Combined air pipe

Abstract

The utility model relates to the technical field of air pipes, in particular to a combined air pipe which comprises a U-shaped plate, insertion strips are arranged at the left end and the right end of the U-shaped plate, a bottom plate is arranged at the bottom of the U-shaped plate, second insertion holes are formed in the surfaces of the left side and the right side of the U-shaped plate, and a protection assembly is sequentially provided with a fireproof layer, a heat preservation layer and a sound insulation layer from outside to inside. The left end of the pin shaft is sleeved with a bolt, the left end of the pin shaft is sequentially sleeved with a transverse column and a cross ring from left to right, a rectangular block is arranged in the other end of the U-shaped plate, and a first circular ring, a second circular ring, a spherical body and a connecting cylinder base are sequentially arranged in the rectangular block from front to back. The pin shaft is rotated by rotating the transverse column in the direction of the thin plate on the cross ring, the angle of the first baffle and the angle of the second baffle are adjusted through rotation of the pin shaft, the adjusted pin shaft is conveniently and rapidly fixed by arranging the bolt, and different air volumes are conveniently output by arranging the first blocking hole and the second blocking hole which are different in size.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air pipe, concretely to a combined air pipe. BACKGROUND

[0002] With the continuous advancement of urbanization, the number and scale of various construction projects are rapidly increasing, and the demand for ventilation systems is also increasing. Large commercial buildings, office buildings, hospitals, hotels and other public buildings as well as residential buildings all need to install ventilation ducts to achieve air circulation and exchange, which provides a broad market space for the application of combined air pipes.

[0003] The utility model with publication number CN211221663U proposes a combined air pipe, which includes two oppositely arranged air pipe assemblies; the air pipe assembly includes: an air pipe; an air outlet box fixed on the outer side of the air pipe; the air outlet box is provided with a plurality of capillary tubes penetrating through the side wall of the air outlet box and the corresponding side wall of the air pipe.

[0004] The above technical solution, for the heating film heating link, as the hot air outlet cylinder of the heating film, through the additional air outlet box and capillary tube structure, the hot air can be evenly distributed, energy saving and environmental protection, low cost, convenient to use, but the device is not convenient to adjust the air volume according to different requirements, and the air pipe body is not provided with a protection assembly to achieve the effect of fireproofing and heat preservation, which is not convenient to adjust the air direction of the outlet according to different requirements. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a combined air pipe to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A combined air pipe, a U-shaped plate and a protection assembly provided inside the U-shaped plate, an adjusting assembly is provided inside the front end of the U-shaped plate, plug strips are provided at the left and right ends of the U-shaped plate, a bottom plate is provided at the bottom of the U-shaped plate, second insertion holes are formed on the left and right surfaces of the U-shaped plate, the protection assembly is sequentially provided with a fireproof layer, a heat preservation layer and a sound insulation layer from the outside to the inside, the adjusting assembly includes a pin shaft provided inside the second insertion hole, and a first baffle and a second baffle provided on the surface of the outer ring of the pin shaft, a bolt is sleeved on the left end of the pin shaft, a horizontal column and a cross ring are sequentially sleeved on the left end of the pin shaft from left to right, a rectangular block is provided inside the other end of the U-shaped plate, a first ring, a second ring, a spherical body and a connecting cylinder are sequentially provided inside the rectangular block from front to back.

[0008] Preferably, the bottom plate is provided with a socket on both sides, the outer diameter of the plug strip matches the inner diameter of the socket, the U-shaped plate and the bottom plate are slidingly connected, and a plurality of third insertion holes are formed at the corresponding positions of the bottom plate and the U-shaped plate at equal intervals.

[0009] The utility model discloses, and the plug -in strip and U type board are integrally formed structure, and the socket and the bottom plate are integrally formed structure, and the sliding connection realizes U type board and the quick connection and separation of bottom plate, and each third jack inside is equipped with threaded column, and threaded column is connected with third jack screw thread, and threaded connection realizes the quick fixed connection of U type board and bottom plate, and the equidistance setting third jack and threaded column facilitate the overall structure stability of U type board and bottom plate even increase.

[0010] Preferably, the U-shaped plate and the bottom plate are provided with first insertion holes near the four corners, the top of the first insertion hole provided on the U-shaped plate is provided with a connecting plate, and the bottom of the first insertion hole provided on the bottom plate is provided with a connecting plate.

