Kneading massage device and automobile seat with same

Abstract

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 rotationally 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 massage device has the advantage that the waist and the back of a user can be massaged by simulating a kneading manipulation.

Description

Technical Field

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

[0002] Car seats are an important part of cars. With the improvement of people's quality of life, people pay more and more attention to the quality, quality and usability of car seats. Especially for passengers who drive and ride for a long time, it is easy to cause physical fatigue and muscle stiffness due to maintaining the same posture for a long time. In order to improve the comfort of car seats, more and more car seats are equipped with massage functions to solve the fatigue problem derived from long-term driving.

[0003] However, currently, massage mechanisms for the waist and back area on the market are generally divided into air bag massage and mechanical massage. Among them, air bag massage uses a flexible air bag to act on the user's waist and back area, with low massage force and poor massage effect. Most mechanical massage devices use a rotatable massage device to directly massage the user's back. Although the massage force is greater than that of air bag massage, it has the disadvantages of high cost and large size. Summary of the invention

[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 the present invention is as follows:

[0006] A kneading massage device, the key of which is: comprising a massager base, a rotating shaft and a first driving mechanism for driving the rotating shaft to rotate are rotatably arranged on the massager base, a kneading rod is connected to the rotating shaft, a massage head is installed at one end of the kneading rod away from the rotating shaft, and an annular groove is arranged 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 is subjected to resistance from the seat cover or the user's back, the first drive mechanism drives the rotating shaft to rotate, and under the transmission effect 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 far end performs kneading massage on the user's back;

[0009] The rotating shaft is connected with two groups of kneading rods.

[0010] With the above structure, the first driving 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 swing kneading massage on the user's back.

[0011] Preferably, the rotating shaft comprises a central shaft and a sleeve fixedly mounted on the central shaft, the annular groove is provided on the sleeve, 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 close to the massager base.

[0013] Preferably, the second driving mechanism comprises 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 comprises 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. The limit block moves toward the compression spring to force the compression spring to store force through the slider. The limit block moves away from the slider to 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 fixedly disposed on the massager base, and 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 seat slidably connected to the mounting base, the slide seat slides along the height direction of the mounting base, the rotating shaft and the first driving mechanism are arranged on the slide seat, and a third driving mechanism is provided on the mounting base, the third driving mechanism is used to drive the slide seat 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 object of the present invention is to provide a car seat, including a backrest, the key of which is that the kneading and massaging device mentioned above is integrated and installed inside the backrest.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. With the kneading massage device provided by the present invention, the first driving 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 is subject to the resistance of the seat cover or the user's back, and the inclined side wall of the annular groove and the side wall of the kneading rod form an inclined cam transmission, the rotation of the rotating shaft can force the kneading rod to swing back and forth along the axial direction of the rotating shaft, that is, the kneading rod can swing left and right, so that the massage head at the far end forms a reciprocating swing 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 the present invention not only realizes that the massage head is stored inside the backrest in the non-working state, avoiding the protrusion of the backrest to cause discomfort to the user's waist and ensuring normal riding comfort, but also can be unfolded to protrude from the backrest when massage is needed to realize the massage function. In addition, in the event of a collision accident, the massage head can also be collapsed reversibly, improving the safety of massage.

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

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

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

[0026] Figure 3It is an exploded schematic diagram of the sleeve B13 and the kneading rod B2;

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

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

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

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

[0031] Figure 8 It is a structural schematic diagram of the kneading massage device when the massage head B3 is in the retracted state;

[0032] Fig. 9 It is a structural schematic diagram of the kneading massage device when the massage head B3 is unfolded;

[0033] Fig.10 is a cross-sectional view of the kneading massage device in a state where the massage head B3 is retracted;

[0034] Fig.11 is a cross-sectional view of the kneading massage device in a state where the massage head B3 is unfolded;

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

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

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

[0038] Fig.15 It is a structural schematic diagram of the slider D4;

[0039] Fig.16 It is a structural schematic diagram of the limit block D2;

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

[0041] Fig.18 It is a structural schematic diagram of the slide 2;

