Waterproof micro motor

Abstract

The utility model provides a waterproof micro motor, which belongs to the technical field of micro motors and comprises a motor body and an end cover fixedly mounted on the right side of the side wall of the motor body, an output shaft rod is rotatably mounted in the middle of the left side wall of the motor body, and a transmission wheel is fixedly mounted on the side wall of the output shaft rod. A support assembly is arranged on the periphery of the lower end face of the motor body, a sealing sleeve is arranged in the middle of the left side wall of the motor body, a sealing assembly is arranged in an inner cavity of the left side wall of the motor body, and an O-shaped ring is arranged at the joint of the end cover and the motor body. According to the utility model, through the arrangement of the support assembly, under the cooperation effect of the arc-shaped groove and the like, the distance between the motor body and the ground can be adjusted so as to reduce the possibility that accumulated water on the ground evaporates and permeates into the motor body, and meanwhile, the sealing assembly is arranged, so that the sealing rubber ring can be firmly attached to the transmission column, and the service life of the motor is prolonged. And the waterproof performance of the whole motor is improved.

Description

Technical Field

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

[0002] A micro motor, also known as a micro-motor, is a motor with a small size and capacity and an output power generally below a few hundred watts. It is often used in control systems to detect, calculate, amplify, execute or convert electromechanical signals or energy, or to transmit mechanical loads, and can also be used as an AC or DC power supply for equipment.

[0003] However, the existing micro motors are not waterproof. When the micro motors work in some special water environments, liquids can easily penetrate into the motors, affecting the performance of the micro motors. In serious cases, the micro motors may be damaged. Therefore, how to invent a waterproof micro motor to improve these problems has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a waterproof micro motor, aiming to improve the problems raised in the above background technology.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a waterproof micro motor, comprising a motor body and an end cover fixedly mounted on the right side of the side wall of the motor body, an output shaft is rotatably mounted in the middle of the left side wall of the motor body, a transmission wheel is fixedly mounted on the side wall of the output shaft, and is characterized in that a bracket assembly is arranged around the lower end surface of the motor body, a sealing sleeve is arranged in the middle of the left side wall of the motor body, a sealing assembly is arranged in the inner cavity of the left side wall of the motor body, and an O-ring is arranged at the connection between the end cover and the motor body.

[0007] Preferably, the bracket assembly includes a bracket plate fixedly mounted on the lower end surface of the motor body, and a limiting column inserted into the inner cavity of the bracket plate, and support vertical plates are slidably mounted on the left and right side walls of the bracket plate.

[0008] By adopting the above technical solution, the distance between the motor body and the ground can be changed to reduce the possibility of the accumulated water on the ground evaporating and penetrating into the motor body.

[0009] Preferably, nuts are threadedly installed on the left and right sides of the side walls of the limiting column, an arc-shaped groove is opened on the side wall of the supporting vertical plate, and the limiting column slides in the inner cavity of the arc-shaped groove.

[0010] Preferably, the sealing assembly includes a movable groove opened on the left side wall of the motor body, an extrusion rod is slidably installed in the inner cavity of the movable groove, an extrusion spring is fixedly installed on the side wall of the extrusion rod, the other end of the extrusion spring is fixedly installed on the top surface of the inner cavity of the movable groove, and a magnetic ball is fixedly installed on the lower end surface of the extrusion rod.

[0011] By adopting the above technical solution, the sealing rubber ring can be firmly attached to the transmission column, thereby improving the waterproof effect of the entire motor device.

[0012] Preferably, the sealing assembly also includes a limit plate fixedly mounted on the side wall of the sealing sleeve, a limit hole is provided on the side wall of the limit plate, a connecting cavity is also provided on the sealing sleeve, a magnetic plate is slidably mounted on the inner cavity of the limit plate, a reset spring is fixedly mounted on the side wall of the magnetic plate, and the other end of the reset spring is fixedly mounted on the inner cavity side wall of the limit plate.

[0013] Preferably, the connecting cavity is connected to the inner cavity of the limiting plate, a sealing rubber ring is slidably installed on the inner wall of the connecting cavity, the sealing rubber ring is attached to the side wall of the output shaft, and a repulsive force is exhibited between the magnetic plate and the magnetic ball.

