Safe collapsing mechanism of massager

Abstract

The utility model discloses a safe crumple mechanism of a massager, which comprises a base, a swing arm rotatably mounted on the base, a massage component arranged at the far end of the swing arm, a support component arranged below the swing arm and capable of sliding relative to the base, a connecting rod hinged to the support component, the other end of the connecting rod hinged to the middle of the swing arm, and a thrust mechanism arranged on one side of the support component. The thrust mechanism comprises a limiting block abutting against the supporting component and a driving assembly driving the limiting block to move in the sliding direction of the supporting component, an elastic component is arranged between the base and the supporting component, and the elastic component exerts force enabling the supporting component to abut against the limiting block. When the massage part is pressed by external force, the supporting part can overcome the resistance of the elastic part to slide so that the massage part can move towards the base. The utility model has the beneficial effects that the massage component can quickly return from the ejection state when the vehicle is collided, and the safety is good.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a safety collapse mechanism of a massager. Background Art

[0002] For passengers who drive or ride for a long time, it is easy to cause body fatigue and muscle stiffness due to maintaining the same posture for a long time. In order to solve the fatigue problem derived from long-term driving and riding, a car seat with massage function came into being.

[0003] At present, most of the massage mechanisms for the waist and back area on car seats use air bag massage, but the air bag massage has low strength and poor massage effect, and it is difficult to fully and deeply relax the user's body. In order to overcome the above defects, the applicant intends to develop a mechanical massage device, which is prepared to use mechanical movement to massage the occupant's back to achieve a better massage effect. However, when the mechanical massage device is working, it usually requires a massage component protruding outward to directly press against the occupant's back or waist. If the vehicle collides or other emergencies occur, the protruding massage component will cause great harm to the occupant's body, posing certain safety hazards.

[0004] Therefore, how to improve the safety of mechanical massage devices is a technical problem that needs to be solved urgently. Utility Model Content

[0005] In view of this, the utility model provides a safety collapse mechanism for a massager actuator, so that when a vehicle collides, the massage actuator can quickly return from an ejected state, thereby improving massage safety.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A massager safety collapse mechanism, the key of which is that it comprises a base, a swing arm is rotatably mounted on the base, a massage component is arranged at the far end of the swing arm, a support component that can slide relative to the base is arranged below the swing arm, a connecting rod is hinged on the support component, and the other end of the connecting rod is hinged at the middle of the swing arm. The support component slides and can drive the swing arm to rotate through the connecting rod, so that the massage component moves away from or close to the base;

[0008] A thrust mechanism is provided on one side of the support component, and the thrust mechanism includes a limit block abutting against the support component and a driving component driving the limit block to move along the sliding direction of the support component. An elastic component is provided between the base and the support component, and the elastic component applies a force to make the support component abut against the limit block; when the massage component is pressed by external force, the support component can overcome the resistance of the elastic component and slide to make the massage component move toward the base.

[0009] With the above structure, when the massage component is not in use, the massage component and the swing arm are stored in the backrest. When the user needs to use the massage component for massage, the driving component drives the limiting block to move away from the supporting component. During this process, since the elastic component applies a force to keep the supporting component continuously abutted against the limiting block, the supporting component can move synchronously with the limiting block. Thus, under the linkage action of the connecting rod, the swing arm can be driven to rotate outwards, so that the massage component at the distal end of the swing arm can be ejected towards the front side of the backrest A and act on the occupant's waist and back. After the massage is finished, the driving component drives the limiting block to move towards the direction close to the supporting component. At this time, the limiting block pushes the supporting component to slide against the resistance of the elastic component. Thus, under the linkage action of the connecting rod, the swing arm can be driven to rotate inwards, and the massage component can be retracted towards the base.

[0010] Preferably, the elastic component is a compression spring, the compression spring abuts between the supporting component and the end of the base. When the limiting block moves towards the direction close to the compression spring, it can force the compression spring to store energy through the supporting component. When the limiting block moves away from the supporting component, the elastic potential energy of the compression spring can be released, and the thrust generated by the compression spring can make the supporting component move synchronously with the limiting block.

