WO2013166925A1

WO2013166925A1 - Oil drain valve

Info

Publication number: WO2013166925A1
Application number: PCT/CN2013/074822
Authority: WO
Inventors: 王正东
Original assignee: 广州顺爽贸易有限公司
Priority date: 2012-05-09
Filing date: 2013-04-26
Publication date: 2013-11-14
Also published as: CN202561413U

Abstract

An oil drain valve comprises: an oil drain connector (1), the inside thereof being hollow and provided with a sealing area (11) to form a first accommodation space (12), the first accommodation space being formed by a small end accommodation space (121) at the upper portion and a large end accommodation space (122) at the lower portion, first oil inlets (13) communicating with the first accommodation space being positioned at the top and on two sides of the oil drain connector, and an oil outlet (15) communicating with the first accommodation space being positioned at the bottom of the oil drain connector; a stopping part (5), being connected with one end, of the oil drain connector at a fixed location, which is provided with the oil outlet, and having an oil drain hole (54) positioned thereon; and an adjusting mechanism, arranged in the first accommodation space of the oil drain connector, and comprising a valve core (2) and an elastic assembly (3), the lower end of the valve core being positioned in the large end accommodation space, a butt joint end (24) attached to the stopping part being arranged at the lower end of the valve core, the bottom of the butt joint end being sleeved in the oil drain hole of the stopping part, and the elastic assembly being sleeved at the upper end of the valve core. The valve core of the oil drain valve is positioned in the large end accommodation space, so accommodation spaces and flow channels of machine oil are enlarged, thereby accelerating the oil drain speed of a machine case, and improving work efficiency of oil drainage.

Description

Oil drain valve

The invention relates to an oil draining device used when the engine oil is leaked in the vehicle body. Background technique

The prior art oil draining device includes a drain connector and an adjustment structure, and the adjustment mechanism includes a spool and an elastic component. The valve core is built in the small end accommodation space of the oil discharge joint, so that the oil displacement space of the oil discharge joint is small, and the flow passage of the oil oil is also small, which causes the oil discharge speed to be slow, and the drainage work efficiency is low. Summary of the invention

It is an object of the present invention to provide a drain valve that has a faster draining speed.

According to an aspect of the invention, a drain valve is provided, comprising:

The oil draining joint is hollow and has a sealing area to form a first accommodating space. The first accommodating space is composed of a small end accommodating space at the upper part and a large end accommodating space at the lower part, and the top of the oil drain joint is provided. The first oil inlet hole communicates with the first accommodating space, the second oil inlet hole communicates with the first accommodating space on both sides, and the oil outlet hole communicates with the first accommodating space at the bottom; the stopper Positioning connection with one end of the oil discharge joint having an oil outlet hole, and a drain hole on the stopper; an adjustment mechanism disposed in the first accommodation space of the oil discharge joint, including a valve core and an elastic component, the lower end of the valve core The utility model is built in the large end accommodating space, and the lower end of the valve core is provided with a butt end which is matched with the stopper. The bottom of the butt end is sleeved in the drain hole of the stopper, and the elastic component is sleeved at the upper end of the valve core. In the invention, the lower end of the valve core is built in the large end receiving space of the oil discharge joint, so that the large end receiving space of the oil discharge joint can also accommodate the oil, thereby increasing the space for accommodating the oil. When the oil is drained, the bottom of the butt end of the spool is completely separated from the drain hole of the stopper, which expands the flow passage of the oil, thereby speeding up the oil discharge and improving the efficiency of the draining work.

In some embodiments, a stop block that is positioned in contact with the top of the oil drain connector may be included, and a second oil inlet hole is provided on the stop block. The stop block improves the sealing of the oil drain connector and prevents debris from falling into the oil drain connector.

In some embodiments, the outer wall of the oil drain joint may be in the shape of a five-fluted plum. Specifically, the outer wall of the lower end of the oil discharge joint is provided with five inwardly concave semi-cylindrical grooves, so that the lower end of the oil discharge joint has a cross section of a quincunx shape. As a result, the oil drain connector requires a specific tool to be disassembled, preventing the oil drain connector from easily coming out of the chassis and causing oil leakage.

