Connecting rod driving mechanism and fascia gun

Abstract

The utility model discloses a connecting rod driving mechanism and a fascia gun, and relates to the technical field of fascia guns, the connecting rod driving mechanism comprises a connecting rod, one end of the connecting rod is provided with a first mounting hole along the direction vertical to the length direction; a through hole is formed in the impact shaft in the axial direction of the impact shaft, one end of the connecting rod extends into the through hole, the connecting rod is not in contact with the through hole, and a second mounting hole is formed in the impact shaft in the direction perpendicular to the axial direction of the impact shaft; according to the connecting rod driving mechanism and the fascia gun, the connecting rod and the impact shaft are hinged and fixed together through the connecting shaft, by arranging the soft rubber part, when the connecting rod moves to pull the impact shaft to reciprocate, noise caused by transmission can be greatly reduced, and therefore the purpose of noise reduction is achieved; meanwhile, the connecting rod partially extends into the through hole, so that the length and the size of the whole connecting rod driving mechanism can be reduced, the size of the whole fascia gun is smaller, and the fascia gun is more convenient to carry by people.

Description

Technical Field

[0001] The utility model relates to the technical field of fascia guns, in particular to a connecting rod drive mechanism and a fascia gun. Background Art

[0002] With the improvement of people's living quality, massage devices have gradually become common tools for people's health care and relaxation. For example, a fascia gun, also known as a deep muscle fascia impactor, is a soft tissue rehabilitation tool that relaxes the soft tissues of the body through high-frequency impacts.

[0003] At present, the fascia guns on the market use a connecting rod with a bearing and a sleeve connection. Since the connection point is at the very front end of the first connecting rod, it will cause a large-angle swing during the driven movement, resulting in the generation of noise. The bearing needs to be coated with noise-reducing oil. In the case of high-speed vibration of the bearing, the noise-reducing oil will overflow, and the concentration of the noise-reducing oil is not easy to configure. The manufacturing process requirements for the bearing are relatively high. The collision between the small balls in the bearing and the bearing wall will also cause the generation of noise. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a connecting rod drive mechanism and a fascia gun to solve the problem of large noise existing in the existing fascia guns during use.

[0005] To solve the above technical problems, the utility model provides the following technical solutions: A connecting rod drive mechanism includes:

[0006] A connecting rod, one end of which is provided with a first mounting hole along a direction perpendicular to its length direction;

[0007] An impact shaft, which is provided with a through hole along its axial direction. One end of the connecting rod extends into the through hole, and the connecting rod does not contact the through hole. The impact shaft is provided with a second mounting hole along a direction perpendicular to its axial direction;

[0008] A connecting shaft, which is located in the first mounting hole and the second mounting hole;

[0009] A soft rubber part, which is located in the through hole and the first mounting hole, and the soft rubber part is in close contact with the inner wall of the through hole and is located outside the connecting shaft.

[0010] Preferably, a first wear-resistant part is provided between the soft rubber part and the connecting shaft.

[0011] Preferably, the soft rubber part includes a gasket and an O-ring. Gaskets are provided on both the top surface and the bottom surface of the first wear-resistant part. The gasket is in close contact with the inner wall of the through hole. An O-ring is sleeved on the outer wall of the first wear-resistant part. There is a gap between the first wear-resistant part and the first mounting hole.

[0012] Preferably, the material of the soft rubber part is rubber or silica gel.

[0013] Preferably, the first wear-resistant member is a composite bushing.

[0014] A fascia gun includes the connecting rod driving mechanism described above, and also includes a housing, a driving motor, an eccentric wheel, and a massage assembly. The output end of the driving motor is connected to the eccentric wheel to drive the eccentric wheel to rotate. The eccentric shaft on the eccentric wheel is connected to the connecting rod, and the impact shaft movably penetrates through the side of the housing and one end is detachably and fixedly installed with the massage assembly.

[0015] Preferably, the housing includes a first outer shell and a second outer shell that are detachably and fixedly connected. At least one lighting hole is provided on the top surfaces of the first outer shell and the second outer shell. A light guide column is provided in the lighting hole, and a light-shielding rubber block is provided on the periphery of the light guide column. There are two light-shielding rubber blocks. A circuit board is provided inside the housing, and an indicator light is provided on the circuit board. The light guide column is located directly above the indicator light.

