CN220346641U

CN220346641U - Drainage device and pipe body cleaning device

Info

Publication number: CN220346641U
Application number: CN202321164489.7U
Authority: CN
Inventors: 马有
Original assignee: Jiaozuo Hedou Technology Co ltd
Current assignee: Jiaozuo Hedou Technology Co ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2024-01-16
Anticipated expiration: 2033-05-15

Abstract

The utility model relates to the technical field of injection devices, and discloses a drainage device and a tube cleaning device. The drainage device comprises a first cover body, a second cover body and a connecting body, wherein at least one of the first cover body and the second cover body is provided with an inflow hole for inputting fluid, the first cover body is connected with the second cover body through the connecting body, a gap is reserved between the first cover body and the second cover body to form a flow channel, the flow channel is communicated with the inflow hole, the flow channel extends to the edge of the first cover body, the periphery wall of the second cover body is provided with a drainage surface, and fluid input from the inflow hole can be sprayed out of the drainage device from the flow channel and flow along the drainage surface. The drainage device can be used for drying or cleaning the inner wall of a tubular product, can quickly remove water stains and sundries on the inner wall of the tubular product, has a very good drying or cleaning effect, and is not contacted with the inner wall of the product in the process of drying or cleaning, so that the inner wall of the product is not damaged.

Description

Drainage device and pipe body cleaning device

Technical Field

The utility model relates to the technical field of injection devices, in particular to a drainage device and a tube cleaning device.

Background

There are numerous tubular products in life, both in the production phase and in the use phase of such products, the cleaning of dirt adhering to the inner walls of such products is a technical problem. At present, when dirt exists on the inner wall of the product, people usually use tools such as a brush, a scraping plate and the like to clean, but the cleaning modes are difficult to clean the particle dirt attached on the inner wall of the product, the cleaning effect of the cleaning modes is not ideal, and the cleaning process is complex and has low efficiency. In addition, in the cleaning process, tools such as a brush, a scraping plate and the like can be in direct contact with the inner wall of the product, so that the inner wall of the product is easily damaged.

For example, one process in the production of cylinder liners is boring an inner bore, which is the processing of the inner bore of the cylinder liner by placing a blank on a boring machine. According to whether chip liquid is used in the process of boring the inner hole, the boring inner hole can be divided into a wet boring inner hole and a dry boring inner hole, and more scrap iron can be attached to the inner wall of a blank after being processed on a boring machine no matter whether the boring inner hole is a wet boring inner hole or a dry boring inner hole. Particularly when a wet boring method is used, not only a large amount of scrap iron but also a liquid film composed of a cutting liquid is adhered to the inner wall of the obtained blank. After the boring process, a high-precision detecting instrument (for example, a laser ranging sensor) is required to detect whether the inner diameter of the product is qualified or not, but scrap iron or liquid films attached to the inner wall of the blank can reduce the detection precision. At present, it is a great technical problem for those skilled in the relevant art how to quickly and efficiently remove the scrap iron or liquid film attached to the inner wall of the blank.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, provides a drainage device and aims to solve one of the technical problems in the prior art at least to a certain extent.

Another aspect of the utility model provides a tube cleaning device.

The utility model aims at realizing the following technical scheme:

in one aspect, the utility model provides a drainage device, which comprises a first cover body, a second cover body and a connecting body, wherein at least one of the first cover body and the second cover body is provided with an inflow hole for inputting fluid, the first cover body is connected with the second cover body through the connecting body, a gap is reserved between the first cover body and the second cover body to form a runner, the runner is communicated with the inflow hole, the runner extends to the edge of the first cover body, the peripheral wall of the second cover body is provided with a drainage surface, and the fluid input from the inflow hole can be sprayed out of the drainage device from the runner and flows along the drainage surface.

In some embodiments, the second cover has a first end adjacent to the first cover, the projected contour of the first cover on the first end coinciding with or being within the contour of the first end;

preferably, the projected contour of the first cover on the first end is located within the contour of the first end.

In some embodiments, the second cover further has a second end remote from the first cover, and the contour line of the projection of the first end on the second end is located inside the second end, and the edge of the first end is used as a starting position of the drainage surface and the edge of the second end is used as a termination position of the drainage surface.

In some embodiments, a slope angle of the drainage surface at an end away from the first cover is greater than 0 degrees and less than 67 degrees;

preferably, a slope angle of one end of the drainage surface far away from the first cover body is more than or equal to 30 degrees and less than or equal to 60 degrees;

more preferably, the slope angle of the drainage surface at the end far away from the first cover body is 60 degrees.

In some embodiments, the flow channel includes at least an outlet section, the outlet section being adjacent an edge of the first cover; the outlet section has a first chamber wall formed by a portion of the surface of the first cover and a second chamber wall formed by a portion of the surface of the second cover, the first chamber wall being parallel to the second chamber wall to define the outlet section;

preferably, the distance D between the first cavity wall and the second cavity wall is in the range of 0.03mm to 0.2mm, and the length L of the outlet section is more than or equal to 17 x D;

more preferably, the distance D between the first cavity wall and the second cavity wall has a value in the range of 0.06mm to 0.15mm.

In some embodiments, a flow dividing chamber is arranged between the second cover body and the first cover body, and the flow inlet hole and the flow channel are communicated with the flow dividing chamber;

Preferably, an end of the first cover body adjacent to the second cover body has the same shape as an end of the diverting chamber adjacent to the first cover body;

more preferably, a sink is provided at an end of the second cover body adjacent to the first cover body to form the flow separation chamber.

In some embodiments, the connecting body is arranged in the shunt chamber, one end of the connecting body is fixedly connected with the second cover body, the first cover body is provided with a mounting hole, a fastener is arranged in the mounting hole, one end of the fastener is connected with the connecting body, and the other end of the fastener presses the first cover body and enables the first cover body to be connected with the connecting body in a seamless mode;

preferably, the connector comprises a first connecting part and a second connecting part, the first connecting part is fixedly connected with the second cover body, the second connecting part is arranged between the first connecting part and the first cover body, and one end of the fastener penetrates through the second connecting part and is connected with the first connecting part;

more preferably, one end of the first connecting part is flush with one end of the second cover body adjacent to the first cover body, and after the first cover body is connected with the second cover body through a fastener, the second connecting part enables a gap to be formed between the first cover body and the second cover body so as to form a flow channel;

more preferably, the second connection portion is made of any one of plastic, copper, aluminum, copper alloy, and aluminum alloy.

In some embodiments, the number of connectors is a plurality, and the plurality of connectors are distributed at intervals in the flow channel;

preferably, the cross section of the connecting body is fusiform;

more preferably, an extension of the long axis of the shuttle passes through the center of the end of the second cover adjacent to the first cover.

The drainage device provided by the utility model has the following beneficial effects:

when the fluid input into the flow hole is compressed air, the flow rate of the air input into the flow hole is set to be Q, the air is ejected from the outlet of the flow channel at a high speed and then flows against the drainage surface, a layer of air flow is formed on the surface of the drainage surface, the air ejected from the flow channel at a high speed enables a negative pressure area to be formed above the drainage surface, and the air around the negative pressure area is attracted and mixed with the air flow under the action of atmospheric pressure, so that the flow rate of the air ejected from the tail end of the drainage surface at a high speed is far greater than the flow rate Q at the flow hole, and the flow amplification effect is generated; moreover, after the air is sprayed out along the tail end of the drainage surface, the laminar form of the air flow is kept for a certain distance, and the characteristics enable the drainage device to be used for drying or cleaning and have higher drying or cleaning efficiency;

When the fluid input into the flow holes is air, the flow diverter can be used for drying or cleaning the inner wall of the tubular product, can quickly remove water stains and sundries on the inner wall of the tubular product, and has a very good drying or cleaning effect; and the inner wall of the product is not damaged because the inner wall is not contacted with the inner wall of the product in the process of drying or cleaning, and the product is very suitable for drying or cleaning the product with high inner wall precision requirement or easy damage.

