Anti-fracture rhythm underframe and rhythm furniture

Abstract

The utility model relates to the relevant technical field of furniture, and provides an anti-fracture rhythm underframe and rhythm furniture, the rhythm underframe comprises a fixing frame, a rhythm frame, a support connecting mechanism and a driving motor, the rhythm frame is supported above the fixing frame by the support connecting mechanism, the support connecting mechanism comprises a connecting piece, and the connecting piece is connected with the driving motor. The two ends of the connecting piece are rotationally connected with the fixing frame and the rhythm frame respectively, the power output end of the driving motor is in transmission connection with the rhythm frame, and the driving motor drives the rhythm frame to reciprocate back and forth relative to the fixing frame. Due to the fact that the rhythm frame is supported above the fixing frame through the supporting and connecting mechanism, the connecting piece is rotationally connected with the rhythm frame and the fixing frame, and the driving motor of the driving mechanism is in transmission connection with the rhythm frame, the supporting and connecting mechanism is not prone to breakage, connection between the rhythm frame and the fixing frame is more stable, and safety is good.

Description

Technical Field

[0001] The utility model relates to the technical field related to furniture, and in particular to an anti-fracture rhythmic chassis and rhythmic furniture. Background Art

[0002] Currently, some massage chairs, massage sofa beds and other furniture are equipped with a base frame structure at the bottom, which enables the furniture to move back and forth, thereby performing a rhythmic massage on the user.

[0003] In related art, the underframe structure of furniture consists of two frames, which achieve rhythmic movement through relative movement. An elastic connector is installed between the two frames, connecting their ends to provide guidance during forward and backward movement. During assembly, one end of the connector is fixed to one frame, and the other end to the other frame. The ends of the connector remain fixed relative to the two frames, and the relative movement of the two frames is achieved through the elastic deformation of the connector itself.

[0004] When the furniture is in operation, the side planes on the dynamic and static frames that cooperate with the connecting parts should be parallel to each other. However, due to the long-term use of the furniture, the side planes on the dynamic and static frames that cooperate with the connecting parts may tilt, and the dynamic and static frames will exert mechanical stress on the connecting parts. Long-term mechanical stress may cause fatigue fracture of the connecting parts, resulting in a short service life of the furniture.

[0005] In addition, the dynamic and static frames are connected by connecting parts in a suspended manner. The connecting parts are subjected to tension for a long time, which poses certain safety hazards. Utility Model Content

[0006] The utility model provides an anti-fracture rhythmic chassis, which is used to solve the technical problems in the related art that connecting parts are prone to fatigue fracture, have a short service life and are unsafe.

[0007] The utility model provides an anti-fracture rhythmic chassis, comprising:

[0008] Fixed frame;

[0009] Rhythm rack;

[0010] A support and connection mechanism, wherein the rhythm frame is supported above the fixed frame by the support and connection mechanism, the support and connection mechanism includes a connecting member, and the connecting member includes a first end and a second end opposite to each other, the first end is rotatably connected to the fixed frame, and the second end is rotatably connected to the rhythm frame;

[0011] The driving mechanism includes a driving motor, wherein the power output end of the driving motor is transmission-connected to the rhythm frame, and the driving motor drives the rhythm frame to reciprocate back and forth relative to the fixed frame. In the process of the rhythm frame being driven by the driving motor to reciprocate back and forth relative to the fixed frame, the first end of the connecting member can rotate relative to the fixed frame, and the second end can rotate relative to the rhythm frame.

[0012] According to an anti-fracture rhythmic chassis provided by the utility model, the supporting connection mechanism also includes two groups of bearing units, the first end of the connecting member is rotatably mounted on the fixed frame through one group of the bearing units, and the opposite second end of the connecting member is rotatably mounted on the rhythmic frame through the other group of the bearing units to suspend the rhythmic frame on the fixed frame.

[0013] According to an anti-fracture rhythmic chassis provided by the utility model, mounting structures are provided between the fixed frame and the corresponding bearing units of the supporting and connecting mechanism, and between the rhythmic frame and another group of corresponding bearing units of the supporting and connecting mechanism, and each mounting structure and the corresponding bearing unit are configured to be relatively rotatable.

[0014] According to the anti-fracture rhythmic chassis provided by the utility model, each of the mounting structures includes a bearing seat, the fixing frame is connected to the bearing seat corresponding to the mounting structure, the rhythmic frame is connected to the bearing seat corresponding to another mounting structure, and each of the bearing seats is provided with a first mounting channel;

[0015] Each group of bearing units includes a first bearing member and a first fixing member. The first bearing member is arranged in the first installation channel. The first fixing member is rotatably inserted into the first bearing member. The first fixing member is fixedly connected to the end of the connecting member.

[0016] According to the anti-fracture rhythmic chassis provided by the present invention, the first fixing member includes:

[0017] A fixed body, wherein the fixed body is provided with a positioning recess;

[0018] A positioning post is provided at the positioning recess, and an end portion of the connecting member is sandwiched between the bottom wall of the positioning recess and the side wall of the positioning post;

[0019] Wherein, the connecting member is an elastic plate, and the positioning column, the elastic plate and the fixed body are fixedly connected via a connecting structure.

[0020] According to an anti-fracture rhythmic chassis provided by the utility model, the connection structure includes a connecting bolt, a metal washer and a flexible rubber ring, the rod of the connecting bolt passes through the positioning column, the connecting piece and the fixed body in sequence, the rod of the connecting bolt is screwed to the fixed body, the metal washer and the flexible rubber ring are both sleeved on the connecting bolt, and the metal washer is located at the head of the connecting bolt and the diameter of the flexible rubber ring, and the flexible rubber ring is located between the metal washer and the positioning column.

