Rocking driving mechanism, rocking chair underframe and rocking chair

Abstract

The utility model discloses a rocking driving mechanism, a rocking chair chassis and a rocking chair, and belongs to the technical field of rocking chairs. The swing driving mechanism comprises a mounting seat, a driving device arranged on the mounting seat, a swing rod in transmission connection with the output end of the driving device, an electromagnet arranged at the swing end of the swing rod, and a ferromagnetic transmission part matched with the electromagnet, wherein the electromagnet adsorbs the ferromagnetic transmission part to synchronously swing when being electrified. The swing mechanism can be freely switched between electric swing and manual swing, and the use requirements of users are met.

Description

Technical Field

[0001] The utility model relates to the technical field of rocking chairs, in particular to a rocking drive mechanism, a rocking chair chassis and a rocking chair. Background Art

[0002] A rocking chair is a common tool used by people for resting in their daily life. Traditional rocking chairs require manual force to rock, and in order to further improve the comfort, electric rocking chairs that can rock automatically are gradually entering people's lives.

[0003] In the prior art, for example, a Chinese utility model patent with patent number ZL201921199730.3 discloses an electric rocking chair, including a base frame, an electric rocking mechanism is provided on the base frame, a chair frame mechanism is installed on the electric rocking mechanism, the electric rocking structure includes a power unit fixedly installed on the base frame, a rolling surface bearing is installed on the output end of the power unit, a rotating disc is installed on the rolling surface bearing, a spline shaft is provided in the middle of the rotating disc, a swing connecting rod is connected to the rotating disc, the power unit rotates forward or reversely to drive the rotating disc to rotate forward or reversely to drive the swing connecting rod to swing back and forth, the front end of the swing connecting rod is connected to the crossbeam, and the left and right ends of the crossbeam are symmetrically connected with swing components.

[0004] As described above, the existing electric rocking chair is generally difficult to rock manually when not started because the components of its electric rocking mechanism are always in a tightly matched state. Therefore, this type of electric rocking chair will lose its rocking function in the event of a power outage or failure, and some users like to switch between electric and manual rocking. Therefore, the existing electric rocking chair needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the above-mentioned prior art and to provide a rocking drive mechanism, a rocking chair chassis and a rocking chair, which can freely switch between electric and manual rocking to meet the needs of users.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A swing drive mechanism comprises a mounting seat, a driving device arranged on the mounting seat, a swing rod transmission-connected to the output end of the driving device, an electromagnet arranged at the swing end of the swing rod, and a ferromagnetic transmission part cooperating with the electromagnet. When the electromagnet is energized, it attracts the ferromagnetic transmission part to perform synchronous swinging motion.

[0008] As a preferred embodiment of the utility model, the driving device is a reduction motor, a driving member is provided at the output end of the reduction motor, the rocker arm is rotatably connected to the mounting seat, and a transmission rod is rotatably connected between the eccentric portion of the driving member and the rocker arm.

[0009] Preferably for the present utility model, the side area of the ferromagnetic transmission member cooperating with the electromagnet is larger than the side area of the electromagnet.

[0010] Preferably for the present utility model, a reset member is provided between the side of the swing rod facing away from the electromagnet and the mounting seat.

[0011] Preferably for the present utility model, the driving device and the electromagnet are electrically connected to the same switch.

[0012] The present utility model further provides a rocking chair chassis, including a base, a support frame, and a rocking driving mechanism as described above. The support frame is rotatably connected to the base, and the rocking driving mechanism is disposed between the base and the support frame.

[0013] Preferably for the present utility model, the mounting seat is disposed on the base, and the ferromagnetic transmission member is disposed on the support frame.

[0014] Preferably for the present utility model, the support frame includes two support rods, a supporting rod disposed at the upper end of each support rod, and a synchronous connection frame connecting the two supporting rods. The ferromagnetic transmission member is disposed on the synchronous connection frame.

[0015] Preferably for the present utility model, the synchronous connection frame includes two bent vertical rods respectively connecting the two supporting rods, and a mounting cross rod connecting the lower ends of the two bent vertical rods. The ferromagnetic transmission member is disposed on the mounting cross rod.

[0016] The present utility model further provides a rocking chair, including a rocking chair chassis as described above, a seat and a backrest disposed on the rocking chair chassis.

