Knocking massage device and automobile seat with same

Abstract

The utility model discloses a knocking massage device and an automobile seat with the same, the knocking massage device comprises a device base body used for being assembled in a seat backrest, the device base body is rotatably provided with two sets of swing arms, and the ends, away from the rotation center, of the two sets of swing arms are both provided with knocking parts; a first driving mechanism is arranged on the device base body and used for driving the swing arm to swing back and forth within a certain range, so that the knocking part at the far end forms knocking massage. The utility model has the beneficial effects that when a user needs the knocking parts to knock and massage, the first driving mechanism drives the two groups of swing arms to swing back and forth towards the front side of the backrest, namely the waist and back of the user, so that the knocking parts at the far ends of the two groups of swing arms can be driven to knock and massage the back of the user in a reciprocating manner.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile seat, specifically relates to a knocking massage device and automobile seat with the device. BACKGROUND

[0002] With the progress of science and technology, people's comfort requirements for automobile seats are also constantly improving. For passengers who drive or ride for a long time, it is easy to cause physical fatigue and muscle stiffness due to long-term maintenance of the same posture. In order to solve the fatigue problem derived from long-time driving and riding, more and more seats begin to be equipped with massage function.

[0003] In the prior art, the massager on the automobile seat is usually divided into two categories: air bag type massage and mechanical massage. Among them, the air bag type massage uses flexible airbags to act on the user's waist and back area, the massage intensity is low, the massage effect is poor, and it is difficult to fully and deeply relax the user's body. While the mechanical massage device directly presses the user's back with a rotatable massage device, although the massage intensity is greater than that of the air bag type massage, it also has the defects of large size and complex structure. And the traditional air bag type massage and mechanical massage mainly simulate the kneading massage method, which cannot meet the diversified massage needs of users. Therefore, there are more massage methods to be developed in the field of automobile seat massage. SUMMARY

[0004] Therefore, one of the purposes of the utility model is to provide a knocking massage device, which can massage the user's waist and back area in a knocking manner.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0006] A knocking massage device, the key is: including the device base body for assembling to the seat back, two groups of swing arms are rotatably installed on the device base body, and a knocking part is arranged at the end of the swing arm away from the rotation center of the two groups of swing arms; The first driving mechanism is arranged on the device base body, and the first driving mechanism is used for driving the swing arm to reciprocating swing in a certain range, so that the knocking part at the far end forms a knocking massage.

[0007] With the above structure, when the user needs the knocking part to knock, the first driving mechanism drives the two groups of swing arms to swing back and forth towards the front side of the backrest, that is, the user's waist and back, that is, the two groups of swing arms at the far end of the knocking part can reciprocatingly knock the user's back.

[0008] Preferably, the first driving mechanism comprises a first rotating shaft arranged on the device base, and a first driving assembly for driving the first rotating shaft to rotate, two transmission sleeves are rotatably sleeved on the first rotating shaft, the center lines of the two transmission sleeves are eccentric relative to the center line of the first rotating shaft, and the two transmission sleeves are arranged below the two groups of swing arms in one-to-one correspondence, and transmission rods are arranged between the transmission sleeves and the corresponding swing arms, one end of each transmission rod is hingedly connected to a transmission sleeve, and the other end is hingedly connected to the middle of a swing arm.

[0009] The first driving assembly drives the first rotating shaft to rotate, and the swing arms can be driven to reciprocatingly swing within a certain range under the eccentric transmission of the transmission sleeves.

[0010] Preferably, the eccentric directions of the two groups of transmission sleeves are opposite.

[0011] Preferably, a supporting member and a thrust mechanism for controlling the sliding of the supporting member are slidably arranged on the device base, the first rotating shaft is rotatably sleeved on the supporting member, and the supporting member can drive the swing arms to rotate around the rotating center of the swing arms through the transmission rods, so that the knocking part moves away from or approaches the device base.