[0011] In the utility model, the connecting plate is symmetrically provided with through holes of the same size as the first insertion holes, the two first insertion holes at the top of the connection between the two U-shaped plates correspond to the positions of the two through holes, the first insertion holes and the through holes are provided with screws, the connecting plate and the U-shaped plate are fixedly connected through the screws, the connecting plate and the bottom plate are fixedly connected through the screws, the fixed connection of the screws realizes the quick fixed connection and separation of the plurality of U-shaped plates and the plurality of bottom plates, and the plurality of connecting plates are connected with the corresponding U-shaped plates and bottom plates to increase the overall structural strength.

[0012] Preferably, the outer diameter of the sound insulation layer is matched with the inner diameter of the thermal insulation layer, the outer diameter of the thermal insulation layer is matched with the inner diameter of the fireproof layer, the sound insulation layer and the thermal insulation layer are adhesively fixed, and the thermal insulation layer and the fireproof layer are adhesively fixed.

[0013] In the utility model, the fireproof layer is made of a galvanized stainless steel plate, the setting of the fireproof layer helps to prevent the spread of fire, can make the U-shaped plate more efficient when in use, and reduces the abrasion of the U-shaped plate caused by temperature changes in daily life, the sound insulation layer is made of a non-combustible composite porous polyester fiber sound-absorbing board, the setting of the sound insulation layer in the U-shaped plate and the bottom plate can effectively block the noise generated by the friction between the airflow in the air pipe and the inner wall of the air pipe, thereby achieving the sound insulation effect, the adhesively fixed helps to increase the overall structural strength of the sound insulation layer, the thermal insulation layer and the fireproof layer, the thermal insulation layer is made of a rock wool inorganic fiber material, cold and hot air is transported through the air pipe, and the thermal insulation layer can block the transmission of external air temperature and maintain the temperature state of the air itself.

[0014] Preferably, the second insertion hole is rotatably connected with the pin shaft, a plurality of first blocking holes are equidistantly provided on the first baffle, and a plurality of second blocking holes are equidistantly provided on the second baffle.

[0015] The utility model discloses, the second jack inner diameter and the pin shaft outer diameter are adapted, and the rotation connection realizes the angle of adjustment first baffle, second baffle, and first baffle and second baffle angle are perpendicular state, and first baffle, second baffle are welded fixed with pin shaft respectively, and welded fixed respectively increase the overall structural strength of first baffle, second baffle and pin shaft, and first baffle hole inner diameter is wider than second baffle hole inner diameter, and the user can be according to different requirements fast rotation selection, and first baffle hole, second baffle hole are set up respectively on first baffle, second baffle to facilitate the formation of different size air volume.

[0016] Preferably, the bolt is threadedly connected with the pin shaft, the cross column and the cross circle are welded and fixed with one end of the pin shaft, two thin plates vertically placed are arranged on the cross circle, and the two thin plates are in the same horizontal plane with the first baffle and the second baffle.

[0017] In the utility model, the bolt is threadedly connected with the pin shaft, the threaded connection is used for quickly fixing the position of the pin shaft and the first baffle and the second baffle connected with the pin shaft after adjustment, the cross column is welded and fixed with the other end of the pin shaft, the welding and fixing are used for realizing that the cross column drives the first baffle and the second baffle to change the angle by rotating, the cross circle arranged on the outer end of the cross column is welded and fixed with the pin shaft, the welding and fixing increase the overall structural stability, the two thin plates are in the same horizontal plane with the first baffle and the second baffle, which helps the user to quickly understand the angle of the first baffle and the second baffle inside the U-shaped plate, and provides positioning convenience for the user, when the user needs to overhaul and clean the first baffle and the second baffle inside the air pipe, the cross circle helps the maintenance personnel to quickly find the corresponding internal position.

[0018] Preferably, the rectangular block is fixedly connected with the inner wall of the U-shaped plate and the top of the bottom plate through screws, a plurality of fourth jacks are arranged on the rear end of the connecting cylinder seat at equal intervals in a ring shape, a cylinder mouth is arranged on the front end of the connecting cylinder seat, and a plurality of second connecting columns are arranged on the outer ring of the cylinder mouth at equal intervals.

