Quick connecting joint for ventilating pipeline

Abstract

The utility model discloses a quick connecting joint for a ventilating pipeline, which comprises a connecting ring I and a connecting ring II, one side of the connecting ring I is connected with a connecting pipe, the other side of the connecting ring I is provided with a threaded groove and an annular groove, one side of the connecting ring II is provided with a threaded ring and a sealing ring, and the other side of the connecting ring II is provided with a sealing ring. Fixing blocks are arranged on one side of the second connecting ring in an axial symmetry mode. The first connecting ring and the second connecting ring are preliminarily connected through the threaded groove and the threaded ring, when the threaded ring makes contact with the bottom of the threaded groove, the clamping blocks are aligned with the corresponding clamping grooves, gas is pumped into the first connecting ring through the threaded pipe and the second gas inlet pipe, the second groove is filled with the gas bag through gas inflation, the pressing plate is extruded, and the pressing plate drives the connecting rod and the clamping blocks; the clamping blocks and the corresponding clamping grooves are clamped, the first connecting ring and the second connecting ring are fixed and limited, the situation that due to sliding of the first connecting ring and the second connecting ring, the pipeline falls off is avoided, sealing is conducted through the sealing plate and the air bag, and air is prevented from flowing out.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation ducts, in particular to a ventilation duct quick connection joint. Background Art

[0002] Ventilation ducts are metal or composite pipes used in ventilation and air-conditioning projects in industrial and civil buildings. They are a kind of municipal infrastructure for air circulation and reducing the concentration of harmful gases. Ducts are mainly used in industrial and construction projects. The main application areas include: dust-free workshop purification systems in the electronics industry, aseptic workshop purification systems for medicine and food, central air-conditioning systems in hotels, shopping malls, hospitals, factories and office buildings, exhaust ducts for dust removal, smoke exhaust, oil absorption, etc. for industrial pollution control, air supply ducts for industrial environment or workplace comfort, etc. Pipeline connections require the use of connector structures.

[0003] The existing connector structure is relatively simple, without an anti-slip structure. The stability of the connector after connecting the casing is poor, making it easy for the pipes to fall off, reducing the reliability of use. In addition, the existing connector generally uses a flange for connection, which is relatively troublesome to disassemble and assemble, wastes time, and reduces work efficiency.

[0004] Therefore, we propose a ventilation duct quick connection joint to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a ventilation duct quick-connect joint to solve the problems mentioned in the above background technology that the existing connector structure is relatively simple, no anti-slip structure is set, the connection between the connector and the sleeve is easy to fall off, and the connector is troublesome to disassemble and assemble, thereby reducing work efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ventilation duct quick-connect joint, comprising a connecting ring one and a connecting ring two, wherein one side of the connecting ring one is connected to the connecting pipe, and the other side of the connecting ring one is provided with a threaded groove and an annular groove, one side of the connecting ring two is provided with a threaded ring and a sealing ring, one side of the connecting ring two is axially symmetrically provided with a fixing block, the threaded groove is threadedly connected to the threaded ring, the fixing block and the sealing ring are both connected to the annular groove, a sealing mechanism is provided in the connecting ring one, and a clamping mechanism is provided in the connecting ring two.

[0007] Preferably, a clamping groove is axially symmetrically arranged in the annular groove, and an inclined surface is arranged on the inner wall side of the annular groove.

[0008] By adopting the above technical solution, the connecting ring 2 is fixed by the clamping groove, and the connecting ring 2 is conveniently connected to the connecting ring 1 by the inclined surface.

[0009] Preferably, the sealing mechanism includes an airbag, an air intake pipe one, an annular air groove, an air intake pipe two and a threaded tube, the airbag is axially symmetrically arranged on the inner wall side of the annular groove, the airbag is connected to one end of the corresponding air intake pipe one, and the other end of each air intake pipe one is connected to the annular air groove, the annular air groove is connected to one end of the air intake pipe two, and the other end of the air intake pipe two is connected to the threaded tube, and the threaded tube is arranged on the outside of the connecting ring one.

[0010] By adopting the above technical solution, the gas enters the annular gas groove through the threaded tube and the second air inlet pipe, and the gas enters the airbag through the first air inlet pipe.

[0011] Preferably, the airbag and the card slot are respectively arranged on two opposite sides of the annular groove.

[0012] By adopting the above technical solution, the airbag is not connected to the card slot.

[0013] Preferably, the locking mechanism includes a groove one, a connecting rod, a pressure plate and a clamping block, the fixed block is provided with a groove one, the connecting rod is movably connected in the groove one, and the two ends of the connecting rod are respectively fixedly connected with a pressure plate and a clamping block, the end of the clamping block in contact with the annular groove is provided with a cut angle, and the clamping block is clamped and connected with the corresponding clamping groove.

[0014] By adopting the above technical solution, the clamping block is engaged with the clamping slot to limit the position of the fixed block.

