A pipe device for air conditioning and ventilation

Abstract

The present invention relates to the technical field of ventilation ducts, and discloses a duct device for air conditioning ventilation, comprising a first tube and a second tube, wherein a preset distance is provided between the first tube and the second tube, and a flange is provided on the first tube; a connecting tube arranged in the first tube; glue can enter the inner wall of the hose through the gap between the strip blocks on the hose, and cooperate with the glue on the outer wall of the connecting tube, and the glue can fully adhere to the inner wall, the outer wall and the gap of the strip blocks of the hose, covering the connection between the hose and the connecting tube, and when the glue solidifies after stopping the movement of the second tube, the hose can be connected to the connecting tube more stably, and has good sealing performance. Compared with the sleeve and clamp connection in the prior art, the present application only needs to plug the hose into the connecting tube, and use the moving part to move the position of the second tube, the connection is simple, can save installation time and cost, and has good connection stability, and can also ensure the sealing performance after connection.

Description

Technical Field

[0001] The invention relates to the technical field of ventilation ducts, and in particular to a duct device used for air-conditioning ventilation. Background Art

[0002] In modern buildings, air conditioning systems have become an indispensable part for regulating indoor temperature and air quality. The ventilation duct device in the air conditioning system is one of its core components, responsible for transporting cold / hot air to each room. The ventilation duct is usually composed of hard pipes and soft pipes. Different types of ducts have their own advantages and application scopes.

[0003] The connection between rigid pipe and flexible pipe is a key issue in the design and installation of air conditioning and ventilation duct systems. Traditional connection methods mainly include sleeve connection and clamp connection;

[0004] The sleeve connection uses a specially designed sleeve to connect the hard pipe and the soft pipe. There is a sealing ring inside the sleeve to ensure the sealing of the connection. This method is relatively simple to install. The sleeve connection requires precise alignment of the hard pipe and the soft pipe. If the alignment is not accurate during installation, it is easy to cause loose sealing or unstable connection. In addition, the seal ring needs to be correctly positioned during installation, otherwise it will affect the connection effect.

[0005] The clamp connection uses a metal clamp to fasten the hose to the joint of the hard pipe, and the firmness and sealing of the connection are ensured by adjusting the tightness of the clamp. This method is quick to install and has strong adaptability. The sealing performance of the clamp connection is greatly affected by the clamp's tightening force. If the tightening force is insufficient, air leakage may occur. The clamp's tightening force may loosen during long-term use, especially in a vibrating environment, which can easily lead to loosening of the connection and sealing failure.

[0006] Although the above connection method meets the requirements of connecting hard pipes and soft pipes to a certain extent, there are still some shortcomings in practical applications. In view of the above problems, a new connection technology is urgently needed to simplify the connection process of hard pipes and soft pipes, improve the sealing performance, and reduce the installation time cost of a pipe device for air conditioning and ventilation. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a pipeline device for air conditioning and ventilation that simplifies the connection process between hard pipes and soft pipes, improves sealing performance, and reduces installation time and cost, aiming to alleviate the above problems at least to a certain extent.

[0008] The above technical objectives of the present invention are achieved through the following technical solutions:

[0009] A pipe device for air conditioning and ventilation, comprising a first pipe and a second pipe, wherein a preset distance is set between the first pipe and the second pipe, and a flange is set on the first pipe;

[0010] a connecting pipe disposed in the first pipe;

[0011] A positioning part provided in the second tube, used for positioning the hose when the second tube moves toward the first tube, and allowing the hose to move along with the second tube, wherein a cutting piece is provided on the positioning part;

[0012] a moving part disposed between the second tube and the first tube, used for moving the second tube;

[0013] A glue storage portion provided outside the connecting pipe, for storing glue;

[0014] A plurality of spray pipes provided on the glue storage portion;

[0015] Wherein, the moving part can slide the cutting piece on the positioning part when moving the second tube to a preset position, so as to cut the hose;

[0016] Wherein, the moving part can rotate the glue storage part and release the glue therein into the injection pipe when moving the second pipe.

