Kneading massage device and automobile seat with same

Abstract

The utility model discloses a kneading massage device and an automobile seat with the same. The kneading massage device comprises a massager base body, a rotating shaft and a first driving mechanism for driving the rotating shaft to rotate are rotatably arranged on the massager base body, a kneading rod is connected to the rotating shaft, a massage head is installed at the end, away from the rotating shaft, of the kneading rod, and an annular groove is formed in the rotating shaft; one end of each kneading rod rotationally sleeves the annular groove, the side walls of the two sides of the annular groove are obliquely arranged relative to the center line of the rotating shaft, and the two sides, close to one end of the rotating shaft, of each kneading rod are in sliding contact with the side walls of the two sides of the annular groove respectively; when the massage head is subjected to resistance of the seat cover or the back of a user, the first driving mechanism drives the rotating shaft to rotate, and the kneading rods can be forced to axially swing in a reciprocating manner along the rotating shaft under the transmission action of the inclined side wall of the annular groove, so that the massage head at the far end kneads and massages the back of the user; and two groups of kneading rods are connected to the rotating shaft. The waist and back massage device has the advantage of being capable of simulating kneading manipulation to massage the waist and back of a user.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a kneading and massaging device and an automobile seat with the device. Background Art

[0002] Car seats are an essential component of any vehicle. As people's quality of life improves, they increasingly prioritize the quality, performance, and user experience of their car seats. This is especially true for passengers who spend extended periods driving or sitting in the same position, which can lead to fatigue and muscle stiffness. To enhance car seat comfort, more and more car seats are being equipped with massage functions to alleviate the fatigue associated with extended driving.

[0003] However, currently, massage devices for the lower back area on the market are generally divided into air bag massage and mechanical massage. Air bag massage uses flexible airbags to massage the user's lower back area, resulting in low massage force and poor results. Mechanical massage devices, on the other hand, mostly use a rotating massage element that directly presses against the user's back to massage. While this provides greater massage force than air bag massage, they are also more expensive and bulky. Utility Model Content

[0004] In view of this, one of the purposes of the present invention is to provide a kneading massage device that can simulate kneading techniques to massage the user's waist and back, and has the advantages of good massage effect and simple and compact structure.

[0005] To achieve the above purpose, the technical solution of this utility model is as follows:

[0006] A kneading massage device comprises a massager base, a rotating shaft and a first driving mechanism for driving the rotating shaft to rotate are rotatably provided on the massager base, a kneading rod is connected to the rotating shaft, a massage head is mounted on the end of the kneading rod away from the rotating shaft, and an annular groove is provided on the rotating shaft;

[0007] One end of the kneading rod is rotatably mounted on the annular groove, and both side walls of the annular groove are inclined relative to the center line of the rotating shaft. Both sides of the kneading rod close to one end of the rotating shaft are in sliding contact with the side walls of the annular groove respectively.

[0008] When the massage head encounters resistance from the seat cover or the user's back, the first drive mechanism drives the rotating shaft to rotate. Under the transmission action of the inclined side wall of the annular groove, the kneading rod is forced to swing back and forth along the axis of the rotating shaft, so that the massage head at the distal end performs kneading and massaging on the user's back.

[0009] Two groups of kneading rods are connected to the rotating shaft.

[0010] With the above structure, the first drive mechanism drives the rotating shaft to rotate and transmits the power to the kneading rod. Since the massage head at the far end of the kneading rod will be subject to resistance from the seat cover or the user's back, and an inclined cam transmission is formed between the inclined side wall of the annular groove and the side wall of the kneading rod, the rotation of the rotating shaft can force the kneading rod to swing back and forth along the axis of the rotating shaft, thereby causing the massage head at the far end to perform a reciprocating swinging kneading massage on the user's back.

[0011] Preferably, the rotating shaft includes a central shaft and a sleeve fixedly mounted on the central shaft, the annular groove is provided on the sleeve, and one end of the kneading rod has an annular sleeve hole adapted to the annular groove, and the annular sleeve hole is rotatably mounted on the annular groove.