[0016] Preferably, a rubber member is provided on the top surface of the circuit board, and a plastic button is provided on the top surface of the rubber member. The plastic button passes through the top of the housing.

[0017] Preferably, a first shock-absorbing rubber ring is provided inside the housing, and the driving motor is fixedly connected to the first shock-absorbing rubber ring.

[0018] Preferably, a second wear-resistant member and a second shock-absorbing rubber ring are sequentially provided on the outer surface of the impact shaft, and the second shock-absorbing rubber ring is in contact with the inner wall of the housing.

[0019] Compared with the prior art, the beneficial effects that the present utility model can achieve are:

[0020] In the present utility model, the connecting rod and the impact shaft are hinged and fixed together by using a connecting shaft. By providing a soft rubber member, when the connecting rod moves to drive the impact shaft to reciprocate, the noise caused by transmission can be greatly reduced, thereby achieving the purpose of noise reduction. At the same time, by making part of the connecting rod extend into the through hole, the length and volume of the entire connecting rod driving mechanism can be reduced, making the entire fascia gun smaller in size, and thus more convenient for people to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the fascia gun of the present utility model;

[0022] Figure 2 is the present utility model Figure 1 sectional structural diagram;

[0023] Figure 3 is a schematic structural diagram of the second outer shell, lighting hole, light guide column, light-shielding rubber block and circuit board of the present utility model;

[0024] Figure 4 is a sectional structural diagram of the connecting rod, soft rubber member and connecting shaft of the present utility model;

[0025] Figure 5 This is a schematic cross-sectional structure diagram of the connecting rod, soft rubber part, connecting shaft and first wear-resistant part of the present utility model;

[0026] Figure 6 This is a schematic cross-sectional structure diagram of the connecting rod, gasket, O-ring and first wear-resistant part of the present utility model;

[0027] Wherein: 1. Machine shell; 101. First outer shell; 102. Second outer shell; 1021. Lighting hole; 2. Connecting rod; 3. Impact shaft; 4. Soft rubber part; 41. Gasket; 42. O-ring; 5. Connecting shaft; 6. First wear-resistant part; 7. Light guide column; 8. Light-shielding rubber block; 9. Circuit board; 10. Driving motor; 11. Eccentric wheel; 12. First shock-absorbing rubber ring; 13. Massage assembly; 14. Battery; 15. Rubber part; 16. Plastic button; 17. Second wear-resistant part; 18. Second shock-absorbing rubber ring. Detailed implementation manners

[0028] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present utility model, not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all belong to the protection scope of the present utility model.

[0029] As Figure 1 , Figure 2 and Figure 4 shown, the present utility model provides a connecting rod drive mechanism, including a connecting rod 2, an impact shaft 3, a connecting shaft 5 and a soft rubber part 4;

[0030] One end of the connecting rod 2 is provided with a first mounting hole along a direction perpendicular to its length;

[0031] The impact shaft 3 is provided with a through hole along its axial direction. One end of the connecting rod 2 extends into the through hole, and the connecting rod 2 does not contact the through hole. The impact shaft 3 is provided with a second mounting hole along a direction perpendicular to its axial direction;

[0032] The connecting shaft 5 is located in the first mounting hole and the second mounting hole;

[0033] The soft rubber part 4 is located in the through hole and the first mounting hole. The soft rubber part 4 is in close contact with the inner wall of the through hole and is located outside the connecting shaft 5;

[0034] Since the connecting shaft 5 hinges and fixes the connecting rod 2 and the impact shaft 3 together, by setting the soft rubber part 4, when the connecting rod 2 moves to drive the impact shaft 3 to reciprocate, the noise caused by transmission can be greatly reduced, thereby achieving the purpose of noise reduction;

[0035] At the same time, by partially extending the connecting rod 2 into the through hole, the length and volume of the entire connecting rod driving mechanism can be reduced, making the entire fascia gun smaller and more convenient for people to carry.

[0036] like Figure 5 As shown, a first wear-resistant part 6 is provided between the soft rubber part 4 and the connecting shaft 5;

[0037] By providing the first wear-resistant part 6 , direct contact and wear between the connecting shaft 5 and the soft rubber part 4 can be avoided, thereby increasing the service life of the soft rubber part 4 .