[0017] Preferably, the moving part includes a shell connected to the outside of the first tube, a swivel is rotatably connected to one side of the shell, a first gear is connected to the swivel, a driving rod is rotatably connected to the shell, a second gear meshing with the first gear is connected to the driving rod, a one-way threaded section is provided on the driving rod, a plug-in rod slidably connected to the first tube is connected to the second tube, and a bracket threadedly connected to the one-way threaded section is connected to the plug-in rod.

[0018] Preferably, the positioning portion includes a push rod rotatably connected to the inner wall of the second tube, a top contact roller is connected to the bottom of the push rod, a first spring is connected between the push rod and the second tube, the push rod is tilted, and the top contact roller is in contact with the connecting tube.

[0019] Preferably, the cutting piece includes a sliding rod slidably connected to the top rod, a cutting blade is connected to the bottom of the sliding rod, the bottom height of the cutting blade is higher than the bottom height of the top contact roller, a second spring is connected between the sliding rod and the top rod, a plug interface is provided on one side of the first tube, the plug-in rod is slidably connected in the plug interface, a baffle is provided on one side of the plug-in rod, a traction rope is connected to one end of the baffle, the traction rope passes through the plug-in rod, the second tube and the top rod and is connected to the sliding rod, and a third spring is connected between the baffle and the plug-in rod.

[0020] Preferably, both ends of the top rod are respectively connected to fixed shafts, the top contact roller is arranged on the fixed shaft, the fixed shaft is connected to a connecting ring which is rotatably connected to the top contact roller, the outer wall of the connecting ring is provided with a plurality of connecting ports, a damping rod is provided in the connecting port, the inner wall of the top contact roller is provided with a damping groove which is adapted to the damping rod, a fourth spring is connected between the damping rod and the connecting port, and one end of the damping rod and the damping groove are semi-spherical.

[0021] Preferably, a plurality of cutting grooves are formed on the outer wall of the connecting tube, and a liquid storage groove connected to the cutting grooves is also formed on the outer wall of the connecting tube.

[0022] Preferably, the glue storage portion includes a storage tube rotatably connected to the connecting tube, a plurality of connecting plates are connected to both sides of the interior of the storage tube, a first opening and a second opening are opened on one side of the storage tube, a first ring body is rotatably connected in the first opening, the first ring body is connected to the connecting tube, a second ring body is rotatably connected in the second opening, the injection pipe is connected to the first ring body and communicated with the storage tube, and a guide plate is connected in the storage tube.

[0023] Preferably, the driving rod is provided with a reciprocating threaded section, the reciprocating threaded section is threadedly connected to a connecting frame, the bottom of the connecting frame is connected to a connecting rod, the connecting rod passes through the second ring body, extends into the storage tube and is connected to a push plate, the push plate is provided with a one-way opening, a frame body is provided in the one-way opening, a baffle plate adapted to the one-way opening is slidably connected to the frame body, and a fifth spring is connected between the baffle plate and the frame body.

[0024] Preferably, the first tube is rotatably connected to a third gear, the storage tube is connected to a fourth gear meshing with the third gear, the connecting frame is connected to a rack meshing with the third gear, and the second tube is provided with an avoidance opening corresponding to the rack.

[0025] Preferably, a connecting shaft is connected to the first tube, the third gear is rotatably connected to the connecting shaft, and a ratchet mechanism is provided between the connecting shaft and the third gear.

[0026] In summary, the present invention mainly has the following beneficial effects:

[0027] The present application only requires plugging the hose into the connecting pipe and using the moving part to move the position of the second pipe. The connection is simple, can save installation time and cost, and has good connection stability, while also ensuring the sealing performance after connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the structure of the first tube and the second tube of the present invention;

[0030] Figure 3 yes Figure 2 A schematic diagram of the enlarged local structure at point A in the middle;

[0031] Figure 4 yes Figure 2 A magnified schematic diagram of the local structure at B in the middle;

[0032] Figure 5 It is a schematic diagram of the rotating ring structure of the present invention;

[0033] Figure 6 It is a schematic diagram of the connecting pipe structure of the present invention;

[0034] Figure 7 It is a schematic diagram of the storage tube structure of the present invention;

[0035] Figure 8 is a schematic cross-sectional view of a storage tube structure of the present invention;

[0036] Fig. 9 It is a schematic diagram of the baffle structure of the present invention;

[0037] Fig.10 It is a schematic diagram of the top rod structure of the present invention;

[0038] Fig.11 It is a schematic diagram of the top contact shaft structure of the present invention.

