PP air pipe

Abstract

The utility model discloses a pp air pipe, which belongs to the technical field of pipelines, and comprises a first pipeline, the side surface of the first pipeline is in lap joint with the corresponding side of a second pipeline, protection components are arranged outside the first pipeline and the second pipeline, the top and the bottom of the first pipeline are fixedly connected with first mounting plates, and the second mounting plates are fixedly connected with second mounting plates. And second mounting plates are fixedly connected to the top and the bottom of the second pipeline correspondingly, a mounting groove is formed in the first mounting plate, the shape of the mounting groove is matched with that of the second mounting plate, and the second mounting plate is inserted into the mounting groove. According to the pp air pipe, by arranging the first mounting plate, the second mounting plate, the mounting groove, the first limiting hole, the second limiting hole and the limiting plate, the whole pipe can be split into a plurality of pipes in the transportation process of the air pipe, so that the pipes can be stacked and transported, the transportation difficulty of the air pipe is reduced, the air pipe is disassembled into the plurality of pipes, and the transportation efficiency is improved. And the air pipe can be conveniently hoisted and mounted.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipelines, in particular to a PP air duct. Background Art

[0002] PP duct is a pipe system used for air delivery and distribution. According to the cross-sectional shape, duct can be divided into circular duct, rectangular duct, oblate duct and other types. Circular duct has small resistance but large height and complex production. Therefore, rectangular duct is mainly used. PP ventilation duct: strong ventilation capacity; acid and alkali resistance, corrosion resistance and temperature resistance are stable, preventing the secondary chemical reaction between the medium in the pipe and the pipe body, reducing the difficulty of purification of industrial waste gas and waste liquid.

[0003] A Chinese patent discloses a spliced ​​PP ventilation duct with the publication number CN218670950U. The patent states that "it comprises a plurality of mutually spliced ​​pipe sections, wherein the pipe sections comprise a detachably connected pipe body and a connecting frame, wherein the pipe body comprises a plurality of detachably connected splicing plates and a plurality of splicing rods, wherein both sides of the splicing plates are provided with a recessed portion 1, a convex portion 1 and a recessed portion 2, and both sides of the splicing rods are provided with a splicing groove for inserting the splicing plates". Existing air ducts are usually produced in whole pieces during the production process, resulting in a longer length of the air duct, which is inconvenient for the handling and transportation of the air duct and causes troubles in the handling and transportation of the air duct. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a PP air duct, which solves the problem that the existing air duct is usually produced as a whole during the production process, resulting in a long length of the air duct, which is inconvenient to carry and transport the air duct and causes troubles in the handling and transportation of the air duct.

[0005] The technical solution of the utility model is as follows: a pp air duct comprises a first pipe, a side surface of the first pipe overlaps with a side corresponding to the second pipe, a protective component is arranged outside the first pipe and the second pipe, the top and the bottom of the first pipe are fixedly connected with a first mounting plate, the top and the bottom of the second pipe are fixedly connected with a second mounting plate, a mounting groove is opened in the first mounting plate, the shape of the mounting groove is adapted to the shape of the second mounting plate, the second mounting plate is plugged into the mounting groove, a plurality of first limiting holes are equidistantly opened in the first mounting plate, a plurality of second limiting holes are equidistantly opened in the second mounting plate, the shape of the first limiting hole is adapted to the shape of the second limiting hole, the position of the first limiting hole corresponds to the position of the second limiting hole, and the first limiting hole and the second limiting hole are riveted through the same limiting plate.

[0006] As a further solution of the utility model: one end of the first pipe is respectively connected to the corresponding end of the two fixed blocks, the ends of the two fixed blocks away from each other are respectively connected to the opposite end of the two first springs, and the ends of the two first springs away from each other are respectively connected to the opposite end of the two connecting plates.

[0007] As a further solution of the utility model: one end of the connecting plate is connected to one end corresponding to the second spring, the other end of the second spring is connected to one end corresponding to the pressure plate, and the other end of the pressure plate is overlapped with one end corresponding to the second mounting plate.

