CN217508432U

CN217508432U - Output shaft waterproof construction and waterproof electricity drive output device

Info

Publication number: CN217508432U
Application number: CN202221623848.6U
Authority: CN
Inventors: 秦江平
Original assignee: Dongguan Jingui Electronic Technology Co ltd
Current assignee: Dongguan Jingui Electronic Technology Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-09-27
Anticipated expiration: 2032-06-27

Abstract

The utility model discloses an output shaft waterproof construction and waterproof electricity drive output device relates to actuating mechanism output waterproof construction technical field, is applied to the junction between actuating mechanism and the output shaft, and is characterized in that, including the waterproof body, the waterproof body is U type structure, and the middle part trompil of waterproof body forms the output shaft hole site; wherein, the middle part periphery of waterproof spare body sets up round elasticity waterproof part, and elasticity waterproof part is used for wrapping up the surface of output shaft, prevents that outside liquid from getting into actuating mechanism in the gap of output shaft. According to the utility model discloses an output shaft waterproof construction and waterproof electricity drive output device, waterproof body can cup joint in the junction of actuating mechanism and output shaft, prevents that the output shaft from rotating in-process liquid and getting into actuating mechanism from the output shaft gap. The elastic waterproof part can elastically seal the rotating output shaft without affecting the output performance of the driving mechanism.

Description

Output shaft waterproof construction and waterproof electricity drive output device

Technical Field

The utility model relates to an actuating mechanism output waterproof construction technical field, in particular to output shaft waterproof construction and waterproof electricity drive output device.

Background

With the development of science and technology, the development of industry is accelerated, and the working environment of mechanical equipment is gradually expanded, and in the production environment, the mechanical equipment can work in dusty, foggy, rainy, high-pressure or immersion liquid environment and the like. The existing mechanical equipment structure is only used under the ground working condition in the beginning of design, and only has good dustproof and liquid splashing prevention capability. However, with the abundance of life of people, more and more small mechanical products are released, wherein in order to improve the underwater waterproof sealing capability of the products, the enterprises increase the waterproof capability of the products by designing structures such as waterproof sealing grooves, glue pouring, glue sealing connection and the like. However, for moving parts, such as an output shaft and a transmission rod of a motor, a gasket is mostly adopted to fill a gap between a moving part and a shell to reduce liquid infiltration, so that good waterproof performance cannot be achieved, and on the premise of ensuring the smoothness of the movement of the moving part, a certain gap exists between the moving part and the gasket, so that the waterproof effect is poor, and the service life is short.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving at least "to the part of motion that exists among the prior art, adopt the packing ring to fill the gap of motion part and casing mostly and reduce the liquid infiltration, can't reach good waterproof performance, lead to the not good enough of water-proof effects, technical problem that life is short". Therefore, the utility model provides an output shaft waterproof construction and waterproof electricity drive output device possesses good waterproof performance, avoids inside the liquid infiltration driving medium, promotes life.

According to some embodiments of the utility model, the output shaft waterproof structure is applied to the joint between the driving mechanism and the output shaft, and is characterized by comprising a waterproof part body, wherein the waterproof part body is of a U-shaped structure, and the middle part of the waterproof part body is provided with a hole to form an output shaft hole site; the middle periphery of the waterproof piece body is provided with a circle of elastic waterproof part, and the elastic waterproof part is used for wrapping the surface of the output shaft and preventing external liquid from entering the driving mechanism from a gap of the output shaft.

According to some embodiments of the utility model, the waterproof portion of elasticity includes resilience portion and contact site, the waterproof piece body sets gradually from middle part trompil to the outer lane the contact site with resilience portion.

According to some embodiments of the utility model, the contact site is the design of Y type, the contact site jag direction with the surface laminating of output shaft.

According to some embodiments of the present invention, the contact portion comprises an upper attaching portion and a lower attaching portion, and an inwardly concave waterproof cavity is formed between the upper attaching portion and the lower attaching portion; when the output shaft is assembled with the contact part, the upper attaching part and the lower attaching part are sleeved on the periphery of the output shaft, and the concave waterproof cavity extends to the radial outer side of the output shaft.

