TW202244366A - Dredging method for drainpipe using pressurized water and air - Google Patents

Abstract

The invention relates to a dredging method for a drainpipe, which is suitable for dredging a drainpipe arranged on a wall with pressurized water and air. The dredging method of the drainpipe is first to align a body unit of a drainpipe dredging device with the drainpipe, and then airtightly connect a connection unit of the drainpipe dredging device to the wall. Then, the pressurized water and air are introduced through an end of the body unit relatively away from the drainpipe and enter the drainpipe through the body unit to dredge the drainpipe. Given air molecules are small, they can pass through gaps between foreign objects in the water and effectively push the foreign objects to move to dredge the drainpipe. The connection unit is airtightly connected to the wall, so that water sprayed back during the dredging process can be prevented from splashing to the outside.

Description

How to clear the drain pipe

The invention relates to a drainage pipe, in particular to a dredging method for the drainage pipe.

Generally, when the drainage pipe is blocked by foreign matter and needs to be dredged, a water pipe is usually inserted into the drainage pipe and washed with a high-pressure water column. After the foreign matter is displaced by the high-pressure impact force of the water column, the drainage pipe can be dredged.

However, when using the high-pressure water column to dredge the drainage pipe, although the water column is pressurized, because a lot of water has accumulated in the drainage pipe, the pressurized water column will reduce the impact force after contacting the accumulated water, so when the blocked When the position is deep or the foreign matter is attached to the pipe wall of the drainage pipe, the high-pressure water column still cannot effectively displace the foreign matter, so the drainage pipe cannot be effectively dredged.

In addition, in the process of dredging the drainage pipes, the accumulated water is often affected by the impact of the high-pressure water column, which will cause the pressure to increase and spray back to the drain. This will not only affect the dredging operation, but also cause the accumulated water to splash The surfaces around the drains are dirty and need to be improved.

Therefore, the object of the present invention is to provide a method for unblocking drainage pipes which overcomes at least one of the disadvantages of the prior art.

Therefore, the dredging method of the drain pipe of the present invention is suitable for allowing pressurized water and air to pass through to dredge a drain pipe disposed on a wall. The dredging method of the drain pipe includes the following steps 1 and 2.

Step 1. Matching a body unit of a drain pipe dredging device to the drain pipe, and airtightly connecting a connecting unit of the drain pipe dredging device to the wall.

Step 2: Input the pressurized water and air through the end of the body unit relatively away from the drain pipe and enter the drain pipe through the body unit to dredge the drain pipe.

The effect of the present invention is: by airtightly connecting the connection unit to the wall, the water sprayed back during the dredging process can be prevented from splashing to the outside of the drainage pipe dredging device, and the pressurized water and The air is input into the drainage pipe through the body unit, and because the molecules of the air are small, it can help to pass through the gaps between several foreign objects in the water, so that the relative displacement of the foreign objects can be effectively pushed to dredge the drainage pipe.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numerals.

Referring to FIG. 1 to FIG. 3 , a first embodiment of the drainage pipe dredging method of the present invention is suitable for allowing pressurized water and air to pass through to dredge a drainage pipe 12 disposed on a wall 11 . The wall body 11 has a surface 111 . The drainage pipe 12 is provided with several foreign objects (not shown in the figure), and has a drainage port 121 formed on the surface 111 . The surface 111 has a surrounding portion 112 surrounding the water outlet 121 . In this embodiment, the wall body 11 is arranged on a urinal (only the wall body 11 is shown in FIG. 3 ).

Referring to Fig. 2 to Fig. 5, the dredging method of the drainage pipe includes the following steps 1 and 2.

Step 1. Match a body unit 2 of a drainage pipe dredging device to the drainage pipe 12, and airtightly connect a connecting unit 3 of the drain pipe dredging device to the wall 11 (see the first figure from the left in Fig. 5 ).