[0012] Preferably, a second driving mechanism is provided on the massager base, which is used to drive the kneading rod to rotate relative to the annular groove, so that the massage head can move away from or towards the massager base.

[0013] Preferably, the second driving mechanism includes a slider slidably mounted on the massager base, and a thrust assembly for controlling the sliding of the slider, the kneading rod and the slider are connected by a retaining rod, the two ends of the retaining rod are hinged to the kneading rod and the slider respectively, wherein the retaining rod and the kneading rod are connected by a ball joint, and the sliding of the slider can drive the kneading rod to rotate relative to the annular groove via the retaining rod.

[0014] Preferably, the thrust assembly includes a limit block abutting against the slider, and a driving component driving the limit block to move along the sliding direction of the slider; an elastic component is provided between the massager base and the slider, and the elastic component applies a force to make the slider abut against the limit block; when the massage head is pressed by external force, the slider can overcome the resistance of the elastic component and slide to make the massage head move toward the massager base.

[0015] Preferably, the elastic component is a compression spring, which abuts between the slider and the end of the massager base. When the limit block moves toward the compression spring, it can force the compression spring to store force through the slider. When the limit block moves away from the slider, it can release the elastic potential energy of the compression spring. The thrust generated by the compression spring can make the slider move synchronously with the limit block.

[0016] Preferably, a guide rod extending in the height direction is fixed to the massager base, the elastic component, the slider and the limit block are sequentially mounted on the guide rod in the height direction, and the slider and the limit block can slide up and down relative to the guide rod.

[0017] Preferably, the massager base includes a mounting base for assembly inside a seat back, and a slide slidably connected to the mounting base, the slide slides along the height direction of the mounting base, the rotating shaft and the first drive mechanism are arranged on the slide, and a third drive mechanism is provided on the mounting base, the third drive mechanism is used to drive the slide to slide along the height direction of the mounting base.

[0018] Preferably, the third driving mechanism includes a linear driving unit arranged at one end in the width direction of the mounting base plate, and a guide assembly arranged at the other end, wherein the linear driving unit is used to drive the lifting movement of the slide, and the guide assembly is used to guide and support the lifting movement of the slide.

[0019] The second purpose of the present utility model is to provide a car seat, including a backrest, the key of which is that the kneading and massaging device is integrated and installed inside the backrest.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The kneading massage device provided by the present invention has a first drive mechanism that drives the rotating shaft to rotate and transmits the power to the kneading rod. Since the massage head at the far end of the kneading rod is subject to resistance from the seat cover or the user's back, and an inclined cam transmission is formed between the inclined side wall of the annular groove and the side wall of the kneading rod, the rotation of the rotating shaft can force the kneading rod to swing back and forth along the axis of the rotating shaft, that is, the kneading rod can swing left and right, thereby causing the massage head at the far end to perform a reciprocating swinging kneading massage on the user's back, which has the advantages of good massage effect and simple structure.

[0022] 2. The kneading massage device provided by this utility model not only allows the massage head to be stored inside the backrest when not in use, preventing it from protruding from the backrest and causing discomfort to the user's waist, thus ensuring normal riding comfort, but also allows the massage head to be deployed to a position protruding from the backrest when massage is required, thus achieving a massage function. In addition, the massage head can be retracted in a recoverable manner in the event of a collision, thereby improving massage safety.

[0023] 3. By arranging the linear drive unit and guide assembly at both ends, installation space can be reserved in the middle of the slide to facilitate the installation of massage components. This has the advantages of a reasonable and compact layout, which helps the product to be integrated into the seat back in a thinner and more compact manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a front view of the kneading massage device;

[0025] Figure 2 It is a structural diagram of the rotating shaft B1;

[0026] Figure 3 Schematic diagram of the exploded view of the sleeve B13 and the kneading rod B2;

[0027] Figure 4 It is a partial cross-sectional view of the rotation axis B1;

[0028] Figure 5 It is a structural diagram of the kneading massage device in a non-working state;

[0029] Figure 6 It is a structural diagram of the kneading massage device in a fixed-point kneading state;