[0039] Reference numerals:

[0040] 100, first tube; 101, second tube; 102, connecting tube; 103, positioning part; 104, cutting piece; 105, moving part; 106, glue storage part; 107, injection tube;

[0041] 200, housing; 201, rotating ring; 202, first gear; 203, driving rod; 204, second gear; 205, one-way threaded section; 206, plug-in rod; 207, bracket;

[0042] 300, top rod; 301, top contact roller; 302, first spring; 303, slide bar; 304, cutting blade; 305, second spring; 306, plug interface; 307, baffle; 308, traction rope; 309, third spring; 310, fixed shaft; 311, connecting ring; 312, connecting port; 313, damping rod; 314, damping groove; 315, fourth spring; 316, cutting groove; 317, liquid storage tank;

[0043] 400, storage tube; 401, connecting piece; 402, first opening; 403, second opening; 404, first ring body; 405, second ring body; 406, guide piece;

[0044] 500, reciprocating threaded section; 501, connecting frame; 502, connecting rod; 503, push plate; 504, one-way port; 505, frame body; 506, baffle; 507, fifth spring; 508, third gear; 509, fourth gear; 510, rack; 511, avoidance port; 512, connecting shaft; 513, ratchet mechanism. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] refer to Figure 1-Figure 11 , a pipe device for air conditioning and ventilation, comprising a first pipe 100 and a second pipe 101, a preset distance is set between the first pipe 100 and the second pipe 101, and a flange is set on the first pipe 100;

[0047] A connecting pipe 102 disposed in the first pipe 100;

[0048] A positioning portion 103 disposed in the second tube 101 is used to position the hose when the second tube 101 moves toward the first tube 100, and to allow the hose to move with the second tube 101. A cutting piece 104 is disposed on the positioning portion 103;

[0049] The moving part 105 is provided between the second tube 101 and the first tube 100 and is used to move the second tube 101;

[0050] A glue storage portion 106 disposed outside the connecting tube 102 for storing glue;

[0051] A plurality of spray pipes 107 provided on the glue storage portion 106;

[0052] Wherein, the moving part 105 can slide the cutting piece on the positioning part 103 when moving the second tube 101 to a preset position, so as to cut the hose;

[0053] The moving part 105 can rotate the glue storage part 106 and release the glue therein into the injection pipe 107 when the second pipe 101 is moved;

[0054] By setting the first tube 100, when in use, the user can connect the hard pipe in the air conditioning and ventilation duct system to the flange on the first tube 100 by bolts, and then plug the hose in the air conditioning and ventilation duct system into the connecting tube 102, and push the hose to make the outer wall of the hose contact with the positioning part 103. Specifically, the user can use the moving part 105 to move the position of the second tube 101. When the second tube 101 moves, the positioning part 103 can touch the hose to position the hose. When the second tube 101 continues to move, When the second tube 101 and the hose are moved toward the first tube 100, the positioning portion 103 can drive the hose to move toward the first tube 100. At this time, the contact area between the hose and the connecting tube 102 gradually increases. When the moving portion 105 allows the second tube 101 and the hose to move toward the first tube 100, the provided glue storage portion 106 can rotate and release the glue therein to the injection pipe 107. The injection pipe 107 can guide the glue to spray toward the outer wall of the connecting tube 102 and the outer wall of the hose. When the second tube 101 drives the hose to move to the extreme position, the cutting piece 104 slides, and the cutting piece 1 04 is plugged into the hose. At this time, the second tube 101 continues to move. After the hose moves to the extreme position, it is resisted and its movement is restricted. That is, the second tube 101 allows the positioning portion 103 and the cutting piece 104 sliding thereon to move. The cutting piece 104 can be used to cut the hose, and one end of the hose can be cut into multiple strips. The glue can enter the inner wall of the hose through the gaps between the strips on the hose, and cooperate with the glue on the outer wall of the connecting tube 102. The glue can fully adhere to the inner wall, outer wall and gaps between the strips of the hose. The gap covers the connection between the hose and the connecting pipe 102. When the glue solidifies after the second pipe 101 stops moving, the hose can be connected to the connecting pipe 102 more stably and has good sealing performance. Compared with the sleeve and clamp connection in the prior art, the present application only needs to plug the hose into the connecting pipe 102 and use the moving part 105 to move the position of the second pipe 101. The connection is simple, which can save installation time and cost, and has good connection stability. At the same time, it can also ensure the sealing performance after connection.

