Multi-head tapping massager

Abstract

The utility model relates to a multi-head tapping massager which comprises a shell, a motor, an eccentric shaft and massage heads driven by the eccentric shaft to reciprocate. A shaft sleeve hole is formed in one end of the connecting rod, a pin shaft parallel to the axis of the shaft sleeve hole is arranged at the other end of the connecting rod, the connecting rod is arranged on an eccentric shaft on a locking motor shaft in a sleeved mode through the shaft sleeve hole, and the other pin shaft is rotatably inserted into a center hole of the horseshoe rod. The horseshoe rod is provided with a cross beam and two parallel foot rods, the two foot rods extend out of the through hole of the shell, and a guide rubber sleeve is arranged between the two foot rods and the through hole; and the massage head is inserted into the end part of the foot rod. The horseshoe-shaped rod is divided into the two foot rods, each foot rod is provided with one massage head and spans the two sides of the motor shaft, compact distribution is formed, and combination of more than two even massage heads can be achieved conveniently. The motor drags the horseshoe rod through the connecting rod, and synchronism of the two foot rods of the horseshoe rod can be well kept.

Description

Technical field:

[0001] The utility model belongs to the technical field of massage equipment, and particularly relates to a multi-head percussion massager, in particular to a scheme with four massage heads. Background technology:

[0002] The structural principle of the fascia gun is very traditional. The eccentric wheel is directly locked on the motor shaft. The eccentric wheel pulls the impact shaft to reciprocate through the connecting rod, realizing the conversion of the rotation of the motor shaft into the linear motion of the impact shaft. The patent bulletin discloses documents ranging from one to four massage heads. For example:

[0003] CN202220255018.6 discloses a multi-head fascia gun, comprising a shell, a massage head and a drive mechanism, wherein the massage head is detachably connected to the drive mechanism and is located on one side of the shell; that is, a plurality of eccentric drive assemblies are fixed side by side on the motor shaft, each eccentric drive assembly is connected to a corresponding transmission assembly, each transmission assembly is connected to a corresponding massage head, and the plurality of transmission assemblies drive the corresponding massage heads to move in and out equidistantly to achieve multi-point massage.

[0004] CN202220764493.6 discloses a fascia gun, and particularly relates to a multi-head fascia gun, including a main body, on which a massage assembly for massaging a human body is provided, the massage assembly including a plurality of connecting rods for assembling massage heads, the massage heads reciprocate along the axial direction of the connecting rods to achieve massage, and the axial directions of all the connecting rods are parallel to each other and located in the same plane. The patent also discloses the use of a double-output shaft motor, with two eccentric wheel assemblies on each side of the output shaft, and drives the two massage heads to produce massage actions.

[0005] In the above two solutions, four or more massage heads are arranged in a row, and the distribution is defective. Summary of the invention:

[0006] The utility model aims to design a multi-head percussion massager in which an eccentric wheel pulls a horseshoe rod through a connecting rod to drive two massage heads to move.

[0007] The technical solution of the utility model is implemented as follows: a multi-head percussion massager, including a shell, a motor, an eccentric shaft and a massage head driven by the eccentric shaft to reciprocate; characterized in that: it also includes a connecting rod and a horseshoe rod, one end of the connecting rod is formed with a shaft sleeve hole, and the other end is provided with a pin parallel to the axis of the shaft sleeve hole, the connecting rod is sleeved on the eccentric shaft on the locking motor shaft by means of the shaft sleeve hole, and the other pin can be rotatably inserted in the center hole of the horseshoe rod; the horseshoe rod has a crossbeam and two parallel foot rods, the two foot rods extend out of the through holes of the shell, and a guide rubber sleeve is arranged between the through holes; the massage head is inserted at the end of the foot rod.

[0008] The shell includes a bottom shell and a surface shell, with corresponding gripping hollow parts formed on both sides, a sunken area that can accommodate and install the motor is formed in the center of the bottom shell, and four through holes are formed in the sunken area; the motor is a double-headed shaft, and an eccentric shaft is locked on each shaft, each driving a horseshoe rod and a massage head to move.

[0009] A guide pin is also provided on the crossbeam of the horseshoe rod connecting the two leg rods, and a limiting groove is correspondingly provided on the bottom shell, and the guide pin falls into the limiting groove when assembled in place.