[0012] Preferably, the thrust mechanism comprises a limiting block abutting against the supporting member and a second driving assembly for driving the limiting block to move along the sliding direction of the supporting member, an elastic element is arranged between the device base and the supporting member, and the elastic element applies a force to make the supporting member abut against the limiting block; when the knocking part is pressed by an external force, the supporting member can slide against the resistance of the elastic element, so that the knocking part moves towards the device base.

[0013] Preferably, the elastic element is a compression spring, the compression spring abuts between the end of the supporting member and the device base, the limiting block moves towards the compression spring, the compression spring can be forced through the supporting member when the limiting block moves away from the supporting member, the elastic potential energy of the compression spring can be released, and the thrust generated by the compression spring can make the supporting member move synchronously with the limiting block.

[0014] Preferably, a guide rod extending along the height direction of the device base is fixed on the device base, the elastic element, the supporting member and the limiting block are sequentially sleeved on the guide rod from bottom to top, and the supporting member and the limiting block can slide up and down relative to the guide rod.

[0015] Preferably, the device base comprises a mounting bottom plate for being arranged inside a seat backrest, and a supporting plate slidably connected to the mounting bottom plate, the supporting plate slides along the height direction of the mounting bottom plate, the first driving mechanism and the two groups of swing arms are arranged on the supporting plate, and a third driving mechanism is arranged on the mounting bottom plate and used for driving the supporting plate to slide along the height direction of the mounting bottom plate.

[0016] As preferred: the third driving mechanism includes a linear driving assembly arranged at one end of the mounting base in the width direction, and a guide assembly arranged at the other end, the linear driving assembly is used to drive the support plate lifting movement, and the guide assembly is used to guide the lifting movement of the support plate supporting the support plate.

[0017] The second purpose of the utility model is to provide an automobile seat, which comprises a backrest, and the key lies in that the knocking massage device is integrated and installed in the backrest A.

[0018] Compared with the prior art, the utility model has the advantages of:

[0019] 1. The knocking massage device is integrated and installed in the backrest A of the automobile seat, and when the user needs to knock the massage part, the first driving mechanism drives the two groups of swing arms to swing back and forth in front of the backrest, i.e. the user's waist and back, so that the two groups of swing arms at the far end of the knocking part can reciprocatingly knock the user's back, so that the meridians on both sides of the user's back spine can be relaxed through the knocking massage.

[0020] 2. The knocking massage device provided by the utility model adopts an eccentric transmission mode, can convert the rotary motion of the eccentric shaft section into the back-and-forth swinging of the knocking part, has the advantages of simple structure, small size, low manufacturing cost, high efficiency and high precision, and has high transmission advantages.

[0021] 3. The knocking massage device provided by the utility model has the massage functions of fixed-point knocking, walking knocking and walking massage, has good massage effect, can provide the user with the selection of various massage functions, and improves the user's experience.

[0022] 4. The knocking massage device provided by the utility model not only realizes that the knocking part is stored in the backrest in a non-working state, avoids the protrusion of the backrest to cause the user's waist to feel uncomfortable, ensures the normal riding comfort, but also can be expanded to protrude from the backrest when massage is needed, realizes the massage function. In addition, in the case of a collision accident, the knocking part can also realize the recoverable collapse, and the safety of the massage is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 Fig. 2 is a schematic view of the knocking massage device integrated in the backrest A;

[0024] Figure 2 Fig. 3 is a reference view of the use state of the knocking massage device integrated in the backrest A;

[0025] Figure 3 Fig. 4 is a schematic view of the knocking massage device massaging the user's back F.

