Synchronous driving mechanism for massage chair manipulator

Abstract

The utility model relates to the technical field of massage chairs, in particular to a synchronous driving mechanism for a massage chair manipulator, which comprises a driving shaft and a driving piece for driving the manipulator, the driving piece is meshed with the driving shaft through a gear, and the driving shaft comprises a first driving shaft and a second driving shaft which are connected with each other. The driving piece is in meshing transmission with the first driving shaft, the second driving shaft is matched with the first driving shaft in a folding and winding mode through a folding and winding assembly, and the folding and winding assembly comprises a universal joint connecting piece with the two ends rotationally connected with the first driving shaft and the second driving shaft correspondingly. The universal joint connecting piece is used for the first driving shaft and the second driving shaft to be folded and wound and can enable the first driving shaft and the second driving shaft to slide in the length direction of the universal joint connecting piece so as to adjust the connecting distance between the first driving shaft and the second driving shaft. The bending mechanism has the advantages that the driving shaft can be bent when walking on the S-shaped track of the massage chair, and the driving shaft can still transmit torque to the mechanical arm transmission shaft in the forward direction when in the bent state so as to drive the mechanical arm.

Description

Technical Field

[0001] The utility model relates to the technical field of massage chairs, in particular to a synchronous driving mechanism for a massage chair manipulator. Background Art

[0002] In view of the brittle bones of the elderly, the massage components on the massage chair need to move on the S-shaped guide rail, and the bottom plate needs to bend adaptively along with the S-shaped guide rail. However, although the existing bottom plate can achieve the bending effect, it cannot transmit the driving torque of the transmission shaft in the positive direction after bending, so that the transmission force can be transmitted to the massage components after bending, thereby realizing normal transmission of the massage components at different bending angles.

[0003] The existing utility model patent with patent number 201810035215.5 involves a floating massage device, including a track frame and a massage movement, a driving shaft is set at one end of the bottom plate of the massage movement, and a following shaft is set at the other end; track wheels are set at both ends of the driving shaft and the following shaft, and they are slidably positioned on the tracks on both sides of the frame with the help of the track wheels; gears are also set on the side of the pair of track wheels of the driving shaft, and the gears are meshed with the racks on the side of the track, and the gears are driven by the power on the massage movement to move up and down along the track; it is characterized in that a floating mechanism is set between the following shaft and the bottom plate, and one end of the massage movement is lifted by the floating mechanism. Driven by the floating mechanism, the massage movement of the utility model can float to a greater extent, which can not only touch the more concave cervical vertebrae and waist, but also has a specific and gentle acupressure function. With the walking drive, it can perform fixed-point acupressure and walking sand scraping. Combining massage movements with different functions can achieve more diverse massage methods.

[0004] However, although this patent realizes floating massage, it cannot transmit torque to the massage component when the drive shaft and the base plate are folded to achieve normal operation of the massage component. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a driving shaft that can be bent when walking on the S-shaped track of the massage chair, and the driving shaft can still transmit torque to the manipulator transmission shaft in the bent state, thereby transmitting the upper and lower synchronous driving mechanism of the manipulator.

[0006] In order to achieve the above-mentioned purpose, the following technical scheme is adopted: a synchronous drive mechanism for a massage chair manipulator, including a drive shaft and a drive member for transmitting the manipulator, the drive member transmits the drive shaft through gear meshing, the drive shaft includes a first drive shaft and a second drive shaft connected to each other, the drive member meshes and transmits the first drive shaft, the second drive shaft is folded and matched with the first drive shaft through a winding assembly, the winding assembly includes a universal joint connecting member with two ends respectively connected to the first drive shaft and the second drive shaft for rotation, the universal joint connecting member is for the first drive shaft and the second drive shaft to be folded and can make the first drive shaft and the second drive shaft slide along the length direction of the universal joint connecting member to adjust the connection distance between the two.

