CN220286533U

CN220286533U - Oil drain valve

Info

Publication number: CN220286533U
Application number: CN202321878000.2U
Authority: CN
Inventors: 张党生; 陈家成; 黎东; 钟荣辉
Original assignee: Guangzhou Shuangqiang Electromechanical Equipment Co ltd
Current assignee: Guangzhou Shuangqiang Electromechanical Equipment Co ltd
Priority date: 2023-07-17
Filing date: 2023-07-17
Publication date: 2024-01-02
Anticipated expiration: 2033-07-17

Abstract

The application discloses an oil drain valve, which comprises an inlet and outlet unit, a plugging unit, and a valve inlet arranged on the inlet and outlet unit; the outlet unit is provided with a valve outlet, and the inlet unit and the outlet unit enclose a movement space; the blocking unit moves in the movement space to isolate or communicate the valve inlet with the valve outlet. In the application, the oil discharge valve is arranged on the fan, and the blocking unit is normally closed in an initial state, so that insects and mice are prevented from entering the fan along the oil discharge valve; in the initial stage of the operation of the fan, along with the increase of wind pressure in the fan, the movement space is communicated with the valve inlet, and when the wind pressure is not increased to the extent that the plugging unit reaches the valve outlet, the oil water can be discharged along the valve outlet under the action of wind; when the fan finishes running, along with the gradual reduction of wind pressure, the shutoff unit resets gradually, and in the resetting process, oil and water can discharge again, satisfies the fan and only opens and close the in-process and carry out oil and water discharge's demand, avoids wind energy loss.

Description

Oil drain valve

Technical Field

The application relates to the field of valves, in particular to an oil discharge valve.

Background

In the use process of the fan, the residual oil water in the fan needs to be discharged, so that an oil discharge valve needs to be arranged. Meanwhile, the fan is not required to continuously discharge oil water for a long time in the use process, the requirement can be met only by intensively discharging when the fan is started and closed, and the generated wind is easily discharged out of the fan along the oil discharge valve together due to the continuous oil water discharge, so that the wind energy is wasted.

The Chinese patent document CN206797361U discloses a hydraulic opening type oil discharging one-way valve for a hydraulic retarder, the blocking effect of a steel ball on a liquid inlet cavity is regulated by a spring, but the opening of the liquid outlet cavity is normally open, and if the hydraulic opening type oil discharging one-way valve is applied to a fan, oil discharging can not be carried out only when the fan is opened and closed.

Disclosure of Invention

In order to solve at least one of the above technical problems, the present application provides an oil drain valve, which adopts the following technical scheme:

the application provides an oil drain valve, which comprises an inlet connection unit, an outlet connection unit and a blocking unit, wherein a valve inlet is arranged on the inlet connection unit; the outlet unit is provided with a valve outlet, and the inlet unit and the outlet unit enclose a movement space; the blocking unit moves in the movement space to isolate or communicate the valve inlet with the valve outlet, the blocking unit can block oil from entering the movement space when the blocking unit blocks the valve inlet, and the blocking unit can block oil from entering the valve outlet when the blocking unit blocks the valve outlet.

Embodiments of the present application have at least the following beneficial effects: in the application, the oil discharge valve is arranged on the fan, the plugging unit is normally closed in an initial state and is plugged at the position of the inlet of the valve, so that insects and mice are prevented from entering the fan along the oil discharge valve; in the initial stage of the operation of the fan, the plugging unit moves in the movement space along with the increase of wind pressure in the fan, so that the movement space is communicated with the valve inlet, and when the wind pressure is not increased to the extent that the plugging unit reaches the valve outlet, the valve outlet is still communicated with the movement space, and oil water can be discharged along the valve outlet under the action of wind; in the normal running process of the fan, the blocking unit is blocked at the valve outlet, and at the moment, the oil water is not discharged, so that the loss of wind energy is avoided; when the fan finishes running, along with the gradual reduction of wind pressure, the shutoff unit resets gradually, and in the resetting process, when the shutoff unit all does not contact with valve import, valve export, the oil water can discharge once more, until the shutoff unit resets to the valve import completely, stops discharging the oil water, satisfies the fan and only carries out oil water exhaust demand at opening and the in-process that closes, avoids wind energy loss.