On the other hand, the utility model also provides a pipe body cleaning device which comprises a fluid supply unit and the drainage device, wherein the fluid supply unit is connected with the inflow hole through a pipeline, and fluid is conveyed into the diversion chamber by the fluid supply unit.

In some embodiments, the tube cleaning device further comprises a driving mechanism, the driving mechanism is connected with the first cover body and/or the second cover body, the driving mechanism drives the drainage device to do linear motion, and the motion direction of the drainage device is parallel to the thickness direction of the first cover body.

The pipe body cleaning device provided by the utility model has the following beneficial effects:

because the pipe body cleaning device uses the drainage device, when the fluid input to the inflow hole by the fluid supply unit is air, the pipe body cleaning device can also quickly remove water stains and sundries on the inner wall of the tubular product, and has a very good drying or cleaning effect; and the inner wall of the product is not damaged because the inner wall is not contacted with the inner wall of the product in the process of drying or cleaning, and the product is very suitable for drying or cleaning the product with high inner wall precision requirement or easy damage. In addition, the flow diverter provided by the utility model has the effect of flow amplification on compressed gas, so that the pipe cleaning device is beneficial to reducing the consumption of the compressed gas, thereby achieving the purpose of energy conservation.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the principles of the present utility model.

Fig. 2 is a partially enlarged view of fig. 1.

Fig. 3 is a perspective view of embodiment 1 of the present utility model.

Fig. 4 is a front view of embodiment 1 of the present utility model.

Fig. 5 is a top view of embodiment 1 of the present utility model.

Fig. 6 is a cross-sectional view taken along line A-A in fig. 4.

Fig. 7 is a partially enlarged view of i in fig. 6.

Fig. 8 is a perspective view of the first cover in embodiment 1 of the present utility model.

Fig. 9 is a perspective view of a second cover in embodiment 1 of the present utility model.

Fig. 10 is a sectional view of the second cover in embodiment 1 of the present utility model.

Fig. 11 is a perspective view of embodiment 2 of the present utility model.

Fig. 12 is a front view of embodiment 2 of the present utility model.

Fig. 13 is a sectional view taken along line B-B in fig. 11.

Fig. 14 is a cross-sectional view of the second cover and the connector according to embodiment 2 of the present utility model.

Fig. 15 is a schematic structural view of a second connecting portion in embodiment 2 of the present utility model.

Fig. 16 is a perspective view of embodiment 3 of the present utility model.

Fig. 17 is an exploded view of embodiment 3 of the present utility model.

Fig. 18 is a front view of embodiment 3 of the present utility model.

Fig. 19 is a cross-sectional view taken along line C-C in fig. 18.

Fig. 20 is an enlarged partial view at ii in fig. 19.

Fig. 21 is a cross-sectional view of the second cover body in embodiment 3 of the present utility model after being connected to the connector body.

Fig. 22 is a perspective view of embodiment 4 of the present utility model.

Fig. 23 is an exploded view of embodiment 4 of the present utility model.

Fig. 24 is an enlarged partial view at iii in fig. 23.

Fig. 25 is a front view of embodiment 4 of the present utility model.

Fig. 26 is a cross-sectional view taken along line E-E in fig. 25.

Fig. 27 is a cross-sectional view of embodiment 5 of the present utility model.

Fig. 28 is a perspective view of embodiment 6 of the present utility model.

Fig. 29 is a top view of embodiment 6 of the present utility model.

Fig. 30 is a cross-sectional view taken along line F-F in fig. 29.

Fig. 31 is an enlarged view of a portion at iv in fig. 30.

Fig. 32 shows the flow channel of fig. 31 in isolation in cross section.

Fig. 33 is an exploded view of embodiment 6 of the present utility model.

Fig. 34 is a perspective view of embodiment 9 of the present utility model.

Fig. 35 is an exploded view of embodiment 9 of the present utility model.

Fig. 36 is a front view of embodiment 9 of the present utility model.

Fig. 37 is a sectional view taken along line G-G in fig. 36.

Fig. 38 is a partially enlarged view of fig. 37.

Fig. 39 is a top view of embodiment 9 of the present utility model.

Fig. 40 is a perspective view of embodiment 11 of the present utility model.

Fig. 41 is an exploded view of embodiment 11 of the present utility model.

Fig. 42 is a front view of embodiment 11 of the present utility model.

Fig. 43 is a cross-sectional view taken along line F-F in fig. 42.

Fig. 44 is a top view of embodiment 11 of the present utility model.

Fig. 45 is a structural view of the first cover in embodiment 11 of the present utility model, mainly showing the pyramid surface of the first cover.

Fig. 46 is a schematic view of a pipe cleaning device according to the present utility model.

Fig. 47 is a schematic view of the tube cleaning device of fig. 46 when cleaning a tube.

Fig. 48 is an enlarged view of a portion of vi in fig. 47.

Fig. 49 is a schematic view of another tube cleaning device according to the present utility model.

Fig. 50 is a schematic view of still another tube cleaning apparatus provided by the present utility model.

The reference numerals are explained as follows:

in the figure: 1. a first cover; 101. a first cavity wall; 102. a first spherical surface; 103. a conical surface; 2. a second cover; 201. a drainage surface; 202. a first end; 203. a second end; 204. a second chamber wall; 205. a second spherical surface; 206. a top surface of the second cover; 3. a connecting body; 301. a first connection portion; 302. a second connecting portion; 303. an upper section; 304. a lower section; 4. an inflow hole; 5. a flow passage; 501. an outlet section; 502. an inlet section; 6. a flow dividing chamber; 7. a fastener; 8. a mounting hole; 9. a hard tube; 10. a hose; 11. a negative pressure region; 12. a quick connector; 100. a drainage device; 200. a pipeline; 300. a fluid supply unit; 400. a driving mechanism; 500. a tube body; 600. a rod body.

Detailed Description

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The article "a" or "an" as used herein may also include plural referents unless the context clearly dictates otherwise. Further, as used in the specification, the terms "comprises" and/or "comprising," and/or "including," are intended to specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. And terms such as "above," "below," "upper" and "lower" are used to indicate relative positional relationships between elements or structures, rather than absolute positions.

Unless defined or otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. In addition, any method and materials similar or equivalent to those described can be used in the method of the present utility model.

Other advantages and effects of the present disclosure will become readily apparent to those skilled in the art from the following disclosure, which describes embodiments of the present disclosure by way of specific examples. It will be apparent that the described embodiments are merely some, but not all embodiments of the present disclosure. The disclosure may be embodied or practiced in other different specific embodiments, and details within the subject specification may be modified or changed from various points of view and applications without departing from the spirit of the disclosure. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure.

It is noted that various aspects of the embodiments are described below within the scope of the following claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present disclosure, one skilled in the art will appreciate that one aspect described herein may be implemented independently of any other aspect, and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. In addition, such apparatus may be implemented and/or such methods practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.

It should also be noted that the illustrations provided in the following embodiments merely illustrate the basic concepts of the disclosure by way of illustration, and only the components related to the disclosure are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.

In addition, in the following description, specific details are provided in order to provide a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.

Referring to fig. 1-3, the present utility model provides a drainage device 100, where the drainage device 100 includes a first cover 1, a second cover 2, and a connector 3, at least one of the first cover 1 and the second cover 2 is provided with an inflow hole 4 for inputting fluid into the drainage device 100, the first cover 1 is connected with the second cover 2 through the connector 3, a gap exists between the first cover 1 and the second cover 2 to form a flow channel 5, the flow channel 5 is communicated with the inflow hole 4, the flow channel 5 extends to the edge of the first cover 1, a drainage surface 201 is provided on the peripheral wall of the second cover 2, and the fluid input from the inflow hole 4 can be sprayed from the flow channel 5 to the outside of the drainage device 100 and flows along the drainage surface 201.

