L-shaped hinged knocking head shaft handle eccentric mechanism
By designing an L-shaped hinged percussion head shaft handle eccentric mechanism, using the drive motor and eccentric wheel transmission to achieve high-frequency, synchronous percussion massage, the problem of poor massage intensity of existing car seat massagers is solved, and it has an automatic protection function.
Patent Information
- Application Number
- CN202521913732.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-05
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2035-09-05
AI Technical Summary
The existing car seat airbag massagers have poor massage intensity and cannot effectively relieve fatigue caused by long-term riding.
An L-shaped hinged eccentric mechanism of the striking head shaft handle was designed. The driving motor was used to drive the striking arm rocker structure to realize the extension and retraction of the striking head. The linkage between the eccentric wheel and the transmission arm was combined to improve the striking frequency and synchronization. The rotating shaft was used to drive the two groups of massage components to massage.
The rocker structure and eccentric wheel transmission achieve high-frequency and synchronous percussion massage, reduce the length requirement of the percussion arm, and can automatically retract the percussion head in an emergency to prevent secondary injury.
Smart Images

Figure CN223416463U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of massagers, in particular to an L-shaped hinged percussion head shaft handle eccentric mechanism. Background Art
[0002] As people's living standards improve, their demands for car seat comfort are also increasing. Most car seats can easily cause fatigue after long rides. Existing airbag massage systems have limited strength and provide limited relief. Car seats require mechanical massage functions to address this market demand. This mechanism was developed to address this need. Utility Model Content
[0003] The purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides an L-shaped hinged striking head shaft handle eccentric mechanism, which improves human sitting fatigue and improves blood circulation in the massage area by hammering.
[0004] The utility model discloses an L-shaped hinged knocking head shaft handle eccentric mechanism, which includes a shell, a massage component and a driving motor for driving the massage component to knock and massage, and is characterized in that: the massage component is provided with two groups, each group of massage components includes two knocking arms arranged in an L shape and a knocking head arranged at the end of the knocking arm, each knocking arm is provided with a long slot hole, and a support shaft is provided at a position corresponding to each long slot hole on the shell, and the knocking arm can slide and rotate relative to the support shaft through the long slot hole to form a seesaw structure, so that one end of the knocking arm is the knocking end and the other end is the driving end, the knocking head is provided on the knocking end, and the driving motor acts on the driving end to drive the knocking arm to swing, extend out or retract the shell to achieve knocking.
[0005] By adopting the above technical solution, in the initial state, the knocking head is retracted into the shell. When the knocking head needs to be extended, the driving motor drives the driving end to be pressed down. Due to the principle of the seesaw structure, when one end is pressed down, the other end will tilt upward, so that the knocking arm swings upright, so that the knocking head extends out of the shell, and the driving end can continue to drive the knocking head back into the shell by lifting. Continuous downward and upward pressure can achieve knocking massage, and when the seesaw swings, it actually swings along an arc, with vertical and lateral displacement changes, and we only need vertical displacement. At this time, it slides relative to the support shaft through the long slot hole, thereby overcoming the obstacle of lateral displacement, and the L-shaped setting of the knocking arm can facilitate the extension of the knocking head, reduce the length requirement of the knocking arm, and the knocking head can be stored when not in use.
[0006] The present invention is further configured as follows: the driving ends of the two knocking arms of each massage assembly are hingedly matched so that the two knocking arms are distributed in a V-shape.
[0007] By adopting the above technical solution, the two knocking arms can be controlled to swing simultaneously by controlling the hinge points of the two knocking arms. The high synchronization rate leads to better massage effects.
[0008] The utility model is further configured as follows: the shell is also provided with a transmission arm for driving the driving end to swing, and an eccentric wheel for driving the transmission arm to extend and retract. The eccentric wheel cooperates with the driving motor so that the eccentric wheel can rotate relatively to drive the transmission arm to swing and retract. A slide groove arranged in a vertical direction is provided on the transmission arm, and a guide shaft is provided on the shell at a position corresponding to the slide groove. The transmission arm can slide and swing relative to the guide shaft through the slide groove, and a hinge shaft is also provided on the transmission arm, and the hinge shaft is passed through the driving end.