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

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

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

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

[0046] The present invention is further described below in conjunction with embodiments and 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. A rotating shaft B1 and a first driving mechanism C for driving the rotating shaft B1 to rotate are rotatably arranged on the slide 2, wherein a kneading rod B2 is connected to the rotating shaft B1, and a massage head B3 is installed at 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 It can be seen that the side walls of the annular groove B11 are inclined relative to the center line of the rotating shaft B1, that is, the center line of the annular groove B11 forms an angle r with the center line of the rotating shaft B1, and the two sides of the kneading rod B2 near one end of the rotating shaft B1 are in sliding contact with the 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 can force the kneading rod B2 to swing back and forth along the axis of the rotating shaft B1 under the transmission action of the inclined side walls of the annular groove B11, so that the massage head B3 at the far end performs kneading massage on the user's back. In order to knead the meridians on both sides of the spine of the user's back at the same time, two groups of kneading rods B2 are connected to the rotating shaft B1, and the two groups of kneading rods B2 are symmetrically arranged along the width direction of the rotating shaft B1. The rotating shaft B1 is symmetrically provided with two groups of annular grooves B11, and the two groups of annular grooves B11 correspond to the two groups of kneading rods B2. The connection method and structure of the two sets of kneading rods B2 are the same, which will not be described 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 back A, the surface of the back A is provided with a cover A1. When the kneading massage device is working, the first drive mechanism C drives the rotating shaft B1 to rotate and transmits it to the kneading rod B2. Since the massage head B3 at the far end of the kneading rod B2 will be subject to the resistance of the seat cover A1 or the user's back H, the kneading rod B2 cannot make a circular motion around the rotating shaft B1, and the massage head B3 will continuously act on the user's back F. In addition, the inclined side wall of the annular groove B11 and the side wall of the kneading rod B2 form an inclined cam transmission, so the rotation of the rotating shaft B1 can force the kneading rod B2 to swing back and forth along the axis of the rotating shaft B1, that is, the kneading rod B2 can swing left and right, so that the massage head B3 at the far end forms a reciprocating swing kneading massage on the user's back, which has the advantage of good massage effect. In this embodiment, since the two groups of kneading rods B2 are symmetrically arranged, the swinging trajectories of the two massage heads B3 are also symmetrical along the user's spine, ensuring the consistency of the meridian massage on both sides of the spine, and the massage comfort is good.

[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, and there is a gap between the two massage rollers B31. With such a design, when the massage head B3 kneads the user's back, the two massage rollers B31 can form two action points on the user's back, and the two action points reciprocate to knead a meridian on the back, which can deeply massage the user's back, improve the massage effect, and make the user's waist and back completely relaxed.

[0050] like Figure 1 and 2 As shown, the rotating shaft B1 includes a central shaft B12 and a sleeve B13 fixedly mounted on the central shaft 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 sleeve hole B21 adapted to the annular groove B11, and the annular sleeve hole B21 is rotatably mounted on the annular groove B11. Specifically, the annular sleeve hole B21 has outer side walls b on both sides, and the two outer side walls b are respectively matched with the two inner side walls a, and the two outer side walls b are respectively in sliding contact with the two inner side walls a. The first driving mechanism C directly drives the central axis B12 to rotate, which can drive the sleeve B13 to rotate. The sleeve B13 rotates continuously, and the rotational motion of the two inner side walls a of the annular groove B11 can force the annular sleeve hole B21 to swing back and forth along the axial direction of the central axis B12, thereby driving the massage head B3 at the far end of the kneading rod B2 to swing left and right.

[0051] refer to Figure 3To facilitate the assembly of the annular sleeve hole B21, a circular protrusion c is detachably installed at one end of the sleeve B13, and an outwardly 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 Fig.19 ), and acts on the waist and back of the occupant. Afterwards, the first drive mechanism C drives the rotating shaft B1 to rotate, so that the massage head B3 at the far end can perform a reciprocating swing kneading massage on the user's back. After the massage is finished, the second drive mechanism D drives the kneading rod B2 to rotate toward the slide 2, so that the massage head B3 is retracted toward the slide 2.

