Connecting device for heating and ventilation pipe

Abstract

The utility model provides a connecting device for a heating and ventilation pipe. Belongs to the technical field of heating and ventilation engineering application. According to the technical key points, two first mounting grooves which are formed in a spaced mode are formed in the top of a mounting base, a second mounting groove located between the two first mounting grooves is formed in the mounting base, threaded rods are rotationally connected into the two first mounting grooves, one end of each threaded rod extends into the second mounting groove, and the other end of each threaded rod extends into the second mounting groove. A driving assembly in linkage connection with the threaded rod is arranged in the second mounting groove, a moving block matched with the first mounting groove is in threaded connection with the threaded rod, a moving plate is fixedly connected to the top of the moving block, and a U-shaped clamping groove matched with the heating and ventilation pipe is formed in one side of the moving plate in the horizontal direction; a U-shaped slot matched with the fixing ring is formed in the U-shaped clamping groove; the utility model aims to provide a connecting device for a heating and ventilation pipe. The heating and ventilation pipe is used for solving the problem of air leakage caused by untight installation at the joint of an existing heating and ventilation pipe in use.

Description

Technical Field

[0001] The utility model relates to the technical field of HVAC engineering applications, in particular to a HVAC pipe connection device. Background Art

[0002] HVAC pipes are used as the main pipelines for air transportation. The thickness and specifications of HVAC pipes can be changed according to requirements. Usually, when connecting, both ends of the air ducts are always connected to accessories (such as elbows and reducers). Generally, there are no grooves at both ends of HVAC pipes and they are equipped with sealing rings. HVAC pipes are widely used. Purification system return air ducts, central air conditioning ventilation ducts, industrial supply and exhaust ventilation ducts, environmental protection system suction and exhaust ducts, mining gas extraction pipes, mining rubber cloth air ducts, etc.

[0003] Currently, the joints of HVAC pipes are easily not installed tightly during use, resulting in air leakage, making subsequent maintenance work difficult and affecting the normal use of the HVAC pipes. Sealing rings are usually used to seal the joints. Long-term use can easily cause the HVAC pipe joints to loosen and cause air leakage problems, reducing the service life of the HVAC pipes. Utility Model Content

[0004] The purpose of the utility model is to provide a HVAC pipe connection device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A HVAC pipe connection device comprises two HVAC pipes butted together, the two HVAC pipes are fixedly connected with a fixing ring, mounting seats are arranged at intervals at the bottom of the two HVAC pipes, a fixing block located directly below the butt joint of the two HVAC pipes is fixedly connected to the top of the mounting seat, a fixed arc clamping plate is fixedly connected to the top of the fixing block, a movable arc clamping plate is hinged on the fixed arc clamping plate, the two HVAC pipes are located between the fixed arc clamping plate and the movable arc clamping plate, a fixing plate is fixedly connected to the opposite sides of the hinged ends of the fixed arc clamping plate and the movable arc clamping plate, and a plurality of fixing bolts are passed through the two fixing plates;

[0007] Two first mounting grooves are arranged at an interval on the top of the mounting seat, and the two first mounting grooves are respectively located on both sides of the fixed block, and a second mounting groove is provided inside the mounting seat and located between the two first mounting grooves, and the second mounting groove is located directly below the fixed block, and threaded rods are rotatably connected in the two first mounting grooves, one end of the threaded rods extends into the second mounting groove, and a driving assembly linked to the threaded rods is provided in the second mounting groove, and a moving block adapted to the first mounting groove is threadedly connected to the threaded rod, and a moving plate is fixedly connected to the top of the moving block, and a U-shaped groove adapted to the HVAC pipe is provided on one side of the moving plate in a horizontal direction, and a U-shaped slot adapted to the fixing ring is provided in the U-shaped groove.