[0055] As a further solution of the present invention, the moving part 105 includes a shell 200 connected to the outside of the first tube 100, a rotating ring 201 is rotatably connected to one side of the shell 200, a first gear 202 is connected to the rotating ring 201, a driving rod 203 is rotatably connected to the shell 200, a second gear 204 meshing with the first gear 202 is connected to the driving rod 203, a one-way threaded section 205 is provided on the driving rod 203, a plug-in rod 206 slidably connected to the first tube 100 is connected to the second tube 101, and a bracket 207 threadedly connected to the one-way threaded section 205 is connected to the plug-in rod 206;

[0056] By setting the driving rod 203, when in use, the rotating ring 201 can be rotated. The rotation of the rotating ring 201 can rotate the driving rod 203 through the first gear 202 and the second gear 204. The rotation of the driving rod 203 can use the force of the thread to move the bracket 207, so as to achieve the purpose of allowing the bracket 207 to move the second tube 101 through the plug-in rod 206.

[0057] As a further solution of the present invention, the positioning portion 103 includes a push rod 300 rotatably connected to the inner wall of the second tube 101, a top contact roller 301 is connected to the bottom of the push rod 300, a first spring 302 is connected between the push rod 300 and the second tube 101, the push rod 300 is tilted, and the top contact roller 301 contacts the connecting tube 102;

[0058] By setting the push rod 300, the push rod 300 can be subjected to the force of the first spring 302 to allow the top contact roller 301 to contact the connecting tube 102. When the hose is plugged into the connecting tube 102, the wall thickness of the hose can contact the top contact roller 301. With the movement of the hose, the push rod 300 can be tilted, and the first spring 302 can continue to twist and apply potential energy. After the hose is plugged into the connecting tube 102 at a suitable position, the second tube 101 can be moved by rotating the swivel 201. When the second tube 101 moves, because the push rod 300 is tilted, the movement of the second tube 101 can allow the top contact roller 301 at the bottom of the push rod 300 to squeeze the position of the hose. With the subsequent continued movement of the second tube 101, the friction between the top contact roller 301 and the hose can be used to drive the hose to move, thereby achieving the purpose of positioning the hose and driving the hose to move at the same time.

[0059] As a further solution of the present invention, the cutting piece 104 includes a slide bar 303 slidably connected to the top rod 300, a cutting blade 304 is connected to the bottom of the slide bar 303, the bottom height of the cutting blade 304 is higher than the bottom height of the top contact roller 301, a second spring 305 is connected between the slide bar 303 and the top rod 300, a plug-in port 306 is provided on one side of the first tube 100, the plug-in rod 206 is slidably connected in the plug-in port 306, a baffle 307 is provided on one side of the plug-in rod 206, one end of the baffle 307 is connected to a traction rope 308, the traction rope 308 passes through the plug-in rod 206, the second tube 101 and the top rod 300 and is connected to the slide bar 303, and a third spring 309 is connected between the baffle 307 and the plug-in rod 206;

[0060] By setting the third spring 309, the force of the third spring 309 is greater than the second spring 305. The third spring 309 is in a compressed state in the initial state, and the initial state of the second spring 305 is in a stretched state. The traction rope 308 can be pulled to the position of the slide bar 303 by the force of the third spring 309 to ensure that the cutting knife at the bottom of the slide bar 303 does not contact the hose. When the second tube 101 and the plug rod 206 move to the preset position, the blocking piece 307 can contact one end of the plug interface 306. When the second tube 101 and the plug rod 206 continue to move, the plug rod 206 can continue to compress the third spring 309. At this time, the slide bar 303 is no longer restricted and slides due to the force of the second spring 305. The cutting blade 304 can be plugged into the hose. After the second tube 101 continues to move and the hose moves to the limit position on the connecting tube 102, the movement of the hose is restricted, the top contact roller 301 rotates on the hose, and the cutting blade 304 cuts the hose, thereby achieving the purpose of cutting the hose.

