Connecting device for ventilation pipe and air port

Abstract

The utility model provides a connecting device for a ventilation pipe and an air port, belongs to the technical field of air pipe connection, and effectively solves the problem that an air pipe and an air port of a lower guide section cannot be accurately connected at present. According to the technical scheme, the device comprises a telescopic pipe, a first fixing plate and a second fixing plate, the first fixing plate is arranged at the upper end of the telescopic pipe, the second fixing plate is arranged at the lower end of the telescopic pipe, a first connecting piece is arranged on the upper surface of the first fixing plate and communicated with the upper end of the telescopic pipe, and a second connecting piece is arranged on the lower surface of the second fixing plate. The second connecting piece communicates with the lower end of the telescopic pipe, an adjusting rod is arranged between the first fixing plate and the second fixing plate in a penetrating mode, and pressing nuts are installed at the two ends of the adjusting rod through threads. The connecting device for the ventilation pipe and the air opening has the advantages that the connecting device for the ventilation pipe and the air opening can meet the requirement for connection under the dislocation condition.

Description

Technical Field

[0001] This utility model relates to the field of duct connection technology, and more specifically, to a connection device between a ventilation duct and an air outlet. Background Technology

[0002] Ventilation ducts are metal or composite pipes used in ventilation and air conditioning systems for industrial and civil buildings. They are ductwork designed to facilitate air circulation and increase indoor air circulation. During the installation of ventilation ducts, connecting devices are required to connect the ductwork to the air vents.

[0003] Currently, many building designs require that the connection between the duct and the air outlet in the ceiling be a rigid connection. Moreover, during construction, the duct and air outlet in the ceiling area are not installed synchronously, which often results in the inability to accurately connect the lower section of the duct and the air outlet. Therefore, it is necessary to design a connection device between the ventilation duct and the air outlet that can meet the connection requirements in case of misalignment. Utility Model Content

[0004] The purpose of this utility model is to provide a connection device between a ventilation duct and an air outlet, which can overcome the shortcomings of the prior art. By setting an adjusting rod including a fixed rod, a first rotating rod and a second rotating rod, and cooperating with a telescopic tube, it can ensure that the end of the connection device connected to the air outlet can move in four directions: front, back, left, and right, and can realize multi-directional misalignment connection.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a connection device between a ventilation pipe and an air outlet is provided, including a telescopic pipe, a first fixing plate and a second fixing plate. The upper end of the telescopic pipe is provided with the first fixing plate, and the lower end of the telescopic pipe is provided with the second fixing plate. The upper surface of the first fixing plate is provided with a first connecting member, which communicates with the upper end of the telescopic pipe. The lower surface of the second fixing plate is provided with a second connecting member, which communicates with the lower end of the telescopic pipe. Both the upper surface of the first fixing plate and the lower surface of the second fixing plate are provided with sealing grooves. An adjusting rod is provided through the first fixing plate and the second fixing plate. Both ends of the adjusting rod are threaded with clamping nuts, which contact the lower surface of the first fixing plate and the upper surface of the second fixing plate, respectively.

[0006] The adjusting rod includes a fixed rod, a first rotating rod, and a second rotating rod. The upper end of the fixed rod is fixedly connected to the lower surface of the first fixed plate. The upper end of the first rotating rod is movably connected to the lower end of the fixed rod. The lower end of the first rotating rod is movably connected to the upper end of the second rotating rod. The lower end of the second rotating rod is fixedly connected to the upper surface of the second fixed plate.

[0007] Preferably, the outer diameter of the first connector is equal to the inner diameter of the ventilation pipe to be connected, and a clearance fit is used;

[0008] The outer diameter of the second connector is equal to the inner diameter of the air outlet to be connected, and a clearance fit is used.

[0009] Preferably, the cross-sections of the telescopic tube, the first connector, and the second connector are all rectangular or square; preferably, the first connector includes a sound insulation layer, a reinforcement layer, and a heat insulation layer from the inside out; the telescopic tube and the second connector are the same as the first connector, both being three-layer structures.

[0010] Preferably, sealant is applied to the junctions of the first connector and the second connector with the first fixing plate and the second fixing plate, respectively, as well as to the junctions of the telescopic tube with the first connector and the second connector, respectively.

[0011] Preferably, the lower end face of the fixed rod is provided with a first U-shaped groove, and the upper end face of the first rotating rod is provided with a first locking block adapted to the first U-shaped groove. The first U-shaped groove and the first locking block are connected by a first bolt and a fastening nut.

