Miniature motor convenient to maintain

Abstract

The utility model relates to the technical field of micro motors, in particular to a micro motor convenient to maintain, which comprises a casing and a motor main body mounted in the casing, a sealing ring is fixedly connected to the front edge of the inner wall of the casing, a cover is attached to the inner wall of the sealing ring, a square groove is formed in the front end of the cover, and the front end of the square groove is provided with a through hole. Pressing plates are symmetrically attached to the rear end of the inner side of the square groove from top to bottom, L-shaped plates are fixedly connected to the rear edges of the wall faces, away from each other, of the two pressing plates, and inserting columns are fixedly connected to the ends, away from each other, of the two L-shaped plates; the beneficial effects of the utility model are that the cover body does not need to be disassembled and assembled through some special disassembling and assembling tools and technologies, the disassembling and assembling process does not need to be carried out carefully, the motor main body or other parts do not need to be worried about damage, and the disassembling and assembling operation is simple, thereby facilitating maintenance of the motor main body and improving the working efficiency. And the possibility of replacing the whole motor module is reduced to a certain extent, so that the cost is indirectly saved.

Description

Technical Field

[0001] The utility model relates to the technical field of micro motors, in particular to a micro motor which is easy to maintain. Background Art

[0002] A micromotor is an electric motor with small size, simple structure and low power. It is widely used in various fields, such as medical equipment, robots, automobiles, etc., and is often used to provide driving, vibration, rotation and other functions.

[0003] Micro motors play a role in power output in massage instrument products, providing a power source for vibration and rotation of massagers. In general massagers, the output shaft end of the micro motor is connected to a semi-cylindrical copper block. When the motor rotates, the semi-cylindrical copper block will rotate with it, causing the center of gravity to move and produce a vibration effect, which can be used for people's massage. During use, due to long-term work, friction and wear, dust accumulation and other reasons, micro motors may malfunction and fail. Maintenance can include operations such as cleaning dust, lubricating mechanical parts, and replacing worn parts to ensure the normal operation of the micro motor.

[0004] However, the existing micro motors are generally not easy to maintain, mainly because they are too closed and difficult to disassemble. They generally require some special disassembly tools and techniques to disassemble and assemble, and the disassembly and assembly process needs to be carried out carefully to avoid damaging the motor or other components. Usually, when the existing micro motors fail or need maintenance, the more common practice is to directly replace the entire motor module, which increases the cost. To this end, we propose a micro motor that is easy to maintain. Utility Model Content

[0005] The purpose of the utility model is to provide a micro motor which is easy to maintain, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a micro motor that is easy to maintain, comprising a casing and a motor body installed in the casing, a sealing ring fixedly connected to the front edge of the inner wall of the casing, a cover body attached to the inner wall of the sealing ring, a square groove is provided at the front end of the cover body, and a press plate is symmetrically attached to the inner rear end of the square groove from top to bottom, two L-shaped plates are fixedly connected to the rear edges of the wall surfaces away from each other, and one end of the two L-shaped plates away from each other is fixedly connected to a plug post, and the two plug posts are movably passed through the cover body and the sealing ring, and holes are provided on the inner wall of the casing corresponding to the two plug posts, and the two holes are slidably matched with the two plug posts respectively, and an elastic mechanism is provided between the two plug posts and the cover body, and a guide mechanism is provided between the cover body, the casing and the sealing ring.

[0007] Preferably, the elastic mechanism includes a cylindrical groove, which is opened on the inner wall of the cover body corresponding to the plug post, and an annular plate is tightly fitted on an inner end face of the cylindrical groove, and the annular plate is fixedly sleeved on the outer wall of the plug post, and a spring is fixedly connected between the annular plate and the other inner end face of the cylindrical groove, and the spring is slidably sleeved on the outer wall of the plug post.

[0008] Preferably, the guiding mechanism comprises two limit blocks and two limit grooves, the two limit blocks are symmetrically fixedly connected to the outer wall of the cover body, and the two limit blocks are movable through the sealing ring, the two limit grooves are respectively opened at the front end of the casing corresponding to the two limit blocks, and the two limit grooves are respectively slidably matched with the two limit blocks.

[0009] Preferably, sliders are fixedly connected to the middle parts of the two side walls of the two pressing plates, and rectangular grooves are provided on the inner walls of the square grooves corresponding to the four sliders, and the four rectangular grooves are slidably matched with the four sliders respectively.

[0010] Preferably, the wall surfaces of the two pressing plates that are away from each other are each provided with a plurality of anti-skid grooves, and the plurality of anti-skid grooves are arranged in a linear array from front to back.