[0021] According to the anti-fracture rhythmic chassis provided by the utility model, each of the mounting structures includes two mounting shafts, the fixing frame is connected to the two mounting shafts corresponding to the mounting structure, and the rhythmic frame is connected to the two mounting shafts corresponding to the other mounting structure;

[0022] Each group of the bearing units includes a second fixing member and two second bearing members, the second fixing members are provided with second mounting channels at opposite ends, the two second bearing members correspond to the two second mounting channels one by one and are plug-fitted together, and the second fixing member is fixedly connected to the end of the connecting member;

[0023] The two installation shafts in each installation structure are respectively located at opposite ends of each set of the second fixing members, and the two installation shafts are plug-fitted with the two second bearing members in a one-to-one correspondence.

[0024] According to the anti-fracture rhythmic chassis provided by the utility model, the connecting member is a rigid member.

[0025] According to the anti-fracture rhythmic chassis provided by the present invention, the first end of the connecting member is hinged to the fixing frame, and the second end of the connecting member is hinged to the rhythmic frame.

[0026] According to an anti-fracture rhythmic chassis provided by the utility model, the supporting connection mechanism also includes a first pin and a second pin. The first end of the connecting member and one of the fixing frame are connected to the first pin, and a first hole is provided on the other. The first pin is passed through the first hole. The first end of the connecting member can rotate around the axis of the first pin. The second end of the connecting member and one of the rhythmic frame are connected to the second pin, and a second hole is provided on the other. The second pin is passed through the second hole. The second end of the connecting member can rotate around the axis of the second pin.

[0027] According to an anti-fracture rhythmic chassis provided by the utility model, the supporting connection mechanism also includes a third pin and a fourth pin, the connecting member is provided with a third hole at the first end and a fourth hole at the second end, the fixed frame is provided with a fifth hole connected to the third hole, and the rhythmic frame is provided with a sixth hole connected to the fourth hole, the third pin is passed through the third hole and the fifth hole, the first end of the connecting member can rotate around the axis of the third pin, the fourth pin is passed through the fourth hole and the sixth hole, and the second end of the connecting member can rotate around the axis of the fourth pin.

[0028] According to an anti-fracture rhythmic chassis provided by the utility model, the fixed frame also includes a first sheet-like bracket, the fifth hole is opened on the first sheet-like bracket along the thickness direction of the first sheet-like bracket, the rhythmic frame also includes a second sheet-like bracket, the sixth hole is opened on the second sheet-like bracket along the thickness direction of the second sheet-like bracket, the connecting member is a sheet-like member, and the third hole and the fourth hole are both opened on the connecting member along the thickness direction of the connecting member.

[0029] According to an anti-fracture rhythmic chassis provided by the utility model, the drive motor includes a drive motor and a crankshaft structure, the power input end of the crankshaft structure is transmission-connected to the drive motor, the power output end of the crankshaft structure is transmission-connected to the rhythmic frame, and the crankshaft structure drives the rhythmic frame to reciprocate relative to the fixed frame.

[0030] The utility model also provides an anti-fracture rhythmic chassis, comprising:

[0031] Fixed frame;

[0032] Rhythm rack;

[0033] a supporting connection mechanism, wherein the rhythm frame is supported above the fixed frame by the supporting connection mechanism, the supporting connection mechanism comprising a connecting member, the connecting member comprising a first end and a second end opposite to each other, wherein one of the connection modes between the first end and the fixed frame and between the second end and the rhythm frame is a fixed connection and the other is a rotational connection;

[0034] The driving mechanism includes a driving motor, wherein the power output end of the driving motor is transmission-connected to the rhythm frame, and the driving motor drives the rhythm frame to reciprocate back and forth relative to the fixed frame. In the process of the rhythm frame being driven by the driving motor to reciprocate back and forth relative to the fixed frame, the first end of the connecting member can rotate relative to the fixed frame, or the second end can rotate relative to the rhythm frame.

[0035] The utility model also provides a rhythmic furniture, comprising the above-mentioned anti-fracture rhythmic chassis.

[0036] The anti-fracture rhythmic chassis provided by the utility model has at least one end of the connecting piece capable of rotating relative to the fixed frame or the rhythmic frame, wherein the rotating connection is relatively fixed, thereby reducing the mechanical stress of the fixed frame and the rhythmic frame on the connecting piece during operation, reducing the possibility of fatigue fracture of the connecting piece, and extending the service life.

[0037] In addition, the rhythm frame is supported above the fixed frame by a connecting piece, the connecting piece is in a compressed state, and the driving mechanism adopts a driving motor, which is transmission-connected to the rhythm frame. Therefore, the connection between the rhythm frame and the fixed frame is more stable and safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0039] Figure 1 It is a structural diagram of the rhythmic chassis provided by this application;

[0040] Figure 2 yes Figure 1 A schematic structural diagram of the supporting connection mechanism in FIG.

[0041] Figure 3 yes Figure 2 Schematic diagram of the decomposition;

[0042] Figure 4 This is an exploded schematic diagram of another supporting connection mechanism provided by the present application;

[0043] Figure 5 This is an exploded schematic diagram of another support and connection mechanism provided by the present application, wherein the fixed frame and the rhythm frame only show the parts connected to the support and connection mechanism;

[0044] Figure 6 This is an exploded schematic diagram of another support and connection mechanism provided by the present application, wherein the fixed frame and the rhythm frame only show the parts connected to the support and connection mechanism;

[0045] Figure 7 This is a structural diagram of a rhythmic chassis according to another embodiment of the present application;

[0046] Figure 8 This is a schematic structural diagram of the driving mechanism in the rhythmic chassis provided in an embodiment of the present application;

[0047] Figure 9yes Figure 8 Schematic diagram of the exploded drive mechanism.

