Motor with rotating shaft with multi-thread structure and massage machine core

Abstract

The utility model discloses a motor with a multi-thread structure rotating shaft and a massage machine core, which comprise a machine base, a power assembly is arranged in the machine base, the power assembly is in transmission connection with at least one rotating shaft, the outer surface of the at least one rotating shaft is provided with an external thread, the at least one external thread comprises at least two thread parts, and the at least two thread parts are arranged on the machine base. According to the motor with the rotating shaft of the multi-thread structure, the outer wall of the rotating shaft of the motor is provided with at least two thread parts with different thread pitches, so that transmission wheels with the same size can be driven to realize different transmission speeds; compared with an existing massage machine core, different transmission speeds are achieved by arranging transmission wheels of different sizes, the sizes of the transmission wheels do not need to be increased, and therefore the size of the massage machine core can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field especially a kind of motor with multi-thread structure rotating shaft and massage machine core. BACKGROUND

[0002] Motor (commonly known as "motor") refers to the electromagnetic device according to electromagnetic induction law realizes electric energy conversion or transmission, including power assembly such as stator, rotor, rotating shaft and base etc.

[0003] Motor is widely used in various fields, such as massage machine core is usually driven by motor as power source to drive massage head to carry out massage work, wherein part of the rotating shaft of motor in massage machine core is provided with external thread, to drive corresponding transmission wheel rotation, finally realizes massage.

[0004] At present, the external thread on the outer surface of the rotating shaft of the motor in the massage machine core is usually only provided with one pitch, if different massage effects are to be realized, different size transmission wheels need to be used, such as a worm gear speed reducer motor with publication number CN116131524A, by setting the first worm gear and the second worm gear with different number of teeth and different radii, different transmission speeds are realized, but this kind of way, when using worm gear with large radius, the volume of the whole massage machine core will be increased. SUMMARY

[0005] In order to overcome the shortcomings of the prior art, the utility model provides a kind of motor with multi-thread structure rotating shaft and massage machine core, to solve the problem that the volume of the whole massage machine core is relatively large by setting different size transmission wheels to realize different transmission speeds in the existing massage machine core.

[0006] To solve the above technical problems, the utility model provides the following technical scheme: a kind of motor with multi-thread structure rotating shaft, including base, the power assembly is arranged in the base, the power assembly is at least one rotating shaft transmission connection, at least one the external thread is provided on the outer surface of the rotating shaft, at least one the external thread includes at least two thread parts, and the pitch size of each thread part is different.

[0007] Preferably, the external thread includes first thread part and second thread part, and the pitch of the first thread part and the second thread part is 1mm-7mm.

[0008] Preferably, the pitch of the first thread part and the second thread part is 2mm-4.5mm.

[0009] Preferably, the pitch of the first thread part is 3mm-3.5mm, and the pitch of the second thread part is 2.2mm-2.8mm.

[0010] Preferably, the rotating shaft includes at least two rotating rods, one of which has a threaded portion of a certain pitch on its outer wall, and adjacent rotating rods are detachably and fixedly connected.

[0011] Preferably, one end of the rotating rod is provided with a threaded post, and the other end of the rotating rod opposite the threaded post is provided with a threaded hole adapted to the threaded post.

[0012] Preferably, the rotating shaft includes a first rotating rod and a second rotating rod, wherein the first threaded portion is formed on the outer wall of the first rotating rod and the second threaded portion is formed on the outer wall of the second rotating rod.

[0013] Preferably, there is a spacer between two adjacent threaded portions.

[0014] A massage mechanism includes a housing, within which a motor with a multi-threaded rotating shaft is disposed.

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

[0016] This invention creates at least two threaded portions with different pitches on the outer wall of the motor's rotating shaft, thereby enabling different transmission speeds by driving transmission wheels of the same size. Compared to existing massage mechanisms that achieve different transmission speeds by setting transmission wheels of different sizes, this invention eliminates the need to increase the size of the transmission wheels, thus reducing the size of the massage mechanism. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure between the first rotating rod and the second rotating rod of this utility model;

[0019] Figure 3 This utility model Figure 1 Cross-sectional structural diagram;

[0020] Figure 4 This is a schematic diagram of the structure connecting the first and second massage heads via motor drive in this application.

[0021] The components are: 1. Base; 2. Rotating shaft; 21. First rotating rod; 22. Second rotating rod; 3. External thread; 31. First threaded part; 32. Second threaded part; 4. Threaded column; 5. Threaded hole; 6. Spacer; 7. First gear set; 8. Second gear set; 9. First drive shaft; 10. Connecting rod; 11. Second drive shaft; 12. First massage head; 13. Second massage head; 14. Eccentric wheel; 15. First swing arm; 16. Second swing arm. Detailed Implementation

[0022] 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.

