Back massage device

Abstract

The utility model relates to a massage device, in particular to a back massage device. The back massage device comprises a left track, a right track, an upper fixing plate, a lower fixing plate and two pairs of massage heads; the top ends and the lower ends of the left track and the right track are fixed to the upper fixing plate and the lower fixing plate respectively, and walking teeth for the massage device to move up and down are arranged on the inner sides of the tracks. The massage device is composed of a shell, a double-head motor and a gear set, and spiral teeth are arranged on two output shafts of the double-head motor. The device is characterized in that the gear set comprises a first duplicate gear, a second duplicate gear and a third duplicate gear; the helical teeth are meshed with helical teeth of upper teeth of the first duplicate gear, and lower teeth of the first duplicate gear drive lower teeth of the second duplicate gear; the upper teeth of the second duplicate gear drive the upper teeth of the third duplicate gear, and the lower teeth of the third duplicate gear are meshed with the track teeth; the rotating shaft of the second duplicate gear drives the massage head to rotate. The utility model has the advantages that the massage device is driven to walk and the massage head is driven to rotate by one gear set, the driving structure is simple, the production cost is low and the assembly is easy.

Description

Technical Field

[0001] The utility model relates to a massage device, in particular to a back massage device which performs up and down movement massage on the back. Background Art

[0002] Chinese utility model patent No. ZL202222161269.0 discloses a massage cushion with a parking position for use in theaters. The basic structure of this patent is: it consists of a massage device, two tracks, an upper fixed plate, a lower fixed plate, a position sensor, a control device and two pairs of massage heads. The top and bottom ends of the left and right tracks are respectively fixed to the upper fixed plate and the lower fixed plate to form a rectangular frame; on the inner side of the track, there are travel teeth that cooperate with the massage device for the massage device to move up and down; the massage device is composed of a shell, a double-headed motor D and a gear group, the shell is divided into a shell lower cover and a shell upper cover, and the gear group is divided into a massage gear group C1 and a travel gear group C2 (see Figure 1 ). The double-headed motor D drives the massage head through the output shaft of the massage gear set C1, which is used to drive the rotation of the massage head of the mobile massage device. The double-headed motor D is meshed with the track teeth through the travel gear set C2, so that the massage device moves up and down between the two tracks. The travel range of the massage device is divided into a massage area and a parking area, and the massage device is electrically connected to the position sensor and the control device.

[0003] When the massage mode is selected, the motor drives the massage device to move up and down in the massage area; if the massage device reaches the specified position of the position sensor, the position sensor sends a signal to the control device to control the massage device to move back and forth in the massage area. When the stationary mode is selected, the motor drives the massage device to reach the parking area of ​​the track and stop.

[0004] In the prior art, the disadvantages of the massage device are: two sets of independent gear sets are required to drive the rotation of the massage head and the movement of the massage device. Therefore, the driving structure is relatively complicated and the production cost is relatively high. Utility Model Content

[0005] The purpose of the utility model is to provide a device that can drive the massage head to rotate and the massage device to move by using only one set of gears. The gear set has a simple structure and low production cost.

[0006] The utility model is implemented as follows: a back massage device comprises a massage device, two left and right tracks, an upper fixing plate, a lower fixing plate, a position sensor, a control device and two pairs of massage heads; the top and lower ends of the left and right tracks are respectively fixed to the upper fixing plate and the lower fixing plate to form a rectangular frame structure; the inner sides of the left and right tracks are provided with running gears for the massage device to move up and down; the massage device is composed of a shell, a double-headed motor and two gear sets, and the shell is divided into a shell lower cover and a shell upper cover; the two output shafts of the double-headed motor are both provided with spiral teeth; characterized in that: the gear set includes a first double gear, a second double gear and a third double gear; the output shaft of the double-headed motor is a spiral tooth, the upper teeth of the first double gear are helical teeth, and the spiral teeth of the output shaft are meshed with the helical teeth of the upper teeth of the first double gear; the lower teeth of the first double gear and the lower teeth of the second double gear are both spur teeth, and the two are meshed with each other; the upper teeth of the second double gear and the upper teeth of the third double gear are both spur teeth, and the two are meshed with each other; the lower teeth of the third double gear are spur teeth, which are meshed with the traveling teeth on the inner side of the track, and the rotating shaft of the second double gear drives the massage head to rotate.

