are in contact with the outer surfaces of the first impact shaft (5) and the second impact shaft (6).

4. The drive structure of the double-head flmmer mechanism according to claim 2, characterized in that: Two first crossbars (51) are fixedly installed on one end of the first impact shaft (5) opposite to the second connecting rod (7). The second connecting rod (7) is hinged between the two first crossbars (51). The two sides of the second connecting rod (7) are in contact with one of the first crossbars (51).

5. A dual-headed fascia gun characterized by: The transmission structure includes the dual-head fascia gun mechanism according to any one of claims 1-4.

6. The dual-headed fascia gun of claim 5, wherein: The massage head can be detached and fixedly installed at the end of the first impact shaft (5) and the second impact shaft (6) away from the second connecting rod (7).

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