[0010] The horseshoe rod is provided with a guide pin on both sides of the center hole of the cross beam, and the guide pin protrudes from the two sides of the cross beam and falls into two parallel limit grooves on the bottom shell to restrict it to move up and down.

[0011] The eccentric shaft refers to a plastic block, with an axial hole matching the motor output shaft formed on one side of the plastic block and an axial protrusion formed on the other side. The axial protrusion does not overlap with the central axis of the axial hole, and the offset is between 0.2mm and 0.5mm.

[0012] A bearing is arranged between the shaft protrusion of the eccentric shaft and the shaft sleeve hole of the connecting rod.

[0013] The utility model divides two foot rods into two legs through a horseshoe rod, each with a massage head, and straddles the two sides of the motor shaft to form a compact distribution, which is convenient for realizing the combination of more than two even number massage heads; the motor then pulls the horseshoe rod through the connecting rod, which can better maintain the synchronization of the two leg rods of the horseshoe rod. Description of the drawings:

[0014] The present invention will be further described below in conjunction with specific illustrations:

[0015] Figure 1 Schematic diagram of a multi-head percussion massager

[0016] Figure 2 Schematic diagram of the multi-head percussion massager

[0017] Figure 3 Schematic diagram of the internal structure of a multi-head percussion massager

[0018] Figure 4 Schematic diagram of eccentric shaft

[0019] in

[0020] 1—shell; 11—bottom shell; 111—hollow portion; 112—sinking area; 113—perforation; 114—guiding rubber sleeve;

[0021] 115—limiting groove; 12—surface shell; 121—reserved hole;

[0022] 2—motor; 21—control board;

[0023] 3—eccentric shaft; 31—shaft hole; 32—shaft protrusion;

[0024] 4—connecting rod; 41—sleeve hole; 42—pin; 43—bearing;

[0025] 5—horseshoe rod; 51—crossbeam; 511—center hole; 512—guide pin; 52—foot rod;

[0026] 6—Massage head; Specific implementation method:

[0027] Reference Figure 1 , Figure 2 and Figure 3 The multi-head percussion massager comprises a shell 1, a motor 2, an eccentric shaft 3, a connecting rod 4, a horseshoe rod 5 and a massage head 6; the shell 1 comprises a bottom shell 11 and a surface shell 12, and a gripping hollow portion 111 is formed on both sides correspondingly. The bottom shell 11 faces the human body, and a sinking area 112 is formed in the center thereof for accommodating and installing the motor. A massage surface is formed on the outer side of the sinking area 112, and for this purpose, a perforation 113 corresponding to the number of the massage heads 6 is also opened on the sinking area 112; the eccentric shaft 3 is locked on the shaft of the motor 2 and converted into eccentric rotation.

[0028] One end of the connecting rod 4 is formed with a sleeve hole 41, and the other end is provided with a pin 42 parallel to the axis of the sleeve hole. The connecting rod 4 is sleeved on the eccentric shaft 3 by means of the sleeve hole 41, and the other pin 42 can be rotatably inserted in the center hole of the horseshoe rod 5 to pull the horseshoe rod 5 to reciprocate.

[0029] The horseshoe rod 5 has a crossbeam 51 and two parallel foot rods 52, and a center hole 511 is opened in the center of the crossbeam 51; the two foot rods 52 extend out of the through hole 113 of the shell, and a guide rubber sleeve 114 is arranged between the through hole 113 to maintain a movement gap between the foot rods and the through hole to avoid noise and resistance caused by contact between the two; the massage head 6 is directly inserted into the end of the foot rod 52, and the massage head 6 is generally made of rubber or hard foam and can be positioned by interference fit.

[0030] In this example, the motor 2 has a double-ended shaft, and an eccentric shaft 3 is locked on each shaft, each driving a horseshoe rod 5 and a massage head 6. The massage heads 6 are symmetrically distributed at both ends of the motor, forming a four-head structure. On this basis, eight-head or six-head structures can also be produced. If the motor 2 adopts a single-ended shaft, a combination of two-head, four-head, or even-numbered massage heads can be designed to meet various needs.