[0011] Preferably, a slide bar extending along the height direction of the base is fixedly arranged on the base. The elastic component, the supporting component and the limiting block are sleeved on the slide bar in sequence along the height direction, and the supporting component and the limiting block can slide up and down relative to the slide bar.

[0012] Preferably, the slide bar is fixedly assembled on the base through a mounting seat. One end of the elastic component is supported on the mounting seat, and the other end is abutted against the supporting component.

[0013] Preferably, the driving component includes a motor fixedly arranged on the base and a lead screw driven to rotate by the motor. One end of the limiting block is threadedly sleeved on the lead screw.

[0014] Preferably, there are two groups of the swing arms and the connecting rods. The two groups of swing arms are symmetrically arranged along the width direction of the base. The number of the slide bars is two groups. Both ends of the supporting component and both ends of the limiting block are respectively slidably sleeved on the two groups of slide bars, and the lead screw is located between the two groups of slide bars.

[0015] Preferably, a relief groove is recessed downwards in the middle of the supporting component, and the relief groove is used to accommodate the lead screw.

[0016] Preferably, rollers in sliding contact with the base are arranged on the lower side of the supporting component.

[0017] Preferably, a synchronization shaft is rotatably connected to the support component, the synchronization shaft is arranged along the width direction of the base, both ends of the synchronization shaft are provided with adapters, and one end of the two groups of connecting rods are respectively hinged on the two adapters.

[0018] Preferably, the two groups of swing arms are rotatably mounted on the base via a rotating shaft at one end away from the massage component.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The massager safety collapse mechanism provided by the utility model is adopted. The driving assembly drives the limit block to move away from the support component. In this process, since the elastic component exerts a force that makes the support component continuously abut against the limit block, the support component can move synchronously with the limit block, so that the swing arm can be driven to rotate outward under the linkage action of the connecting rod, so that the massage component at the far end of the swing arm can be pushed out to the front side of the backrest and act on the waist and back of the occupant. The driving assembly drives the limit block to move in the direction close to the support component. At this time, the limit block pushes the support component to overcome the resistance of the elastic component to slide, so that the swing arm can be driven to rotate inward under the linkage action of the connecting rod, so that the massage component can be retracted toward the base. In the working state of the massage component, when the vehicle collides or other emergencies occur and the massage component is compressed by external force, the support component can overcome the resistance of the elastic component to slide, so that the massage component can be quickly retracted toward the base, effectively avoiding the massager from causing harm to the human body, and having the advantage of good safety. When the external force disappears, the elastic component is reset, which can drive the swing arm and the massage component to return to their positions automatically.

[0021] 2. The massager safety collapse mechanism provided by the utility model not only realizes that the massage component is stored inside the backrest when not in operation, avoiding that it protrudes from the backrest and causes discomfort to the user's waist, thus ensuring normal riding comfort, but also can smoothly unfold the massage component to a protruding state from the backrest through the synergistic effect of the elastic component and the thrust mechanism when massage is needed, thus realizing the massage function. In addition, in the event of a collision, the massage component can also be collapsed reversibly, thus improving the safety of massage. After collapse, the massage component is not damaged, thus saving costs and eliminating the trouble of replacing components. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the safety collapse mechanism of the massager when the massage component 2a is in the recovered state;

[0023] Figure 2 It is a schematic diagram of the structure of the safety collapse mechanism of the massager when the massage component 2a is in the working state;

[0024] Figure 3Another structural schematic diagram of the safety collapsible mechanism of the massager in the retracted state of the massage component 2a;

[0025] Figure 4 Another structural schematic diagram of the safety collapsible mechanism of the massager in the working state of the massage component 2a;

[0026] Figure 5 A cross-sectional view of the safety collapsible mechanism of the massager in the retracted state of the massage component 2a;