[0048] Reference numerals:

[0049] 100, fixing frame; 120, first hole; 130, fifth hole; 140, first sheet-shaped bracket;

[0050] 200, rhythm rack; 220, second hole; 230, sixth hole; 240, second sheet support;

[0051] 300, driving mechanism; 310, driving motor; 311, motor seat; 312, motor body; 313, conveyor belt; 320, crankshaft structure; 321, crankshaft seat; 322, crankshaft; 323, rocker; 324, spring;

[0052] 400, support and connection mechanism; 410, connecting member; 411, cylindrical spring; 412, gasket; 413, first end; 4131, third hole; 414, second end; 4141, fourth hole; 420, bearing unit; 421, first bearing member; 422, first fixing member; 4221, fixing body; 42211, positioning recess; 4222, positioning column; 430, connecting bolt; 440, metal washer; 450, flexible rubber ring; 460, first pin; 470, second pin; 480, third pin; 490, fourth pin;

[0053] 500, bearing seat; 510, first installation channel. DETAILED DESCRIPTION

[0054] Examples of the present embodiment are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present embodiment and are not to be construed as limiting the present embodiment.

[0055] In the description of this embodiment, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this embodiment.

[0056] In the description of this embodiment, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0057] In the description of this embodiment, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this embodiment based on the specific content of the technical solution.

[0058] In the related art, during the operation of the furniture, the side planes on the dynamic and static frames that cooperate with the connecting piece 410 should be parallel to each other. However, due to the displacement of the positions of the dynamic and static frames during operation, the plane on the frame that cooperates with the connecting piece 410 is tilted relative to the horizontal plane, so that there is an error gap between the cooperation plane of the connecting piece 410 and the end side of the frame, wherein the above-mentioned cooperation plane can be the side plane of the connecting piece 410 or the axial plane of the connecting piece.

[0059] The following combination Figures 1 to 8 The present invention describes an anti-fracture rhythmic chassis and rhythmic furniture. The rhythmic furniture comprises the aforementioned anti-fracture rhythmic chassis and a supporting body. The back-and-forth reciprocating movement of the anti-fracture rhythmic chassis drives the supporting body to perform relative rhythmic movements. It is understood that in embodiments of the present invention, the aforementioned rhythmic furniture may be a rhythmic chair, a rhythmic bed, or the like.

[0060] The structural diagram of the rhythmic chassis provided in this application is shown in Figure 1The rhythm frame includes a fixed frame 100, a rhythm frame 200, a driving mechanism 300, and a supporting and connecting mechanism 400. The rhythm frame 200 is supported by the supporting and connecting mechanism 400 and is located above the fixed frame 100. The supporting and connecting mechanism 400 includes a connecting member 410. The connecting member 410 includes a first end 413 and a second end 414 opposite to each other. The first end 413 is rotatably connected to the fixed frame 100, and the second end 414 is rotatably connected to the rhythm frame 200. The driving mechanism 300 includes a driving motor 310 that can be self-locked when power is off. The power output end of the driving motor 310 is transmission-connected to the rhythm frame 200. The driving motor 310 drives the rhythm frame 200 to reciprocate back and forth relative to the fixed frame 100. Specifically, during the process of the rhythm frame 200 being driven back and forth by the driving motor 310 relative to the fixed frame 100, the first end 413 of the connecting member 410 can rotate relative to the fixed frame 100, and the second end 414 can rotate relative to the rhythm frame 200. It can be understood that the connecting piece can be made of elastic material or can be made of rigid material.

[0061] The first end 413 of the connecting member 410 is rotatable relative to the fixed frame 100, and the second end 414 is rotatable relative to the rhythm frame 200. The connecting member 410 is rotatably connected to the rhythm frame 200 and the fixed frame 100, respectively. The rotatable connection is relatively fixed, thereby reducing the mechanical stress on the connecting member 410 from the fixed frame 100 and the rhythm frame 200, reducing the possibility of fatigue fracture of the connecting member 410, and extending the service life of the furniture.

[0062] For example, Figures 2 to 4 As shown, an embodiment of the present application provides an anti-fracture rhythm chassis, including a fixed frame 100, a rhythm frame 200, a support and connection mechanism 400 and a drive motor 310. The support and connection mechanism 400 includes a connecting member 410 and two groups of bearing units 420. The first end 413 of the connecting member 410 is rotatably mounted on the fixed frame 100 through one group of bearing units 420, and the second end 414 of the connecting member 410 is rotatably mounted on the rhythm frame 200 through the other group of bearing units 420 to support the rhythm frame 200 on the fixed frame 100; the power output end of the drive motor 310 is transmission-connected to the rhythm frame 200, and the drive motor 310 drives the rhythm frame 200 to move back and forth relative to the fixed frame 100.

[0063] The rhythmic chassis provided by the present invention is provided with a supporting connection mechanism 400, which can effectively guide the fixed frame 100 and the rhythmic chassis that move back and forth, and limit the relative positions of the fixed frame 100 and the rhythmic chassis in the vertical direction; the connecting piece 410 is installed on the fixed frame 100 and the rhythmic chassis through a bearing mechanism. Therefore, after the rhythmic chassis is assembled, the end of the connecting piece 410 cooperates with the bearing unit 420 to rotate relative to the fixed frame 100 and the rhythmic chassis 200, which can adapt to the structural accuracy error of the fixed frame 100 or the rhythmic chassis 200, and is conducive to reducing the mechanical stress between the end of the connecting piece 410 and the fixed frame 100 and the rhythmic chassis 200, thereby improving reliability and extending service life.

[0064] It should be noted that the description herein of the rhythm frame 200 being supported by the support and connection mechanism 400 above the fixed frame 100 means that the connection between the rhythm frame 200 and the support and connection mechanism 400 is vertically higher than the connection between the rhythm frame 200 and the support and connection mechanism 400. Specifically, the height of the second end 414 of the connector 410 is the height of the first end 413. In this case, the rhythm frame 200 as a whole can be positioned higher than the fixed frame 100, but this is not limiting. The two can also be nested within each other, for example, with the rhythm frame 200 positioned over the fixed frame 100 to reduce the overall height of the rhythm frame. It should be understood that regardless of the arrangement of the fixed frame 100 and the rhythm frame 200, from the perspective of their connection to the support and connection mechanism 400, the rhythm frame 200 is supported by the support and connection mechanism 400, i.e., the rhythm frame 200 is lifted by the support and connection mechanism 400. Consequently, the connector 410 in the support and connection mechanism 400 is subjected to pressure, providing effective support and ensuring a stable and secure overall structure.