[0026] Figure 4 It is a structural diagram of a percussion massage device;

[0027] Figure 5 It is a structural diagram of the percussion massage device in a non-working state;

[0028] Figure 6 This is a schematic diagram of the structure of the percussion massage device in the walking and percussion state;

[0029] Figure 7 A schematic diagram showing the positional relationship between the support component B4 and the thrust mechanism D;

[0030] Figure 8 It is a partial enlarged view of the percussion massage device;

[0031] Figure 9 is a cross-sectional view of the percussion massage device in the retracted state of the percussion portion B3;

[0032] Figure 10 is a cross-sectional view of the percussion massage device with the percussion portion B3 in an expanded state;

[0033] Figure 11 is a cross-sectional view of the first rotation axis C1;

[0034] Figure 12 It is a structural diagram of the support component B4;

[0035] Figure 13 It is a structural diagram of the limit block D2;

[0036] Figure 14 is another structural schematic diagram of the percussion massage device;

[0037] Figure 15 It is a structural schematic diagram of the support plate 2;

[0038] Figure 16 A partial cross-sectional view of the guide assembly E2;

[0039] Figure 17 Schematic diagram of the structure of the percussion massage device with the baffle G installed. DETAILED DESCRIPTION

[0040] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0041] like Figure 4 As shown, a percussion massage device includes a device base B. In this embodiment, the device base B includes a mounting base 1 and a support plate 2 slidably mounted on the mounting base 1. The mounting base 1 is used to be mounted inside the seat back, and the support plate 2 can slide along the height direction of the mounting base 1. Figure 5It can be seen that the support plate 2 is provided with a second rotating shaft B1 arranged in the width direction, two groups of swing arms B2 are rotatably installed on the second rotating shaft B1, the two groups of swing arms B2 are symmetrically arranged, and the ends away from the second rotating shaft B1 of the two groups of swing arms B2 are provided with knocking parts B3, and the knocking parts B3 are spherical structures. The support plate 2 is also provided with a first driving mechanism C, which is used to drive the swing arms B2 to reciprocatingly swing within a certain range, so that the distal end knocking part B3 forms a knocking massage.

[0042] Reference Figure 3 and 4 When the user needs to knock the knocking part B3 for knocking massage, the first driving mechanism C drives the two groups of swing arms B2 to swing back and forth towards the front side of the backrest A, that is, the user's waist and back H, that is, the distal end knocking part B3 of the two groups of swing arms B2 can drive the user's back to reciprocatingly knock and massage, so that the meridians on both sides of the user's back spine can be relaxed.

[0043] Further, please refer to Figure 4 and 8 The first driving mechanism C includes a first rotating shaft C1 arranged on the support plate 2, and a first driving assembly C2 for driving the first rotating shaft C1 to rotate, and the first rotating shaft C1 is located below the two groups of swing arms B2. Two transmission sleeves C3 are rotatably sleeved on the first rotating shaft C1, and the two transmission sleeves C3 are arranged below the two groups of swing arms B2 one by one. In this embodiment, the center lines of the two transmission sleeves C3 are eccentrically arranged relative to the center line of the first rotating shaft C1. A transmission rod C4 is arranged between the transmission sleeve C3 and the corresponding swing arm B2, one end of the transmission rod C4 is hinged to the transmission sleeve C3, and the other end is hinged to the middle of the swing arm B2. The first driving assembly C2 drives the first rotating shaft C1 to rotate, and under the eccentric transmission of the transmission sleeve C3, the transmission rod C4 can drive the corresponding swing arm B2 to reciprocatingly swing within a certain range, so as to realize the reciprocating knocking massage of the knocking part B3 on the user's back. In this embodiment, the first driving assembly C2 drives the first rotating shaft C1 to rotate in the form of motor direct drive.

[0044] Again refer to Figure 8 and 11, the first rotating shaft C1 is provided with an eccentric shaft section C11 at the position corresponding to the transmission sleeve C3, and the transmission sleeve C3 is sleeved on the corresponding eccentric shaft section C11. When the eccentric shaft section C11 rotates with the first rotating shaft C1, the rotation of the eccentric shaft section C11 can be converted into the forward and backward swinging of the knocking part B3 through the cooperation of the transmission sleeve C3, the transmission rod C4 and the swinging arm B2, so that the transmission rod C4 can drive the corresponding swinging arm B2 to swing back and forth in a small range. In addition to the above-mentioned embodiment, the position of the first rotating shaft C1 corresponding to the transmission sleeve C3 can also be a cam provided with other protruding structures, and the transmission sleeve C3 is sleeved on the cam. When the cam rotates, it can also drive the swinging arm B2 to swing back and forth.

