Plug device for a drain cleaner and drain cleaner

Abstract

The utility model belongs to pipeline dredging tool technical field, concretely relates to a plug device for dredging device and dredging device. Dredging device includes dredging device main part and plug device, plug device, include: plug main part, inside has the gas passage that penetrates through;Sealing air bag, is encased in plug main part, forms sealed cavity between both;And inflation mechanism, is used for the inflation of sealed cavity to make sealing air bag inflation;Sealing air bag has the air cock that communicates sealed cavity integrally, and this air cock is connected inflation mechanism through gas pipe joint assembly. The utility model's sealing air bag connects gas pipe joint assembly and inflation mechanism directly through the air cock of integrated molding, compared with the conventional structure that needs to punch on plug main part and sealing air bag and installs metal joint, can effectively prevent the leakage problem that sealing air bag produces because of punching, has improved the sealing performance of product.

Description

Technical Field

[0001] This utility model belongs to the technical field of pipe dredging tools, specifically relating to a plug device for a dredging tool and a dredging tool. Background Technology

[0002] Clogged drains and toilets are common occurrences in daily life, and pneumatic drain cleaners are a popular tool for solving such problems. It mainly consists of a main body that generates high-pressure gas and a plug that seals the pipe. When in use, the plug is pressed tightly against the pipe opening to form a seal, and then the high-pressure gas is released instantly. This powerful airflow impacts the pipe, effectively clearing the blockage. At the same time, the plug prevents sewage and debris from splashing back out, making it safe and efficient.

[0003] The utility model patent with authorization announcement number CN206319374 U discloses a pneumatic sealing head, which includes a drain head body, an inflation end body mounted on the drain head body, a plurality of holes provided on the inflation end body, an inflation port provided on the drain head body, the inflation port being connected to the inflation end body through an inflation pipe, an inflation bladder being installed on the outside of the inflation end body and fixed to the drain head body by a sealing screw, an air hole being provided on one side of the inflation bladder, an air release valve being provided on the other side of the inflation bladder, and the inflation bladder being connected to the inflation port through an air supply pipe.

[0004] In the above structure, holes are typically required on both the drain head body where the inflation port is located and the corresponding inflation bladder to accommodate a metal connector. The outer end of the metal connector forms the inflation port for connecting the air supply pipe, while the inner end connects to the inflation head body and the inflation bladder. When the inflation bladder inflates, there is a risk of tearing and leakage at the perforated location, affecting the sealing performance of the air pressure sealing head and potentially increasing after-sales maintenance or return costs. Furthermore, the perforation process is time-consuming and labor-intensive.

[0005] In addition, the direct connection between the gas pipe and the filling port of the metal connector via an interference fit can easily lead to gas leakage, increasing after-sales maintenance costs. Utility Model Content

[0006] The purpose of this utility model is to provide a plug device for a drain cleaner that has a simple structure, good sealing performance, and low maintenance rate, as well as a drain cleaner.

[0007] The present invention adopts the following technical solution:

[0008] A drain plug device includes: a plug body having a through gas channel inside; a sealing airbag fitted onto the plug body, forming a sealed cavity between the two; and an inflation mechanism for inflating the sealed cavity and expanding the sealing airbag; wherein the sealing airbag has an integrally formed air nozzle communicating with the sealed cavity, the air nozzle being connected to the inflation mechanism via an air pipe connector assembly.

[0009] The drain plug device proposed in this utility model also has the following features: the sealing airbag has a first mounting end, a second mounting end, and an airbag peripheral wall portion located between the two; the plug body includes: an airbag support tube, which is hollow inside and passes through the first mounting end and the second mounting end, and has a first abutting portion for abutting against the inner wall of the first mounting end; and a first fixing member, which is the air inlet end of the airbag support tube and presses the first mounting end onto the first abutting portion.

[0010] The plug device for drain cleaner proposed in this utility model also has the following features: the air nozzle is located on the first mounting end; the air inlet end of the first fixing member or airbag support tube has a main connector for connecting to the main body of the drain cleaner.

