CN114323456A - Portable three-way pipe joint air tightness detection equipment - Google Patents

Abstract

The invention relates to the field of air tightness detection, in particular to portable three-way pipe joint air tightness detection equipment which comprises a detection base, wherein a concave extension plate is fixedly arranged on the upper end surface of the detection base, a clamping mechanism is arranged on the upper end surface of the detection base in the extension plate, a slidable extension sleeve is sleeved outside the extension plate, an upper base is fixedly arranged on the upper end surface of the extension sleeve, a holding pipe is fixedly arranged at the lower end of the detection base, a main ventilation hose is fixedly connected in the holding pipe, one end of the main ventilation hose, facing away from the holding pipe, is connected with an inflation motor, and one side of the detection base is provided with a branch pipe sealing rotation groove, so that the equipment can utilize the extension part and the inflation part to clamp and seal three-way pipes with different lengths, and can adapt to branch pipes with different angles, thereby improving the application range, the sealing performance during detection is improved.

Description

Portable three-way pipe joint air tightness detection equipment

Technical Field

The invention belongs to the field of air tightness detection, and particularly relates to portable three-way pipe joint air tightness detection equipment.

Background

The three-way pipe is formed by welding two pipelines at an angle, in order to ensure the sealing performance of the welding seam of the three-way pipe, the sealing performance of the welding seam of the three-way pipe needs to be detected after welding, when the air tightness is detected, two of the openings need to be blocked, gas is introduced from the other opening, then the welded three-way pipe is placed into water, whether bubbles emerge from the welding position is observed, and if no bubbles emerge, the welding quality is good and the sealing performance is good; if bubbles are generated at the welding seam, the quality of the welding seam of the tee pipe fitting is poor, the sealing performance is insufficient, but the following problems exist:

firstly, air tightness detection equipment is often large and inconvenient to carry, and cannot be used in occasions such as construction sites where a three-way pipe needs to be welded temporarily;

secondly, because the three-way pipe needs to adjust different branch pipe angles according to actual conditions, the conventional three-way pipe air tightness detection equipment cannot be suitable, and the air tightness detection equipment capable of adjusting the angles needs to be designed urgently.

Therefore this scheme has designed one kind and can utilize the extension part and aerify the part and realize carrying out centre gripping and sealed to the three-way pipe of different length, can adapt to the branch pipe of different angles simultaneously to improve application scope, the portable three-way pipe joint gas tightness check out test set of leakproofness is in order to solve above-mentioned problem when improving the detection.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides portable three-way pipe joint air tightness detection equipment which can clamp and seal three-way pipes with different lengths by using a stretching part and an inflating part and can adapt to branch pipes with different angles, so that the application range is improved, and the sealing performance during detection is improved.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a portable three-way pipe joint gas tightness check out test set, includes and detects the base, it has set firmly the extension board of "concave" type to detect the base up end and is in be provided with fixture in the extension board, the extension board overcoat is equipped with slidable and extends the cover, it has set firmly the upper base to extend the upper end face, it has set firmly the pipe of gripping to detect the base lower extreme, grip intraductal fixedly connected with main hose of ventilating, main hose of ventilating is kept away from and grips pipe one end and is connected with the gas filled motor, it has seted up the sealed rotation groove of branch pipe to detect base one side.

Preferably, detect base up end four sides and have set firmly a fixture respectively, including the grip slipper, four the passageway has been seted up respectively to one side in the middle of the grip slipper orientation, the base air flue has been seted up at the middle part in the detection base, the base air flue has seted up a centre gripping branch air flue respectively towards four grip slipper sides, the base air flue pass through the centre gripping divide the air flue with the grip slipper intercommunication, four one side is provided with a centre gripping arc respectively on detecting the base surface in the middle of the grip slipper orientation, every the centre gripping arc respectively with the homonymy a centre gripping extension tube of fixedly connected with between the grip slipper, four the centre gripping arc is close to one side of each other and has set firmly the centre gripping mantle respectively and be used for adapting to different surfaces.

