A novel threaded lifting mechanism for a massage head and a massage core.

Abstract

This utility model discloses a novel threaded lifting mechanism and massage core for a massage head. The lifting mechanism includes at least one reduction gear set, each of which includes several reduction gears that mesh sequentially. The reduction gear sets are arranged in an arc shape. This arc arrangement makes the power transmission path more consistent with the circular motion characteristics in mechanical principles. During power transmission, the meshing points of the reduction gears are distributed on the arc path, which can distribute the torque more evenly. Compared with a straight arrangement, the arc arrangement can reduce the impact and vibration caused by sudden changes in force during the meshing process of the reduction gears. In multi-stage arc-shaped reduction gear transmission, power can be transmitted more smoothly from the first reduction gear to the last reduction gear, reducing the deformation and wear of the reduction gears, reducing noise, and improving the efficiency and accuracy of transmission.

Description

Technical Field

[0001] This utility model relates to the field of massage mechanism technology, and in particular to a novel threaded lifting mechanism for a massage head and a massage mechanism. Background Technology

[0002] A reduction gear set is a mechanical device that adjusts speed through a combination of gears. It is commonly used in industrial machinery, transportation equipment, automation systems, and other fields. Massagers in daily life, which have the function of raising or lowering massage heads or walking massage mechanisms, are also usually equipped with reduction gear sets.

[0003] Existing reduction gear sets typically include several reduction gears arranged in a straight line or L-shape. For example, a coaxial multi-output servo motor published on December 28, 2021, with announcement number CN215318693U, uses a compact and reasonably arranged straight line arrangement for the meshing, installation, and spatial layout of the reduction gears to achieve the purpose of compact structure and miniaturization.

[0004] However, the following problems exist with the arrangement of the reduction gears: (1) During the meshing process, the force transmission direction of the linearly arranged reduction gears is unchanged, which can easily cause vibration of the system. This vibration will spread along the axial and radial directions of the reduction gears, resulting in noise in the entire transmission system; (2) In the linear arrangement, the force is transmitted along a straight line. When the power is transmitted from the first reduction gear to the last reduction gear, each intermediate reduction gear mainly bears the radial and axial forces from the two adjacent reduction gears. Due to the concentration of force, there is a risk of deformation, wear, or even breakage. If a reduction gear has a slight deviation due to installation error or wear, it will be transmitted and amplified along the straight line, causing the overall transmission to "go off track", resulting in vibration and noise; (3) The more reduction gears there are, the longer the total length of the linear arrangement, which increases the overall length of the equipment. There will be too much space left in other parts of the equipment, which will result in an insufficiently compact structural layout and a small degree of space miniaturization optimization. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a novel threaded lifting mechanism and massage core for a massage head, so as to solve the problems that the linear arrangement of the reduction gear structure is not compact enough, the degree of space miniaturization optimization is small, it is easy to generate noise, and the reduction gear is prone to deformation, wear or even breakage.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a novel threaded lifting mechanism for a massage head, the lifting mechanism comprising:

[0007] At least one reduction gear set, each of the reduction gear sets comprising a plurality of reduction gears meshing sequentially, the reduction gear sets being arranged in an arc shape;

[0008] At least one screw, with at least one reduction gear in each reduction gear set having a centrally screwed screw, and one end of the screw being provided with a massage head;

[0009] A driving component, which is used to drive the reduction gear set to rotate.

[0010] Preferably, the lifting mechanism further includes a worm gear and a worm, the reduction gear set includes a first reduction gear, at least one second reduction gear and at least one third reduction gear, the third reduction gear is centrally helically engaged with a screw, the driving component is a first motor, the output end of the first motor is fixedly connected to the worm, the worm meshes with the worm gear, the worm gear is coaxially rotatable with the first reduction gear, the first reduction gear meshes with the second reduction gear, the second reduction gear meshes with either the second reduction gear or the third reduction gear, the diameter of the second reduction gear is larger than the diameter of the first reduction gear, and the diameter of the second reduction gear is smaller than the diameter of the third reduction gear.

[0011] Preferably, the bottom end of the screw is provided with at least one limiting block, and a limiting part is provided on one side of the limiting block. The limiting part is provided with a limiting straight groove adapted to the limiting block along the length direction of the screw on the side opposite to the limiting block.

