Track-controllable cam reciprocating type rhythm movement and rhythm furniture

Abstract

The utility model relates to the related technical field of furniture, and provides a track controllable cam reciprocating type rhythm movement and rhythm furniture, the rhythm movement comprises a fixed underframe, a rhythm support and a driving mechanism, the rhythm support is provided with a transmission assembly, the driving mechanism comprises a driving unit and a driving cam, the output end of the driving unit is in transmission connection with the driving cam, and the driving cam is connected with the fixed underframe. The peripheral wall of the driving cam is in transmission fit with the transmission assembly so as to drive the rhythm support to move relative to the fixed bottom frame. Wherein the cross section of the driving cam is oval, and the motion trail of the peripheral wall of the driving cam matched with the transmission assembly is changed, so that a user can control the rotation angle, the rotation speed and the rotation direction of the driving cam, control the rhythm trail of the rhythm support and adjust the stroke of the rhythm support according to needs; the rhythm support has various rhythm body feelings, the structure is simple, track controllability is achieved, and the experience feeling of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture, in particular to a track-controllable cam reciprocating rhythm movement mechanism core and rhythm furniture. Background Art

[0002] At present, rhythm movement mechanism cores are installed at the bottoms of some furniture such as massage chairs and massage sofa beds. The rhythm movement mechanism core can enable the furniture to have the function of reciprocating back and forth, so as to perform rhythm massage on users.

[0003] In related technologies, the rhythm movement mechanism core includes a bottom frame and a rhythm support. The rhythm is realized by the relative movement of the rhythm support with respect to the bottom frame. However, the drive mechanism for driving the movement of the rhythm support in the above rhythm movement mechanism core has a complex structure and a single drive stroke trajectory, resulting in poor user experience. Summary of the Utility Model

[0004] The utility model provides a track-controllable cam reciprocating rhythm movement mechanism core to solve the problems that the drive mechanism for driving the movement of the rhythm support in related technologies has a complex structure, a single drive stroke trajectory, and poor user experience.

[0005] The utility model provides a track-controllable cam reciprocating rhythm movement mechanism core, including:

[0006] A fixed bottom frame;

[0007] A rhythm support, which is movably arranged on the fixed bottom frame in the front-back direction, and a transmission component is arranged on the rhythm support;

[0008] A drive mechanism, which includes a drive unit and a drive cam. The output end of the drive unit is in transmission connection with the drive cam to drive the drive cam to rotate. The outer peripheral wall of the drive cam is in transmission cooperation with the transmission component to drive the rhythm support to move relative to the fixed bottom frame;

[0009] Wherein, the cross-sectional shape of the drive cam is oval.

[0010] According to a track-controllable cam reciprocating rhythm movement mechanism core provided by the utility model, the transmission component is rotatably connected to the rhythm support, and the transmission component is in abutting cooperation with the drive cam.

[0011] According to a track-controllable cam reciprocating rhythm movement mechanism core provided by the utility model, a guiding and positioning groove is arranged on the transmission component, and the guiding and positioning groove is arranged around the rotation center line of the transmission component;

[0012] Wherein, the guiding and positioning groove is used for accommodating and positioning the outer peripheral wall of the drive cam.

[0013] According to a reciprocating movement mechanism core of a cam with controllable trajectory provided by the present utility model, the transmission assembly includes:

[0014] A mounting shaft rotatably connected to the movement support;

[0015] A transmission wheel provided on the mounting shaft, and a guiding and positioning groove is formed by concaving the outer peripheral wall of the transmission wheel.

[0016] According to a reciprocating movement mechanism core of a cam with controllable trajectory provided by the present utility model, the movement support is provided with an avoidance channel, and at least part of the structure of the transmission wheel is located in the avoidance channel.

[0017] According to a reciprocating movement mechanism core of a cam with controllable trajectory provided by the present utility model, an automatic reset structure for driving the movement support to reset is further provided between the fixed bottom frame and the movement support;

[0018] Wherein, the reset direction of the automatic reset structure for driving the movement support to reset is opposite to the movement direction of the driving mechanism for driving the movement support to move.