[0008] As a further solution of the utility model: the butt end of one of the HVAC pipes is fixedly connected with an annular insert, the butt end of the other HVAC pipe is provided with an annular slot matched with the annular insert, and a sealing ring is fixedly connected in the annular slot.

[0009] As a further solution of the utility model: the clamping surfaces of the fixed arc-shaped clamping plate and the movable arc-shaped clamping plate are both fixedly connected with flexible pads.

[0010] As a further solution of the utility model: the driving assembly includes a first gear arranged in the second mounting groove and fixedly connected to the threaded rod, a second gear is arranged in the second mounting groove and meshed with the two first gears at the same time, the second gear is rotatably connected to the second mounting groove through a rotating shaft, and the other end of the rotating shaft passes through the mounting seat and is fixedly connected to a rotating handle located on the outside of the mounting seat.

[0011] As a further solution of the utility model: a guiding inclined surface is provided on the top of the U-shaped slot.

[0012] As a further solution of the utility model: two installation blocks distributed at intervals are fixedly connected to both sides of the top of the installation seat, a reinforcing rod is fixedly connected between the two installation blocks along the length direction of the installation seat, and the reinforcing rod is slidably connected to the movable plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] After the utility model adopts the above structure, through the cooperation of the moving plate, U-shaped slot, fixing ring, moving block, threaded rod, driving assembly, fixed arc splint and movable arc splint, when connecting the HVAC pipes, the fixing rings on the two HVAC pipes are respectively inserted into the corresponding U-shaped slots, and then the driving assembly drives the threaded rod to rotate, driving the moving blocks and the moving plate on both sides to drive the HVAC pipes to move toward the middle together for docking and tightening, thereby avoiding the problem of loosening of the HVAC pipe connection due to long-term use, and then the connection is fixed by the cooperation of the fixed arc splint and the movable arc splint, so that the connection is tightly installed to avoid air leakage, thereby increasing the service life of the HVAC pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below in conjunction with the embodiments in the accompanying drawings, but this does not constitute any limitation to the present invention.

[0016] Figure 1 The present invention is a schematic diagram of the main structure of a HVAC pipe connection device.

[0017] Figure 2 The present invention is a schematic diagram of the structure of a flexible pad in a HVAC pipe connection device.

[0018] Figure 3 The present invention is a schematic diagram of the structure of a driving component in a HVAC pipe connection device.

[0019] In the figure: 1. HVAC pipe; 2. fixing ring; 3. mounting seat; 4. fixing block; 5. fixed arc splint; 6. movable arc splint; 7. fixing plate; 8. fixing bolt; 9. first mounting groove; 10. second mounting groove; 11. threaded rod; 12. driving assembly; 1201. first gear; 1202. second gear; 1203. rotating handle; 13. moving block; 14. moving plate; 15. U-shaped slot; 16. U-shaped slot; 17. annular insert; 18. annular slot; 19. sealing ring; 20. flexible pad; 21. guide ramp; 22. mounting block; 23. reinforcing rod. DETAILED DESCRIPTION