In some embodiments of the present application, an elastic structure is disposed on the plugging unit, a first end of the elastic structure is connected with the plugging unit, and a second end of the elastic structure is connected with the outlet unit.

In some embodiments of the present application, the outlet unit is provided with an extension portion, the extension portion extends toward the inlet unit, the valve outlet is disposed on the extension portion, and the second end of the elastic structure is sleeved around the extension portion.

In some embodiments of the present application, the oil drain valve further includes a connection unit, a first end of the connection unit is detachably connected to the inlet connection unit, and a second end of the connection unit is detachably connected to the outlet connection unit;

the inlet unit, the outlet unit and the connecting unit jointly enclose the movement space.

In some embodiments of the present application, a first installation portion is disposed on the access unit, a second installation portion is disposed on the exit unit, and the first installation portion, the second installation portion and the connection unit are sleeved with each other.

In some embodiments of the present application, the connection unit is sleeved on the outer side of the first installation part, and the connection unit is sleeved on the outer side of the second installation part;

the inner wall of the connecting unit is provided with internal threads, the outer walls of the first installation part and the second installation part are respectively provided with external threads, the first installation part is in threaded connection with the connecting unit, and the second installation part is in threaded connection with the connecting unit.

In some embodiments of the present application, the first mounting portion is sleeved on the outer side of the connection unit, and the second mounting portion is sleeved on the outer side of the connection unit;

the outer wall of the connecting unit is provided with external threads, the inner walls of the first installation part and the second installation part are respectively provided with internal threads, the first installation part is in threaded connection with the connecting unit, and the second installation part is in threaded connection with the connecting unit.

In certain embodiments of the present application, the plugging unit is configured as a spherical structure having a diameter greater than the inner diameter of the valve inlet and a diameter greater than the inner diameter of the valve outlet.

In certain embodiments of the present application, the outer diameter of the second end of the resilient structure is greater than the outer diameter of the first end of the resilient structure.

In some embodiments of the present application, the side wall of the access unit is provided with a connection structure, and the access unit can be connected with the fan through the connection structure.

Additional aspects and advantages of the application 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 application.

Drawings

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

FIG. 1 is a schematic view of the structure of the oil drain valve of the present application;

fig. 2 is a cross-sectional view of the oil drain valve of the present application.

Reference numerals:

an access unit 101; a valve inlet 102; a connection structure 103; a first mounting portion 104;

an outgoing connection unit 201; a valve outlet 202; a movement space 203; an extension 204; a second mounting portion 205;

a plugging unit 301; an elastic structure 302;

a connection unit 401.

Detailed Description

This section will describe embodiments of the present application in detail with reference to fig. 1-2, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that, if the terms "center," "middle," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships are based on the orientations or positional relationships illustrated in the drawings, it is merely for convenience in describing the present application and simplifying the description, and it does not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. Features defining "first", "second" are used to distinguish feature names from special meanings, and furthermore, features defining "first", "second" may explicitly or implicitly include one or more such features. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

As shown in fig. 1, an embodiment of the present application provides an oil drain valve, which includes an inlet unit 101, an outlet unit 201, and a blocking unit 301. The inlet and outlet units 101 and 201 are communicated with each other, and when the inlet and outlet units 101 and 201 are also communicated with each other, oil water can pass through the inlet and outlet units 101 and 201 successively under the driving of wind due to the large wind pressure in the fan, and finally is discharged. It will be appreciated that during the process of discharging the oil and water, part of the wind formed by the fan is also discharged together, which may cause loss of wind energy.

Further, the plugging unit 301 is located between the inlet unit 101 and the outlet unit 201, and defines the communication condition between the inlet unit 101 and the outlet unit 201 by its own movement. The plugging unit 301 enables the inlet unit 101 to be communicated with the outlet unit 201 at the initial stage of fan start and when the fan is closed, that is, the oil and water can be discharged at the initial stage of fan start and when the fan is closed, so as to meet the oil discharge requirement of the fan. The continuous oil-water discharge during the normal operation of the fan is avoided, and a large amount of wind energy loss is caused.