[0045] In order to improve the flexibility of the swinging arm B2 transmission, the transmission rod C4 and the swinging arm B2 are connected by a spherical hinge.

[0046] By Figure 11 It can be seen that the eccentric directions of the two groups of eccentric shaft sections C11 relative to the center line of the first rotating shaft C1 are opposite. In the initial state, the center line m of the left eccentric shaft section C11 is eccentric downward relative to the center line n of the first rotating shaft C1, and the center line k of the right eccentric shaft section C11 is eccentric upward relative to the center line n of the first rotating shaft C1. In this way, when the first rotating shaft C1 rotates, the two groups of eccentric shaft sections C11 can drive the two groups of swinging arms B2 to swing in different directions, so that the two knocking parts B3 form a reciprocating and alternating knocking massage on the user's back, improving the experience of the massage.

[0047] As Figure 6 shown, the mounting bottom plate 1 is provided with a third driving mechanism E, and the third driving mechanism E can drive the support plate 2 to move up and down along the height direction of the mounting bottom plate 1. When the knocking part B3 knocks and massages the user's waist and back, the third driving mechanism E drives the support plate 2 to move up and down, which can drive the two knocking parts B3 to move up and down along the meridians on both sides of the user's spine, thereby simulating the massage mode of walking and knocking, enriching the massage function and improving the massage effect.

[0048] Further, as Figure 5 shown, the third driving mechanism E includes a linear driving assembly E1 arranged at one end of the mounting bottom plate 1 in the width direction and a guide assembly E2 arranged at the other end. The linear driving assembly E1 can drive the support plate 2 to move up and down, and the guide assembly E2 can guide the up and down movement of the support plate 2, so that the up and down movement of the support plate 2 on the mounting bottom plate 1 is smoother. The advantage of this design is that by arranging the linear driving assembly E1 and the guide assembly E2 at both ends, a mounting space can be reserved in the middle of the support plate 2, so as to facilitate the installation of the massage component, which has the advantages of reasonable layout and compactness, and helps the product to be integrated in the seat back in a thinner and more compact manner.

[0049] Please refer to Figure 5 , the linear drive assembly E1 includes a first screw rod E11 extending along the height direction of the mounting bottom plate 1, a nut sleeve E12 sleeved on the first screw rod E11, and a first motor E13 driving the nut sleeve E12 to rotate, wherein the first screw rod E11 is located at the left end of the mounting bottom plate 1. The first motor E13 is fixedly installed on the support plate 2, and the first motor E13 drives the nut sleeve E12 to rotate, which can drive the nut sleeve E12 to move axially and spirally along the first screw rod E11, so that the first motor E13 and the support plate 2 can move up and down as a whole. Since the first screw rod E11 is arranged offset, the support plate 2 is prone to have a shaking gap, therefore, in cooperation with the guide assembly E2 at the right end, the shaking gap of the support plate 2 can be absorbed, and the stability of the up and down movement of the support plate 2 is ensured. At the same time, by fixing the first screw rod E11, more stable support can be provided for the support plate 2. Figure 14 It can be seen that the first screw rod E11 is fixedly supported on the mounting bottom plate 1 through the support seat E3 at both ends. The first motor E13 is fixedly installed on the support plate 2, and the first motor E13 drives the nut sleeve E12 to rotate, which can drive the nut sleeve E12 to move axially and spirally along the first screw rod E11, so that the first motor E13 and the support plate 2 can move up and down as a whole. Since the first screw rod E11 is arranged offset, the support plate 2 is prone to have a shaking gap, therefore, in cooperation with the guide assembly E2 at the right end, the shaking gap of the support plate 2 can be absorbed, and the stability of the up and down movement of the support plate 2 is ensured. At the same time, by fixing the first screw rod E11, more stable support can be provided for the support plate 2.

