Rapid connecting device for subway ventilation pipeline

Abstract

The utility model relates to the technical field of ventilation pipeline connection, in particular to a subway ventilation pipeline quick connecting device which comprises a first ventilation pipeline, a protective filter screen is movably arranged at one end of the first ventilation pipeline, and first mounting plates are fixedly arranged on the outer sides of the two ends of the first ventilation pipeline. A plurality of installation clamping grooves are formed in the first installation plate, and a second ventilation pipeline is movably arranged on one side of the first ventilation pipeline. The first ventilation pipeline and the second ventilation pipeline are connected and fixed after the connection mounting block is mounted on the mounting plate, so that the situation that the connection mounting block falls off due to vibration and the like when the ventilation pipelines work, and consequently the connection between the ventilation pipelines is not tight is prevented; and the second mounting bolts are used for further fixing the ventilation pipeline, so that the connection stability of the ventilation pipeline is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to ventilation pipeline connection technical field, concretely is a subway ventilation pipeline quick connecting device. BACKGROUND

[0002] With the modernization of city construction, the demand of ventilation pipeline is also more and more big, and the length of ventilation pipeline is connected by a section of ventilation pipeline according to the distance of ventilation, and it needs to be fixed and connected by flange at the joint. At present, there are many flanges for connecting ventilation pipeline, such as PVC flange, aluminum alloy flange, angle steel flange and common plate flange, among which the angle steel flange is more common, but its processing procedure is complex, consumes much time, is weak in strength, needs to be reinforced for large diameter, and the cost is also higher. The angle steel flange needs complicated welding, and after welding, the welding opening also needs to be polished and the surface layer needs to be treated for corrosion prevention, which wastes a lot of labor and affects the construction progress, so a ventilation pipeline connecting device capable of connecting closely is needed.

[0003] The sealing connecting device for composite ventilation pipe of subway construction disclosed in the authorized announcement No. CN 209780937 U realizes that the first adapter and the second adapter are respectively fixed at the two ends of the ventilation pipe, the first adapter end is clamped with the first connecting piece, the second adapter is rotatably provided with the second connecting piece, the first connecting piece is connected with the second connecting piece through threads, and sealing rubber rings are arranged at each joint, the connecting mode is simple and stable, the sealing of the ventilation pipe joint is effectively ensured, and the use is convenient. However, the problem that the existing connection is troublesome is not solved, and therefore the subway ventilation pipeline quick connecting device is provided. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a subway ventilation pipeline quick connecting device to solve the problems in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A subway ventilation pipeline quick connecting device, comprising a first ventilation pipeline, the first ventilation pipeline is movably provided with a protective filter screen at one end, first mounting plates are fixedly arranged on the outer sides of the two ends of the first ventilation pipeline, a plurality of mounting clamping grooves are formed in the first mounting plates, a second ventilation pipeline is movably arranged on one side of the first ventilation pipeline, a sealing pad is movably arranged between the first ventilation pipeline and the second ventilation pipeline, and a connecting mounting block is movably arranged on the side of the outer side of the first mounting plate close to the mounting clamping groove.

[0007] Preferably, a plurality of mounting grooves are formed at one end of the first ventilation pipeline, and first threaded holes are formed in the mounting grooves.

[0008] Preferably, the protective filter screen is movably arranged at one end of the first ventilation duct close to the mounting groove, a fixed plate is fixedly arranged inside the mounting groove outside the protective filter screen, a second threaded hole is formed in the fixed plate, and the first threaded hole and the second threaded hole movably arrange a first mounting bolt.

[0009] Preferably, the first mounting plate is fixedly arranged at one side of the first ventilation duct away from the protective filter screen, a mounting clamping groove is formed in one side of the first mounting plate close to the mounting groove, and a third threaded hole is formed in the mounting clamping groove.

[0010] Preferably, the second ventilation duct is movably arranged at one side of the first ventilation duct away from the protective filter screen, second mounting plates are fixedly arranged at two ends of the second ventilation duct, a sealing gasket is movably arranged between the first mounting plate and the second mounting plate, a plurality of positioning clamping grooves are formed in one side of the sealing gasket close to the positioning clamping grooves, and a fixed hole is formed in the sealing gasket.