[0065] In addition, it can also be understood that, in this embodiment, in addition to being supported by the support and connection mechanism 400 and indirectly connected to the fixed frame 100, the rhythm frame 200 is also connected to the fixed frame 100 through the drive mechanism 300. Specifically, the drive mechanism 300 includes a drive motor 310 that can self-lock when power is off. That is, the drive motor 310 can be in a self-locking state when no power is supplied, and its output shaft will not rotate. In this case, the rhythm frame 200 will also remain stationary relative to the fixed frame 100 due to the constraint of the drive mechanism 300, so that the rhythm frame 200 will not become unstable and the overall structure is stable and safe.

[0066] It is understandable that the drive motor 310 with a self-locking function is already well known to those skilled in the art, such as adding a brake device, etc., which will not be described in detail here.

[0067] It is understandable that, referring to Figures 2 to 4In an embodiment of the present invention, a mounting structure is provided between the fixed frame 100 and the corresponding bearing unit 420 of the supporting connection mechanism 400, and between the rhythmic frame 200 and the corresponding other group of bearing units 420 of the supporting connection mechanism 400, and each mounting structure and the corresponding bearing unit 420 are configured to be relatively rotatable.

[0068] Specifically, refer to Figures 2 to 4 In this embodiment, each mounting structure includes a bearing seat 500, the fixed frame 100 is connected to the bearing seat 500 of the corresponding mounting structure, the rhythmic frame 200 is connected to the bearing seat 500 corresponding to another mounting structure, and each bearing seat 500 is provided with a first mounting channel 510; each group of bearing units 420 includes a first bearing member 421 and a first fixing member 422, the first bearing member 421 is provided in the first mounting channel 510, the first fixing member 422 is rotatably passed through the first bearing member 421, and the first fixing member 422 is fixedly connected to the end of the connecting member 410. With the above structure, the bearing seats 500 on both the fixed frame 100 and the rhythm frame 200 provide support and positioning functions for the bearing unit 420, so that the first fixing member 422 can rotate in the first mounting channel 510 of the bearing seat 500 through the first bearing member 421 and maintain stable movement; the first bearing member 421, as a part of the bearing unit 420, is installed in the first mounting channel 510 of the bearing seat 500, providing support and guidance for the first fixing member 422, reducing friction and wear, and ensuring smooth rotation of the first fixing member 422; by fixing the first fixing member 422 to the end of the connecting member 410, it can be ensured that the first fixing member 422 will not loosen or detach during movement, thereby ensuring the stability and reliability of the rhythm chassis.

[0069] Specifically, refer to Figures 2 to 3In this embodiment, the first fixing member 422 includes a fixing body 4221 and a positioning column 4222. The fixing body 4221 is provided with a positioning recess 42211. The positioning column 4222 is provided at the positioning recess 42211. The end of the connecting member 410 is clamped between the bottom wall of the positioning recess 42211 and the side wall of the positioning column 4222. The connecting member 410 is an elastic plate. The positioning column 4222, the connecting member 410 and the fixing body 4221 are fixedly connected by a connecting structure. With the above arrangement, the fixed body 4221 serves as the main part of the first fixing member 422, and the first bearing member 421 is sleeved on the fixed body 4221. The first bearing member 421 is located between the outer wall of the fixed body 4221 and the inner wall of the first installation channel 510, providing axial support and guidance for the first fixing member 422, ensuring the stable rotation of the first fixing member 422; through the cooperation of the positioning recess 42211 and the positioning column 4222, the connecting member 410 is fixed on the first fixing member 422 and the positioning function is realized, ensuring the relative position between the first fixing member 422 and the connecting member 410 is stable; at the same time, the positioning column 4222, the connecting member 410 and the fixed body 4221 are fixedly connected by the connecting structure, thereby improving the stability and reliability of the three; and the connecting member 410 is an elastic plate with a simple structure, convenient manufacturing and low cost. The elastic performance of the elastic plate itself can adapt to the changes during the relative movement of the fixing frame 100 and the rhythm frame 200, and has good adaptability.

[0070] It should be noted that, referring to Figures 2 to 4 In this embodiment, each bearing unit 420 includes two first bearing members 421. In some embodiments, the number of first bearing members 421 may be one, three, or the like, and this is not limited here. Furthermore, in some embodiments, the connecting member 411 may be a columnar structure in addition to being an elastic plate, and this is not limited here.

[0071] Specifically, refer to Figures 3 and 4 In this embodiment, the width of the positioning recess 42211 is adapted to the width of the end of the connecting member 410, i.e., the elastic plate, to limit the lateral movement of the end of the connecting member 410 relative to the positioning recess 42211, so as to limit the left and right deviation of the connecting member 410.

[0072] Specifically, refer to Figure 3In this embodiment, the connecting structure includes a connecting bolt 430, a metal washer 440 and a flexible rubber ring 450. The rod of the connecting bolt 430 passes through the positioning column 4222, the connecting piece 410 and the fixed body 4221 in sequence. The rod of the connecting bolt 430 is screwed to the fixed body 4221. The metal washer 440 and the flexible rubber ring 450 are both sleeved on the connecting bolt 430, and the metal washer 440 is located at the head of the connecting bolt 430 and the diameter of the flexible rubber ring 450. The flexible rubber ring 450 is located between the metal washer 440 and the positioning column 4222. Through the above-mentioned setting, the connection between the positioning column 4222, the connecting part 410 and the fixed body 4221 is ensured to be stable through the fixation of the connecting bolt 430 to prevent loosening or falling off; the metal washer 440 has high pressure resistance and wear resistance, and can provide uniform pressure distribution between the connecting bolt 430 and the positioning column 4222, thereby enhancing the stability and reliability of the connection; the flexible rubber ring 450 is usually made of elastic material, has good sealing and buffering properties, and reduces the impact of vibration and impact on the connection.