[0011] The drain plug device proposed in this utility model also has the following feature: the air nozzle is located outside the first fixing member, or the first fixing member is provided with a clearance part, and the air nozzle passes through the clearance part and connects to the air pipe connector assembly.

[0012] The plug device for the drain cleaner proposed in this utility model also has the following features: the first fixing member has a first fixing body, one end of the first fixing body is formed with a main connector, the other end is provided with a first internal thread and a first external fixing part for abutting against the first installation end; the air inlet end of the airbag support tube is provided with a first external thread that matches the first internal thread; a gas channel is formed between the first fixing member and the airbag support tube.

[0013] The plugging device for a drain cleaner proposed in this utility model also has the following features: the first fixing member has a second fixing body, one end of which is formed with a hose mounting part, and the other end is provided with a second internal thread and a second external fixing part for abutting against the first mounting end; the air inlet end of the airbag support tube is provided with a first external thread that matches the second internal thread; the plugging device also includes a hose, a first hose fixing cap, a second hose fixing cap, and a hose connector, one end of which is connected to the drain cleaner body through the first hose fixing cap and the hose connector, and the other end of which is connected to the hose mounting part through the second hose fixing cap.

[0014] The plug device for drain cleaning proposed in this utility model also has the following features: the airbag support tube has a second abutment portion for abutting against the inner wall of the second mounting end; the plug body also includes a second fixing member, which is installed at the air outlet end of the airbag support tube and presses the second mounting end onto the second abutment portion; or / and, a first gasket is provided between the first fixing member and the first mounting end; or / and, a second gasket is provided between the second fixing member and the second mounting end.

[0015] The plug device for the drain cleaner proposed in this utility model also has the following feature: the air pipe connector assembly includes: an air pipe connector body, one side of which extends a first threaded portion and a first insertion portion for inserting into an air nozzle, and the other side of which extends a second threaded portion and a second insertion portion for inserting into an air pipe of an inflation mechanism, wherein an air passage is provided between the first insertion portion, the first threaded portion, the second threaded portion and the second insertion portion; an air nozzle connector cap, which is fitted over the air nozzle and fixed on the first threaded portion for locking the air nozzle; and an air pipe connector cap, which is fitted over the air pipe and fixed on the second threaded portion for locking the air pipe.

[0016] The drain plug device proposed in this utility model also has the following feature: the outer sides of the first insertion part and the second insertion part are provided with buckles.

[0017] A drain cleaner includes a drain cleaner body and a plug device, wherein the plug device is the aforementioned drain cleaner plug device.

[0018] The outstanding and beneficial technical effects of this utility model compared to the prior art are:

[0019] 1. The sealing airbag of this utility model is directly connected to the air pipe connector assembly and the inflation mechanism through an integrally formed air nozzle. Compared with the traditional structure that requires drilling holes in the plug body and sealing airbag and installing metal connectors, it can effectively prevent leakage problems caused by drilling in the sealing airbag and improve the sealing performance of the product. At the same time, it saves the labor and time costs required for drilling, optimizes the assembly process, and simplifies the installation process.

[0020] 2. The first fixing member of this utility model is installed at the air inlet end of the airbag support tube and presses the first mounting end onto the first abutment part to achieve a sealing of the mounting hole of the first mounting end; the second fixing member is installed at the air outlet end of the airbag support tube and presses the second mounting end onto the second abutment part to achieve a sealing of the mounting hole of the second mounting end, which helps to ensure the airtightness of the sealing cavity.

[0021] 3. This utility model is equipped with a flexible hose, which has a certain deformation capacity and can better adapt to the bending of the pipeline, especially the toilet pipe.

[0022] 4. The first fixing body of the first fixing component of this utility model is in the shape of a straight tube or a curved tube to adapt to different working angles and increase the application scenarios of the product.