[0011] Preferably, the connecting mounting block is movably arranged between the first mounting plate and the second mounting plate, two fourth threaded holes are formed in one side of the connecting mounting block close to the third threaded hole, and a second mounting bolt is movably arranged in the fourth threaded hole.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The subway ventilation duct quick connecting device, when the connecting mounting block is clamped on the mounting clamping grooves of the first mounting plate and the second mounting plate, the first ventilation duct and the second ventilation duct are connected and fixed, in order to prevent the connecting mounting block from falling off due to vibration and other reasons during the work of the ventilation duct, thereby causing the connection between the ventilation ducts to be not tight, and after the connecting mounting block is installed on the mounting plate, the second mounting bolt is used for further fixing, so that the connection stability of the ventilation duct is ensured.

[0014] 2. The subway ventilation duct quick connecting device, the sealing gasket is arranged between the first mounting plate and the second mounting plate, the sealing gasket can ensure that the ventilation duct is still connected tightly when a small deformation occurs due to aging after long-term use of the ventilation duct, air leakage is prevented, and the service life of the ventilation duct is increased. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2This is a schematic diagram of the first mounting plate structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the installation of the protective filter structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the sealing gasket structure installation of this utility model;

[0019] Figure 5 This is a schematic diagram of the installation of the connecting block structure of this utility model.

[0020] In the diagram: 1. First ventilation duct; 2. Mounting groove; 3. First threaded through hole; 4. Protective filter; 5. Fixing plate; 6. Second threaded through hole; 7. First mounting bolt; 8. First mounting plate; 9. Mounting slot; 10. Third threaded through hole; 11. Second ventilation duct; 12. Second mounting plate; 13. Sealing gasket; 14. Positioning slot; 15. Fixing through hole; 16. Connecting mounting block; 17. Fourth threaded through hole; 18. Second mounting bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5 As shown, this utility model provides a technical solution:

[0023] A quick connection device for subway ventilation ducts includes a first ventilation duct 1, a protective filter 4 movably disposed at one end of the first ventilation duct 1, a first mounting plate 8 fixedly disposed on the outer sides of both ends of the first ventilation duct 1, a plurality of mounting slots 9 opened inside the first mounting plate 8, a second ventilation duct 11 movably disposed on one side of the first ventilation duct 1, a sealing gasket 13 movably disposed between the first ventilation duct 1 and the second ventilation duct 11, and a connecting mounting block 16 movably disposed on the outer side of the first mounting plate 8 near the mounting slots 9.

[0024] In this embodiment, preferably, one end of the first ventilation duct 1 is provided with a plurality of mounting grooves 2, and the mounting grooves 2 are provided with first threaded through holes 3 to facilitate the connection of protective filter screens 4.

[0025] In the embodiment, preferably, the protective filter screen 4 is movably arranged at one end of the first ventilation duct 1 close to the mounting groove 2, a fixed plate 5 is fixedly arranged inside the mounting groove 2 outside the protective filter screen 4, a second threaded hole 6 is formed in the fixed plate 5, and a first mounting bolt 7 is movably arranged between the second threaded hole 6 and the first threaded hole 3, so as to facilitate protection of the air inlet or the air outlet.

[0026] In the embodiment, preferably, the first mounting plate 8 is fixedly arranged at one side of the first ventilation duct 1 away from the protective filter screen 4, a mounting clamping groove 9 is formed in one side of the first mounting plate 8 close to the mounting groove 2, and a third threaded hole 10 is formed in the mounting clamping groove 9, so as to facilitate quick connection of the ventilation duct.

[0027] In the embodiment, preferably, the second ventilation duct 11 is movably arranged at one side of the first ventilation duct 1 away from the protective filter screen 4, a second mounting plate 12 is fixedly arranged at each end of the second ventilation duct 11, a sealing gasket 13 is movably arranged between the first mounting plate 8 and the second mounting plate 12, a plurality of positioning clamping grooves 14 are formed in one side of the sealing gasket 13 close to the positioning clamping grooves 14, and a fixed hole 15 is formed in one side of the sealing gasket 13 close to the positioning clamping grooves 14, so as to facilitate tight connection.

[0028] In the embodiment, preferably, the connecting mounting block 16 is movably arranged between the first mounting plate 8 and the second mounting plate 12, two fourth threaded holes 17 are formed in one side of the connecting mounting block 16 close to the third threaded hole 10, and a second mounting bolt 18 is movably arranged in the fourth threaded hole 17, so as to facilitate quick and tight mounting of the two mounting plates.

