TWM592482U - Drain plug - Google Patents

Abstract

A drain plug is provided, which includes a connection portion, an operating portion and a filter element. A fluid inlet is formed on a bottom surface of the connection portion. The operating portion is connected to a top surface of the connection portion and has at least one fluid outlet. A fluid flowing path is formed in the drain plug and, in a direction parallel to a longitudinal axis, sequentially includes an upstream segment communicating with the fluid inlet, a mid-stream segment, and a downstream segment communicating the fluid outlet. A step surface connects a sidewall of the mid-stream segment to a sidewall of the downstream segment and forms a discontinuity surface therebetween. The filter element is positioned in the mid-stream segment.

Description

Drain plug

The present disclosure relates to a discharge plug, in particular to a discharge plug with high reliability.

The main function of the discharge plug is to be used with a drainage type sealing joint, or it is placed on the tail pipe to perform the discharge function. In general, when the drain plug is drained, the sewage to be discharged is not sufficiently filtered. After a long period of use, the impurities in the sewage are easy to accumulate in the drain plug, and the subsequent sewage cannot be quickly removed. In view of this, a discharge plug with the function of filtering impurities is required.

Some embodiments of the present disclosure provide a discharge plug, including: a connecting portion having a first-level inlet formed on a bottom surface of the connecting portion; an operating portion connecting a top surface of the connecting portion and having at least a first-level outlet, of which The channel is defined in the discharge plug, and the flow channel includes, in order along the long axis, an upstream segment connected to the inlet of the channel, a midstream segment, and a downstream segment connected to the outlet of the channel. The side wall is connected to the side wall of the downstream section by a stepped surface, the step surface and the side wall of the middle section and the side wall of the downstream section are respectively constructed Into a discontinuous surface; and a filter element, arranged in the middle section.

Since the discharge plug of the present disclosure is provided with a filter element inside, when sewage passes through the internal flow path of the discharge plug, impurities in the sewage will first pass through the filter element before discharging the discharge plug from the flow path outlet, so the flow path outlet can be blocked Improve, and then improve the reliability of the discharge plug.

1‧‧‧Drain plug

10‧‧‧Link

11‧‧‧Bottom

110‧‧‧Flower entrance

12‧‧‧Top

15‧‧‧Thread

20‧‧‧Operation Department

23‧‧‧Side

25, 26‧‧‧ Outlet

30‧‧‧Flower

31‧‧‧Upstream section

311‧‧‧Sidewall

312‧‧‧step surface

32‧‧‧ Midstream

321‧‧‧Side wall

322‧‧‧step surface

33‧‧‧ Downstream section

331‧‧‧Side wall

40‧‧‧Filter element

41‧‧‧Lower edge

42‧‧‧Upper edge

D‧‧‧Distance

L‧‧‧Long axis

W1, W2, W3‧‧‧Width

FIG. 1 shows a schematic diagram of a discharge plug according to an embodiment of the disclosure.

FIG. 2 shows a bottom view of the drain plug according to an embodiment of the present disclosure.

Figure 3 shows a cross-sectional view taken along the line A-A of Figure 2.

In the following, several specific preferred embodiments will be cited, and detailed descriptions will be made in conjunction with the attached drawings. The figures show several embodiments. However, the disclosure can be implemented in many different forms, and is not limited to the embodiments described below. The embodiments provided here can make the disclosure more thorough and complete, so as to fully convey the scope of the disclosure to the same field. By.

It must be understood that elements specifically described or illustrated may exist in various forms well known to those skilled in the art. In addition, when a component is on other components or "on", it may mean "directly" on it, or that there are other components interposed therebetween.

In addition, relative terms such as "lower" or "bottom" and "higher" or "top" may be used in the embodiments to describe the relative relationship of one element illustrated to another element. Understandably, if the picture If the device shown is turned upside down, the component on the "lower" side will become the component on the "higher" side.

FIG. 1 shows a schematic view of a discharge plug 1 according to an embodiment of the disclosure, and FIG. 2 shows a bottom view of the discharge plug 1 according to an embodiment of the disclosure. According to an embodiment of the present disclosure, the drain plug 1 includes a connecting portion 10, an operating portion 20 and a filter element 40. The components of the discharge plug 1 can be increased or decreased, and is not limited to this embodiment.