[0073] Of course, in some embodiments, the above-mentioned connection structure can also be in the form of threads, pins, welding, etc., and an appropriate connection method can be selected according to specific design requirements.

[0074] Reference Figure 4 In some embodiments, the first fixing member 422 includes a fixing body 4221, and the fixing body 4221 is provided with a positioning recess 42211; the connecting member 410 includes a cylindrical spring 411 and two gaskets 412, and the two gaskets 412 are respectively fixedly connected to the opposite ends of the cylindrical spring 411, and the two gaskets 412 are fixedly connected to the first fixing members 422 of the two sets of bearing units 420 in a one-to-one correspondence, and the gaskets 412 are plugged into the corresponding positioning recesses 42211. With the above arrangement, through the insertion and cooperation of the positioning recess 42211 on the fixed body 4221 and the gasket 412, the positioning recess 42211 provides accurate position guidance to ensure that the position of the bearing unit 420 corresponds to the fixed body 4221, and the insertion and cooperation of the gasket 412 increases the stability of the fixation. The cylindrical spring 411, as a part of the connecting member 410, provides a certain elastic support function, which can play a shock-absorbing role and reduce the transmission to the fixed body 4221, thereby improving stability and reliability; in addition, through the elastic performance of the cylindrical spring 411 itself, it can adapt to the changes during the relative movement of the fixed frame 100 and the rhythm frame 200, and has good adaptability.

[0075] It should be noted that, in the above embodiment, the above-mentioned gasket 412 is fixedly connected to the corresponding fixed body 4221 by bolts and nuts, with a simple structure and convenient disassembly and maintenance; and in the above embodiment, the width of the gasket 412 is adapted to the width of the positioning recess 42211; of course, in some embodiments, the width of the gasket 412 can also be smaller than the width of the positioning recess 42211, which is not limited here.

[0076] It should also be noted that, referring to Figures 2 to 4 In an embodiment of the present invention, the fixing frame 100 is detachably connected to the corresponding bearing seat 500, and the rhythmic frame 200 is detachably connected to the corresponding bearing seat 500. When maintenance or replacement of components is required, the relevant parts can be quickly disassembled, repaired or replaced, and reconnected, reducing maintenance time and workload.

[0077] Specifically, refer to Figures 2 to 4 In this embodiment, one bearing seat 500 of the support connection mechanism 400 is screwed to the fixing frame 100 via a first mounting bolt, and the other bearing seat 500 is screwed to the fixing frame 100 via a second mounting bolt. Of course, the fixing frame 100 and the corresponding bearing seat 500 can also be welded or formed into an integral structure, and the bearing seat 500 and the corresponding bearing seat 500 can also be welded or formed into an integral structure.

[0078] Of course, in other embodiments, each mounting structure includes two mounting shafts, the fixed frame 100 is connected to the two mounting shafts of the corresponding mounting structure, and the rhythmic frame 200 is connected to the two mounting shafts of the corresponding other mounting structure; each set of bearing units 420 includes a second fixing member and two second bearing members, and second mounting channels are provided at opposite ends of the first fixing member 422. The two second bearing members correspond to the two second mounting channels one-to-one and are plug-fitted together, and the second fixing member is fixedly connected to the end of the connecting member 410; wherein the two mounting shafts in each mounting structure are respectively located at opposite ends of each set of second fixing members, and the two mounting shafts correspond to the two second bearing members one-to-one and are plug-fitted together, which is conducive to reducing the deformation of the connecting member 410 caused by assembly, and is conducive to reducing the mechanical stress between the end of the connecting member 410 and the fixed frame 100 and the rhythmic frame 200, thereby improving reliability and extending service life. It should be noted that in the above embodiment, the connecting member 410 is also set as an elastic plate.

[0079] In some embodiments, please refer to Figure 5 and Figure 6The support connection mechanism 400 can employ an articulated structure, meaning that the connection between the connector 410 and both the fixed frame 100 and the rhythm frame 200 is hinged. Specifically, the connector 410 includes a first end 413 and a second end 414, with the first end 413 being hingedly connected to the fixed frame 100, and the second end 414 being hingedly connected to the rhythm frame 200. This hinged connection provides a simple structure, stable and reliable operation, and ease of maintenance.

[0080] In some embodiments, please refer to Figure 5 The supporting connection mechanism 400 also includes a first pin 460 and a second pin 470. One of the first end 413 of the connecting member 410 and the fixed frame 100 is connected to the first pin 460, and the other is provided with a first hole 120. The first pin 460 is inserted into the first hole 120. The first end 413 of the connecting member 410 can rotate around the axis of the first pin 460. The second end 414 of the connecting member 410 and the rhythm frame 200 are connected to the second pin 470. The other is provided with a second hole 220. The second pin 470 is inserted into the second hole 220. The second end 414 of the connecting member 410 can rotate around the axis of the second pin 470.

[0081] In some embodiments, the first end 413 of the connector 410 is connected to one end of a first pin 460. The fixing frame 100 is provided with a first hole 120, and the first pin 460 is disposed within the first hole 120. In some embodiments, the first hole 120 is a circular hole, and the cross-sectional shape of the portion of the first pin 460 that passes through the first hole 120 is also circular, with the cross-sectional shape matching the size of the first hole 120. The first pin 460 can rotate about the axial direction of the first pin 460 within the first hole 120, thereby allowing the first end 413 of the connector 410 to rotate about the axis of the first pin 460.

[0082] In some embodiments, as an alternative, the fixing frame 100 can also be connected to one end of the first pin shaft, and a first hole is provided at the first end of the connecting member. The first pin shaft is passed through the first hole, and the first pin shaft can rotate around the axial direction of the first pin shaft in the first hole, so that the first end of the connecting member can rotate around the axis of the first pin shaft.