[0014] The beneficial effects of the utility model are:

[0015] By setting the bracket assembly, with the cooperation of the arc groove, etc., the distance between the motor body and the ground can be adjusted to reduce the possibility of evaporation of accumulated water on the ground and infiltration into the motor body, thereby improving the waterproof performance of the entire motor equipment. At the same time, a sealing assembly is added, and with the cooperation of the extrusion rod and the magnetic ball, etc., a certain pressure can be applied to the sealing rubber ring to make it fit more firmly on the transmission column, further improving the waterproof effect of the entire motor equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of a waterproof micro motor provided by an embodiment of the utility model;

[0018] Figure 2 It is a rear view overall structural schematic diagram of a waterproof micro motor provided by an embodiment of the utility model;

[0019] Figure 3It is a schematic diagram of a partial cross-sectional structure of a waterproof micro motor provided by an embodiment of the utility model;

[0020] Figure 4 This is a waterproof micro motor provided by the utility model. Figure 3 Schematic diagram of the enlarged structure of area A in the middle.

[0021] In the figure: 1. Motor body; 2. End cover; 3. Output shaft; 4. Transmission wheel; 5. Bracket assembly; 51. Bracket plate; 52. Limiting column; 53. Support vertical plate; 54. Nut; 55. Arc groove; 6. Sealing sleeve; 7. Sealing assembly; 71. Movable groove; 72. Extrusion rod; 73. Extrusion spring; 74. Magnetic ball; 75. Limiting plate; 76. Limiting hole; 77. Connecting cavity; 771. Sealing rubber ring; 78. Magnetic plate; 79. Reset spring; 8. O-ring. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example

[0024] Reference Figure 1-4 A waterproof micro motor comprises a motor body 1, and an end cover 2 fixedly mounted on the right side of the side wall of the motor body 1, an output shaft 3 is rotatably mounted in the middle of the left side wall of the motor body 1, a transmission wheel 4 is fixedly mounted on the side wall of the output shaft 3, a bracket assembly 5 is arranged around the lower end surface of the motor body 1, a sealing sleeve 6 is arranged in the middle of the left side wall of the motor body 1, a sealing assembly 7 is arranged in the inner cavity of the left side wall of the motor body 1, and an O-ring 8 is arranged at the connection between the end cover 2 and the motor body 1.

[0025] Furthermore; the bracket assembly 5 includes a bracket plate 51 fixedly mounted on the lower end surface of the motor body 1, and a limiting column 52 inserted in the inner cavity of the bracket plate 51, and support vertical plates 53 are slidably mounted on the left and right side walls of the bracket plate 51, and nuts 54 are threadedly mounted on the left and right sides of the side walls of the limiting column 52. An arc groove 55 is opened on the side wall of the supporting vertical plate 53, and the limiting column 52 slides in the inner cavity of the arc groove 55.

[0026] It should be noted that: after the user slides the support vertical plate 53 on the bracket plate 1 to a suitable distance, the user then engages the limit column 52 pin in the inner cavity of the bracket plate 51, and then tightens the nut 54 to ensure the fixation of the support vertical plate 53 and the bracket plate 1. An arc groove 55 is opened on the side wall of the support vertical plate 53. By placing the limit column 52 at different positions in the arc groove 55, the total length of the support vertical plate 53 and the bracket plate 1 can be changed, thereby changing the distance between the motor body 1 and the ground, so as to reduce the possibility of evaporation of accumulated water on the ground and infiltrating into the interior of the motor body 1, thereby improving the waterproof performance of the entire motor.

[0027] Further, the sealing assembly 7 includes a movable groove 71 provided on the left side wall of the motor body 1, an extrusion rod 72 is slidably installed in the inner cavity of the movable groove 71, an extrusion spring 73 is fixedly installed on the side wall of the extrusion rod 72, the other end of the extrusion spring 73 is fixedly installed on the inner cavity top surface of the movable groove 71, and a magnetic ball 74 is fixedly installed on the lower end surface of the extrusion rod 72. The sealing assembly 7 also includes a limit plate 75 fixedly installed on the side wall of the sealing sleeve 6, and a limit hole 76 is provided on the side wall of the limit plate 75 A connecting cavity 77 is also provided on the sealing sleeve 6. A magnetic plate 78 is slidably mounted in the inner cavity of the limit plate 75. A return spring 79 is fixedly mounted on the side wall of the magnetic plate 78. The other end of the return spring 79 is fixedly mounted on the side wall of the inner cavity of the limit plate 75. The connecting cavity 77 is connected to the inner cavity of the limit plate 75. A sealing rubber ring 771 is slidably mounted on the inner side wall of the connecting cavity 77. The sealing rubber ring 771 is attached to the side wall of the output shaft 3. There is a repulsive force between the magnetic plate 78 and the magnetic ball 74.