In some embodiments, a sealing jaw may also be included, the sealing jaw being sleeved at the spool butt end. The sealing 圏 is added to improve the sealing effect of the valve core and effectively prevent oil leakage.

In some embodiments, the spool longitudinal section can be a tall cup shape. Specifically, the upper end is U-shaped and the lower end is T-shaped. Thereby, the upper end of the valve core can closely fit the inner wall of the oil drain joint receiving space, It plays a guiding role to prevent the running position, and the lower end is closely fitted with the inner wall of the stopper to seal the oil and prevent oil leakage.

In some embodiments, the upper end of the spool may be provided with a sealing zone to form a blind bore chamber. This increases the oil content of the oil drain joint and increases the oil drain rate.

In some embodiments, the upper end of the spool may be provided with oil outlets communicating with the blind bore chamber on both sides. Thereby, the speed at which the oil flows to the drain hole is increased, and the draining speed is increased.

In some embodiments, the upper end of the spool may be in close contact with the inner wall of the small end receiving space of the drain connector. Therefore, the spool can be operated with the small end receiving space as the guiding hole to prevent the running position, and effectively avoid the problem of oil leakage due to the spool running position.

In some embodiments, the stopper may be hollow inside, and a sealing portion is disposed in the middle, so that the upper end of the stopper has a second accommodating space, the lower end has a third accommodating space, and the oil drain hole is disposed on the sealing area. The second accommodating space on the blocking member is built in the large end accommodating space of the oil draining joint and communicates with the two, and the upper end of the valve core is built in the second accommodating space of the stopping member, and is close to the inner wall of the second accommodating space of the stopping member. fit. The upper end of the valve core is built in the second accommodating space of the stopper, and the second accommodating space of the stopper is a guiding hole, which reduces the accommodating space occupied by the valve core in the oil drain valve joint, and increases the oil drain joint. The oil space is increased, which in turn increases the oil drain rate. In some embodiments, the inner wall of the blind bore chamber can be provided with a tab that grips the resilient component. The lug is used to clamp the elastic component that is placed inside, so that the elastic component can be fixed so that it cannot be moved. DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing the structure of an oil discharge valve according to an embodiment of the present invention.

Figure 2 is an exploded perspective view of the oil drain valve of Figure 1.

Figure 3 is a cross-sectional view of the oil drain connector shown in Figure 1.

Figure 4 is a cross-sectional view of the spool shown in Figure 1.

FIG. 5 is a schematic structural view of a drain valve according to another embodiment of the present invention.

Figure 6 is a plan view of the spool shown in Figure 5.

Figure 7 is a cross-sectional view taken along line A-A of Figure 6. detailed description

The invention will now be described in further detail with reference to the accompanying drawings.

Fig. 1 schematically shows a drain valve in accordance with an embodiment of the present invention.

As shown in FIGS. 1 and 2, the oil discharge valve includes an oil discharge joint 1, an adjustment mechanism, a stopper 5, and a stopper 6. The adjustment mechanism includes a valve body 2 and an elastic component. In this embodiment, the elastic component is a spring 3. The oil drain joint 1 is provided with a sealing portion 11 to form a first accommodating space 12. The longitudinal section of the oil discharge joint 1 has a convex shape, and the first accommodating space 12 is composed of a small end accommodating space 121 and a large end accommodating space 122, and the two are in communication. The spool 2 and the spring 3 are built in the first accommodating space 12. In this embodiment, the outer end of the stop block 6 is provided. The inner wall of the upper end of the small-end accommodating space 121 is provided with an internal thread, and the stopper 6 is fixed in the small-end accommodating space 121 by a screw connection. The inner wall of the lower end of the large end accommodating space 122 is provided with an internal thread, and the outer wall of the upper end of the stopper member 5 is provided with an external thread, and the two are fixed by a screw connection.