[0083] In some embodiments, the second end 414 of the connector 410 is connected to the second pin 470. The rhythm rack 200 is provided with a second hole 220, and the second pin 470 is disposed within the second hole 220. In some embodiments, the second hole 220 is a circular hole, and the cross-sectional shape of the portion of the second pin 470 that passes through the second hole 220 is also circular, with the cross-sectional shape matching the size of the second hole 220. The second pin 470 can rotate about the axial direction of the second pin 470 within the second hole 220, thereby enabling the second end 414 of the connector 410 to rotate about the axis of the second pin 470.

[0084] In some embodiments, as an alternative, the second pin is connected to the rhythm frame, and a second hole is provided at the second end of the connecting member. The second pin is passed through the second hole, and the second pin can rotate around the axial direction of the second pin in the second hole, so that the second end of the connecting member can rotate around the axis of the second pin.

[0085] In some embodiments, the first pin shaft 460 and the second pin shaft 470 further include a limiter disposed at their ends. The limiter functions to limit the movement distance of the rhythm frame relative to the fixed frame in the axial direction of the pin shaft.

[0086] In some embodiments, as another embodiment of the hinge structure, please refer to Figure 6 The support connection mechanism 400 also includes a third pin 480 and a fourth pin 490. The first end 413 of the connecting member 410 is provided with a third hole 4131, and the second end 414 is provided with a fourth hole 4141. The fixed frame 100 is provided with a fifth hole 130 connected to the third hole 4131, and the rhythm frame 200 is provided with a sixth hole 230 connected to the fourth hole 4141. The third pin 480 is inserted into the third hole 4131 and the fifth hole 130. The first end 413 of the connecting member 410 can rotate around the axis of the third pin 480. The fourth pin 490 is inserted into the fourth hole 4141 and the sixth hole 230. The second end 414 of the connecting member 410 can rotate around the axis of the fourth pin 490.

[0087] In some embodiments, the third hole 4131 , the fourth hole 4141 , the fifth hole 130 , and the sixth hole 230 are all circular holes.

[0088] In some embodiments, the third pin shaft 480 and the fourth pin shaft 490 further include limit members respectively provided at both ends thereof, and the function of the limit members is to limit the movement distance of the rhythm frame relative to the fixed frame in the axial direction of the pin shaft.

[0089] In some embodiments, the fixing frame 100 includes a first sheet-shaped support 140, with the fifth hole 130 defined along the thickness of the first sheet-shaped support 140. The rhythm frame 200 also includes a second sheet-shaped support 240, with the sixth hole 230 defined along the thickness of the second sheet-shaped support 240. The connecting member 410 is a sheet-shaped member, with the third hole 4131 and the fourth hole 4141 defined along the thickness of the connecting member 410. A sheet-shaped support or sheet-shaped member refers to a member whose thickness is significantly smaller than its length and width. Generally, a length or width five times the thickness is considered significantly smaller.

[0090] In some embodiments, the connector 410 is a rigid component, which helps to improve the tolerance of the connector 410 and reduce the risk of the connector 410 breaking.

[0091] As previously mentioned, in the vertical direction, the second end 414 of the connecting member 410 in the support connection mechanism of this embodiment is higher than the first end 413 of the connecting member 410. Because the second end 414 is higher than the first end 413, and the first end 413 is connected to the fixed frame 100, the first end 413 connected to the fixed frame 100 will not experience relative displacement in the horizontal and vertical directions, but will only rotate. When the rhythm frame 200 is subjected to the force output by the drive motor, the second end 414 will experience horizontal displacement. Since the first end 413 does not experience horizontal and vertical displacement, the second end 414 will swing in the horizontal and vertical directions. This movement will make the user of the rhythm frame 200 more comfortable.

[0092] It can be understood that in the embodiments of the present invention, the connecting member 410 can be an elastic plate with elasticity, or the connecting member 410 can be an elastic structure with a cylindrical spring 411; of course, in some embodiments, the above-mentioned connecting member 410 can also be a non-elastic rigid member to play a certain supporting role. For example, the rigid member can be a steel bar, etc., which is not limited here.

[0093] It should be noted that, in the embodiment of the present utility model, the number of the above-mentioned supporting connection mechanisms 400 is not limited here. Figure 1 In this embodiment, the above-mentioned supporting and connecting mechanisms 400 are four groups, two groups of supporting and connecting mechanisms 400 are located at the front end of the rhythmic chassis, and two groups of supporting and connecting mechanisms 400 are located at the rear end of the rhythmic chassis to improve the stability of the movement.

[0094] Figure 7 This is a structural diagram of a rhythmic chassis according to another embodiment of the present invention. Figure 7As shown, the rhythm frame includes a fixed frame 100, a rhythm frame 200, a driving mechanism 300, and a supporting and connecting mechanism 400. The rhythm frame 200 is supported by the supporting and connecting mechanism 400 and is located above the fixed frame 100. The supporting and connecting mechanism 400 includes a connecting member 410. The connecting member 410 includes a first end 413 and a second end 414 opposite to each other. The first end 413 is fixedly connected to the fixed frame 100, and the second end 414 is rotatably connected to the rhythm frame 200. The driving mechanism 300 includes a driving motor 310. The power output end of the driving motor 310 is in transmission connection with the rhythm frame 200. The driving motor 310 drives the rhythm frame 200 to reciprocate back and forth relative to the fixed frame 100. Specifically, during the process of the rhythm frame 200 being driven back and forth by the driving motor 310 relative to the fixed frame 100, the second end 414 of the connecting member 410 can rotate relative to the rhythm frame 200. It can be understood that the connecting piece can be made of elastic material or can be made of rigid material.