[0012] A massage mechanism includes a novel threaded lifting mechanism for the massage head, and a housing comprising a first lower housing and a first upper housing, wherein the massage head movably passes through the first upper housing.

[0013] Preferably, it also includes an arc-shaped outer shell, the reduction gear set is rotatably disposed inside the arc-shaped outer shell, the screw passes through the top surface of the arc-shaped outer shell and is fixedly connected to the massage head, and the driving component is fixed to the outer surface of the arc-shaped outer shell.

[0014] Preferably, the top surface of the first upper shell has two symmetrical notches, and a sealing plate adapted to the notch can be detachably fixed in the notch. The sealing plate is located around the massage head, and a heating plate is provided on the bottom surface of the sealing plate. The sealing plate has a plurality of heating holes.

[0015] Compared with the prior art, the beneficial effects that this utility model can achieve are:

[0016] (1) The reduction gear set is arranged in an arc shape. The arc shape makes the power transmission path more in line with the circular motion characteristics in the mechanical principle. During the power transmission process, the meshing point of the reduction gear is distributed on the arc path, which can distribute the torque more evenly. Compared with the straight arrangement, the arc arrangement can reduce the impact and vibration caused by the sudden change of force during the meshing process of the reduction gear. In the multi-stage arc reduction gear transmission, the power can be transmitted more smoothly from the first reduction gear to the last reduction gear, reducing the deformation and wear of the reduction gear, reducing noise, and improving the transmission efficiency and accuracy. In the arc arrangement, the axial force of adjacent reduction gears is partially canceled due to the angle difference, and the total axial force is significantly reduced, which can extend the service life of the reduction gear. The arc arrangement disperses the error through the arc, and the position deviation of adjacent reduction gears restricts each other, reducing the risk of resonance. The advantages are more obvious when there are a large number of reduction gears.

[0017] (2) The reduction gear set arranged in an arc shape will significantly shorten the overall length of the equipment compared with the reduction gear set arranged in a straight line for the same number of reduction gears. This greatly reduces the excess space in other parts of the equipment, making the internal structure of the equipment more compact and the space miniaturization optimization higher. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the second lower shell, lifting mechanism, and massage head structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the third reduction gear, screw, limiting block, and massage head of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the housing, sealing plate, massage head, and heating holes of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the first lower shell, the arc-shaped outer shell, the driving component, the circuit board, and the massage head of this utility model;

[0022] Figure 5 This is a schematic diagram of the sealing plate and heating plate structure of this utility model;

[0023] The components include: 1. Housing; 101. First lower housing; 102. First upper housing; 2. Arc-shaped outer shell; 201. Second lower housing; 202. Second upper housing; 3. Lifting mechanism; 301. Driving component; 302. Worm gear; 303. Worm wheel; 304. First reduction gear; 305. Second reduction gear; 306. Third reduction gear; 307. Screw; 308. Limiting block; 4. Massage head; 5. Sealing plate; 51. Heating and heat-penetrating hole; 6. Heating plate; 7. Circuit board. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model is further described below in conjunction with specific embodiments. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of this utility model.

[0025] like Figure 1 and Figure 2 As shown, this utility model provides a novel threaded lifting mechanism for a massage head. The lifting mechanism 3 includes: at least one reduction gear set, at least one screw 307, and a driving component 301.

[0026] Each reduction gear set includes several reduction gears that mesh sequentially, and the reduction gear sets are arranged in an arc shape;

[0027] At least one reduction gear center of each reduction gear set is helically engaged with a screw 307. One end of the screw 307 is provided with a massage head 4. The massage head 4 is detachably fixed to one end of the screw 307 by screwing.

[0028] Drive unit 301 is used to drive the reduction gear set to rotate;

[0029] By using a reduction gear set arranged in an arc shape, the power transmission path conforms more closely to the circular motion characteristics in mechanical principles. During power transmission, the meshing points of the reduction gears are distributed along the arc path, allowing for a more even distribution of torque. Compared to a straight arrangement, the arc arrangement reduces the impact and vibration caused by sudden force changes during meshing. In multi-stage arc-shaped reduction gear transmissions, power can be transmitted more smoothly from the first reduction gear to the last, reducing gear deformation and wear, lowering noise, and improving transmission efficiency and accuracy. In an arc arrangement, the axial force directions of adjacent reduction gears partially cancel each other out due to angular differences, significantly reducing the total axial force and extending the service life of the reduction gears. The arc arrangement disperses errors through curvature, and the positional deviations of adjacent reduction gears mutually constrain each other, reducing the risk of resonance, especially when there are a large number of reduction gears.

