L-shaped crank arm knocking head massage mechanism for vehicle chair

Abstract

The utility model discloses an L-shaped crank arm knocking head massage mechanism for a vehicle chair, 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 knocking arm group driven by the driving assembly. Each knocking arm set comprises two swing arms which swing alternately and knocking heads arranged on the two swing arms, open holes which correspond to the knocking heads and can be used for exposing the knocking heads are formed in the machine shell, a main shaft which is driven by a driving assembly to rotate is arranged in the machine shell, eccentric parts are fixedly arranged at the positions, corresponding to the knocking arm sets, of the main shaft, and the eccentric parts are arranged on the machine shell. Each eccentric part comprises two eccentric wheels symmetrically and eccentrically arranged on the main shaft, the two eccentric wheels are sleeved with the two swing arms of each knocking arm set respectively, and each knocking head comprises an L-shaped crank arm and a massage head. The L-shaped crank arm comprises a connecting section connected with the massage head, a hinge section hinged to the swing arm and a transition section located between the hinge section and the connecting section, and the transition section is hinged to the machine shell.

Description

Technical Field

[0001] This utility model relates to the field of massage device technology, and more specifically, to an L-shaped curved arm tapping head massage mechanism for car seats. Background Technology

[0002] Prior art CN113208896B discloses a retractable car safety massage seat, including a seat frame, a backrest and a seat cushion. The back of the backrest of the seat frame has a receiving cavity, and a massage mechanism is arranged in the receiving cavity. The massage mechanism includes a frame, a tapping arm and a motor. A backrest panel is fixedly mounted on the frame, and a buffer layer is arranged between the backrest panel and the backrest of the seat frame. The tapping arm is hinged to the frame, and massage heads are respectively arranged on both sides of the tapping arm at the hinge. The backrest panel and the buffer layer are provided with through holes. The motor drives the tapping arm to swing, so that the massage heads on both sides of the tapping arm can alternately extend or retract from the corresponding through holes. When the massage head on one side of the tapping arm extends out of the through hole, the massage head is subjected to external resistance, which drives the tapping arm to swing, so that the massage heads on both sides of the tapping arm are placed inside the through holes, in a retracted state.

[0003] The massage mechanism requires a push rod to drive the eccentric wheel and the tapping arm, resulting in a large overall size and an uncompacted overall structure, necessitating further improvements to the existing technology. Utility Model Content

[0004] This utility model overcomes the shortcomings of the prior art. Its structure is reasonably designed. By mounting the swing arm on the eccentric wheel and hinged to the corresponding L-shaped curved arm, and by hinged to the transition section of the L-shaped curved arm on the housing, the internal space occupied by the housing is reduced and the structure is compact.

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

[0006] A massage mechanism for a car seat with an L-shaped curved arm and a massage module disposed within the housing. The massage module includes a drive assembly and at least one set of tapping arms driven by the drive assembly. Each set of tapping arms includes two alternately swinging arms and a tapping head disposed on the two swinging arms. The housing has openings corresponding to the tapping heads and allowing the tapping heads to be exposed. A main shaft driven to rotate by the drive assembly is disposed inside the housing. An eccentric component is fixedly disposed on the main shaft corresponding to the position of each set of tapping arms. Each eccentric component includes two symmetrically eccentrically disposed eccentric wheels on the main shaft. The two swinging arms of each set of tapping arms are respectively sleeved on the two eccentric wheels. The tapping head includes an L-shaped curved arm and a massage head. The L-shaped curved arm includes a connecting section connected to the massage head, a hinge section hinged to the swinging arm, and a transition section located between the hinge section and the connecting section. The transition section is hinged to the housing.

[0007] By adopting the above technical solution, the swing arm is sleeved on the eccentric wheel and hinged to the corresponding L-shaped curved arm. The transition section of the L-shaped curved arm is hinged to the housing. Compared with the prior art, this reduces the internal space occupied by the housing and makes the structure more compact. When the main shaft rotates, since the two eccentric wheels of each eccentric component are symmetrically and eccentrically fixed on the main shaft, the two swing arms of each set of striking arms can swing alternately, thereby allowing the corresponding striking head to extend out of the opening to massage the user. Specifically, the massage mechanism of this application is installed on a car seat, that is, the housing is set inside the car seat, and several springs connect the housing and the car seat, which can provide better cushioning for the housing. In this specific embodiment, there are two sets of striking arms, with four openings corresponding to each other. When a vehicle collision occurs, the striking head will retract into the opening due to the force of the user's back, thereby reducing secondary damage caused by the massage mechanism. The two eccentric wheels can be integrally set to form an eccentric component, and the eccentric component has a hole for the main shaft to pass through.