[0095] The first end 413 of the connector 410 is fixedly connected to the fixed frame 100. Thus, when the drive mechanism 300, such as the drive motor 310, is de-energized, the connection can stably support the rhythm frame 200, allowing the rhythm frame 200 to remain stationary. The second end 414 of the connector 410 is rotatable relative to the rhythm frame 200. This reduces mechanical stress from the rhythm frame 200 on the connector 410, reduces the likelihood of fatigue fracture of the connector 410, and extends the life of the furniture. Of course, this is not limiting. Alternatively, the first end 413 of the connector 410 can be rotatably connected to the fixed frame 100, while the second end 414 is fixedly connected to the rhythm frame 200. In other words, as long as one of the first end 413 and the second end 414 is fixedly connected to a corresponding portion of the rhythm frame, and the other is rotatably connected to a corresponding portion of the rhythm frame, the connection is sufficient.

[0096] It is understandable that the specific structure of the first end 413 being rotatably connected to the fixed frame 100, or the second end 414 being rotatably connected to the rhythm frame 200 can adopt the various support connection mechanisms 400 shown in the aforementioned embodiments, as long as the structure of one end is changed to a fixed connection.

[0097] It is understood that, in addition to the drive motor 310, the drive mechanism also includes other components constituting a transmission system. In some embodiments, please refer to Figure 8 and Figure 9The drive mechanism further includes a crankshaft structure 320. The power input end of the crankshaft structure 320 is in transmission connection with the drive motor 310, and the power output end of the crankshaft structure 320 is in transmission connection with the rhythm frame 200. The crankshaft structure 320 drives the rhythm frame 200 to reciprocate relative to the fixed frame 100. By placing a sofa or bed on the rhythm frame 200, the person lying on it can exercise passively, thereby achieving the effects of weight loss and promoting blood circulation. The crankshaft structure 320 and the drive motor 310 drive the rhythm frame 200 to rock back and forth relative to the fixed frame 100. Because the crankshaft structure 320 cannot move left or right, it acts as a limiter to restrict the left and right movement of the rhythm frame 200.

[0098] For details, please refer to Figure 8 and Figure 9 In this embodiment, the driving motor 310 includes a motor seat 311, a motor body 312 and a conveyor belt 313. The motor seat 311 is arranged on the fixed frame 100, the driving motor 312 is arranged on the motor seat 311, and a driving pulley is arranged on the rotating shaft of the motor body 312; the crankshaft structure 320 includes a crankshaft seat 321, a crankshaft 322, a rocker 323 and a spring 324. The crankshaft seat 321 is arranged on the fixed frame 100, the crankshaft 322 is arranged on the crankshaft seat 321, one end of the rocker 323 is sleeved on the crankshaft 322, and the other end is provided with a spring 324, the spring 324 is fixedly connected to the rhythm frame 200, and a passive pulley is provided on the crankshaft 322. The passive pulley and the active pulley are connected through the conveyor belt 313.

[0099] With the above structure, the motor body 312 drives the active pulley to rotate, the active pulley drives the passive pulley to rotate through the transmission belt 313, the crankshaft 322 is driven to rotate by the passive pulley, and the crankshaft 322 drives the rocker 323 to swing. One side of the spring 324 is fixedly connected to the rocker 323, and the other side is fixedly connected to the rhythm frame 200. Because the rocker 323 will move up and down under the drive of the crankshaft 322, the deformation of the spring 324 adapts to the floating.

[0100] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present embodiment. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0101] Although examples of the present embodiment have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and intent of the present embodiment, and the scope of the present embodiment is defined by the claims and their equivalents.

Claims

1. An anti-fracture rhythmic chassis, characterized in that: include: Fixed frame (100); Rhythm rack (200); A support and connection mechanism (400), wherein the rhythm frame (200) is supported above the fixed frame (100) by the support and connection mechanism (400), wherein the support and connection mechanism (400) includes a connecting member (410), wherein the connecting member (410) includes a first end (413) and a second end (414) opposite to each other, wherein the first end (413) is rotatably connected to the fixed frame (100), and the second end (414) is rotatably connected to the rhythm frame (200); A driving mechanism (300) includes a driving motor (310) capable of self-locking when powered off, a power output end of the driving motor (310) being transmission-connected to the rhythm frame (200), and the driving motor (310) driving the rhythm frame (200) to reciprocate back and forth relative to the fixed frame (100), wherein, during the process of the rhythm frame (200) being driven by the driving motor (310) to reciprocate back and forth relative to the fixed frame (100), the first end (413) of the connecting member (410) is capable of rotating relative to the fixed frame (100), and the second end (414) is capable of rotating relative to the rhythm frame (200).

2. The anti-fracture rhythmic chassis according to claim 1, characterized in that: The supporting connection mechanism (400) further includes two groups of bearing units (420), wherein a first end (413) of the connecting member (410) is rotatably mounted on the fixed frame (100) via one group of the bearing units (420), and an opposite second end (414) of the connecting member (410) is rotatably mounted on the rhythm frame (200) via the other group of the bearing units (420), so as to suspend the rhythm frame (200) on the fixed frame (100).

3. The anti-fracture rhythmic chassis according to claim 2, characterized in that: A mounting structure is provided between the fixed frame (100) and the corresponding bearing unit (420) of the supporting and connecting mechanism (400), and between the rhythmic frame (200) and the corresponding other group of bearing units (420) of the supporting and connecting mechanism (400). Each mounting structure and the corresponding bearing unit (420) are configured to be relatively rotatable.

4. The anti-fracture rhythmic chassis according to claim 3, characterized in that: Each of the mounting structures comprises a bearing seat (500), the fixing frame (100) is connected to the bearing seat (500) corresponding to the mounting structure, the rhythmic frame (200) is connected to the bearing seat (500) corresponding to another mounting structure, and each of the bearing seats (500) is provided with a first mounting channel (510); Each group of the bearing units (420) includes a first bearing member (421) and a first fixing member (422), wherein the first bearing member (421) is arranged in the first installation channel (510), the first fixing member (422) is rotatably inserted into the first bearing member (421), and the first fixing member (422) is fixedly connected to the end of the connecting member (410).

