Building heating and ventilation pipeline connecting device

Abstract

The utility model relates to the technical field of heating and ventilation pipelines, in particular to a building heating and ventilation pipeline connecting device which comprises a clamping piece and a fixing assembly, the clamping piece is installed on two heating and ventilation pipeline bodies arranged in parallel, the clamping piece is composed of a first ring body and a second ring body, and the first ring body and the second ring body are arranged on the two heating and ventilation pipeline bodies in a sleeved mode respectively. The fixing assembly is connected to the first ring body and comprises a rotating plate, a first ratchet plate, a locking piece and a clamping piece, and the rotating assembly is connected with the first ring body and the second ring body. According to the clamping device, heating and ventilation pipeline bodies of different sizes can be clamped and fixed through the fixing assembly, after clamping and fixing are completed, the rotating assembly used for connecting the first ring body and the second ring body is also arranged on the outer side of the heating and ventilation pipeline body in a sleeving mode, and the rotating rod and the rolling wheel can rotate with the central axis of the first ring body as the circle center; the fixing assembly can keep a fixed state all the time to avoid external force or displacement of the heating and ventilation pipeline body.

Description

Technical Field

[0001] This utility model relates to the field of HVAC piping technology, specifically to a building HVAC piping connection device. Background Technology

[0002] HVAC ducts have a wide range of applications, including supply and return air ducts for purification systems, ventilation ducts for central air conditioning, supply and exhaust air ducts for industrial systems, intake and exhaust air ducts for environmental protection systems, gas extraction pipes for mines, and coated fabric ventilation ducts for mines. The thickness and specifications of HVAC ducts can be varied according to requirements, and they are usually laid and connected together during building construction.

[0003] Chinese Patent No. CN221247580U discloses a sealing connection device for building HVAC pipes, relating to the field of pipe connection technology. It includes two clamping components respectively fitted onto different HVAC pipes, with a common rotating component mounted on each clamping component. The two clamping components can quickly align the two welded ends of the HVAC pipes; the rotating component can quickly and fully weld the butt joints of the HVAC pipes in one go. The clamping components include a detachable upper ring plate and a lower ring plate, both semi-circular, with three evenly distributed limiting wheels that rotate synchronously towards their axes. This invention solves the problem that existing building HVAC pipe sealing connection devices require adjusting a large number of threaded rods when adjusting the butt joint angle, resulting in a cumbersome adjustment process and long alignment cycle; the welding of HVAC pipes requires spot welding for fixation before full welding, which is a complex process and reduces welding efficiency.

[0004] However, in the above technical solution, the welding position can only be adjusted by rotating the component to quickly and fully weld the joint of the HVAC pipe in one go. However, when the HVAC pipe moves along the central axis, the limiting wheel on the clamping component has limited effect on restricting the movement of the pipe. Utility Model Content

[0005] The purpose of this utility model is to address the problems existing in the background technology by proposing a building heating, ventilation and air conditioning (HVAC) pipe connection device.

[0006] The technical solution of this utility model is as follows: A building heating and ventilation pipe connection device includes a clamping component, which is installed on two parallel heating and ventilation pipe bodies. The clamping component consists of a first ring and a second ring, which are respectively sleeved on the two heating and ventilation pipe bodies. A fixing component is connected to the first ring and includes a rotating plate, a first ratchet plate, a locking component, and a clamping component. The rotating plate is connected to the first ring and has multiple adjusting grooves. The first ratchet plate is connected to the rotating plate. The locking component is connected to the first ring and engages with the first ratchet plate. Multiple clamping components are used. The holding member is connected to the first ring body, and the clamping member is slidably connected to the adjusting groove. When the fixed assembly is in use, the adjusting groove moves and pushes the clamping member to move towards the center of the pipe when the rotating plate rotates. The first ratchet plate engages with the locking member to restrict the rotating plate from reversing. The rotating assembly is connected to the first ring body and the second ring body. The rotating assembly includes a sliding rail, rotating rods and rollers. The sliding rail is connected to the opposite side of the first ring body and the second ring body. The rollers are connected to the ends of multiple connecting rods. The rollers are slidably connected to the sliding rail. When the rotating assembly is in use, the multiple rotating rods maintain a distance and roll synchronously along the sliding rail with the rollers.