[0027] Figure 6 A cross-sectional view of the safety collapsible mechanism of the massager in the working state of the massage component 2a;

[0028] Figure 7 A schematic diagram showing the positional relationship of the support component 3, the thrust mechanism 5, and the elastic component 6;

[0029] Figure 8 A partial enlarged view showing the positional relationship between the support component 3 and the lead screw 52 (some components are hidden);

[0030] Figure 9 A structural schematic diagram of the support component 3;

[0031] Figure 10 A structural schematic diagram of the limit block 5a;

[0032] Figure 11 A reference diagram of the usage state of the safety collapsible mechanism of the massager integrated on the car seat backrest A;

[0033] Figure 12 A cross-sectional view of the rotating shaft 9. Specific embodiments

[0034] The present utility model will be further described below in conjunction with embodiments and the accompanying drawings.

[0035] As Figure 1 、 2As shown in FIGS. 5 and 6, a massage device safety collapsible mechanism includes a base 1, on which a swing arm 2 is rotatably mounted. A massage component 2a is provided at the distal end of the swing arm 2, and a support component 3 capable of sliding relative to the base 1 is disposed below the swing arm 2. A connecting rod 4 is provided between the support component 3 and the swing arm 2. One end of the connecting rod 4 is hinged to the support component 3, and the other end is hinged to the middle of the swing arm 2. When the support component 3 slides, it can drive the swing arm 2 to rotate via the connecting rod 4, so that the massage component 2a moves away from or towards the base 1. A thrust mechanism 5 is provided on one side of the support component 3. The thrust mechanism 5 includes a limit block 5a and a driving component 5b. Among them, the limit block 5a abuts against the support component 3, and the driving component 5b is used to drive the limit block 5a to move along the sliding direction of the support component 3. An elastic component 6 is provided between the base 1 and the support component 3, and the elastic component 6 applies a force to keep the support component 3 continuously abutted against the limit block 5a. When the massage component 2a is externally pressed, under the combined transmission of the swing arm 2 and the connecting rod 4, the support component 3 can overcome the resistance of the elastic component 6 and slide, so that the massage component 2a moves towards the base 1.

[0036] Reference Figure 11 , when the massage device safety collapsible mechanism is applied to an automotive seat, the base 1 is a plate-like structure, which is installed in the backrest A of the seat or directly is a part of the backrest frame. In this embodiment, the orientation description of the mechanism is based on the automotive seat, that is, the height direction of the base 1 corresponds to the height direction of the automotive seat, and the width direction of the base 1 corresponds to the width direction of the automotive seat.

[0037] Based on the above structural design, after the massage device safety collapsible mechanism is integrated into the seat backrest, refer Figure 3 and 5 As shown in FIGS. 11 and 12, when the massage component 2a is not in use, the massage component 2a and the swing arm 2 are retracted into the backrest, that is, the massage component 2a is in a position closer to the base 1. When the user needs to use the massage component 2a for massage, please refer to FIGS. 13 and 14. Figure 4 and 6 As shown in FIGS. 15 and 16, the driving component 5b drives the limit block 5a to move away from the support component 3. During this process, since the elastic component 6 applies a force to keep the support component 3 continuously abutted against the limit block 5a, the support component 3 can move synchronously with the limit block 5a. Thus, under the linkage of the connecting rod 4, the swing arm 2 can be driven to rotate outwards, so that the massage component 2a at the distal end of the swing arm 2 can be ejected towards the front side of the backrest A (refer to Figure 11) and acts on the occupant's waist and back. After the massage is finished, the drive component 5b drives the limit block 5a to move towards the support component 3. At this time, the limit block 5a pushes the support component 3 to slide against the resistance of the elastic component 6. Thus, under the linkage action of the connecting rod 4, the swing arm 2 can be driven to rotate inward, so that the massage component 2a retracts towards the base 1. Therefore, through such a structural design, not only can the massage component 2a be stored inside the backrest in the non-working state, avoiding protruding from the backrest and causing discomfort to the user's waist, ensuring normal riding comfort, but also when massage is needed, through the coordinated action of the elastic component 6 and the thrust mechanism 5, the massage component 2a can be smoothly unfolded to a state protruding from the backrest to realize the massage function.