[0053] Furthermore, Figure 6 , 8 As shown in Figures 9 and 10, the second driving mechanism D includes a slider D4 slidably arranged on the slide 2, and a thrust assembly for controlling the sliding of the slider D4. The kneading rod B2 is connected to the slider D4 through 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. The slider D4 slides, and can drive the kneading rod B2 to rotate relative to the annular groove B11 through the retaining rod D5. The thrust assembly drives the slider D4 to slide upward, and can drive the kneading rod B2 to rotate outward synchronously through the retaining rod D5. The thrust assembly drives the slider D4 to slide downward, and can drive the kneading rod B2 to rotate inward synchronously under the linkage action of the retaining rod D5, so that the massage head B3 is retracted toward the slide 2. In order to realize that the kneading rod B2 can swing left and right along the width direction 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, the retaining rod D5 and the slider D4 can also be connected by a ball joint, which can also achieve the same purpose as above. 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 Fig.10 and 11The thrust assembly includes 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 slide 2 and the slider D4, and the elastic component D1 exerts 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 slide 2. With such a design, when the user needs to use the massage head B3 for massage, the driving component D3 drives the limit block D2 to move away from the slider D4. In this process, since the elastic component D1 exerts a force to make the slider D4 continuously abut against the limit block D2, the slider D4 can move synchronously with the limit block D2, so that under the linkage action of the retaining rod D5, the kneading rod B2 can be driven to rotate outward relative to the annular groove B11, so that the massage head B3 at the far end of the kneading rod B2 can be ejected toward the front side of the backrest A. After the massage is finished, the driving component D3 drives the limit block D2 to move towards the direction close to the slider D4. At this time, the limit block D2 pushes the slider D4 to slide to overcome the resistance of the elastic component D1, so that 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 seat 2.

[0055] Based on this, the massage head B3 also has a passive collapse function in the working state. The specific process is as follows: in the working state of the massage head B3, when the vehicle collides or other emergencies occur and the massage head B3 is compressed by external force, the slider D4 can overcome the resistance of the elastic component D1 and slide. Under the linkage action of the retaining rod D5, the massage head B3 can be driven to quickly retract toward the slide seat 2, effectively avoiding the massage head B3 from causing harm to the human body and improving the safety of the massage. When the external force disappears, the elastic component D1 is reset, which can push the slider D4 to slide, thereby driving the kneading rod B2 and the massage head B3 to automatically return to the working state. Such a design can protect the massage head B3 from damage, save costs and eliminate the trouble of replacing parts, and has the advantage of good practicality.

[0056] The elastic component D1 may be a compression spring, a tension spring, a torsion spring, a leaf spring, a spring sheet, etc. In this embodiment, the elastic component D1 is a compression spring. Fig.10 and 11, the compression spring abuts between the slider D4 and the lower end of the slide 2, and the limit block D2 moves downward along the height direction of the slide 2, that is, moves in the direction close to the compression spring, which can push the slider D4 downward to compress the compression spring, so as to force the compression spring to store force, and the slider D4 moves downward, which can drive the kneading rod B2 to rotate toward the slide 2 through the retaining rod D5. When the limit block D2 moves in the direction away from the slider D4, that is, moves upward, the elastic potential energy of the compression spring can be released, and the thrust generated by the compression spring can make the slider D4 move synchronously with the limit block D2, so as to drive the kneading rod B2 to rotate outward through the retaining rod D5. In this state, when the massage head B3 is compressed by external force, the slider D4 can squeeze the compression spring downward, and then drive the kneading rod B2 to be quickly retracted toward the slide seat 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 Fig. 9 As shown, a guide rod D6 extending in the height direction is fixed on the slide 2, and the elastic component D1, the slider D4 and the limit block D2 are sequentially mounted on the guide rod D6 from bottom to top, and the slider D4 and the limit block D2 can slide up and down relative to the guide rod D6. Such a design ensures the reliability of the installation and movement of the elastic component D1, the slider D4 and the limit block D2.

[0058] Further, such as Fig.12 and Fig.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 both ends of the slider D4 are respectively slidably connected to the two guide rods D6, and 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 Fig.13 The driving component D3 includes a second motor D31 fixed on the slide 2 and a second screw rod D32 driven to rotate by the second motor D31. The second screw rod D32 extends along the height direction of the slide 2 and is arranged between the two groups of guide rods D6. The middle part of the limit block D2 is threadedly mounted on the second screw rod D32. The second motor D31 drives the limit block D2 to move downward, which can drive the slider D4 to squeeze the two groups of elastic components D1 at the same time, and then can drive the two groups of kneading rods B2 to retract inward at the same time, ensuring the synchronization of the movement of the two groups of kneading rods B2. At the same time, such a layout can improve the compactness of the overall structure, so that the mechanism can be better integrated and installed on the backrest of the car seat.

[0060] Depend on Fig.13 It can be seen that a mounting seat D7 is fixedly provided at the lower end of the slide 2, the ends of the two guide rods D6 are fixedly connected to the two ends of the mounting seat D7 in the width direction, and the lower end of the second screw rod D32 is rotatably 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, and the other end is in contact with the corresponding slider D4. With such consideration, the reliability of the installation is guaranteed.