[0007] Preferably, the first ring body and the second ring body have the same structure. The first ring body is composed of a first half ring and a second half ring. The first half ring and the second half ring have the same structure. The first half ring and the second half ring are rotatably connected at one end and detachably connected at the other end.

[0008] Preferably, the fixing component includes an adjusting rod connected to the rotating plate, and a sliding groove for the adjusting rod is provided on the first half-ring.

[0009] Preferably, the clamping member consists of a movable rod, a clamping rod, and a first elastic member. The movable rod is slidably connected to a through hole in the first half-ring. One end of the movable rod away from the first half-ring is connected to the clamping rod, and the other end of the movable rod is slidably connected to the adjusting groove. The first elastic member is sleeved on the movable rod.

[0010] Preferably, the locking element consists of a second ratchet plate, a second elastic element, and a pull rod. One end of the pull rod is connected to the second ratchet plate, and the pull rod itself has a limit block. The second elastic element is sleeved on the outside of the pull rod and is located between the second ratchet plate and the first half-ring.

[0011] Preferably, the sliding track consists of two identical arc-shaped tracks at both ends, with the two arc-shaped tracks corresponding to the first and second semi-rings.

[0012] Preferably, the two ends of the multiple rotating rods are connected to a connecting frame, which divides the multiple rotating rods into two parts corresponding to two arc-shaped tracks.

[0013] Preferably, the rotating assembly further includes a limiting bolt, which is rotatably connected to the arc-shaped track, and the limiting bolt is threadedly connected to a locking block.

[0014] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0015] In this invention, the fixing component can clamp and fix the HVAC pipe body of different volumes. After the clamping and fixing is completed, the rotating component for connecting the first ring body and the second ring body is also sleeved on the outside of the HVAC pipe body. The rotating rod and roller can rotate around the central axis of the first ring body. The fixing component can always maintain a fixed state to prevent external force or displacement of the HVAC pipe body. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a schematic diagram of the fixed component structure;

[0018] Figure 3 for Figure 2 Enlarged view of the structure at point A;

[0019] Figure 4 This is a cross-sectional view of the rotating assembly;

[0020] Figure 5 for Figure 4 Enlarged view of the structure at point B.

[0021] Reference numerals: 1. Clamping element; 2. Main body of HVAC pipe; 3. First ring body; 4. Second ring body; 5. Rotating plate; 6. First ratchet plate; 7. Locking element; 8. Clamping element; 9. Adjusting groove; 10. Sliding rail; 11. Rotating rod; 12. Roller; 13. First half ring; 14. Second half ring; 15. Adjusting rod; 16. Moving rod; 17. Clamping rod; 18. First elastic element; 19. Second ratchet plate; 20. Second elastic element; 21. Pull rod; 22. Arc-shaped rail; 23. Connecting frame; 24. Limiting bolt; 25. Locking block. Detailed Implementation

[0022] Example 1

[0023] like Figures 1-5As shown, this utility model proposes a building HVAC duct connection device, including a clamping component 1 and a fixing component. The clamping component 1 is installed on two parallel HVAC duct bodies 2 and consists of a first ring 3 and a second ring 4, which are respectively sleeved on the two HVAC duct bodies 2. The fixing component is connected to the first ring 3 and includes a rotating plate 5, a first ratchet plate 6, a locking component 7, and clamping components 8. The rotating plate 5 is connected inside the first ring 3 and has multiple adjusting grooves 9. The first ratchet plate 6 is connected to the rotating plate 5. The locking component 7 is connected to the first ring 3 and engages with the first ratchet plate 6. Multiple clamping components 8 are connected to the first ring 3 and are slidably connected to the adjusting grooves 9. When the fixing component is in use, the adjusting grooves 9 move when the rotating plate 5 rotates, pushing the clamping components 8 towards the center of the duct. The first ratchet plate 6 engages with the locking component 7 to prevent the rotating plate 5 from reversing.

[0024] The rotating assembly is connected to the first ring body 3 and the second ring body 4. The rotating assembly includes a sliding rail 10, rotating rods 11 and rollers 12. The sliding rail 10 is connected to the opposite side of the first ring body 3 and the second ring body 4. The two ends of the multiple connecting rods are connected to the rollers 12, and the rollers 12 are slidably connected to the sliding rail 10. When the rotating assembly is in use, the multiple rotating rods 11 maintain a distance and roll synchronously along the sliding rail 10 with the rollers 12.