[0038] In addition, based on such an assembly method, the massage component 2a also has a passive collapse function in the working state. The specific process is as follows: when the vehicle collides or other emergencies occur and the massage component 2a is externally pressed during the working state of the massage component 2a, the support component 3 can slide against the resistance of the elastic component 6. Under the linkage action of the connecting rod 4, it can drive the massage component 2a to quickly retract towards the base 1, effectively avoiding the massage device from causing harm to the human body and improving the safety of the massage. When the external force disappears, the elastic component 6 resets and can push the support component 3 to slide, and then drive the swing arm 2 and the massage component 2a to automatically return to the position in the working state. Designed in this way, it can protect the massage component 2a from damage, save costs and eliminate the trouble of replacing components, and has the advantage of good practicability.

[0039] Furthermore, the elastic component 6 can be a compression spring, a tension spring, a torsion spring, a leaf spring, a spring sheet, etc. In this embodiment, the elastic component 6 is a compression spring. Please refer to Figure 6 , the compression spring abuts between the support component 3 and the lower end of the base 1. The limit block 5a moves downward along the height direction of the base 1, that is, moves towards the compression spring, and can push the support component 3 to compress the compression spring downward to force the compression spring to store energy. When the support component 3 moves downward, it can drive the swing arm 2 to rotate towards the base 1 through the connecting rod 4 (refer to Figure 5 ). When the limit block 5a moves away from the support component 3, that is, moves upward, the elastic potential energy of the compression spring can be released. The thrust generated by the compression spring can make the support component 3 move synchronously with the limit block 5a, so that the swing arm 2 can be driven to rotate outward through the connecting rod 4. In this state, when the massage component 2a is externally pressed, the support component 3 can squeeze the compression spring downward, and then drive the swing arm 2 to quickly retract towards the base 1 through the connecting rod 4; when the external force disappears, the compression spring can release energy and push the support component 3 to move upward until the support component 3 abuts against the limit block 5a. At this time, the swing arm 2 returns to the working position and the massage component 2a is not damaged by the external force.

[0040] Refer to again Figure 4, a sliding rod 7 extending along the height direction of the base 1 is fixedly arranged on the base 1. The elastic component 6, the supporting component 3, and the limiting block 5a are sleeved on the sliding rod 7 in sequence from bottom to top, and the supporting component 3 and the limiting block 5a can slide up and down relative to the sliding rod 7. With such a design, the reliability of the installation and movement of the elastic component 6, the supporting component 3, and the limiting block 5a is ensured.

[0041] From Figure 7 It can be seen that the sliding rod 7 is fixedly assembled on the base 1 through the mounting seat 8. One end of the elastic component 6 is supported on the mounting seat 8, and the other end abuts against the supporting component 3. Such a consideration is for the convenience of installation.

[0042] As Figure 7 shown, the driving component 5b includes a motor 51 fixedly arranged on the base 1 and a lead screw 52 driven by the motor 51 to rotate. The lead screw 52 extends along the height direction of the base 1, and one end of the limiting block 5a is threadedly sleeved on the lead screw 52. When the motor 51 drives the lead screw 52 to rotate, the limiting block 5a can be driven to move up and down along the lead screw 52.