[0061] As a further solution of the present invention, both ends of the top rod 300 are respectively connected to a fixed shaft 310, the top contact roller 301 is arranged on the fixed shaft 310, the fixed shaft 310 is connected to a connecting ring 311 rotatably connected to the top contact roller 301, the outer wall of the connecting ring 311 is provided with a plurality of connecting ports 312, a damping rod 313 is arranged in the connecting port 312, a damping groove 314 adapted to the damping rod 313 is arranged on the inner wall of the top contact roller 301, a fourth spring 315 is connected between the damping rod 313 and the connecting port 312, and one end of the damping rod 313 and the damping groove 314 are semi-spherical;

[0062] By setting the damping rod 313, the damping rod 313 can be sleeved with the damping port by the force of the fourth spring 315 and generate a certain friction force, that is, the rotation of the top contact roller 301 is restricted. After the top rod 300 and the top contact roller 301 contact the hose, the top contact roller 301 will not rotate to drive the hose to move. When the hose moves to the extreme position, the movement of the hose generates a large resistance. At this time, the top contact roller 301 generates a rotational force, and the damping groove 314 can contact the damping roller to shrink in the connecting port 312. The top contact roller 301 can rotate on the fixed shaft 310 to achieve the purpose of allowing the top rod 300 to slide on the hose.

[0063] As a further solution of the present invention, a plurality of cutting grooves 316 are formed on the outer wall of the connecting tube 102, and a liquid storage tank 317 connected to the cutting grooves 316 is also formed on the outer wall of the connecting tube 102;

[0064] By providing the cutting groove 316, when the cutting blade 304 slides, it can be inserted into the cutting groove 316 to better cut the hose. At the same time, when the glue is sprayed on the connecting tube 102, it can also be stored by the cutting groove 316 and the liquid storage tank 317 to ensure that the glue can cover and adhere to the hose.

[0065] As a further solution of the present invention, the glue storage part 106 includes a storage tube 400 rotatably connected to the connecting tube 102, a plurality of connecting pieces 401 are connected to the inner sides of the storage tube 400, a first opening 402 and a second opening 403 are opened on one side of the storage tube 400, a first ring body 404 is rotatably connected in the first opening 402, the first ring body 404 is connected to the connecting tube 102, and a second ring body 405 is rotatably connected in the second opening 403, the injection tube 107 is connected to the first ring body 404 and communicates with the storage tube 400, and a guide piece 406 is connected in the storage tube 400;

[0066] By setting the injection tube 107, a film can be pasted inside the injection tube 107 to block the outflow of glue in the initial state. The storage tube 400 is rotatably set on the connecting tube 102, and a plurality of connecting pieces 401 are connected therein. When the glue flows out of the injection tube 107, there is a cavity in the storage tube 400. The glue in the storage tube 400 will appear on a horizontal surface, and the injection tube 107 above the horizontal surface will not receive the glue. Therefore, when releasing the glue, the storage tube 400 can be rotated to allow the glue to flow on the connecting piece 401. After the storage tube 400 is rotated, the glue flowing on the connecting piece 401 can be guided by the guide piece 406 to enter the injection tube 107 above the horizontal surface, thereby balancing the amount of glue on the connecting tube 102 and the hose.