[0008] Preferably, the massage head is perpendicular to the end of the connecting section, the angle between the connecting section and the transition section is an obtuse angle, the transition section is set as a cylindrical transition structure, and there are two hinge sections, with a clearance space between the two hinge sections for connection with the swing arm.

[0009] By adopting the above technical solution, the L-shaped curved arm and the massage head are integrally molded. The massage head is perpendicular to the end of the connecting section, which facilitates mold design and increases the overall strength of the massage head and the L-shaped curved arm. Furthermore, the obtuse angle between the connecting section and the transition section allows the massage head to provide a better massage angle for the user's back during oscillation, improving the comfort of the tapping massage. The cylindrical structure of the transition section facilitates the placement of a hinge hole in the middle and increases the structural strength at the hinge hole, ensuring a stable hinge connection between the transition section and the housing. Moreover, by setting two hinge sections, a clearance space is created between them, providing room for the swing arm to rotate relative to the hinge section.

[0010] Preferably, the housing is provided with a hinge seat, a first hinge shaft is connected between the hinge seat and the transition section, and a second hinge shaft is connected between the hinge section and the swing arm.

[0011] By adopting the above technical solution, a stable hinge connection between the hinge and the hinge segment can be achieved by setting a hinge seat on the housing. The hinge connection between the two can be achieved by passing the first hinge shaft through the hinge seat and the transition segment, and the hinge connection between the two can also be achieved by passing the second hinge shaft through the hinge segment and the swing arm.

[0012] Preferably, the drive assembly includes a motor, the output shaft of which is provided with helical teeth, and the main shaft is provided with a gear component that meshes with the helical teeth.

[0013] By adopting the above technical solution, the gear component is fixed on the main shaft, the rotating motor drives the helical teeth to rotate, and the rotation of the gear component meshing with the helical teeth can drive the main shaft to rotate. The structure is simple and the transmission is stable.

[0014] Preferably, the main shaft is mounted on the housing via at least one bearing, and a bearing is also provided between each swing arm and the corresponding eccentric wheel. An outer retaining ring is provided on the side of the swing 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 component, the outer retaining ring can block and limit the bearing at the swing arm, and the inner retaining ring can block and limit the eccentric wheel.

[0016] Preferably, the housing includes a base and a top cover, with a hinge seat disposed on the top cover and a cushioning layer disposed on the top cover.

[0017] By adopting the above technical solution, the buffer layer is set on the side of the car seat closest to the back of the human body, which can play a certain role in buffering and protection, and reduce the injury during a car collision.

[0018] The beneficial effects of this utility model are:

[0019] The present invention has a reasonable structural design. By mounting the swing arm on the eccentric wheel and hinged to the corresponding L-shaped curved arm, and by hinged to the transition section of the L-shaped curved arm on the housing, the internal space occupied by the housing is reduced and the structure is compact. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model;

[0021] Figure 2 This is an exploded view of a specific embodiment of the present utility model;

[0022] Figure 3 This is an exploded view of a specific embodiment of the present invention, depicting the striking arm assembly;

[0023] Figure 4 This is a schematic diagram illustrating the structure of the housing mounted on a car seat in a specific embodiment of the present invention.

[0024] In the diagram: 100, chair; 200, spring; 1, housing; 11, opening; 12, hinge seat; 13, base; 14, top cover; 15, buffer layer; 2, massage module; 3, drive assembly; 31, motor; 32, helical gear; 33, gear component; 4, striking arm assembly; 41, swing arm; 42, outer retaining ring; 43, inner retaining ring; 5, striking head; 51, L-shaped curved arm; 52, massage head; 53, connecting section; 54, hinge section; 55, transition section; 56, clearance space; 57, first hinge shaft; 58, second hinge shaft; 6, main shaft; 61, eccentric component; 62, eccentric wheel; 7, bearing. Detailed Implementation

[0025] 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.