According to some embodiments of the present invention, the diameter of the upper attaching portion is equal to the diameter of the lower attaching portion.

According to some embodiments of the utility model, the thickness of resilience portion is greater than the top thickness of waterproof body.

According to the utility model discloses a some embodiments, the waterproof part body adopts the elasticity rubber material to make.

According to some embodiments of the invention, the elastic waterproof portion is integrally formed with the waterproof member body.

According to some embodiments of the utility model, the periphery of waterproof piece body sets up the spacing portion of round, spacing portion perpendicular to the lateral wall of waterproof piece body extends outward, spacing portion is used for preventing the waterproof piece body with take place the skew in the output shaft use.

According to the utility model discloses a waterproof electricity drives output device of some embodiments, including foretell output shaft waterproof construction.

According to the utility model discloses an output shaft waterproof construction and waterproof electricity drive output device of some embodiments have following beneficial effect at least: the waterproof part body can be sleeved at the joint of the driving mechanism and the output shaft, so that liquid is prevented from entering the driving mechanism from the gap of the output shaft in the rotation process of the output shaft. The elastic waterproof part can elastically seal the rotating output shaft without influencing the output performance of the driving mechanism.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a sectional view of an output shaft waterproof structure according to an embodiment of the present invention;

fig. 2 is a top view of the output shaft waterproof structure according to the embodiment of the present invention;

FIG. 3 is an enlarged schematic view of portion A of FIG. 1;

fig. 4 is a side view of the output shaft waterproof structure according to the embodiment of the present invention.

Reference numerals:

a waterproof body 100, an output shaft hole site 110, a limit part 120,

Elastic waterproof portion 200, resilient portion 210, contact portion 220, upper attaching portion 221, lower attaching portion 222, and concave waterproof chamber 223.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to, for example, the upper, lower, front, rear, left, right, top, bottom, etc., is the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

An output shaft waterproof structure and a waterproof electric drive output device according to an embodiment of the present invention will be described below with reference to fig. 1 to 4.

As shown in fig. 1 to fig. 4, the waterproof structure of the output shaft is mainly applied to the connection between the driving mechanism and the output shaft, and specifically, the output shaft of the motor of the waterproof electrically-driven output device (not shown in the drawings) extends from the inside of the driving mechanism to the outside to be connected with the transmission component.

The utility model discloses in, output shaft waterproof construction includes waterproof part body 100, and the middle part trompil of waterproof part body 100 forms output shaft hole site 110, and output shaft hole site 110's diameter carries out the adaptation according to the waterproof output shaft that drives output device that drives of different specifications. And waterproof piece body 100 is the U type structure, can cover the bulge of actuating mechanism output, further promotes waterproof electricity and drives output device's waterproof performance. The flashing body 100 is assembled between the waterproof electric drive output device and the housing, and the flashing body 100 at the waterproof electric drive output device is fixed by the housing, ensuring that the relative positions of the flashing body 100 and the output shaft remain unchanged.

Wherein, a circle of elastic waterproof portion 200 is disposed on the periphery of the middle portion of the waterproof member body 100, that is, the periphery of the output shaft hole site 110 is the elastic waterproof portion 200. The elastic waterproof portion 200 is used to wrap the surface of the output shaft, thereby preventing external liquid from entering the driving mechanism from a gap between the output shaft and the output shaft hole 110 during the rotation of the output shaft. The elastic waterproof portion 200 has elasticity, and can elastically contact with the surface of the output shaft, and fill the gap of the output shaft by the action of elastic pressing force, thereby achieving good waterproof performance. Different from the existing gasket waterproof effect, the elastic acting force of the elastic waterproof part 200 is perpendicular to the surface of the output shaft and can directly act on the periphery of the output shaft, so that the elastic waterproof part 200 is continuously attached to the periphery of the output shaft, and the waterproof effect is better.