5. The anti-fracture rhythmic chassis according to claim 4, characterized in that: The first fixing member (422) includes: A fixed body (4221), wherein the fixed body (4221) is provided with a positioning recess (42211); A positioning column (4222) is provided at the positioning recess (42211), and an end portion of the connecting member (410) is sandwiched between the bottom wall of the positioning recess (42211) and the side wall of the positioning column (4222); Wherein, the connecting member (410) is an elastic plate, and the positioning column (4222), the elastic plate and the fixed body (4221) are fixedly connected via a connecting structure.

6. The anti-fracture rhythmic chassis according to claim 5, characterized in that: The connection structure comprises a connecting bolt (430), a metal washer (440) and a flexible rubber ring (450); the rod of the connecting bolt (430) passes through the positioning column (4222), the connecting piece (410) and the fixed body (4221) in sequence; the rod of the connecting bolt (430) is screwed to the fixed body (4221); the metal washer (440) and the flexible rubber ring (450) are both sleeved on the connecting bolt (430); the metal washer (440) is located between the head of the connecting bolt (430) and the diameter of the flexible rubber ring (450); and the flexible rubber ring (450) is located between the metal washer (440) and the positioning column (4222).

7. The anti-fracture rhythmic chassis according to claim 3, characterized in that: Each of the mounting structures comprises two mounting shafts, the fixing frame (100) is connected to the two mounting shafts corresponding to the mounting structure, and the rhythmic frame (200) is connected to the two mounting shafts corresponding to another mounting structure; Each group of the bearing units (420) comprises a second fixing member and two second bearing members, the second fixing members are provided with second installation channels at opposite ends, the two second bearing members correspond to the two second installation channels one by one and are plug-fitted, and the second fixing member is fixedly connected to the end of the connecting member (410); The two installation shafts in each installation structure are respectively located at opposite ends of each set of the second fixing members, and the two installation shafts are plug-fitted with the two second bearing members in a one-to-one correspondence.

8. The anti-fracture rhythmic chassis according to claim 1, characterized in that: The connecting member (410) is a rigid member.

9. The anti-fracture rhythmic chassis according to claim 1, characterized in that: The first end (413) of the connecting member is hinged to the fixing frame (100), and the second end (414) of the connecting member is hinged to the rhythm frame (200).

10. The anti-fracture rhythmic chassis according to claim 9, characterized in that: The support and connection mechanism (400) further includes a first pin (460) and a second pin (470), wherein one of the first end (413) and the fixed frame (100) is connected to the first pin (460), and the other is provided with a first hole (120), the first pin (460) is inserted into the first hole (120), and the first end (413) can rotate around the axis of the first pin (460), and one of the second end (414) and the rhythm frame (200) is connected to the second pin (470), and the other is provided with a second hole (220), the second pin (470) is inserted into the second hole (220), and the second end (414) can rotate around the axis of the second pin (470).

11. The anti-fracture rhythmic chassis according to claim 9, characterized in that: The supporting connection mechanism (400) further includes a third pin shaft (480) and a fourth pin shaft (490), the first end (413) is provided with a third hole (4131), and the second end (414) is provided with a fourth hole (4141), the fixing frame (100) is provided with a fifth hole (130) connected to the third hole (4131), and the rhythm frame (200) is provided with a sixth hole (230) connected to the fourth hole (4141), the third pin shaft (480) is inserted into the third hole (4131) and the fifth hole (130), the first end (413) can rotate around the axis of the third pin shaft (480), the fourth pin shaft (490) is inserted into the fourth hole (4141) and the sixth hole (230), and the second end (414) can rotate around the axis of the fourth pin shaft (490).

12. The anti-fracture rhythmic chassis according to claim 11, characterized in that: The fixing frame (100) further comprises a first sheet-like support (140), the fifth hole (130) being provided on the first sheet-like support (140) along the thickness direction of the first sheet-like support (140), the rhythm frame (200) further comprises a second sheet-like support (240), the sixth hole (230) being provided on the second sheet-like support (240) along the thickness direction of the second sheet-like support (240), the connecting member (410) being a sheet-like member, the third hole (4131) and the fourth hole (4141) being provided on the connecting member (410) along the thickness direction of the connecting member (410).

13. The anti-fracture rhythmic chassis according to any one of claims 1 to 12, characterized in that: The driving mechanism (300) further comprises a crankshaft structure (320), wherein a power input end of the crankshaft structure (320) is in transmission connection with the driving motor (310), and a power output end of the crankshaft structure (320) is in transmission connection with the rhythm frame (200), and the crankshaft structure (320) drives the rhythm frame (200) to reciprocate relative to the fixed frame (100).

14. An anti-fracture rhythmic chassis, characterized in that: include: Fixed frame (100); Rhythm rack (200); A support and connection mechanism (400), wherein the rhythm frame (200) is supported above the fixed frame (100) by the support and connection mechanism (400), wherein the support and connection mechanism (400) comprises a connecting member (410), wherein the connecting member (410) comprises a first end (413) and a second end (414) opposite to each other, wherein one of the connection modes between the first end (413) and the fixed frame (100) and the second end (414) and the rhythm frame (200) is a fixed connection and the other is a rotational connection; A driving mechanism (300) includes a driving motor (310), wherein a power output end of the driving motor (310) is in transmission connection with the rhythm frame (200), and the driving motor (310) drives the rhythm frame (200) to move back and forth relative to the fixed frame (100), wherein, when the rhythm frame (200) is driven by the driving motor (310) to move back and forth relative to the fixed frame (100), the first end (413) of the connecting member (410) can rotate relative to the fixed frame (100), or the second end (414) can rotate relative to the rhythm frame (200).

15. A rhythmic furniture, characterized in that: Comprising the anti-fracture rhythmic chassis according to any one of claims 1 to 14.

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