A massage movement structure for a seat

Abstract

A new massage movement structure for a seat comprises a movement body, the movement body comprises a driving mechanism, an eccentric wheel mechanism, a connecting rod mechanism and a massage adjustment mechanism; the action end of the driving mechanism is connected to the eccentric wheel mechanism, and the eccentric wheel mechanism can be rotatably set through the driving mechanism; the connecting rod mechanism is composed of a plurality of connecting rods hinged in pairs to form a closed loop, the massage adjustment mechanism comprises a plurality of massage wheels and a massage shaft connected to the massage wheels, the massage shaft is inserted into the connection point between two adjacent connecting rods of the connecting rod mechanism, and the massage shaft is connected to the eccentric wheel mechanism; the new massage movement structure for a seat designed in this scheme adopts the cooperation of the eccentric wheel mechanism and the multi-connecting rod mechanism to enable the massage head to realize four-way reciprocating motion in the vertical direction, reduce the use of the motor, reduce the overall volume of the movement, achieve reciprocating massage of multiple massage heads, increase the massage area, and multiple massage heads can be linked to simulate the grasping and pinching action of human hands to improve the massage comfort.

Description

Technical Field

[0001] The invention belongs to the technical field of massage equipment structure design, and in particular relates to a massage movement structure for a seat. Background Art

[0002] As people's living standards continue to improve, sofas and office chairs with massage functions have become the first choice for some office workers and business people. Due to long-term high-intensity work and long-term sitting, back pain occurs. Sofas and office chairs with massage functions can automatically massage and relieve fatigue.

[0003] At present, there are varying degrees of quality of automatic massage chairs on the market, and there are many defects, which are mainly reflected in the following aspects: 1) Size: Existing massage products are generally large in size and difficult to be directly integrated into furniture such as sofas or office chairs. For example, the backrests of office chairs are generally thin, while existing massage products are relatively thick; 2) Strength: Existing massage products are mainly made of plastic parts and lack adaptive strength adjustment mechanisms, which can easily cause damage when used in furniture such as office chairs and sofas; 3) Comfort: Existing massage products have a single massage head with a single massage action, and the massage heads cannot be linked together, resulting in poor massage comfort.

[0004] Therefore, it is necessary to design a massage movement structure for a seat to solve the technical problems of the above-mentioned solution. Summary of the invention

[0005] In order to overcome the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a massage movement structure for a seat.

[0006] To achieve the above-mentioned purpose and other related purposes, the technical solution provided by the present invention is: a massage movement structure for a seat, including a movement body, the movement body including a driving mechanism, an eccentric wheel mechanism, a connecting rod mechanism and a massage adjustment mechanism; the action end of the driving mechanism is connected to the eccentric wheel mechanism, and the eccentric wheel mechanism is rotatably arranged through the driving mechanism; the connecting rod mechanism is composed of a plurality of connecting rods hinged in pairs to form a closed loop, the massage adjustment mechanism includes a plurality of massage wheels and a massage shaft connected to the massage wheels, the massage shaft is inserted into the connection point between two adjacent connecting rods of the connecting rod mechanism, and the massage shaft is connected to the eccentric wheel mechanism.

[0007] Preferably, the driving mechanism includes a motor, and the motor is arranged corresponding to the gear shaft transmission mechanism. The gear shaft transmission mechanism includes a driving gear, a driven gear and a rotating shaft. The driving gear is fixedly sleeved on the output shaft of the motor, and the driven gear is meshed with the driving gear. The driven gear is fixedly sleeved on the rotating shaft.

[0008] Preferably, the eccentric wheel mechanism includes an eccentric wheel, a bearing, a bearing seat, a first sheet metal and a second sheet metal, the inner ring of the bearing is installed on the eccentric wheel, the outer ring of the bearing is installed in the bearing seat, the first sheet metal connects the eccentric wheel and the inner ring of the bearing, the second sheet metal connects the bearing seat and the outer ring of the bearing, and the eccentric wheel is fixedly connected to the rotating shaft.

[0009] Preferably, the massage adjustment mechanism also includes a compression spring, a mounting support seat and a retaining spring, the massage wheel is rotatably arranged on the upper end of the massage shaft, the compression spring is sleeved on the massage shaft and is located at the bottom of the massage wheel; the bottom of the massage shaft passes through the connection point between two adjacent connecting rods of the connecting rod mechanism and is fixedly mounted on the mounting support seat through the retaining spring.

[0010] Preferably, the massage adjustment mechanism also includes a guide shaft and a sleeve, one end of the guide shaft is provided with a mounting hole, the massage shaft is arranged through the mounting hole, the other end of the guide shaft is movably arranged inside the sleeve, and the sleeve is fixedly mounted on the base.

[0011] Preferably, a connecting hole is provided on the bearing seat of the eccentric wheel mechanism, and the massage shaft passes through the connecting hole of the bearing seat, the connecting point between two adjacent connecting rods, and the mounting hole provided on the guide shaft at the same time.

[0012] Preferably, the linkage mechanism is a four-bar linkage structure.

[0013] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0014] This scheme designs a massage movement structure for a seat.