[0030] By using a gear set arranged in an arc shape, the overall length of the equipment will be significantly shortened compared to a gear set arranged in a straight line, for the same number of gears. This greatly reduces the excess space left in other parts of the equipment, making the internal structure of the equipment more compact and achieving a higher degree of space miniaturization and optimization.

[0031] By using an arc-shaped reduction gear set, the positions of certain components of the housing 1 can be avoided (such as the circuit board 7 inside the housing 1; if a straight reduction gear set is used, the overall length of the housing 1 will be increased), making the overall space arrangement more reasonable and reducing the overall size of the housing 1.

[0032] Specifically, the forward and reverse start-up drive component 301 can drive the reduction gear set to rotate, thereby driving the screw 307 to move vertically up and down, which in turn drives the massage head 4 to move up and down for massage.

[0033] like Figure 1 As shown, the lifting mechanism 3 also includes a worm gear 303 and a worm 302. The reduction gear set includes a first reduction gear 304, at least one second reduction gear 305 and at least one third reduction gear 306. The center of the third reduction gear 306 is screwed into a screw 307. The driving component 301 is a first motor. The output end of the first motor is fixedly connected to the worm 302. The worm 302 meshes with the worm gear 303. The worm gear 303 is coaxially and rotatably arranged with the first reduction gear 304. The first reduction gear 304 meshes with the second reduction gear 305. The second reduction gear 305 meshes with either the second reduction gear 305 or the third reduction gear 306. The diameter of the second reduction gear 305 is larger than the diameter of the first reduction gear 304, and the diameter of the second reduction gear 305 is smaller than the diameter of the third reduction gear 306.

[0034] Here, we take one first reduction gear 304, three second reduction gears 305, and one third reduction gear 306 as an example for explanation: The three second reduction gears 305 mesh sequentially, and the first reduction gear 304 and the third reduction gear 306 mesh with the second reduction gears 305 at both ends respectively. By starting the first motor in the forward direction, it drives the worm 302 to rotate. The worm 302 drives the two worm wheels 303 to rotate. The two worm wheels 303 drive one of the first reduction gears 304 to rotate. The first reduction gear 304 drives the second reduction gear 305 to rotate, and finally realizes the rotation of the third reduction gear 306, thereby driving the screw 307 to move vertically upward perpendicular to the second lower shell 201. Conversely, by starting the first motor in the reverse direction, the screw 307 can move vertically downward. Thus, by switching the first motor in the forward and reverse directions at a timer, the reciprocating lifting motion of the screw 307 can be realized, that is, the reciprocating lifting motion of the massage head 4 can be realized.

[0035] By setting the diameter of the second reduction gear 305 to be larger than that of the first reduction gear 304, and the diameter of the second reduction gear 305 to be smaller than that of the third reduction gear 306, the smaller diameter gear drives the larger diameter gear to rotate, thereby achieving a speed reduction effect and preventing the massage head 4 from reciprocating too quickly when the first motor is started.

[0036] like Figure 1 and Figure 2 As shown, at least one limiting block 308 is provided at the bottom end of the screw 307. A limiting part is provided on one side of the limiting block 308. A limiting straight groove adapted to the limiting block 308 is opened on the side of the limiting part facing the limiting block 308 along the length direction of the screw 307.

[0037] By setting the limit block 308 and the limit part with the limit groove, the guide limit is played, ensuring that the third reduction gear 306 can drive the screw 307 to move vertically and steadily when it rotates.

[0038] like Figure 3 As shown, a massage mechanism includes a novel threaded lifting mechanism 3 for a massage head 4, and a housing 1. The housing 1 includes a first lower housing 101 and a first upper housing 102. The massage head 4 moves through the first upper housing 102. When a human body (such as the feet) is on the first upper housing 102, the massage head 4 can be driven to reciprocate up and down by adjusting the lifting mechanism 3 to massage the human body.