[0007] The utility model has the advantages that a group of massage gears are used to drive the massage head to rotate and the massage device to move; the driving structure is simple, the production cost is low, and the assembly is easy. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 : A schematic diagram of the structure of a driving gear set in the prior art;

[0009] Figure 2 : A schematic structural diagram of a back massage device of the utility model;

[0010] Figure 3 : An exploded view of the massage device of the utility model;

[0011] Figure 4: A schematic diagram of the structure of the gear set of the present invention; DETAILED DESCRIPTION

[0012] The utility model is a back massage device, which is composed of a massage device 1, two rails 2, an upper fixing plate 3, a lower fixing plate 4, a position sensor 5, a control device 6 and two pairs of massage heads 7. The top and bottom ends of the left and right rails 2 are respectively fixed to the upper fixing plate 3 and the lower fixing plate 4, and form a rectangular frame structure. Traveling teeth 20 for the massage device 1 to move up and down are provided on the inner side of the left and right rails 2. The travel range of the massage device 1 is divided into a massage area 21 and a parking area 22, and is electrically connected to the position sensor 5 and the control device 6. The control device 6 is arranged in an installation bin with a cover 15.

[0013] The massage device 1 is composed of a housing 11, a double-headed motor 12, two pairs of left and right gear sets 13 and two massage heads 7; the housing 11 is divided into a housing lower cover 11A and a housing upper cover 11B. The gear set 13 is composed of a first double gear 13A, a second double gear 13B, and a third double gear 13C, and is fixed by a first shaft 8, a second shaft 9 and a third shaft 10 respectively; wherein, the output shafts 121 and 122 on both sides of the double-headed motor 12 are provided with helical teeth, and the helical teeth are meshed with the helical teeth of the upper teeth of the respective first double gears 13A. The lower teeth of the first double gear 13A are meshed with the lower teeth of the second double gear 13B, and the power is output through the third shaft 10 to drive the massage head 7 to rotate. At the same time, the upper teeth of the second double gear 13B are meshed with the upper teeth of the third double gear 13C; and the lower teeth of the third double gear 13C are meshed with the running teeth of the track, which is used to drive the massage device 1 to travel. Two pulleys 16 are also provided on both sides of the housing lower cover 11A and fixed by a fixing plate 14. The pulleys 16 facilitate the sliding of the housing 11 in the massage area 21 on the track 2. The spur teeth of the lower teeth of the first double gear 13A mesh with the spur teeth of the lower teeth of the second double gear 13B, and the spur teeth of the upper teeth of the second double gear 13B mesh with the spur teeth of the upper teeth of the third double gear 13C. Among them, a second shaft 10 output of the second double gear 13B is used to drive the massage head 7 to rotate. The spur teeth of the lower teeth of the double gear 13C mesh with the travel teeth 20 on the inner side of the track 2 to drive the massage device 1 to move up and down in the massage area 21.

[0014] When the massage mode is selected, the double-headed motor 12 drives the massage device 1 to move up and down in the massage area 21. If the massage device 1 reaches the specified position of the position sensor 5, the position sensor 5 sends a signal to the control panel to control the massage device 1 to move in the massage area. When the stationary mode is selected, the double-headed motor 12 drives the massage device 1 to reach the parking area of ​​the track and stop.

Claims

1. A back massage device, comprising a massage device (1), two left and right rails (2), an upper fixing plate (3), a lower fixing plate (4), a position sensor (5), a control device (6) and two pairs of massage heads (7); the top and bottom ends of the left and right rails (2) are respectively fixed to the upper fixing plate (3) and the lower fixing plate (4) to form a rectangular frame structure; running gears for the massage device (1) to move up and down are provided on the inner sides of the left and right rails (2); the massage device (1) comprises a housing (11), a double-headed motor (12), and two sets of symmetrically arranged gear sets (13); the output shaft of the double-headed motor (12) is provided with a spiral tooth; the characteristics are as follows: The gear set (13) comprises a first double gear (13A), a second double gear (13B) and a third double gear (13C); the helical teeth at both ends of the double-headed motor (12) drive the upper teeth of the first double gear (13A), and the lower teeth of the first double gear (13A) drive the lower teeth of the second double gear (13B); the upper teeth of the second double gear (13B) drive the upper teeth of the third double gear (13C), and the lower teeth of the third double gear (13C) mesh with the travel teeth (20) of the track (2).

2. A back massage device according to claim 1, characterized in that: The upper teeth of the first duplex gear (13A) are helical teeth, and the lower teeth are straight teeth.

3. A back massage device according to claim 1, characterized in that: The upper and lower teeth of the second double gear (13B) and the third double gear (13C) are both straight teeth.

4. A back massage device according to claim 1, characterized in that: The output shaft of the second double gear (13B) is the second shaft (10) of the device, which is used to drive the massage head (7).

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