[0019] According to a reciprocating movement mechanism core of a cam with controllable trajectory provided by the present utility model, the automatic reset structure includes an automatic reset spring, one end of the automatic reset spring is connected to the fixed bottom frame, and the other relatively end of the automatic reset spring is connected to the movement support.

[0020] According to a reciprocating movement mechanism core of a cam with controllable trajectory provided by the present utility model, there are multiple groups of the automatic reset springs, and the multiple groups of automatic reset springs are arranged at intervals along the left-right direction of the movement support.

[0021] According to a reciprocating movement mechanism core of a cam with controllable trajectory provided by the present utility model, a guiding mechanism for connecting the fixed bottom frame and the movement support and guiding their relative movement is provided between the fixed bottom frame and the movement support.

[0022] The present utility model further provides a rhythm furniture, including the above-mentioned reciprocating movement mechanism core of a cam with controllable trajectory.

[0023] The reciprocating movement mechanism of a cam with controllable trajectory provided by the present utility model, when the movement mechanism moves, the driving unit drives the driving cam to rotate, and the driving cam cooperates with the transmission assembly to drive the movement bracket to move. Since the cross-sectional shape of the above-mentioned driving cam is elliptical, the movement trajectory of the outer peripheral wall of the driving cam cooperating with the transmission assembly changes. Therefore, the user can control the rotation angle, rotation speed and rotation direction of the driving cam as needed, control the movement trajectory of the movement bracket, and adjust the stroke size of the movement bracket, so that the movement bracket has a variety of movement sensations, such as a gentle movement sensation with a small change in movement amplitude and a movement sensation with a large change in movement amplitude. The structure is simple, the trajectory is controllable, and the user experience is improved. Brief Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the present utility model or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a schematic structural diagram of the movement mechanism provided by the present utility model.

[0026] Figure 2 It is a schematic structural diagram of the cooperation between the driving mechanism and the transmission assembly provided by the present utility model.

[0027] Figure 3 It is a schematic structural diagram of the cooperation between the driving cam and the transmission wheel provided by the present utility model.

[0028] Reference Numerals:

[0029] 100, fixed chassis; 200, movement bracket; 210, avoidance channel; 300, transmission assembly; 310, mounting shaft; 320, transmission wheel; 321, guiding and positioning groove; 400, driving mechanism; 410, driving unit; 411, driving motor; 412, transmission shaft; 413, first pulley; 414, second pulley; 415, transmission belt; 420, driving cam;

[0030] 500, automatic reset structure; 510, automatic reset spring; 600, guiding mechanism. Detailed Embodiments

[0031] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the present utility model will be clearly and completely described below with reference to the accompanying drawings in the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without any creative work belong to the scope of protection of the present utility model.

[0032] The following will describe Figures 1 - 3 the trajectory-controllable cam reciprocating rhythm movement mechanism and rhythm furniture of the present utility model. The rhythm furniture includes the above-mentioned movement mechanism and a bearing body. By the reciprocating forward and backward movement of the movement mechanism, the bearing body can be driven to move relatively rhythmically. It can be understood that in the embodiments of the present utility model, the above-mentioned rhythm furniture can be a rhythm chair, a rhythm bed, etc.

[0033] It can be understood that with reference to Figures 1 to 3 , the present utility model provides a trajectory-controllable cam reciprocating rhythm movement mechanism, which includes a fixed chassis 100, a rhythm support 200 and a driving mechanism 400. The rhythm support 200 is movably arranged on the fixed chassis 100 in the front and rear directions. A transmission assembly 300 is arranged on the rhythm support 200. The driving mechanism 400 includes a driving unit 410 and a driving cam 420. The output end of the driving unit 410 is in transmission connection with the driving cam 420 to drive the driving cam 420 to rotate. The outer peripheral wall of the driving cam 420 is in transmission cooperation with the transmission assembly 300 to drive the rhythm support 200 to move relative to the fixed chassis 100; wherein, the cross-sectional shape of the driving cam 420 is an ellipse.