[0039] like Figure 1 and Figure 4 As shown, it also includes an arc-shaped outer shell 2, in which the reduction gear set is rotatably located. This facilitates the separate installation of the reduction gear set, ensuring that it does not come into contact with other structures inside the housing 1. It also provides a further sealing effect, preventing dust and impurities from falling into the reduction gear set and affecting the normal transmission of the gears. The screw 307 passes through the top surface of the arc-shaped outer shell 2 and is fixedly connected to the massage head 4. The drive component 301 is fixed to the outer surface of the arc-shaped outer shell 2 (specifically, the side wall of the second lower shell 201).

[0040] Specifically, the arc-shaped outer shell 2 includes a second lower shell 201 and a second upper shell 202 that are detachably and fixedly connected, which facilitates the disassembly, repair or replacement of the reduction gear set inside the arc-shaped outer shell 2. The worm gear 303 is coaxially and rotatably mounted on the second lower shell 201 with the first reduction gear 304.

[0041] The length of the arc-shaped outer shell 2 can be controlled by the number of the second reduction gears 305, and the distance between the two massage heads 4 can also be controlled.

[0042] like Figure 3 and Figure 5 As shown, the top surface of the first upper shell 102 has two symmetrical notches, and a sealing plate 5 that is adapted to the notch can be detachably fixed in the notch (specifically, it can be fixed by screws). The sealing plate 5 is located around the massage head 4. The bottom surface of the sealing plate 5 is provided with a heating plate 6, and several heating holes 51 are provided on the sealing plate 5 (not actual countersunk holes, but similar to paint masking holes).

[0043] The separate sealing plate 5 allows for the separate processing of heating holes 51 and installation of heating plates 6 on the small sealing plate 5. With the heating plate 6 configured in this way, when a person's feet step on the first upper shell 102, the feet can be heated to achieve the function of heat therapy.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel threaded lifting mechanism of a massage head, characterized in that, The lifting mechanism (3) includes: At least one reduction gear set, each of the reduction gear sets comprising a plurality of reduction gears meshing sequentially, the reduction gear sets being arranged in an arc shape; At least one screw (307), at least one reduction gear center of each reduction gear set is helically engaged with the screw (307), and one end of the screw (307) is provided with a massage head (4); A drive unit (301) is used to drive the reduction gear set to rotate.

2. The novel threaded lifting mechanism of the massage head according to claim 1, characterized in that: The lifting mechanism (3) further includes a worm gear (303) and a worm (302). The reduction gear set includes a first reduction gear (304), at least one second reduction gear (305), and at least one third reduction gear (306). The third reduction gear (306) is centrally screwed into a screw (307). The driving component (301) is a first motor. The output end of the first motor is fixedly connected to the worm (302). The worm (302) meshes with the worm gear (303). The worm gear (303) is coaxially and rotatably arranged with the first reduction gear (304). The first reduction gear (304) meshes with the second reduction gear (305). The second reduction gear (305) meshes with either the second reduction gear (305) or the third reduction gear (306). The diameter of the second reduction gear (305) is larger than the diameter of the first reduction gear (304). The diameter of the second reduction gear (305) is smaller than the diameter of the third reduction gear (306).

3. The novel threaded lifting mechanism of the massage head as claimed in claim 1, wherein: The bottom end of the screw (307) is provided with at least one limiting block (308), and a limiting part is provided on one side of the limiting block (308). The limiting part is provided with a limiting straight groove adapted to the limiting block (308) along the length direction of the screw (307) on the side facing the limiting block (308).

4. A massaging movement, characterized in that: The novel threaded lifting mechanism including the massage head according to any one of claims 1-3 further includes a housing (1), the housing (1) including a first lower housing (101) and a first upper housing (102), the massage head (4) being movably inserted through the first upper housing (102).

5. The massing movement according to claim 4, characterized in that: It also includes an arc-shaped outer shell (2), the reduction gear set is rotatably disposed inside the arc-shaped outer shell (2), the screw (307) passes through the top surface of the arc-shaped outer shell (2) and is fixedly connected to the massage head (4), and the drive component (301) is fixed to the outer surface of the arc-shaped outer shell (2).

6. The massing movement according to claim 5, characterized in that: The top surface of the first upper shell (102) has two notches symmetrically opened. A sealing plate (5) adapted to the notch can be detachably fixed in the notch. The sealing plate (5) is located around the massage head (4). A heating plate (6) is provided on the bottom surface of the sealing plate (5). Several heating holes (51) are opened on the sealing plate (5).

Images