[0019] In the utility model, the screw fixed connection increases the overall structural strength of the rectangular block, the U-shaped plate and the bottom plate, a screw is arranged in the fourth jack, the rear end of the connecting cylinder seat is fixedly connected with the rectangular block through the screw, the screw fixed connection realizes quick connection and disassembly of the connecting cylinder seat and the rectangular block, the diameter of the cylinder mouth is smaller than the diameter of the spherical body, the spherical body can be clamped into the connecting cylinder seat from the cylinder mouth, the second connecting column is welded and fixed with the connecting cylinder seat, and the welding and fixing increase the overall structural stability of the connecting cylinder seat and the second connecting column.

[0020] Preferably, a through hole is arranged in the middle of the spherical body, a plurality of first connecting columns are arranged on the outer ring of the rear end of the second ring at equal intervals, a second threaded hole is arranged in each of the first connecting column and the second connecting column, and a plurality of first threaded holes are arranged on the second ring at equal intervals in a ring shape.

[0021] The utility model discloses a connecting cylinder seat and spherical body joint fixing, and the size of first connecting column and second connecting column is same, and the inside of second threaded hole is equipped with screw, and the screw is connected with second threaded hole, and the length of screw is same with the sum of first connecting column and second connecting column, and threaded connection realizes the quick connection and disassembly of connecting cylinder seat and second ring, and the inside of first threaded hole is equipped with screw, and the first threaded hole and screw realize the threaded connection of first ring and second ring, and threaded connection realizes the quick connection and fixing of first ring and second ring, and the first ring, second ring and connecting cylinder seat are convenient for the rotation of spherical body in the inside of cylinder mouth, and the user reaches the change of the through -hole direction of spherical body by rotating in the inside of through -hole, and spherical body is located between connecting cylinder seat and first ring, and the force that the user exerts is greater than the friction of spherical body and connecting cylinder seat, first ring, realizes the direction adjustment of the through -hole of spherical body, and further realizes the wind direction adjustment cooperation.

[0022] Compared with the prior art, the utility model has the advantages that:

[0023] 1. The utility model discloses a adjusting assembly is set up to realize the adjustment of air volume, and the cross circle is rotated to realize the rotation of pin shaft according to the direction of thin plate, and the angle of first baffle and second baffle is adjusted, and the bolt is convenient for the quick fixing of adjusted pin shaft, and the first baffle and second baffle of different sizes are convenient for the output of different air volume, and the protection assembly is set up to realize the protection of U -shaped board to the inside, and the fire -resistant layer made of outer galvanized stainless steel sheet reaches the fire -proof effect, and the sound insulation layer can reduce the noise propagation, and the heat preservation layer realizes the transmission of outside air temperature.

[0024] 2. The utility model discloses a spherical body, connecting cylinder seat and first ring realize the adjustment of air pipe export direction, and connecting cylinder seat and first ring, second ring realize the rotation of spherical body in situ, and the through -hole is seted up in the inside of spherical body to realize the manual adjustment of spherical body through -hole direction, and the insertion strip on U -shaped board and the spout on bottom plate are connected to realize the quick connection and separation of U -shaped board and bottom plate, and the connecting plate and screw nail are seted up at the top of U -shaped board and the bottom of bottom plate to realize the quick fixing and separation of multiple U -shaped board and bottom plate. DRAWINGS

[0025] Figure 1 It is the overall structure schematic drawing of combined air pipe of the utility model;

[0026] Figure 2 It is the structure schematic drawing of first baffle and second baffle of the utility model;

[0027] Figure 3 It is the structure schematic drawing of bolt and pin shaft of the utility model;

[0028] Figure 4The utility model discloses a U type board, bottom plate and connecting plate structure schematic view.

[0029] Figure 5 The utility model discloses a U type board and bottom plate cross section structure schematic view.

[0030] Figure 6 The utility model discloses a spherical body and first circular ring, second circular ring structure schematic view.

[0031] The meaning of each mark in the figure is:

[0032] 1, U type board;10, insert strip;100, first jack;101, second jack;11, bottom plate;110, spout;111, third jack;12, connecting plate;

[0033] 2, protection assembly;20, fireproof layer;21, heat preservation layer;22, sound insulation layer;

[0034] 3, adjusting assembly;30, pin shaft;300, cross circle;301, horizontal column;302, bolt;31, first baffle;310, first block hole;32, second baffle;320, second block hole;

[0035] 4, first circular ring;40, first screw hole;41, second circular ring;410, first connecting column;42, spherical body;420, through -hole;43, connecting cylinder base;430, cylinder mouth;431, second connecting column;432, second screw hole;433, fourth jack. Specific embodiments