In some embodiments of the present invention, as shown in fig. 1 and 3, the elastic waterproof portion 200 includes a resilient portion 210 and a contact portion 220, and the waterproof member body 100 is provided with the contact portion 220 and the resilient portion 210 in order from the middle hole to the outer ring. Specifically, the resilient part 210 serves to provide a higher elastic force and is transmitted to the contact part 220, and the contact part 220 is in contact with the surface of the output shaft for filling the connection gap between the output shaft and the waterproof member body 100.

In a further embodiment, as shown in fig. 1 and 3, the contact portion 220 is Y-shaped in design, with the contact portion 220 conforming to the surface of the output shaft in the direction of the divergence. Specifically, the bifurcation of the contact part 220 forms two layers to be attached to the surface of the output shaft, so that a multi-layer water-resisting layer can be formed between the contact part 220 and the output shaft, and the waterproof effect between the contact part 220 and the output shaft can be improved.

In a further embodiment, as shown in fig. 3, the contact portion 220 includes an upper attaching portion 221 and a lower attaching portion 222, and a concave waterproof chamber 223 is formed between the upper attaching portion 221 and the lower attaching portion 222. When the output shaft is assembled with the contact portion 220, the upper attaching portion 221 and the lower attaching portion 222 are sleeved on the periphery of the output shaft, and the concave waterproof cavity 223 extends to the radial outer side of the output shaft. Specifically, the end faces of the upper attaching portion 221 and the lower attaching portion 222 in contact with the surface of the output shaft are narrowed, so that the contact area between the contact portion 220 and the surface of the output shaft can be reduced, and the contact friction force between the two can be reduced, thereby preventing the waterproof component from influencing the power output of the waterproof electric drive output device. Contact friction between the contact part 220 and the surface of the output shaft can be reduced, contact loss of the contact part 220 is reduced, and the service life of the output shaft waterproof structure is prolonged. The upper attaching portion 221 and the lower attaching portion 222 are coated with lubricating oil when being sleeved with the output shaft, so that the contact friction force between the output shaft and the upper attaching portion 222 and the contact friction force between the output shaft and the lower attaching portion 222 are further reduced, and the service life is prolonged.

And the waterproof chamber 223 of indent is located between laminating portion 221 and lower laminating portion 222, and when waterproof electricity driven output device work intensifies, inside heat can transmit to the waterproof chamber 223 of indent in, makes the waterproof chamber 223 of indent and the waterproof inside pressure intensity of electrically driven output device increase. According to the principle that the volume is unchanged, the temperature rises and the air pressure is increased, the air pressure inside the waterproof electric drive output device and the air pressure inside the concave waterproof cavity 223 are increased, and the function of preventing external liquid from entering the concave waterproof cavity 223 is achieved. After the instant external liquid pressure intensity is increased to enter the concave waterproof cavity 223, the concave waterproof cavity 223 can also play the role of water storage, and the liquid is prevented from permeating into the waterproof electric drive output device at once.

It should be understood that the contact portion 220 forms the upper attaching portion 221 and the lower attaching portion 222 not only, but in other embodiments, the contact portion 220 may be branched to form three, four, or five attaching portions according to actual production requirements, and the concave waterproof cavities 223 are formed between adjacent attaching portions, so as to increase the number of waterproof sealing layers between the contact portion 220 and the output shaft, and improve the waterproof performance. The utility model discloses specific structure to contact site 220 differs a perk, should understand, does not deviate from the utility model discloses under the prerequisite of basic concept, the nimble transform of specific structure of contact site 220 all should be regarded as being in the utility model discloses within the scope of protection of injecing.

In some embodiments of the present invention, as shown in fig. 3, in order to ensure that the waterproof effect of the upper attaching portion 221 and the lower attaching portion 222 of the contact portion 220 are consistent, the diameter of the upper attaching portion 221 and the diameter of the lower attaching portion 222 are equal. The diameters of the upper bonding portion 221 and the lower bonding portion 222 are 1.7mm, 1.8mm, 1.9mm or the like, and are adapted according to the diameters of output shafts of different specifications.