[0034] In the trajectory-controllable cam reciprocating rhythm movement mechanism provided by the present utility model, when the movement mechanism moves, the driving unit 410 drives the driving cam 420 to rotate, and the driving cam 420 cooperates with the transmission assembly 300 to drive the rhythm support 200 to move. Since the cross-sectional shape of the above-mentioned driving cam 420 is an ellipse, the movement trajectory of the outer peripheral wall of the driving cam 420 cooperating with the transmission assembly 300 changes. Therefore, the user can control the rotation angle, rotation speed and rotation direction of the driving cam 420 as needed, control the rhythm trajectory of the rhythm support 200, and adjust the stroke size of the rhythm support 200, so that the rhythm support 200 has a variety of rhythm sensations, such as a gentle rhythm sensation with a small change in rhythm amplitude and a rhythm sensation with a large change in rhythm amplitude. The structure is simple, the trajectory can be controlled, and the user experience is improved.

[0035] It should be noted that in the embodiment of the present utility model, by controlling the rotation angle of the driving cam 420, the cooperation locus between the transmission assembly 300 and the outer peripheral wall of the driving cam 420 can be controlled, so as to adjust the rhythm stroke; by setting different rotational speed changes of the driving cam 420 within the same distance, the size change or large change of the movement locus of the outer peripheral wall of the driving cam 420 cooperating with the transmission assembly 300, so that the transmission assembly 300 is transmitted to the rhythm bracket 200, making the rhythm bracket 200 have a variety of rhythm sensations, such as a gentle rhythm sensation with a small change in the rhythm amplitude and a rhythm sensation with a large change in the rhythm amplitude.

[0036] It should also be noted that with reference to Figure 1 , in the embodiment of the present utility model, the above-mentioned fixed chassis 100 supports the rhythm bracket 200. Of course, in some embodiments, the rhythm bracket 200 can also be hung above the fixed chassis 100.

[0037] It can be understood that with reference to Figures 1 to 3 , in the embodiment of the present utility model, the transmission assembly 300 is rotatably connected to the rhythm bracket 200, and the transmission assembly 300 is in abutting cooperation with the driving cam 420. With the above arrangement, when the driving cam 420 rotates, it can push the transmission assembly 300 to rotate. Since the driving cam 420 is an elliptical structure, the rhythm bracket 200 is thus pushed to move. Therefore, the transmission assembly 300, as a bridge connecting the driving cam 420 and the rhythm bracket 200, can effectively transmit power and movement to ensure that the movement of the driving cam 420 is accurately transmitted to the rhythm bracket 200, thereby controlling the movement locus of the rhythm bracket 200; the transmission assembly 300 is rotatably connected to the rhythm bracket 200, so that the transmission assembly 300 can rotate to reduce the transmission stress between the driving cam 420 and the transmission assembly 300, which can reduce the friction and wear between components and extend the service life.

[0038] Of course, in some embodiments, the above-mentioned transmission assembly 300 can also be fixedly connected to the rhythm bracket 200, which is not limited herein.

[0039] Specifically, with reference to Figure 1 and Figure 2, in the embodiment of the present utility model, a guiding and positioning groove 321 is provided on the transmission assembly 300, and the guiding and positioning groove 321 is arranged around the rotation center line of the transmission assembly 300; wherein, the guiding and positioning groove 321 is used to accommodate and position the outer peripheral wall of the driving cam 420. The design of the guiding and positioning groove 321 can ensure that the outer peripheral wall of the driving cam 420 can be accurately accommodated and positioned on the transmission assembly 300, which helps to ensure that the driving cam 420 maintains good cooperation and alignment with the transmission assembly 300 during rotation, improves the transmission accuracy and transmission efficiency, helps to reduce vibrations and unstable factors during the movement process, and at the same time extends the service life of mechanical components and simplifies the installation and maintenance process.