[0007] By adopting the above technical solution, since the guide rail of the massage chair has a certain curvature and the back of the human body also has a certain curvature, the bottom plate can be used to install the drive shaft, the drive member and the massage chair manipulator, the bottom plate is synchronously folded with the drive shaft, the drive member is a gear transmission structure of a motor and a worm gear, when the first drive shaft and the second drive shaft are kept on the same axis, the first drive shaft rotates through the gear meshing of the driven member to transmit the driving torque to the second drive shaft, when the bottom plate reaches the curved end of the massage chair guide rail, the folding of the bottom plate also causes the first drive shaft and the second drive shaft to be folded, due to the setting of the universal joint connecting member in the folding assembly, the drive member can drive the first drive shaft The driving torque is transmitted to the second driving shaft, and the bending directions of the driving shaft and the base plate are consistent, so that the folding does not affect the transmission of the driving torque, so that the driving shaft can still rotate the manipulator transmission shaft in the folded state, so that the manipulator on the massage chair can work normally, and the torque transmission will not be affected by the synchronous folding of the driving shaft and the base plate in the same direction, which can better adapt to the S-shaped guide rail and better fit the massage parts of the human body. Since the length of the driving shaft after bending is slightly longer than the unbent length, it is necessary to adjust the connection distance between the first driving shaft and the second driving shaft through the folding assembly. After the adjustment, the driving torque of the first driving shaft can be normally transmitted to the second driving shaft.

[0008] A synchronous drive mechanism for a massage chair manipulator can be further configured as follows: a first rotating groove is provided at both ends of the universal joint connecting piece, a universal part is provided in the first rotating groove, the universal joint connecting piece is provided with a slide groove at both ends in the vertical direction of the first rotating groove, a first limit pin is provided in the slide groove, which passes through the universal part and is limitedly abutted against the outer wall of the universal joint connecting piece at both ends, and the first limit pin slides in the length direction of the slide groove and realizes the adjustment of the distance between the first drive shaft and the second drive shaft.

[0009] By adopting the above technical scheme, since the driving shaft and the base plate are folded, the driving shaft is generally located on the side away from the back of the human body, that is, close to the guide rail, so the overall length after bending is longer than the length of the first transmission shaft and the second transmission shaft. Therefore, the length of the first driving shaft and the second driving shaft also needs to be adaptively increased through the slide groove. When the base plate is folded and returned to a plane, the length of the first driving shaft and the second driving shaft also needs to be adaptively shortened through the slide groove. At the same time, the universal joint allows the first driving shaft and the second driving shaft to be folded up and down or left and right, so that the first driving shaft and the second driving shaft can adapt to the multi-angle folding of the base plate at any time, and the first limit pin slides in the slide groove to achieve adaptive extension and shortening. At the same time, the first limit pin passes through the positioning member and can rotate in the universal joint, so that it can be folded at multiple angles. At the same time, the two ends are fixed to prevent the universal joint from falling out during rotation, thereby increasing the stability during rotation and the adaptability to the folding angle of the base plate.

[0010] A synchronous drive mechanism for a massage chair manipulator can be further configured as follows: one end where the first drive shaft, the second drive shaft and the universal joint connecting piece are connected is provided with a second rotation groove located in a vertical direction of the first rotation groove, and both ends of the second rotation groove in the vertical direction are respectively penetrated by second limit pins inserted and fixed with the universal joint.

[0011] By adopting the above technical solution, the second limit pin can limit the first drive shaft and the second drive shaft at the vertical position of the first limit pin and can also rotate. The second limit pin can be set to two. Since the middle part of the universal joint has been passed through by the first limit pin, the second limit pin does not completely pass through the universal joint, but is inserted into a part of the universal joint to complete the limiting. The first limit pin and the second limit pin can realize the multi-angle folding of the first drive shaft and the second drive shaft along the base plate.

[0012] A synchronous drive mechanism for a massage chair manipulator can be further configured as follows: first limit slots for setting a first limit pin are penetrated and opened on both sides of the universal member, and second limit slots for inserting and fixing a second limit pin are opened at both ends of the universal member in the vertical direction of the first limit slot.