[0023] 5. The air pipe connector assembly of this embodiment can effectively increase the connection stability and sealing between the air nozzle and the air pipe, thereby improving the quality of the product. Attached Figure Description

[0024] Figure 1This is a structural schematic diagram of the first type of plug device of this utility model.

[0025] Figure 2 This is a cross-sectional view of the first type of plug device of this utility model.

[0026] Figure 3 This is an exploded view of the first type of plug device of this utility model.

[0027] Figure 4 This is a schematic diagram of the main body of the endotracheal connector of this utility model.

[0028] Figure 5 This is a schematic diagram of the structure of the second type of plug device of this utility model.

[0029] Figure 6 This is a structural schematic diagram of the third type of plug device of this utility model.

[0030] Figure 7 This is an exploded view of the third type of plug device of this utility model.

[0031] Figure 8 This is a structural schematic diagram of the second type of second fixing member of this utility model.

[0032] The meaning of the labels in the diagram:

[0033] 1. Plug body; 2. Sealing airbag; 3. Inflation mechanism; 4. Air pipe connector assembly; 5. Hose assembly;

[0034] Airbag support tube 11; First abutment part 111; Second abutment part 112; First external thread part 113; Second external thread part 114; Irregular tool hole 115; First fastener 12; Main connector part 121; First fixing body 122; First internal thread part 123; First external fixing part 124; Second fixing body 125; Hose mounting part 126; Second guide part 1261; Buckle part 1262; External thread mounting part 1263; Second internal thread part 127; Second external fixing part 128; First guide part 129; Second fastener 13; First gasket 14; Second gasket 15; Threaded connector cap 16;

[0035] Air nozzle 21; First mounting end 22; Second mounting end 23; Airbag peripheral wall 24;

[0036] 31. Trachea; 32. Manual airbag; 33. Deflation valve;

[0037] 41. Air tube connector body; 411. First threaded part; 412. First insertion part; 413. Second threaded part; 414. Second insertion part; 415. Reverse thread; 42. Air nozzle connector cap; 43. Air tube connector cap.

[0038] Hose 51; First hose fixing cap 52; Second hose fixing cap 53; Hose connector 54. Detailed Implementation

[0039] The present invention will be further described below with reference to specific embodiments:

[0040] Example 1:

[0041] A drain cleaner consists of a main body and a plug. The drain cleaner's main body has a plug connected to its outlet. The plug is used to seal the pipe (usually a sewer pipe or toilet pipe) and deliver the high-pressure gas released by the drain cleaner into the pipe to achieve high-pressure unblocking.

[0042] like Figure 1 , 2 As shown in Figure 3, the plugging device includes a plug body 1, a sealing airbag 2, an inflation mechanism 3, and a pipe joint assembly 4.

[0043] The plug body 1 has a through gas channel inside, which connects to the air outlet of the drain cleaner body for delivering high-pressure gas. A sealing airbag 2 is fitted onto the outside of the plug body 1, forming a sealed cavity with it. An air nozzle 21, which connects to the sealed cavity, is integrally formed on the sealing airbag 2. The air nozzle 21 is tubular and connected to an inflation mechanism 3 via an air pipe connector assembly 4. The inflation mechanism 3 inflates the sealed cavity and causes the sealing airbag 2 to expand, sealing the pipe. The inflation mechanism 3 can be manual or electric (e.g., an air pump). In this embodiment, the inflation mechanism 3 is manual, mainly comprising a manual airbag 32, a deflation valve 33, and an air pipe 31 connected in sequence. The air pipe 31 is connected to the air nozzle 21 via the air pipe connector assembly 4.