[0050] Please refer to Figure 5 , the guide assembly E2 includes a guide rail E21 fixedly arranged at the right end of the mounting bottom plate 1, the guide rail E21 extending along the height direction of the mounting bottom plate 1, and the support plate 2 being provided with a second roller E22 at the position corresponding to the guide rail E21 at the bottom, the second roller E22 being in sliding contact with the bottom of the guide rail E21. In this way, the smoothness of the sliding of the support plate 2 is improved, and the cost is low.

[0051] As shown in Figure 15 , the bottom of the support plate 2 is rotatably provided with a plurality of third rollers 21 in sliding contact with the mounting bottom plate 1, which can further improve the smoothness of the sliding of the support plate 2.

[0052] Please refer to Figure 4 and 7 , the support plate 2 is slidably provided with a support component B4 and a thrust mechanism D controlling the sliding of the support component B4, and the first rotating shaft C1 is rotatably sleeved on the support component B4. The support component B4 slides to drive the first rotating shaft C1 to move, so that the knocking part B3 can be driven to rotate around the rotating center of the swing arm B2 through the transmission rod C4, so as to move away from or close to the device base B. Based on this, when the massage function is not used, the knocking part B3 and the swing arm B2 are accommodated in the backrest, that is, the knocking part B3 is closer to the position of the support plate 2 (refer to Figure 5 ), avoiding the protrusion of the knocking part B3 from the backrest to cause the user's waist to feel uncomfortable, and ensuring the comfort of normal riding. When the user needs to use the knocking part B3 for knocking massage, the support component B4 slides to drive the swing arm B2 to rotate outward, so that the knocking part B3 at the far end of the swing arm B2 can be pushed out to the front side of the backrest F (refer to Figure 3), and acts on the occupant's waist and back. Then, the first drive assembly C2 drives the first rotating shaft C1 to rotate, i.e. to make the distal end of the knocking part B3 form a reciprocating swing and knocking massage on the user's back. After the massage is finished, the thrust mechanism D drives the support part B4 to slide, so as to make the swing arm B2 rotate towards the support plate 2 direction, so that the knocking part B3 can be retracted towards the support plate 2 direction. In addition, by controlling the angle of the swing arm B2 rotating outward, the knocking massage depth of the knocking part B3 can also be adjusted, so that users of various body types can also receive effective massage.

[0053] Further, as shown in Figure 9 and 10 , the thrust mechanism D includes a limiting block D2 abutting against the support part B4, and a second drive assembly D3 driving the limiting block D2 to move along the sliding direction of the support part B4. The support plate 2 and the support part B4 are provided with an elastic element D1, which applies a force to make the support part B4 abut against the limiting block D2. When the knocking part B3 is pressed by external force, the support part B4 can slide against the resistance of the elastic element D1, so as to make the knocking part B3 move towards the support plate 2. In this way, when the user needs to use the knocking part B3 for massage, the second drive assembly D3 drives the limiting block D2 to move away from the support part B4. During this process, since the elastic element D1 applies a force to make the support part B4 continuously abut against the limiting block D2, the support part B4 can move synchronously with the limiting block D2, driving the first rotating shaft C1 to move synchronously, so as to drive the swing arm B2 to rotate outward relative to the second rotating shaft B1 under the linkage action of the transmission rod C4, so that the distal end of the swing arm B2, i.e. the knocking part B3, can be ejected to the front side of the backrest A. After the massage is finished, the second drive assembly D3 drives the limiting block D2 to move towards the support part B4. At this time, the limiting block D2 pushes the support part B4 to slide against the resistance of the elastic element D1, so as to drive the swing arm B2 to rotate inward under the linkage action of the transmission rod C4, so that the knocking part B3 can be retracted towards the support plate 2.