[0030] Figure 7 This is a structural diagram of the kneading massage device in the walking kneading state;

[0031] Figure 8 This is a structural diagram of the kneading massage device when the massage head B3 is retracted;

[0032] Figure 9 This is a schematic diagram of the structure of the kneading massage device when the massage head B3 is unfolded;

[0033] Figure 10 is a cross-sectional view of the kneading massage device with the massage head B3 retracted;

[0034] Figure 11 is a cross-sectional view of the kneading massage device with the massage head B3 deployed;

[0035] Figure 12 is another structural schematic diagram of the kneading massage device;

[0036] Figure 13 A schematic diagram showing the positional relationship between the slider D4 and the thrust assembly;

[0037] Figure 14 A partial enlarged view showing the positional relationship between the slider D4 and the second screw rod D32;

[0038] Figure 15 It is a structural diagram of the slider D4;

[0039] Figure 16 It is a structural diagram of the limit block D2;

[0040] Figure 17 A schematic diagram showing the structure of the linear drive unit E1 from a side perspective;

[0041] Figure 18 It is a structural diagram of the slide 2;

[0042] Figure 19 A schematic diagram of a kneading massage device massaging a user's back F;

[0043] Figure 20 A schematic diagram of the structure of the kneading and massaging device with the upper baffle G installed;

[0044] Figure 21 A schematic diagram of a kneading massage device integrated into the backrest A;

[0045] Figure 22 This is a reference diagram of the kneading massage device integrated into the backrest A in use. DETAILED DESCRIPTION

[0046] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0047] like Figure 1 and 5 As shown, a kneading massage device includes a massager base B. In this embodiment, the massager base B includes a mounting base 1 and a slide 2 slidably mounted on the mounting base 1. The mounting base 1 is used to be mounted inside the seat back, and the slide 2 can slide along the height direction of the mounting base 1. The slide 2 is rotatably provided with a rotating shaft B1 and a first driving mechanism C for driving the rotating shaft B1 to rotate. The rotating shaft B1 is connected to a kneading rod B2, and a massage head B3 is mounted on the end of the kneading rod B2 away from the rotating shaft B1. Figure 2 and Figure 4 As shown, the rotating shaft B1 is provided with an annular groove B11, and the end of the kneading rod B2 away from the massage head B3 is rotatably sleeved on the annular groove B11. Figure 4 As can be seen, the sidewalls of annular groove B11 are inclined relative to the centerline of rotating shaft B1, forming an angle r between the centerline of annular groove B11 and the centerline of rotating shaft B1. The kneading rods B2, located on either side of one end of rotating shaft B1, are in sliding contact with the sidewalls of annular groove B11. When the massage head B3 encounters resistance from the seat cover or the user's back, the first drive mechanism C rotates rotating shaft B1. Driven by the inclined sidewalls of annular groove B11, the kneading rods B2 are forced to swing back and forth along the axis of rotating shaft B1, causing the distal massage head B3 to knead and massage the user's back. To simultaneously massage the meridians on both sides of the user's spine, two sets of kneading rods B2 are connected to rotating shaft B1. These two sets of kneading rods B2 are symmetrically arranged along the width of rotating shaft B1. Two sets of annular grooves B11 are symmetrically arranged on rotating shaft B1, corresponding one-to-one with the two sets of kneading rods B2. The connection method and structure of the two sets of kneading rods B2 are the same and will not be described again here.

[0048] Based on the above structural design, the working principle of the kneading massage device is as follows: Figure 1 and 19After the device is integrated into the seat backrest A, the surface of the backrest A is provided with a cover A1. When the kneading massage device is in operation, the first drive mechanism C rotates the rotating shaft B1 and transmits power to the kneading rods B2. Because the massage heads B3 at the distal ends of the kneading rods B2 encounter resistance from the seat cover A1 or the user's back H, the kneading rods B2 are unable to follow the circular motion around the rotating shaft B1. Instead, the massage heads B3 continuously act on the user's back F. Furthermore, the inclined sidewalls of the annular groove B11 form an inclined cam transmission with the sidewalls of the kneading rods B2. This allows the rotation of the rotating shaft B1 to force the kneading rods B2 to oscillate back and forth along the axis of the rotating shaft B1. This allows the kneading rods B2 to swing left and right, causing the distal massage heads B3 to perform a reciprocating oscillating kneading massage on the user's back, resulting in a highly effective massage effect. In this embodiment, the two sets of kneading rods B2 are symmetrically arranged, so the swing paths of the two massage heads B3 are also symmetrical along the user's spine, ensuring consistent massage of the meridians on both sides of the spine and providing a comfortable massage experience.