[0009] By adopting the above technical solution, the eccentric wheel is linked with the drive motor, so that the output shaft of the drive motor can drive the eccentric wheel to rotate. The eccentric wheel most preferably uses an eccentric shaft to drive the transmission arm to move. At this time, the eccentric shaft has an up and down and left and right displacement. The transmission arm can move up and down through the cooperation of the slide groove and the guide shaft, and the displacement in the left and right directions is overcome by the transmission arm swinging left and right relative to the guide shaft, thereby driving the knocking arm to lift or press down, and the use of the eccentric wheel and the transmission arm for driving can increase the frequency of knocking.
[0010] The utility model is further configured as follows: a rotating shaft is rotatably provided on the shell, and the rotating shaft is linked with the driving motor so that the rotating shaft can rotate relatively, and two sets of eccentric wheels and transmission arms are provided and located at opposite ends of the rotating shaft.
[0011] By adopting the above technical solution, two groups of massage components can be driven to perform massage at the same time through the rotating shaft, and its structural layout is more reasonable. The rotating shaft and the drive motor can be driven by a pulley. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the structure of the utility model when the striking head is extended;
[0013] Figure 2 This is an exploded view of the utility model;
[0014] Figure 3 This is a schematic diagram of the internal structure of the utility model;
[0015] Figure 4 It is a partial structural diagram of the utility model;
[0016] Figure 5 This is a schematic diagram of the transmission arm structure of the utility model;
[0017] Figure 6 This is a schematic diagram of the transmission arm structure of the utility model;
[0018] Figure 7This is a schematic diagram of the structure of the knocking arm of the utility model;
[0019] Figure 8 This is a structural diagram of the utility model when the striking head is retracted. DETAILED DESCRIPTION
[0020] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings:
[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0022] The present utility model discloses an L-shaped hinged knocking head shaft handle eccentric mechanism, comprising a shell 1, on which a massage component 2 and a drive motor 3 for driving the massage component 2 to knock and massage are provided. In the implementation case of the present utility model, the massage component 2 is provided with two groups, and each group of massage components 2 includes two knocking arms 21 arranged in an L shape and a knocking head 22 arranged at the end of the knocking arm 21, each knocking arm 21 is provided with a long slot hole 211, and a support shaft 4 is provided at a position corresponding to each long slot hole 211 on the shell 1, and the knocking arm 21 can slide and rotate relative to the support shaft 4 through the long slot hole 211 to form a seesaw structure, so that one end of the knocking arm 21 is a knocking end 212, and the other end is a drive end 213, the knocking head 22 is provided on the knocking end 212, and the drive motor 3 acts on the drive end 213, which can drive the knocking arm 21 to swing, extend out or retract the shell 1 to achieve knocking.
[0023] When the above technical solution is adopted and used, it is assembled on the car seat. In the initial state, the knocking head 22 is retracted into the shell 1. When the knocking head 22 needs to be extended, the driving motor 3 drives the driving end 213 to press down. Due to the principle of the seesaw structure, when one end is pressed down, the other end will tilt upward, so that the knocking arm 21 swings upright, so that the knocking head 22 extends out of the shell 1, and the driving end 213 is lifted up to continue to drive the knocking head 22 to retract into the shell 1. Continuous downward and upward pressure can achieve knocking massage. When the seesaw swings, it actually swings along an arc, with vertical and lateral displacement changes, and we only need vertical displacement. At this time, the long slot hole 211 slides relative to the support shaft 4, thereby overcoming the obstacle of lateral displacement, and the L-shaped setting of the knocking arm 21 can facilitate the extension of the knocking head 22, reduce the length requirement of the knocking arm 21, and the knocking head 22 can be stored when not in use.
[0024] The driving ends 213 of the two knocking arms 21 of each massage component 2 are hingedly matched so that the two knocking arms 21 are distributed in a V shape. By controlling the hinge points of the two knocking arms 21, the two knocking arms 21 can be controlled to swing simultaneously. The higher the synchronization rate, the better the massage effect.