[0054] Under such structural design, the knocking part B3 also has a passive collapse function in the working state. The specific process is as follows: in the working state of the knocking part B3, when the vehicle is in collision or other sudden conditions, the knocking part B3 is pressed by external force. The support part B4 can drive the first rotating shaft C1 to slide against the resistance of the elastic element D1, so as to drive the knocking part B3 to retract rapidly towards the support plate 2 under the linkage action of the transmission rod C4, effectively avoiding the knocking part B3 from causing harm to the human body, and improving the safety of the massage. When the external force disappears, the elastic element D1 resets to push the support part B4 to slide, and then drive the swing arm B2 and the knocking part B3 to automatically return to the position in the working state. In this way, the knocking part B3 can be protected from damage, the cost is saved, and the trouble of replacing parts is avoided, which has the advantage of good practicability.

[0055] The elastic element D1 can be a compression spring, a tension spring, a torsion spring, a leaf spring, a spring plate, etc. In the present embodiment, the elastic element D1 is a compression spring. Referring to Figure 9 and 10 , the compression spring is arranged between the support component B4 and the lower end of the support plate 2, the limiting block D2 is moved downward along the height direction of the support plate 2, i.e. is moved towards the compression spring, and can push the support component B4 to compress the compression spring downward to force the compression spring to store energy, the support component B4 is moved downward, and can drive the swing arm B2 to rotate towards the support plate 2 through the transmission rod C4. When the limiting block D2 is moved away from the support component B4, i.e. is moved upward, the elastic potential energy of the compression spring can be released, and the thrust generated by the compression spring can move the support component B4 synchronously with the limiting block D2, so as to drive the swing arm B2 to rotate outward through the transmission rod C4. In this state, when the knocking part B3 is pressed by external force, the support component B4 can press the compression spring downward, and then drive the swing arm B2 to quickly retract towards the support plate 2 through the transmission rod C4; when the external force disappears, the compression spring can release energy to push the support component B4 to move upward until the support component B4 abuts against the limiting block D2, at this time, the swing arm B2 returns to the working position, and the knocking part B3 is not damaged by external force.

[0056] As shown in Figure 7 , the support plate 2 is fixed with a guide rod D4 extending along the height direction thereof, the elastic element D1, the support component B4 and the limiting block D2 are sequentially sleeved on the guide rod D4 from bottom to top, and the support component B4 and the limiting block D2 can slide up and down relative to the guide rod D4. In this way, the reliability of installation and movement of the elastic element D1, the support component B4 and the limiting block D2 is ensured.

[0057] As shown in Figure 7 , the second driving assembly D3 includes a second motor D31 fixed on the support plate 2 and a second lead screw D32 driven to rotate by the second motor D31, the second lead screw D32 extends along the height direction of the support plate 2, and the limiting block D2 is threadedly sleeved on the second lead screw D32, the second motor D31 drives the second lead screw D32 to rotate, i.e. drives the limiting block D2 to move along the second lead screw D32. In order to ensure the compactness of the overall structure and the uniformity of the force acting on the support component B4, the number of guide rods D4 is two, the two guide rods D4 are symmetrically arranged along the width direction of the support plate 2, and the second lead screw D32 is located between the two guide rods D4. The elastic element D1 is sleeved on each of the two guide rods D4, and the two ends of the limiting block D2 and the two ends of the support component B4 are respectively connected with the two guide rods D4 in sliding mode. The second motor D31 drives the limiting block D2 to move downward, which can drive the support component B4 to simultaneously press the two elastic elements D1, and then can drive the two swing arms B2 to retract inward, thereby ensuring the synchronism of the movement of the two swing arms B2.

[0058] As shown in Figure 7It can be seen that the lower end of the support plate 2 is fixedly provided with a mounting seat D5, the ends of the two guide rods D4 are fixedly connected to the two ends of the mounting seat D5 in the width direction, and the lower end of the second lead screw D32 is rotatably supported in the middle of the mounting seat D5. On the same guide rod D4, one end of the elastic element D1 is supported on the mounting seat D5, and the other end abuts against the support member B4. In this way, the reliability of the installation is ensured.

