Auxiliary connecting device for heating and ventilation pipes
By designing auxiliary connection devices for HVAC pipes, and utilizing structures such as rings, annular holes, bolts, and arc plates, the problems of insufficient sealing and support performance of HVAC pipe connection devices have been solved, achieving higher sealing and support performance and extending the service life of the pipe body.
Patent Information
- Application Number
- CN202520733994.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-04-17
AI Technical Summary
The existing HVAC duct connection devices have poor sealing and support performance, resulting in a shortened service life of the pipes.
An auxiliary connection device for HVAC pipes was designed, including a first connector, a second connector, and an annular plate. The connection of the ring and the annular hole, combined with the structure of bolts, arc plates, and limiting plates, enables the fastening connection of the HVAC pipes, and provides support by fixing them to the ground with a plug rod.
It improves the sealing and support of HVAC pipe connections, and extends the service life of the pipe body.
Smart Images

Figure CN223965085U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pipe connection auxiliary devices, specifically a heating, ventilation and air conditioning (HVAC) pipe auxiliary connection device. Background Technology
[0002] When laying HVAC pipes, pipe connection devices are needed to fix and connect two different pipes so that the liquid in the two pipes can flow without leakage.
[0003] In the process of realizing this utility model, the inventors discovered the following problems with the prior art: the device uses a semi-circular component to fasten the two sections of the tube together, but the sealing effect and support performance are poor, which shortens the service life of the tube. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides an auxiliary connection device for HVAC pipes. This device solves the problem that existing devices use a semi-circular component to fasten two pipe sections together, but the sealing effect and support performance are poor, resulting in a shorter service life for the pipes.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary connection device for HVAC pipes, comprising a first HVAC pipe connector, a second HVAC pipe connector, and an annular plate. The first HVAC pipe connector has a first annular groove, and the second HVAC pipe connector has a second annular groove. The side wall of the first HVAC pipe connector has a circular ring, and the side wall of the second HVAC pipe connector has an annular hole. The circular ring is movably inserted into the annular hole. The inner wall of the annular plate has a pair of arc-shaped grooves. Bearings are provided in the side walls of the groove, and bolts are movably inserted in each pair of bearings. Arc plates are screwed into each pair of bolts. A pair of limiting plates are hinged to the side walls of the annular plate. Each pair of limiting plates has a sliding groove on its side walls. A circular block is slidably hinged in one of the sliding grooves, and a threaded sleeve rod is slidably hinged in the other sliding groove. An internally threaded rod is rotatably connected in the circular block. The internally threaded rod is threaded into the threaded sleeve rod. A fixing plate is hinged to one end of each pair of limiting plates, and several insert rods are provided at the lower end of each pair of fixing plates.
[0006] Preferably, the diameter of the annular plate is slightly larger than the diameters of the first HVAC pipe connector and the second HVAC pipe connector.
[0007] Preferably, the two pairs of arc-shaped plates can be movably inserted into the first annular groove and the second annular groove, respectively.
[0008] Preferably, each of the two pairs of arc-shaped plates has two pairs of sliding rods on its wall surface, and the four pairs of sliding rods are respectively movably inserted into the inner wall surface of the two pairs of arc-shaped grooves.
[0009] Preferably, the two pairs of arc-shaped plates are each movably placed within a pair of arc-shaped grooves.
[0010] Preferably, each of the two pairs of bolts has a limiting plate at one end, and the two pairs of limiting plates are respectively located within the two pairs of arc-shaped plates.
[0011] Beneficial effects
[0012] This invention provides an auxiliary connection device for HVAC pipes. The device features a structure that enhances sealing and provides support. It connects the first and second HVAC pipe connectors via a ring and an annular hole, then fits a ring plate on top. Adjusting a pair of bolts rotates the arc-shaped plate, connecting the first and second HVAC pipe connectors. A pair of fixing plates can be inserted into the ground via insert rods for secure support. This device is highly practical, improving the sealing of HVAC pipe connections and providing adjustable support to the pipe joints. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 This is a partial structural schematic diagram of the present invention.
[0015] In the diagram: 1. First HVAC pipe connector; 2. Second HVAC pipe connector; 3. Circular ring; 4. Circular hole; 5. First annular groove; 6. Second annular groove; 7. Circular plate; 8. Arc groove; 9. Bolt; 10. Bearing; 11. Arc plate; 12. Sliding rod; 13. Limiting plate; 14. Fixing plate; 15. Sliding groove; 16. Circular block; 17. Internal threaded rod; 18. Threaded sleeve rod. Detailed Implementation
[0016] 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.