[0012] The lower end face of the first rotating rod is provided with a second U-shaped groove, and the upper end face of the second rotating rod is provided with a second locking block adapted to the second U-shaped groove. The two U-shaped grooves and the second locking block are connected by a second bolt and a fastening nut. The opening directions of the first U-shaped groove and the U-shaped groove are perpendicular to each other.

[0013] Preferably, the inner wall of the sealing groove is provided with at least one set of grooves, and an elastic component is provided in the groove. The elastic component includes a spring and a third locking block. The third locking block is fixedly connected to the bottom of the groove by the spring, and the end of the third locking block that contacts the ventilation pipe or air outlet to be connected is arc-shaped.

[0014] Preferably, the inner surface of the sealing groove is flush with the outer surface of the first connector or the second connector.

[0015] Preferably, a sealing ring is provided on the upper surface of the first fixing plate and the lower surface of the second fixing plate, and the sealing ring is located on the outside of the sealing groove.

[0016] Preferably, there are four adjusting rods, which are symmetrically distributed at the four corners of the first fixing plate and the second fixing plate.

[0017] In practical use, this invention works as follows: When the ventilation duct opening is aligned with the air vent, no adjustment rod is needed; both the first and second rotating rods are naturally vertical and secured with fastening nuts. When the air vent is to the right or left of the ventilation duct opening, the first and second rotating rods are naturally vertical and secured with fastening nuts. The first rotating rod is then rotated to the left or right relative to the fixed rod to align the ventilation duct opening with the air vent before being secured with fastening nuts. When the air vent is in front of or behind the ventilation duct opening, the first rotating rod is naturally vertical and secured with fastening nuts to the fixed rod. The second rotating rod is then rotated forward or backward relative to the fixed rod to align the ventilation duct opening with the air vent before being secured with fastening nuts. Alternatively, depending on the situation, the first rotating rod can be rotated to a certain angle relative to the fixed rod and secured, and then the second rotating rod can be rotated to a certain angle relative to the fixed first rotating rod and secured, achieving staggered connections between the ventilation duct and the air vent in various directions.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. This utility model is equipped with an adjusting rod including a fixed rod, a first rotating rod and a second rotating rod, which, together with a telescopic tube, ensures that the end of the connecting device connected to the air outlet can move in four directions: front, back, left and right, enabling multi-directional misaligned connection;

[0020] 2. This utility model provides an elastic component in the sealing groove so that when the ventilation pipe or air outlet is inserted, the third locking block of the elastic component can lock it in place, increasing its firmness and stability.

[0021] 3. The first connector, the second connector, and the telescopic pipe in this device adopt a multi-layer structure, including an outer insulation layer, a middle reinforcement layer, and an inner sound insulation layer. With the addition of sound insulation and heat insulation materials, it has sound insulation and heat insulation effects and is widely used. Attached Figure Description

[0022] Figure 1 This is a front view of the connection device between the ventilation duct and the air outlet of this utility model;

[0023] Figure 2 This is a top view of the connection device between the ventilation pipe and the air outlet of this utility model;

[0024] Figure 3 for Figure 1 Enlarged view of part A;

[0025] Figure 4 for Figure 1 Enlarged view of section B;

[0026] Figure 5This is a schematic diagram of the sealing groove structure;

[0027] Figure 6 This is a schematic diagram of the layer structure of the first connector;

[0028] Among them, 1. First connecting piece, 2. First fixing plate, 3. Fixing rod, 4. Telescopic tube, 5. First rotating rod, 6. Second rotating rod, 7. Second fixing plate, 8. Sealing ring, 9. Second connecting piece, 10. Compression nut, 11. Adjusting rod, 12. Second bolt, 13. Second locking block, 14. Second U-shaped groove, 15. First U-shaped groove, 16. First bolt, 17. First locking block, 18. Sealing groove, 19. Groove, 20. Third locking block, 21. Spring, 101. Insulation layer, 102. Reinforcing layer, 103. Sound insulation layer. Detailed Implementation

[0029] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0030] See Figures 1 to 6 This utility model provides a connection device between a ventilation duct and an air outlet, including a telescopic pipe 4, a first fixing plate 2, and a second fixing plate 7. The first fixing plate 2 is provided at the upper end of the telescopic pipe 4, and the second fixing plate 7 is provided at the lower end of the telescopic pipe 4. A first connecting member 1 is provided on the upper surface of the first fixing plate 2, and the first connecting member 1 communicates with the upper end of the telescopic pipe 4. A second connecting member 9 is provided on the lower surface of the second fixing plate 7, and the second connecting member 9 communicates with the lower end of the telescopic pipe 4. Sealing grooves 18 are provided on the upper surface of the first fixing plate 2 and the lower surface of the second fixing plate 7. An adjusting rod 11 is provided through the first fixing plate 2 and the second fixing plate 7. Both ends of the adjusting rod 11 are threaded with clamping nuts 10, and the clamping nuts 10 are in contact with the lower surface of the first fixing plate 2 and the upper surface of the second fixing plate 7, respectively.