[0015] 1) The eccentric wheel mechanism and the multi-link mechanism are used to make the massage head realize four-way reciprocating motion in the vertical direction, which reduces the use of motors and the overall volume of the movement, achieves reciprocating massage of multiple massage heads, increases the massage area, and multiple massage heads can be linked to simulate the grasping and kneading actions of human hands to improve massage comfort.

[0016] 2) The massage head rotates radially around the massage axis and moves up and down axially under the action of the compression spring. This allows the massage wheel to freely adjust its height according to the back curve of the human body, while traditional massage wheels do not have adaptive spring adjustment. They are in hard contact with the human body and the massage comfort is poor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the massage movement.

[0018] Figure 2 This is the partial structure and schematic diagram of the massage movement.

[0019] Figure 3 Schematic diagram of the driving mechanism.

[0020] Figure 4 Schematic diagram of the gear shaft transmission mechanism.

[0021] Figure 5 Schematic diagram of the eccentric wheel mechanism.

[0022] Figure 6 It is a schematic diagram of the massage adjustment mechanism.

[0023] In the above drawings, the driving mechanism 1, the eccentric wheel mechanism 2, the connecting rod mechanism 3, the massage adjustment mechanism 4, the gear shaft transmission mechanism 5, the base 6,

[0024] Motor 11,

[0025] Eccentric wheel 21, bearing 22, bearing seat 23, first sheet metal 24, second sheet metal 25,

[0026] Connecting rod 31,

[0027] Massage wheel 41, massage shaft 42, compression spring 43, mounting support seat 44, retaining spring 45, guide shaft 47, shaft sleeve 48,

[0028] Driven gear 51 and rotating shaft 52 . DETAILED DESCRIPTION

[0029] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0030] See also Figure 1 to Figure 6 . It should be noted that in the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invented product is usually placed when in use. They are only for the convenience of describing the present invention 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, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third" and the like are only used to distinguish the descriptions, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] like Figure 1 ~ Figure 2 A massage movement structure for a seat includes a movement body, wherein the movement body includes a driving mechanism 1, an eccentric wheel mechanism 2, a connecting rod mechanism 3 and a massage adjustment mechanism 4; the action end of the driving mechanism 1 is connected to the eccentric wheel mechanism 2, and the eccentric wheel mechanism 2 is rotatably arranged through the driving mechanism 1; the connecting rod mechanism 3 is composed of a plurality of connecting rods 31 hinged in pairs to form a closed loop, and the massage adjustment mechanism 4 includes a plurality of massage wheels 41 and a massage shaft 42 connected to the massage wheels 41, and the massage shaft 42 is inserted into the connection point between two adjacent connecting rods 31 of the connecting rod mechanism 3, and the massage shaft 42 is connected to the eccentric wheel mechanism 2; The new seat massage movement structure designed in this scheme adopts the cooperation of eccentric wheel mechanism 2 and multi-link mechanism 3, and sets the massage head on the node where the two rods of the link mechanism 3 move. Then, the rotation of the eccentric wheel mechanism 2 drives the link mechanism 3 to operate, so that the massage head can realize four-way reciprocating motion in the vertical direction, thereby achieving reciprocating massage of multiple massage heads, increasing the massage area, and multiple massage heads can be linked to simulate the grasping and pinching action of human hands.

[0033] The preferred embodiment is: Figure 3 and Figure 4 As shown, the driving mechanism 1 includes a motor 11, and the motor 11 is correspondingly arranged with a gear shaft transmission mechanism 5. The gear shaft transmission mechanism 5 includes a driving gear, a driven gear 51 and a rotating shaft 52. The driving gear is fixedly sleeved on the output shaft of the motor 11, and the driven gear 51 is meshed with the driving gear. The driven gear 51 is fixedly sleeved on the rotating shaft 52; the motor 11 rotates and transmits through the gear set to make the rotating shaft 52 start to rotate. The rotating shaft 52 is also a transmission structure, which is mainly connected with the eccentric wheel mechanism 2, so as to achieve the function of the motor 11 driving the eccentric wheel to rotate.

[0034] The preferred embodiment is: Figure 5As shown, the eccentric wheel mechanism 2 includes an eccentric wheel 21, a bearing 22, a bearing seat 23, a first sheet metal 24 and a second sheet metal 25. The inner ring of the bearing 22 is installed on the eccentric wheel 21, and the outer ring of the bearing 22 is installed in the bearing 22 seat. The first sheet metal 24 connects the eccentric wheel 21 and the inner ring of the bearing 22, and the second sheet metal 25 connects the bearing 22 seat and the outer ring of the bearing 22. The eccentric wheel 21 is fixedly connected to the rotating shaft 52; the rotation of the rotating shaft 52 drives the eccentric wheel 21 to rotate, the bearing 22 acts on the eccentric wheel 21, and the bearing seat 23, the first sheet metal 24 and the second sheet metal 25 are fixedly installed in cooperation.