[0049] Re-attend Figure 1 In this embodiment, a massage head B3 includes two massage rollers B31, which are symmetrically mounted on the left and right ends of the kneading rod B2, with a gap between them. This design allows the two massage rollers B31 to form two points of action when the massage head B3 massages the user's back. These two points of action reciprocate to knead a single meridian on the back, deeply massaging the user's back and enhancing the massage effect, resulting in a thorough relaxation of the user's lower back.

[0050] like Figure 1 and 2 As shown, the rotating shaft B1 includes a central axis B12 and a sleeve B13 fixedly mounted on the central axis B12. An annular groove B11 is formed on the sleeve B13. The annular groove B11 has two inner side walls a distributed on the left and right. The center lines of the two inner side walls a are inclined relative to the center line of the rotating shaft B1. Figure 3 and Figure 4 As shown, one end of the kneading rod B2 has an annular hole B21 that fits within the annular groove B11. The annular hole B21 rotatably fits within the annular groove B11. Specifically, the annular hole B21 has outer walls b on both sides, each of which engages with and slides against two inner walls a. A first drive mechanism C directly rotates the central axis B12, which in turn drives the sleeve B13. The continuous rotation of the sleeve B13 causes the rotational motion of the inner walls a of the annular groove B11 to force the annular hole B21 to oscillate back and forth along the central axis B12, thereby driving the massage head B3 at the distal end of the kneading rod B2 to oscillate left and right.

[0051] refer to Figure 3To facilitate the assembly of the annular sleeve hole B21, a circular protrusion c is detachably installed on one end of the sleeve B13. An outward-protruding annular boss d is provided on the surface of the sleeve B13 near the circular protrusion c. The inner wall of the circular protrusion c and the space enclosed by the inner wall of the circular protrusion c and the circumferential surface of the sleeve B13 constitute an annular groove B11.

[0052] like Figure 5 As shown, the slide 2 is provided with a second drive mechanism D, which can drive the kneading rod B2 to rotate relative to the annular groove B11, so that the massage head B3 can move away from or close to the slide 2. When the massage function is not in use, the massage head B3 and the kneading rod B2 are stored in the backrest, that is, the massage head B3 is closer to the slide 2, which avoids the massage head B3 protruding from the backrest and causing discomfort to the user's waist, thereby ensuring normal riding comfort. When the user needs to use the massage head B3 for kneading massage, the second drive mechanism D drives the kneading rod B2 to rotate outward, so that the massage head B3 at the far end of the kneading rod B2 can be pushed out to the front side of the backrest F (refer to Figure 19 ) and acts on the occupant's lower back. Subsequently, the first drive mechanism C drives the rotating shaft B1 to rotate, causing the distal massage head B3 to perform a reciprocating oscillating kneading massage on the user's back. After the massage is complete, the second drive mechanism D drives the kneading rod B2 to rotate toward the slide 2, retracting the massage head B3 toward the slide 2.