[0017] The advantages of the present utility model are as follows: By adopting the magnetic adsorption method to realize the transmission connection between the driving component and the moving component, it can not only quickly switch between the transmission cooperation and disconnection cooperation modes, so as to realize the free switch between the electric and manual modes and meet the more diverse usage requirements of users; moreover, the structure of this transmission method is simpler, eliminating the complex transmission structure, with higher movement stability and lower cost at the same time. Description of the Drawings

[0018] Figure 1 Schematic structural diagram of a rocking driving mechanism provided for Embodiment 1;

[0019] Figure 2 Right view of a rocking driving mechanism provided for Embodiment 1;

[0020] Figure 3 Top view of a rocking driving mechanism provided for Embodiment 1;

[0021] Figure 4 Schematic structural diagram of a rocking chair chassis provided for Embodiment 2;

[0022] Figure 5 A right side view of a rocking chair chassis provided in Example 2;

[0023] Figure 6 A front view of a rocking chair chassis provided in Example 2;

[0024] In the figure: 1-mounting seat; 2-driving device; 21-driving member; 22-transmission rod; 3-rocker; 4-electromagnet; 5-ferromagnetic transmission member; 51-mounting plate; 6-base; 7-support frame; 71-support rod; 72-support rod; 73-synchronous connecting frame; 731-bent vertical rod; installation cross rod; 74-first connecting rod; 75-second connecting rod; 76-third connecting rod; 77-fourth connecting rod; 78-fifth connecting rod; 79-reinforcement rod. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] Example 1

[0027] like Figures 1-3 As shown, this embodiment provides a swing driving mechanism, including a mounting seat 1, a driving device 2 arranged on the mounting seat 1, a swing rod 3 connected to the output end of the driving device 2, an electromagnet 4 arranged at the swing end of the swing rod 3, and a ferromagnetic transmission member 5 cooperating with the electromagnet 4. Among them, the mounting seat 1 and the ferromagnetic transmission member 5 can be respectively installed on the parts that need to swing relative to each other. Taking the rocking chair as an example, the mounting seat 1 and the ferromagnetic transmission member 5 can be respectively installed on the base and the seat of the rocking chair. When the power is turned on, on the one hand, the electromagnet 4 is energized to generate magnetism, and attracts the ferromagnetic transmission member 5 to be adsorbed together, so as to achieve a fixed connection between the two; on the other hand, the driving device 2 drives the swing rod 3 to swing back and forth, and the swing rod 3 drives the ferromagnetic transmission member 5 to swing synchronously through the electromagnet 4, and the ferromagnetic transmission member 5 drives the seat to swing. When the power is disconnected, the electromagnet 4 loses power and loses magnetism, and is separated from the electromagnetic transmission member 5. The movement of the ferromagnetic transmission member 5 will not be restricted by the electromagnet 4 and the swing rod 3, so that the seat can swing freely, that is, swing manually.

[0028] It should be noted that the movement of the electromagnet 4 when it adsorbs to the ferromagnetic transmission member 5 is mainly completed by the electromagnet 4, which can generally be achieved by utilizing the elasticity of the swing rod 3 itself. That is, when the electromagnet 4 is energized, the magnetism overcomes the elasticity of the swing rod 3 itself, and the electromagnet 4 is attracted to the side of the ferromagnetic transmission member 5; when the electromagnet 4 loses power, the magnetism disappears, and the electromagnet 4 resets under the action of the elasticity of the swing rod 3 itself to avoid affecting the free swing of the ferromagnetic transmission member 5. Of course, in order to ensure the timely reset of the electromagnet, a reset member can be provided between the side of the swing rod 3 facing away from the electromagnet 4 and the mounting seat 1, and the reset member can generally be a tension spring. In addition, since the direction of mutual attraction between the electromagnet 4 and the ferromagnetic transmission member 5 is consistent with the swing axis direction of the swing rod 3, a certain movement space can also be designed for the swing rod 3 at the swing axis to provide a certain space for the movement of the electromagnet.

[0029] Specifically, the driving device 2 can generally adopt a reduction motor. A driving member 21 is provided at the output end of the reduction motor. The swing rod 3 is rotatably connected to the mounting seat 1, and a transmission rod 22 is rotatably connected between the eccentric portion of the driving member 21 and the swing rod 3. Among them, the driving member 21 can generally adopt a turntable. Since the transmission rod 22 is rotatably connected to the eccentric portion of the turntable, when the turntable rotates, it will pull the transmission rod 22 to perform a reciprocating motion, and the transmission rod 22 drives the swing rod 3 to swing back and forth, thereby realizing the swinging action of the swing rod 3 and the electromagnet 4.

[0030] The ferromagnetic transmission member 5 can generally adopt an iron plate. In order to facilitate the installation of the iron plate, a perforated mounting plate 51 is vertically provided at one end of the iron plate. Since the iron plate can swing freely when it is disengaged from the electromagnet 4, and the sitting postures of different users are different, the position of the iron plate in the relatively static state is not unique. Therefore, in order to ensure that the iron plate can be stably matched with the electromagnet 4, the side area of the iron plate that is matched with the electromagnet 4 is larger than the side area of the electromagnet 4, so as to increase the adsorption and matching range of the two. In addition, in order to ensure the attraction force between the electromagnet 4 and the iron plate, the thickness of the iron plate can be increased, or an iron block can be provided on the iron plate.