As shown in FIG. 3, the top of the oil draining joint 1 has a first oil inlet hole 13 communicating with the small end receiving space 121, and two first oil inlet holes communicating with the small end receiving space 121 on both sides. 14. The bottom portion has an oil outlet hole 15 communicating with the large end receiving space 122. The outer wall of the large end accommodating space 122 is provided with five inwardly concave semi-cylindrical recesses 16 such that the cross section of the lower end of the oil discharge joint 1 is a quincunx shape, thereby requiring the oil drain joint to be disassembled by a specific tool. The oil draining joint is prevented from being easily detached from the casing to cause oil leakage. As shown in FIG. 1 , the stopper 5 is hollow, and a sealing portion 51 having a longitudinal cross section is provided in the middle so that the upper end of the stopper 5 has an external connection. The second accommodating space 52 has a third accommodating space 53 connected to the outside. The upper end of the stopper 5 is built in the large end accommodating space 122, so that the second accommodating space 52 is also placed in the large end accommodating space 122 and communicated with each other. An oil drain hole 54 is formed in the sealing portion 51. The oil drain hole 54 allows the second accommodating space 52 to communicate with the third accommodating space 53.

As shown in FIGS. 1 and 4, the longitudinal section of the spool 2 is a goblet shape, specifically, a U-shape at the upper end and a T-shape at the lower end, thereby allowing the upper end and the small end of the spool 2 to accommodate the space 121. The inner wall is closely fitted, and the small end receiving space 121 is used as a guiding hole during operation to prevent the running position, and the butt end 24 provided at the lower end can be attached to the sealing portion 51 to prevent oil leakage. In this embodiment, the longitudinal end section of the butt end 24 is an I-shaped shape, and the receiving space 241 is disposed in the middle, and the sealing jaw 4 is sleeved in the accommodating space 241 and is fitted to the sealing area 51. The bottom of the pair of terminals 24 is a top contact end 242, and the top contact end 242 is sleeved in the drain hole 54. The longitudinal contact end 242 has a trapezoidal longitudinal section which is large and small, so that when the spool 2 is operated, the small end portion of the top contact end 242 is firstly inserted into the drain hole 54, thereby guiding the valve core 2 to be misaligned. The upper end of the spool 2 is provided with a sealing portion 21 to form a blind hole chamber 22, and the chamber 22 communicates with the small end receiving space 121 for accommodating the oil. The periphery of the upper end of the spool 2 has four circular oil outlets 23 communicating with the chamber 22.

As shown in FIG. 1 , the longitudinal section of the stopper 6 is rectangular, so that the stopper 6 can be closely fitted to the inner wall of the small-end accommodating space 121, thereby improving the sealing property of the oil drain joint 1 and preventing the debris from falling into the space. A blockage is caused in the oil joint 1. A stopper hole 6 is provided with a second oil inlet hole 61.

As shown in Fig. 1, the spring 3 is integrally fitted outside the upper end of the spool 2, and the upper end is in contact with the inner wall of the large-end accommodation space 122.

The oil drain valve of the present invention is generally disposed at the bottom of the oil tank. When the oil is required to be drained, the thrust is applied to the top end 242 - the upward thrust, the spool 2 is jacked up, the spring 3 is compressed, the sealing jaw 4 is separated from the sealing portion 51, and the top contact end 242 of the spool 2 is separated from the drain hole 54, The oil flows from the second oil inlet hole 61 and the first oil inlet hole 14 into the small end accommodating space 121 and the chamber 22, and then flows into the large end accommodating space 122 and the second accommodating space 52 through the oil outlet port 23, Finally, it is discharged from the oil drain hole 54. After the oil drain is completed, the thrust applied to the top contact end 242 is canceled. Under the action of the spring 3 resilience, the valve core 2 is quickly returned, and the sealing jaw 4 is fitted to the sealing portion 51 to seal the oil drain hole 54 to prevent oil leakage. . Fig. 5 is a schematic view showing the structure of a drain valve according to another embodiment of the present invention. As shown in FIG. 5, 6 and 7, the upper end of the valve body 2 is changed to be completely built into the second accommodating space 52, and the outer wall of the valve body 2 is closely fitted with the inner wall of the second accommodating space 52, and the second accommodating space is used during operation. 52 is a guiding hole to prevent running. The oil outlet 23 is changed to a rectangular oil outlet 25 that penetrates the upper end of the valve body 2, and the four oil outlets 25 divide the sealing portion 21 into four portions. The inner wall of the sealing portion 21 is provided with four protrusions 26 for clamping the elastic components. The surface of the protrusions 26 that is attached to the elastic component is a circular arc surface, thereby making the inner side surface of the convex block 26 and the outer side of the elastic component The surface is tightly fitted to strengthen the clamping action of the elastic components and prevent the elastic components from coming loose. In this embodiment, the elastic component is a spring 3, and one end of the spring is sleeved in the chamber 22, and is clamped by the protrusion 26, and the other end is in contact with the inner wall of the large end receiving space 122.