In one embodiment, the connecting portion 10 is a tubular structure, and extends from the bottom surface 11 along a long axis L to the top surface 12, wherein a flow inlet 110 (FIG. 2) is formed on the bottom surface 11 of the connecting portion 10. The outer wall of the connecting portion 10 has a screw thread 15. The discharge plug 1 is connected to the pipeline of the device by the screw thread 15, but this disclosure is not limited to this. In other embodiments, the thread 15 is omitted, and the discharge plug 1 can be connected to the pipeline of the device by tight fitting or other means.

In an embodiment, the discharge plug 1 is combined with a pipeline with an explosion-proof function. In order to make the discharge plug 1 also meet the safety specifications, the effective number of threads of the thread 15 is greater than or equal to 8, and the effective tooth length of the thread 15 is greater than or equal to 15 mm . However, it should be understood that the design features of the thread 15 are not limited to the above, and the effective number of teeth and effective tooth length of the thread 15 can be adjusted according to the actual use environment.

The operation unit 20 is connected to the top surface 12 of the connection unit 10. In an embodiment, the operation portion 20 is a hexagonal nut and includes one or more flow channel outlets. For example, as shown in FIG. 2, the operation section 20 is formed with two flow channel outlets 25, 26. The two flow path outlets 25 and 26 respectively extend in a direction perpendicular to the above-mentioned long axis L, and form outer ports on the side 23 of the operation portion 20.

In an embodiment, the extending directions of the two flow channel outlets 25 and 26 are opposite to each other, and the angle between the two is equal to 180 degrees, but the disclosure is not limited to this. In other embodiments, in the circumferential direction of the operation portion 20, the angle between the extension directions of the two adjacent flow channel outlets 25, 26 is less than 180 degrees. In addition, the extending direction of the runner outlet may also be changed. For example, the extending direction of the runner outlet may be parallel to the long axis L, or an angle smaller than 90 may be interposed with the long axis L.

Figure 3 shows a cross-sectional view taken along the line A-A of Figure 2. In one embodiment, the flow path 30 extends along the long axis L within the drain plug 1. The flow channel 30 includes an upstream section 31, a midstream section 32, and a downstream section 33 in sequence on the long axis L. The upstream segment 31 is connected to the flow channel inlet 110, the midstream segment 32 is connected between the upstream segment 31 and the downstream segment 33, and the downstream segment 33 is connected to the flow channel outlets 25 and 26.

Specifically, the upstream section 31 is provided adjacent to the bottom surface 11 of the connecting portion 10 and communicates with the flow channel inlet 110. The midstream section 32 communicates with the end of the upstream section 31 away from the bottom surface 11 and spans the plane of the top surface 12 of the connecting portion 10. The downstream section 33 communicates with an end of the midstream section 32 away from the upstream section 31 and extends a distance D. The inner ports of the flow channel outlets 25 and 26 are formed on the side wall 331 of the downstream section 33. In an embodiment, the distance D extended by the downstream section 33 is the same as the width of the flow channel outlets 25, 26 to completely expose the inner ports of the flow channel outlets 25, 26.

In an embodiment, as shown in FIG. 3, the width of the flow channel 30 has There is a step change. Specifically, the upstream section 31, the middle section 32 and the downstream section 33 of the flow channel 30 each have a specific width, wherein the width W1 of the upstream section 31 is greater than the width W2 of the middle section 32, and the middle section The width W2 of 32 is larger than the width W3 of the downstream section 33. In one embodiment, in the direction perpendicular to the long axis L, the ratio of the width W3 of the downstream segment 33 to the width W2 of the midstream segment 32 is between 0.6 and 0.8.

In one embodiment, the side wall 311 of the upstream section 31 is connected to the side wall 321 of the middle section 32 by a stepped surface 312, and the side wall 321 of the middle section 32 is connected to the side wall of the downstream section 33 by a stepped surface 322 331 links. The planes of the stepped surface 312 and the stepped surface 322 are perpendicular to the long axis L, but the disclosure is not limited to this. In other embodiments, the stepped surface 312 and the stepped surface 322 may be inclined surfaces, and their planes each include an angle of less than 90 degrees with the long axis L.

Since the plane of the stepped surface 312 and the stepped surface 322 is not parallel to the long axis L, the stepped surface 312 and the side wall 311 of the upstream segment 31 and the side wall 321 of the midstream segment 32 respectively form a discontinuous surface, and the stepped surface 322 and the midstream segment The side wall 321 of the 32 and the side wall 331 of the downstream stage 33 each constitute a discontinuous surface. The "discontinuous plane" referred to here refers to a discontinuously extending plane, that is, an angle is formed between two adjacent planes. In this embodiment, the angle between the side wall and the stepped surface is 90 degrees.