[0036] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0037] Please refer to Figures 1-6 The embodiment provides a technical scheme:

[0038] The utility model relates to a combined air pipe, U-shaped plate 1 and the protection assembly 2 that is equipped inside U-shaped plate 1, the inside of the front end of U-shaped plate 1 is equipped with the adjusting assembly 3, and the adjusting assembly 3 includes the pin shaft 30 that the second jack 101 is equipped with inside, and the first baffle 31 with the second baffle 32 that the outer circle surface of pin shaft 30 is equipped with, the bolt 302 of pin shaft 30 left end sleeve is equipped with, and pin shaft 30 left end is sequentially sleeveed from left to right with horizontal column 301 and cross circle 300, and the second jack 101 is rotatably connected with pin shaft 30, a plurality of first block holes 310 are formed at equal intervals on the first baffle 31, and a plurality of second block holes 320 are formed at equal intervals on the second baffle 32.

[0039] In the utility model, the inner diameter of the second jack 101 is matched with the outer diameter of the pin shaft 30, rotationally connected to adjust the angle of the first baffle 31 and the second baffle 32, and the angle of the first baffle 31 and the second baffle 32 is perpendicular, the first baffle 31 and the second baffle 32 are respectively welded and fixed with the pin shaft 30, welded and fixed to respectively increase the overall structural strength of the first baffle 31, the second baffle 32 and the pin shaft 30, the inner diameter of the first block hole 310 is wider than the inner diameter of the second block hole 320, the user can quickly rotate and select according to different requirements, and the first block hole 310 and the second block hole 320 are respectively formed on the first baffle 31 and the second baffle 32 to facilitate the formation of different air volumes.

[0040] The bolt 302 is threadedly connected with the pin shaft 30, the horizontal column 301 and the cross circle 300 are both welded and fixed with one end of the pin shaft 30, two thin plates are vertically arranged on the cross circle 300, and the two thin plates are in the same horizontal plane with the first baffle 31 and the second baffle 32.

[0041] In the utility model, the bolt 302 is threadedly connected with the pin shaft 30, the threadedly connected structure is used to quickly fix the position of the pin shaft 30 and the first baffle 31 and the second baffle 32 connected with the pin shaft 30 after adjustment, the horizontal column 301 is welded and fixed with the other end of the pin shaft 30, welded and fixed to realize angle change of the first baffle 31 and the second baffle 32 driven by the horizontal column 301, the cross circle 300 is welded and fixed with the pin shaft 30, welded and fixed to increase the overall structural stability, and the two thin plates are in the same horizontal plane with the first baffle 31 and the second baffle 32, which is helpful for the user to quickly understand the angle of the first baffle 31 and the second baffle 32 inside the U-shaped plate 1 and provide positioning convenience for the user, when the user needs to overhaul and clean the first baffle 31 and the second baffle 32 inside the air pipe, the cross circle 300 is helpful for the maintenance personnel to quickly find the corresponding internal position.

[0042] Further, the other end of the U-shaped plate 1 is internally provided with a rectangular block, the rectangular block is internally provided with a first ring 4, a second ring 41, a spherical body 42 and a connecting barrel seat 43 from front to back in sequence, the rectangular block is fixedly connected with the inner wall of the U-shaped plate 1 and the top of the bottom plate 11 through screws, a plurality of fourth insertion holes 433 are arranged at the rear end of the connecting barrel seat 43 in a ring shape and at equal intervals, and a barrel mouth 430 is arranged at the front end of the connecting barrel seat 43, a plurality of second connecting columns 431 are arranged at the outer ring of the barrel mouth 430 in a ring shape and at equal intervals.

[0043] In the utility model, the overall structural strength of the rectangular block and the U-shaped plate 1 and the bottom plate 11 is increased through screw fixing connection, the rear end of the connecting barrel seat 43 is fixedly connected with the rectangular block through screws, the screw fixing connection realizes quick connection and dismounting of the connecting barrel seat 43 and the rectangular block, the diameter of the barrel mouth 430 is smaller than the diameter of the spherical body 42, the spherical body 42 is conveniently clamped into the connecting barrel seat 43 from the barrel mouth 430, the second connecting column 431 is fixedly welded with the connecting barrel seat 43, and the overall structural stability of the connecting barrel seat 43 and the second connecting column 431 is increased through welding.

