Oscillating bar eccentric shaft type beating massage machine core structure for automobile seat

Abstract

The utility model discloses a swing rod eccentric shaft type beating massage machine core structure for an automobile seat, which comprises a machine shell and a massage module arranged in the machine shell, and the massage module comprises a driving assembly and at least one beating arm group driven by the driving assembly. Each beating arm group comprises two alternately swinging beating arms and massage heads arranged on the two beating arms, open holes corresponding to the massage heads are formed in the machine shell, the massage heads can be exposed out of the open holes, a main shaft driven by the driving assembly is arranged in the machine shell, each beating arm group is arranged on the main shaft, and the driving assembly is arranged on the main shaft. An eccentric part is arranged between each beating arm group and the main shaft, each eccentric part comprises two eccentric wheels which are fixed or integrally formed, and the two eccentric wheels are eccentrically arranged on the main shaft. The beating arm is directly sleeved on the eccentric wheel and is hinged with the corresponding swing rod, and the other end of the swing rod is hinged on the casing, so that the internal occupied space of the casing is reduced, and the structure is compact.

Description

Technical Field

[0001] The utility model relates to the technical field of massage devices, and more particularly to a rocker-and-eccentric-shaft-type percussion massage mechanism structure for automobile seats. Background Art

[0002] The prior art CN113208896B discloses a stowable safety massage seat for a vehicle, comprising a chair frame, the chair frame comprising a backrest and a cushion portion, a receiving cavity being provided on the back side of the backrest of the chair frame, a massage mechanism being provided in the receiving cavity, the massage mechanism comprising a frame, a knocking arm and a motor device, the frame being fixedly provided with a backrest plate, a layer of buffering member being provided between the backrest plate and the backrest of the chair frame, the knocking arm being hingedly provided on the frame, massage heads being provided on both sides of the hinge at the knocking arm, the backrest plate and the buffering member being provided with through holes, the motor device driving the knocking arm to swing so that the massage heads on both sides of the knocking arm can be alternately extended or retracted from the corresponding through holes respectively, and when the massage head on one side of the knocking arm extends out of the position of the through hole, the massage head is driven to swing by the external resistance force so that the massage heads on both sides of the knocking arm are placed inside the through hole and are in a stowed state.

[0003] The massage mechanism requires a push rod to transmit power between the eccentric wheel and the knocking arm, resulting in a large overall size of the casing and a non-compact overall structure. Further improvements are needed to the existing technology. Utility Model Content

[0004] The utility model overcomes the shortcomings of the prior art and has a reasonable structural design. The striking arm is directly sleeved on the eccentric wheel and hinged to the corresponding swing rod, and the other end of the swing rod is hinged to the casing, so that the space occupied inside the casing is reduced and the structure is compact.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A rocker arm eccentric shaft type percussion massage movement structure for a car seat comprises a casing and a massage module arranged in the casing, the massage module comprising a drive assembly and at least one group of percussion arm groups driven by the drive assembly, each group of percussion arm groups comprising two alternately swinging percussion arms and massage heads arranged on the two percussion arms, the casing being provided with openings corresponding to the massage heads and allowing the massage heads to be exposed, a main shaft driven by the drive assembly being provided in the casing, each group of percussion arm groups being arranged on the main shaft, an eccentric piece being provided between each group of percussion arm groups and the main shaft, the eccentric piece comprising two eccentric wheels which are fixed or integrally formed, the two eccentric wheels being eccentrically arranged on the main shaft, the two percussion arms being respectively sleeved on the two eccentric wheels, the two percussion arms of each group of percussion arm groups being hinged to a rocker arm, and the other end of each rocker arm being hinged to the casing.

[0007] By adopting the above technical solution, the striking arms are directly mounted on the eccentric wheels and hinged to the corresponding swing rods, the other end of which is hinged to the housing. This reduces the space occupied by the housing and makes the structure compact. When the main shaft rotates, the two striking arms of each striking arm group can be driven to swing alternately, thereby enabling the corresponding massage heads to alternately extend out of the openings to massage the user. The massage mechanism structure of the present application is specifically installed on a car seat for use, that is, the housing is arranged in the car seat, and a plurality of springs are connected between the housing and the car seat, which can provide a better buffering effect for the housing. In this specific embodiment, there are two sets of striking arm groups, and four openings are correspondingly provided. When a vehicle collides, the massage heads are retracted into the openings due to the impact of the human back, thereby reducing secondary damage caused by the massage mechanism. The two eccentric wheels can be integrally arranged and form an eccentric member. The eccentric member is provided with a hole for the main shaft to pass through. The two eccentric wheels are arranged in opposite directions on the main shaft, thereby achieving the alternating action of the striking arms.