[0053] Furthermore, Figure 6 、 8 As shown in Figure 9, the second drive mechanism D comprises a slider D4 slidably mounted on the slide 2 and a thrust assembly that controls the movement of slider D4. The kneading rod B2 and slider D4 are connected by a retaining rod D5. One end of the retaining rod D5 is hinged to the middle of the kneading rod B2, and the other end is hinged to the slider D4. As the slider D4 slides, it drives the kneading rod B2 to rotate relative to the annular groove B11 via the retaining rod D5. The thrust assembly drives the slider D4 upward, synchronously rotating the kneading rod B2 outward via the retaining rod D5. The thrust assembly drives the slider D4 downward, synchronously rotating the kneading rod B2 inward, driven by the linkage of the retaining rod D5, thereby retracting the massage head B3 toward the slide 2. To enable the kneading rod B2 to swing left and right along the width of the slide 2 when the rotating shaft B1 rotates, in this embodiment, the retaining rod D5 and the kneading rod B2 are connected by a ball joint. In addition to the above embodiment, a ball joint connection between the retaining rod D5 and the slider D4 can also be used, which still achieves the same purpose. The driving modes of the two groups of kneading rods B2 are the same, so only one group of kneading rods B2 is taken as an example for detailed description.

[0054] For further information, see Figure 10 and 11The thrust assembly includes a stopper D2 abutting against the slider D4 and a drive component D3 that drives the stopper D2 in the direction of the slider D4's movement. An elastic component D1 is disposed between the slider 2 and the slider D4, exerting a force that forces the slider D4 against the stopper D2. When the massage head B3 is subjected to external pressure, the slider D4 overcomes the resistance of the elastic component D1 and slides toward the slider 2. With this design, when a user desires to massage the massage head B3, the drive component D3 drives the stopper D2 away from the slider D4. During this process, because the elastic component D1 exerts a force that continuously presses the slider D4 against the stopper D2, the slider D4 moves synchronously with the stopper D2. Consequently, the slider D4, in conjunction with the retaining rod D5, drives the kneading rod B2 to rotate outward relative to the annular groove B11, allowing the massage head B3 at the distal end of the kneading rod B2 to be ejected toward the front of the backrest A. After the massage is completed, the driving component D3 drives the limit block D2 to move toward the slider D4. At this time, the limit block D2 pushes the slider D4 to slide, overcoming the resistance of the elastic component D1. As a result, under the linkage action of the retaining rod D5, the kneading rod B2 can be driven to rotate inward, so that the massage head B3 is retracted toward the slide 2.

[0055] Based on this, massage head B3 also has a passive collapse function when in operation. Specifically, when massage head B3 is in operation and a vehicle collision or other unexpected situation occurs, and massage head B3 is subjected to external force, slider D4 can overcome the resistance of elastic component D1 and slide. Driven by the linkage of retaining rod D5, it can quickly retract massage head B3 toward slide seat 2, effectively preventing damage to the body and improving massage safety. When the external force disappears, elastic component D1 resets, pushing slider D4 to slide, which in turn automatically returns kneading rod B2 and massage head B3 to their operating positions. This design protects massage head B3 from damage, saves costs, and eliminates the need for component replacement, offering a highly practical advantage.

[0056] The elastic component D1 can be a compression spring, a tension spring, a torsion spring, a leaf spring, a spring, etc. In this embodiment, the elastic component D1 is a compression spring. Figure 10 and 11The compression spring abuts between the slider D4 and the lower end of the slide 2. The limit block D2 moves downward along the height direction of the slide 2, that is, moves toward the compression spring, which pushes the slider D4 downward to compress the compression spring, forcing the compression spring to accumulate force. The slider D4 moves downward and can drive the kneading rod B2 to rotate toward the slide 2 via the retaining rod D5. When the limit block D2 moves away from the slider D4, that is, moves upward, the elastic potential energy of the compression spring is released. The thrust generated by the compression spring can cause the slider D4 to move synchronously with the limit block D2, thereby driving the kneading rod B2 to rotate outward via the retaining rod D5. In this state, when the massage head B3 is pressed by external force, the slider D4 can squeeze the compression spring downward, and then drive the kneading rod B2 to quickly retract toward the slide 2 through the retaining rod D5; when the external force disappears, the compression spring can release energy and push the slider D4 to move upward until the slider D4 abuts against the limit block D2. At this time, the kneading rod B2 returns to the working position and the massage head B3 is not damaged by external force.