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

[0062] Please refer to Fig.14 and 15 The two ends of the slider D4 are provided with sleeve joints D41 which are respectively slidably mounted on the two sets of guide rods D6, and one end of the compression spring abuts against the corresponding sleeve joints D41. The middle of the slider D4 has a downwardly concave avoidance groove D42, and the second screw rod D32 is located above the avoidance groove D42, which further improves the compactness of the structure. Fig.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 provided with a third driving mechanism E, which can drive the slide 2 to move up and down along the height direction of the mounting base 1. When the massage head B3 performs kneading massage on the user's waist and back, the third driving mechanism E drives the slide 2 to move up and down, which can drive the two massage heads 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 kneading and improving the massage effect. At the same time, by controlling the outward rotation angle of the kneading rod B2, the massage depth of the massage head B3 can also be adjusted to ensure that users of all body types can get effective massage.

[0064] like Figure 1As shown, the third drive mechanism E includes a linear drive unit E1 arranged at one end of the mounting base 1 in the width direction, and a guide assembly E2 arranged at the other end. The linear drive unit E1 can drive the slide 2 to move up and down, and the guide assembly E2 can guide the support slide 2 to move up and down, so that the slide 2 can move up and down on the mounting base 1 more smoothly. The advantage of this design is that by arranging the linear drive unit E1 and the guide assembly E2 at both ends, an installation space can be reserved for the middle of the slide 2 to facilitate the installation of massage components, which has the advantages of reasonable and compact layout, and helps 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 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 base plate 1. Fig.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 seat 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, thereby ensuring the stability of the lifting and lowering 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, and the guide rail E21 extends along the height direction 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, and the second roller E22 is in sliding contact with the bottom of the guide rail E21. Such a design improves the smoothness of the sliding of the slide 2 and also has the advantage of low cost.

[0067] Please refer to Fig.18 A plurality of third rollers 21 are rotatably disposed at the bottom of the slide 2 and are in sliding contact with the mounting base plate 1 . The third rollers 21 can further improve the smoothness of the sliding of the slide 2 .

[0068] In addition to realizing the kneading massage function, the kneading massage device provided in this embodiment can also simulate walking massage, specifically as follows: the second driving 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 and act on the waist and back of the occupant, and the third driving mechanism E drives the slide 2 to move up and down along the mounting base 1, that is, it 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 Fig.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 fixed-point kneading, walking kneading, walking massage, etc. During installation, an assembly plate F is fixedly installed at the front side of the backrest A facing the installation base plate 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 Fig. 22 ). Fig.17 and 20 As shown, a support 22 protruding forward is installed on the slide 2, and a baffle G is fixedly connected to the support 22, which can cover and block the slide 2. A first opening G1 is opened in the middle of the baffle G, and the first opening G1 is used to prevent the two massage heads B3 from being pushed outward and retracted inward. Further, fourth rollers G2 are distributed on the baffle G, and each fourth roller G2 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, and such changes all fall within the scope of protection of the present invention.

Claims

1. A kneading massage device, Features: 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 arranged 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 arranged 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), and both sides of the kneading rod (B2) close to one end of the rotating shaft (B1) are in sliding contact with the side walls of the annular groove (B11) respectively; 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 effect 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 with two groups of kneading rods (B2).

2. The kneading massage device according to claim 1, Features: The rotating shaft (B1) comprises a central shaft (B12) and a sleeve (B13) fixedly sleeved 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 sleeved on the annular groove (B11).

3. The kneading massage device according to claim 1, Features: 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 towards the massager base (B).

4. The kneading massage device according to claim 3, Features: The second driving mechanism (D) comprises 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 respectively hinged to the kneading rod (B2) and the slider (D4); 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, Features: 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) exerts 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, Features: The elastic component (D1) is a compression spring, and the compression spring 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, Features: The massager base (B) is fixedly provided with a guide rod (D6) extending in the height direction thereof; 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) can slide up and down relative to the guide rod (D6).

8. The kneading massage device according to claim 1, Features: The massager base (B) comprises a mounting base (1) for being mounted inside a seat back, and a slide seat (2) slidably connected to the mounting base (1), wherein the slide seat (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 seat (2), and the mounting base (1) is provided with a third driving mechanism (E), and the third driving mechanism (E) is used to drive the slide seat (2) to slide along the height direction of the mounting base (1).

9. The kneading massage device according to claim 8, Features: The third driving mechanism (E) comprises a linear driving unit (E1) arranged at one end of the mounting base plate (1) in the width direction, 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), Features: The backrest (A) is integrated with the kneading massage device according to any one of claims 1 to 9.

Images