[0067] As a further solution of the present invention, a reciprocating threaded section 500 is provided on the driving rod 203, a connecting frame 501 is threadedly connected to the reciprocating threaded section 500, a connecting rod 502 is connected to the bottom of the connecting frame 501, the connecting rod 502 passes through the second ring body 405 and extends into the storage tube 400 and is connected to a push plate 503, the push plate 503 is provided with a one-way opening 504, a frame body 505 is provided in the one-way opening 504, a baffle 506 adapted to the one-way opening 504 is slidably connected to the frame body 505, and a fifth spring 507 is connected to the baffle 506 and the frame body 505;

[0068] By providing the reciprocating threaded section 500, when the driving rod 203 rotates, the connecting frame 501 can be reciprocated by the force of the thread. When the connecting frame 501 moves toward the direction of the first tube 100, the push plate 503 can be driven to move through the connecting rod 502. The baffle 506 in the one-way port 504 is limited by the bracket 207 to close the one-way port 504, that is, a positive pressure is generated in the storage tube 400, and the pressure allows the glue to enter the injection tube 107. When the connecting frame 501 moves toward the direction of the second tube 101, because the port for discharging glue on the injection tube 107 is small and is still filled with residual glue, when the push plate 503 is reset, a certain negative pressure is generated in the storage tube 400. The negative pressure can stretch the fifth spring 507 and move the baffle 506 out of the one-way port 504, so that the storage tube 400 is filled with air, which is convenient for the subsequent movement of the push plate 503 to allow the glue to be sprayed out of the injection tube 107 again.

[0069] As a further solution of the present invention, a third gear 508 is rotatably connected to the first tube 100, a fourth gear 509 meshing with the third gear 508 is connected to the storage tube 400, a rack 510 meshing with the third gear 508 is connected to the connecting frame 501, and an avoidance opening 511 corresponding to the rack 510 is opened on the second tube 101;

[0070] By providing the rack 510, when the connecting frame 501 moves toward the second tube 101, the rack 510 can drive the third gear 508 to rotate. The rotation of the third gear 508 can rotate the storage tube 400 through the fourth gear 509, thereby achieving the purpose of rotating the storage tube 400.

[0071] As a further solution of the present invention, a connecting shaft 512 is connected to the first tube 100, the third gear 508 is rotatably connected to the connecting shaft 512, and a ratchet mechanism 513 is provided between the connecting shaft 512 and the third gear 508;

[0072] The ratchet mechanism 513 ensures that the storage tube 400 rotates in only one direction, thereby preventing the storage tube 400 from being reset due to the reset of the connecting frame 501, thereby losing the effect of rotating the storage tube 400 to allow the glue to flow on the connecting piece 401.

[0073] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe device for air conditioning and ventilation, characterized in that: It comprises a first tube (100) and a second tube (101), a preset distance is provided between the first tube (100) and the second tube (101), and a flange is provided on the first tube (100); a connecting pipe (102) disposed inside the first pipe (100); a positioning portion (103) disposed in the second tube (101), used to position the hose when the second tube (101) moves toward the first tube (100), and to allow the hose to move along with the second tube (101); a cutting piece (104) is disposed on the positioning portion (103); a moving part (105) provided between the second tube (101) and the first tube (100), used for moving the second tube (101); A glue storage portion (106) provided outside the connecting pipe (102) and used for storing glue; A plurality of injection pipes (107) provided on the glue storage portion (106); Wherein, the moving part (105) is capable of sliding the cutting piece on the positioning part (103) when moving the second tube (101) to a preset position, so as to cut the hose; Wherein, the moving part (105) is capable of rotating the glue storage part (106) and releasing the glue therein into the injection tube (107) when moving the second tube (101).

2. A pipeline device for air conditioning and ventilation according to claim 1, characterized in that: The moving part (105) comprises a shell (200) connected to the outside of the first tube (100); a rotating ring (201) is rotatably connected to one side of the shell (200); a first gear (202) is connected to the rotating ring (201); a driving rod (203) is rotatably connected to the shell (200); a second gear (204) meshing with the first gear (202) is connected to the driving rod (203); a one-way threaded section (205) is provided on the driving rod (203); a plug-in rod (206) slidably connected to the first tube (100) is connected to the second tube (101); and a bracket (207) threadedly connected to the one-way threaded section (205) is connected to the plug-in rod (206).

