Rhythm mechanism for rhythm bed

Abstract

The utility model belongs to the technical field of electric beds, and particularly discloses a rhythm mechanism for a rhythm bed, which comprises a support frame, a rhythm frame, a support plate, a gear motor, a driving belt pulley, a rotating seat, an eccentric shaft, a driven belt pulley, a belt and a sleeve. Reciprocating linear motion mechanisms are fixed to the upper end faces of the four corners of the supporting frame, and the rhythm frame is connected with the reciprocating linear motion mechanisms so that the rhythm frame can do reciprocating linear motion on the supporting frame. Compared with the prior art, the whole rhythm device is formed by assembling the supporting frame, the rhythm frame and part of the connecting pieces, the eccentric shaft is driven by the gear motor to rotate so as to drive the rhythm frame to generate a reciprocating rhythm effect along the reciprocating linear motion mechanism, and the whole structure is simple and convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of electric beds, in particular to a rhythm mechanism for a rhythm bed. Background Art

[0002] A parallel motion bed features a motion mechanism installed beneath the mattress, causing the mattress to vibrate in parallel motion. Conventional systems utilize a motor to drive multiple wheels, which in turn are driven by belts wrapped around the wheels to cause the mattress or the frame beneath it to swing back and forth in parallel motion. However, this method requires the motor-driven wheels to rotate in different directions to achieve the back-and-forth motion effect. In other words, when the motor-driven wheels rotate clockwise, the belts are driven forward by the wheels, causing the frame and mattress to move toward the head of the bed. When the motor-driven wheels rotate counterclockwise, the belts are driven backward by the wheels, causing the frame and mattress to move toward the foot of the bed, thus achieving a reciprocating motion.

[0003] Chinese patent application number CN201820719841.1 discloses a rhythmic device and a rhythmic bed, which include a motor, an eccentric wheel, a first pulley, a first belt, and a reciprocating mechanism. The motor and eccentric wheel are arranged on a fixed base of a supporting member. The eccentric wheel can be connected to the motor and driven by the motor to rotate about its eccentric axis. The first pulley is arranged on the rhythmic base of the supporting member. The first belt is wrapped around the eccentric wheel and the first pulley to connect the two. The reciprocating mechanism is arranged on the rhythmic base. When the eccentric wheel is driven by the motor to rotate, the first pulley and the rhythmic base to which the first pulley is connected can be connected by it. The reciprocating mechanism provides a restoring force to the rhythmic base in response to the above-mentioned connection.

[0004] However, the above structure is too complicated, and once damaged, it is troublesome to replace the parts, which is not suitable for mass production. Utility Model Content

[0005] The purpose of the utility model is to solve the deficiencies in the prior art and to provide a rhythm mechanism for a rhythm bed.

[0006] In order to achieve the above-mentioned purpose, the present invention is implemented according to the following technical solutions:

[0007] A rhythm mechanism for a rhythm bed, comprising a support frame, a rhythm frame is provided just above the support frame, a support plate is fixed to the center of the upper end surface of the support frame, a reduction motor is fixed on the support plate, a driving pulley is provided at the output end of the reduction motor, a rotating seat is fixed to the support plate at one end of the reduction motor, an eccentric shaft is rotatably mounted on the rotating seat, a driven pulley is provided at one end of the eccentric shaft, a belt is connected between the driving pulley and the driven pulley; a sleeve is sleeved in the middle of the eccentric shaft, a connecting rod is vertically connected to the outer wall of the sleeve, the end of the connecting rod is hinged on the rhythm frame, a reciprocating linear motion mechanism is fixed to the upper end surfaces of the four corners of the support frame, the rhythm frame is connected to the reciprocating linear motion mechanism to realize the reciprocating linear motion of the rhythm frame on the support frame.

[0008] Furthermore, the reciprocating linear motion mechanism includes a sliding sleeve fixed on the support frame, an optical axis movably assembled in the sliding sleeve, one end of the optical axis fixed below one end of the rhythmic frame, and the other end of the optical axis fixed below the other end of the rhythmic frame.

[0009] Furthermore, the end of the connecting rod is rotatably connected to a hinge seat arranged in the middle of the rhythmic frame through a pin.

[0010] Furthermore, the rhythmic frame includes a rectangular frame, and longitudinal support rods arranged along the width direction are provided at both ends of the rectangular frame. A transverse support rod is vertically connected between the longitudinal support rod and the inner side wall of the rectangular frame in the length direction, and the lower end face of the transverse support rod is vertically connected to a second longitudinal support rod, and the end of the connecting rod is hinged on the longitudinal support rod near the end of the connecting rod.

[0011] Furthermore, one end of the optical axis is fixed to the lower end surface of the longitudinal support rod, and the other end of the optical axis is fixed to the lower end surface of the second longitudinal support rod.

[0012] Compared with the existing technology, the utility model is assembled as a whole from a support frame, a rhythmic frame and some connecting parts. The eccentric shaft is driven to rotate by a reduction motor, thereby driving the rhythmic frame to produce a reciprocating rhythmic effect along the reciprocating linear motion mechanism. The entire structure is simple and easy to disassemble and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model.

[0014] Figure 2 Schematic diagram of the support frame structure.