Wherein, the body unit 2 of the drainage pipe dredging device includes a base part 21, a drainage chamber 22 and an air pressure chamber 23 arranged on the base part 21 and isolated from each other, and a pressure relief valve arranged on the base part 21 twenty four. The base member 21 has a pipe portion 211, an enlarged portion 212 connecting one end of the pipe portion 211 adjacent to the drain port 121, and six extension portions connected to the enlarged portion 212 and extending toward the drain port 121. 213. The drainage chamber 22 has two drainage inlets 221 formed on the tube portion 211 and suitable for introducing pressurized water and air, and a drainage outlet 222 formed on the enlarged portion 212 and corresponding to the drain outlet 121 . The air pressure chamber 23 has a first opening 231 formed in the enlarged portion 212 of the base member 21, six second openings 232 respectively formed in the extending portions 213, and a communication channel between the first opening 231 and the extending portions 213. The communication area 235 between the second openings 232 . In this embodiment, the air pressure chamber 23 has six second openings 232, but not limited thereto, the second openings 232 are arranged at intervals around the drainage outlet 222, and the communication area 235 surrounds and connects with the drainage outlet. 222 are separated from each other and extend from the enlarged portion 212 to the extending portions 213 so that the second openings 232 communicate with the first opening 231 .

Wherein, the connection unit 3 includes a connection body 31 made of deformable material and connected to the base member 21 , a drainage channel defined by the connection body 31 and connected between the drainage chamber 22 and the drainage pipe 12 . chamber 32, and six connection chambers 33 formed in the connection body 31. The connecting chambers 33 correspond to the surrounding portion 112 and respectively correspond to and communicate with the second openings 232 , and allow the extending portions 213 to extend respectively. In this embodiment, the connection body 31 is made of rubber material, and the extension parts 213 of the body unit 2 are made of a material whose hardness is greater than that of the connection body 31 .

Wherein, the connection unit 3 covers the connection body 31 of the connection unit 3 on the surrounding portion 112 of the wall body 11, and pumps air to the first opening 231 to pass through the second openings 232 respectively. The connection chamber 33 is pumped to reduce the gas pressure in the connection chamber 33 , so that the connection body 31 is covered and airtightly connected to the surrounding portion 112 .

Step 2: Input the pressurized water and air through the end of the body unit 2 relatively away from the drain pipe 12 and enter the drain pipe 12 through the body unit 2 to dredge the drain pipe 12 (see the second figure from the left in Figure 5 ).

Wherein, pressurized water and air respectively flow in through the drainage inlets 221 of the drainage chamber 22 , and are input into the drainage pipe 12 through the drainage outlet 222 and the drainage chamber 32 .

Wherein, when the fluid pressure in the drainage chamber 22 is greater than a predetermined pressure relief pressure, the pressurized water and air are temporarily input into the drainage chamber 22, and the pressure relief valve 24 is opened so that part of the fluid in the drainage chamber 22 It is discharged through the pressure relief valve 24 (see the third figure from the left in Figure 5), and the pressure relief valve 24 is closed when the fluid pressure in the drainage chamber 22 is lower than a predetermined working pressure, so that the fluid in the drainage chamber 22 cannot It is discharged through the pressure relief valve 24, and the pressurized water and air are input into the drainage chamber 22 and the drainage pipe 12 again (see the second figure from the right in FIG. 5 ).

Through the above steps 1 and 2, when the pressurized water and air are input into the drainage pipe 12 through the body unit 2, since the molecules of the air are small, it can help to pass through the gaps between the foreign objects in the water, The impact force provided by the pressurized water can help to push heavier foreign matter, so it can effectively promote the relative displacement of these foreign bodies to dredge the drainage pipe 12. In addition, because the drainage pipe dredging device is airtight The ground is connected to the wall body 11, which can prevent the water sprayed back in the dredging process from splashing to the outside of the drainage pipe dredging device.

After completing the dredging operation of the drainage pipe 12 according to the above steps 1 and 2, the air can be further input into the connecting chambers 33 through the first opening 231 and the second openings 232, so that the The gas pressure in the connection chamber 33 is increased, so that the connection body 31 can be removed from the surrounding portion 112 .

According to the above description, the dredging method of the drainage pipe has the following advantages:

1. By connecting the connecting unit 3 airtightly to the surrounding portion 112 , the water sprayed back can be prevented from flowing out through the joint between the connecting body 31 and the surrounding portion 112 , thus avoiding causing environmental pollution.

2. By inputting pressurized water and air into the drainage pipe 12 through the body unit 2, since the air molecules are small, it can help to pass through the gaps between the foreign objects in the water, and the pressurized water The impact force that can be provided is relatively large, which is helpful to push the heavy foreign matter, so it can effectively push the foreign matter to move relative to each other to dredge the drainage pipe 12 .