[0040] It can be understood that, with reference to Figures 1 to 3 , in the embodiment of the present utility model, the transmission assembly 300 includes a mounting shaft 310 and a transmission wheel 320. The mounting shaft 310 is rotatably connected to the rhythm bracket 200, the transmission wheel 320 is arranged on the mounting shaft 310, and a guiding and positioning groove 321 is formed by concave-concaving the outer peripheral wall of the transmission wheel 320.

[0041] Adopting the above structure, the connection between the mounting shaft 310 and the rhythm bracket 200 and the combination of the transmission wheel 320 and the mounting shaft 310 can provide a stable transmission connection, ensure the normal operation of the mechanical transmission structure, and the connection design between the mounting shaft 310 and the transmission wheel 320 makes the maintenance and installation more convenient, which helps to reduce the maintenance cost and improve the work efficiency.

[0042] It should be noted that, with reference to Figure 1 and Figure 2 , in the embodiment of the present utility model, the above-mentioned transmission wheel 320 can be fixedly sleeved on the outer wall of the mounting shaft 310, or the transmission wheel 320 can be rotatably sleeved on the outer wall of the mounting shaft 310. Of course, both ends of the above-mentioned mounting shaft 310 are respectively rotatably installed on the rhythm bracket 200 through bearing seats, and the structure is simple, and the transmission is smooth and stable.

[0043] Certainly, in some embodiments, the transmission assembly 300 may further include a fixed shaft and a rotating wheel. The fixed shaft is fixedly installed on the rhythm bracket 200, and the rotating wheel is rotatably installed on the outer wall of the fixed shaft through a bearing, which is not limited herein.

[0044] Specifically, with reference to Figure 1, in the embodiment of the present utility model, the rhythm support 200 is provided with an avoidance channel 210, and at least a part of the structure of the transmission wheel 320 is located in the avoidance channel 210. Through the above structure, the existence of the avoidance channel 210 allows a part of the structure of the transmission wheel 320 to be located therein, which helps to optimize the space utilization; by placing a part of the transmission wheel 320 in the avoidance channel 210, the transmission wheel 320 can move smoothly without being hindered by unnecessary friction, reducing energy loss, improving transmission efficiency, making maintenance more convenient, reducing the complexity of disassembly and installation, reducing maintenance costs, and improving the stability and reliability of the transmission.

[0045] Of course, in some embodiments, a baffle can also be provided on the rhythm support 200. By setting the baffle, the rotation of the transmission wheel 320 is prevented from being affected.

[0046] It can be understood that with reference to Figure 1 , in the embodiment of the present utility model, an automatic reset structure 500 for driving the rhythm support 200 to reset is further provided between the fixed chassis 100 and the rhythm support 200; wherein, the reset direction of the automatic reset structure 500 for driving the rhythm support 200 to reset is opposite to the movement direction of the driving mechanism 400 for driving the rhythm support 200 to move. It should be noted that in this embodiment, since the driving cam 420 of the driving mechanism 400 drives the rhythm support 200 to move in the first direction when rotating forward, the first direction can be understood as the forward direction, and the rhythm support 200 cannot be driven to move in the second direction opposite to the first direction, and the second direction can be understood as the backward direction. Therefore, by providing the automatic reset structure 500, when the driving cam 420 of the driving mechanism 400 rotates backward, the automatic reset structure 500 can change accordingly, so that the outer peripheral wall of the driving cam 420 can always be in contact and cooperate with the transmission wheel 320, and the automatic reset structure 500 drives the rhythm support 200 to move in the second direction, thereby realizing the reciprocating movement of the rhythm support 200 relative to the fixed chassis 100, with a simple structure and reliable movement.

[0047] Of course, in some embodiments, a linkage rod can be installed between the driving cam 420 and the transmission wheel 320 of the transmission assembly 300. The linkage rod can adapt to the forward and reverse rotations of the driving cam 420 to ensure that the transmission wheel 320 of the transmission assembly 300 is always in contact with the outer peripheral wall of the driving cam 420 and drives the rhythm support 200 to reciprocate back and forth relative to the fixed chassis 100.