When draining is required, the top end 242 is applied to the upward thrust, the spool 2 is jacked up, the spring 3 is compressed, the sealing jaw 4 is separated from the sealing zone 51, the top contact end 242 is separated from the drain hole 54, and the oil is removed from the second The oil inlet hole 61 and the first oil inlet hole 14 flow into the small end accommodating space 121 and the chamber 22, and then flow into the large end accommodating space 122 and the second accommodating space 52 through the oil outlet port 25, and finally drain from the oil. The hole 54 is vented. After the oil drain is completed, the thrust applied to the top contact end 242 is cancelled. Under the action of the spring force of the spring 3, the valve core 2 is quickly returned, and the sealing jaw 4 is fitted to the sealing portion 51 to seal the oil drain hole 54 to prevent leakage. oil.

What has been described above is only some embodiments of the invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and scope of the invention.

Claims

Claim

1. A drain valve, characterized in that it comprises:

The oil draining joint is hollow and has a sealing area to form a first accommodating space. The first accommodating space is composed of a small end accommodating space located at an upper portion and a large end accommodating space at a lower portion, and an oil draining joint a first oil inlet hole communicating with the first accommodating space is disposed on the top and the two sides, and an oil outlet hole communicating with the first accommodating space is disposed at the bottom portion;

The stopper is positioned and connected to one end of the oil discharge joint having an oil outlet, the stopper is provided with a drain hole; the adjusting mechanism disposed in the first receiving space of the oil drain joint, including the valve core and the elastic The lower end of the valve core is built in the large end receiving space, and the lower end of the valve core is provided with a mating end which is matched with the stopper. The bottom of the butt end is sleeved in the drain hole of the stopper, and the elastic component is sleeved at the upper end of the valve core.

2. The oil drain valve according to claim 1, further comprising a stop block positioned in contact with the top of the oil drain joint, the stop block being provided with a second oil inlet hole.

The oil drain valve according to claim 1, wherein the outer wall of the oil drain joint has a five-fluted plum shape.

4. The oil drain valve of claim 1 further comprising a sealing jaw sleeved to the butt end of the spool.

The oil drain valve according to any one of claims 1 to 4, wherein the longitudinal cross section of the valve body is a goblet shape.

The oil drain valve according to claim 5, wherein the upper end of the valve core is provided with a sealing area to form a blind hole type chamber.

The oil drain valve according to claim 6, wherein both sides of the upper end of the valve core are provided with an oil outlet communicating with the blind hole type chamber.

The oil drain valve according to claim 7, wherein the upper end of the valve body is in close contact with the inner wall of the small end receiving space of the oil discharge joint.

The oil drain valve according to claim 7, wherein the stopper is hollow, and a sealing portion is arranged in the middle, so that the upper end of the stopper has a second accommodating space, and the lower end has a third accommodating Space, place The oil drain hole is disposed on the sealing area, and the second accommodating space on the stopper is built in the large end accommodating space of the oil drain joint and communicates with the two, and the upper end of the valve core is built in the second accommodating space of the stopper And closely adhering to the inner wall of the second accommodating space of the stopper. 10. The oil drain valve according to claim 9, wherein the inner wall of the blind hole chamber is provided with a projection that clamps the elastic component.