[0008] As a further solution of the utility model: the protection component includes a support seat, the number of the support seats is four, the four support seats are respectively connected to the four sides of the outer wall of the first pipe, the inner wall of the support seat is connected to the outer wall of the damping cylinder, the damping cylinder is movably connected with a damping rod, and the top of the damping rod is connected to the bottom of the buffer plate.

[0009] As a further solution of the utility model: the top of the buffer plate is connected to the bottom of the protective plate, and the opposite sides of the two corresponding protective plates are connected to the two sides of the same reinforcing plate, and the two corresponding protective plates are connected through the same inclined plate.

[0010] As a further solution of the utility model: the outer wall of the damping cylinder is connected to the inner wall of the tray, the top of the tray is connected to the bottom end of the buffer spring, and the top end of the buffer spring is connected to the top of the buffer plate.

[0011] As a further solution of the utility model: a plurality of reinforcing ribs are equidistantly arranged outside the first pipe and the second air duct, and the reinforcing ribs are fixedly connected to the first pipe and the second air duct by welding.

[0012] As a further solution of the utility model: the inner wall of the first pipe is connected to the outer wall of the flame retardant frame, and the inner wall of the flame retardant frame is connected to the outer wall of the sound insulation frame.

[0013] The working principle and beneficial effects of the utility model are:

[0014] 1. The PP air duct, by setting the first mounting plate, the second mounting plate, the mounting groove, the first limiting hole, the second limiting hole and the limiting plate, can split the entire pipe into several pipes during transportation, so that the pipes can be stacked for transportation, thereby reducing the difficulty of transporting the air duct, and the air duct can be dismantled into several pipes, which is convenient for hoisting and installation of the air duct.

[0015] 2. The PP air duct is provided with a protective component. When an external object collides or squeezes the air duct, the damping effect of the buffer spring, damping cylinder and damping rod can absorb most of the impact, thereby achieving a protective effect and avoiding the air duct from being squeezed or collided with the outside world during use and causing damage, thereby ensuring the service life of the air duct.

[0016] 3. The PP air duct can improve the sound insulation effect of the air duct by setting a sound insulation frame, thereby preventing the sound of the air flow passing through the air duct from being too loud and affecting the surrounding environment. The flame retardant frame can reduce the spread rate of the fire, so that when the air duct catches fire, it can provide more rescue time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a three-dimensional structural diagram of the protective component of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the buffer spring of the utility model from the front;

[0021] Figure 4 It is a three-dimensional structural diagram of the reinforcing rib of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the explosion of the first mounting plate of the utility model;