[0044] Secondly, a through hole 420 is arranged in the middle of the spherical body 42, a plurality of first connecting columns 410 are arranged at the outer ring of the rear end of the second ring 41 at equal intervals, a second threaded hole 432 is arranged in each of the first connecting column 410 and the second connecting column 431, and a plurality of first threaded holes 40 are arranged at the corresponding position of the first ring 4 and the second ring 41 in a ring shape and at equal intervals.

[0045] In the utility model, the connecting barrel seat 43 is fixedly connected with the spherical body 42, the size of the first connecting column 410 is same as that of the second connecting column 431, a screw is arranged in the second threaded hole 432, the screw is threadedly connected with the second threaded hole 432, the length of the screw is same as the sum of the first connecting column 410 and the second connecting column 431, the threaded connection realizes quick connection and dismounting of the connecting barrel seat 43 and the second ring 41, a screw is arranged in the first threaded hole 40, the first threaded hole 40 and the screw are arranged to realize threaded connection of the first ring 4 and the second ring 41, the threaded connection realizes quick connection and fixing of the first ring 4 and the second ring 41, the first ring 4, the second ring 41 and the connecting barrel seat 43 are arranged to facilitate rotation of the spherical body 42 in the barrel mouth 430, the user reaches into the through hole 420 to rotate to change the direction of the through hole 420 of the spherical body 42, the spherical body 42 is located between the connecting barrel seat 43 and the first ring 4, the force applied by the user is greater than the friction force of the spherical body 42 and the connecting barrel seat 43 and the first ring 4, the direction of the through hole 420 on the spherical body 42 is adjusted, and then the wind direction adjustment is realized.

[0046] In addition, the U-shaped plate 1 is provided with an insertion strip 10 at both ends, the U-shaped plate 1 is provided with a bottom plate 11 at the bottom, the second insertion hole 101 is arranged on the surface of the U-shaped plate 1, the insertion strip 10 is matched with the insertion hole 110 in diameter, the U-shaped plate 1 is slidably connected with the bottom plate 11, and the third insertion hole 111 is arranged at the corresponding position of the U-shaped plate 1 and the bottom plate 11.

[0047] In the utility model, the insertion strip 10 and the U-shaped plate 1 are integrally formed, the insertion hole 110 and the bottom plate 11 are integrally formed, the sliding connection realizes quick connection and separation of the U-shaped plate 1 and the bottom plate 11, the third insertion hole 111 is arranged in the inside of each third insertion hole 111, the threaded column is threadedly connected with the third insertion hole 111, the threaded connection realizes quick fixed connection of the U-shaped plate 1 and the bottom plate 11, and the third insertion hole 111 and the threaded column are arranged at equal intervals, so that the overall structural stability of the U-shaped plate 1 and the bottom plate 11 can be uniformly increased.

[0048] The first insertion hole 100 is arranged on the U-shaped plate 1, and the first insertion hole 100 is arranged on the bottom plate 11.

[0049] In the utility model, the through hole symmetrical with the first insertion hole 100 is arranged on the connecting plate 12, the two first insertion holes 100 at the top of the two U-shaped plates 1 are respectively corresponded with the two through hole positions, the first insertion hole 100 and the through hole are provided with a screw, the connecting plate 12 and the U-shaped plate 1 are fixedly connected through the screw, the connecting plate 12 and the bottom plate 11 are fixedly connected through the screw, the screw fixedly connects to realize quick fixed connection and separation of the plurality of U-shaped plates 1 and the plurality of bottom plates 11, and the plurality of connecting plates 12 are connected with the corresponding U-shaped plates 1 and bottom plates 11 to increase the overall structural strength.

[0050] It is worth supplementing that the protective assembly 2 is sequentially provided with a fireproof layer 20, a heat preservation layer 21 and a sound insulation layer 22 from outside to inside, the sound insulation layer 22 is matched with the heat preservation layer 21 in diameter, the heat preservation layer 21 is matched with the fireproof layer 20 in diameter, the sound insulation layer 22 and the heat preservation layer 21 are adhesively fixed, and the heat preservation layer 21 and the fireproof layer 20 are adhesively fixed.