[0008] Preferably, two parallel hinge sections are provided in the housing, and the other ends of the two swing rods of each knocking arm group are respectively hinged on the hinge sections.

[0009] By adopting the above technical solution, the hinge section is naturally arranged parallel to the main axis, which can ensure the consistency of the alternating movement of the massage heads of each group of percussion arms and facilitate the installation of the percussion arms and the rocker arms. Specifically, a hinge hole is provided in the hinge section, and the rocker arms can be hinged to the casing by passing an axis through the hinge hole and each rocker arm, which is easy to install.

[0010] Preferably, the drive assembly includes a motor, a driving pulley, a first belt connecting the motor output shaft and the driving pulley, a transmission pulley connected to the driving pulley through a connecting shaft, a driven pulley provided on the main shaft, and a second belt connecting the driven pulley and the transmission pulley.

[0011] By adopting the above technical solution, by setting up two-stage belts, namely the first belt and the second belt, the motor can indirectly drive the main shaft to rotate, and the transmission is stable. The use of the belt setting can produce a slip effect between the belt and the pulley. Compared with gear transmission, belt transmission has better safety in the event of a car collision.

[0012] Preferably, the main shaft is arranged in the middle of the housing, and the motor and the driving pulley are respectively arranged on both sides of the main shaft.

[0013] By adopting the above technical solution, the structure layout is more reasonable and compact, and the overall size of the casing can be further reduced.

[0014] Preferably, the main shaft and the connecting shaft are both arranged on the housing through at least one bearing, and a bearing is also provided between each striking arm and the corresponding eccentric wheel. An outer retaining ring is provided on the side of the striking arm, and an inner retaining ring is provided on the inner side of the outer retaining ring.

[0015] By adopting the above technical solution, the bearing can reduce the rotational friction of the corresponding components, and the outer retaining ring can block and limit the bearing at the knocking arm, while the setting of the inner retaining ring can block and limit the eccentric wheel.

[0016] Preferably, the housing includes a base and an upper cover, and a buffer layer is provided on the upper cover.

[0017] By adopting the above technical solution, the buffer layer is arranged on the side of the car seat close to the back of the human body, which can play a certain buffering and protective role and reduce injuries during car collisions.

[0018] Beneficial effects of the utility model:

[0019] The utility model has a reasonable structural design. The striking arm is directly sleeved on the eccentric wheel and is hinged to the corresponding swing rod, and the other end of the swing rod is hinged to the casing, so that the space occupied by the casing is reduced and the structure is compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the utility model reflecting the massage head being stored in the opening;

[0021] Figure 2 This is a schematic structural diagram of a specific embodiment of the present invention showing a portion of the massage head extending out of the opening;

[0022] Figure 3 This is a schematic diagram of the structure of a specific embodiment of the utility model when the striking arm is not swinging;

[0023] Figure 4 This is a structural diagram of a specific embodiment of the utility model reflecting the swinging of the striking arm;

[0024] Figure 5 This is a schematic diagram showing the internal structure of the housing according to a specific embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the knocking arm group according to the specific embodiment of the utility model. Figure 1 ;

[0026] Figure 7 This is a schematic diagram of the structure of the knocking arm group according to the specific embodiment of the utility model. Figure 2 ;

[0027] Figure 8 An exploded view of a striking arm assembly according to a specific embodiment of the present invention;

[0028] Figure 9 This is a structural diagram of an eccentric member according to a specific embodiment of the present invention;

[0029] Figure 10 This is a structural schematic diagram of a specific embodiment of the present invention reflecting that the housing is installed on a car seat.