As shown in fig. 2, in some examples, to ensure that the oil and water can be introduced from the fan into the inlet unit 101, a valve inlet 102 is provided on the inlet unit 101, and the valve inlet 102 communicates with the fan.

Further, the access unit 101 is formed into a tubular structure, and a hollow portion of the tubular structure is the valve inlet 102.

In some examples, the access unit 101 needs to be connected to the fan and communicate with the inner space of the fan, and in order to ensure connection stability of the access unit 101, a connection structure 103 is provided on a side wall of the access unit 101. When the inlet and outlet unit 101 is connected to the fan through the connection structure 103, the inlet and outlet unit 101 and the fan can be guaranteed to be sealed well, on one hand, wind generated by the fan is prevented from running off along a gap between the inlet and outlet unit 101 and the fan, and on the other hand, the oil-water discharging process is also prevented from overflowing along the gap between the inlet and outlet unit 101 and the fan, so that the surrounding environment is polluted.

Wherein, the connection structure 103 is a threaded structure, and the fan opening is correspondingly provided with a threaded structure, so that the access unit 101 is connected to the fan through threaded fit. At this time, the connection structure 103 may be an external thread on the outer wall of the access unit 101, and an internal thread is disposed at the opening of the fan; alternatively, the connection structure 103 is an internal thread on the inner wall of the access unit 101, the fan opening is provided with an extension structure, and the outer wall of the extension structure is provided with an external thread to form a threaded connection.

Specifically, the connection structure 103 may also adopt a sealing member, for example, a sealing ring, where the sealing ring surrounds the side wall of the inlet unit 101, and the inlet unit 101 is connected to the opening of the fan through plugging, so that the sealing performance between the fan and the inlet unit 101 is ensured under the action of the sealing ring.

The outlet unit 201 is provided with a valve outlet 202, and further, the outlet unit 201 is formed into a tubular structure, and a hollow portion of the tubular structure is the valve outlet 202. The access unit 101 and the exit unit 201 enclose a movement space 203, and the blocking unit 301 moves in the movement space 203, thereby defining the communication condition of the access unit 101 and the exit unit 201. Specifically, the inner diameter of the valve outlet 202 is approximately equal to and on the same axis as the inner diameter of the valve inlet 102.

Wherein, the access unit 101 and the exit unit 201 are detachably connected, so as to facilitate maintenance and replacement of the plugging unit 301 in the movement space 203.

The inlet unit 101 and the outlet unit 201 define the movement limit position of the blocking unit 301 during the movement of the blocking unit 301 in the movement space 203. When the blocking unit 301 is at two extreme positions, the blocking unit 301 blocks the valve inlet 102 and the valve outlet 202 respectively, and at this time, the oil drain valve stops draining oil water.

When the air pressure is not increased to the extent that the blocking unit 301 reaches the valve outlet 202, the valve outlet 202 is also communicated with the moving space 203, namely the valve inlet 102 is communicated with the valve outlet 202, and oil water is discharged along the valve outlet 202 under the action of wind.

Along with the gradual increase of the wind pressure to the second pressure, the fan normally operates, the blocking unit 301 blocks the valve outlet 202, the valve inlet 102 is not communicated with the valve outlet 202, and at the moment, oil and water are not discharged, so that wind energy is prevented from being lost.

When the fan is finished, the wind pressure gradually decreases from the second pressure to the first pressure, the blocking unit 301 gradually resets, and in the resetting process, the valve inlet 102 is communicated with the valve outlet 202 again, and the oil water can be discharged. Until the wind pressure is reduced below the first pressure, the plugging unit 301 is completely reset to the valve inlet 102, and the oil-water discharge is stopped, so that the requirement that the fan only discharges the oil-water in the opening and closing processes is met.

Specifically, the first pressure is set to 200Pa, and the second pressure is set to 500Pa.

In some examples, the occlusion unit 301 may be provided in a variety of shapes, in particular, the occlusion unit 301 is provided in a spherical structure. And the plugging unit 301 is hollow, so that the gravity of the plugging unit 301 is prevented from influencing the movement of the plugging unit 301.