[0031] In order to simplify the control, the reduction motor and the electromagnet 4 are electrically connected to the same switch. Of course, considering more usage requirements, in addition to the switch that simultaneously activates the reduction motor and the electromagnet 4, we can also separately set a switch for the electromagnet 4 to fix the angles of the seat and backrest required by the user.

[0032] Embodiment 2

[0033] As Figures 4-6As shown in the figure, this embodiment provides a rocking chair chassis, which includes a base 6, a support frame 7, and a rocking drive mechanism as described above. The support frame 7 is rotatably connected to the base 6, and the rocking drive mechanism is disposed between the base 6 and the support frame 7. Various seat cushions and backrests can be provided on the support frame 7 according to specific requirements, so as to realize the electric and manual switching functions of various rocking chairs. The specific switching principle is as described above and will not be elaborated here.

[0034] For the consideration of stability, the mounting seat 1 can be fixedly arranged on the base 6, and the iron plate is arranged on the support frame 7 to prevent components such as the reduction motor on the mounting seat from rocking.

[0035] The support frame 7 specifically includes two support rods 71, a support rod 72 provided at the upper end of each support rod 71, and a synchronous connection frame 73 connecting the two support rods 72. The ferromagnetic transmission member 5 is arranged on the synchronous connection frame 73. The synchronous connection frame 73 ensures that the two groups of support rods 71 and support rods 72 can move synchronously, ensuring the stability of the rocking chair's movement. A first connecting rod 74 is rotatably connected between the lower end of the support rod 71 and the right end of the base 6. Between the left end of the base 6 and the left end of the support rod 72, there are sequentially rotatably connected a second connecting rod 75, a third connecting rod 76, a fourth connecting rod 77, and a fifth connecting rod 78. A reinforcing rod 79 is also arranged between the two second connecting rods 75 to realize the stable rocking of the support frame 7.

[0036] The synchronous connection frame 73 includes two bent vertical rods 731 respectively connecting the two support rods, and a mounting cross bar 732 connecting the lower ends of the two bent vertical rods 731. The ferromagnetic transmission member 5 is arranged on the mounting cross bar 732. Among them, the setting of the bent vertical rod 731 enables the mounting cross bar 732 to be close to the middle and lower parts to avoid the base, and at the same time provides more space for setting the seat cushion.

[0037] Embodiment 3

[0038] This embodiment provides a rocking chair, which includes a rocking chair chassis as described above, a seat cushion and a backrest arranged on the rocking chair chassis. Its working principle is as described above and will not be elaborated here.

[0039] The above is only the preferred specific embodiment of the present invention. This specific embodiment is a realization method based on the overall concept of the present invention, and the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A swing drive mechanism, characterized in that, The invention comprises a mounting seat, a driving device arranged on the mounting seat, a swing rod connected to the output end of the driving device, an electromagnet arranged at the swing end of the swing rod, and a ferromagnetic transmission part cooperating with the electromagnet. When the electromagnet is energized, it adsorbs the ferromagnetic transmission part to perform synchronous swinging motion.

2. The swing drive mechanism according to claim 1, wherein The driving device is a reduction motor, a driving member is provided at the output end of the reduction motor, the swing rod is rotatably connected to the mounting seat, and a transmission rod is rotatably connected between the eccentric part of the driving member and the swing rod.

3. The swing drive mechanism according to claim 1, wherein, The side area of the ferromagnetic transmission part matching with the electromagnet is larger than the side area of the electromagnet.

4. A swing drive mechanism according to claim 1, characterized in that, A reset piece is arranged between the side of the swing rod facing away from the electromagnet and the mounting seat.

5. A swing drive mechanism according to claim 1, characterized in that, The drive device and the electromagnet are electrically connected to the same switch.

6. A rocking chair chassis, characterized in that, It comprises a base, a support frame, and a swing drive mechanism as described in any one of claims 1 to 5, wherein the support frame is rotatably connected to the base, and the swing drive mechanism is arranged between the base and the support frame.

7. The rocking chair chassis according to claim 6, wherein, The mounting seat is arranged on the base, and the ferromagnetic transmission component is arranged on the supporting frame.

8. A rocking chair chassis according to claim 7, characterized in that, The support frame comprises two support rods, a supporting rod arranged at the upper end of each support rod, and a synchronous connecting frame connecting the two supporting rods, and the ferromagnetic transmission member is arranged on the synchronous connecting frame.

9. The rocking chair chassis according to claim 8, characterized in that, The synchronous connecting frame comprises two bent vertical rods respectively connected to the two supporting rods, and a mounting cross rod connecting the lower ends of the two bent vertical rods, and the ferromagnetic transmission member is arranged on the mounting cross rod.

10. A rocking chair, characterized in that, The invention comprises a rocking chair base frame as claimed in any one of claims 6 to 9, and a seat and a backrest arranged on the rocking chair base frame.

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