Three, by setting the pressure relief valve 24, when the fluid pressure in the drainage chamber 22 is greater than the predetermined pressure relief pressure, the pressure relief valve 24 can be opened to release the pressure, which can prevent the pressure of the drainage chamber 22 from being too large and causing the The water in the drain pipe 12 flows out through the joint between the connecting body 31 and the surrounding portion 112 , thereby avoiding environmental pollution.

4. In addition, by connecting the connecting body 31 airtightly to the surrounding portion 112, when the drain grille is fixed above the drain port 121, the drain pipe dredging device can also be fixed above the drain port 121 The drain pipe 12 is dredged for pressurized water and air to pass through.

It should be noted that in this embodiment, one air pressure chamber 23 and one first opening 231 are provided, and the number of the second openings 232 and the connecting chambers 33 are six, but not limited thereto, In other embodiments, only one second opening 232 and one connection chamber 33 can be provided, or other numbers of air pressure chambers 23, first openings 231, second openings 232 and connection chambers 33, and the air pressure chambers 23, The number of the first opening 231, the second opening 232 and the connection chamber 33 can also be different (for example: several second openings 232 correspond to one connection chamber 33 at the same time, only one air pressure chamber 23 and have one connected to several The first opening 231, the second opening 232, etc.), as long as the air in the connecting chambers 33 (or the connecting chamber 33) can be extracted through the first openings 231 (or the first openings 231), it can also be achieve the same purpose.

It is worth mentioning that, in this embodiment, the drainage chamber 22 has two drainage inlets 221, and the drainage inlets 221 are respectively suitable for introducing pressurized water and air. However, in other implementation states In a sample, the drainage chamber 22 may also have only one drainage inlet 221, and the drainage inlet 221 can simultaneously introduce pressurized water and air.

In addition, in this embodiment, the connection body 31 is made of rubber material, the extensions 213 of the body unit 2 are made of a material with a hardness greater than that of the connection body 31, and the extensions 213 are respectively Extending to the connection chambers 33, it can provide support for the connection body 31, so that when the gas pressure in the connection chambers 33 decreases, the connection body 31 will not be deformed excessively and can be well attached to the surrounding Section 112 on.

In addition, the aperture of the discharge chamber 32 can be greater than, smaller than or equal to the aperture of the drain port 121, as long as the connecting chambers 33 can correspond to the surrounding portion 112 and the connecting body 31 can be attached to the surrounding portion 112. can achieve the same purpose.

It should be noted that, in this embodiment, the wall body 11 is set on a urinal, so the surface 111 is slightly curved, but not limited thereto, the wall body 11 can also be set on a floor, a A sink, or a pool, etc., and the surface 111 can also be straight.

Referring to Fig. 6 to Fig. 8, a second embodiment of the dredging method of the drainage pipe of the present invention is similar to the first embodiment, and its difference is:

The wall body 11 also has a surrounding surface 113 surrounding an end of the drain pipe 12 adjacent to the drain opening 121 .

7 to 10, in this step one, the base part 21 of the body unit 2 has an insertion section 214 suitable for being inserted into the drainage pipe 12 and having an outer diameter smaller than the hole diameter of the drainage pipe 12, an The exposed section 215 outside the wall body 11 and a dredging section 216 connected to a side of the inserted section 214 opposite to the exposed section 215 .

The drainage inlets 221 of the drainage chamber 22 are disposed on the exposed section 215 , and the drainage outlet 222 is formed on the dredging section 216 .

The air pressure chamber 23 of the body unit 2 has a first air port 233 formed in the exposed section 215 and a second air port 234 formed in the inserted section 214 .

The connecting unit 3 includes a connecting piece 34 set on the insertion section 214 of the base member 21, and two connecting pieces 34 respectively connected to opposite ends of the connecting piece 34 so that the connecting piece 34 extends along the extending direction of the base member 21. Relative to the insertion section 214 , the positioning of the collar 35 is produced. A chamber 36 with a variable volume and communicating with the second air port 234 is formed between the connecting member 34 and the insertion section 214 of the base member 21 . In this embodiment, the tie ring 35 located above the connecting member 34 is fixedly connected to the base member 21 , and the tie ring 35 located below the connecting member 34 is screwed to the base member 21 .