[0026] like Figure 1-4 As shown, an L-shaped curved arm tapping head massage mechanism for a car seat includes a housing 1 and a massage module 2 disposed in the housing 1. The massage module 2 includes a drive assembly 3 and at least one set of tapping arm groups 4 driven by the drive assembly 3. Each set of tapping arm groups 4 includes two alternately swinging arms 41 and tapping heads 5 disposed on the two swinging arms 41. The housing 1 is provided with openings 11 corresponding to the tapping heads 5 and allowing the tapping heads 5 to be exposed. A main shaft 6 driven to rotate by the drive assembly 3 is disposed inside the housing 1. The main shaft 6 has corresponding openings 11 for each set of tapping arms 41. Each of the striking arm assemblies 4 is fixedly equipped with an eccentric component 61. Each eccentric component 61 includes two eccentric wheels 62 symmetrically and eccentrically arranged on the main shaft 6. The two swing arms 41 of each striking arm assembly 4 are respectively sleeved on the two eccentric wheels 62. The striking head 5 includes an L-shaped curved arm 51 and a massage head 52. The L-shaped curved arm 51 includes a connecting section 53 connected to the massage head 52, a hinge section 54 hinged to the swing arm 41, and a transition section 55 located between the hinge section 54 and the connecting section 53. The transition section 55 is hinged to the housing 1.

[0027] By adopting the above technical solution, the swing arm 41 is sleeved on the eccentric wheel 62 and hinged to the corresponding L-shaped curved arm 51. The transition section 55 of the L-shaped curved arm 51 is hinged to the housing 1. Compared with the prior art, this reduces the internal space occupied by the housing 1 and makes the structure more compact. When the main shaft 6 rotates, since the two eccentric wheels 62 of each eccentric component 61 are symmetrically and eccentrically fixed on the main shaft 6, the two swing arms 41 of each set of striking arm groups 4 can be driven to swing alternately, thereby enabling the corresponding striking head 5 to extend out of the opening 11 to massage the user. Specifically, the massage mechanism of this application is installed on the car seat 100, that is, the housing 1 is set inside the car seat 100, and several springs 200 are connected between the housing 1 and the car seat 100. The springs 200 can play a better cushioning role for the housing 1. In this specific embodiment, the striking arm assembly 4 is provided in two sets, with four openings correspondingly provided. When a vehicle collision occurs, the striking head 5 will retract into the opening due to the force of the human back, thereby reducing secondary damage caused by the massage mechanism. The two eccentric wheels 62 can be integrally formed to constitute an eccentric component 61, which has a hole through which the main shaft 6 passes.

[0028] The massage head 52 is perpendicular to the end of the connecting section 53. The angle between the connecting section 53 and the transition section 55 is obtuse. The transition section 55 is a cylindrical transition structure. There are two hinge sections 54, and a clearance space 56 is formed between the two hinge sections 54 for connection with the swing arm 41. Specifically, the L-shaped curved arm 51 and the massage head 52 are integrally formed. The massage head 52 is perpendicular to the end of the connecting section 53, which facilitates mold design and increases the overall strength of the massage head 52 and the L-shaped curved arm 51. Combined with the obtuse angle between the connecting section 53 and the transition section 55, the massage head 52 has a better massage angle for the back of the human body when swinging, so as to improve the comfort of the tapping massage. The transition section 55 adopts a cylindrical structure, which facilitates the setting of a hinge hole in the middle of the transition section 55 and increases the structural strength at the hinge hole, ensuring the stable hinge connection between the transition section 55 and the housing 1. Furthermore, by setting two hinge segments 54, a clearance space 56 can be formed between the two hinge segments 54, which can provide room for the swing arm 41 to rotate relative to the hinge segment 54.

[0029] Furthermore, a hinge seat 12 is provided on the housing 1. A first hinge shaft 57 is connected between the hinge seat 12 and the transition section 55, and a second hinge shaft 58 is connected between the hinge section 54 and the swing arm 41. By providing a hinge seat 12 on the housing 1, a stable hinge connection can be achieved between the hinge seat 12 and the hinge section 54. That is, the hinge connection between the two can be achieved by passing the first hinge shaft 57 through the hinge seat 12 and the transition section 55, and the hinge connection between the two can also be achieved by passing the second hinge shaft 58 through the hinge section 54 and the swing arm 41.

[0030] The drive assembly 3 includes a motor 31, with a helical tooth 32 on the output shaft of the motor 31 and a gear 33 on the main shaft 6 that meshes with the helical tooth 32. The gear 33 is fixedly mounted on the main shaft 6. Rotating the motor 31 drives the helical tooth 32 to rotate, and the rotation of the gear 33 that meshes with the helical tooth 32 drives the main shaft 6 to rotate. The structure is simple and the transmission is stable.