[0013] By adopting the above technical solution, the first limit groove is provided for the first limit pin to pass through, and the two ends of the first limit pin can be limited on the outer wall of the universal joint connector by washers or protrusions, thereby preventing the first limit pin from slipping out of the slide groove when in use. The first limit pin slides horizontally in the slide groove so that the first drive shaft and the second drive shaft can adjust the connection distance even in the folded state, so that the drive shaft can better adapt to the multi-angle folding of the base plate, so that the driving torque of the drive shaft can be normally transmitted to the transmission shaft of the manipulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of an embodiment of the utility model.

[0015] Figure 2 For the utility model embodiment Figure 1 Schematic diagram of the connection structure of the middle drive shaft.

[0016] Figure 3 For the utility model embodiment Figure 2 Enlarged view of part A in .

[0017] Figure 4 For the utility model embodiment Figure 3 Schematic diagram of the structure of the universal joint connection.

[0018] Figure 5 For the utility model embodiment Figure 3 Schematic diagram of the structure of the universal joint.

[0019] Figure 6 This is a diagram showing the use status of the drive shaft on the massage chair manipulator in an embodiment of the utility model.

[0020] In the figure: 1, driving shaft; 2, driving member; 4, folding assembly; 11, first driving shaft; 12, second driving shaft; 41, universal joint connecting member; 42, first rotating groove; 43, universal member; 44, sliding groove; 45, first limiting pin; 46, second rotating groove; 47, second limiting pin; 48, first limiting groove; 49, second limiting groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example: Figure 1-Figure 6A synchronous drive mechanism for a massage chair manipulator shown in the figure comprises a drive shaft 1 and a drive member 2 for driving the manipulator, the drive member 2 drives the drive shaft 1 through gear meshing, the drive shaft 1 comprises a first drive shaft 11 and a second drive shaft 12 connected to each other, the drive member 2 meshes and drives the first drive shaft 11, the second drive shaft 12 is folded and matched with the first drive shaft 11 through a folding assembly 4, the folding assembly 4 comprises a universal joint connecting member 41 with two ends respectively connected to the first drive shaft 11 and the second drive shaft 12 for rotation, the universal joint connecting member 41 is used for the first drive shaft 11 and the second drive shaft 12 to be folded and can make the first drive shaft 11 and the second drive shaft 12 slide along the length direction of the universal joint connecting member 41 so as to adjust the connection distance between the two, as shown in FIG. Figure 3 and Figure 4 As shown, the universal joint connecting member 41 is provided with a first rotation groove 42 at both ends, and a universal member 43 is arranged in the first rotation groove 42. The universal joint connecting member 41 is provided with a slide groove 44 at both ends in the vertical direction of the first rotation groove 42. A first limiting pin 45 is arranged in the slide groove 44, which passes through the universal member 43 and is limitedly abutted against the outer wall of the universal joint connecting member 41 at both ends. The first limiting pin 45 slides in the length direction of the slide groove 44 and adjusts the first drive shaft and the second drive shaft. The first drive shaft 11 and the second drive shaft 12 are connected to the universal joint connecting member 41 at one end and are provided with a second rotation groove 33 located in the vertical direction of the first rotation groove 42. The second limiting pins 47 inserted and fixed with the universal member 43 are respectively penetrated at both ends in the vertical direction of the second rotation groove 33. The universal member 43 is penetrated with a first limiting groove 48 on both sides for setting the first limiting pin 45. The universal member 43 is provided with a second limiting groove 49 at both ends in the vertical direction of the first limiting groove 48 for inserting and fixing the second limiting pin 47. Figure 6As shown, since the guide rail of the massage chair has a certain curvature, the back of the human body also has a certain curvature, the bottom plate can be used to install the drive shaft 1 and the massage manipulator, and fold synchronously with the drive shaft 1, and the first drive shaft 11 and the second drive shaft 12 are maintained on the same axis. At this time, the drive shaft 1 transmits the driving torque to the transmission shaft of the massage manipulator by rotating. A universal joint connector 41 can also be provided on the transmission shaft of the manipulator, and is limited by the bottom plate so as to rotate synchronously. At this time, it is normal transmission. When the bottom plate is bent along the winding structure 3 along the S-shaped guide rail of the massage chair, the first drive shaft 11 and the second drive shaft 12 are also bent along the winding structure 3 and through the winding assembly 4. Similarly, the bottom plate and the manipulator transmission shaft on the bottom plate are also bent accordingly. At this time, the driving end of the drive shaft 1 and the driven end of the manipulator transmission shaft are in the same plane. At this time, the drive shaft 1 synchronously drives the manipulator transmission shaft, and the bending directions of the two are consistent, so that the driving torque will not be unable to be transmitted normally, so that the drive shaft 1 can be in the folded state. The state can still make the manipulator transmission shaft rotate so that the manipulator on the massage chair can work normally. The torque transmission will not be affected by the same direction synchronous folding of the drive shaft 1, the base plate, and the manipulator transmission shaft. It can better adapt to the S-shaped guide rail and better fit the massage parts of the human body. Therefore, the drive shaft 1 is adapted to the S-shaped guide rail of the massage chair and then bends following the base plate, thereby driving the manipulator transmission shaft to bend synchronously. At the same time, the transmission ends of the two will not cause the torque to be unable to be transmitted due to bending. Therefore, the transmission end of the manipulator transmission shaft and the transmission end of the drive shaft 1 are in the upper and lower positions of the same plane, and because when the drive shaft 1 is bent, the bent length is slightly longer than the unbent length, it is necessary to adjust the connection distance between the first drive shaft 11 and the second drive shaft 12 at the universal joint connection 44. After adjustment, the driving torque of the drive shaft 1 can be normally transmitted to the manipulator transmission shaft. The drive shaft 1 and the manipulator transmission shaft can be transmitted through a belt, thereby transmitting the manipulator for massage, and the massage manipulator is driven by two sets of transmission shafts.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A synchronous drive mechanism for a massage chair manipulator, comprising a drive shaft (1) for driving the manipulator and a drive member (2), wherein the drive member (2) drives the drive shaft (1) to rotate, and is characterized in that: The drive shaft (1) comprises a first drive shaft (11) and a second drive shaft (12) which are connected to each other. The second drive shaft (12) is folded and matched with the first drive shaft through a folding assembly (4). The folding assembly (4) comprises a universal joint connecting member (41) whose two ends are respectively rotatably connected to the first drive shaft (11) and the second drive shaft (12). The universal joint connecting member (41) allows the first drive shaft (11) and the second drive shaft (12) to be folded and enables the first drive shaft (11) and the second drive shaft (12) to slide along the length direction of the universal joint connecting member (41) so as to adjust the connection distance between the two.