Fig. 1 is a schematic cross-sectional view of the present utility model, fig. 2 is an enlarged view of a portion of fig. 1, fig. 1 and 2 are intended to illustrate the principle of the present utility model, and the flow direction of the fluid is indicated by non-solid arrows in fig. 1 and 2. As shown in fig. 2, a distance between the first cover 1 and the second cover 2 in this figure is denoted by D. In designing the present flow diverter 100, the height D of the outlet section 501 of the flow channel 5 may be determined according to the viscosity of the fluid input into the flow hole 4, and in general, the height D of the outlet section 501 of the flow channel 5 increases with the viscosity of the fluid. The fluid first enters the flow diverter 100 from the inflow hole 4, then flows through the flow channel 5 and is ejected from the outlet section 501 of the flow channel 5, and according to the coanda effect, when the fluid is ejected from the outlet section 501 of the flow channel 5 at a certain initial velocity, and a proper included angle is formed between the initial velocity direction of the fluid and the flow diverter surface 201, the fluid will flow against the flow diverter surface 201.

The fluid input into the flow holes 4 in the present utility model may be gas or liquid, such as air, water, cleaning fluid, lubricating fluid, etc. In practical application, the drainage device 100 can be used for drying, cleaning, spraying and other application scenes.

When the fluid input into the flow hole 4 is compressed air, the flow rate of the air input into the flow hole 4 is set to be Q, the air is ejected from the outlet of the flow channel 5 at a high speed, and then flows against the flow guiding surface 201, a layer of air flow is formed on the surface of the flow guiding surface 201, the air ejected from the flow channel 5 at a high speed forms a negative pressure area 11 above the flow guiding surface 201, and under the action of the atmospheric pressure, the air around the negative pressure area 11 is attracted and mixed with the air flow, so that the flow rate of the air ejected from the tail end of the flow guiding surface 201 at a high speed is far greater than the flow rate Q at the flow hole 4, and the flow rate amplifying effect is generated. Moreover, after the air is ejected along the end of the drainage surface 201, the laminar configuration of the air flow will continue for a distance, which allows the flow diverter 100 to be used for drying or cleaning and has a high drying or cleaning efficiency.

As shown in fig. 47, when the fluid input into the flow hole 4 is air, the flow diverter 100 can be used for drying or cleaning the inner wall of the tubular product, can quickly remove water stains and impurities on the inner wall of the tubular product, and has a very good drying or cleaning effect. In addition, the utility model is not contacted with the inner wall of the product in the process of drying or cleaning, so that the inner wall of the product is not damaged, and the utility model is very suitable for drying or cleaning the product with high inner wall precision requirement or easy damage. The drying referred to in this utility model is also understood to mean the removal of liquid from the inner wall of the tubular product.

When the fluid introduced into the flow hole 4 is a liquid, the flow diverter 100 can be used for cleaning the inner wall of a tubular product (such as a pipe, a cylinder, etc.).

Example 1

Referring to fig. 1 to 10, the present embodiment provides a flow diverter 100, and the flow diverter 100 includes a first cover 1, a second cover 2, and a connector 3. The first cover body is disc-shaped, the upper end face and the lower end face of the second cover body 2 are circular, and the first cover body and the second cover body 2 are made of metal or metal alloy materials (such as aluminum alloy materials) or high-hardness plastic materials. The center of the first cover body 1 is provided with an inflow hole 4 for inputting fluid into the drainage device 100, the inflow hole 4 penetrates through the upper end face and the lower end face of the first cover body 1, and internal threads can be machined on the inner wall of the inflow hole 4 so as to be connected with a quick connector or a gas pipe (the gas pipe is provided with external threads matched with the internal threads). The first cover body 1 is located above the second cover body 2 and is connected with the second cover body 2 through the connecting body 3, the center of the first cover body 1 is aligned with the center of the upper end face of the second cover body 2 up and down, a gap exists between the first cover body 1 and the second cover body 2 to form a flow channel 5, the flow channel 5 is communicated with the inflow hole 4, the flow channel 5 extends to the edge of the first cover body 1, a drainage surface 201 is arranged on the peripheral wall of the second cover body 2, and fluid input from the inflow hole 4 can be sprayed out of the drainage device 100 from the flow channel 5 and flow along the drainage surface 201.

In the present embodiment, the second cover 2 has a first end 202 adjacent to the first cover 1, and the contour line of the projection of the first cover 1 on the first end 202 is located within the contour line of the first end 202. As shown in fig. 10, the upper end of the second cover 2 is the first end 202 of the second cover 2, and the diameter of the first cover 1 is about 2-9 mm smaller than that of the first end 202, so that the diameter of the first cover 1 is smaller than that of the first end 202 to ensure that the fluid ejected from the flow channel 5 can flow against the drainage surface 201, and a sufficiently large negative pressure area 11 is formed around the first cover 1, so that more air can be sucked into the fluid flow, thereby obtaining better drying or cleaning effect. Also, the thickness of the edge of the first cover 1 should not be too great in order to allow more air to be sucked into the fluid flow. For example, when the first cover 1 is made of aluminum alloy, the thickness of the edge of the first cover 1 may be 2mm, and a chamfer may be provided at the edge of the upper end face of the first cover 1. The smaller the thickness of the first cover 1 is, the easier it is to achieve the object of the present utility model under the condition that the first cover 1 satisfies its own structural strength.

The second cover 2 further has a second end 203 remote from the first cover 1, an edge of the first end 202 is used as a starting position of the drainage surface 201, an edge of the second end 203 is used as a termination position of the drainage surface 201, and a contour line of a projection of the first end 202 on the second end 203 is located inside the second end 203. As shown in fig. 9, the second cover 2 finally presents a shape similar to a truncated cone, which aims to form the second cover 2 into a shape gradually thickened from top to bottom so as to ensure that the fluid ejected from the flow channel 5 can flow against the drainage surface 201, and simultaneously form an included angle between the air flow ejected from the drainage surface 201 and the inner wall surface of the tubular product. The drainage surface 201 may be a conical surface as shown in fig. 9, or may be a curved surface or a spherical surface as shown in fig. 36.

Referring to fig. 2, according to the principle of fluid mechanics, after fluid is ejected from the flow channel 5 at a certain speed, the fluid flows against the drainage surface 201, and the drainage surface 201 is provided to change the movement direction of the fluid. However, when the slope angle of the drainage surface 201 is too large, the fluid cannot flow against the drainage surface 201 any more. In the present flow diverter 100, a number of experiments were performed, and the test results indicate that when the slope angle of the end of the flow diverter surface 201 away from the first cover 1 is in the range of 0 to 67 degrees (inclusive), the fluid can flow against the flow diverter surface 201.

The following table shows experimental results corresponding to different slope angles θ when the current flow diverter 100 only has the slope angle θ, and the fluid used in the current experiment is air.

In the present embodiment, the degree of the slope angle θ is 45 degrees.

Fig. 7 is an enlarged view of a part of fig. 6, the flow channel 5 being constituted by only an outlet section 501, the outlet section 501 being adjacent to the edge of the first cover 1, the outlet section 501 being in this embodiment identical to the flow channel 5. The outlet section 501 has a first chamber wall 101 constituted by part of the surface of the first cover 1 and a second chamber wall 204 constituted by part of the surface of the second cover 2, the first chamber wall 101 being parallel to the second chamber wall 204 so as to define the outlet section 501. The distance D between the first cavity wall 101 and the second cavity wall 204 ranges from 0.03mm to 0.2mm (inclusive), and the length L of the outlet section 501 is equal to or greater than 17×d.