[0031] Furthermore, the main shaft 6 is mounted on the housing 1 via at least one bearing 7. Each swing arm 41 and its corresponding eccentric wheel 62 are also provided with a bearing 7. An outer retaining ring 42 is provided on the side of the swing arm 41, and an inner retaining ring 43 is provided on the inner side of the outer retaining ring 42. The bearing 7 can reduce the rotational friction of the corresponding components, while the outer retaining ring 42 can block and limit the bearing 7 at the swing arm 41, and the inner retaining ring 43 can block and limit the eccentric wheel 62.

[0032] In addition, the housing 1 includes a base 13 and a top cover 14. The hinge seat 12 is disposed on the top cover 14, and a buffer layer 15 is disposed on the top cover 14. The buffer layer 15 is disposed on the side of the car seat 100 close to the back of the human body, which can play a certain role in buffering and protection, and reduce the injury during a car collision.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A car seat L-shaped curved arm tapping head massage mechanism, comprising a housing (1) and a massage module (2) disposed in the housing (1), the massage module (2) comprising a drive assembly (3) and at least one set of tapping arm groups (4) driven by the drive assembly (3), each set of tapping arm groups (4) comprising two alternately swinging arms (41) and tapping heads (5) disposed on the two swinging arms (41), the housing (1) being provided with corresponding and operable tapping heads (5). An opening (11) for exposing the striking head (5) is provided. A main shaft (6) driven to rotate by a drive assembly (3) is provided inside the housing (1). An eccentric component (61) is fixedly provided on the main shaft (6) corresponding to the position of each striking arm assembly (4). Each eccentric component (61) includes two symmetrically eccentrically arranged eccentric wheels (62) on the main shaft (6). The two swing arms (41) of each striking arm assembly (4) are respectively sleeved on the two eccentric wheels (62). The feature is that... The tapping head (5) includes an L-shaped curved arm (51) and a massage head (52). The L-shaped curved arm (51) includes a connecting section (53) connected to the massage head (52), a hinge section (54) hinged to the swing arm (41), and a transition section (55) located between the hinge section (54) and the connecting section (53). The transition section (55) is hinged to the housing (1).

2. The L-shaped curved arm tapping head massage mechanism for a car seat according to claim 1, characterized in that, The massage head (52) is perpendicular to the end of the connecting section (53). The angle between the connecting section (53) and the transition section (55) is an obtuse angle. The transition section (55) is set as a cylindrical transition structure. There are two hinge sections (54). An obstacle space (56) is formed between the two hinge sections (54) to connect with the swing arm (41).

3. A car seat L-shaped curved arm tapping head massage mechanism according to claim 1 or 2, characterized in that, A hinge seat (12) is provided on the housing (1), a first hinge shaft (57) is connected between the hinge seat (12) and the transition section (55), and a second hinge shaft (58) is connected between the hinge section (54) and the swing arm (41).

4. The L-shaped curved arm tapping head massage mechanism for a car seat according to claim 3, characterized in that, The drive assembly (3) includes a motor (31), the output shaft of the motor (31) is provided with helical teeth (32), and the main shaft (6) is provided with a gear (33) that meshes with the helical teeth (32).

5. A car seat L-shaped curved arm tapping head massage mechanism according to claim 1 or 2, characterized in that, The main shaft (6) is mounted on the housing (1) by at least one bearing (7). Each swing arm (41) and the corresponding eccentric wheel (62) are also provided with a bearing (7). An outer retaining ring (42) is provided on the side of the swing arm (41), and an inner retaining ring (43) is provided on the inner side of the outer retaining ring (42).

6. The L-shaped curved arm tapping head massage mechanism for a car seat according to claim 3, characterized in that, The housing (1) includes a base (13) and a top cover (14), with a hinge seat (12) disposed on the top cover (14).

7. The L-shaped curved arm tapping head massage mechanism for a car seat according to claim 6, characterized in that, A buffer layer (15) is provided on the top cover (14).

8. A car seat L-shaped curved arm tapping head massage mechanism according to claim 1 or 2, characterized in that, The housing (1) is installed inside the seat (100), and several springs (200) are connected between the housing (1) and the seat (100).

Images