[0059] In combination Figure 7 and Figure 13 As shown in FIGS. 1 and 2, the two ends of the limiting block D2 are provided with first connecting holes D21, and the two first connecting holes D21 are respectively slidably sleeved on the two groups of guide rods D4. The middle of the limiting block D2 is provided with a second connecting hole D22, and the second connecting hole D22 is threadedly sleeved on the second lead screw D32.

[0060] Please refer to Figure 7 and 12 The two ends of the support member B4 are provided with sleeving portions B41 which are respectively slidably sleeved on the two groups of guide rods D4, and one end of the compression spring abuts against the corresponding sleeving portion B41. The support member B4 is further provided with two groups of buckling portions B42, in combination Figure 8 As shown in FIGS. 1 and 2, the first rotating shaft C1 penetrates through the two buckling portions B42, and the middle of the first rotating shaft C1 is rotatably supported on the two buckling portions B42. When the first rotating shaft C1 is installed on the buckling portion B42, the first rotating shaft C1 is located above the two guide rods D4.

[0061] Further, please refer to Figure 8 and 12 The middle of the support member B4 is provided with a downwardly recessed avoiding groove B43, and the second lead screw D32 is located above the avoiding groove B43, which further improves the compactness of the structure. The lower side of the support member B4 is provided with a first roller B44 which is in sliding contact with the support plate 2. The first roller B44 increases the smoothness of the sliding of the support member B4 on the support plate 2, and on the other hand, in the event of a collision accident, the support member B4 can also smoothly extrude the compression spring downward to ensure that the swing arm B2 can be quickly retracted.

[0062] The knocking massage device provided by the embodiment can not only realize the function of knocking massage, but also simulate walking massage, specifically as follows: the support member B4 is slidably driven to rotate the swing arm B2 outward, so that the knocking portion B3 at the distal end of the swing arm B2 can be pushed out to the front side of the backrest F and act on the waist and back of the occupant, and the third driving mechanism E drives the support plate 2 to move up and down along the mounting bottom plate 1, that is, the knocking portion B3 can move up and down along the meridians on both sides of the user's back spine, thereby simulating the massage function of walking massage.

[0063] As Figure 1As shown, the embodiment also provides a car seat, which comprises a backrest A, and the knocking massage device described above is integrated and installed inside the backrest A. When the knocking massage device works, it can perform fixed-point knocking, walking knocking, walking massage and other massages on the user. When installed, the front side of the backrest A is fixedly provided with an assembly plate F opposite the position of the installation bottom plate 1. The assembly plate F is used for protecting and shielding the knocking massage device. A second opening F1 is formed in the assembly plate F, and the second opening F1 is used for avoiding walking knocking massage of the knocking part B3 (refer to Figure 2 )。 As shown in Figure 14 and 17 , the support plate 2 is provided with a forwardly protruding support 22, and the support 22 is fixedly connected with a baffle G. The baffle G can cover and shield the support plate 2. A first opening G1 is formed in the middle of the baffle G, and the first opening G1 is used for avoiding the outward ejection and inward retraction of the two knocking parts B3. Further, the baffle G is provided with fourth rollers G2, and each fourth roller G2 is in sliding contact with the surface of the assembly plate F.

[0064] Finally, it should be noted that the above description is only a preferred embodiment of the present application, and those skilled in the art can make various similar expressions under the inspiration of the present application without violating the purpose and claims of the present application. Such changes fall within the scope of the present application.

Claims

1. A tapping massage device, characterized by: The device base (B) is assembled into the seat back, two sets of swing arms (B2) are rotatably installed on the device base (B), and a knocking part (B3) is arranged at the end of the swing arms (B2) away from the rotation center; A first driving mechanism (C) is arranged on the device base (B) and used for driving the swing arms (B2) to reciprocating swing within a certain range, so that the knocking part (B3) at the far end forms a knocking massage; The first driving mechanism (C) comprises a first rotating shaft (C1) arranged on the device base (B) and a first driving assembly (C2) for driving the first rotating shaft (C1) to rotate, two transmission sleeves (C3) are rotatably sleeved on the first rotating shaft (C1), and the two transmission sleeves (C3) are arranged below the two sets of swing arms (B2) in one-to-one correspondence, the first driving assembly (C2) drives the first rotating shaft (C1) to rotate, and the swing arms (B2) can be driven to reciprocating swing within a certain range under the eccentric transmission of the transmission sleeves (C3).