[0044] In this embodiment, the sealing airbag 2 has a first mounting end 22, a second mounting end 23, and an airbag peripheral wall portion 24 located between the two. The first mounting end 22 and the second mounting end 23 are opposite end faces of the sealing airbag 2, each with a mounting hole. The air nozzle 21 is located on the first mounting end 22, which is located at the air inlet end of the plug body 1, and the second mounting end 23 is located at the air outlet end of the plug body 1. The diameter of the first mounting end 22 is larger than the diameter of the second mounting end 23. The outer contour of the airbag peripheral wall portion 24 is arc-shaped, so that the sealing airbag 2 forms a shape that is small at one end and large at the other end, which is convenient for insertion into the pipe. At the same time, the air nozzle 21 and the air pipe connector assembly 4 will not interfere with the inner wall of the pipe.

[0045] The first mounting end 22, the second mounting end 23, the airbag peripheral wall 24, and the air nozzle 21 are all integrally made of elastic material, preferably rubber.

[0046] In this embodiment, the sealing airbag 2 is directly connected to the air pipe connector assembly 4 and the inflation mechanism 3 through an integrally formed air nozzle 21. Compared with the traditional structure that requires drilling holes in the plug body 1 and the sealing airbag 2 and installing metal connectors, it can prevent leakage problems caused by drilling in the sealing airbag 2 and improve the sealing performance of the product. At the same time, it saves the labor and time costs required for drilling, optimizes the assembly process, and simplifies the installation process.

[0047] In this embodiment, the plug body 1 includes an airbag support tube 11, a first fixing member 12, and a second fixing member 13.

[0048] The airbag support tube 11 is a hollow straight tube that passes between the mounting holes of the first mounting end 22 and the second mounting end 23 of the sealing airbag 2. It has a first abutting part 111 for abutting against the inner wall of the first mounting end 22 and a second abutting part 112 for abutting against the inner wall of the second mounting end 23. The first abutting part 111 and the second abutting part 112 are disc-shaped, and the outer diameter of the first abutting part 111 is larger than the outer shape of the second abutting part 112, so as to adapt to the end shape of the sealing airbag 2.

[0049] The first fixing member 12 is installed on the air inlet end of the airbag support tube 11 and presses the first mounting end 22 onto the first abutment part 111 to achieve a seal of the mounting hole of the first mounting end 22, which helps to ensure the airtightness of the sealing cavity.

[0050] Specifically, the air inlet end of the airbag support tube 11 is provided with a first external thread 113, and the first fixing member 12 is provided with a first internal thread 123 adapted to the first external thread 113. The first fixing member 12 is threadedly connected to the first external thread 113. Preferably, an annular first gasket 14 is provided between the first fixing member 12 and the first mounting end 22. The surface of the first gasket 14 facing the first mounting end 22 is provided with several protrusions to increase the sealing effect.

[0051] The second fastener 13 is a nut, which is installed on the air outlet end of the airbag support tube 11, and presses the second mounting end 23 onto the second abutment part 112 to achieve a seal on the mounting hole of the second mounting end 23.

[0052] Specifically, the air outlet end of the airbag support tube 11 is provided with a second external thread 114, and the second fixing member 13 is threadedly connected to the second external thread 114. Preferably, a second gasket 15 is provided between the second fixing member 13 and the second mounting end 23 to increase the sealing effect.

[0053] To facilitate the threaded connection between the first fixing member 12 and the second fixing member 13, such as Figure 3As shown, a shaped tool hole 115 is provided at the end of the airbag support tube 11 for installing a wrench or other fixing tool. Preferably, the shaped tool hole 115 is a polygonal hole, such as a hexagonal hole, and is located at the air outlet end of the airbag support tube 11; the outer wall of the second fixing member 13 is hexagonal, and the two can be fastened together by the corresponding wrench.

[0054] Preferably, the air inlet end of the first fixing member 12 or the airbag support tube 11 has a main connector 121 for connecting to the main body of the drain cleaner.

[0055] In this embodiment, the first fixing member 12 has a main connector portion 121 for connecting the main body of the drain cleaner. Specifically, the first fixing member 12 has a first fixing body 122, which is in the shape of a straight tube. One end of the first fixing body 122 is formed with the main connector portion 121, and the other end is provided with a first internal thread portion 123 and a first external fixing portion 124 for abutting against the first mounting end 22. A gas channel is formed between the first fixing member 12 and the airbag support tube 11.