Preferably, base air flue top has set firmly inflation expansion mechanism detecting the base surface, including being responsible for the grip slipper, be responsible for the grip slipper up end and have set firmly and be responsible for the gasbag seat, be responsible for gasbag seat upper end and seted up the ring channel, the expansible gasbag of being responsible for of fixedly connected with in the ring channel, be responsible for grip slipper middle part outside interval has seted up four and is responsible for the centre gripping arc, every be responsible for the extension board air flue, every be responsible for extension board air flue and be provided with one respectively on detecting the base surface and be responsible for the centre gripping arc, every be responsible for fixedly connected with between the grip slipper respectively and be responsible for the extension hose and pass through be responsible for the extension hose with be responsible for extension board air flue intercommunication and realize aerifing and removing.

Preferably, the base air flue is in towards extension board opening one side the sealed branch air flue of having seted up branch pipe below of centre gripping, the sealed anti-skidding outsider of slidable branch pipe that divides is provided with in the branch pipe end, the sealed anti-skidding outsider of branch pipe is kept away from base air flue one end fixedly connected with branch pipe sealed trachea towards, the sealed trachea of branch pipe is kept away from sealed anti-skidding outsider of branch pipe one side and is stretched out outside the extension board, the sealed trachea of branch pipe is stretched out the extension board outer pot head and is equipped with the sealed air flue connector of branch pipe, the sealed air flue connector of branch pipe is kept away from base air flue one side and is provided with the sealed extension board of rotatable branch pipe in the sealed rotation groove of branch pipe, the sealed extension board lower extreme of branch pipe has set firmly the sealed pivot of branch pipe, the sealed pivot of branch pipe is rotated with the detection base and is connected.

Preferably, a branch pipe sealing air passage is formed in the branch pipe sealing and stretching plate and is communicated with a branch pipe sealing air pipe, a branch pipe sealing and stretching sleeve is slidably sleeved on the outer side of the upper end of the branch pipe sealing and stretching plate, a sealing sleeve is arranged in the branch pipe sealing and stretching sleeve at the joint of the branch pipe sealing and stretching sleeve and the branch pipe sealing and stretching plate to avoid liquid leakage, and a branch pipe sealing hose is fixedly arranged on the upper end face of the branch pipe sealing and stretching sleeve, so that the branch pipe sealing and stretching plate can adapt to pipe orifices with different angles through stretching and bending.

Preferably, the branch pipe sealing hose upper end has set firmly the branch pipe and has detected the headstock, the branch pipe detects first seat inner wall both sides and is provided with aerifys expanding mechanism, branch pipe detects first seat upper end and has set firmly the branch pipe and detects the head, the branch pipe detects the head and the branch pipe detects the first seat junction and has seted up the baffle spout, be provided with slidable gas baffle in the baffle spout, gas baffle has seted up the baffle air flue in, and the baffle air flue link up in gas baffle middle part one side down, the baffle air flue can communicate with the baffle spout.

Preferably, the inflation expanding mechanism is provided with an inflation sliding block chute on the inner wall of the branch pipe detection head seat, the inflation sliding block chute is provided with an I-shaped inflation sliding block in a sliding manner, the inner wall of the inflation sliding block chute at the sunken positions at two sides of the inflation sliding block is respectively and fixedly provided with an inflation baffle, each inflation baffle is fixedly connected with a branch pipe sealing spring between the outward direction and the inflation sliding block so that the inflation sliding block can reset, the inflation sliding block is provided with an inclined plane towards the upper part of the inner part of the branch pipe detection head seat, a chute is arranged in the branch pipe detection head seat above the inclined plane, a top block is arranged in the chute in a sliding manner, the upper end surface of the top block and the chute are fixedly connected with a top block spring, the top block is fixedly connected with the gas baffle, an expandable branch pipe sealing bag is fixedly arranged outside the branch pipe detection head seat, and the upper side and the lower side of the inflation sliding block are respectively provided with a branch pipe sealing bag inflation channel, the branch pipe sealing bag air charging passage is communicated with the branch pipe sealing bag to realize air circulation, the branch pipe sealing bag air charging passage is blocked by the air charging sliding block in a normal state, and the branch pipe sealing bag air charging passage can be opened after the air charging sliding block moves.