[0051] The utility model discloses a fireproof layer 20 is made of the galvanized stainless steel sheet of outer layer, and setting up fireproof layer 20 helps to prevent the spread of fire, can make U type board 1 more efficient when using, reduce the abrasion of temperature change to U type board 1 in daily life simultaneously, the sound insulation layer 22 is made of the incombustible composite porous polyester fiber sound absorption board, and setting up sound insulation layer 22 in U type board 1, bottom plate 11 respectively can effectively block the noise generated by the airflow in the air pipe and the friction of air pipe inner wall, and further reach sound insulation effect, and the adhesion and fixation help to increase the overall structural strength of sound insulation layer 22, heat preservation layer 21 and fireproof layer 20, and heat preservation layer 21 is made of rock wool inorganic fiber material, and cold and hot air is transported through the air pipe, and heat preservation layer 21 can block the transmission of external air temperature, and maintain the temperature state of air itself.

[0052] The utility model discloses a fireproof layer 20 improves the fireproof performance of the air pipe, the heat preservation layer 21 is adhered to the inner wall of the fireproof layer 20, and the sound insulation layer 22 is adhered to the inner wall of the heat preservation layer 21, and the protection assembly 2 constitutes the U type board 1, and the plug strip 10 of both ends of the U type board 1 is slidably connected with the spigot 110 of both ends of the bottom plate 11, a plurality of third insertion holes 111 are equidistantly formed on the both sides of the U type board 1 and the bottom plate 11, the threaded column is inserted into the third insertion hole 111 and is screwed, at this time, the U type board 1 is connected and fixed with the bottom plate 11, the first insertion hole 100 is formed on the top end of the U type board 1 close to the four corners and the bottom plate 11 close to the four corners, the connecting plate 12 symmetrically provided with perforations is placed on the top end of the first insertion hole 100, the pin shaft 30 is inserted into the second insertion hole 101 on the both sides of the U type board 1, the first baffle 31 and the second baffle 32 are welded on the pin shaft 30, the first baffle hole 310 is equidistantly formed on the first baffle 31, the second baffle hole 320 is equidistantly formed on the second baffle 32, the cross column 301 is welded on the right end of the pin shaft 30, the cross ring 300 is welded on the surface of the cross column 301, and the bolt 302 is threadedly connected with the right end of the pin shaft 30.

[0053] The rectangular block is connected with the connecting cylinder seat 43 and the rectangular block by screwing on the inner wall of the other end of the U type board 1, the perforation is formed in the middle of the rectangular block, the screw is inserted into the fourth insertion hole 433 and is screwed, at this time, the connecting cylinder seat 43 is connected and fixed with the rectangular block, the second connecting column 431 is equidistantly welded on the outer ring annular of the cylinder mouth 430 of the connecting cylinder seat 43, the through hole 420 is formed in the middle of the spherical body 42, the spherical body 42 is clamped into the inside of the cylinder mouth 430, the first connecting column 410 is welded on the corresponding place of the second connecting column 431 and the outer ring annular of the rear end of the second ring 41, the first threaded hole 40 is equidistantly formed on the first ring 4 and the second ring 41, and the screw is screwed with the first threaded hole 40, at this time, the first ring 4 is connected and fixed with the second ring 41, the screw is inserted into the second threaded hole 432 in the inside of the first connecting column 410 and the second connecting column 431 and is screwed, at this time, the position of the spherical body 42 is fixed, and the angle of the spherical body 42 can be rotated.

[0054] The user screws the screw into the perforation and the first insertion hole 100, so that the plurality of sliding connection U-shaped plates 1 and the bottom plate 11 are connected and fixed, the bolt 302 is unscrewed from the pin shaft 30, the horizontal column 301 is rotated to adjust the angle of the first baffle plate 31 and the second baffle plate 32 to the required position, and then the bolt 302 is tightened around the pin shaft 30. The user puts his hand into the through hole 420 and presses a certain position inside the through hole 420 to adjust the angle of the spherical body 42. The spherical body 42 is located between the connecting cylinder seat 43 and the first ring 4. When the force applied by the user is greater than the friction force between the spherical body 42, the connecting cylinder seat 43 and the first ring 4, the direction of the through hole 420 on the spherical body 42 is adjusted, and then the wind direction adjustment is realized, so that the effect of quickly adjusting the wind direction is achieved.