[0056] The main connector 121 generally has three shapes: a spherical connection structure, a threaded connection structure, and a snap-fit ​​connection structure. In this embodiment, the main connector 121 is a spherical connection structure. The main connector 121 has a spherical groove inside and an external thread on the outside, and a threaded connector cap 16 is installed. Wrench portions are provided on both sides of the threaded connector cap 16 for easy manual rotation. Correspondingly, the air outlet end of the drain cleaner body is spherical, installed in the spherical groove, and fixed by rotating the threaded connector cap 16.

[0057] Preferably, the outer wall of the first external fixing part 124 is provided with several grooves to increase friction, and several reinforcing ribs are provided at the connection between the first external fixing part 124 and the first fixing body 122 to increase the strength of the first external fixing part 124. At the same time, it is also convenient to install the installation tool to achieve the fastening of the first fixing member 12.

[0058] In this embodiment, the air nozzle 21 is located outside the first fixing member 12 and the first gasket 14, that is, the outer diameter of the first mounting end 22 is larger than the outer diameter of the first outer fixing part 124. The air nozzle 21 is provided on the outer periphery of the first mounting end 22. The air nozzle 21 is located outside the first outer fixing part 124 and is connected to the air pipe connector assembly 4. This structure is relatively easy to install.

[0059] In other embodiments, both the first fixing member 12 and the first gasket 14 are provided with a clearance portion, which is an arc-shaped notch or clearance hole adapted to the shape of the air nozzle 21. After the air nozzle 21 passes through the clearance portion, it is connected to the air pipe connector assembly 4.

[0060] The tracheal connector assembly 4 of this embodiment has a tracheal connector body 41, an air nozzle connector cap 42 and an air nozzle connector cap 42.

[0061] like Figure 4 As shown, the air tube connector body 41 has a first threaded portion 411 and a first insertion portion 412 for inserting into the air nozzle 21 on one side, and a second threaded portion 413 and a second insertion portion 414 for inserting into the air tube 31 on the other side. An air passage is provided between the first insertion portion 412, the first threaded portion 411, the second threaded portion 413, and the second insertion portion 414. The air nozzle connector cap 42 is fitted over the air nozzle 21 and fixed on the first threaded portion 411 to lock the air nozzle 21; the air tube connector cap 43 is fitted over the air tube 31 and fixed on the second threaded portion 413 to lock the air tube 31.

[0062] In this embodiment, the first insertion portion 412 and the second insertion portion 414 are symmetrically arranged, as are the first threaded portion 411 and the second threaded portion 413. Simultaneously, the main body of the air pipe connector body 41 has a larger outer diameter than either the first threaded portion 411 or the second threaded portion 413, and the outer diameter of either the first threaded portion 411 or the second threaded portion 413 is larger than the outer diameter of either the first insertion portion 412 or the second insertion portion 414. The outer diameter of the first insertion portion 412 is adapted to the inner diameter of the air nozzle 21; when both are installed, the end face of the first threaded portion 411 abuts against the end face of the air nozzle 21. The outer diameter of the second insertion portion 414 is adapted to the inner diameter of the air pipe 31; when both are installed, the end face of the second threaded portion 413 abuts against the end face of the air pipe 31.

[0063] Preferably, the outer sides of the first insertion part 412 and the second insertion part 414 are provided with a buckle 415, which, after cooperating with the air nozzle connector cap 42 or the inner wall slope of the air nozzle connector cap 42, can better press the air nozzle 211 or the air tube 3 and prevent the air nozzle 211 or the air tube 3 from falling off.

[0064] The air pipe connector assembly 4 in this embodiment can effectively increase the connection stability and sealing between the air nozzle 21 and the air pipe 31, thereby improving the quality of the product.