[0029] The subway ventilation pipeline quick connecting device of the embodiment has the advantages that when installing the subway ventilation pipeline, the first mounting plate 8 and the second mounting plate 12 of the first ventilation pipeline 1 and the second ventilation pipeline 11 are aligned, the sealing gasket 13 is arranged between the first mounting plate 8 and the second mounting plate 12, the connecting mounting block 16 is taken out and clamped in the mounting clamping groove 9, the position between the first mounting plate 8 and the second mounting plate 12 is fixed after the connecting mounting block 16 is clamped in the mounting clamping groove 9, the two mounting plates are further fixed together by the second mounting bolt 18 to prevent the connecting mounting block 16 from falling off due to vibration and the like during the working of the ventilation pipeline, and the ventilation pipeline is not connected tightly, the protective filter screen 4 is arranged at one end of the first ventilation pipeline 1 to protect the air inlet or the air outlet, the first ventilation pipeline 1 and the second ventilation pipeline 11 are connected and fixed after the connecting mounting block 16 is clamped on the mounting clamping groove 9 of the first mounting plate 8 and the second mounting plate 12, the two mounting plates are further fixed by the second mounting bolt 18 to ensure the connection stability of the ventilation pipeline, the sealing gasket 13 is arranged between the first mounting plate 8 and the second mounting plate 12, the sealing gasket 13 is arranged between the first mounting plate 8 and the second mounting plate 12 when the first mounting plate 8 and the second mounting plate 12 are connected and installed, the sealing gasket 13 can ensure that the ventilation pipeline is connected tightly when a small deformation occurs due to aging after long-term use of the ventilation pipeline, air leakage is prevented, and the service life of the ventilation pipeline is prolonged.

[0030] The basic principle, main characteristics and advantages of the subway ventilation pipeline quick connecting device are shown and described above. It should be understood by those skilled in the art that the subway ventilation pipeline quick connecting device is not limited to the above embodiments, the above embodiments and the description in the specification are only preferred examples of the subway ventilation pipeline quick connecting device, and are not intended to limit the subway ventilation pipeline quick connecting device, various changes and improvements can be made to the subway ventilation pipeline quick connecting device without departing from the spirit and scope of the subway ventilation pipeline quick connecting device, and these changes and improvements all fall within the scope of the claimed subway ventilation pipeline quick connecting device. The scope of protection of the subway ventilation pipeline quick connecting device is defined by the appended claims and their equivalents.

Claims

1. A rapid connection device for a subway ventilation duct, characterized in that, The utility model provides a first ventilation pipe (1) is provided with the protective filter screen (4) on one end, and the first installation plate (8) is fixedly arranged on the both ends of first ventilation pipe (1) outside, and the first installation plate (8) is provided with a plurality of installation clamping groove (9) inside, and the second ventilation pipe (11) is movably arranged on one side of first ventilation pipe (1), and the sealing gasket (13) is movably arranged between first ventilation pipe (1) and second ventilation pipe (11), and the connecting mounting block (16) is movably arranged on the side of first installation plate (8) near installation clamping groove (9) outside.

2. The rapid connection device for a subway ventilation duct according to claim 1, characterized in that: The first ventilation pipe (1) is provided with a plurality of installation slots (2) on one end, and the first threaded through hole (3) is formed in the installation slot (2).

3. The rapid connection device for a subway ventilation duct according to claim 1, characterized in that: The protective filter screen (4) is movably arranged on one end of first ventilation pipe (1) near installation slot (2), and the fixed plate (5) is fixedly arranged in the installation slot (2) outside protective filter screen (4), and the second threaded through hole (6) is formed in the fixed plate (5), and the first installation bolt (7) is movably arranged between the second threaded through hole (6) and the first threaded through hole (3).

4. The rapid connection device for a subway ventilation duct according to claim 1, characterized in that: The first installation plate (8) is fixedly arranged on the side of first ventilation pipe (1) away from protective filter screen (4) on both ends, and the installation clamping groove (9) is formed in the side of first installation plate (8) near installation slot (2), and the third threaded through hole (10) is formed in the installation clamping groove (9).

5. The rapid connection device for a subway ventilation duct according to claim 1, characterized in that: The second ventilation pipe (11) is movably arranged on the side of first ventilation pipe (1) away from protective filter screen (4), and the second installation plate (12) is fixedly arranged on both ends of second ventilation pipe (11), and the sealing gasket (13) is movably arranged between the first installation plate (8) and the second installation plate (12), and the sealing gasket (13) is provided with a plurality of positioning clamping grooves (14) outside, and the fixed through hole (15) is formed in the side of sealing gasket (13) near positioning clamping groove (14) inside.

6. The rapid connection device for a subway ventilation duct according to claim 1, characterized in that: The connecting mounting block (16) is movably arranged between the first installation plate (8) and the second installation plate (12), and the two fourth threaded through holes (17) are formed in the side of connecting mounting block (16) near third threaded through hole (10), and the second installation bolt (18) is movably arranged in the fourth threaded through hole (17).

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