Energy-saving heating and ventilation pipeline capable of being used in combination

Abstract

The utility model discloses a kind of energy-saving heating and ventilation pipelines capable of combined use, it is related to heating and ventilation pipeline technical field, including multiple groups of single pipeline of head-to-tail, the both ends of single pipeline include integrally-formed pipe head and pipe tail, pipe head and pipe tail sealing fixed shaft seal mechanism for enabling adjacent two groups of single pipeline to cooperate use are equipped on single pipeline, shaft seal mechanism includes the gap groove on the inner wall of pipe tail, the side of pipe tail opening end is provided with clamping groove to the gap groove, slidingly connected with special-shaped seal ring in gap groove, and the end of special-shaped seal ring away from clamping groove is fixed with elastic sealing ring by clamping;The utility model is through setting shaft seal mechanism, adopt special-shaped seal ring, elastic sealing ring, gap ring and ring seal assembly and so on multilayer sealing structure, in splicing process, through the expansion and recovery deformation of gap ring, and the dynamic sealing of elastic sealing ring under the medium pressure effect, medium leakage can be effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of HVAC piping technology, specifically to an energy-saving HVAC piping system that can be used in combination. Background Technology

[0002] Heating, ventilation, and air conditioning (HVAC) ducts are piping systems used to transport heat or cold, and are an important component of HVAC systems. They are widely used in construction, industry, and other fields to regulate indoor temperature and ensure air circulation. HVAC ducts typically transport media such as hot water, steam, and chilled water, delivering heat or cold to various areas through a network of pipes to meet people's needs for a comfortable environment.

[0003] Existing HVAC ductwork typically employs threaded connections, flange connections, or welding during splicing. With threaded connections, insufficient thread machining precision or improper tightening torque can easily lead to gaps and media leakage. Flange connections require a gasket between the two flanges. However, the quality of the gasket, the flatness of the installation, and the tightness of the bolts all affect the sealing effect. For welded HVAC connections, specialized welding equipment and skilled welders are required, resulting in a significant workload.

[0004] Meanwhile, although threaded and flanged connections are relatively simple, they still require thread machining and bolt tightening. During installation, pipe alignment and positioning are also necessary, all of which consume significant time and manpower. Therefore, it is difficult to improve splicing efficiency while ensuring the sealing of pipe joints. Consequently, this paper proposes an energy-saving HVAC pipe system that can be used in combination. Utility Model Content

[0005] The purpose of this utility model is to provide an energy-saving HVAC pipe that can be used in combination, which has the advantages of effectively preventing media leakage and further improving assembly efficiency, and solves the problem of difficulty in improving splicing efficiency while ensuring the sealing of pipe joints.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving HVAC pipe that can be used in combination, comprising multiple sets of single pipes connected end to end, each single pipe having an integrally formed pipe head and pipe tail at both ends, and the single pipe being provided with a shaft sealing mechanism that drives the pipe head and pipe tail of two adjacent sets of single pipes to cooperate and seal and fix them.

[0007] The shaft sealing mechanism includes a clearance groove on the inner wall of the pipe tail, a locking groove on the side of the clearance groove facing the opening end of the pipe tail, and an inner ring on the side of the clearance groove away from the locking groove. The inner ring is fixedly connected to the inner wall of the pipe tail, and a special-shaped sealing ring is slidably connected in the clearance groove. An elastic sealing ring is locked and fixed at the end of the special-shaped sealing ring away from the locking groove.

[0008] A notched ring is fixedly engaged in the slot, and an inner ring groove for accommodating the notched ring is provided on the tube head. The open end of the tube head includes an integrally formed end step and a center step.

[0009] The single-channel pipeline is equipped with a ring-sealing assembly that seals the connection points between the head and tail of adjacent pipes.

[0010] Preferably, the notched ring slides in contact with the outer peripheral surface of the tube head, and the notched ring expands and deforms when the central step portion slides in contact with the notched ring.

[0011] Preferably, there is a gap between the outer circumferential surface of the pipe head and the inner ferrule for the flow of medium in a single pipeline.