[0048] Specifically, with reference to Figure 1In the embodiment of the utility model, the automatic reset structure 500 includes an automatic reset spring 510, one end of which is connected to the fixed base frame 100, and the other end of the automatic reset spring 510 is connected to the rhythmic bracket 200. With the above structure, when the driving cam 420 rotates forward and cooperates with the transmission wheel 320 to drive the rhythmic bracket 200 to move in the first direction, the automatic reset spring 510 is compressed; when the driving cam 420 rotates reversely, the automatic reset spring 510 elastically recovers to stretch to drive the rhythmic bracket 200 to move in the second direction. The structure is simple, which can simplify the operation process, reduce human intervention, and improve the automation and convenience of the system.

[0049] Specifically, refer to Figure 1 In the embodiment of the utility model, the automatic return spring 510 is in three groups, and the three groups of automatic return springs 510 are arranged at intervals along the left and right directions of the rhythmic bracket 200 to enhance the return force. The multiple groups of automatic return springs 510 arranged at intervals along the left and right directions can help to balance the distribution of force, making the return process more stable and stable, and can reduce the load of a single automatic return spring 510, extend the service life of the automatic return spring 510, and further improve the automatic return reliability of the rhythmic bracket 200. Of course, in other embodiments, the automatic return spring 510 can also be one group, two groups, etc., which is not limited here.

[0050] Of course, in some embodiments, the automatic reset structure 500 may also include an elastic plate, or the automatic reset structure 500 is configured as an electric push rod, and the push rod of the electric push rod is moved and retracted to avoid the driving mechanism 400 driving the rhythmic bracket 200 to move and reset.

[0051] It should be noted that, in the embodiment of the present utility model, the automatic return spring 510 can be fixedly installed on the rhythmic bracket 200 and the fixed base frame 100 by means of bolts, welding, etc., which is not limited here.

[0052] It is understandable that, referring to Figure 1 and Figure 2, in the embodiment of the present utility model, the driving unit 410 is a belt pulley transmission structure. Of course, it can also be a gear transmission structure, etc. For example, in this embodiment, the driving unit 410 is a belt pulley transmission structure. The driving unit 410 includes a driving motor 411, a transmission shaft 412, a first belt pulley 413, a second belt pulley 414, and a transmission belt 415. The driving motor 411 is installed on the fixed chassis 100. The output shaft of the driving motor 411 is fixedly connected to the first belt pulley 413. The transmission shaft 412 is rotatably installed on the fixed chassis 100. The second belt pulley 414 is installed at one end of the transmission shaft 412. The driving cam 420 is installed at the other end of the transmission shaft 412. The transmission belt 415 is wound around the first belt pulley 413 and the second belt pulley 414. The driving motor 411 drives the first belt pulley 413 to rotate, drives the second belt pulley 414 to rotate through the transmission belt 415, and then drives the transmission shaft 412 and the driving cam 420 to rotate. The structure is simple and the transmission is stable.

[0053] It can be understood that, referring to Figure 1 , in the embodiment of the present utility model, a guiding mechanism 600 for connecting the fixed chassis 100 and the rhythm bracket 200 and guiding their relative movement is provided between the fixed chassis 100 and the rhythm bracket 200 to improve the stability during reciprocating movement.

[0054] Specifically, referring to Figure 1 , in the embodiment of the present utility model, the guiding mechanism 600 includes a first guiding seat, a second guiding seat, and a plurality of spheres. The first guiding seat is connected to the fixed chassis 100. The second guiding seat is connected to the rhythm bracket 200. The first guiding seat and the second guiding seat are slidably connected, and an accommodating groove is formed between them. The plurality of spheres are installed in the accommodating groove. With the above structure, when the rhythm bracket 200 reciprocates back and forth relative to the fixed chassis 100, guiding is achieved through the relative sliding of the first guiding seat and the second guiding seat, and spheres are provided, which is beneficial to the sliding resistance of the rhythm bracket 200 relative to the fixed chassis 100, stable and reliable, and the movement is smooth.