[0011] Preferably, the cover body and the limiting block are an integrally formed structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are: through the mutual cooperation of the casing, sealing ring, cover body, square groove, press plate, L-shaped plate, plug column, plug hole, elastic mechanism and guide mechanism, the cover body does not need to be disassembled and assembled through some special disassembly and assembly tools and techniques, and the disassembly and assembly process does not need to be carried out cautiously, and there is no need to worry about damage to the motor body or other components, and the disassembly and assembly operation is simple, thereby facilitating the maintenance of the motor body, reducing the possibility of replacing the entire motor module to a certain extent, thereby indirectly saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a partial cross-sectional view of the utility model;

[0015] Figure 3 Another partial cross-sectional view of the utility model;

[0016] Figure 4 This is a display diagram of the housing, motor body, sealing ring and limiting groove of the utility model;

[0017] Figure 5 It is a display diagram of the limit block, rectangular groove, cover body and square groove of the utility model;

[0018] Figure 6This is a partial component display diagram of the utility model.

[0019] In the accompanying drawings, the parts represented by each number are listed as follows: 1. Casing; 2. Motor body; 3. Sealing ring; 4. Limit block; 5. Rectangular groove; 6. Press plate; 7. Cover; 8. L-shaped plate; 9. Square groove; 10. Spring; 11. Ring plate; 12. Plug column; 13. Column groove; 14. Plug hole; 15. Limit groove; 16. Slider; 17. Anti-slip groove. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-Figure 6 A micro motor that is easy to maintain as shown in the figure includes a casing 1 and a motor body 2 installed in the casing 1, a sealing ring 3 is fixedly connected to the front edge of the inner wall of the casing 1, and a cover body 7 is attached to the inner wall of the sealing ring 3. A square groove 9 is opened at the front end of the cover body 7, and a pressing plate 6 is symmetrically attached to the inner rear end of the square groove 9 from top to bottom. L-shaped plates 8 are fixedly connected to the rear edges of the wall away from each other of the two pressing plates 6, and one end of the two L-shaped plates 8 away from each other is fixedly connected to a plug column 12, and the two plug columns 12 are movably passed through the cover body 7 and the sealing ring 3, and holes 14 are opened on the inner wall of the casing 1 corresponding to the two plug columns 12, and the two plug holes 14 are respectively slidably matched with the two plug columns 12, and elastic mechanisms are provided between the two plug columns 12 and the cover body 7, and a guiding mechanism is provided between the cover body 7 and the casing 1 and the sealing ring 3.

[0022] See also Figure 2 , Figure 3 and Figure 6 In the figure, the elastic mechanism includes a cylindrical groove 13, which is opened on the inner wall of the cover body 7 corresponding to the plug column 12, and an annular plate 11 is tightly fitted on one end surface of the inner side of the cylindrical groove 13, and the annular plate 11 is fixedly sleeved on the outer wall of the plug column 12, and a spring 10 is fixedly connected between the annular plate 11 and the other end surface of the inner side of the cylindrical groove 13, and the spring 10 is slidably sleeved on the outer wall of the plug column 12.

[0023] See also Figure 1-Figure 5In the figure, the guide mechanism includes two limit blocks 4 and two limit grooves 15. The two limit blocks 4 are symmetrically fixedly connected to the outer wall of the cover body 7, and the two limit blocks 4 are movable through the sealing ring 3. The two limit grooves 15 are respectively opened at the front end of the casing 1 corresponding to the two limit blocks 4, and the two limit grooves 15 are respectively slidably matched with the two limit blocks 4.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 In the figure, the middle parts of the two side walls of the two pressing plates 6 are fixedly connected with sliders 16, and the inner walls of the square groove 9 are provided with rectangular grooves 5 corresponding to the four sliders 16, and the four rectangular grooves 5 are slidably matched with the four sliders 16 respectively.

[0025] See also Figure 6 In the figure, the walls of the two pressing plates 6 that are away from each other are provided with a plurality of anti-skid grooves 17, and the plurality of anti-skid grooves 17 are arranged in a linear array from front to back; the provision of the anti-skid grooves 17 can increase the friction between the pressing plates 6 and the fingers, so that a certain anti-skid effect is achieved when the two pressing plates 6 are pinched and pulled.

[0026] See also Figure 1 , Figure 2 , Figure 3 and Figure 5 In the figure, the cover body 7 and the limit block 4 are an integrally formed structure; the stability between the cover body 7 and the limit block 4 is good.

[0027] Working principle: When the cover body 7 needs to be removed from the casing 1, first, hold the casing 1 with one hand, and pinch the two push plates 6 with the other hand. The two push plates 6 will slide close to each other in the square groove 9 on the cover body 7 (in this process, the two sliders 16 on each of the two push plates 6 will slide in the rectangular groove 5 on the corresponding square groove 9), the two push plates 6 will drive the L-shaped plates 8 on each of them to slide close to each other in the square groove 9, the two L-shaped plates 8 will drive the respective plug posts 12 on the inner wall of the cover body 7 and the inner wall of the sealing ring 3 to slide close to each other, the two plug posts 12 will drive the respective annular plates 11 on each of them to slide close to each other in the corresponding cylindrical grooves 13 on the cover body 7 (in this process, the springs 10 between the two annular plates 11 and the corresponding cylindrical grooves 13 will be squeezed on the outer walls of the corresponding plug posts 12), the two plug posts 12 will also slide close to each other in the corresponding sockets 14 on the casing 1 and completely slide out of the corresponding sockets 14.