[0043] Furthermore, as Figure 1 and 3 shown, in order to be able to massage the meridians on both sides of the spine simultaneously, there are two sets of massage components 2a, and the corresponding swing arms 2 and connecting rods 4 are also provided with two sets. The two sets of swing arms 2 are symmetrically arranged along the width direction of the base 1. In this embodiment, the ends of the two sets of swing arms 2 far from the massage component 2a are rotatably mounted on the base 1 through a rotating shaft 9. The numbers of the sliding rod 7 and the elastic component 6 are both two sets, and they correspond to the two sets of swing arms 2 one by one. Both ends of the supporting component 3 and both ends of the limiting block 5a are respectively slidably sleeved on the two sets of sliding rods 7. The two connecting rods 4 are symmetrically arranged on the sides of the two sets of swing arms 2, and the lead screw 52 is arranged between the two sets of sliding rods 7. When the motor 51 drives the limiting block 5a to move downward, it can drive the supporting component 3 to simultaneously squeeze the two sets of elastic components 6, and then can simultaneously drive the two sets of swing arms 2 to retract inward, ensuring the synchronism of the movement of the two sets of swing arms 2. At the same time, such a layout method can improve the compactness of the overall structure, enabling this mechanism to be better integrated and installed on the backrest of an automobile seat.

[0044] Combined with Figure 7 and Figure 10 shown, both ends of the limiting block 5a have first connection holes 5a1, and the two first connection holes 5a1 are respectively slidably sleeved on the two sets of sliding rods 7. A second connection hole 5a2 is provided in the middle of the limiting block 5a, and the second connection hole 5a2 is threadedly sleeved on the lead screw 52.

[0045] Please refer to Figure 8 and 9, both ends of the support member 3 are provided with socket parts 3c that are respectively slidably sleeved on two groups of slide rods 7, and one end of the compression spring abuts against the corresponding socket part 3c. The middle part of the support member 3 has an avoidance groove 3b that is recessed downward, and the lead screw 52 is located above the avoidance groove 3b, further improving the structural compactness.

[0046] Refer again Figure 8 , a roller 3a that is in sliding contact with the base 1 is provided on the lower side of the support member 3. The roller 3a increases the smoothness of the support member 3 sliding on the base 1. On the other hand, in the event of a collision accident, the support member 3 can also smoothly squeeze the compression spring downward to ensure that the swing arm 2 can be quickly retracted.

[0047] As Figure 2 and Figure 4 shown, a synchronous shaft 3c is rotatably connected to the support member 3. The synchronous shaft 3c is arranged along the width direction of the base 1. Transfer parts 3d are provided at both ends of the synchronous shaft 3c. One ends of two groups of connecting rods 4 are respectively hinged to the two transfer parts 3d, and the other ends are respectively hinged to the middle parts of the corresponding swing arms 2. Such a design facilitates installation.

[0048] In actual application, the massage part 2a can be an independent massage device or a massage execution element driven by the swing arm 2. Refer to Figure 1 , 11 and 12. Taking the massage part 2a as a massage execution element as an example, two groups of annular grooves 91 are symmetrically arranged along the rotating shaft 9. One ends of the two swing arms 2 away from the massage part 2a are respectively rotatably sleeved on the two annular grooves 91. The side walls on both sides of each annular groove 91 are inclined relative to the center line of the rotating shaft 9. A driving mechanism for driving the rotating shaft 9 to rotate is also provided on the base 1. When using the massage function, the driving assembly 5b drives the limit block 5a to move away from the support member 3. The support member 3 can move synchronously with the limit block 5a, so that under the linkage action of the connecting rod 4, the two swing arms 2 can be driven to rotate outward, so that the massage part 2a at the distal end of the swing arm 2 can be pushed out to the front side of the backrest A and act on the user's back. Subsequently, the driving mechanism drives the rotating shaft 9 to rotate. Under the transmission of the inclined side wall of the annular groove 91 and the constraint of the connecting rod 4, the swing arm 2 can be forced to swing reciprocally along the axial direction of the rotating shaft 9, so that the massage part 2a at the distal end forms a reciprocating swinging kneading massage on the user's back.

[0049] Finally, it should be noted that the above description is only the preferred embodiment of the present invention. Those of ordinary skill in the art, under the inspiration of the present invention, without violating the purpose and claims of the present invention, can make various similar representations. Such transformations all fall within the protection scope of the present invention.