[0020] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0021] See also Figure 1-3A HVAC pipe connection device comprises two HVAC pipes 1 which are butt-jointed, and the two HVAC pipes 1 are both fixedly connected with a fixing ring 2. A mounting seat 3 is arranged at intervals at the bottom of the two HVAC pipes 1 for mounting and fixing the HVAC pipe 1. A fixing block 4 located directly below the butt joint of the two HVAC pipes 1 is fixedly connected to the top of the mounting seat 3, and a fixed arc splint 5 is fixedly connected to the top of the fixing block 4. A movable arc splint 6 is hinged on the fixed arc splint 5. The two HVAC pipes 1 are located between the fixed arc splint 5 and the movable arc splint 6. A fixing plate 7 is fixedly connected to the opposite sides of the hinged ends of the fixed arc splint 5 and the movable arc splint 6. A plurality of fixing bolts 8 are passed between the two fixing plates 7. The connection of the HVAC pipe 1 is clamped and fixed by the cooperation between the fixed arc splint 5, the movable arc splint 6 and the fixing bolts 8. Two first mounting grooves 9 are arranged at intervals on the top of the mounting seat 3, and the two first mounting grooves 9 are respectively located on both sides of the fixed block 4. A second mounting groove 10 is arranged inside the mounting seat 3 and is located between the two first mounting grooves 9. The second mounting groove 10 is located directly below the fixed block 4. Threaded rods 11 are rotatably connected in the two first mounting grooves 9. The two threaded rods 11 are symmetrically arranged, and one end of the threaded rod 11 extends into the second mounting groove 10. A driving assembly 12 linked to the threaded rod 11 is arranged in the second mounting groove 10, and the driving assembly 12 is used to drive the threaded rods 11 on both sides to rotate. A moving block 13 adapted to the first mounting groove 9 is threadedly connected to the threaded rod 11, and a moving plate 14 is fixedly connected to the top of the moving block 13. When the two threaded rods 11 rotate, the moving blocks 13 on both sides are driven to move relative or oppositely. A U-shaped groove 15 adapted to the HVAC pipe 1 is provided in the horizontal direction on one side of the moving plate 14, and a U-shaped slot 16 adapted to the fixing ring 2 is provided in the U-shaped slot 15, and the fixing ring 2 is movably inserted in the U-shaped slot 16.

[0022] Furthermore, a ring-shaped insert 17 is fixedly connected to the butt end of one of the HVAC pipes 1, and a ring-shaped slot 18 matching the ring-shaped insert 17 is opened at the butt end of the other HVAC pipe 1, and a sealing ring 19 is fixedly connected in the ring-shaped slot 18 to seal the connection between the two HVAC pipes 1 to prevent air leakage.

[0023] Furthermore, the clamping surfaces of the fixed arc clamping plate 5 and the movable arc clamping plate 6 are fixedly connected with a flexible pad 20, which can prevent the fixed arc clamping plate 5 and the movable arc clamping plate 6 from causing damage to the outer wall of the HVAC pipe 1 during the clamping process.

[0024] Furthermore, the driving assembly 12 includes a first gear 1201 arranged in the second mounting groove 10 and fixedly connected to the threaded rod 11, a second gear 1202 is arranged in the second mounting groove 10 and meshed with the two first gears 1201 at the same time, the second gear 1202 is rotatably connected to the second mounting groove 10 through a rotating shaft, the other end of the rotating shaft passes through the mounting seat 3 and is fixedly connected to a rotating handle 1203 located on the outside of the mounting seat 3, and rotating the rotating handle 1203 drives the second gear 1202 to rotate through the rotating shaft, and at the same time drives the two first gears 1201 to drive the threaded rod 11 to rotate.

[0025] Furthermore, a guiding inclined surface 21 is provided on the top of the U-shaped slot 16 to facilitate the insertion of the fixing ring 2 into the U-shaped slot 16 .

[0026] Furthermore, two installation blocks 22 distributed at intervals are fixedly connected to both sides of the top of the mounting seat 3, and a reinforcing rod 23 is fixedly connected between the two installation blocks 22 along the length direction of the mounting seat 3. The reinforcing rod 23 is slidably connected to the movable plate 14. By setting the reinforcing rod 23, the movable plate 14 is more stable during the movement.

[0027] When in use, the fixing rings 2 on the two HVAC pipes 1 are respectively inserted into the corresponding U-shaped slots 16, and then the second gear 1202 is driven to rotate by turning the rotating handle 1203, and the two first gears 1201 are driven to drive the threaded rod 11 to rotate. When the threaded rod 11 rotates, the moving blocks 13 and the moving plates 14 on both sides will drive the HVAC pipes 1 to move toward the middle at the same time for docking and tightening, and then the connection is further fixed by the cooperation of the fixed arc clamping plate 5 and the movable arc clamping plate 6.