The value of D can be determined according to the viscosity of the fluid, and generally speaking, the greater the viscosity of the fluid is, the greater the value of D is. When the fluid input into the flow diverter 100 is air, the distance D between the first cavity wall 101 and the second cavity wall 204 is suitably in the range of 0.06mm to 0.15mm (inclusive), and in this range, it can be ensured that the flow diverter 100 consumes less compressed air on the premise of obtaining a better drying or cleaning effect, thereby achieving the purpose of saving energy. The purpose of the length L of the outlet section 501 is to form a thin fluid flow from the end of the flow channel 5, so that the fluid can be more intensively sprayed on the inner wall of the pipe body, and a better drying or cleaning effect is further ensured.

In this embodiment, a cylindrical diversion chamber 6 is disposed between the second cover 2 and the first cover 1, the diversion chamber 6 is disposed at the center of the first end 202, the flow channel 5 surrounds the diversion chamber 6 for one circle, and the inflow hole 4 and the flow channel 5 are both communicated with the diversion chamber 6; after the fluid enters the flow diverter 100 from the inflow hole 4, the flow diversion chamber 6 is filled, the pressure of the fluid in the flow diversion chamber 6 is close to the pressure of the fluid at the inflow hole 4, and the flow diversion chamber 6 is arranged to be favorable for uniformly spraying the fluid from the flow channel 5.

Wherein the end of the first cover 1 adjacent to the second cover 2 has the same shape as the end of the diverting chamber 6 adjacent to the first cover 1. As shown in this embodiment, the end of the first cover 1 adjacent to the second cover 2 (i.e., the lower end of the first cover 1 in fig. 4) is circular, the end of the flow dividing chamber 6 adjacent to the first cover 1 (i.e., the upper end of the flow dividing chamber 6 in fig. 9) is also circular, and the center of the lower end of the first cover 1 is aligned with the center of the upper end of the flow dividing chamber 6, thereby ensuring that the flow channel 5 is circular and surrounding the flow dividing chamber 6 for a circle.

In practice, a sink may be provided at an end of the second cover 2 adjacent to the first cover 1 to form the diversion chamber 6. As shown in fig. 9, a cylindrical sinking groove is machined in the center of the upper end face of the second cover body 2, and the whole flow dividing chamber 6 is arranged on the second cover body 2, so that the thickness of the first cover body 1 is reduced, and further, air above the second cover body 2 is sucked into the fluid flow, and the drainage device 100 is guaranteed to be capable of efficiently removing dirt on the inner wall of a product.

In this embodiment, the connector 3 is disposed in the diversion chamber 6, the lower end of the connector 3 is fixedly connected with the second cover 2, three mounting holes 8 are disposed on the first cover 1, a fastener 7 is disposed in each mounting hole 8, one end of the fastener 7 is connected with the connector 3, the other end of the fastener 7 presses the first cover 1 and enables the first cover 1 to be in seamless connection with the connector 3, and leakage of fluid from the mounting holes 8 is prevented. The fastening piece 7 can be a bolt, a threaded hole matched with the bolt is formed at the upper end of the connecting body 3, and the fastening piece 7 is in threaded connection with the connecting body 3. As shown in FIG. 10, the depth of the sink is H ₁ The overall height of the connector 3 is H _2, In order to form a flow path 5,H between the first cover 1 and the second cover 2 ₂ The number of (2) is greater than H ₁ Numerical value of H ₂ And H is ₁ Is approximately equal to the value of D.

Example 2

As shown in fig. 11 to 15, the present embodiment differs from embodiment 1 in that: the slope angle θ of the end of the drainage surface 201 away from the first cover 1 is 60 degrees; the connector 3 in this embodiment includes a first connecting portion 301 and a second connecting portion 302, the lower end of the first connecting portion 301 is fixedly connected with the second cover 2, the second connecting portion 302 is disposed between the first connecting portion 301 and the first cover 1, and the lower end of the fastener 7 passes through the second connecting portion 302 and is in threaded connection with the first connecting portion 301.

In a specific implementation, the first connecting portion 301 is provided with a threaded hole matched with the fastener 7, and the second connecting portion 302 is provided with a round hole for the fastener 7 to pass through. The second connecting portion 302 may be made of a polymer material such as plastic, or may be made of copper (alloy) or aluminum (alloy), and under the action of the fastener 7, the second connecting portion 302 is clamped between the first connecting portion 301 and the first cover body, and the second connecting portion 302 may play a role in sealing, so as to prevent gas from leaking from the mounting hole 8. In addition to the above-listed materials, the second connecting portion 302 may be made of other materials having a smaller hardness.

In order to facilitate the processing of the second cover 2, one end of the first connecting portion 301 is flush with one end of the second cover 2 adjacent to the first cover 1, and after the first cover 1 and the second cover 2 are connected by the fastener 7, the second connecting portion 302 has a gap between the first cover 1 and the second cover 2 to form the flow channel 5. As shown in fig. 14, the upper end of the first connection portion 301 is flush with the upper end of the second cover 2, and the thickness of the second connection portion 302 is equal to the distance D between the first chamber wall 101 and the second chamber wall 204. In a specific implementation, the second connection portion 302 may be cut from a sheet material with a thickness D, where the sheet material may be one of a plastic sheet, a copper foil, an aluminum foil, a copper alloy sheet, and an aluminum alloy sheet. The second connecting portion 302 is utilized to form the flow channel 5, so that the lower end face of the first cover body 1 and the upper end face of the second cover body 2 can be ensured to be parallel, and fluid leakage from the mounting hole 8 can be effectively prevented, thereby reducing the machining precision requirements of the lower end face of the first cover body 1 and the upper end face of the first connecting portion 301, reducing the machining difficulty of products and being beneficial to reducing the machining cost.

In this embodiment, the distance D between the first cavity wall 101 and the second cavity wall 204 can be easily changed by replacing the second connecting portion 302 with a different thickness, so that the drainage device 100 is suitable for different use situations.

The whole structure of this embodiment is reasonable in design, ingenious, can realize quick assembly and disassemble. For manufacturers of the drainage device 100, the processing technology and the assembling technology of the drainage device 100 are simple, which is beneficial to improving the production efficiency of the manufacturers and reducing the production cost; for the user of the drainage device 100, the drainage device 100 has better drying or cleaning effect, and is convenient to maintain in the use process, thereby being beneficial to reducing the maintenance cost.

Example 3

Referring to fig. 16 to 21, the present embodiment provides another flow diverter 100, and the flow diverter 100 includes a first cover 1, a second cover 2, and a connector 3.

As shown in fig. 17, the first cover 1 is disc-shaped, and has a mounting hole 8 at the center thereof for the fastener 7 to pass through, and two inflow holes 4 are further provided on the first cover 1, wherein the inflow holes 4 penetrate through the upper and lower end surfaces of the first cover 1, and the bottom surface of the first cover 1 is a plane. The first cover body 1 is located above the second cover body 2 and is connected with the second cover body 2 through the connecting body 3, the center of the first cover body 1 is aligned with the center of the upper end face of the second cover body 2 up and down, a gap exists between the first cover body 1 and the second cover body 2 to form a flow channel 5, the flow channel 5 is communicated with the inflow hole 4, the flow channel 5 extends to the edge of the first cover body 1, a drainage surface 201 is arranged on the peripheral wall of the second cover body 2, and fluid input from the inflow hole 4 can be sprayed out of the drainage device 100 from the flow channel 5 and flow along the drainage surface 201.

In the present embodiment, the second cover 2 has the first end 202 adjacent to the first cover 1, and the contour line of the projection of the first cover 1 on the first end 202 is located within the contour line of the first end 202, thereby ensuring that the fluid ejected from the flow channel 5 can flow against the drainage surface 201, and forming a sufficiently large negative pressure region 11 around the first cover 1, so that more air can be sucked into the fluid flow, thereby achieving better drying or cleaning effect. Also, the thickness of the edge of the first cover 1 should not be too great in order to allow more air to be sucked into the fluid flow.