[0030] In the figure: 100, seat; 200, spring; 1, casing; 11, opening; 12, hinged section; 13, base; 14, upper cover; 15, buffer layer; 2, massage module; 3, drive assembly; 31, motor; 32, driving pulley; 33, first belt; 34, transmission pulley; 35, connecting shaft; 36, second belt; 4, knocking arm group; 41, knocking arm; 42, massage head; 43, outer retaining ring; 44, inner retaining ring; 5, main shaft; 6, eccentric piece; 61, eccentric wheel; 7, rocker arm; 8, bearing. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] like Figure 1-10 As shown, a rocker eccentric shaft type percussion massage movement structure for a car seat includes a housing 1 and a massage module 2 arranged in the housing 1. The massage module 2 includes a driving component 3 and at least one set of percussion arm groups 4 driven by the driving component 3. Each set of percussion arm groups 4 includes two alternately swinging percussion arms 41 and massage heads 42 arranged on the two percussion arms 41. The housing 1 is provided with an opening 11 corresponding to the massage head 42 and through which the massage head 42 can be exposed. A main shaft 5 driven by a driving assembly 3 is provided, each group of striking arm groups 4 is arranged on the main shaft 5, an eccentric piece 6 is provided between each group of striking arm groups 4 and the main shaft 5, the eccentric piece 6 includes two eccentric wheels 61 that are fixed or integrally formed, the two eccentric wheels 61 are eccentrically arranged on the main shaft 5, and the two striking arms 41 are respectively sleeved on the two eccentric wheels 61. The two striking arms 41 of each group of striking arm groups 4 are hinged to a rocker rod 7, and the other end of each rocker rod 7 is hinged to the casing 1.

[0033] By adopting the above technical solution, the knocking arms 41 are directly sleeved on the eccentric wheel 61 and are hinged with the corresponding swing rod 7, the other end of which is hinged on the housing 1, so that the internal space occupied by the housing 1 is reduced and the structure is compact. When the main shaft 5 rotates, the two knocking arms 41 of each group of knocking arm groups 4 can be driven to swing alternately, thereby achieving the corresponding massage heads 42 to alternately extend out of the openings 11, thereby achieving massage for the user. The massage movement structure of the present application is specifically installed on the car seat 100 for use, and a plurality of springs 200 are connected between the housing 1 and the car seat 100, and the springs 200 can play a better cushioning effect on the housing 1. In this specific embodiment, the knocking arm groups 4 are provided with two groups, and the openings are correspondingly provided with four groups. When the vehicle collides, the massage heads 42 are retracted into the openings due to the effect of the back of the human body, thereby reducing the secondary damage caused by the massage movement mechanism. The two eccentrics 61 can be integrally provided to form an eccentric member 6 , and the eccentric member 6 is provided with a hole for the main shaft 5 to pass through. The two eccentrics 61 are provided in opposite directions on the main shaft 5 , thereby realizing the alternating action of the striking arm 41 .

[0034] Two parallel hinge sections 12 are provided in the casing 1, and the other ends of the two rocker arms 7 of each beating arm group 4 are respectively hinged on the hinge sections 12. With this arrangement, the hinge sections 12 are naturally also arranged parallel to the main shaft 5, which can ensure the consistency of the alternating movement of the massage heads 42 of each beating arm group 4, and facilitate the installation of the beating arms 41 and the rocker arms 7. Specifically, a hinge hole is provided in the hinge section 12, and the rocker arms 7 can be hinged to the casing 1 by passing an axis through the hinge hole and each rocker arm 7, which is easy to install.

[0035] In addition, the drive assembly 3 includes a motor 31, a driving pulley 32, a first belt 33 connecting the output shaft of the motor 31 and the driving pulley 32, a transmission pulley 34 connected to the driving pulley 32 through a connecting shaft 35, a driven pulley provided on the main shaft 5, and a second belt 36 connecting the driven pulley and the transmission pulley 34. By setting up two-stage belts, namely the first belt 33 and the second belt 36, the motor 31 can indirectly drive the main shaft 5 to rotate, and the transmission is stable. By using the belt setting, a slip effect can be generated between the belt and the pulley. Compared with gear transmission, belt transmission has better safety when the car collides.

[0036] The main shaft 5 is arranged in the middle of the casing 1, and the motor 31 and the driving pulley 32 are respectively arranged on both sides of the main shaft 5. In this way, the structural layout is more reasonable and compact, and the overall size of the casing 1 can be further reduced.