[0031] Furthermore, a guide pin 512 is provided on the crossbeam connecting the horseshoe rod 5 to the two foot rods, and a limit groove 115 is correspondingly provided on the bottom shell 11. When assembled in place, the guide pin 512 falls into the limit groove 115, allowing vertical sliding. If only one guide pin 512 is provided, the horseshoe rod 5 can still swing around the guide pin, and adaptively balance according to the different reaction forces of the two massage heads 6.

[0032] To this end, a guide pin 512 is provided on each side of the center hole 511 of the crossbeam, and the guide pin 512 protrudes from the two sides of the crossbeam and falls into two parallel limit grooves 115 on the bottom shell, restricting it to move up and down, thereby ensuring the synchronization of the two massage heads and the straight up and down tapping with a constant impact stroke.

[0033] Reference Figure 2 and Figure 4 The eccentric shaft 3 refers to a plastic block, and a shaft hole 31 matching the motor shaft is formed on one side of the plastic block, and a shaft protrusion 32 is formed on the other side. The shaft protrusion 32 does not overlap with the central axis of the shaft hole 31, and the offset is between 0.2mm and 0.5mm, so that the impact stroke of the massage head 6 can reach between 0.4mm and 1.0mm. The eccentric shaft 3 uses a plastic block to facilitate the selection of different strokes. Here, the shaft protrusion 32 is essentially equivalent to the eccentric shaft. In fact, it can also be directly bent at the motor shaft, but the process is difficult and the stroke is not easy to change.

[0034] In order to reduce noise and meet the requirement of long life, a bearing 43 is provided between the shaft protrusion 32 of the eccentric shaft and the shaft sleeve hole 41 of the connecting rod, and the movement resistance is also smaller.

[0035] In this example, a control board 21 for controlling the operation of the motor 2 is disposed on the housing 12. A reserved hole 121 is formed on the housing corresponding to the position of the onboard button of the control board 12. The control board 21 is locked on the inner surface of the housing, and the onboard button protrudes from the reserved hole 121 for easy operation. The control board 21 controls the on-off and speed regulation of the motor power supply, which is a conventional technology. In addition, a battery is also disposed in the sunken area of ​​the bottom housing 11, and the battery is used to provide the control board 21 and the motor 2 with working power.

Claims

1. A multi-head percussion massager, comprising a housing, a motor, an eccentric shaft and a massage head driven to reciprocate by the eccentric shaft; characterized in that: It also includes a connecting rod and a horseshoe rod, one end of the connecting rod is formed with a sleeve hole, and the other end is provided with a pin shaft parallel to the axis of the sleeve hole. The connecting rod is sleeved on the eccentric shaft on the locking motor shaft with the help of the sleeve hole, and the pin shaft at the other end can be rotatably inserted in the center hole of the horseshoe rod; the horseshoe rod has a crossbeam and two parallel foot rods, the two foot rods extend out of the through holes of the shell, and a guide rubber sleeve is arranged between the through holes; the massage head is inserted at the end of the foot rod.

2. A multi-head percussion massager according to claim 1, characterized in that: The shell includes a bottom shell and a surface shell, with corresponding gripping hollow parts formed on both sides, a sunken area that can accommodate and install the motor is formed in the center of the bottom shell, and four through holes are formed in the sunken area; the motor is a double-headed shaft, and an eccentric shaft is locked on each shaft, each driving a horseshoe rod and a massage head to move.

3. A multi-head percussion massager according to claim 1 or 2, characterized in that: A guide pin is also arranged on the crossbeam of the horseshoe rod connecting the two leg rods, and a limiting groove is correspondingly arranged on the bottom shell, and the guide pin falls into the limiting groove when assembled in place.

4. A multi-head percussion massager according to claim 3, characterized in that: The horseshoe rod is provided with a guide pin on both sides of the center hole of the cross beam, and the guide pin protrudes from the two sides of the cross beam and falls into two parallel limit grooves on the bottom shell to restrict it to move up and down.

5. A multi-head percussion massager according to claim 1 or 2, characterized in that: The eccentric shaft refers to a plastic block with a shaft hole matching the motor shaft formed on one side of the plastic block and a shaft protrusion formed on the other side. The shaft protrusion does not overlap with the center axis of the shaft hole, and the offset is between 0.2mm and 0.5mm.

6. A multi-head percussion massager according to claim 5, characterized in that: A bearing is arranged between the shaft protrusion of the eccentric shaft and the shaft sleeve hole of the connecting rod.

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