[0057] like Figure 9 As shown, a guide rod D6 extending along the height of the slide 2 is fixed to the slide 2. The elastic component D1, slider D4, and stopper D2 are sequentially mounted on the guide rod D6 from bottom to top. The slider D4 and stopper D2 can slide up and down relative to the guide rod D6. This design ensures the reliable installation and movement of the elastic component D1, slider D4, and stopper D2.

[0058] Further, such as Figure 12 and Figure 13 As shown, there are two groups of guide rods D6, which are symmetrically arranged along the width direction of the slide 2. One group of guide rods D6 corresponds to one group of kneading rods B2, and two groups of elastic components D1 and retaining rods D5 are also provided. The two groups of elastic components D1 are respectively mounted on the two guide rods D6, and both ends of the limit block D2 and the two ends of the slider D4 are respectively slidably connected to the two guide rods D6. The two retaining rods D5 are symmetrically arranged on the sides of the two groups of kneading rods B2.

[0059] Please refer to Figure 1 and Figure 13 The drive component D3 includes a second motor D31 fixed to the slide 2 and a second screw D32 driven by the second motor D31. The second screw D32 extends along the height of the slide 2 and is positioned between the two sets of guide rods D6. The middle portion of the limit block D2 is threadedly mounted on the second screw D32. The second motor D31 drives the limit block D2 downward, driving the slider D4 to simultaneously squeeze the two sets of elastic components D1, thereby simultaneously retracting the two sets of kneading rods B2 inward, ensuring the synchronization of the movement of the two sets of kneading rods B2. This layout also improves the overall compactness of the structure, allowing the mechanism to be better integrated into the vehicle seat backrest.

[0060] Depend on Figure 13 As can be seen, a mounting seat D7 is fixed to the lower end of the slide 2. The ends of two guide rods D6 are fixedly connected to the widthwise ends of the mounting seat D7. The lower end of the second screw rod D32 is pivotally supported in the middle of the mounting seat D7. On the same guide rod D6, one end of the elastic component D1 is supported on the mounting seat D7, while the other end abuts the corresponding slider D4. This design ensures reliable installation.

[0061] Combine Figure 13 and Figure 16 As shown, both ends of the limit block D2 have first connection holes D21, which are respectively slidably mounted on the two sets of guide rods D6. The middle of the limit block D2 is provided with a second connection hole D22, which is threadedly mounted on the second screw rod D32.

[0062] Please refer to Figure 14 and 15 The two ends of the slider D4 are provided with sleeve parts D41 which are respectively slidably mounted on the two sets of guide rods D6, and one end of the compression spring rests on the corresponding sleeve part D41. The middle part of the slider D4 has a downwardly concave avoidance groove D42, and the second screw rod D32 is located above the avoidance groove D42, further improving the compactness of the structure. Figure 15 It can be seen that a first roller D8 is provided on the lower side of the slider D4 in sliding contact with the slide 2. The first roller D8 increases the smoothness of the slider D4 sliding on the slide 2. On the other hand, in the event of a collision, the slider D4 can also smoothly squeeze the compression spring downward to ensure that the kneading rod B2 can be quickly retracted.

[0063] like Figure 1 and 7 As shown, the mounting base 1 is equipped with a third drive mechanism E, which drives the slide 2 up and down along the height of the mounting base 1. When the massage heads B3 perform a kneading massage on the user's lower back, the third drive mechanism E drives the slide 2 up and down, driving the two massage heads B3 up and down along the meridians on both sides of the user's spine, thereby simulating a walking kneading massage function and enhancing the massage effect. Furthermore, by controlling the outward rotation angle of the kneading rod B2, the massage depth of the massage heads B3 can be adjusted, ensuring that users of all body types receive an effective massage.

[0064] like Figure 1As shown, the third drive mechanism E includes a linear drive unit E1 disposed at one end of the mounting base 1 in the width direction, and a guide assembly E2 disposed at the other end. The linear drive unit E1 drives the slider 2 in its upward and downward motion, while the guide assembly E2 guides and supports the slider 2 in its upward and downward motion, ensuring smoother movement of the slider 2 on the mounting base 1. This design has the advantage of locating the linear drive unit E1 and the guide assembly E2 at both ends, reserving installation space in the middle of the slider 2 for convenient installation of massage components. This design offers the advantages of a rational and compact layout, enabling the product to be integrated into the seat back in a thinner and more compact manner.