Preferably, the base air flue is kept away from sealed rotation groove one side of branch pipe and has been seted up in centre gripping branch air flue below to extend and divide the air flue, extend and divide air flue and extension board intercommunication, set up in the extension board and extend the board air flue and with the last base intercommunication of top, set up in the last base and connect the air flue, and the terminal surface is provided with four fixture and the middle part is provided with one with detection base symmetry under the last base and aerifys expansion mechanism.

Advantageous effects

1. The device can adjust the detection head after clamping the three-way pipe through a rotatable mechanism arranged on one side of the base so as to adapt to three-way pipe branches with different angles, thereby improving the application range;

2. the design of equipment itself is portable, can carry at any time and be convenient for detect the use after the temporary welding in the building site, detects in the less inconvenient removal department in water source and environment that lacks and carries out the gas tightness.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic side view of the present invention;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 5 is an enlarged view of FIG. 4 at D;

in the figure: the device comprises a detection base 10, an extension plate 11, an extension sleeve 12, an upper base 13, a holding pipe 14, a main ventilation hose 15, an inflation motor 16, a branch pipe sealing rotating groove 17, a branch pipe sealing rotating shaft 18, a branch pipe sealing extension plate 19, a branch pipe sealing air passage connector 20, a branch pipe sealing air passage 21, a branch pipe sealing extension sleeve 22, a sealing sleeve 23, a branch pipe sealing hose 24, a branch pipe detection head 25, a gas baffle 26, a baffle air passage 27, a baffle sliding groove 28, a detection head air passage 29, an inflation baffle 30, an inflation sliding block 31, a branch pipe sealing bag 32, a branch pipe sealing spring 33, a branch pipe sealing bag inflation air passage 34, a top block 35, a top block spring 36, a base air passage 37, an extension air dividing passage 38, an extension plate air passage 39, an upper base connecting air passage 40, a clamping seat 41, a clamping extension pipe 42, a clamping arc-shaped plate 43, a clamping soft sleeve 44, a clamping air passage 45, a main pipe clamping seat 46, a main pipe extension plate air passage 47, A main pipe extension hose 48, a branch pipe sealing air distribution passage 49, a branch pipe sealing anti-slip block 50, a branch pipe sealing air pipe 51, a main pipe clamping arc-shaped plate 52, a main pipe air bag seat 53, a main pipe air bag 54, a branch pipe detection head seat 55 and an inflation slide block chute 56.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

In the description of the present invention, it should be noted that the terms "inside", "below", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally place when used, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Combine attached figure 1, attached figure 4, a portable tee pipe coupling gas tightness check out test set, including detecting base 10, it has set firmly extension board 11 of "concave" type to detect the base 10 up end, it is provided with fixture in extension board 11 to detect the base 10 up end, it is equipped with slidable extension cover 12 to extend 11 overcoat of extension board, it has set firmly base 13 to extend 12 up end, it has set firmly pipe 14 to detect the base 10 lower extreme, fixedly connected with main hose 15 of ventilating in the pipe 14 grips, main hose 15 of ventilating is towards keeping away from and grips pipe 14 one end and be connected with gas filled motor 16, it has seted up the sealed rotating groove 17 of branch pipe to detect base 10 one side.

Further combine the attached drawing 4, it has set firmly a fixture respectively to detect base 10 up end four sides, including grip slipper 41, a passageway has been seted up respectively to one side in the middle of four grip slipper 41 orientation, base air flue 37 has been seted up to the middle part in detecting base 10, base air flue 37 has been seted up a centre gripping respectively towards four grip slipper 41 one sides and has been divided air flue 45, base air flue 37 divides air flue 45 and grip slipper 41 intercommunication through the centre gripping, one side is provided with a centre gripping arc 43 respectively on detecting base 10 surface in the middle of four grip slipper 41 orientation, every centre gripping arc 43 respectively with the homonymy between the grip slipper 41 a centre gripping extension pipe 42 of fixedly connected with, four centre gripping arc 43 are close to one side of each other and have set firmly centre gripping mantle 44 respectively and be used for adapting to different surfaces.