As shown in fig. 17, the second cover 2 is substantially in a shape of a truncated cone, the upper end of the second cover 2 is a first end 202 of the second cover 2, the lower end of the second cover 2 is a second end 203 of the second cover 2, and the diameter of the first end 202 is smaller than that of the second end 203 so that the contour line of the projection of the first end 202 on the second end 203 is located inside the second end 203; the side surface of the second cover body 2 is taken as a drainage surface 201, the edge of the first end 202 is taken as the starting position of the drainage surface 201, and the edge of the second end 203 is taken as the ending position of the drainage surface 201; the center of the first end 202 is provided with a cylindrical sinking groove to form the split-flow chamber 6, one end of the first cover body 1 adjacent to the second cover body 2 (i.e. the lower end of the first cover body 1) and one end of the split-flow chamber 6 adjacent to the first cover body 1 (i.e. the upper end of the split-flow chamber 6) are both circular, and the diameter of the split-flow chamber 6 is smaller than the outer diameter of the first cover body 1.

Fig. 20 is an enlarged view of a portion at ii in fig. 19, the flow channel 5 being constituted by only the outlet section 501, the outlet section 501 being adjacent to the edge of the first cover 1, the outlet section 501 being equivalent to the flow channel 5 in this embodiment. The outlet section 501 has a first chamber wall 101 constituted by part of the surface of the first cover 1 and a second chamber wall 204 constituted by part of the surface of the second cover 2, the first chamber wall 101 being parallel to the second chamber wall 204 so as to define the outlet section 501. In this embodiment, the slope angle θ of the end of the drainage surface 201 away from the first cover 1 is 67 degrees, the height D of the outlet section 501 of the flow channel 5 is 0.06mm, the diameter of the flow splitting chamber 6 is 3mm smaller than the outer diameter of the first cover 1, and the length l=1.5 mm=25×d of the outlet section 501.

The number of the connectors 3 is one and the connectors are arranged in the shunt chamber 6, and the lower ends of the connectors 3 are fixedly connected with the second cover body 2. In order to facilitate processing and prevent leakage of fluid from the mounting hole 8, the connector 3 includes a first connecting portion 301 and a second connecting portion 302, wherein the first connecting portion 301 and the second cover 2 are integrally formed, a threaded hole for connecting with the fastener 7 is formed in the center of the first connecting portion 301, the second connecting portion 302 is placed or adhered on the upper end surface of the first connecting portion 301, and a circular hole for the fastener 7 to pass through is formed in the center of the second connecting portion 302. The upper end of the first connecting portion 301 is flush with the upper end face of the second cover 2, the thickness of the second connecting portion 302 is equal to the height D of the outlet section 501 of the flow channel 5, and the second connecting portion 302 is made of a material with smaller hardness, such as a circular copper foil or aluminum foil or plastic sheet.

In the present embodiment, at the time of assembly, the second connection portion 302 is first placed on the upper end face of the first connection portion 301, then the first cover 1 is placed over the second cover 2, and then the fastener 7 is inserted into the mounting hole 8 and the fastener 7 is screwed with the second cover 2. Fig. 16 is a structural view of the present embodiment after the assembly is completed, and after the fastener 7 is tightened, the fastener 7 presses the first cover 1 against the second cover 2 while the second connecting portion 302 is sandwiched between the first cover 1 and the first connecting portion 301. Due to the existence of the second connecting portion 302 between the first cover 1 and the first connecting portion 301, a gap is formed between the edge of the first cover 1 and the second cover 2, the gap is the flow channel 5 for the gas to pass through, the width of the gap is equal to the thickness of the second connecting portion 302, and the width of the gap can be changed by replacing the second connecting portion 302 with different thickness. In addition, since the second connecting portion 302 is made of a material with smaller hardness, when the second connecting portion 302 is clamped between the first cover 1 and the first connecting portion 301, the second connecting portion 302 can be tightly attached to the first cover 1 and the first connecting portion 301, so that leakage of fluid from the position of the fastener 7 is prevented, and the second connecting portion 302 has the dual functions of defining the flow passage 5 and sealing.

Compared with embodiment 2, the structure of this embodiment is simpler, and the equipment is more convenient, can realize more quick equipment and disassemble, and it can guarantee that fluid is spouted from runner 5 uniformly moreover, clears away the filth on the product inner wall high-efficiently.

Example 4

Referring to fig. 22 to 26, the present embodiment provides yet another flow diverter 100, and the flow diverter 100 includes a first cover 1, a second cover 2, and a connector 3. The first cover body 1 is disc-shaped, an inflow hole 4 for inputting fluid is arranged in the center of the first cover body 1, the inflow hole 4 penetrates through the upper end and the lower end of the first cover body 1, internal threads are arranged on the inner wall of the inflow hole 4, and five jacks distributed in an annular array are further arranged on the first cover body 1. The first cover body 1 is located above the second cover body 2 and is connected with the second cover body 2 through the connecting body 3, the center of the first cover body 1 is aligned with the center of the upper end face of the second cover body 2 up and down, a gap exists between the first cover body 1 and the second cover body 2 to form a flow channel 5, the flow channel 5 is communicated with the inflow hole 4, the flow channel 5 extends to the edge of the first cover body 1, a drainage surface 201 is arranged on the peripheral wall of the second cover body 2, and fluid input from the inflow hole 4 can be sprayed out of the drainage device 100 from the flow channel 5 and flow along the drainage surface 201.

As shown in fig. 23, the second cover 2 is generally in a shape of a truncated cone, the upper end of the second cover 2 is a first end 202 of the second cover 2, the contour of the first end 202 is circular, and the projected contour line of the first cover 1 on the first end 202 is located within the contour line of the first end 202, in other words, the diameter of the first end 202 is larger than the diameter of the first cover 1. The lower end of the second cover 2 is a second end 203 of the second cover 2, the outline shape of the second end 203 is round, the edge of the first end 202 is used as the starting position of the drainage surface 201, the edge of the second end 203 is used as the ending position of the drainage surface 201, and the side surface of the second cover 2 is used as the drainage surface 201. The projected contour of the first end 202 on the second end 203 is located inside the second end 203, in other words, the diameter of the first end 202 is smaller than the diameter of the second end 203.

In this embodiment, the number of the connectors 3 is equal to the number of the jacks, the number of the connectors 3 is five, the lower ends of the connectors 3 are fixedly connected with the first end 202 of the second cover 2, and the five connectors 3 are distributed in an annular array on the first end 202 of the second cover 2. After the first cover body 1 and the second cover body 2 are assembled together, five connecting bodies 3 are distributed at intervals in the flow channel 5. When the first cover 1 and the second cover 2 are assembled together, the connectors 3 are inserted into the insertion holes in a one-to-one correspondence.

In a preferred embodiment, the cross section of the connector 3 is a shuttle. In the embodiment in which the connector 3 is disposed in the flow channel 5, designing the cross section of the connector 3 to be in a shuttle shape can reduce the influence of the connector 3 on the fluid flowing in the flow channel 5 as much as possible, so that the fluid flow fully covers the drainage surface 201, and further, the drainage device 100 can completely remove the dirt on the inner wall of the tubular product. Further, as shown in fig. 23, the extension of the long axis of the shuttle shape passes through the center of the end of the second cover 2 adjacent to the first cover 1, in other words, the extension of the long axis of the shuttle shape passes through the center of the first end 202, thereby ensuring that the connector 3 does not change the direction of movement of the fluid in the flow passage 5.

In this embodiment, the slope angle θ of the end of the drainage surface 201 away from the first cover 1 is 55 degrees, the height D of the outlet section 501 of the flow channel 5 is 0.15mm, the diameter of the flow splitting chamber 6 is about 5mm smaller than the outer diameter of the first cover 1, and the length l=17×d of the outlet section 501.