[0065] Furthermore, Figure 1 and 7 As shown, the linear drive unit E1 includes a first screw rod E11 extending along the height direction of the mounting base 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 base 1. Figure 17 It can be seen that both ends of the first screw rod E11 are fixedly supported on the mounting base 1 through the support base E3. The first motor E13 is fixedly mounted on the slide 2. The first motor E13 drives the nut sleeve E12 to rotate, which can drive the nut sleeve E12 to move up and down along the axial spiral of the first screw rod E11, thereby driving the first motor E13 and the slide 2 to move up and down as a whole. Since the first screw rod E11 is offset, the slide 2 is prone to shaking clearance. Therefore, the guide assembly E2 at the right end can absorb the shaking clearance of the slide 2, ensuring the stability of the lifting movement of the slide 2. At the same time, by fixing the first screw rod E11, a more stable support can be provided for the slide 2.

[0066] like Figure 1 and 6 As shown, the guide assembly E2 includes a guide rail E21 fixed to the right end of the mounting base 1. The guide rail E21 extends along the height of the mounting base 1. As shown in FIG18 , a second roller E22 is provided at the bottom of the slide 2 corresponding to the guide rail E21. The second roller E22 slides in contact with the bottom of the guide rail E21. This design improves the smoothness of the slide 2's movement while also offering the advantage of low cost.

[0067] Please refer to Figure 18 The bottom of the slide 2 is rotatably provided with multiple groups of third rollers 21 that are in sliding contact with the mounting base 1. The third rollers 21 can further improve the smoothness of the sliding of the slide 2.

[0068] In addition to being able to realize the kneading massage function, the kneading massage device provided in this embodiment can also simulate walking massage, specifically as follows: the second drive mechanism D drives the kneading rod B2 to rotate outward, so that the massage head B3 at the far end of the kneading rod B2 can be pushed out toward the front side of the backrest F and act on the occupant's waist and back. The third drive mechanism E drives the slide 2 to move up and down along the mounting base 1, which can drive the massage head B3 to move up and down along the meridians on both sides of the user's back spine, thereby simulating the massage function of walking massage.

[0069] like Figure 21 As shown, this embodiment also provides a car seat, including a backrest A, in which the kneading and massaging device is integrated and installed. When the kneading and massaging device is in operation, the user can be massaged by performing fixed-point kneading, walking kneading, walking massage, etc. During installation, an assembly plate F is fixedly installed on the front side of the backrest A facing the mounting base 1. The assembly plate F is used to protect and shield the kneading and massaging device. A second opening F1 is opened on the assembly plate F. The second opening F1 is used to avoid the massage head B3 from performing walking kneading massage (refer to Figure 22 ). For example Figure 17 and 20 As shown, the slide 2 is mounted with a forward-projecting support 22, to which a baffle G is fixedly connected. This baffle G covers and shields the slide 2. A first opening G1 is defined in the center of the baffle G, which allows the two massage heads B3 to be ejected and retracted. Furthermore, fourth rollers G2 are distributed on the baffle G, each of which is in sliding contact with the surface of the assembly plate F.

[0070] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make various similar expressions without violating the purpose and claims of the present invention. Such changes fall within the scope of protection of the present invention.

Claims

1. A kneading massage device, characterized in that: The massager comprises a massager base (B), a rotating shaft (B1) and a first driving mechanism (C) for driving the rotating shaft (B1) to rotate are rotatably provided on the massager base (B), a kneading rod (B2) is connected to the rotating shaft (B1), a massage head (B3) is installed at one end of the kneading rod (B2) away from the rotating shaft (B1), and an annular groove (B11) is provided on the rotating shaft (B1); One end of the kneading rod (B2) is rotatably mounted on the annular groove (B11), and both side walls of the annular groove (B11) are inclined relative to the center line of the rotating shaft (B1). Both sides of the kneading rod (B2) near one end of the rotating shaft (B1) are in sliding contact with both side walls of the annular groove (B11). When the massage head (B3) is subjected to resistance from the seat cover or the user's back, the first drive mechanism (C) drives the rotating shaft (B1) to rotate, and under the transmission action of the inclined side wall of the annular groove (B11), the kneading rod (B2) is forced to swing back and forth along the axis of the rotating shaft (B1), so that the massage head (B3) at the far end performs kneading and massage on the user's back; The rotating shaft (B1) is connected to two groups of kneading rods (B2).