[0065] Example 2:

[0066] This embodiment is basically the same as Embodiment 1, except that:

[0067] like Figure 5 As shown, the first fixing body 122 of the first fixing member 12 is in the shape of a bent tube to accommodate different working angles.

[0068] Example 3:

[0069] This embodiment is basically the same as Embodiment 1, except that:

[0070] like Figure 6 , 7 As shown in Figure 8, the first fixing member 12 has a second fixing body 125. One end of the second fixing body 125 is formed with a hose mounting part 126, and the other end is provided with a second internal thread part 127 and a second external fixing part 128 for abutting against the first mounting end 22. The second external fixing part 128 is disc-shaped. An annular first guide part 129 is also provided on the inner side of the second internal thread part 127. A gap is formed between the first guide part 129 and the second internal thread part 127 for the air inlet end of the airbag support tube 11 to be installed.

[0071] The air inlet end of the airbag support tube 11 is provided with a first external thread 113 that is adapted to the second internal thread 127. The first fixing member 12 is fixed on the first external thread 113 through the second internal thread 127. At this time, the inner wall of the air inlet end of the airbag support tube 11 abuts against the outer side of the first guide 129.

[0072] The plugging device also includes a hose assembly 5, which comprises a hose 51, a first hose fixing cap 52, a second hose fixing cap 53, and a hose connector 54. One end of the hose 51 is connected to the drain cleaner body via the first hose fixing cap 52 and the hose connector 54, and the other end of the hose 51 is connected to the hose mounting part 126 via the second hose fixing cap 53. Meanwhile, the inner cavities of the hose connector 54, the hose 51, the first fixing member 12, and the airbag support tube 11 are interconnected.

[0073] Specifically, the hose mounting part 126 includes a second guide part 1261, a snap-fit ​​part 1262 distributed around the second guide part 1261, and an external thread mounting part 1263. The inner cavities of the second guide part 1261 and the first guide part 129 are interconnected. One end of the hose 51 is fitted with a second hose fixing cap 53. When inserted into the gap between the snap-fit ​​part 1262 and the second guide part 1261, the second hose fixing cap 53 is rotatably fixed with the external thread mounting part 1263, and can press the snap-fit ​​part 1262 against the end of the hose 51 to achieve reliable fixation.

[0074] The inner end structure of the hose connector 54 is the same as that of the hose mounting part 126, and is used to connect the hose 51 through the first hose fixing cap 52; its outer end structure is the same as that of the main connector part 121, and is used to connect the air outlet of the drain cleaner body.

[0075] Preferably, a spring can also be provided inside the hose 51 to increase the hose's reset capability.

[0076] When the drain cleaner is equipped with the plug device of this embodiment, the plug device has a certain deformation capability, which can better adapt to the bending of the pipe, especially the toilet pipe.

[0077] Example 4:

[0078] This embodiment is basically the same as Embodiment 1, except that:

[0079] The air inlet end of the airbag support tube 11 also has a main connector 121 for connecting to the main body of the drain cleaner. The main connector 121 is integrally formed or separately disposed on the airbag support tube 11. For example, the main connector 121 is an internal threaded hole provided at the air inlet end of the airbag support tube 11, and the air outlet end of the drain cleaner body is provided with a corresponding external thread, and the two are threadedly fixed. Alternatively, the main connector 121 is a part of the first external threaded part 113, and the air outlet end of the drain cleaner body is provided with a corresponding internal threaded hole, and the two are threadedly fixed.

[0080] At this time, the first fastener 12 is equivalent to a nut, which is set on the first external thread portion 113.

[0081] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A plug device for a drain cleaner, characterized in that, include: The plug body (1) has a through gas channel inside; A sealing airbag (2) is fitted onto the plug body (1), forming a sealing cavity between them; and An inflation mechanism (3) is used to inflate the sealed cavity and cause the sealed airbag (2) to expand; The sealing airbag (2) has an integrally formed air nozzle (21) that communicates with the sealing cavity. The air nozzle (21) is connected to the inflation mechanism (3) through the air pipe connector assembly (4).