The drainage pipe dredging device is to make the connecting member 34 press against the surrounding surface 113 by partially inserting the base member 21 into the drainage pipe 12 and supplying air to the first air port 233 to increase the volume of the chamber 36, To be airtightly connected with the surrounding portion 112 of the wall body 11 (see the first figure from the left in FIG. 10 ).

In the second step, the pressurized water and air respectively flow in through the drainage inlets 221 of the drainage chamber 22 , and enter the drainage pipe 12 through the drainage outlet 222 (see the second figure from the left in FIG. 10 ).

After completing the dredging operation of the drain pipe 12 according to the step 1 and the step 2, pump air to the first air port 233 to reduce the volume of the chamber 36, so that the connecting piece 34 no longer presses against the surrounding surface 113 (see the first figure from the right in FIG. 10 ), and then the base part 21 can be taken out from the drainage pipe 12 .

It is worth mentioning that, in this embodiment, the outer surface of the connecting member 34 is formed with four spaced apart ring-shaped convex ribs 341 around the insertion section 214 , when the connecting member 34 presses against the surrounding surface 113 At this time, the ribs 341 can form a multi-stage airtight connection with the surrounding surface 113 to achieve a better effect of blocking water. For example, in FIG. 8, two ribs 341 are pressed against the surrounding surface 113, When the water sprays back, the two ribs 341 pressed against the surrounding surface 113 can provide a two-stage blocking effect, that is, when the pressure in the drainage pipe 12 is too high, the water sprayed back When the pressure is too large to pass between the lower convex rib 341 and the surrounding surface 113 , the upper convex rib 341 can further block the water from further flushing upward.

In this way, the second embodiment can also achieve the same purpose and effect as the first embodiment.

To sum up, the dredging method of the drainage pipe of the present invention can avoid splashing of the water sprayed back to the drainage pipe during the dredging process by airtightly connecting the connecting unit 3 of the drainage pipe dredging device to the wall body 11. The outside of the pipe dredging device, and by inputting the pressurized water and air into the drain pipe 12 through the body unit 2 of the drain pipe dredging device, since the air molecules are small, it can help to pass several foreign objects in the water Therefore, it can effectively promote the relative displacement of these foreign bodies to dredge the drainage pipe 12, so the purpose of the present invention can be really achieved.

But the above-mentioned ones are only embodiments of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of the present invention.

11: Wall 111: surface 112: Surrounding part 113: around the surface 12: Drain pipe 121: Outlet 2: Body unit 21: Basic parts 211: pipe department 212: Expansion Department 213: Extension 214: insert segment 215: Exposure section 216: Dredge section 22: Drainage chamber 221: drainage entrance 222: drainage outlet 23: Pneumatic chamber 231: first opening 232: second opening 233: The first gas port 234: The second gas port 235: Connected area 24: Pressure relief valve 3: Connection unit 31: Connect the body 32: Drainage chamber 33: Connection room 34: connector 341: convex rib 35: beam ring 36: Containment room

Other features and effects of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein: Fig. 1 is a three-dimensional assembled view of a drainage pipe dredging device of a first embodiment of the drainage pipe dredging method of the present invention; Fig. 2 is a partial three-dimensional exploded view of the drainage pipe dredging device of the first embodiment; Fig. 3 is a schematic cross-sectional view of the drainage pipe dredging device of the first embodiment, illustrating that air is drawn from a first opening to extract the air in several connecting chambers, so that a connecting body is airtightly connected to a surrounding part, It also explains that the pressurized water and air are respectively input into a drainage pipe through two drainage inlets; Fig. 4 is another schematic cross-sectional view of the drainage pipe dredging device of the first embodiment, illustrating opening a pressure relief valve to discharge part of the fluid in a drainage chamber through the pressure relief valve; Fig. 5 is a schematic diagram illustrating the flow process of the first embodiment; Fig. 6 is a three-dimensional assembled view of a drainage pipe dredging device according to a second embodiment of the drainage pipe dredging method of the present invention; Fig. 7 is a partial three-dimensional exploded view of the drainage pipe dredging device of the second embodiment; Fig. 8 is a schematic cross-sectional view of the drainage pipe dredging device of the second embodiment, illustrating that the volume of a chamber is increased by supplying air to a first gas port, so that a connecting piece is pressed against a surrounding surface, and it is illustrated that the increase will be made. The pressurized water and air are respectively input through two drainage inlets and enter a drainage pipe; Fig. 9 is another schematic cross-sectional view of the drainage pipe dredging device of the second embodiment, illustrating opening a pressure relief valve to discharge part of the fluid in a drainage chamber through the pressure relief valve; and FIG. 10 is a schematic diagram illustrating the flow of the second embodiment.