2. The kneading massage device according to claim 1, characterized in that: The rotating shaft (B1) includes a central shaft (B12) and a sleeve (B13) fixedly mounted on the central shaft (B12); the annular groove (B11) is provided on the sleeve (B13); one end of the kneading rod (B2) has an annular sleeve hole (B21) adapted to the annular groove (B11); the annular sleeve hole (B21) is rotatably mounted on the annular groove (B11).

3. The kneading massage device according to claim 1, characterized in that: The massager base (B) is provided with a second driving mechanism (D) for driving the kneading rod (B2) to rotate relative to the annular groove (B11) so that the massage head (B3) can move away from or toward the massager base (B).

4. The kneading massage device according to claim 3, characterized in that: The second driving mechanism (D) includes a slider (D4) slidably mounted on the massager base (B), and a thrust assembly for controlling the sliding of the slider (D4); the kneading rod (B2) and the slider (D4) are connected via a retaining rod (D5); the two ends of the retaining rod (D5) are hinged to the kneading rod (B2) and the slider (D4), respectively; wherein the retaining rod (D5) and the kneading rod (B2) are connected via a ball joint; the slider (D4) slides and can drive the kneading rod (B2) to rotate relative to the annular groove (B11) via the retaining rod (D5).

5. The kneading massage device according to claim 4, characterized in that: The thrust assembly comprises a limit block (D2) abutting against the slider (D4), and a driving component (D3) driving the limit block (D2) to move along the sliding direction of the slider (D4); an elastic component (D1) is provided between the massager base (B) and the slider (D4); the elastic component (D1) applies a force to make the slider (D4) abut against the limit block (D2); when the massage head (B3) is pressed by an external force, the slider (D4) can overcome the resistance of the elastic component (D1) and slide, so that the massage head (B3) moves toward the massager base (B).

6. The kneading massage device according to claim 5, characterized in that: The elastic component (D1) is a compression spring, which abuts between the slider (D4) and the end of the massager base (B). The limit block (D2) moves in a direction close to the compression spring, which can force the compression spring to store force through the slider (D4). The limit block (D2) moves in a direction away from the slider (D4), which can release the elastic potential energy of the compression spring. The thrust generated by the compression spring can make the slider (D4) move synchronously with the limit block (D2).

7. The kneading massage device according to claim 5, characterized in that: A guide rod (D6) extending in the height direction is fixedly provided on the massager base (B); the elastic component (D1), the slider (D4) and the limit block (D2) are sequentially mounted on the guide rod (D6) in the height direction; and the slider (D4) and the limit block (D2) are capable of sliding up and down relative to the guide rod (D6).

8. The kneading massage device according to claim 1, wherein: The massager base (B) includes a mounting base (1) for being assembled inside a seat back, and a slide (2) slidably connected to the mounting base (1), wherein the slide (2) slides along the height direction of the mounting base (1), the rotating shaft (B1) and the first driving mechanism (C) are arranged on the slide (2), and the mounting base (1) is provided with a third driving mechanism (E), which is used to drive the slide (2) to slide along the height direction of the mounting base (1).

9. The kneading massage device according to claim 8, characterized in that: The third driving mechanism (E) comprises a linear driving unit (E1) arranged at one end in the width direction of the mounting base plate (1), and a guide assembly (E2) arranged at the other end, wherein the linear driving unit (E1) is used to drive the sliding seat (2) to move up and down, and the guide assembly (E2) is used to guide and support the sliding seat (2) to move up and down.

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

Images