The filter element 40 is configured to filter impurities in the sewage passing through the flow channel 30. In an embodiment, the filter element 40 is completely filled in the middle section 32, without filling the upstream section 31 and the downstream section 33. Moreover, the upper and lower edges of the filter element 40 are flat, the lower edge 41 of the filter element 40 is flush with the boundary between the stepped surface 312 and the side wall 321 of the midstream section 32, and the upper edge 42 of the filter element 40 is flush At the junction of the stepped surface 322 and the side wall 331 of the downstream section 33, the disclosure is not limited to this. In another embodiment, the filter element 40 is completely filled in the middle section 32 and the downstream section 33. The filter element 40 may include a plurality of filter particles made of bronze (Bronze) material. The size of the filter particles of the filter element 40 may be between 350μ and 500μ.

In an embodiment, the filter element 40 is inserted into the flow channel 30 in the form of a cylinder fixed in advance, and then fixed in the flow channel 30 by means of rivet pressing, wherein the stepped surface 312 is a riveting process The step surface 312 is formed during the manufacturing process of the runner 30. The arrangement of the stepped surface 312 can support the filter element 40 during the riveting process, so that the density of the filter element 40 is increased. Moreover, due to the arrangement of the stepped surface 312, the sewage flowing through the filter element 40 may flow in a direction other than the parallel long axis L (for example, in the direction perpendicular to the long axis L), thereby extending the filtering path and enhancing the filtering effect , To avoid impurities entering the flow channel outlet 25,26.

In summary, the discharge plug of the present disclosure has the effect of filtering sewage compared with the conventional discharge plug, so that the outlet of the flow channel can be prevented from being blocked due to the entry of impurities. As a result, the reliability of the discharge plug is increased, and the service life is thus extended.

Although this disclosure has been disclosed above with preferred embodiments, it is not intended to limit this disclosure. The technical field to which this disclosure belongs has general knowledge Therefore, within the spirit and scope of this disclosure, some changes and modifications can be made, so the scope of protection of this disclosure shall be deemed to be defined by the scope of the attached patent application.

1‧‧‧Drain plug

10‧‧‧Link

11‧‧‧Bottom

12‧‧‧Top

15‧‧‧Thread

20‧‧‧Operation Department

23‧‧‧Side

25‧‧‧ Outlet

L‧‧‧Long axis

Claims (9)

A discharge plug, including: a connecting portion having a first-level inlet formed on a bottom surface of the connecting portion; an operating portion connecting a top surface of the connecting portion and having at least a first-level outlet, wherein the first-level channel is defined in the discharge In the plug, and the flow channel includes, in order in the direction of the long axis, an upstream segment connected to the inlet of the flow channel, a midstream segment, and a downstream segment connected to the outlet of the flow channel. The side wall is connected to the side wall of the downstream section by a stepped surface, which forms a discontinuous surface with the side wall of the middle section and the side wall of the downstream section; and a filter element is provided in the middle section. The discharge plug according to item 1 of the patent application scope, wherein the midstream section completely fills the filter element, and the upper edge of the filter element adjacent to the downstream section is flush with the stepped surface. The discharge plug as described in item 2 of the patent application scope, wherein the plane where the stepped surface is located is perpendicular to the long axis direction. The discharge plug according to item 1 of the patent application scope, wherein the downstream section has a uniform width in a direction perpendicular to the long axis. The discharge plug according to item 4 of the patent application scope, wherein in the direction perpendicular to the long axis, the ratio of the width of the downstream section to the width of the middle section is between 0.6 and 0.8. The discharge plug according to any one of claims 1 to 5, wherein the outlet of the flow channel extends perpendicular to the direction of the long axis, and the extension distance of the downstream section in the direction of the long axis is the same as that of the flow channel The width of the exit. The discharge plug according to any one of items 1 to 5 of the patent application range, wherein the width of the upstream section is larger than the width of the middle section. The discharge plug according to any one of items 1 to 5 of the patent application scope, wherein the filter element includes a plurality of filter particles made of bronze material. The discharge plug according to any one of items 1 to 5 of the patent application range, wherein an outer side wall of the connecting portion includes a thread, the effective number of teeth of the thread is greater than or equal to 8, and the effective tooth length of the thread is greater than or equal to 15 mm.

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