12: Drain pipe

2: Body unit

22: Drainage chamber

24: Pressure relief valve

3: Connection unit

31: Connect the body

32: Drainage chamber

33: Connection room

Claims (8)

A method for dredging a drainage pipe is suitable for passing pressurized water and air to dredge a drainage pipe arranged on a wall. The method for dredging the drainage pipe includes the following steps: (A) Corresponding a body unit of a drain pipe dredging device to the drain pipe, and airtightly butting a connection unit of the drain pipe dredging device to the wall; and (B) Input the pressurized water and air through the end of the body unit relatively away from the drain pipe and enter the drain pipe through the body unit to dredge the drain pipe. The dredging method of the drainage pipe as described in claim 1, wherein, in the step (A), the body unit of the drainage pipe dredging device includes a base member, a drainage chamber arranged on the base member, and a set In the step (B), the pressurized water and air are input into the drain pipe through the drainage chamber of the drainage pipe dredging device, and the fluid pressure in the drainage chamber When the pressure is greater than a predetermined relief pressure, stop the pressurized water and air from entering the drainage chamber, and open the pressure relief valve to discharge part of the fluid in the drainage chamber through the pressure relief valve. When the working pressure is lower than a predetermined working pressure, close the pressure relief valve so that the fluid in the drainage chamber cannot be discharged through the pressure relief valve, and then input the pressurized water and air into the drainage chamber and the drainage pipe again. The method for dredging a drainage pipe as claimed in claim 1, wherein the wall body has a surface, the drainage pipe has a drain opening formed on the surface, and the surface has a surrounding portion surrounding the drain opening. In this step In (A), the connecting unit of the drain dredging device is covered and airtightly connected to the surrounding portion of the wall. The dredging method of the drainage pipe as described in claim 3, wherein, in the step (A), the body unit of the drainage pipe dredging device includes a base part, and a drainage chamber arranged on the base part, the connection The unit includes a connection body made of deformable material and connected to the base, a discharge chamber defined by the connection body and connected between the drainage chamber and the drainage pipe, and at least one formed on the connection body The connecting chamber, the drainage pipe dredging device is to reduce the gas pressure in the connecting chamber by pumping air to the connecting chamber, so that the connecting body is airtightly connected to the surrounding part, in the step (B) The pressurized water and air are input into the drainage pipe through the drainage chamber and the drainage chamber of the drainage pipe dredging device. The dredging method of the drainage pipe as claimed in claim 4, wherein, in the step (A), the drainage chamber of the drainage pipe dredging device has two drainage inlets and a drainage outlet connected to the drainage chamber, and in the In step (B), pressurized water and air respectively flow in through the drainage inlets, and enter the drainage pipe through the drainage outlets. The method for dredging a drainage pipe according to claim 1, wherein the wall body has a surface, the drainage pipe has a drain opening formed on the surface, and the wall body also has a In the step (A), the drainage pipe dredging device is partially inserted into the drainage pipe and airtightly connected to the surrounding surface of the wall. The method for dredging a drainage pipe as claimed in item 6, wherein, in the step (A), the body unit of the drainage pipe dredging device includes a base member, and a drainage chamber arranged on the base member and isolated from each other and an air pressure chamber, the air pressure chamber has a first air port and a second air port formed on the base part, the connection unit includes a set of connecting parts set on the base part, and a movable connecting part is formed between the connecting part and the base part A chamber that changes volume and communicates with the second air port. The drainage pipe dredging device is to insert the base part into the drainage pipe and supply air to the first air port to increase the volume of the chamber, so that the connecting piece Pressing against the surrounding surface to airtightly connect with the surrounding portion of the wall, in the step (B), pressurized water and air are input into the drainage pipe through the drainage chamber of the drainage pipe dredging device. The dredging method of the drainage pipe as claimed in claim 7, wherein, in the step (A), the drainage chamber of the drainage pipe dredging device has two drainage inlets and a drainage outlet, and in the step (B), Pressurized water and air respectively flow in through the drainage inlets, and are input into the drainage pipe through the drainage outlets.

Images