[0038] like Figure 6 As shown, the soft rubber part 4 includes a gasket 41 (a soft rubber pad or a plastic pad can be used here) and an O-ring 42. The top and bottom surfaces of the first wear-resistant part 6 are both provided with gaskets 41, and the gaskets 41 are tightly attached to the inner wall of the through hole. The outer wall of the first wear-resistant part 6 is sleeved with an O-ring 42, and there is a gap between the first wear-resistant part 6 and the first mounting hole.

[0039] The soft plastic part 4 can also be Figure 4 and Figure 5 The I-shaped structure shown in the figure uses relatively more material of the soft rubber part 4. By configuring the soft rubber part 4 in this way, it is possible to reduce the material of the soft rubber part 4 as much as possible while ensuring the noise reduction.

[0040] The soft rubber part 4 is made of rubber or silicone and has a good buffering and noise reduction function.

[0041] The first wear-resistant part 6 is a composite sleeve, specifically a POM sleeve or a Teflon sleeve, which has good wear resistance.

[0042] like Figure 1 and Figure 2 As shown, a fascia gun includes a connecting rod driving mechanism, a housing 1, a driving motor 10, an eccentric wheel 11 and a massage component 13, the output end of the driving motor 10 is connected to the eccentric wheel 11 to drive the eccentric wheel 11 to rotate, the eccentric shaft on the eccentric wheel 11 is connected to the connecting rod 2, the impact shaft 3 movably passes through the side of the housing 1 and one end of the massage component 13 is detachably fixedly installed;

[0043] By starting the driving motor 10, the eccentric wheel 11 is driven to rotate, the eccentric wheel 11 drives the connecting rod 2 to move, the connecting rod 2 drives the impact shaft 3 to perform reciprocating telescopic motion, and finally the impact shaft 3 drives the massage component 13 to perform percussion massage.

[0044] like Figure 2 and Figure 3As shown in the figure, the housing 1 includes a first outer shell 101 and a second outer shell 102 that are detachably and fixedly connected (specifically, they can be disassembled and assembled by screws. Usually, after positioning through threaded posts, they are locked and fixed with screws). At least one light hole 1021 is provided on the top surfaces of both the first outer shell 101 and the second outer shell 102. A light guide column 7 is provided in the light hole 1021. A light-shielding rubber block 8 is provided around the light guide column 7. There are two light-shielding rubber blocks 8. A circuit board 9 is provided inside the housing 1. An indicator light is provided on the circuit board 9. The light guide column 7 is located directly above the indicator light;

[0045] By providing two separate light-shielding rubber blocks 8, it is convenient for assembly. Specifically, first, each light-shielding rubber block 8 is respectively assembled with the light guide column 7 to form an assembled part. Then, one end of the light guide column 7 of the assembled part is inserted into the light hole 1021. Finally, the first outer shell 101 and the second outer shell 102 are assembled. Compared with the existing technology that directly uses a single light-shielding rubber block 8, it can avoid the trouble of having to bend the light-shielding rubber block 8 to obliquely insert the remaining light guide column 7 into the light hole 1021 of the second outer shell 102 or the first outer shell 101 when assembling the first outer shell 101 and the second outer shell 102 while inserting part of the light guide column 7 into the light hole 1021 on the first outer shell 101 or the second outer shell 102.

[0046] As Figure 2 shown in the figure, a rubber part 15 is provided on the top surface of the circuit board 9. A plastic button 16 is provided on the top surface of the rubber part 15 (the plastic button 16 can be used to control the start of the fascia gun for pounding massage. The specific control principle is prior art and will not be elaborated here). The plastic button 16 passes through the top of the housing 1;

[0047] By setting it like this, the feel of the button is better. The rubber part 15 has buffering, avoiding the direct contact between the plastic button 16 and the circuit board 9, reducing the wear on the circuit board 9 to a certain extent, and at the same time achieving a certain noise reduction effect.

[0048] As Figure 2 shown in the figure, a first shock-absorbing rubber ring 12 is provided inside the housing 1. The drive motor 10 is fixedly connected to the first shock-absorbing rubber ring 12;

[0049] By providing the first shock-absorbing rubber ring 12, the noise generated by the vibration of the drive motor 10 during operation can be reduced.