Further combine fig. 4, the inflation expansion mechanism is fixed on detecting base 10 surface above base air flue 37, including being responsible for grip slipper 46, be responsible for grip slipper 46 up end and have fixed being responsible for gasbag seat 53, be responsible for gasbag seat 53 upper end and seted up the ring channel, the expansible gasbag 54 of being responsible for of fixedly connected with in the ring channel, be responsible for grip slipper 46 middle part outside interval 90 and seted up four and be responsible for centre gripping arc 52, every is responsible for extension board air flue 47 and is provided with one outward and be responsible for centre gripping arc 52 on detecting base 10 surface respectively, every is responsible for centre gripping arc 52 respectively with be responsible for fixedly connected with between the grip slipper 46 be responsible for extension hose 48 and realize aerifing and removing through being responsible for extension hose 48 and being responsible for extension board air flue 47 intercommunication.

Further combine figure 4, base air flue 37 has seted up the sealed branch air flue 49 of branch pipe towards 11 opening one sides of extension board in centre gripping branch air flue 45 below, the sealed branch air flue 49 end of branch pipe is provided with the sealed skid proof piece 50 of slidable branch pipe, the sealed skid proof piece 50 of branch pipe is towards keeping away from the sealed trachea 51 of base air flue 37 one end fixedly connected with branch pipe, the sealed trachea 51 of branch pipe is towards keeping away from the sealed skid proof piece 50 one side of branch pipe and is stretched out outside extension board 11, the sealed trachea 51 of branch pipe is stretched out and is stretched out the outer pot head of 11 and is equipped with the sealed air flue connector 20 of branch pipe, the sealed airway connector 20 of branch pipe is towards keeping away from base air flue 37 one side and is provided with the sealed extension board 19 of rotatable branch pipe in the sealed rotation groove 17 of branch pipe, the sealed pivot 18 that stretches out of branch pipe has set firmly to the sealed the extension board 19 lower extreme, the sealed pivot 18 of branch pipe rotates with detection base 10 and is connected.

Further, with reference to fig. 4, a branch sealing air passage 21 is formed in the branch sealing and extending plate 19 and is communicated with a branch sealing air pipe 51, a branch sealing and extending sleeve 22 is slidably arranged on the outer side of the upper end of the branch sealing and extending plate 19, a sealing sleeve 23 is arranged in the branch sealing and extending sleeve 22 at the joint of the branch sealing and extending sleeve 22 and the branch sealing and extending plate 19 to prevent liquid leakage, and a branch sealing hose 24 is fixedly arranged on the upper end face of the branch sealing and extending sleeve 22, so that the branch sealing and extending plate can adapt to pipe orifices with different angles through stretching and bending.

Further combine attached drawing 4, attached drawing 5, branch pipe sealing hose 24 upper end has set firmly branch pipe and has detected headstock 55, branch pipe detects headstock 55 inner wall both sides and is provided with aerifys expanding mechanism, branch pipe detects headstock 55 upper end and has set firmly branch pipe and detects head 25, branch pipe detects head 25 and branch pipe and detects the headstock 55 junction and has seted up baffle spout 28, be provided with slidable gas baffle 26 in the baffle spout 28, gas baffle 26 is seted up baffle air flue 27, and baffle air flue 27 link up in gas baffle 26 middle part one side down, baffle air flue 27 can communicate with baffle spout 28.

Further, with reference to fig. 5, the inflation expanding mechanism is provided with an inflation slider chute 56 on the inner wall of the branch pipe detection head seat 55, an i-shaped inflation slider 31 is slidably disposed in the inflation slider chute 56, an inflation baffle 30 is respectively and fixedly disposed on the inner wall of the inflation slider chute 56 at the recessed positions on both sides of the inflation slider 31, a branch pipe sealing spring 33 is fixedly connected between each inflation baffle 30 and the inflation slider 31 towards the outside to enable the inflation slider 31 to reset, an inclined plane is disposed on the inflation slider 31 towards the upper portion of the inside of the branch pipe detection head seat 55, a chute is disposed in the branch pipe detection head seat 55 above the inclined plane, a top block 35 is slidably disposed in the chute, a top block spring 36 is fixedly connected between the upper end surface of the top block 35 and the inside of the chute, the top block 35 and the gas baffle 26 are fixedly connected, an expandable branch pipe sealing bag 32 is fixedly disposed outside the branch pipe detection head seat 55, the upper side and the lower side of the inflating slide block 31 are respectively provided with a branch pipe sealed bag inflating channel 34, the branch pipe sealed bag inflating channel 34 is communicated with the branch pipe sealed bag 32 to realize gas circulation, the branch pipe sealed bag inflating channel 34 is blocked by the inflating slide block 31 in a normal state, and the branch pipe sealed bag inflating channel 34 can be opened after the inflating slide block 31 moves.