[0028] The working principle of this waterproof micro motor:

[0029] After the user slides the support plate 53 on the bracket plate 1 to a suitable distance, the user then engages the limit column 52 with the inner cavity of the bracket plate 51, and then tightens the nut 54 to ensure that the support plate 53 and the bracket plate 1 are fixed. The arc groove 55 is provided on the side wall of the support plate 53. By placing the limit column 52 at different positions in the arc groove 55, the total length of the support plate 53 and the bracket plate 1 can be changed, thereby changing the distance between the motor body 1 and the ground, so as to reduce the possibility of the accumulated water on the ground evaporating and penetrating into the motor body 1, thereby improving the waterproof performance of the entire motor;

[0030] When installing the motor body 1 for the first time, the user inserts the limit plate 75 on the sealing sleeve 6 into the inner cavity of the side wall of the motor body 1. Under the elastic force of the extrusion spring 73, the extrusion rod 72 can drive the magnetic ball 74 to move downward to limit the limit hole 76 on the limit plate 75. At this time, the sealing sleeve 6 will be firmly against the side wall of the motor body 1, and there is a repulsive force between the magnetic plate 78 and the magnetic ball 74, which can squeeze the magnetic plate 78. At this time, the total volume between the connecting cavity 77 and the limit plate 75 is reduced, and the pressure inside the connecting cavity 77 is increased, which can apply pressure to the sealing rubber ring 771, so that the sealing rubber ring 771 fits more tightly on the side wall of the rotating column 3, further improving the waterproof effect of the entire motor.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0033] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A waterproof micro motor, comprising a motor body (1), and an end cover (2) fixedly mounted on the right side of the side wall of the motor body (1), an output shaft (3) rotatably mounted in the middle of the left side wall of the motor body (1), and a transmission wheel (4) fixedly mounted on the side wall of the output shaft (3), characterized in that: A bracket assembly (5) is arranged around the lower end surface of the motor body (1), a sealing sleeve (6) is arranged in the middle of the left side wall of the motor body (1), a sealing assembly (7) is arranged in the inner cavity of the left side wall of the motor body (1), and an O-ring (8) is arranged at the connection between the end cover (2) and the motor body (1).

2. A waterproof micro motor according to claim 1, characterized in that: The support assembly (5) comprises a support plate (51) fixedly mounted on the lower end surface of the motor body (1), and a limit column (52) inserted into the inner cavity of the support plate (51), and support vertical plates (53) are slidably mounted on the left and right side walls of the support plate (51).

3. A waterproof micro motor according to claim 2, characterized in that: Nuts (54) are threadedly mounted on the left and right sides of the side wall of the limiting column (52), an arc-shaped groove (55) is opened on the side wall of the supporting vertical plate (53), and the limiting column (52) slides in the inner cavity of the arc-shaped groove (55).

4. A waterproof micro motor according to claim 1, characterized in that: The sealing assembly (7) comprises a movable groove (71) provided on the left side wall of the motor body (1); an extrusion rod (72) is slidably mounted in the inner cavity of the movable groove (71); an extrusion spring (73) is fixedly mounted on the side wall of the extrusion rod (72); the other end of the extrusion spring (73) is fixedly mounted on the top surface of the inner cavity of the movable groove (71); and a magnetic ball (74) is fixedly mounted on the lower end surface of the extrusion rod (72).

5. A waterproof micro motor according to claim 4, characterized in that: The sealing assembly (7) further comprises a limit plate (75) fixedly mounted on the side wall of the sealing sleeve (6), a limit hole (76) being provided on the side wall of the limit plate (75), a connecting cavity (77) being further provided on the sealing sleeve (6), a magnetic plate (78) being slidably mounted on the inner cavity of the limit plate (75), a return spring (79) being fixedly mounted on the side wall of the magnetic plate (78), and the other end of the return spring (79) being fixedly mounted on the inner cavity side wall of the limit plate (75).

6. A waterproof micro motor according to claim 5, characterized in that: The connecting cavity (77) is connected to the inner cavity of the limiting plate (75), and a sealing rubber ring (771) is slidably mounted on the inner wall of the connecting cavity (77). The sealing rubber ring (771) is attached to the side wall of the output shaft (3), and a repulsive force is exerted between the magnetic plate (78) and the magnetic ball (74).

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