In this embodiment, during assembly, a part of the connector 3 is inserted into the insertion hole, so that the first cover 1 covers the flow dividing chamber 6, and a gap is formed between the edge of the first cover and the second cover 2 to form the flow channel 5. As shown in fig. 24, in the implementation, the connector 3 may be designed into an upper section and a lower section, where the upper section 303 is used to be inserted into a jack to connect with the first cover, the upper section 303 is sized to be inserted into the jack, the lower section 304 is fixedly connected with the second rod, the size of the lower section 304 is slightly larger than the size of the jack so as to prevent the connector 3 from being fully inserted into the jack, and the height of the lower section 304 is equal to the height of the outlet section 501 of the runner 5.

Example 5

As shown in fig. 27, the present embodiment is different from embodiment 1 in that the contour line of the projection of the first cover 1 on the first end 202 coincides with the contour line of the first end 202 in the present embodiment, in other words, the diameter of the first cover 1 is equal to the diameter of the first end 202.

Example 6

Referring to fig. 28 to 33, the present embodiment provides yet another flow diverter 100, and the flow diverter 100 includes a first cover 1, a second cover 2, and a connector 3.

As shown in fig. 28, the first cover 1 is a square plate, an inflow hole 4 for inputting fluid into the drainage device 100 is provided in the geometric center of the first cover 1, the inflow hole 4 penetrates through the upper end and the lower end of the first cover 1, internal threads can be machined on the inner wall of the inflow hole 4 so as to be connected with the quick connector 12 or a gas pipe (the gas pipe is provided with external threads matched with the internal threads), and four circular mounting holes 8 are further provided on the first cover 1. The first cover body 1 is located above the second cover body 2 and is connected with the second cover body 2 through the connecting body 3, the center of the first cover body 1 is aligned with the center of the upper end face of the second cover body 2 up and down, a gap exists between the first cover body 1 and the second cover body 2 to form a flow channel 5, the flow channel 5 is communicated with the inflow hole 4, the flow channel 5 extends to the edge of the first cover body 1, a drainage surface 201 is arranged on the peripheral wall of the second cover body 2, and fluid input from the inflow hole 4 can be sprayed out of the drainage device 100 from the flow channel 5 and flow along the drainage surface 201.

In the present embodiment, the second cover 2 has a first end 202 adjacent to the first cover 1, and the contour line of the projection of the first cover 1 on the first end 202 is located within the contour line of the first end 202. As shown in fig. 33, the upper end of the second cover 2 is the first end 202 of the second cover 2, the first end 202 is square, the side length of the first cover 1 is smaller than the side length of the first end 202, so that the side length of the first cover 1 is smaller than the side length of the first end 202, the purpose of ensuring that the fluid ejected from the flow channel 5 can flow against the drainage surface 201, and a sufficiently large negative pressure area 11 is formed around the first cover 1, so that more air can be sucked into the fluid flow, thereby obtaining better drying or cleaning effect. Also, in order to allow more air to be sucked into the fluid flow, the thickness of the edge of the first cover 1 should not be too large, for example, when the first cover 1 is made of an aluminum alloy, the thickness of the edge of the first cover 1 may be 2mm, and a chamfer may be provided at the edge of the upper end surface of the first cover 1.

The second cover 2 further has a second end 203 remote from the first cover 1, an edge of the first end 202 is used as a starting position of the drainage surface 201, an edge of the second end 203 is used as a termination position of the drainage surface 201, and a contour line of a projection of the first end 202 on the second end 203 is located inside the second end 203. As shown in fig. 33, the second cover 2 is substantially in a rectangular frustum shape, the first end 202 and the second end 203 of the second cover 2 are square, the side length of the first end 202 is smaller than the side length of the second end 203, the side surface of the second cover 2 is formed by four isosceles trapezoids, the side surface of the second cover 2 is used as the drainage surface 201, and the overall slope angle θ of the drainage surface 201 is 30 degrees.

As shown in fig. 33, in this embodiment, a rectangular parallelepiped-shaped sink is formed in the center of the upper end face of the second lid body 2 to form a flow dividing chamber 6, and one end of the first lid body 1 adjacent to the second lid body 2 and one end of the flow dividing chamber 6 adjacent to the first lid body 1 have the same shape. The flow passage 5 surrounds the diversion chamber 6 for one circle, and the inflow hole 4 and the flow passage 5 are communicated with the diversion chamber 6. As shown in this embodiment, the end of the first cover 1 adjacent to the second cover 2 (i.e., the lower end of the first cover 1 in fig. 33) is square, the end of the flow dividing chamber 6 adjacent to the first cover 1 (i.e., the upper end of the flow dividing chamber 6 in fig. 33) is square, and the center of the lower end of the first cover 1 is aligned with the center of the upper end of the flow dividing chamber 6, thereby ensuring that the flow channel 5 is in a "back" shape surrounding the flow dividing chamber 6 for one week, and such a structural design is advantageous for making the fluid ejected from each position of the flow channel 5 have the same flow velocity and flow rate.

Fig. 31 is an enlarged view of a portion of fig. 30 at iv, the flow channel 5 comprising an outlet section 501 and an inlet section 502, the outlet section 501 being adjacent to the edge of the first cover 1 and the inlet section 502 being adjacent to the flow distributing chamber 6. The outlet section 501 has a first cavity wall 101 constituted by part of the surface of the first cover 1 and a second cavity wall 204 constituted by part of the surface of the second cover 2, the first cavity wall 101 being parallel to the second cavity wall 204 so as to define the outlet section 501; the distance D between the first chamber wall 101 and the second chamber wall 204 has a value of 0.2mm and the length l=20×d of the outlet section 501. One cross-sectional shape of the inlet section 502 is shown in fig. 32, where the width of the right end of the inlet section 502 is smaller than the width of the left end of the inlet section 502, and the cross-sectional shape of the inlet section 502 is generally triangular.

The connector 3 in this embodiment includes a first connecting portion 301 and a second connecting portion 302, the lower end of the first connecting portion 301 is fixedly connected with the second cover 2, the second connecting portion 302 is disposed between the first connecting portion 301 and the first cover 1, and the lower end of the fastener 7 passes through the second connecting portion 302 and is in threaded connection with the first connecting portion 301. Wherein, be provided with the screw hole that matches with fastener 7 on the first connecting portion 301, be provided with the round hole that is used for fastener 7 to pass on the second connecting portion 302. The second connecting portion 302 may be made of a polymer material such as plastic, or may be made of copper (alloy) or aluminum (alloy), and under the action of the fastener 7, the second connecting portion 302 is clamped between the first connecting portion 301 and the first cover body, and the second connecting portion 302 may play a role in sealing, so as to prevent gas leakage from the mounting hole 8. In addition to the above-listed materials, the second connecting portion 302 may be made of other materials having a smaller hardness.

In order to facilitate the processing of the second cover 2, one end of the first connecting portion 301 is flush with one end of the second cover 2 adjacent to the first cover 1, and after the first cover 1 and the second cover 2 are connected by the fastener 7, the second connecting portion 302 has a gap between the first cover 1 and the second cover 2 to form the flow channel 5. As shown in fig. 33, the upper end of the first connection portion 301 is flush with the upper end of the second cover 2, and the thickness of the second connection portion 302 is equal to the distance D between the first chamber wall 101 and the second chamber wall 204. In an embodiment, the second connection portion 302 may be cut from a sheet material having a thickness D, which may be one of a plastic sheet, a copper foil, and an aluminum foil.

Example 7

The difference between this embodiment and embodiment 6 is that the contour line of the projection of the first cover 1 on the first end 202 in this embodiment coincides with the contour line of the first end 202, in other words, the side length of the first cover 1 is equal to the side length of the first end 202.

In embodiments 1 to 7, the case where the lower end face shape of the first cover 1 is circular or square is shown, the shape of the first end 202 of the second cover 2 in these embodiments is the same as the shape of the lower end face of the first cover 1, and the shape of the first end 202 of the second cover 2 is the same as the shape of the second end 203. In some embodiments, there are also situations where the shape of the first end 202 of the second cover 2 is different from the shape of the second end 203, for example: the first end 202 is circular in shape and the second end 203 is regular polygonal in shape.