[0031] The adjusting rod 11 includes a fixed rod 3, a first rotating rod 5, and a second rotating rod 6. The upper end of the fixed rod 3 is fixedly connected to the lower surface of the first fixed plate 2. The upper end of the first rotating rod 5 is movably connected to the lower end of the fixed rod 3. The lower end of the first rotating rod 5 is movably connected to the upper end of the second rotating rod 6. The lower end of the second rotating rod 6 is fixedly connected to the upper surface of the second fixed plate 7.

[0032] In the above, the outer diameter of the first connector 1 is equal to the inner diameter of the ventilation pipe to be connected, and a clearance fit is used; and / or, the outer diameter of the second connector 9 is equal to the inner diameter of the air outlet to be connected, and a clearance fit is used.

[0033] In the above, the cross-sections of the telescopic tube 4, the first connector 1, and the second connector 9 are all rectangular; and the telescopic tube 4, the first connector 1, and the second connector 9 are all multi-layer structures, including a sound insulation layer 103, a reinforcement layer 102, and a heat insulation layer 101 from the inside out.

[0034] In the above, sealant is applied to the junctions of the first connector 1 and the second connector 9 with the first fixing plate 2 and the second fixing plate 7, respectively, as well as to the junctions of the telescopic tube 4 with the first connector 1 and the second connector 9, respectively.

[0035] In the above, the lower end face of the fixed rod 3 is provided with a first U-shaped groove 15, and the upper end face of the first rotating rod 5 is provided with a first locking block 17 adapted to the first U-shaped groove 15. The first U-shaped groove 15 and the first locking block 17 are connected by a first bolt 16 and a fastening nut. The lower end face of the first rotating rod 5 is provided with a second U-shaped groove 14, and the upper end face of the second rotating rod 6 is provided with a second locking block 13 adapted to the second U-shaped groove 14. The second U-shaped groove 14 and the second locking block 13 are connected by a second bolt 12 and a fastening nut. The opening directions of the first U-shaped groove 15 and the U-shaped groove 14 are perpendicular to each other.

[0036] In the above, the inner wall of the sealing groove 18 is provided with two sets of grooves 19 facing each other. An elastic component is provided in the groove 19. The elastic component includes a spring 21 and a third locking block 20. The third locking block 20 is fixedly connected to the bottom of the groove 19 by the spring 21. The end of the third locking block 20 that contacts the ventilation pipe or air outlet to be connected is arc-shaped.

[0037] In the above, the inner side of the sealing groove 18 is flush with the outer surface of the first connector 1 or the second connector 9.

[0038] In the above, sealing rings 8 are respectively provided on the upper surface of the first fixing plate 2 and the lower surface of the second fixing plate 7, and the sealing rings 8 are located on the outside of the sealing groove 18.

[0039] As described above, there are four adjusting rods 11, which are symmetrically distributed at the four corners of the first fixing plate 2 and the second fixing plate 7.