[0035] The preferred embodiment is: Figure 6 As shown, the massage adjustment mechanism 4 also includes a compression spring 43, a mounting support seat 44 and a retaining spring 45. The massage wheel 41 is rotatably arranged at the upper end of the massage shaft 42. The compression spring 43 is sleeved on the massage shaft 42 and located at the bottom of the massage wheel 41. The bottom of the massage shaft 42 passes through the connection point between two adjacent connecting rods 31 of the connecting rod mechanism 3 and is fixedly installed on the mounting support seat 44 through the retaining spring 45. When the massage head is subjected to force, it will perform radial rotation around the massage shaft 42, and the compression spring 43 will perform axial expansion and contraction. Thus, the massage wheel 41 can adapt to the human body curve. Make the massage more comfortable. The mounting support seat 44 is made of plastic. Steel or iron materials usually need to be welded when two parts are connected. In order to simplify the installation structure, the mounting support seat 44 made of plastic material can make the massage shaft 42 and the guide shaft 47 more convenient to install.

[0036] A preferred embodiment is as follows: the massage adjustment mechanism 4 also includes a guide shaft 47 and a sleeve 48, one end of the guide shaft 47 is provided with a mounting hole, the massage shaft 42 is arranged through the mounting hole, the other end of the guide shaft 47 is movably arranged inside the sleeve 48, and the sleeve 48 is fixedly mounted on the base 6; when the massage shaft 42 moves through the four-link mechanism 31, in order to ensure its stability during translation, the guide shaft 47 is set to limit the position, and the movement of the guide shaft 47 in the sleeve 48 can play a good limiting role on the massage shaft 42.

[0037] The preferred embodiment is as follows: a connecting hole is provided on the bearing seat 23 of the eccentric wheel mechanism, and the massage shaft 42 passes through the connecting hole of the bearing seat 23, the connecting point between two adjacent connecting rods, and the mounting hole provided on the guide shaft 47 at the same time; therefore, when the eccentric wheel rotates, it can drive the entire four-bar linkage 3 to start operating.

[0038] In summary, the beneficial effects of this embodiment are as follows: the eccentric wheel drives the hinge connection to perform 4-way reciprocating massage, simulating the grasping and pinching action of human hands, while the traditional massage mechanism can only perform swing massage, each massage wheel 41 is independent and cannot be linked, and the 4-way can also be changed to 2-way according to the needs of different customers; the massage head performs radial rotation around the axis, and performs axial up and down movement under the action of the compression spring 43, so that the massage wheel 41 can freely adjust the height according to the back curve of the human body. The traditional massage wheel 41 does not have an adaptive spring adjustment. It is in hard contact with the human body and the massage comfort is poor.

[0039] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A massage movement structure for a seat, characterized in that: The invention comprises a movement body, wherein the movement body comprises a driving mechanism, an eccentric wheel mechanism, a connecting rod mechanism and a massage adjustment mechanism; the action end of the driving mechanism is connected to the eccentric wheel mechanism, and the eccentric wheel mechanism is rotatably arranged by the driving mechanism; the connecting rod mechanism is a four-link structure, and the connecting rod mechanism is formed by four connecting rods hinged in pairs to form a closed loop; the massage adjustment mechanism comprises four massage wheels and a massage shaft connected to the massage wheels, the massage shaft is inserted into a connection point between two adjacent connecting rods of the connecting rod mechanism, and the massage shaft is connected to the eccentric wheel mechanism; The driving mechanism includes a motor, and the motor is correspondingly arranged with a gear shaft transmission mechanism, and the gear shaft transmission mechanism includes a driving gear, a driven gear and a rotating shaft, the driving gear is fixedly sleeved on the output shaft of the motor, the driven gear is meshed with the driving gear, and the driven gear is fixedly sleeved on the rotating shaft; The eccentric wheel mechanism comprises an eccentric wheel, a bearing, a bearing seat, a first sheet metal and a second sheet metal, wherein the inner ring of the bearing is mounted on the eccentric wheel, the outer ring of the bearing is mounted in the bearing seat, the first sheet metal connects the eccentric wheel and the inner ring of the bearing, the second sheet metal connects the bearing seat and the outer ring of the bearing, and the eccentric wheel is fixedly connected to the rotating shaft; The massage adjustment mechanism also includes a guide shaft and a sleeve. One end of the guide shaft is provided with a mounting hole, and the massage shaft is arranged through the mounting hole. The other end of the guide shaft is movably arranged inside the sleeve, and the sleeve is fixedly mounted on the base.

2. A massage mechanism structure for a seat according to claim 1, characterized in that: The massage adjustment mechanism also includes a compression spring, a mounting support seat and a retaining spring. The massage wheel is rotatably arranged at the upper end of the massage shaft. The compression spring is sleeved on the massage shaft and located at the bottom of the massage wheel. The bottom of the massage shaft passes through the connection point between two adjacent connecting rods of the connecting rod mechanism and is fixedly mounted on the mounting support seat through the retaining spring.

3. The massage mechanism structure for a seat according to claim 1, characterized in that: A connecting hole is provided on the bearing seat of the eccentric wheel mechanism, and the massage shaft passes through the connecting hole of the bearing seat, the connecting point between two adjacent connecting rods, and the mounting hole provided on the guide shaft at the same time.

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