[0017] Please see Figure 1-2This utility model provides a technical solution: an auxiliary connection device for HVAC pipes, including a first HVAC pipe connector 1, a second HVAC pipe connector 2, and an annular plate 7. The first HVAC pipe connector 1 has a first annular groove 5, and the second HVAC pipe connector 2 has a second annular groove 6. The side wall of the first HVAC pipe connector 1 has a ring 3, and the side wall of the second HVAC pipe connector 2 has an annular hole 4. The ring 3 is movably inserted into the annular hole 4. The inner wall of the annular plate 7 has a pair of arc-shaped grooves 8, and bearings 10 are respectively provided in the side walls of the pair of arc-shaped grooves 8. Bolts 9 are movably inserted into both pairs of bearings 10, and arc-shaped plates 11 are screwed onto both pairs of bolts 9. A pair of limiting plates 13 are hinged to the side wall of the annular plate 7. Each pair of limiting plates 13 has a sliding groove 15 on its side wall. A circular block 16 is slidably hinged into one of the sliding grooves 15, and a threaded sleeve rod 18 is slidably hinged into the other sliding groove 15. An internally threaded rod 17 is rotatably connected to the circular block 16 and is threaded into the threaded sleeve rod 18. A fixing plate 14 is hinged to one end of each pair of limiting plates 13, and several insert rods are provided at the lower end of each pair of fixing plates 14.
[0018] In this embodiment, the diameter of the annular plate 7 is slightly larger than the diameters of the first HVAC pipe connector 1 and the second HVAC pipe connector 2.
[0019] In this embodiment, the two pairs of arc-shaped plates 11 are respectively movably inserted into the first annular groove 5 and the second annular groove 6.
[0020] In this embodiment, two pairs of sliding rods 12 are provided on the wall surfaces of the two pairs of arc-shaped plates 11, and the four pairs of sliding rods 12 are respectively movably inserted into the inner wall surfaces of the two pairs of arc-shaped grooves 8.
[0021] In this embodiment, the two pairs of arc-shaped plates 11 are respectively movably placed in a pair of arc-shaped grooves 8.
[0022] In this embodiment, it is further configured that one end of each pair of bolts 9 is provided with a limiting plate 13, and the two pairs of limiting plates 13 are respectively located within the two pairs of arc-shaped plates 11.
[0023] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.
[0024] Example: The device connects the first HVAC pipe connector 1 and the second HVAC pipe connector 2 through the connection between the ring 3 and the annular hole 4, and fits the annular plate 7 on it. Adjusting the rotation of a pair of bolts 9, since one end of the bolt 9 is rotatably connected in the bearing 10, drives the arc plate 11 to move under the limiting action of the slide rod 12, rotates the internal thread rod 17, and adjusts the connection length between the internal thread rod 17 and the threaded sleeve rod 18, so that the pair of limiting plates 13 are separated, and the internal thread rod 17 rotates in the ring block 16. A pair of fixing plates 14 can be inserted into the ground through the insertion rod for fixed support.
[0025] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.
Claims
1. A heating and ventilation pipe auxiliary connecting device comprising a heating and ventilation pipe first connecting head (1), a heating and ventilation pipe second connecting head (2) and a ring-shaped plate (7), characterized in that, The first connecting head (1) of the warm pipe is equipped with a first annular groove (5), the second connecting head (2) of the warm pipe is equipped with a second annular groove (6), the side wall surface of the first connecting head (1) of the warm pipe is equipped with a circular ring (3), the side wall surface of the second connecting head (2) of the warm pipe is equipped with an annular hole (4), the circular ring (3) can be movably inserted into the annular hole (4), the inner wall surface of the annular plate (7) is equipped with a pair of arc-shaped grooves (8), the side wall surface of a pair of the arc-shaped grooves (8) is respectively equipped with a bearing (10), two pairs of the bearings (10) are movably inserted with bolts (9) inside, two pairs of the bolts (9) are respectively screwed with arc-shaped plates (11), the side wall surface of the annular plate (7) is hingedly connected with a pair of limiting plates (13), the side wall surface of a pair of the limiting plates (13) is respectively equipped with a sliding groove (15), one of the sliding grooves (15) is slidably hingedly connected with a circular ring block (16), the other sliding groove (15) is slidably hingedly connected with a threaded sleeve rod (18), the circular ring block (16) is rotatably connected with an internally threaded rod (17) inside, the internally threaded rod (17) is threadedly connected in the threaded sleeve rod (18), one end of a pair of the limiting plates (13) is respectively hingedly connected with a fixed plate (14), a plurality of insertion rods are respectively arranged at the lower end of a pair of the fixed plates (14).
2. A heating pipe auxiliary connecting device according to claim 1, characterized in that, The diameter of the annular plate (7) is slightly larger than the diameter of the first connecting head (1) and the second connecting head (2) of the warm pipe.
3. A heating pipe auxiliary connecting device according to claim 1, characterized in that, Two pairs of the arc-shaped plates (11) can be movably inserted into the first annular groove (5) and the second annular groove (6) respectively.
4. A heating pipe auxiliary connecting device according to claim 1, characterized in that, The wall surface of two pairs of the arc-shaped plates (11) is respectively equipped with two pairs of sliding rods (12), four pairs of the sliding rods (12) are movably inserted into the inner wall surface of two pairs of the arc-shaped grooves (8) respectively.
5. A heating pipe auxiliary connecting device according to claim 1, characterized in that, Two pairs of the arc-shaped plates (11) can be movably placed in a pair of the arc-shaped grooves (8) respectively.
6. A heating pipe auxiliary connecting device according to claim 1, characterized in that, One end of two pairs of the bolts (9) is respectively equipped with a limiting plate (13), two pairs of the limiting plates (13) are respectively arranged in two pairs of the arc-shaped plates (11).