[0028] The above embodiments are preferred implementation modes of the present invention and are only used to facilitate the explanation of the present invention. They are not intended to limit the present invention in any form. Any person with ordinary knowledge in the relevant technical field, if they do not depart from the scope of the technical features of the present invention, can make equivalent embodiments by partial changes or modifications to the technical contents disclosed in the present invention, and they still fall within the scope of the technical features of the present invention without departing from the technical features of the present invention.

Claims

1. A HVAC pipe connection device, comprising two HVAC pipes (1) butted together, characterized in that: The two HVAC pipes (1) are fixedly connected with a fixing ring (2), a mounting seat (3) is arranged at intervals at the bottom of the two HVAC pipes (1), a fixing block (4) located directly below the joint of the two HVAC pipes (1) is fixedly connected to the top of the mounting seat (3), a fixed arc-shaped clamping plate (5) is fixedly connected to the top of the fixing block (4), a movable arc-shaped clamping plate (6) is hinged on the fixed arc-shaped clamping plate (5), the two HVAC pipes (1) are located between the fixed arc-shaped clamping plate (5) and the movable arc-shaped clamping plate (6), a fixing plate (7) is fixedly connected on the opposite sides of the hinged ends of the fixed arc-shaped clamping plate (5) and the movable arc-shaped clamping plate (6), and a plurality of fixing bolts (8) are passed through the two fixing plates (7); Two first mounting grooves (9) are provided at intervals on the top of the mounting seat (3), the two first mounting grooves (9) are respectively located on both sides of the fixing block (4), a second mounting groove (10) is provided inside the mounting seat (3) and is located between the two first mounting grooves (9), the second mounting groove (10) is located directly below the fixing block (4), and a threaded rod (11) is rotatably connected in the two first mounting grooves (9), one end of the threaded rod (11) extends to the second mounting groove (10). A driving assembly (12) linked to the threaded rod (11) is arranged in the second installation groove (10); a moving block (13) matched with the first installation groove (9) is threadedly connected to the threaded rod (11); a moving plate (14) is fixedly connected to the top of the moving block (13); a U-shaped groove (15) matched with the HVAC pipe (1) is provided in a horizontal direction on one side of the moving plate (14); and a U-shaped slot (16) matched with the fixing ring (2) is provided in the U-shaped groove (15).

2. A HVAC pipe connection device according to claim 1, characterized in that: The butt end of one of the HVAC pipes (1) is fixedly connected to an annular insert pipe (17), and the butt end of the other HVAC pipe (1) is provided with an annular slot (18) adapted to the annular insert pipe (17), and a sealing ring (19) is fixedly connected in the annular slot (18).

3. A HVAC pipe connection device according to claim 1, characterized in that: The clamping surfaces of the fixed arc-shaped clamping plate (5) and the movable arc-shaped clamping plate (6) are both fixedly connected with a flexible pad (20).

4. A HVAC pipe connection device according to claim 1, characterized in that: The driving assembly (12) comprises a first gear (1201) arranged in the second mounting groove (10) and fixedly connected to the threaded rod (11); a second gear (1202) is arranged in the second mounting groove (10) and is meshedly connected to the two first gears (1201); the second gear (1202) is rotationally connected to the second mounting groove (10) via a rotating shaft; the other end of the rotating shaft passes through the mounting seat (3) and is fixedly connected to a rotating handle (1203) located outside the mounting seat (3).

5. A HVAC pipe connection device according to claim 1, characterized in that: A guiding inclined surface (21) is provided on the top of the U-shaped slot (16).

6. A HVAC pipe connection device according to claim 1, characterized in that: Two spaced-apart mounting blocks (22) are fixedly connected to both sides of the top of the mounting seat (3); a reinforcing rod (23) is fixedly connected between the two mounting blocks (22) along the length direction of the mounting seat (3); and the reinforcing rod (23) is slidably connected to the movable plate (14).

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