[0025] In an optional embodiment, the first ring body 3 and the second ring body 4 have the same structure. The first ring body 3 is composed of a first half ring 13 and a second half ring 14. The first half ring 13 and the second half ring 14 have the same structure. The first half ring 13 and the second half ring 14 are hinged and rotatably connected at one end, and the other end of the first half ring 13 and the second half ring 14 are detachably connected. The other end of the first half ring 13 and the second half ring 14 has a protruding plate, and the two protruding plates are connected by bolts.

[0026] Example 2

[0027] like Figures 2-3 As shown, the present invention proposes a building heating and ventilation pipe connection device. Compared with the first embodiment, this embodiment describes the detailed structure of the fixing component. The fixing component includes an adjusting rod 15 connected to the rotating plate 5, and a sliding groove for the adjusting rod 15 is provided on the first half ring 13.

[0028] In an optional embodiment, the clamping member 8 consists of a moving rod 16, a clamping rod 17, and a first elastic member 18. The moving rod 16 is slidably connected to a through hole in the first half-ring 13. One end of the moving rod 16 away from the first half-ring 13 is connected to the clamping rod 17, and the other end of the moving rod 16 is slidably connected to the adjusting groove 9. The first elastic member 18 is sleeved on the moving rod 16. The first elastic member 18 is selected from, but is not limited to, a spring.

[0029] In an optional embodiment, the locking member 7 consists of a second ratchet plate 19, a second elastic member 20, and a pull rod 21. One end of the pull rod 21 is connected to the second ratchet plate 19. The pull rod 21 itself has a limit block. The second elastic member 20 is sleeved on the outside of the pull rod 21 and is disposed between the second ratchet plate 19 and the first half ring 13. The second elastic member 20 is selected from, but is not limited to, a tower spring.

[0030] In an optional embodiment, the multiple rotating rods are connected to two ends by a connecting frame 23, which divides the multiple rotating rods 11 into two parts corresponding to two arc-shaped tracks 22.

[0031] Example 2

[0032] like Figures 4-5 As shown, the present invention proposes a building HVAC pipe connection device. Compared with Embodiment 1, this embodiment describes the detailed structure of the rotating component. The rotating component also includes a limiting bolt 24, which is rotatably connected to the arc-shaped track 22. The limiting bolt 24 is threadedly connected to a locking block 25. The arc-shaped track 22 has a groove for accommodating the locking block 25.

[0033] In an optional embodiment, the sliding track 10 consists of two identical arc-shaped tracks 22, which correspond to the first semi-ring 13 and the second semi-ring 14.

[0034] In summary, when using this utility model, the first half-ring 13 and the second half-ring 14 are rotatably fitted onto the two HVAC pipe bodies 2 to be connected. They are then connected to form a first ring body 3 and a second ring body 4 by bolts on the protruding plates at the same end of the first half-ring 13 and the second half-ring 14. The arc-shaped track 22 between them, driven by the first half-ring 13 and the second half-ring 14, also forms a circular sliding track 10. Then, the operator tightens the limiting bolt 24 to retract the locking block 25 into the groove on the inner wall of the arc-shaped track 22. At this point, the locking block 25 loses its restriction on the roller 12, and the rotating rod 11 can move via the connecting frame 23. When the operator pulls the adjusting rod 15, it causes the rotating plate 5 to rotate within the first half-ring 13. The adjusting groove 9 on the rotating plate 5 is triangular in shape, and its movement... This causes the clamping member 8, which is in contact with its inclined side, to be driven. As the rotating plate 5 rotates, the adjusting groove 9 pushes the moving rod 16 to move towards the HVAC pipe body 2, so that the clamping rod 17 clamps the HVAC pipe body 2 and stretches the length of the first elastic member 18. The components on the second half ring 14 move synchronously to fix them. When the rotating plate 5 rotates, the first ratchet plate 6 at one end also moves. The first ratchet plate 6 pushes the second ratchet plate 19 to compress the length of the second elastic member 20. When the first ratchet plate 6 stops moving, the second elastic member 20 pushes the second ratchet plate 19 close to the first ratchet plate 6 to engage and restrict the movement of the rotating plate 5, maintaining the clamping state of the clamping rod 17. After the clamping and fixing are completed, the operator can push the connecting frame 23 to rotate the rotating rod 11 to perform welding or connection operations.