[0012] Preferably, the ring sealing assembly includes a bend base fixedly connected to the head of the pipe, an internal threaded ring is provided between the bend base and the head of the pipe, and a horizontal groove is provided on the bend base for the internal threaded ring to slide along the axial direction of the head of the pipe.

[0013] The internal threaded ring is threadedly fitted with a driven threaded ring and a main threaded ring. The driven threaded ring rotates on the pipe head with a fixed axis, and the main threaded ring rotates on the pipe tail with a fixed axis. The driven threaded ring and the main threaded ring rotate synchronously.

[0014] Preferably, a matching plate is fixedly connected to one end face of the lateral threaded ring facing the main threaded ring, and a matching groove for accommodating the matching plate is provided on the main threaded ring.

[0015] The end of the main threaded ring away from the bend base is fixedly connected to an oblique pin plate.

[0016] Preferably, a positioning groove is provided on the head of the pipe, and a positioning plate is provided in the positioning groove. The outer peripheral surface of the positioning plate is in sliding contact with the inner wall of the positioning groove, and the positioning plate is fixedly connected to the tail of the pipe.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model, by setting up a shaft sealing mechanism, adopts a multi-layer sealing structure including a non-circular sealing ring, an elastic sealing ring, a notched ring, and a ring sealing assembly. During the splicing process, the expansion and recovery deformation of the notched ring and the dynamic sealing of the elastic sealing ring under the action of medium pressure can effectively prevent medium leakage.

[0019] 2. This utility model achieves rapid positioning and preliminary connection through the end-step and mid-step sections at the pipe head, as well as the clearance groove and locking groove at the pipe tail. During splicing, simply insert the pipe head of one set of single-channel pipes into the pipe tail of another set of single-channel pipes, and the end-step section will automatically push the notch ring out of the locking groove and into the clearance groove to complete the preliminary connection. This process does not require additional positioning tools or complex alignment operations, which greatly saves assembly time and further improves assembly efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the component where the turning base of this utility model is located;

[0022] Figure 3 This is a schematic diagram of the component containing the notch ring of this utility model;

[0023] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This utility model Figure 3 Enlarged view at point B in the middle;

[0025] Figure 6 This is a schematic diagram of the component containing the inner ring of this utility model;

[0026] Figure 7 This is a schematic diagram of the component containing the main threaded ring of this utility model;

[0027] Figure 8 This utility model Figure 7 Enlarged view of point C in the middle.

[0028] In the diagram: 1. Single-direction pipe; 2. Pipe head; 201. End step section; 202. Mid-step section; 3. Pipe tail section; 4. Notched ring; 5. Inner ring groove; 6. Relief groove; 7. Irregular sealing ring; 8. Inner ring; 9. Locking groove; 10. Positioning insert plate; 11. Positioning groove; 12. Following threaded ring; 13. Corresponding plate; 14. Leading threaded ring; 15. Oblique pin plate; 16. Internal threaded ring; 17. Turning base; 18. Elastic sealing ring. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0030] Please see Figures 1 to 8 This utility model provides a technical solution: an energy-saving HVAC pipe that can be used in combination, including multiple sets of single pipes 1 connected end to end, each single pipe 1 having an integrally formed pipe head 2 and pipe tail 3 at both ends, and the single pipe 1 is provided with a shaft sealing mechanism that drives the pipe head 2 and pipe tail 3 of two adjacent sets of single pipes 1 to be used together to seal and fix them.

[0031] The shaft sealing mechanism includes a relief groove 6 opened on the inner wall of the tail section 3. A locking groove 9 is opened on the side of the relief groove 6 facing the opening end of the tail section 3, and an inner ring 8 is provided on the side of the relief groove 6 away from the locking groove 9. The inner ring 8 is fixedly connected to the inner wall of the tail section 3. A shaped sealing ring 7 is slidably connected in the relief groove 6. An elastic sealing ring 18 is locked and fixed at the end of the shaped sealing ring 7 away from the locking groove 9.

[0032] The notched ring 4 is fixedly engaged in the slot 9, and the tube head 2 is provided with an inner ring groove 5 for accommodating the notched ring 4. The open end of the tube head 2 includes an integrally formed end step 201 and a center step 202.

[0033] The single-channel pipe 1 is equipped with a ring sealing assembly at the connection position of the adjacent pipe head 2 and pipe tail 3.