[0015] Figure 3 This is a structural diagram of the rhythmic framework. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0017] like Figures 1 to 3 As shown, this embodiment exemplarily shows a rhythm mechanism for a rhythm bed, including a support frame 1, a rhythm frame 9 is provided just above the support frame 1, a support plate 2 is fixed to the center of the upper end surface of the support frame 1, and a reduction motor 3 is fixed on the support plate 2. Figure 1 As shown, the reduction motor 3 consists of a motor 31 (purchased directly on the market) and a reducer 32 (purchased directly on the market). The motor 31 and the reducer 32 are connected by a transmission belt. The output end of the reduction motor 3 is provided with a driving pulley 33. A rotating seat 4 is fixed on the support plate 2 at one end of the reduction motor 3. An eccentric shaft 5 is rotatably mounted on the rotating seat 4. A driven pulley 35 is provided at one end of the eccentric shaft 5. A belt 34 is connected between the driving pulley 33 and the driven pulley 35; a sleeve 6 is sleeved on the middle part of the eccentric shaft 5, and a connecting rod 7 is vertically connected to the outer wall of the sleeve 6. The end of the connecting rod 7 is hinged on the rhythmic frame 9, and a reciprocating linear motion mechanism 10 is fixed on the upper end surface of the four corners of the support frame 1. The rhythmic frame 9 is connected to the reciprocating linear motion mechanism 10 to realize the reciprocating linear motion of the rhythmic frame 9 on the support frame 1.

[0018] like Figure 3 As shown, the rhythmic frame 9 includes a rectangular frame 91, and both ends of the rectangular frame 91 are provided with longitudinal support rods 92 arranged along the width direction, and a transverse support rod 93 is vertically connected between the longitudinal support rod 92 and the inner side wall of the rectangular frame 91 in the length direction, and the lower end face of the transverse support rod 93 is vertically connected to the second longitudinal support rod 94, and the end of the connecting rod 7 is rotatably connected to the hinge seat 8 arranged in the middle of the longitudinal support rod 92 near the connecting rod 7 through the pin shaft 11; the reciprocating linear motion mechanism 10 includes a sliding sleeve 102 fixed on the support frame 1, and an optical axis 101 movably assembled in the sliding sleeve 102, one end of the optical axis 101 is fixed to the lower end face of the longitudinal support rod 92, and the other end of the optical axis 101 is fixed to the lower end face of the second longitudinal support rod 94.

[0019] When in use, start the motor 31, the motor 31 drives the reducer 32 to rotate, and the reducer 32 drives the eccentric shaft 5 to rotate through the belt 34. During the rotation of the eccentric shaft 5, the rhythmic frame 9 connected by the connecting rod 7 is forced to swing, and the rhythmic frame 9 is restricted on the support frame 1 through four reciprocating linear motion mechanisms 10, so that the rhythmic frame 9 can only swing horizontally back and forth parallel to the support frame 1, thereby producing a reciprocating rhythmic effect.

[0020] The technical solution of the present invention is not limited to the above-mentioned specific embodiments. Any technical deformation made according to the technical solution of the present invention falls within the protection scope of the present invention.

Claims

1. A rhythm mechanism for a rhythm bed, comprising a support frame, characterized in that: A rhythmic frame is provided just above the support frame, a support plate is fixed at the center of the upper end face of the support frame, a reduction motor is fixed on the support plate, a driving pulley is provided at the output end of the reduction motor, a rotating seat is fixed on the support plate at one end of the reduction motor, an eccentric shaft is rotatably installed on the rotating seat, a driven pulley is provided at one end of the eccentric shaft, a belt is connected between the driving pulley and the driven pulley; a sleeve is provided in the middle of the eccentric shaft, a connecting rod is vertically connected to the outer wall of the sleeve, and the end of the connecting rod is hinged on the rhythmic frame, and a reciprocating linear motion mechanism is fixed on the upper end faces of the four corners of the support frame, and the rhythmic frame is connected to the reciprocating linear motion mechanism to realize the reciprocating linear motion of the rhythmic frame on the support frame.

2. The rhythm mechanism for a rhythm bed according to claim 1, characterized in that: The reciprocating linear motion mechanism includes a sliding sleeve fixed on the support frame, an optical axis movably assembled in the sliding sleeve, one end of the optical axis fixed below one end of the rhythmic frame, and the other end of the optical axis fixed below the other end of the rhythmic frame.

3. The rhythm mechanism for a rhythm bed according to claim 1, characterized in that: The end of the connecting rod is rotatably connected to a hinge seat arranged in the middle of the rhythmic frame through a pin shaft.

4. The rhythm mechanism for a rhythm bed according to claim 2, characterized in that: The rhythmic frame includes a rectangular frame, and longitudinal support rods arranged along the width direction are provided at both ends of the rectangular frame. A transverse support rod is vertically connected between the longitudinal support rod and the inner side wall of the rectangular frame in the length direction. The lower end surface of the transverse support rod is vertically connected to a second longitudinal support rod, and the end of the connecting rod is hinged on the longitudinal support rod near the end of the connecting rod.

5. The rhythm mechanism for a rhythm bed according to claim 2, characterized in that: One end of the optical axis is fixed to the lower end surface of the longitudinal support rod, and the other end of the optical axis is fixed to the lower end surface of the second longitudinal support rod.

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