[0055] It should be noted that, referring to Figure 1 , in this embodiment, there are four groups of the guiding mechanism 600. The four groups of guiding mechanism 600 are spaced apart and distributed at the bottom of the fixed chassis 100 and the rhythm bracket 200 to provide the stability of reciprocating back and forth movement. Of course, in some embodiments, the guiding mechanism 600 can also be one group, two groups, etc., which are not limited herein.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A reciprocating movement movement mechanism of a cam with controllable trajectory, characterized in that, Comprising: A fixed chassis (100); A rhythmic support (200), which is movably arranged on the fixed chassis (100) in the front - rear direction, and a transmission component (300) is arranged on the rhythmic support (200); A driving mechanism (400), the driving mechanism (400) includes a driving unit (410) and a driving cam (420), the output end of the driving unit (410) is in transmission connection with the driving cam (420) to drive the driving cam (420) to rotate, and the outer peripheral wall of the driving cam (420) is in transmission cooperation with the transmission component (300) to drive the rhythmic support (200) to move relative to the fixed chassis (100); Wherein, the cross - sectional shape of the driving cam (420) is oval.

2. The reciprocating movement mechanism of the trajectory-controllable cam according to claim 1, wherein, The transmission component (300) is rotatably connected to the rhythmic support (200), and the transmission component (300) is in abutting cooperation with the driving cam (420).

3. The reciprocating movement mechanism of a cam with controllable locus according to claim 2, characterized in that, The transmission component (300) is provided with a guiding and positioning groove (321), and the guiding and positioning groove (321) is arranged around the rotation center line of the transmission component (300); Wherein, the guiding and positioning groove (321) is used for accommodating and positioning the outer peripheral wall of the driving cam (420).

4. The reciprocating movement mechanism of the trajectory-controllable cam according to claim 3, characterized in that, The transmission component (300) includes: A mounting shaft (310), which is rotatably connected to the rhythmic support (200); A transmission wheel (320), the transmission wheel (320) is arranged on the mounting shaft (310), and the guiding and positioning groove (321) is formed by concave - inward of the outer peripheral wall of the transmission wheel (320).

5. The reciprocating movement mechanism of a cam with controllable locus according to claim 4, characterized in that, The rhythmic support (200) is provided with an avoidance channel (210), and at least part of the structure of the transmission wheel (320) is located in the avoidance channel (210).

6. The reciprocating movement mechanism of a cam with controllable locus according to any one of claims 1 to 5, characterized in that, An automatic reset structure (500) is further arranged between the fixed chassis (100) and the rhythmic support (200) for driving the rhythmic support (200) to reset; Wherein, the reset direction of the automatic reset structure (500) for driving the rhythmic support (200) to reset is opposite to the movement direction of the driving mechanism (400) for driving the rhythmic support (200) to move.

7. The reciprocating movement mechanism of the trajectory-controllable cam according to claim 6, characterized in that, The automatic reset structure (500) includes an automatic reset spring (510), one end of the automatic reset spring (510) is connected to the fixed chassis (100), and the opposite end of the automatic reset spring (510) is connected to the rhythmic support (200).

8. The reciprocating movement mechanism of the trajectory-controllable cam according to claim 7, characterized in that, The automatic reset springs (510) are in multiple groups, and the multiple groups of automatic reset springs (510) are arranged at intervals in the left - right direction of the rhythmic support (200).

9. The reciprocating movement mechanism of a cam with controllable trajectory according to claim 1, characterized in that, A guiding mechanism (600) is arranged between the fixed chassis (100) and the rhythmic support (200) for connecting the two and guiding their relative movement.

10. A rhythm furniture, characterized in that, Including the track - controllable cam reciprocating type rhythmic movement core according to any one of claims 1 to 9.

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