[0023] like Figures 1-3 As shown, this utility model provides a motor with a multi-threaded rotating shaft, including a base 1. The base 1 is provided with a power component (the specific power component includes a stator, rotor, etc., which are existing technologies and will not be described in detail here). The power component is connected to at least one rotating shaft 2. The outer surface of at least one rotating shaft 2 is provided with an external thread 3. The at least one external thread 3 includes at least two threaded portions, and the pitch of each threaded portion is different.

[0024] Here, we take a motor with a rotating shaft 2 installed in a massage mechanism as an example for explanation: This application opens at least two threaded parts with different pitches on the outer wall of the rotating shaft 2 of the motor, so that the same size transmission wheel can be driven to achieve different transmission speeds. Compared with the existing massage mechanism that achieves different transmission speeds by setting different sizes of transmission wheels, there is no need to increase the size of the transmission wheel, thereby reducing the volume of the massage mechanism.

[0025] Additionally, it should be noted that when there are two rotating shafts 2, there are three possible scenarios: both rotating shafts 2 have at least two different threaded portions on their outer walls; one rotating shaft 2 has at least two different threaded portions on its outer wall, while the other rotating shaft 2 has a threaded portion with one threaded pitch; or one rotating shaft 2 has at least two different threaded portions on its outer wall, while the other rotating shaft 2 does not have an external thread 3.

[0026] like Figures 1-3 As shown, the external thread 3 includes a first threaded portion 31 and a second threaded portion 32. The pitch of the first threaded portion 31 and the second threaded portion 32 is 1mm-7mm. When the motor is installed inside the massage mechanism, if the pitch of the first threaded portion 31 and the second threaded portion 32 is greater than 7mm, the power transmission will be unstable due to the excessive pitch, the massage force will be too strong, and the movement of the massage head will be stuck or vibrate, affecting the massage effect. If the pitch of the first threaded portion 31 and the second threaded portion 32 is less than 1mm, the transmission efficiency will be reduced, the massage force will be too weak, the motor load will be increased, and the product lifespan will be shortened.

[0027] Furthermore, the pitch of the first threaded portion 31 and the second threaded portion 32 is 2mm-4.5mm. In conjunction with the speed regulation of the motor (i.e., adjusting the rotation speed of the rotating shaft 2, which is the prior art), the first threaded portion 31 and the second threaded portion 32 with pitch within this range can meet the massage intensity or speed needs of all people.

[0028] When the pitch of the first threaded part 31 and the second threaded part 32 is between 1mm and 2mm, even with the speed adjustment of the motor, the massage speed and intensity will be very small when the motor moves at high speed. It is only suitable for people who cannot bear the weight and need a light or slow massage. It cannot be used by people who can bear the weight. In fact, when the motor moves at low speed, the massage intensity will be very weak, and even people who cannot bear the weight will not feel a good massage effect.

[0029] When the pitch of the first threaded part 31 and the second threaded part 32 is between 4.5mm and 7mm, even with the speed adjustment of the motor, the massage force and speed will be very large when the motor moves at low speed. Therefore, it is only suitable for people who can withstand gravity and need heavy or fast massage. Even when the motor moves at high speed, the massage force will be very strong, which may cause pain even for people who can withstand force, resulting in poor massage effect.

[0030] Furthermore, regarding such Figure 4 The neck and shoulder massager shown here integrates kneading and tapping functions. After testing, the optimal settings for the motor's speed adjustment are: a thread pitch of 3mm-3.5mm for the first thread section 31 and 2.2mm-2.8mm for the second thread section 32. This satisfies the needs of a small group of people requiring light or slow massage and tapping, as well as those requiring heavy or fast massage and tapping. It also best suits the massage intensity and tapping speed needs of most people, avoiding the extreme effects mentioned above when adjusting the speed. This caters to different massage needs and maximizes the massage effect. The specific kneading and tapping principles are as follows:

[0031] like Figure 4 As shown, the following is an example of the motor being installed inside the shoulder and neck massage mechanism: The outer shell of the shoulder and neck massage mechanism is not shown in the figure. A second drive shaft 11 is rotatably installed inside the outer shell. Both ends of the second drive shaft 11 are fixedly connected to eccentric wheels 14. A first swing arm 15 and a second swing arm 16 are provided on the eccentric wheels 14 (the rotation of the second drive shaft 11 to drive the second massage head 13 to perform kneading action is existing technology, and the details are not described here).