In some embodiments of the present invention, as shown in fig. 1 and 3, the thickness of the resilient portion 210 is greater than the top thickness of the flashing body 100. Specifically, the section of the springback portion 210 is spherical, the thickness of the springback portion 210 is greater than the wall thickness of the waterproof body 100, so that the elastic deformation effect of the springback portion 210 is increased, the elastic acting force of the springback portion 210 is increased, and the contact portion 220 is in closer contact with the output shaft.

In some embodiments of the present invention, the waterproof member 100 is made of an elastic rubber material. Specifically, the elastic rubber material is nitrile rubber, silicone rubber, butadiene rubber or the like. The utility model discloses not giving unnecessary details one by one to the kind of elasticity rubber material, should understand, not deviating from the utility model discloses under the prerequisite of basic concept, the nimble transform of kind of elasticity rubber material all should be regarded as within the utility model discloses within the scope of protection injectd.

In some embodiments of the present invention, the elastic flashing portion 200 is integrally formed with the flashing body 100. The elastic waterproof portion 200 and the waterproof member body 100 are integrally formed to increase the overall waterproof performance of the output shaft waterproof structure.

In some embodiments of the present invention, as shown in fig. 1, 2 and 4, the periphery of the waterproof member body 100 is provided with a circle of limiting portion 120, the limiting portion 120 extends outward perpendicular to the side wall of the waterproof member body 100, and the limiting portion 120 is used to prevent the waterproof member body 100 from deviating from the output shaft during use.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An output shaft waterproof structure is applied to a joint between a driving mechanism and an output shaft and is characterized by comprising a waterproof piece body (100), wherein the waterproof piece body (100) is of a U-shaped structure, and an output shaft hole position (110) is formed by opening a hole in the middle of the waterproof piece body (100);

the periphery of the middle of the waterproof piece body (100) is provided with a circle of elastic waterproof part (200), and the elastic waterproof part (200) is used for wrapping the surface of the output shaft and preventing external liquid from entering the driving mechanism from a gap of the output shaft.

2. The output shaft waterproof structure according to claim 1, wherein the elastic waterproof portion (200) includes a spring back portion (210) and a contact portion (220), and the contact portion (220) and the spring back portion (210) are provided in this order from the middle opening to the outer ring of the waterproof body (100).

3. The output shaft waterproof structure according to claim 2, characterized in that the contact portion (220) is of a Y-shaped design, and the direction in which the contact portion (220) diverges fits the surface of the output shaft.

4. The output shaft waterproof structure according to claim 3, characterized in that the contact portion (220) includes an upper attaching portion (221) and a lower attaching portion (222), and a concave waterproof chamber (223) is formed between the upper attaching portion (221) and the lower attaching portion (222);

when the output shaft is assembled with the contact part (220), the upper attaching part (221) and the lower attaching part (222) are sleeved on the periphery of the output shaft, and the inwards concave waterproof cavity (223) extends towards the radial outer side of the output shaft.

5. The output shaft waterproof structure according to claim 4, wherein a diameter of the upper attaching portion (221) is equal to a diameter of the lower attaching portion (222).

6. The output shaft waterproofing structure according to claim 2, wherein the thickness of the resilient portion (210) is larger than the top thickness of the waterproof member body (100).

7. The waterproof structure for an output shaft according to any one of claims 1 to 6, wherein the waterproof member body (100) is made of an elastic rubber material.

8. The output shaft waterproofing structure according to any one of claims 1 to 6, wherein the elastic waterproofing portion (200) is integrally molded with the waterproof member body (100).

9. The output shaft waterproof structure according to any one of claims 1 to 6, wherein a circle of limiting portion (120) is provided on a periphery of the waterproof member body (100), the limiting portion (120) extends outwards perpendicular to a side wall of the waterproof member body (100), and the limiting portion (120) is used for preventing the waterproof member body (100) from shifting during the use of connecting with the output shaft.

10. A watertight electrical drive output, comprising the output shaft watertight construction of any one of claims 1 to 9.