Example 8

This embodiment differs from any one of embodiments 1 to 7 only in the shape of the second cover 2. In the present embodiment, the shape of the lower end surface of the second cover 2 adopts other regular or non-regular polygonal shapes, such as an equilateral triangle, a regular pentagon, a regular hexagon, and the like.

Example 9

Referring to fig. 34 to 39, the present embodiment provides yet another flow diverter 100, and the flow diverter 100 includes a first cover 1, a second cover 2, and a connector 3. The lower end of the first cover 1 is provided with a first spherical surface 102 which is concave upwards, and three mounting holes 8 are arranged on the first cover 1. The second cover 2 has a second spherical surface 205 protruding upward at an upper end thereof, and an inflow hole 4 for inputting fluid is provided at a center of the second cover 2. The number of the connectors 3 in this embodiment is three, the bottoms of the three connectors 3 are fixedly connected with the second cover body 2, the upper ends of the connectors 3 are inserted into corresponding mounting holes 8 to connect the first cover body 1 and the second cover body 2 together, and the connectors 3 are in interference fit with the mounting holes 8. After the first cover 1 and the second cover 2 are connected together, a gap is formed between the first spherical surface 102 and the second spherical surface 205 to form a flow passage 5, the flow passage 5 is communicated with the inflow hole 4, and a part of the surface of the second spherical surface 205 exposed outside forms a drainage surface 201.

Fig. 39 is a plan view of the present embodiment, in which the edge profiles of the first cover 1 and the second cover 2 are two concentric circles, and the edge profile of the first cover 1 is inside the edge profile of the second cover 2, in other words, the diameter of the edge profile of the first cover 1 is smaller than the diameter of the edge profile of the second cover 2. Referring to fig. 34, a portion of the second spherical surface 205 located outside the edge contour of the first lid body 1 serves as the drainage surface 201 in the present embodiment. Fig. 36 is a front view of the present embodiment, and the slope angle θ of the drainage surface 201 at the end far from the first cover 1 is 15 degrees, as shown in the figure. In this embodiment, the height D of the outlet section 501 of the flow channel 5 is 0.03mm, and the length l=1.5mm=50×d of the outlet section 501.

In the preferred embodiment, a cylindrical sinking groove is formed at the upper end of the second cover 2, and when the first cover 1 and the second cover 2 are connected together through the connector 3, the cylindrical sinking groove and the first spherical surface 102 of the first cover 1 together define the flow dividing chamber 6.

For the present embodiment, those skilled in the art will know that the objective of the present utility model can be achieved by adding the inflow hole 4 to the first cover 1 or simply disposing the inflow hole 4 on the first cover 1, which is not described in detail in this disclosure. Further, the number of the connectors 3 in the present embodiment may be appropriately increased or decreased by those skilled in the art, and for example, the number of the connectors 3 may be set to four or more.

Example 10

The difference between this embodiment and embodiment 9 is only that the slope angle θ of the end of the drainage surface 201 away from the first cover 1 is 5 degrees in this embodiment.

Example 11

Referring to fig. 40 to 45, the present embodiment provides yet another flow diverter 100, and the flow diverter 100 includes a first cover 1, a second cover 2, and a connector 3. The first cover 1 has a substantially quadrangular pyramid shape, and the lower end of the first cover 1 is provided with an upwardly concave pyramid surface 103, and the pyramid surface 103 is a quadrangular pyramid surface 103 formed by four triangular surfaces connected in sequence. The second cover 2 is substantially in a rectangular frustum shape, the side surface of the second cover 2 is four isosceles trapezoids connected in turn, the top surface 206 of the second cover is a rectangle, and the four isosceles trapezoids form the side surface of the second cover 2. An inflow hole 4 penetrating through the upper end and the lower end of the second cover body 2 is arranged in the center of the lower end face of the second cover body, four mounting holes 8 are formed in the periphery of the inflow hole 4, fastening pieces 7 are arranged in the mounting holes 8, and the fastening pieces 7 in the embodiment are bolts. In this embodiment, the four connectors 3 are all four, the four connectors 3 are in one-to-one correspondence with the four mounting holes 8, the tops of the four connectors 3 are all fixedly connected with the conical surface 103 on the first cover 1, and the lower ends of the connectors 3 are in contact with the top surface 206 of the second cover. Each connecting body 3 is provided with a threaded hole matched with the fastening piece 7, and the fastening piece 7 is screwed into the corresponding threaded hole to realize the connection between the first cover body 1 and the second cover body 2. It is preferable to apply a sealing treatment at the contact position of the connection body 3 and the second cover body 2, for example, a sealant between the connection body 3 and the second cover body 2, in such a manner as to further prevent leakage of the fluid. After the first cover 1 and the second cover 2 are connected together in this embodiment, a certain distance is kept between the conical surface 103 on the first cover 1 and the side surface on the second cover 2 by the rigid connector 3, so that a gap is formed between the conical surface 103 on the first cover 1 and the side surface of the second cover 2, the gap is the flow channel 5 through which fluid passes, and the flow distributing chamber 6 is defined between the conical surface 103 of the first cover 1 and the top surface 206 of the second cover, and the inflow hole 4, the flow distributing chamber 6 and the flow channel 5 are sequentially communicated.

Fig. 44 is a plan view of the present embodiment, in which the edge profiles of the first cover 1 and the second cover 2 are two squares of different sizes, and the edge profile line of the first cover 1 is inside the edge profile line of the second cover 2, in other words, the length and width of the first cover 1 are smaller than those of the second cover 2. As shown in fig. 40, a portion of the side surface of the second cover 2 located outside the edge contour line of the first cover 1 serves as a drainage surface 201 in the present embodiment. Fig. 43 is a sectional view of the present embodiment, and as seen in this figure, the slope angle θ of the drainage surface 201 at the end away from the first cover 1 is 3 degrees. The height D of the outlet section 501 of the flow channel 5 is 0.1mm, and the length l=3mm=30×d of the outlet section 501.

Referring to fig. 46 to 48, the present utility model further provides a tube cleaning device, which includes a fluid supply unit 300 and the drainage device 100 according to any of the foregoing embodiments, wherein the fluid supply unit 300 may be an air pump, a water pump or a gas cylinder filled with compressed air, the fluid supply unit 300 is connected to the inflow hole 4 through the pipeline 200, and the fluid supply unit 300 delivers the fluid into the diversion chamber 6.

In a specific implementation, the pipeline 200 for connecting the fluid supply unit 300 and the inflow hole 4 may be in two sections, wherein one section of pipeline 200 adopts a hose 10, the other section of pipeline 200 adopts a hard pipe 9 (such as a metal pipe), one end of the hose 10 is connected with one end of the hard pipe 9, the other end of the hose 10 is connected with the fluid supply unit 300, the other end of the hard pipe 9 is connected with the inflow hole 4, and the hard pipe 9 can be held by a hand to perform cleaning operation in use.

Referring to fig. 49, in some embodiments, the entire length of the pipe 200 connecting the fluid supply unit 300 and the inflow hole 4 may be a hose 10, and in order to facilitate the movement of the flow diverter 100, a rod 600 or a handle may be mounted on the first cover 1 or the second cover 2 of the flow diverter 100, where the connection position of the rod 600 or the handle and the first cover 1 or the second cover 2 should be as far away from the drainage surface 201 as possible.

Referring to fig. 50, in some embodiments, a driving mechanism 400 is used to drive the flow diverter 100 to move, the driving mechanism 400 is connected with the first cover 1 and/or the second cover 2, the driving mechanism 400 drives the flow diverter 100 to perform linear motion, and the motion direction of the flow diverter 100 is parallel to the thickness direction of the first cover 1. The aforementioned driving structure may be a cylinder, an electric cylinder or other linear modules, and the connection portion between the driving structure and the flow diverter 100 needs to be far away from the flow diversion surface 201. When the drainage device 100 needs to be repeatedly driven to do reciprocating linear motion, the driving structure can realize automation and improve cleaning efficiency.