2. The plug device for a drain cleaner according to claim 1, characterized in that, in, The sealing airbag (2) has a first mounting end (22), a second mounting end (23), and an airbag peripheral wall portion (24) located between the two; The plug body (1) contains: An airbag support tube (11) is hollow inside and passes between the first mounting end (22) and the second mounting end (23), and has a first abutment portion (111) for abutting against the inner wall of the first mounting end (22); and The first fixing member (12) is installed on the air inlet end of the airbag support tube (11) and presses the first mounting end (22) onto the first abutment part (111).

3. The plug device for a drain cleaner according to claim 2, characterized in that, in, The air nozzle (21) is located on the first mounting end (22); The air inlet end of the first fixing member (12) or the airbag support tube (11) has a main connector (121) for connecting to the body of the drain cleaner.

4. A plug device for a drain cleaner according to claim 3, characterized in that, in, The air nozzle (21) is located on the outside of the first fixing member (12). Alternatively, the first fixing member (12) is provided with a clearance part, and the air nozzle (21) passes through the clearance part and connects to the air pipe connector assembly (4).

5. A plug device for a drain cleaner according to claim 4, characterized in that, in, The first fixing member (12) has a first fixing body (122), one end of which is formed with the main connector (121), and the other end is provided with a first internal thread (123) and a first external fixing part (124) for abutting against the first mounting end (22); The air inlet end of the airbag support tube (11) is provided with a first external thread (113) that is adapted to the first internal thread (123); The gas channel is formed between the first fixing member (12) and the airbag support tube (11).

6. A plug device for a drain cleaner according to claim 2, characterized in that, in, The first fixing member (12) has a second fixing body (125), one end of which is formed with a hose mounting part (126), and the other end is provided with a second internal thread part (127) and a second external fixing part (128) for abutting against the first mounting end (22); The air inlet end of the airbag support tube (11) is provided with a first external thread (113) that is adapted to the second internal thread (127); The plugging device also includes a hose (51), a first hose fixing cap (52), a second hose fixing cap (53), and a hose connector (54). One end of the hose (51) is connected to the drain cleaner body through the first hose fixing cap (52) and the hose connector (54), and the other end of the hose (51) is connected to the hose mounting part (126) through the second hose fixing cap (53).

7. A plug device for a drain cleaner according to claim 2, characterized in that, in, The airbag support tube (11) also has a second abutment (112) for abutting against the inner wall of the second mounting end (23); The plug body (1) also includes a second fixing member (13), which is installed at the air outlet end of the airbag support tube (11) and presses the second mounting end (23) onto the second abutment part (112); Or / and, a second gasket (15) is provided between the second fastener (13) and the second mounting end (23); Or / and, a first gasket (14) is provided between the first fastener (12) and the first mounting end (22).

8. A plug device for a drain cleaner according to any one of claims 1-7, characterized in that, in, The endotracheal connector assembly (4) has: The air pipe connector body (41) has a first threaded portion (411) and a first insertion portion (412) for inserting into the air nozzle (21) on one side, and a second threaded portion (413) and a second insertion portion (414) for inserting into the air pipe (31) of the inflation mechanism (3) on the other side. An air passage is provided between the first insertion portion (412), the first threaded portion (411), the second threaded portion (413), and the second insertion portion (414). A valve connector cap (42) is fitted over the valve (21) and fixed to the first threaded portion (411) for locking the valve (21); and The tracheal connector cap (43) is fitted over the tracheal tube (31) and fixed on the second threaded part (413) to lock the tracheal tube (31).

9. A plug device for a drain cleaner according to claim 8, characterized in that, in, The first insertion part (412) and the second insertion part (414) are provided with a buckle (415) on their outer sides.

10. A drain cleaner, characterized in that, Includes the main body of the drain cleaner and the plugging device. The plugging device is the plugging device for a drain cleaner as described in any one of claims 1-9.

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