[0028] Then, while pinching the two pressing plates 6 and not letting go, pull the two pressing plates 6 forward, the two pressing plates 6 will drive the cover body 7 to slide forward in the sealing ring 3 on the casing 1, the cover body 7 will drive the two limiting blocks 4 to slide forward in the inner wall of the sealing ring 3, and the two limiting blocks 4 will also slide forward in the limiting grooves 15 on their respective corresponding casings 1 until the cover body 7 completely leaves the casing 1, and then the motor body 2 in the casing 1 can be maintained.

[0029] Similarly, according to the opposite operation, while pinching the two push plates 6 without letting go, push the two push plates 6 backwards and make the limit block 4 correspond to the limit groove 15 (the cooperation between the limit block 4 and the limit groove 15 can ensure the correspondence between the position of the plug post 12 and the socket 14, and has a guiding effect). The push plate 6 will drive the cover body 7 to slide backward in the sealing ring 3 on the casing 1 (the setting of the sealing ring 3 can prevent or reduce dust and other pollutants from entering the casing 1, thereby protecting the motor body 2), and release the two push plates 6 until the position of the plug post 12 corresponds to the socket 14. Under the action of the two springs 10, the two plug posts 12 will automatically be inserted into their respective corresponding sockets 14, thereby fixing the cover body 7 on the casing 1, and easy disassembly and assembly.

[0030] It should be noted that the cover body 7 does not need to be disassembled and assembled through some special disassembly and assembly tools and techniques, and the disassembly and assembly process does not need to be carried out carefully, nor does it need to worry about damaging the motor body 2 or other components. The disassembly and assembly operation is simple, which facilitates the maintenance of the motor body 2 and reduces the possibility of replacing the entire motor module to a certain extent, thereby indirectly saving costs.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A micro motor that is easy to maintain, comprising a housing (1) and a motor body (2) installed in the housing (1), characterized in that: A sealing ring (3) is fixedly connected to the front edge of the inner wall of the housing (1), a cover body (7) is attached to the inner wall of the sealing ring (3), a square groove (9) is provided at the front end of the cover body (7), a pressing plate (6) is symmetrically attached to the inner rear end of the square groove (9) from top to bottom, and L-shaped plates (8) are fixedly connected to the rear edges of the wall surfaces away from each other of the two pressing plates (6), and one end of the two L-shaped plates (8) away from each other is fixedly connected to The two plug posts (12) are movably inserted through the cover body (7) and the sealing ring (3); the inner wall of the housing (1) is provided with insertion holes (14) corresponding to the two plug posts (12); the two insertion holes (14) are respectively slidably matched with the two plug posts (12); elastic mechanisms are provided between the two plug posts (12) and the cover body (7); and guiding mechanisms are provided between the cover body (7), the housing (1) and the sealing ring (3).

2. The micro motor that is easy to maintain according to claim 1 is characterized in that: The elastic mechanism comprises a cylindrical groove (13), the cylindrical groove (13) is arranged on the inner wall of the cover body (7) corresponding to the plug post (12), and an annular plate (11) is tightly fitted on an inner end face of the cylindrical groove (13), the annular plate (11) is fixedly sleeved on the outer wall of the plug post (12), and a spring (10) is fixedly connected between the annular plate (11) and the other inner end face of the cylindrical groove (13), and the spring (10) is slidably sleeved on the outer wall of the plug post (12).

3. The micro motor that is easy to maintain according to claim 1 is characterized in that: The guide mechanism comprises two limit blocks (4) and two limit grooves (15); the two limit blocks (4) are symmetrically fixedly connected to the outer wall of the cover body (7), and the two limit blocks (4) are movable through the sealing ring (3); the two limit grooves (15) are respectively arranged at the front end of the housing (1) corresponding to the two limit blocks (4), and the two limit grooves (15) are respectively slidably matched with the two limit blocks (4).

4. The micro motor that is easy to maintain according to claim 1 is characterized in that: Slide blocks (16) are fixedly connected to the middle of both side walls of the two pressing plates (6), and rectangular grooves (5) are provided on the inner wall of the square groove (9) corresponding to the four slide blocks (16), and the four rectangular grooves (5) are respectively slidably matched with the four slide blocks (16).

5. The micro motor that is easy to maintain according to claim 1 is characterized in that: The wall surfaces of the two pressing plates (6) that are away from each other are each provided with a plurality of anti-skid grooves (17), and the plurality of anti-skid grooves (17) are arranged in a linear array from front to back.

6. The micro motor that is easy to maintain according to claim 3 is characterized in that: The cover body (7) and the limiting block (4) are an integrally formed structure.

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