[0055] When it is necessary to adjust the large air volume, the horizontal column 301 is manually rotated, the horizontal column 301 remains horizontal, the first baffle plate 31 is arranged vertically with the horizontal column 301, the first baffle plate 31 is vertically arranged inside the U-shaped plate 1, the first hole 310 is ventilated, the horizontal column 301 is fixed with the U-shaped plate 1 through a screw, and the adjusted position is fixed. When it is necessary to adjust the small air volume, the horizontal column 301 is manually rotated, the horizontal column 301 remains vertical, the second baffle plate 32 is arranged horizontally with the horizontal column 301, the second baffle plate 32 is vertically arranged inside the U-shaped plate 1, the second hole 320 is ventilated, the hole diameter is reduced, the air volume is reduced, the horizontal column 301 is fixed with the U-shaped plate 1 through a screw, and the adjusted position is fixed.

Claims

1. A combined air duct, comprising a U-shaped plate (1) and a protection assembly (2) arranged inside the U-shaped plate (1), and an adjusting assembly (3) arranged inside the front port of the U-shaped plate (1), characterized in that: The U-shaped plate (1) is provided with an insertion strip (10) at both ends, the bottom of the U-shaped plate (1) is provided with a bottom plate (11), the left and right surfaces of the U-shaped plate (1) are provided with a second insertion hole (101), the protection assembly (2) is sequentially provided with a fireproof layer (20), a heat preservation layer (21) and a sound insulation layer (22) from outside to inside, the adjusting assembly (3) comprises a pin shaft (30) provided in the second insertion hole (101), and a first baffle (31) and a second baffle (32) provided on the outer surface of the pin shaft (30), the left end of the pin shaft (30) is provided with a bolt (302), the left end of the pin shaft (30) is sequentially provided with a horizontal column (301) and a cross ring (300) from left to right, the other end of the U-shaped plate (1) is provided with a rectangular block inside, the rectangular block is sequentially provided with a first circular ring (4), a second circular ring (41), a spherical body (42) and a connecting cylinder seat (43) from front to back.

2. The modular air duct of claim 1, wherein: The bottom plate (11) is provided with a spigot (110) at both sides, the outer diameter of the insertion strip (10) matches the inner diameter of the spigot (110), the U-shaped plate (1) is in sliding connection with the bottom plate (11), and a plurality of third insertion holes (111) are formed at the positions corresponding to the U-shaped plate (1) on the bottom plate (11) at equal intervals.

3. The modular air duct of claim 1, wherein: The U-shaped plate (1) and the bottom plate (11) are provided with first insertion holes (100) near the four corners, the top of the first insertion hole (100) formed on the U-shaped plate (1) is provided with a connecting plate (12), and the bottom of the first insertion hole (100) formed on the bottom plate (11) is provided with a connecting plate (12).

4. The modular air duct of claim 1, wherein: The outer diameter of the sound insulation layer (22) matches the inner diameter of the heat preservation layer (21), the outer diameter of the heat preservation layer (21) matches the inner diameter of the fireproof layer (20), and the sound insulation layer (22) and the heat preservation layer (21) are adhesively fixed, and the heat preservation layer (21) and the fireproof layer (20) are adhesively fixed.

5. The modular air duct of claim 1, wherein: The second insertion hole (101) is in rotational connection with the pin shaft (30), a plurality of first block holes (310) are formed on the first baffle (31) at equal intervals, and a plurality of second block holes (320) are formed on the second baffle (32) at equal intervals.

6. The modular air duct of claim 1, wherein: The bolt (302) is in threaded connection with the position corresponding to the pin shaft (30), the horizontal column (301) and the cross ring (300) are fixedly connected to one end of the pin shaft (30) by welding, two thin plates vertically placed are arranged on the cross ring (300), and the two thin plates are in the same horizontal plane with the first baffle (31) and the second baffle (32) respectively.

7. The modular air duct of claim 1, wherein: The rectangular block is fixedly connected to the inner wall of the U-shaped plate (1) and the top of the bottom plate (11) through screws, a plurality of fourth insertion holes (433) are formed in the rear end of the connecting cylinder seat (43) at equal intervals, a cylinder mouth (430) is arranged at the front end of the connecting cylinder seat (43), and a plurality of second connecting columns (431) are arranged on the outer ring of the cylinder mouth (430) at equal intervals.

8. The modular air duct of claim 1, wherein: The spherical body (42) is provided with a through hole (420) in the middle, and the outer ring of the rear end of the second circular ring (41) is provided with a plurality of first connecting columns (410) at equal intervals, and each of the first connecting columns (410) and the second connecting column (431) is provided with a second threaded hole (432) in the inside, and the first circular ring (4) and the second circular ring (41) are provided with a plurality of first threaded holes (40) at equal intervals in the corresponding annular positions.

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