Further combine figure 4, base air flue 37 is kept away from the sealed groove 17 that rotates of branch pipe and is seted up in centre gripping branch air flue 45 below and extends and divide air flue 38 towards keeping away from one side, extends and divides air flue 38 and extension board 11 intercommunication, has seted up extension board air flue 39 in the extension board 11 and communicates with the last base 13 of top, has seted up in last base 13 and has connected air flue 40, and goes up base 13 lower extreme face and detection base 10 symmetry and be provided with four fixture and the middle part is provided with an inflation expansion gear.

Principle of operation

Before use, the holding pipe 14 is held, the inflating motor 16 is started to inflate the interior of the equipment through the main ventilating hose 15, after the gas enters the air passage 37 of the base, the gas in the equipment is increased, a user can conveniently pull open the upper base 13, after the upper base 13 is pulled open, one side of the main pipe of the three-way pipe is placed between the upper clamping soft sleeve 44 and the lower clamping soft sleeve 52 which are symmetrical, and the three-way pipe to be detected and welded is placed in the equipment, so that the air tightness detection is carried out;

the inflation motor 16 is turned on to inflate, the air firstly enters the base air passage 37 through the main aeration hose 15, a part of the air enters the main pipe clamping seat 46 through the base air passage 37, the main pipe air bag 54 is inflated to gradually expand, meanwhile, the air in the main pipe clamping seat 46 is inflated to enter the main pipe extension hose 48 through the main pipe extension plate air passage 47 to inflate and extend the main pipe extension hose 48, the main pipe clamping arc-shaped plate 52 connected with the main pipe extension hose 48 is pushed away, and a part of the air enters the clamping extension pipe 42 through the clamping branch air passages 45 at the two sides of the base air passage 37, the clamping extension tube 42 is inflated to extend and thereby push out the clamping arc 43 connected with the clamping extension tube 42, the clamping soft sleeve 44 is arranged on the surface of the clamping arc-shaped plate 43, so that the outer wall of the main pipe of the three-way pipe can be adapted, the two ends of the main pipe of the three-way pipe are better clamped through the matching of the main pipe clamping arc-shaped plate 52 and the clamping arc-shaped plate 43;

when the inflation motor 16 continuously operates to inflate the interior of the equipment, so that sealing clamping is gradually completed, a large amount of gas begins to flow out through the branch pipe sealing gas distribution passage 49 arranged on one side of the base gas passage 37, at the moment, a user breaks the branch pipe sealing extension plate 19 to enable the branch pipe sealing extension plate 19 to rotate around the branch pipe sealing rotating shaft 18, and can stretch the branch pipe sealing extension sleeve 22 and enable the branch pipe detection head 25 to enter a branch pipe of the three-way pipe by utilizing the bendable branch pipe sealing hose 24;

since the gas baffle 26 in the branch pipe detection head 25 normally closes the branch pipe detection head 25, the gas is gathered in the branch pipe detection head seat 55 to increase the gas pressure and push the inflation sliders 31 at the two sides to move, because the inflation slide block 31 moves, the two branch tube sealing bag inflation channels 34 on the upper side and the lower side of the inflation slide block 31 are opened, gas can enter the branch tube sealing bag 32 outside the branch tube detection head seat 55 through the branch tube sealing bag inflation channels 34 to expand the branch tube sealing bag 32, because the branch pipe sealing bag 32 expands, the branch pipe of the three-way pipe can be blocked, when the branch pipe sealing bag 32 is blocked, because the air pressure in the branch pipe sealing bag 32 is larger and the branch pipe sealing spring 33 is connected between the inflating slide block 31 and the inflating baffle 30, therefore, the inflating slide block 31 is gradually reset and closes the branch pipe sealing bag inflating channel 34 to avoid sealing failure caused by gas leakage in the branch pipe sealing bag 32;