[0037] In addition, the main shaft 5 and the connecting shaft 35 are both arranged on the casing 1 through at least one bearing 8, and a bearing 8 is also provided between each knocking arm 41 and the corresponding eccentric wheel 61. An outer retaining ring 43 is provided on the side of the knocking arm 41, and an inner retaining ring 44 is provided on the inner side of the outer retaining ring 43. The bearing 8 can reduce the rotational friction of the corresponding components, and the outer retaining ring 43 can block and limit the bearing 8 at the knocking arm 41, and the setting of the inner retaining ring 44 can block and limit the eccentric wheel 61.

[0038] In addition, the housing 1 includes a base 13 and an upper cover 14. A buffer layer 15 is provided on the upper cover 14. The buffer layer 15 is provided corresponding to the side of the car seat 100 close to the back of the human body, which can play a certain buffering and protective role and reduce injuries during car collisions.

[0039] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rocker-type eccentric shaft-type percussion massage mechanism structure for a car seat, comprising a housing (1) and a massage module (2) arranged in the housing (1), the massage module (2) comprising a drive assembly (3) and at least one set of percussion arm groups (4) driven by the drive assembly (3), each set of percussion arm groups (4) comprising two alternately swinging percussion arms (41) and massage heads (42) arranged on the two percussion arms (41), the housing (1) being provided with an opening (11) corresponding to the massage head (42) and allowing the massage head (42) to be exposed, characterized in that: A main shaft (5) driven by a driving assembly (3) is arranged in a casing (1); each group of knocking arm groups (4) is arranged on the main shaft (5); an eccentric member (6) is arranged between each group of knocking arm groups (4) and the main shaft (5); the eccentric member (6) includes two eccentric wheels (61); the two eccentric wheels (61) are eccentrically arranged on the main shaft (5); two knocking arms (41) are respectively sleeved on the two eccentric wheels (61); the two knocking arms (41) of each group of knocking arm groups (4) are hinged to a swing rod (7); the other end of each swing rod (7) is hinged to the casing (1).

2. The swing arm eccentric shaft type percussion massage mechanism structure for a car seat according to claim 1, characterized in that: Two parallel hinge sections (12) are provided in the housing (1), and the other ends of the two swing rods (7) of each knocking arm group (4) are hinged on the hinge sections (12) respectively.

3. A rocker-ecentric-shaft percussion massage mechanism structure for a car seat according to claim 1 or 2, characterized in that: The driving assembly (3) comprises a motor (31), a driving pulley (32), a first belt (33) connecting the output shaft of the motor (31) and the driving pulley (32), a transmission pulley (34) connected to the driving pulley (32) via a connecting shaft (35), a driven pulley provided on a main shaft (5), and a second belt (36) connecting the driven pulley and the transmission pulley (34).

4. The swing arm eccentric shaft type percussion massage mechanism structure for a car seat according to claim 3, characterized in that: The main shaft (5) is arranged at the middle position of the casing (1), and the motor (31) and the driving pulley (32) are respectively arranged on both sides of the main shaft (5).

5. The swing arm eccentric shaft type percussion massage mechanism structure for a car seat according to claim 4, characterized in that: The main shaft (5) and the connecting shaft (35) are both arranged on the housing (1) via at least one bearing (8), and a bearing (8) is also arranged between each striking arm (41) and the corresponding eccentric wheel (61).

6. The swing arm eccentric shaft type percussion massage mechanism structure for a car seat according to claim 5, characterized in that: An outer retaining ring (43) is provided on the side of the knocking arm (41), and an inner retaining ring (44) is provided on the inner side of the outer retaining ring (43).

7. A rocker-ecentric-shaft percussion massage mechanism structure for a car seat according to claim 1 or 2, characterized in that: The housing (1) comprises a base (13) and an upper cover (14), and a buffer layer (15) is provided on the upper cover (14).

8. A rocker-ecentric-shaft percussion massage mechanism structure for a car seat according to claim 1 or 2, characterized in that: The housing (1) is arranged in a car seat (100), and a plurality of springs (200) are connected between the housing (1) and the car seat (100).

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