[0040] In actual use: Depending on the actual situation, when the ventilation duct opening is exactly aligned with the air vent, there is no need to adjust the adjusting rod. That is, both the first rotating rod 5 and the second rotating rod 6 are naturally vertical and secured with the fastening nut. When the air vent is located to the right or left of the ventilation duct opening, the first rotating rod 5 and the second rotating rod 6 are naturally vertical and secured with the fastening nut. After the first rotating rod 5 is rotated to the left or right relative to the fixed rod 3 to align the ventilation duct opening with the air vent, it is secured with the fastening nut. When the air vent is located in front of or in front of the ventilation duct opening... When the first rotating rod 5 is in a naturally vertical state, it is secured with the fixing rod 3 using a fastening nut. After the second rotating rod 6 is fixed relative to the first rotating rod 5 and the fixing rod 3, it is rotated forward or backward at a certain angle to align the ventilation pipe opening with the air outlet, and then secured with a fastening nut. Of course, depending on the actual situation, the first rotating rod 5 can be rotated relative to the fixing rod 3 at a certain angle and secured first, and then the second rotating rod 6 can be rotated relative to the first rotating rod 5 at a certain angle and secured, thus achieving a staggered connection between the ventilation pipe and the air outlet in various directions.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connection device for a ventilation duct and an air outlet, characterized in that, Includes a telescopic tube (4), a first fixing plate (2) and a second fixing plate (7). The upper end of the telescopic tube (4) is provided with the first fixing plate (2), and the lower end of the telescopic tube (4) is provided with the second fixing plate (7). The upper surface of the first fixing plate (2) is provided with a first connector (1), which communicates with the upper end of the telescopic tube (4). The lower surface of the second fixing plate (7) is provided with a second connector (9), which communicates with the lower end of the telescopic tube (4). Both the upper surface of the first fixing plate (2) and the lower surface of the second fixing plate (7) are provided with sealing grooves (18). An adjusting rod (11) is provided through the first fixing plate (2) and the second fixing plate (7). Both ends of the adjusting rod (11) are fitted with clamping nuts (10) by threads. The clamping nuts (10) are in contact with the lower surface of the first fixing plate (2) and the upper surface of the second fixing plate (7), respectively. The adjusting rod (11) includes a fixed rod (3), a first rotating rod (5), and a second rotating rod (6). The upper end of the fixed rod (3) is fixedly connected to the lower surface of the first fixed plate (2). The upper end of the first rotating rod (5) is movably connected to the lower end of the fixed rod (3). The lower end of the first rotating rod (5) is movably connected to the upper end of the second rotating rod (6). The lower end of the second rotating rod (6) is fixedly connected to the upper surface of the second fixed plate (7).

2. The connection device between the ventilation duct and the air outlet according to claim 1, characterized in that, The outer diameter of the first connector (1) is equal to the inner diameter of the ventilation pipe to be connected, and a clearance fit is used. The outer diameter of the second connector (9) is equal to the inner diameter of the air outlet to be connected, and a clearance fit is used.

3. The connection device between the ventilation duct and the air outlet according to claim 1, characterized in that, The cross-sections of the telescopic tube (4), the first connector (1), and the second connector (9) are all rectangular or square; The first connector (1) includes, from the inside out, a sound insulation layer (103), a reinforcing layer (102), and a heat insulation layer (101).

4. The connection device between the ventilation duct and the air outlet according to claim 1, characterized in that, Sealant is applied to the junctions of the first connector (1), the second connector (9) with the first fixing plate (2), the second fixing plate (7) respectively, and the junctions of the telescopic tube (4) with the first connector (1) and the second connector (9) respectively.

5. The connection device between the ventilation duct and the air outlet according to claim 1, characterized in that, The lower end face of the fixed rod (3) is provided with a first U-shaped groove (15), and the upper end face of the first rotating rod (5) is provided with a first locking block (17) adapted to the first U-shaped groove (15). The first U-shaped groove (15) and the first locking block (17) are connected by a first bolt (16) and a fastening nut. The lower end face of the first rotating rod (5) is provided with a second U-shaped groove (14), and the upper end face of the second rotating rod (6) is provided with a second locking block (13) that is adapted to the second U-shaped groove (14). The second U-shaped groove (14) and the second locking block (13) are connected by a second bolt (12) and a fastening nut. The opening directions of the first U-shaped groove (15) and the second U-shaped groove (14) are perpendicular to each other.

6. The connection device between the ventilation duct and the air outlet according to claim 1, characterized in that, The inner wall of the sealing groove (18) is provided with at least one set of grooves (19), and an elastic component is provided in the groove (19). The elastic component includes a spring (21) and a third locking block (20). The third locking block (20) is fixedly connected to the bottom of the groove (19) by the spring (21). The end of the third locking block (20) that contacts the ventilation pipe or air outlet to be connected is arc-shaped.

7. The connection device between the ventilation duct and the air outlet according to claim 1, characterized in that, The inner side of the sealing groove (18) is flush with the outer surface of the first connector (1) or the second connector (9).

8. The connection device between the ventilation duct and the air outlet according to claim 1, characterized in that, A sealing ring (8) is provided on the upper surface of the first fixing plate (2) and the lower surface of the second fixing plate (7), and the sealing ring (8) is located on the outside of the sealing groove (18).

9. The connection device between the ventilation duct and the air outlet according to claim 1, characterized in that, There are four adjusting rods (11), which are symmetrically distributed at the four corners of the first fixing plate (2) and the second fixing plate (7).

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