2. The synchronous drive mechanism for a massage chair manipulator according to claim 1, characterized in that: The universal joint connecting member (41) is provided with first rotation grooves (42) at both ends, a universal member (43) is provided in the first rotation groove (42), the universal joint connecting member (41) is provided with slide grooves (44) at both ends in a vertical direction of the first rotation groove (42), a first limit pin (45) is provided in the slide groove (44) which passes through the universal member (43) and is limitedly abutted against an outer wall of the universal joint connecting member (41) at both ends, the first limit pin (45) slides in the length direction of the slide groove (44) and adjusts the distance between the first drive shaft (11) and the second drive shaft (12).

3. The synchronous drive mechanism for a massage chair manipulator according to claim 2, characterized in that: One end of the first drive shaft (11), the second drive shaft (12) connected to the universal joint connecting member (41) is provided with a second rotation groove (33) located in a vertical direction of the first rotation groove (42), and both ends of the second rotation groove (33) in the vertical direction are respectively penetrated by second limit pins (47) inserted and fixed to the universal joint member (43).

4. A synchronous drive mechanism for a massage chair manipulator according to claim 2 or 3, characterized in that: The universal member (43) has first limit slots (48) formed on both sides thereof for the first limit pin (45) to be arranged therein, and the universal member (43) has second limit slots (49) formed on both ends of the first limit slot (48) in a vertical direction for the second limit pin (47) to be inserted and fixed therein.

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