The utility model also provides a method for cleaning the pipe body by using the pipe body cleaning device, and the pipe body cleaning method comprises the following steps:

Extending the drainage device 100 into one end of the pipe body 500, so that a certain interval exists between the edge of the drainage surface 201 and the inner wall of the pipe body 500;

opening the switch of the fluid supply unit 300 to introduce compressed gas into the diversion chamber 6;

the flow diverter 100 is driven to move in the pipe body 500 along the length direction of the pipe body 500, and impurities on the inner wall of the pipe body 500 are blown off by utilizing the air flow at the tail end of the flow diversion surface 201 in the process that the flow diverter 100 moves in the pipe body 500.

The distance between the edge of the drainage surface 201 and the pipe 500 is not easily too small nor too large. When the distance between the edge of the drainage surface 201 and the pipe body 500 is too small, the air flow cannot be fully blown to the other side of the drainage device 100, and a certain backflow is formed in the pipe body 500, so that the cleaning effect is greatly reduced; when the distance between the edge of the flow guiding surface 201 and the pipe 500 is too large, the air flow cannot be intensively blown toward the inner wall of the pipe 500, and the flow rate of the air becomes low, and in this case, the cleaning effect is also lowered. Through a plurality of experiments, the utility model finds that under the condition that only the distance between the edge of the drainage surface 201 and the inner wall of the pipe body 500 is a variable, the cleaning effect is more ideal when the distance (N in fig. 48) between the edge of the drainage surface 201 and the inner wall of the pipe body 500 is 3-7 mm; when the distance N between the edge of the drainage surface 201 and the inner wall of the tube body 500 is 5mm, the cleaning effect reaches the optimal state. In the test, it was found that the cleaning effect was optimal when the slope angle θ of the drainage surface 201 was 60 degrees, in the case where only the slope angle of the drainage surface 201 was a variable.

The flow directors 100 provided in embodiments 1-5, 9 and 10 of the present utility model are particularly suitable for cleaning dirt on the inner wall of a circular tube, and in these embodiments the flow directing surface 201 is a conical surface. The flow diverter 100 provided in examples 6, 7 and 11 of the present utility model is particularly suitable for cleaning dirt on the inner wall of a square tube. The drainage device 100 provided in embodiment 8 of the present utility model is particularly suitable for cleaning dirt on the inner wall of a polygonal pipe (a pipe body 500 with a polygonal cross section), and when cleaning a polygonal pipe, the shape of the lower end surface of the second cover 2 is matched with the shape of the cross section of the pipe body 500, in other words, the shape of the lower end surface of the second cover 2 and the shape of the cross section of the pipe body 500 form a similar polygon.

In the preferred embodiment, the fluid supply unit 300 provides a compressed air pressure of 0.57-0.8 MPa, and the air flow ejected from the end of the drainage surface 201 can remove dirt on the inner wall of the tube 500 well when the air source pressure is within this range.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A drainage device, characterized in that: including first lid, second lid and connector, first lid with be equipped with on the second lid at least one and be used for inputing fluidic inflow hole, first lid pass through the connector with the second lid is connected, first lid with there is the clearance between the second lid in order to form the runner, the runner with inflow hole intercommunication, the runner extends to the edge of first lid, be equipped with the drainage face on the peripheral wall of second lid, follow fluid that the inflow hole input can follow the runner sprays to outside the drainage ware and along the drainage face flows, the drainage is used for the cleanness of tubulose object inner wall.

2. The flow diverter of claim 1, wherein: the second cover body is provided with a first end adjacent to the first cover body, and the projection contour line of the first cover body on the first end is coincident with the contour line of the first end or is positioned in the contour line of the first end.

3. The flow diverter of claim 2, wherein: the projected contour line of the first cover body on the first end is located inside the contour line of the first end.

4. The flow diverter of claim 3, wherein: the second cover body is further provided with a second end far away from the first cover body, a projection contour line of the first end on the second end is located on the inner side of the second end, the edge of the first end is used as a starting position of the drainage surface, and the edge of the second end is used as a termination position of the drainage surface.

5. The flow diverter of any one of claims 1 to 4, wherein: the slope angle of the drainage surface far away from one end of the first cover body is larger than 0 degree and smaller than 67 degrees.

6. The flow diverter of claim 5, wherein: the slope angle of the drainage surface far away from one end of the first cover body is more than or equal to 30 degrees and less than or equal to 60 degrees.

7. The flow diverter of claim 6, wherein: the slope angle of the drainage surface far away from one end of the first cover body is 60 degrees.

8. The flow diverter of any one of claims 1-4, 6, 7, wherein: the flow channel comprises at least an outlet section, wherein the outlet section is adjacent to the edge of the first cover body; the outlet section has a first chamber wall formed by a portion of the surface of the first cover and a second chamber wall formed by a portion of the surface of the second cover, the first chamber wall being parallel to the second chamber wall to define the outlet section.

9. The flow diverter of claim 8, wherein: the distance D between the first cavity wall and the second cavity wall ranges from 0.03mm to 0.2mm, and the length L of the outlet section is more than or equal to 17 x D.

10. The flow diverter of claim 9, wherein: the distance D between the first cavity wall and the second cavity wall is in the range of 0.06mm to 0.15mm.

11. The flow diverter of any one of claims 1-4, 6, 7, 9, 10, wherein: a flow dividing chamber is arranged between the second cover body and the first cover body, and the inflow hole and the flow passage are communicated with the flow dividing chamber.

12. The flow diverter of claim 11, wherein: the end of the first cover body adjacent to the second cover body and the end of the shunt chamber adjacent to the first cover body have the same shape.

13. The flow diverter of claim 12, wherein: and a sinking groove is arranged at one end of the second cover body, which is close to the first cover body, so as to form the diversion chamber.

14. The flow diverter of claim 11, wherein: the connecting body is arranged in the shunt chamber, one end of the connecting body is fixedly connected with the second cover body, a mounting hole is formed in the first cover body, a fastener is arranged in the mounting hole, one end of the fastener is connected with the connecting body, and the other end of the fastener presses the first cover body and enables the first cover body to be in seamless connection with the connecting body.

15. The flow diverter of claim 14, wherein: the connector comprises a first connecting part and a second connecting part, the first connecting part is fixedly connected with the second cover body, the second connecting part is arranged between the first connecting part and the first cover body, and one end of the fastener penetrates through the second connecting part and is connected with the first connecting part.

16. The flow diverter of claim 15, wherein: one end of the first connecting part is flush with one end, close to the first cover, of the second cover, and after the first cover is connected with the second cover through the fastener, a gap is formed between the first cover and the second cover by the second connecting part so as to form the flow channel.

17. The flow diverter of claim 16, wherein: the second connecting part is made of any one of plastic, copper, aluminum, copper alloy and aluminum alloy.

18. The flow diverter of any one of claims 1-4, 6, 7, 9, 10, 12-17, wherein: the number of the connectors is a plurality, and the connectors are distributed in the flow channel at intervals.

19. The flow diverter of claim 18, wherein: the cross section of the connecting body is a shuttle.

20. The flow diverter of claim 19, wherein: an extension line of the long axis of the shuttle-shape passes through a center of one end of the second cover body adjacent to the first cover body.

21. A pipe cleaning device which is characterized in that: comprising a fluid supply unit and a flow diverter according to any one of claims 1 to 20, the fluid supply unit being connected to the inflow opening by a pipe, fluid being conveyed by the fluid supply unit into the diversion chamber.

22. The tube cleaning device of claim 21, wherein: the novel drainage device further comprises a driving mechanism, wherein the driving mechanism is connected with the first cover body and/or the second cover body, the driving mechanism drives the drainage device to do linear motion, and the motion direction of the drainage device is parallel to the thickness direction of the first cover body.