3. A pipe device for air conditioning and ventilation according to claim 2, characterized in that: The positioning portion (103) comprises a push rod (300) rotatably connected to the inner wall of the second tube (101); a top contact roller (301) is connected to the bottom of the push rod (300); a first spring (302) is connected between the push rod (300) and the second tube (101); the push rod (300) is arranged to be inclined, and the top contact roller (301) is in contact with the connecting tube (102).

4. A pipeline device for air conditioning and ventilation according to claim 3, characterized in that: The cutting piece (104) comprises a sliding rod (303) slidably connected to the top rod (300); a cutting blade (304) is connected to the bottom of the sliding rod (303); the bottom height of the cutting blade (304) is higher than the bottom height of the top contact roller (301); a second spring (305) is connected between the sliding rod (303) and the top rod (300); a plug interface (306) is provided on one side of the first tube (100); The connecting rod (206) is slidably connected in the plug interface (306); a baffle (307) is provided on one side of the plug rod (206); one end of the baffle (307) is connected to a traction rope (308); the traction rope (308) passes through the plug rod (206), the second tube (101) and the top rod (300) and is connected to the sliding rod (303); a third spring (309) is connected between the baffle (307) and the plug rod (206).

5. The pipeline device for air conditioning and ventilation according to claim 3, characterized in that: Both ends of the top rod (300) are connected to fixed shafts (310) respectively; the top contact roller (301) is arranged on the fixed shaft (310); the fixed shaft (310) is connected to a connecting ring (311) rotatably connected to the top contact roller (301); the outer wall of the connecting ring (311) is provided with a plurality of connecting openings (312); a damping rod (313) is arranged in the connecting opening (312); the inner wall of the top contact roller (301) is provided with a damping groove (314) adapted to the damping rod (313); a fourth spring (315) is connected between the damping rod (313) and the connecting opening (312); one end of the damping rod (313) and the damping groove (314) are semi-spherical.

6. A pipeline device for air conditioning and ventilation according to claim 1, characterized in that: The outer wall of the connecting tube (102) is provided with a plurality of cutting grooves (316), and the outer wall of the connecting tube (102) is also provided with a liquid storage groove (317) connected to the cutting grooves (316).

7. A pipe device for air conditioning and ventilation according to claim 2, characterized in that: The glue storage portion (106) comprises a storage tube (400) rotatably connected to the connecting tube (102); a plurality of connecting plates (401) are connected to both sides of the storage tube (400); a first opening (402) and a second opening (403) are provided on one side of the storage tube (400); a first ring body (404) is rotatably connected in the first opening (402); the first ring body (404) is connected to the connecting tube (102); a second ring body (405) is rotatably connected in the second opening (403); the injection tube (107) is connected to the first ring body (404) and communicates with the storage tube (400); and a guide plate (406) is connected in the storage tube (400).

8. A pipeline device for air conditioning and ventilation according to claim 7, characterized in that: The driving rod (203) is provided with a reciprocating threaded section (500), the reciprocating threaded section (500) is threadedly connected to a connecting frame (501), the bottom of the connecting frame (501) is connected to a connecting rod (502), the connecting rod (502) passes through the second ring body (405) and extends into the storage tube (400) and is connected to a push plate (503), the push plate (503) is provided with a one-way opening (504), a frame body (505) is provided in the one-way opening (504), a baffle plate (506) adapted to the one-way opening (504) is slidably connected to the frame body (505), and a fifth spring (507) is connected between the baffle plate (506) and the frame body (505).

9. A pipeline device for air conditioning and ventilation according to claim 8, characterized in that: The first tube (100) is rotatably connected to a third gear (508); the storage tube (400) is connected to a fourth gear (509) meshing with the third gear (508); the connecting frame (501) is connected to a rack (510) meshing with the third gear (508); and the second tube (101) is provided with an escape opening (511) corresponding to the rack (510).

10. A pipeline device for air conditioning and ventilation according to claim 9, characterized in that: The first tube (100) is connected to a connecting shaft (512), the third gear (508) is rotatably connected to the connecting shaft (512), and a ratchet mechanism (513) is provided between the connecting shaft (512) and the third gear (508).

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