[0050] As Figure 2 shown in the figure, a second wear-resistant part 17 (made of the same material as the first wear-resistant part 6) and a second shock-absorbing rubber ring 18 are successively provided on the outer surface of the impact shaft 3. The impact shaft 3 is slidably connected to the second wear-resistant part 17. The second shock-absorbing rubber ring 18 contacts the inner wall of the housing 1. By setting it like this, the noise generated when the impact shaft 3 reciprocates can be reduced, and at the same time, the wear of the impact shaft 3 during reciprocating motion can be reduced.

[0051] As Figure 2As shown, a battery 14 is further provided inside the casing 1 for supplying power to the drive motor 10 and the circuit board 9.

[0052] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connecting rod drive mechanism, characterized in that, Comprising: A connecting rod (2), one end of the connecting rod (2) is provided with a first mounting hole along a direction perpendicular to its length direction; An impact shaft (3), the impact shaft (3) is provided with a through hole along its axial direction, one end of the connecting rod (2) extends into the through hole, the connecting rod (2) does not contact the through hole, and the impact shaft (3) is provided with a second mounting hole along a direction perpendicular to its axial direction; A connecting shaft (5), the connecting shaft (5) is located in the first mounting hole and the second mounting hole; A soft rubber part (4), the soft rubber part (4) is located in the through hole and the first mounting hole, the soft rubber part (4) is closely attached to the inner wall of the through hole and is located outside the connecting shaft (5).

2. The link drive mechanism according to claim 1, wherein: A first wear-resistant part (6) is provided between the soft rubber part (4) and the connecting shaft (5).

3. The link drive mechanism according to claim 2, wherein: The soft rubber part (4) includes a gasket (41) and an O-ring (42), gaskets (41) are provided on both the top surface and the bottom surface of the first wear-resistant part (6), the gasket (41) is closely attached to the inner wall of the through hole, an O-ring (42) is sleeved on the outer wall of the first wear-resistant part (6), and there is a gap between the first wear-resistant part (6) and the first mounting hole.

4. The link drive mechanism according to claim 1, wherein: The material of the soft rubber part (4) is rubber or silica gel.

5. The link drive mechanism according to claim 2, characterized in that: The first wear-resistant part (6) is a composite bushing.

6. A fascia gun, characterized in that: Comprising the connecting rod driving mechanism according to any one of claims 1-5, further comprising a machine housing (1), a driving motor (10), an eccentric wheel (11) and a massage assembly (13), the output end of the driving motor (10) is connected to the eccentric wheel (11) to drive the eccentric wheel (11) to rotate, the eccentric shaft on the eccentric wheel (11) is connected to the connecting rod (2), and the impact shaft (3) movably penetrates through the side of the machine housing (1) and one end is detachably and fixedly installed with the massage assembly (13).

7. The fascia gun according to claim 6, wherein: The machine housing (1) includes a first outer shell (101) and a second outer shell (102) that are detachably and fixedly connected, at least one light hole (1021) is provided on the top surfaces of the first outer shell (101) and the second outer shell (102), a light guide column (7) is provided in the light hole (1021), a light-shielding rubber block (8) is provided outside the light guide column (7), there are two light-shielding rubber blocks (8), a circuit board (9) is provided in the machine housing (1), an indicator light is provided on the circuit board (9), and the light guide column (7) is located directly above the indicator light.

8. The fascia gun according to claim 7, wherein: A rubber part (15) is provided on the top surface of the circuit board (9), a plastic button (16) is provided on the top surface of the rubber part (15), and the plastic button (16) passes through the top of the machine housing (1).

9. The fascia gun according to claim 6, wherein: A first shock-absorbing rubber ring (12) is provided in the machine housing (1), and the driving motor (10) is fixedly connected to the first shock-absorbing rubber ring (12).

10. The fascia gun according to claim 6, wherein: A second wear-resistant part (17) and a second shock-absorbing rubber ring (18) are sequentially provided on the outer surface of the impact shaft (3), and the second shock-absorbing rubber ring (18) contacts the inner wall of the machine housing (1).

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