[0023] In the figure: 1 first pipe, 2 second pipe, 3 first mounting plate, 4 second mounting plate, 5 mounting groove, 6 first limiting hole, 7 second limiting hole, 8 limiting plate, 9 fixing block, 10 first spring, 11 connecting plate, 12 second spring, 13 pressing plate, 14 protective assembly, 1401 support seat, 1402 damping cylinder, 1403 damping rod, 1404 buffer plate, 1405 protective plate, 1406 reinforcing plate, 1407 inclined plate, 1408 tray, 1409 buffer spring, 15 reinforcing ribs, 16 flame retardant frame, 17 sound insulation frame. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-5As shown, the utility model provides a technical solution: a pp air duct, comprising a first pipe 1, the side of the first pipe 1 is overlapped with the side corresponding to the second pipe 2, a protective component 14 is arranged outside the first pipe 1 and the second pipe 2, the top and the bottom of the first pipe 1 are fixedly connected with a first mounting plate 3, the top and the bottom of the second pipe 2 are fixedly connected with a second mounting plate 4, a mounting groove 5 is opened in the first mounting plate 3, the shape of the mounting groove 5 is adapted to the shape of the second mounting plate 4, the second mounting plate 4 is plugged into the mounting groove 5, a plurality of first limiting holes 6 are equidistantly opened in the first mounting plate 3, a plurality of second limiting holes 7 are equidistantly opened in the second mounting plate 4, the shape of the first limiting hole 6 is adapted to the shape of the second limiting hole 7, the first limiting hole The position of 6 corresponds to the position of the second limiting hole 7, the first limiting hole 6 and the second limiting hole 7 are riveted through the same limiting plate 8, one end of the first pipe 1 is respectively connected to the corresponding end of the two fixing blocks 9, the ends of the two fixing blocks 9 that are away from each other are respectively connected to the opposite ends of the two first springs 10, the ends of the two first springs 10 that are away from each other are respectively connected to the opposite ends of the two connecting plates 11, one end of the connecting plate 11 is connected to the corresponding end of the second spring 12, the other end of the second spring 12 is connected to the corresponding end of the pressing plate 13, the other end of the pressing plate 13 is overlapped with the corresponding end of the second mounting plate 4, by arranging the first spring 10, the second spring 12 and the pressing plate 13, the second mounting plate 4 can be abutted, thereby further securing To ensure the firmness of the installation of the second mounting plate 4, the protection component 14 includes a support seat 1401, the number of the support seats 1401 is four, and the four support seats 1401 are respectively connected to the four sides of the outer wall of the first pipe 1, the inner wall of the support seat 1401 is connected to the outer wall of the damping cylinder 1402, and the damping cylinder 1402 is movably connected with a damping rod 1403, the top of the damping rod 1403 is connected to the bottom of the buffer plate 1404, the top of the buffer plate 1404 is connected to the bottom of the protection plate 1405, and the opposite sides of the two corresponding protection plates 1405 are connected to the two sides of the same reinforcement plate 1406, and the corresponding two protection plates 1405 are connected through the same inclined plate 1407, and the outer wall of the damping cylinder 1402 is connected to the inner wall of the tray 1408. The top of the tray 1408 is connected to the bottom end of the buffer spring 1409, and the top of the buffer spring 1409 is connected to the top of the buffer plate 1404. By setting the protection component 14, when an external object collides or squeezes the air duct, the damping effect of the buffer spring 1409, the damping cylinder 1402 and the damping rod 1403 can absorb most of the impact, thereby achieving a protective effect, avoiding the air duct from being squeezed or collided with the outside world during use and causing damage, thereby ensuring the service life of the air duct. A number of reinforcing ribs 15 are equidistantly arranged outside the first pipe 1 and the second air duct, and the reinforcing ribs 15 are fixedly connected to the first pipe 1 and the second air duct by welding. By setting the reinforcing ribs 15,The strength of the first pipe 1 and the second air duct can be improved. The inner wall of the first pipe 1 is connected to the outer wall of the flame retardant frame 16. The inner wall of the flame retardant frame 16 is connected to the outer wall of the sound insulation frame 17. By setting the sound insulation frame 17, the sound insulation effect of the air duct can be improved, thereby preventing the sound of the wind passing through the air duct from being too loud and affecting the surrounding environment. The flame retardant frame 16 can reduce the spread rate of the fire, so that when the air duct catches fire, it can have more rescue time.

[0026] The working principle of the utility model is:

[0027] When it is necessary to splice the first pipe 1 and the second pipe 2, first press the first spring 10 to shrink it, first insert the second mounting plate 4 into the mounting groove 5 provided in the first mounting plate 3, and then preliminarily connect the first pipe 1 and the second air duct, then insert a plurality of limiting plates 8 into the corresponding first limiting holes 6 and second limiting holes 7, and then further fix the first pipe 1 and the second pipe 2, and then release the first spring 10, and the first spring 10 drives the connecting plate 11 to move under the action of the elastic force, and moves the height of the connecting plate 11 to a position parallel to the second mounting plate 4, and then the pressing plate 13 drives the pressing plate 13 under the action of the elastic force of the second spring 12, and the second mounting plate 4 can be fixed by the pressing plate 13. By abutting, the splicing of the first pipe 1 and the second pipe 2 can be completed. When multiple pipes need to be spliced, several first pipes 1 and second pipes 2 can be spliced ​​according to the above steps. When an external object collides or squeezes the air duct, the protective plate 1405 will be squeezed first. The protective plate 1405 will be compressed to squeeze the buffer plate 1404. The buffer plate 1404 will squeeze the buffer spring 1409, so that the buffer spring 1409 is compressed. At the same time, the buffer plate 1404 will be compressed to drive the damping rod 1403 to move along the damping cylinder 1402. Through the damping effect of the buffer spring 1409, the damping cylinder 1402 and the damping rod 1403, most of the impact can be absorbed, thereby achieving a protective effect.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A PP air duct, comprising a first pipe (1), characterized in that: The side surface of the first pipe (1) overlaps with the side corresponding to the second pipe (2); a protective component (14) is arranged outside the first pipe (1) and outside the second pipe (2); the top and bottom of the first pipe (1) are fixedly connected to a first mounting plate (3); the top and bottom of the second pipe (2) are fixedly connected to a second mounting plate (4); a mounting groove (5) is provided in the first mounting plate (3); the shape of the mounting groove (5) matches the shape of the second mounting plate (4); the second mounting plate (4) is inserted into the mounting groove (5); a plurality of first limiting holes (6) are equidistantly provided in the first mounting plate (3); a plurality of second limiting holes (7) are equidistantly provided in the second mounting plate (4); the shape of the first limiting hole (6) matches the shape of the second limiting hole (7); the position of the first limiting hole (6) corresponds to the position of the second limiting hole (7); the first limiting hole (6) and the second limiting hole (7) are riveted through the same limiting plate (8).

2. A PP air duct according to claim 1, characterized in that: One end of the first pipe (1) is connected to one end corresponding to the two fixing blocks (9), the ends of the two fixing blocks (9) away from each other are connected to one end opposite to the two first springs (10), and the ends of the two first springs (10) away from each other are connected to one end opposite to the two connecting plates (11).

3. A PP air duct according to claim 2, characterized in that: One end of the connecting plate (11) is connected to a corresponding end of the second spring (12), the other end of the second spring (12) is connected to a corresponding end of the pressing plate (13), and the other end of the pressing plate (13) is overlapped with a corresponding end of the second mounting plate (4).

4. The PP air duct according to claim 1, characterized in that: The protection component (14) comprises a support seat (1401), wherein the number of the support seats (1401) is four, and the four support seats (1401) are respectively connected to the four sides of the outer wall of the first pipe (1), the inner wall of the support seat (1401) is connected to the outer wall of the damping cylinder (1402), and a damping rod (1403) is movably connected inside the damping cylinder (1402), and the top end of the damping rod (1403) is connected to the bottom of the buffer plate (1404).

5. The PP air duct according to claim 4, characterized in that: The top of the buffer plate (1404) is connected to the bottom of the protective plate (1405), and the opposite sides of the two corresponding protective plates (1405) are connected to the two sides of the same reinforcing plate (1406), and the two corresponding protective plates (1405) are connected through the same inclined plate (1407).

6. The PP air duct according to claim 4, characterized in that: The outer wall of the damping cylinder (1402) is connected to the inner wall of the tray (1408), the top of the tray (1408) is connected to the bottom end of the buffer spring (1409), and the top end of the buffer spring (1409) is connected to the top of the buffer plate (1404).

7. The PP air duct according to claim 1, characterized in that: A plurality of reinforcing ribs (15) are equidistantly arranged outside the first pipe (1) and the second air duct, and the reinforcing ribs (15) are fixedly connected to the first pipe (1) and the second air duct by welding.

8. The PP air duct according to claim 1, characterized in that: The inner wall of the first pipe (1) is connected to the outer wall of the flame retardant frame (16), and the inner wall of the flame retardant frame (16) is connected to the outer wall of the sound insulation frame (17).

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