It will be appreciated that to avoid plugging failure by plugging unit 301 being embedded into valve inlet 102 or valve outlet 202 during movement, the diameter of plugging unit 301 is greater than the inner diameter of valve inlet 102 or valve outlet 202. When the closing unit 301 reaches the extreme position, a small part of the physical structure of the closing unit 301 enters the valve inlet 102 or the valve outlet 202, while a large part of the physical structure remains in the movement space 203.

In some examples, the plugging unit 301 is provided with an elastic structure 302, and the elastic structure 302 is capable of being elastically deformed. Further, a first end of the elastic structure 302 is connected to the plugging unit 301, and a second end of the elastic structure 302 is connected to the outlet unit 201. Specifically, the elastic structure 302 employs a spring.

Under the natural state of the oil drain valve, the elastic structure 302 pushes the blocking unit 301 to the valve inlet 102, so that the oil drain valve is in a normally closed state, and external insects, mice and the like are prevented from entering the fan along the oil drain valve; at the beginning of the operation of the fan, as the wind pressure is increased to the first pressure, the blocking unit 301 moves towards the direction of the valve outlet 202 against the elasticity of the elastic structure 302, at this time, the elastic structure 302 is continuously compressed, and the elastic structure 302 has the function of enabling the blocking unit 301 to slowly move; when the wind pressure reaches above the second pressure, the elastic structure 302 is compressed to the maximum extent, and the blocking unit 301 blocks the valve outlet 202; when the fan finishes running, the wind pressure is continuously reduced, and the elastic structure 302 drives the plugging unit 301 to reset to the position under the natural state through elasticity.

In some examples, there is still a certain length due to the elastic structure 302 being compressed to a limit, at which time the length of the elastic structure 302 may cause a certain gap between the plugging unit 301 and the outlet unit 201, resulting in a decrease in the effectiveness of plugging. Therefore, the extension part 204 is disposed on the outlet unit 201, the extension part 204 extends in the direction of the inlet unit 101 in the movement space 203, and the elastic structure 302 is sleeved around the extension part 204, so as to eliminate the influence of the length of the elastic structure 302.

It can be appreciated that the length of the extension 204 can be set according to the requirement, and when a longer oil drain time is required, a smaller length of the extension 204 is set; where a shorter drain time is required, a greater extension 204 length is provided.

In some examples, the diameter of the plugging unit 301 is set according to the need, the smaller the diameter setting of the plugging unit 301, the larger the effective volume of the movement space 203, when the volume of the movement space 203 is fixed. When the diameter of the plugging unit 301 is smaller, in order to ensure that the plugging unit 301 is firmly connected to the elastic structure 302, the outer diameter of the first end of the elastic structure 302 is smaller than the outer diameter of the second end of the elastic structure 302. Wherein, when the elastic structure 302 is configured as a spring, the outer diameter of the first end to the second end of the spring gradually increases, and the spring is formed into a conical structure.

In some examples, the oil drain valve further includes a connection unit 401, and the connection unit 401 is connected to the inlet connection unit 101 and the outlet connection unit 201, respectively, so that the inlet connection unit 101 and the outlet connection unit 201 form a whole.

Further, the first end of the connection unit 401 is detachably connected to the inlet unit 101, and the second end of the connection unit 401 is detachably connected to the outlet unit 201, so as to indirectly form the detachable connection between the inlet unit 101 and the outlet unit 201. At this time, the access unit 101, the access unit 201, and the connection unit 401 enclose a relatively closed movement space 203.

In some examples, to ensure the tightness and stability of the connection of the inlet unit 101, the outlet unit 201, and the connection unit 401, the side wall of the inlet unit 101 is provided with a first protruding portion, the first protruding portion surrounds the side wall of the inlet unit 101 for a circle, the first protruding portion is provided with a first mounting portion 104, and the first mounting portion 104 is connected with the connection unit 401 in a sleeved manner.

Further, the side wall of the outlet unit 201 is provided with a second protruding portion, the second protruding portion surrounds the side wall of the outlet unit 201 for a circle, the second protruding portion is provided with a second mounting portion 205, and the second mounting portion 205 is connected with the connection unit 401 in a sleeved mode.