[0034] The notched ring 4 slides in contact with the outer peripheral surface of the tube head 2, and the notched ring 4 expands and deforms when the central step portion 202 slides in contact with the notched ring 4.

[0035] like Figures 1-6 As shown, when splicing two adjacent sets of single-channel pipes 1, the head 2 of one set of single-channel pipes 1 is inserted into the tail 3 of another set of single-channel pipes 1. During the process of the head 2 entering the tail 3, the end step 201 in the head 2 first contacts the notch ring 4, and under the push of the end step 201, the notch ring 4 is disengaged from the locking groove 9, so as to drive the notch ring 4 into the clearance groove 6.

[0036] Meanwhile, as the head of the pipe 2 continues to extend into the tail of the pipe 3, the notched ring 4 abuts against the irregular sealing ring 7 and cannot continue to move within the clearance groove 6. When the middle step 202 passes the location of the notched ring 4, the cross-sectional size of the middle step 202 is larger, which causes the notched ring 4 to expand and deform. Subsequently, as the head of the pipe 2 continues to extend and the inner ring groove 5 aligns with the notched ring 4, the notched ring 4 has space to recover its deformation. At this time, the notched ring 4 recovers its deformation and is engaged in the inner ring groove 5.

[0037] At this time, the tube head 2 is pulled out a certain distance in the opposite direction, that is, the tube head 2 is driven away from the tube tail 3 a certain distance. At this time, the tube head 2 carries the notch ring 4 through the inner ring groove 5 and moves to the position of the locking groove 9 again. When the notch ring 4 corresponds to the position of the locking groove 9, the tube head 2 will be unable to continue to be pulled out of the tube tail 3.

[0038] Meanwhile, when the assembled multiple sets of single-channel pipes 1 are filled with medium, there is a gap between the outer circumference of the pipe head 2 and the inner ring 8 for the medium to flow through the single-channel pipe 1. As the medium flows through the single-channel pipe 1, it can come into contact with the elastic sealing ring 18 through this gap. Under the push of the medium, the elastic sealing ring 18 and the irregular sealing ring 7 move towards the locking groove 9 until the irregular sealing ring 7 is located on the side close to the locking groove 9. Thus, the irregular sealing ring 7 seals the location of the locking groove 9. The locking groove 9 is deformed under the pressure of the pipe head 2, which can block the corresponding position and further prevent the medium from leaking.

[0039] It should be noted that after the notch ring 4 aligns with the position of the locking groove 9 again, the already mated tube head 2 and tube tail 3 are fixed by the ring sealing assembly to prevent relative displacement between the tube head 2 and tube tail 3, thereby ensuring the stability and sealing of the connection between the two.

[0040] In one preferred embodiment, the ring sealing assembly includes a bend base 17 fixedly connected to the pipe head 2, an internal threaded ring 16 is provided between the bend base 17 and the pipe head 2, and a horizontal groove is provided on the bend base 17 for the internal threaded ring 16 to slide along the axial direction of the pipe head 2.

[0041] The internal threaded ring 16 is threadedly fitted with a follower threaded ring 12 and a main threaded ring 14. The follower threaded ring 12 rotates on the pipe head 2 with a fixed axis, and the main threaded ring 14 rotates on the pipe tail 3 with a fixed axis. The follower threaded ring 12 and the main threaded ring 14 rotate synchronously.

[0042] A corresponding plate 13 is fixedly connected to one end face of the lateral threaded ring 12 facing the main threaded ring 14. A corresponding groove for accommodating the corresponding plate 13 is provided on the main threaded ring 14. An inclined pin plate 15 is fixedly connected to one end of the main threaded ring 14 away from the bend base 17.

[0043] The head portion 2 of the pipe is provided with a positioning groove 11, and a positioning plate 10 is provided in the positioning groove 11. The outer peripheral surface of the positioning plate 10 is in sliding contact with the inner wall of the positioning groove 11, and the positioning plate 10 is fixedly connected to the tail portion 3 of the pipe.