after the inflation slide block 31 is reset, the top block 35 above is jacked up, and the gas baffle 26 fixedly connected with the top block 35 is jacked up to enable the baffle air passage 27 to be communicated with the detection head air passage 29 due to the fact that the top block 35 is lifted up, so that gas sprayed out of the inflation motor 16 enters the three-way pipe along the detection head air passage 29 to be subjected to air tightness detection;

if the air tightness reaches the standard, the gas volume of the three-way pipe is fixed, so that the gas continuously sprayed out of the inflating motor 16 can be continuously inflated into the equipment, the gas pressure in the extending gas-distributing passage 38 is increased, the upper base 13 moves slowly and pops up, and if the air tightness does not reach the standard, the upper base 13 cannot move.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (8)

1. The utility model provides a portable tee pipe coupling gas tightness check out test set, is including detecting base (10), its characterized in that, it has set firmly extension board (11) of "concave" type to detect base (10) up end be in be provided with fixture in extension board (11), it is equipped with slidable extension cover (12) to stretch panel (11) overcoat, it has set firmly last base (13) to extend cover (12) up end, it has set firmly pipe (14) to detect base (10) lower extreme, fixedly connected with ventilation main hose (15) in pipe (14) grip, ventilation main hose (15) are kept away from pipe (14) one end and are connected with gas filled motor (16), it has seted up branch pipe seal rotation groove (17) to detect base (10) one side.

2. The portable three-way pipe joint airtightness detection apparatus according to claim 1, wherein four sides of the upper end surface of the detection base (10) are respectively and fixedly provided with a clamping mechanism, each clamping mechanism comprises a clamping seat (41), one side of each of the four clamping seats (41) facing the middle is provided with a channel, the middle part of the interior of the detection base (10) is provided with a base air passage (37), one side of each base air passage (37) facing the four clamping seats (41) is provided with a clamping branch air passage (45), the base air passages (37) are communicated with the clamping seats (41) through the clamping branch air passages (45), one side of each of the four clamping seats (41) facing the middle is provided with a clamping arc-shaped plate (43) on the surface of the detection base (10), and a clamping extension pipe (42) is fixedly connected between each clamping arc-shaped plate (43) and the clamping seat (41) on the same side, and clamping soft sleeves (44) are fixedly arranged on the mutually close sides of the four clamping arc-shaped plates (43) respectively and are used for adapting to different surfaces.

3. The portable three-way pipe joint airtightness detection apparatus according to claim 2, wherein an inflation and expansion mechanism is fixedly arranged above the base air passage (37) on the surface of the detection base (10), and includes a main pipe holder (46), a main pipe air bag seat (53) is fixedly arranged on the upper end surface of the main pipe holder (46), an annular groove is formed in the upper end of the main pipe air bag seat (53), an expandable main pipe air bag (54) is fixedly connected in the annular groove, four main pipe clamping arc plates (52) are arranged at intervals (90) ° outside the middle part of the main pipe holder (46), each main pipe extension plate air passage (47), a main pipe clamping arc plate (52) is respectively arranged on the surface of the detection base (10) outside each main pipe extension plate air passage (47), a main pipe extension hose (48) is fixedly connected between each main pipe clamping arc plate (52) and the main pipe holder (46), and passes through the main pipe extension hose (48) (48) Is communicated with the main pipe extension plate air passage (47) to realize inflation and movement.

4. The portable tee joint airtightness detection apparatus according to claim 2, wherein a branch sealing gas distribution passage (49) is formed below the clamping gas distribution passage (45) on the side of the base gas passage (37) facing the opening of the extension plate (11), a slidable branch sealing anti-slip block (50) is arranged in the end of the branch sealing gas distribution passage (49), a branch sealing anti-slip block (51) is fixedly connected to one end of the branch sealing anti-slip block (50) facing away from the base gas passage (37), the branch sealing gas pipe (51) extends out of the extension plate (11) on the side of the branch sealing anti-slip block (50), a branch sealing gas passage connector (20) is sleeved outside the branch sealing gas distribution plate (51), and a rotatable branch sealing extension plate (17) is arranged in the branch sealing rotation groove (17) on the side of the branch sealing gas passage connector (20) facing away from the base gas passage (37) 19) The lower end of the branch pipe sealing extension plate (19) is fixedly provided with a branch pipe sealing rotating shaft (18), and the branch pipe sealing rotating shaft (18) is rotatably connected with the detection base (10).