In some examples, the outer diameters of the first and second mounting portions 104, 205 correspond to the inner diameter of the connection unit 401, and the connection unit 401 is sleeved outside the first mounting portion 104 and also sleeved outside the second mounting portion 205.

Wherein, the inner wall of the connection unit 401 is provided with internal threads, the outer walls of the first installation portion 104 and the second installation portion 205 are provided with external threads, and the internal threads and the external threads are engaged with each other, so that the connection unit 101, the connection unit 201 and the connection unit 401 are connected into a whole in a threaded connection manner, thereby forming a relatively airtight movement space 203.

It will be appreciated that in this case, to assist in axial positioning of the connection unit 401, flanges are provided on the outer sides of the first and second protruding portions, and the connection unit 401 can abut the flanges.

In some examples, the inner diameters of the first and second mounting portions 104, 205 correspond to the outer diameter of the connection unit 401, the first mounting portion 104 is sleeved outside the connection unit 401, and the second mounting portion 205 is sleeved outside the connection unit 401.

Wherein, the outer wall of the connection unit 401 is provided with external threads, and the inner walls of the first installation portion 104 and the second installation portion 205 are provided with internal threads, and the internal threads are engaged with the external threads, so that the connection unit 101, the connection unit 201 and the connection unit 401 are connected into a whole in a threaded connection manner, thereby forming a relatively airtight movement space 203.

In the description of the present specification, if a description appears with reference to the term "one embodiment," "some examples," "some embodiments," "an exemplary embodiment," "an example," "a particular example," or "some examples," etc., it is intended that the particular feature, structure, material, or characteristic described in connection with the embodiment or example be included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the present application have been described in detail above with reference to the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present application.

Claims

1. An oil drain valve, comprising:

the inlet and outlet unit is provided with a valve inlet;

the outlet connection unit is provided with a valve outlet, and the inlet connection unit and the outlet connection unit enclose a movement space;

the blocking unit moves in the movement space to isolate or communicate the valve inlet with the valve outlet, and can block oil from entering the movement space when the blocking unit blocks the valve inlet, and can block oil from entering the valve outlet when the blocking unit blocks the valve outlet.

2. The oil drain valve according to claim 1, wherein,

the plugging unit is provided with an elastic structure, a first end of the elastic structure is connected with the plugging unit, and a second end of the elastic structure is connected with the outlet unit.

3. The oil drain valve according to claim 2, wherein,

the outlet unit is provided with an extension part, the extension part extends towards the direction of the inlet unit, the valve outlet is arranged on the extension part, and the second end of the elastic structure is sleeved around the extension part.

4. The oil drain valve according to claim 1, wherein,

the oil drain valve further comprises a connecting unit, wherein the first end of the connecting unit is detachably connected with the inlet connecting unit, and the second end of the connecting unit is detachably connected with the outlet connecting unit;

5. The oil discharge valve as claimed in claim 4, wherein,

the inlet unit is provided with a first installation part, the outlet unit is provided with a second installation part, and the first installation part, the second installation part and the connection unit are mutually sleeved.

6. The oil discharge valve as claimed in claim 5, wherein,

the connecting unit is sleeved on the outer side of the first installation part, and the connecting unit is sleeved on the outer side of the second installation part;

7. The oil discharge valve as claimed in claim 5, wherein,

the first installation part is sleeved on the outer side of the connecting unit, and the second installation part is sleeved on the outer side of the connecting unit;

8. The oil drain valve according to claim 1, wherein,

the plugging unit is arranged into a spherical structure, the diameter of the spherical structure is larger than the inner diameter of the valve inlet, and the diameter of the spherical structure is larger than the inner diameter of the valve outlet.

9. The oil discharge valve according to claim 3, wherein,

the outer diameter of the second end of the elastic structure is larger than the outer diameter of the first end of the elastic structure.

10. The oil drain valve according to claim 1, wherein,

the side wall of the access unit is provided with a connecting structure, and the access unit can be connected with the fan through the connecting structure.