[0015] Preferably, the maximum diameter of the sealing ring matches the maximum diameter of the annular groove, a groove 2 is axially symmetrically arranged on the sealing ring, the pressure plate moves in the corresponding groove 2, the outer circumference of the pressure plate matches the inner wall circumference of the groove 2, and the internal size of the groove 2 matches the maximum external area of ​​the airbag.

[0016] By adopting the above technical solution, the airbag fills the second groove to seal it, and at the same time the airbag squeezes the pressure plate.

[0017] Preferably, the number of the groove 2, the block, the pressure plate, the connecting rod, the airbag and the card slot are the same.

[0018] By adopting the above technical solution, the airbag squeezes the pressure plate, and the pressure plate is engaged with the corresponding slot through the connecting rod with the clamping block.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows: a ventilation duct quick-connect joint preliminarily connects connecting ring one and connecting ring two through a threaded groove and a threaded ring; when the threaded ring contacts the bottom of the threaded groove, the clamping block is aligned with the corresponding clamping groove, and gas is pumped into connecting ring one through the threaded tube and the air inlet pipe two, the air bag is inflated to fill the groove two, and the pressing plate is squeezed, and the pressing plate drives the connecting rod and the clamping block, so that the clamping block is engaged with the corresponding clamping groove, fixing and limiting connecting ring one and connecting ring two, avoiding sliding of connecting ring one and connecting ring two and causing the pipe to fall off, and sealing is performed through the sealing plate and the air bag to avoid gas outflow.

[0020] 1. Connecting ring 1 and connecting ring 2 are preliminarily connected through the threaded groove and the threaded ring. When the threaded ring moves to the maximum distance, the outer wall of the sealing ring fits with the inner wall of the annular groove 2, and then the sealing cover on the outside of the threaded tube is rotated open, and the gas is sent into the annular gas groove through the threaded tube and the air inlet pipe 2, and then the gas is sent into the airbag through the air inlet pipe 1. The airbag expands to fill the entire groove 2, and the sealing ring and the airbag are sealed together to prevent gas leakage.

[0021] 2. When the airbag fills the entire groove 2, the airbag squeezes the pressure plate, and the pressure plate drives the card block to move through the connecting rod, so that the card block is engaged with the card slot, fixing and limiting the connecting ring 1 and the connecting ring 2 to avoid unstable connection between the connecting ring 1 and the connecting ring 2, which may cause the sleeve to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 , is a front sectional structural schematic diagram of the utility model;

[0023] Figure 2 、For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0024] Figure 3 , is a schematic diagram of a side sectional structure of a connecting ring of the utility model;

[0025] Figure 4 , is a schematic diagram of the cross-sectional structure of the second side of the connecting ring of the utility model;

[0026] Figure 5 , is a schematic diagram of the sealing mechanism structure of the utility model.

[0027] In the figure: 1. connecting ring 1; 2. connecting ring 2; 3. threaded groove; 4. threaded ring; 5. annular groove; 6. fixing block; 7. clamping groove; 8. air bag; 9. air intake pipe 1; 10. annular air groove; 11. air intake pipe 2; 12. threaded pipe; 13. groove 1; 14. connecting rod; 15. pressure plate; 16. clamping block; 17. sealing ring; 18. groove 2; 19. connecting pipe. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in 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 in 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.

[0029] See also Figure 1-5 The utility model provides a technical solution: In order to solve the problems mentioned in the above background technology that the existing connector has no anti-slip mechanism, the connection is not stable enough, the sleeve is easy to fall off, and the disassembly and assembly are more troublesome, which reduces the work efficiency, the following solution is disclosed, please refer to Figure 1-5 A ventilation duct quick connection joint includes a connection ring 1 and a connection ring 2, one side of the connection ring 1 is connected to a connection pipe 19, and the other side of the connection ring 1 is provided with a thread groove 3 and an annular groove 5, one side of the connection ring 2 is provided with a thread ring 4 and a sealing ring 17, one side of the connection ring 2 is axially symmetrically provided with a fixing block 6, the thread groove 3 is threadedly connected to the thread ring 4, the fixing block 6 and the sealing ring 17 are both connected to the annular groove 5, a sealing mechanism is provided in the connection ring 1, and the connection A snap-fit ​​mechanism is provided in the ring 2, a snap-fit ​​groove 7 is axially symmetrically provided in the annular groove 5, an inclined surface is provided on the inner wall side of the annular groove 5, a sealing mechanism comprises an airbag 8, an air intake pipe 1 9, an annular air groove 10, an air intake pipe 2 11 and a threaded tube 12, an airbag 8 is axially symmetrically provided on the inner wall side of the annular groove 5, the airbag 8 is connected to one end of the corresponding air intake pipe 1 9, and the other end of each air intake pipe 1 9 is connected to the annular air groove 10, the annular air groove 10 is connected to one end of the air intake pipe 2 11, and The other end of the intake pipe 11 is connected to the threaded tube 12, and the threaded tube 12 is arranged on the outside of the connecting ring 1. The airbag 8 and the card slot 7 are respectively arranged on two opposite sides of the annular groove 5. The clamping mechanism includes a groove 13, a connecting rod 14, a pressure plate 15 and a card block 16. The fixing block 6 is provided with a groove 13, and the groove 13 is movably connected with the connecting rod 14, and the two ends of the connecting rod 14 are respectively fixedly connected with the pressure plate 15 and the card block 16, and the end of the card block 16 that contacts the annular groove 5 is provided with A cut angle is set, the block 16 is engaged with the corresponding slot 7, the maximum diameter of the sealing ring 17 is consistent with the maximum diameter of the annular groove 5, the sealing ring 17 is axially symmetrically provided with a groove 18, the pressure plate 15 moves in the corresponding groove 18, the outer circumference of the pressure plate 15 is consistent with the inner wall circumference of the groove 18, the internal size of the groove 18 is consistent with the maximum external area of ​​the airbag 8, and the number of groove 18, block 16, pressure plate 15, connecting rod 14, airbag 8 and slot 7 are all the same.