[0032] In addition, the first drive shaft 9 is rotatably located inside the housing. The external thread 3 is connected to the first drive shaft 9 and the second drive shaft 11 through the first gear set 7 and the second gear set 8, respectively. When the power component inside the base 1 drives the external thread 3 to rotate, the first thread 31 and the second thread 32 drive the first gear set 7 and the second gear set 8 to rotate, thereby driving the first drive shaft 9 and the second drive shaft 11 to rotate. Here, the first drive shaft 9 is set as an eccentric shaft. Both ends of the eccentric shaft are connected to one end of the connecting rod 10 through bearings. The other end of the connecting rod 10 is hinged to the first swing arm 15. When the first drive shaft 9 rotates, it can drive the connecting rod 10 to swing, thereby driving the first swing arm 15 to move, so that the first massage head 12 can perform a tapping operation. Since the pitch of the first thread 31 and the second thread 32 is different, the first drive shaft 9 and the second drive shaft 11 can achieve different transmission speeds, ultimately achieving the relatively fast tapping operation of the first massage head 12 and the relatively slow kneading operation of the second massage head 13.

[0033] like Figure 2 and Figure 3 As shown, the rotating shaft 2 includes at least two rotating rods. One rotating rod has a threaded portion with a certain pitch on its outer wall. The two adjacent rotating rods are detachably and fixedly connected. By setting two rotating rods that are detachably and fixedly connected, when the threaded portion with a certain pitch is damaged, it can be disassembled and replaced individually, avoiding the waste of materials caused by replacing the entire rotating shaft 2. Furthermore, the fact that each rotating rod is individually machined with a threaded portion with a certain pitch can prevent the situation where, when machining multiple threaded portions with different pitches on a single rotating shaft 2, the machined threaded portion may be worn when machining another threaded portion after machining one threaded portion.

[0034] like Figure 2 and Figure 3 As shown, specifically, one end of a rotating rod is provided with a threaded post 4, and the other end of a rotating rod directly opposite the threaded post 4 is provided with a threaded hole 5 that is adapted to the threaded post 4. Through the threaded post 4 and the threaded hole 5, quick assembly and disassembly between two adjacent rotating rods can be completed.

[0035] like Figure 2 and Figure 3 As shown, the external thread 3 includes two threaded portions, and the rotating shaft 2 includes two rotating rods as an example: the rotating shaft 2 includes a first rotating rod 21 and a second rotating rod 22. The first threaded portion 31 is opened on the outer wall of the first rotating rod 21, and the second threaded portion 32 is opened on the outer wall of the second rotating rod 22.

[0036] like Figure 1As shown, there is a spacer 6 between two adjacent threaded parts. When two or more threaded parts with different pitches are opened on a rotating shaft 2, by setting the spacer 6, the two threaded parts can be prevented from connecting, thereby preventing wear on the machined threaded part when machining another threaded part after machining one threaded part.

[0037] 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 motor with a multi-thread structure rotating shaft, comprising a base (1), a power assembly is arranged in the base (1), the power assembly is drivingly connected with at least one rotating shaft (2), characterized in that: At least one of the rotating shafts (2) is provided with external threads (3) on the outer surface, and the external threads (3) comprise at least two thread portions, and the pitch of each thread portion is different.

2. The motor with multi-thread structure rotating shaft according to claim 1, characterized in that: The external threads (3) comprise a first thread portion (31) and a second thread portion (32), and the pitch of the first thread portion (31) and the second thread portion (32) is 1mm-7mm.

3. The motor with multi-thread structure rotating shaft according to claim 2, characterized in that: The pitch of the first thread portion (31) and the second thread portion (32) is 2mm-4.5mm.

4. The motor with multi-thread structure rotating shaft according to claim 3, characterized in that: The pitch of the first thread portion (31) is 3mm-3.5mm, and the pitch of the second thread portion (32) is 2.2mm-2.8mm.

5. The motor with multi-thread structure rotating shaft according to claim 2, characterized in that: The rotating shaft (2) comprises at least two rotating rods, one of which is provided with a thread portion with a certain pitch on the outer wall, and adjacent two rotating rods are detachably fixedly connected.

6. The motor with multi-thread structure rotating shaft according to claim 5, characterized in that: One end of one of the rotating rods is provided with a threaded column (4), and the other end of the rotating rod opposite to the threaded column (4) is provided with a threaded hole (5) matched with the threaded column (4).

7. The motor with multi-thread structure rotating shaft according to claim 5, characterized in that: The rotating shaft (2) comprises a first rotating rod (21) and a second rotating rod (22), the first thread portion (31) is provided on the outer wall of the first rotating rod (21), and the second thread portion (32) is provided on the outer wall of the second rotating rod (22).

8. The motor with multi-thread structure rotating shaft according to claim 1, characterized in that: Adjacent two thread portions are provided with a spacing portion (6).

9. A massaging movement, comprising a housing, characterized in that: The shell is provided with the motor with the rotating shaft with multiple thread structures according to any one of claims 1-8.

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