Claims

1. A safety collapse mechanism for a massager, characterized in that It includes a base (1), on which a swing arm (2) is rotatably mounted. A massage component (2a) is provided at the distal end of the swing arm (2). Below the swing arm (2), a support component (3) capable of sliding relative to the base (1) is provided. A connecting rod (4) is hinged on the support component (3), and the other end of the connecting rod (4) is hinged in the middle of the swing arm (2). When the support component (3) slides, it can drive the swing arm (2) to rotate through the connecting rod (4), so that the massage component (2a) moves away from or towards the base (1). A thrust stopping mechanism (5) is provided on one side of the support component (3). The thrust stopping mechanism (5) includes a limiting block (5a) in contact with the support component (3) and a driving component (5b) for driving the limiting block (5a) to move along the sliding direction of the support component (3). An elastic component (6) is provided between the base (1) and the support component (3), and the elastic component (6) applies a force to make the support component (3) abut against the limiting block (5a). When the massage component (2a) is pressed by an external force, the support component (3) can slide against the resistance of the elastic component (6), so that the massage component (2a) moves towards the base (1).

2. The massage device safety collapse mechanism according to claim 1, characterized in that: The elastic component (6) is a compression spring, which abuts between the support component (3) and the end of the base (1). When the limiting block (5a) moves towards the direction close to the compression spring, it can force the compression spring to store energy through the support component (3). When the limiting block (5a) moves away from the support component (3), the elastic potential energy of the compression spring can be released, and the thrust generated by the compression spring can make the support component (3) move synchronously with the limiting block (5a).

3. The massage device safety collapse mechanism according to claim 2, characterized in that: A sliding rod (7) extending along the height direction of the base (1) is fixedly provided on the base (1). The elastic component (6), the support component (3) and the limiting block (5a) are sleeved on the sliding rod (7) in sequence along the height direction, and the support component (3) and the limiting block (5a) can slide up and down relative to the sliding rod (7).

4. The massage device safety collapse mechanism according to claim 3, characterized in that: The sliding rod (7) is fixedly assembled on the base (1) through a mounting seat (8). One end of the elastic component (6) is supported on the mounting seat (8), and the other end abuts against the support component (3).

5. The massage device safety collapse mechanism according to claim 3, wherein: The driving component (5b) includes a motor (51) fixedly provided on the base (1) and a lead screw (52) driven by the motor (51) to rotate. One end of the limiting block (5a) is threadedly sleeved on the lead screw (52).

6. The massage device safety collapse mechanism according to claim 5, wherein: There are two groups of the swing arm (2) and the connecting rod (4). The two groups of the swing arm (2) are symmetrically arranged along the width direction of the base (1). The number of the sliding rods (7) is two groups. Both ends of the support component (3) and both ends of the limiting block (5a) are respectively slidably sleeved on the two groups of sliding rods (7), and the lead screw (52) is located between the two groups of sliding rods (7).

7. The massage device safety collapse mechanism according to claim 6, characterized in that: A downwardly concave avoidance groove (3b) is provided in the middle of the support component (3), and the avoidance groove (3b) is used to accommodate the lead screw (52).

8. The massage device safety collapse mechanism according to claim 6, characterized in that: Rollers (3a) in sliding contact with the base (1) are provided on the lower side of the support component (3).

9. The massage device safety collapse mechanism according to claim 6, characterized in that: A synchronous shaft (3c) is rotatably connected to the support member (3). The synchronous shaft (3c) is arranged along the width direction of the base (1). Transfer portions (3d) are provided at both ends of the synchronous shaft (3c). One ends of two groups of the connecting rods (4) are respectively hinged to the two transfer portions (3d).

10. The massage device safety collapse mechanism according to claim 6, characterized in that: One ends of two groups of the swing arms (2) far away from the massage member (2a) are rotatably mounted on the base (1) through a rotating shaft (9).

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