[0030] Working principle: the connecting pipe 19 is connected to the ventilation pipe body, the connecting ring 1 and the connecting ring 2 are preliminarily connected through the threaded groove 3 and the threaded ring 4. When the threaded ring 4 moves to the maximum distance, the outer wall of the sealing ring 17 fits with the inner wall of the annular groove 5, and then the sealing cover on the outside of the threaded pipe 12 is rotated to send the gas into the annular gas groove 10 through the threaded pipe 12 and the air inlet pipe 2 11, and then send the gas into the air bag 8 through the air inlet pipe 1 9. The air bag 8 expands to fill the entire groove 2 18, and the sealing is performed by the cooperation of the sealing ring 17 and the air bag 8 to avoid gas leakage. When the air bag 8 fills the entire groove 2 18, the air bag 8 squeezes the pressure plate 15, and the pressure plate 15 drives the block 16 to move through the connecting rod 14, so that the block 16 is engaged and connected with the groove 7, and the connecting ring 1 and the connecting ring 2 are fixed and limited to avoid unstable connection between the connecting ring 1 and the connecting ring 2, which causes the sleeve to fall off.

[0031] 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 ventilation duct quick-connect joint, comprising a connecting ring 1 (1) and a connecting ring 2 (2), wherein one side of the connecting ring 1 (1) is connected to a connecting pipe (19), and the other side of the connecting ring 1 (1) is provided with a thread groove (3) and an annular groove (5), and one side of the connecting ring 2 (2) is provided with a thread ring (4) and a sealing ring (17), characterized in that: A fixing block (6) is axially symmetrically arranged on one side of the second connecting ring (2); the threaded groove (3) is threadedly connected to the threaded ring (4); the fixing block (6) and the sealing ring (17) are both connected to the annular groove (5); a sealing mechanism is arranged in the first connecting ring (1); and a locking mechanism is arranged in the second connecting ring (2).

2. A ventilation duct quick-connect joint according to claim 1, characterized in that: A clamping groove (7) is symmetrically arranged in the inner axis of the annular groove (5), and an inclined surface is arranged on the inner wall side surface of the annular groove (5).

3. A ventilation duct quick-connect joint according to claim 1, characterized in that: The sealing mechanism comprises an airbag (8), an air intake pipe 1 (9), an annular air groove (10), an air intake pipe 2 (11) and a threaded tube (12); the airbag (8) is axially symmetrically arranged on the inner wall side of the annular groove (5); the airbag (8) is connected to one end of the corresponding air intake pipe 1 (9), and the other end of each air intake pipe 1 (9) is connected to the annular air groove (10); the annular air groove (10) is connected to one end of the air intake pipe 2 (11), and the other end of the air intake pipe 2 (11) is connected to the threaded tube (12); the threaded tube (12) is arranged on the outer side of the connecting ring 1 (1).

4. A ventilation duct quick-connect joint according to claim 3, characterized in that: The airbag (8) and the clamping groove (7) are respectively arranged on two opposite sides of the annular groove (5).

5. A ventilation duct quick-connect joint according to claim 1, characterized in that: The locking mechanism comprises a groove one (13), a connecting rod (14), a pressure plate (15) and a clamping block (16); the fixing block (6) is provided with a groove one (13); the groove one (13) is movably connected with the connecting rod (14); the two ends of the connecting rod (14) are respectively fixedly connected with the pressure plate (15) and the clamping block (16); one end of the clamping block (16) in contact with the annular groove (5) is provided with a cut angle; the clamping block (16) is clamped and connected with the corresponding clamping groove (7).

6. A ventilation duct quick-connect joint according to claim 5, characterized in that: The maximum diameter of the sealing ring (17) matches the maximum diameter of the annular groove (5); a second groove (18) is axially symmetrically arranged on the sealing ring (17); the pressure plate (15) moves in the corresponding second groove (18); the outer circumference of the pressure plate (15) matches the inner wall circumference of the second groove (18); and the inner size of the second groove (18) matches the maximum outer area of ​​the airbag (8).

7. A ventilation duct quick-connect joint according to claim 6, characterized in that: The number of the second groove (18), the clamping block (16), the pressure plate (15), the connecting rod (14), the airbag (8) and the clamping slot (7) are all the same.

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