5. The portable three-way pipe joint airtightness detection apparatus according to claim 4, wherein a branch pipe sealing air passage (21) is formed in the branch pipe sealing extension plate (19) and is communicated with the branch pipe sealing air pipe (51), a branch pipe sealing extension sleeve (22) is slidably sleeved on the outer side of the upper end of the branch pipe sealing extension plate (19), a sealing sleeve (23) is formed in the branch pipe sealing extension sleeve (22) at the joint of the branch pipe sealing extension plate (19) and the branch pipe sealing extension plate (22) to prevent liquid leakage, and a branch pipe sealing hose (24) is fixedly arranged on the upper end face of the branch pipe sealing extension sleeve (22), so that the apparatus can adapt to pipe orifices with different angles through expansion and bending.

6. The portable three-way pipe joint airtightness detection apparatus according to claim 5, wherein a branch pipe detection head seat (55) is fixedly arranged at the upper end of the branch pipe sealing hose (24), an inflation expansion mechanism is arranged on both sides of the inner wall of the branch pipe detection head seat (55), a branch pipe detection head (25) is fixedly arranged at the upper end of the branch pipe detection head seat (55), a baffle sliding groove (28) is formed at the joint of the branch pipe detection head (25) and the branch pipe detection head seat (55), a slidable gas baffle (26) is arranged in the baffle sliding groove (28), a baffle air passage (27) is formed in the gas baffle (26), the baffle air passage (27) penetrates through the middle of the gas baffle (26) towards the downward side, and the baffle air passage (27) can be communicated with the baffle sliding groove (28).

7. The portable three-way pipe joint airtightness detection device according to claim 6, wherein the inflation expanding mechanism has an inflation slider chute (56) formed in an inner wall of the branch pipe detection head seat (55), the inflation slider chute (56) is slidably provided with an I-shaped inflation slider (31), the inflation slider (31) has an inflation baffle (30) fixedly disposed on a recessed portion at two sides of the inflation slider chute (56), respectively, a branch pipe sealing spring (33) is fixedly connected between each outward facing side of the inflation baffle (30) and the inflation slider (31) to enable the inflation slider (31) to be reset, the inflation slider (31) has an inclined surface facing the upper portion of the inner portion of the branch pipe detection head seat (55), a chute is formed in the branch pipe detection head seat (55) above the inclined surface, and a top block (35) is slidably disposed in the chute, the upper end face of the ejector block (35) is fixedly connected with an ejector block spring (36) in the sliding groove, the ejector block (35) is fixedly connected with the gas baffle plate (26), an expandable branch pipe sealing bag (32) is fixedly arranged outside the branch pipe detection head seat (55), branch pipe sealing bag gas filling channels (34) are respectively formed in the upper side and the lower side of the gas charging sliding block (31), the branch pipe sealing bag gas filling channels (34) are communicated with the branch pipe sealing bag (32) to achieve gas circulation, the branch pipe sealing bag gas filling channels (34) are normally blocked by the gas charging sliding block (31), and the branch pipe sealing bag gas filling channels (34) can be opened after the gas charging sliding block (31) moves.

8. The portable tee pipe joint airtightness detection apparatus according to claim 2, wherein the base air passage (37) is provided with an extension air dividing passage (38) below the clamping air dividing passage (45) towards the side away from the branch pipe sealing rotation groove (17), the extension air dividing passage (38) is communicated with the extension plate (11), the extension plate (11) is provided with an extension plate air passage (39) and is communicated with the upper base (13) above, the upper base (13) is provided with an upper base connection air passage (40), and the lower end face of the upper base (13) and the detection base (10) are symmetrically provided with four clamping mechanisms and the middle part is provided with an inflation mechanism.

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