[0025] The housing 1 is also provided with a transmission arm 5 for driving the driving end 213 to swing, and an eccentric wheel 6 for driving the transmission arm 5 to extend and retract. The eccentric wheel 6 is linked with the driving motor 3 so that the eccentric wheel 6 can rotate relatively to drive the transmission arm 5 to swing and retract. A slide groove 51 is provided on the transmission arm 5 in the vertical direction. A guide shaft 7 is provided at the position corresponding to the slide groove 51 on the housing 1. The transmission arm 5 can slide and swing relative to the guide shaft 7 through the slide groove 51. The transmission arm 5 is also provided with a hinge shaft 52. The hinge shaft 52 is passed through the driving end 213. Because the eccentric wheel 6 is linked with the driving motor 3, the output shaft of the driving motor 3 can drive the eccentric wheel 6 to Rotation, the eccentric wheel 6 is most preferably driven by an eccentric shaft to drive the transmission arm 5 to move. At this time, the eccentric shaft has an up and down and left and right displacement, and the transmission arm 5 can move up and down through the cooperation of the slide groove 51 and the guide shaft 7, and overcome the displacement in the left and right directions by swinging the transmission arm 5 left and right relative to the guide shaft 7, thereby driving the knocking arm 21 to lift or press down, and using the eccentric wheel 6 and the transmission arm 5 for driving can increase the frequency of knocking. When the car brakes suddenly or a collision occurs, if the knocking head is in an extended state, the external force pressing the knocking head 22 can be retracted into the shell 1, which can prevent secondary damage caused by the knocking head 22.
[0026] A rotating shaft 8 is rotatably provided on the shell 1, and the rotating shaft 8 is linked with the driving motor 3 so that the rotating shaft 8 can rotate relatively. The eccentric wheel 6 and the transmission arm 5 are each provided with two groups and are located at opposite ends of the rotating shaft 8. The rotating shaft 8 can simultaneously drive two groups of massage components 2 to perform massage, and its structural layout is more reasonable. The rotating shaft 8 and the driving motor 3 can be driven by a pulley.
Claims
1. An L-shaped hinged percussion head shaft handle eccentric mechanism, comprising a housing (1), a massage component (2) and a drive motor (3) for driving the massage component (2) to perform percussion massage, the housing (1) being provided with the massage component (2), characterized in that: The massage components (2) are provided with two groups, each group of massage components (2) includes two knocking arms (21) arranged in an L shape and a knocking head (22) arranged at the end of the knocking arm (21), each knocking arm (21) is provided with a long slot hole (211), and a support shaft (4) is provided on the shell (1) at a position corresponding to each long slot hole (211), and the knocking arm (21) can slide and rotate relative to the support shaft (4) through the long slot hole (211) to form a seesaw structure, so that one end of the knocking arm (21) is the knocking end (212) and the other end is the driving end (213), the knocking head (22) is provided on the knocking end (212), and the driving motor (3) acts on the driving end (213) to drive the knocking arm (21) to swing out of or retract the shell (1) to achieve knocking.
2. The L-shaped hinged striking head shaft handle eccentric mechanism according to claim 1, characterized in that: The driving ends (213) of the two knocking arms (21) of each group of massage components (2) are hingedly matched so that the two knocking arms (21) are distributed in a V-shape.
3. The L-shaped hinged striking head shaft handle eccentric mechanism according to claim 1 or 2, characterized in that: The housing (1) is further provided with a transmission arm (5) for driving the driving end (213) to swing, and an eccentric wheel (6) for driving the transmission arm (5) to extend and retract. The eccentric wheel (6) is linked with the driving motor (3) so that the eccentric wheel (6) can rotate relative to drive the transmission arm (5) to swing and retract. A slide groove (51) arranged in a vertical direction is provided on the transmission arm (5). A guide shaft (7) is provided on the housing (1) at a position corresponding to the slide groove (51). The transmission arm (5) can slide and swing relative to the guide shaft (7) through the slide groove (51). A hinge shaft (52) is also provided on the transmission arm (5). The hinge shaft (52) is passed through the driving end (213).
4. The L-shaped hinged striking head shaft handle eccentric mechanism according to claim 3, characterized in that: A rotating shaft (8) is rotatably provided on the housing (1), and the rotating shaft (8) is linked with the driving motor (3) so that the rotating shaft (8) can rotate relatively. Two sets of eccentric wheels (6) and transmission arms (5) are provided and are located at opposite ends of the rotating shaft (8).