2. The percussion massage device according to claim 1, characterized in that: The center lines of the two transmission sleeves (C3) are eccentrically arranged relative to the center line of the first rotating shaft (C1), transmission rods (C4) are arranged between the transmission sleeves (C3) and the corresponding swing arms (B2), one end of the transmission rod (C4) is hingedly connected to the transmission sleeve (C3), and the other end is hingedly connected to the middle part of the swing arm (B2).

3. The percussion massage device according to claim 2, characterized in that: The eccentric directions of the two sets of transmission sleeves (C3) are opposite.

4. The percussion massage device of claim 2, wherein: A supporting part (B4) and a thrust mechanism (D) for controlling the sliding of the supporting part (B4) are slidably assembled on the device base (B), the first rotating shaft (C1) is rotatably sleeved on the supporting part (B4), the supporting part (B4) slides, the swing arms (B2) can be driven to rotate around the rotation center through the transmission rods (C4), and the knocking part (B3) moves away from or approaches the device base (B).

5. The percussion massage device according to claim 4, characterized in that: The thrust mechanism (D) comprises a limiting block (D2) abutting against the supporting part (B4) and a second driving assembly (D3) for driving the limiting block (D2) to move along the sliding direction of the supporting part (B4), an elastic element (D1) is arranged between the device base (B) and the supporting part (B4), the elastic element (D1) exerts a force for abutting the supporting part (B4) against the limiting block (D2), and when the knocking part (B3) is pressed by an external force, the supporting part (B4) can slide against the resistance of the elastic element (D1), so that the knocking part (B3) moves towards the device base (B).

6. The percussion massage device of claim 5, wherein: The elastic element (D1) is a compression spring, the compression spring abuts between the end of the supporting part (B4) and the device base (B), the limiting block (D2) moves towards the compression spring, the compression spring can be forced to store energy through the supporting part (B4), the limiting block (D2) moves away from the supporting part (B4), the elastic potential energy of the compression spring can be released, and the thrust generated by the compression spring can drive the supporting part (B4) to move synchronously with the limiting block (D2).

7. The percussion massage device according to claim 6, characterized in that: The device base (B) is fixed with a guide rod (D4) extending along the height direction thereof, the elastic element (D1), the support part (B4) and the limiting block (D2) are sequentially sleeved on the guide rod (D4) from bottom to top, and the support part (B4) and the limiting block (D2) can slide up and down relative to the guide rod (D4).

8. The percussion massage device of claim 1, wherein: The device base (B) comprises a mounting bottom plate (1) for being assembled inside a seat backrest and a support plate (2) slidably connected to the mounting bottom plate (1), the support plate (2) slides along the height direction of the mounting bottom plate (1), the first driving mechanism (C) and the two sets of swing arms (B2) are arranged on the support plate (2), and the mounting bottom plate (1) is provided with a third driving mechanism (E) for driving the support plate (2) to slide along the height direction of the mounting bottom plate (1).

9. The percussion massage device of claim 8, wherein: The third driving mechanism (E) comprises a linear driving assembly (E1) arranged at one end of the mounting bottom plate (1) in the width direction and a guide assembly (E2) arranged at the other end, the linear driving assembly (E1) is used for driving the support plate (2) to perform lifting movement, and the guide assembly (E2) is used for guiding the lifting movement of the support plate (2).

10. A car seat comprising a backrest (A), characterized in that: The backrest (A) is internally integrated with the knocking massage device according to any one of claims 1 to 9.

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