[0035] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A building heating, ventilation, and air conditioning duct connection device, characterized by, The utility model relates to a kind of heating pipe clamp, including Clamping piece (1) is installed on two parallel heating pipe bodies, and clamping piece (1) is composed of first ring body (3) and second ring body (4), and first ring body (3) and second ring body (4) are respectively sleeved on two heating pipe bodies; Fixed assembly is connected on first ring body (3), and fixed assembly includes rotating plate (5), first ratchet plate (6), locking piece (7) and clamping piece (8), rotating plate (5) is connected in first ring body (3), a plurality of adjusting grooves (9) are set on rotating plate (5), rotating plate (5) is connected with first ratchet plate (6), locking piece (7) is connected on first ring body (3), first ratchet plate (6) is engaged with locking piece (7), and a plurality of clamping pieces (8) are connected on first ring body (3), and clamping piece (8) is slidably connected with adjusting groove (9);In the use state of fixed assembly, adjusting groove (9) moves and pushes clamping piece (8) to move to the direction of pipe center when rotating plate (5) rotates, and first ratchet plate (6) is engaged with locking piece (7) to limit rotating plate (5) reverse; Rotating assembly is connected with first ring body (3) and second ring body (4), and rotating assembly includes sliding track (10), rotating rod (11) and gyro wheel (12), sliding track (10) is connected on the side of first ring body (3) and second ring body (4) facing each other, a plurality of connecting rods are connected with gyro wheel (12) at both ends, and gyro wheel (12) is slidably connected with sliding track (10);In the use state of rotating assembly, a plurality of rotating rods (11) keep interval synchronous and roll along sliding track (10) with gyro wheel (12).

2. A building heating and ventilating duct connecting device according to claim 1, wherein First ring body (3) and second ring body (4) are same structure, and first ring body (3) is composed of first half ring (13) and second half ring (14), and first half ring (13) and second half ring (14) are same structure, and first half ring (13) and second half ring (14) are rotatably connected at one end, and first half ring (13) and second half ring (14) are detachably connected at the other end.

3. A building heating and ventilating duct connecting device according to claim 1, wherein Fixed assembly includes Adjusting rod (15) is connected on rotating plate (5), and sliding slot is set on first half ring (13) through adjusting rod (15).

4. A building heating and ventilating duct connecting device according to claim 1, wherein Clamping piece (8) is composed of moving rod (16), clamping rod (17) and first elastic member (18), moving rod (16) is slidably connected in through hole set on first half ring (13), moving rod (16) is connected with clamping rod (17) at the end away from first half ring (13), the other end of moving rod (16) is slidably connected with adjusting groove (9), and first elastic member (18) is sleeved on moving rod (16).

5. A building heating, ventilation and air conditioning duct connection device according to claim 1, wherein, Locking piece (7) is composed of second ratchet plate (19), second elastic member (20) and pull rod (21), one end of pull rod (21) is connected with second ratchet plate (19), pull rod (21) is provided with limiting block itself, second elastic member (20) is sleeved on the outside of pull rod (21), and second elastic member (20) is arranged between second ratchet plate (19) and first half ring (13).

6. A building heating, ventilation and air conditioning duct connection device according to claim 1, wherein, Sliding track (10) is composed of two identical arc-shaped tracks (22), and two arc-shaped tracks (22) correspond to first half ring (13) and second half ring (14).

7. A building heating, ventilation and air conditioning duct connection device according to claim 6, wherein, The plurality of rotating rods are connected with connecting frames (23) at both ends, the connecting frames (23) divide the plurality of rotating rods (11) into two parts corresponding to the two arc-shaped tracks (22).

8. A building heating, ventilation and air conditioning duct connection device according to claim 6, wherein, The rotating assembly further comprises A limiting bolt (24) is rotatably connected on the arc-shaped track (22), and the limiting bolt (24) is threadedly connected with a clamping block (25).

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