[0044] like Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, when the tube head 2 is inserted into the tube tail 3 and moves back a certain distance to make the notched ring 4 correspond to the inner ring groove 5 again, during this process, the positioning plate 10 can enter the positioning groove 11 and remain in the positioning groove 11 after the tube tail 3 moves back a certain distance. The corresponding plate 13 can enter the corresponding groove and remain in the corresponding groove after the tube tail 3 moves back a certain distance. Therefore, when the main threaded ring 14 is driven to rotate by the inclined pin plate 15 with the help of an external tool, the secondary threaded ring 12 can be driven to rotate synchronously under the action of the corresponding plate 13 and the corresponding groove.

[0045] Meanwhile, the internal threaded ring 16 is threadedly engaged with the following threaded ring 12 and the main threaded ring 14. Its turning base 17 is slidably connected to the turning base 17 through a horizontal groove. Thus, when the following threaded ring 12 and the co-position plate 13 rotate synchronously, the internal threaded ring 16 can move along the central axis of the single-direction pipe 1 on the turning base 17 until the turning base 17 can engage with the main threaded ring 14. At this time, the turning base 17 can completely cover the connection position of the pipe head 2 and the pipe tail 3.

[0046] It should be noted that in actual use, both the internal threaded ring 16 and the secondary threaded ring 12 are set on the pipe head 2, and the pipe head 2 is difficult to rotate freely under the restriction of the internal threaded ring 16. In order to ensure that the initial position of the primary threaded ring 14 can be threadedly engaged with the internal threaded ring 16, a co-position plate 13 and a co-position groove are set, and a positioning insert plate 10 and a positioning groove 11 are set simultaneously. When the co-position plate 13 corresponds to the co-position groove and the positioning insert plate 10 corresponds to the positioning groove 11, the primary threaded ring 14 is always threadedly engaged with the turning base 17 during rotation, and the movement of the turning base 17 will not be affected by the deviation of the thread position.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving HVAC pipe that can be used in combination, comprising multiple sets of end-to-end single pipes (1), each end of which includes an integrally formed pipe head (2) and pipe tail (3), characterized in that: The single-channel pipe (1) is provided with a shaft sealing mechanism that drives the pipe head (2) and pipe tail (3) of two adjacent single-channel pipes (1) to be used together to seal and fix them. The shaft sealing mechanism includes a relief groove (6) opened on the inner wall of the pipe tail (3), a locking groove (9) is opened on the side of the relief groove (6) facing the opening end of the pipe tail (3), and an inner ring (8) is provided on the side of the relief groove (6) away from the locking groove (9). The inner ring (8) is fixedly connected to the inner wall of the pipe tail (3). A special-shaped sealing ring (7) is slidably connected in the relief groove (6), and an elastic sealing ring (18) is fixedly engaged at the end of the special-shaped sealing ring (7) away from the locking groove (9). The notched ring (4) is fixedly engaged in the slot (9), and the tube head (2) is provided with an inner ring groove (5) for accommodating the notched ring (4). The open end of the tube head (2) includes an integrally formed end step (201) and a center step (202). The single-channel pipe (1) is provided with a ring sealing assembly at the connection position of the adjacent pipe head (2) and pipe tail (3).

2. The energy-saving HVAC pipe that can be used in combination according to claim 1, characterized in that: The notched ring (4) slides in contact with the outer peripheral surface of the tube head (2), and the notched ring (4) expands and deforms when the central step (202) slides in contact with the notched ring (4).

3. The energy-saving HVAC duct that can be used in combination according to claim 1, characterized in that: There is a gap between the outer circumference of the pipe head (2) and the inner ring (8) for the medium to flow in the single-channel pipe (1).

4. The energy-saving HVAC pipe that can be used in combination according to claim 1, characterized in that: The ring sealing assembly includes a bend base (17) fixedly connected to the head of the pipe (2), an internal threaded ring (16) is provided between the bend base (17) and the head of the pipe (2), and a horizontal groove is provided on the bend base (17) for the internal threaded ring (16) to slide along the axial direction of the head of the pipe (2). The internal threaded ring (16) is threadedly fitted with a follower threaded ring (12) and a master threaded ring (14). The follower threaded ring (12) rotates on the pipe head (2) with a fixed axis, and the master threaded ring (14) rotates on the pipe tail (3) with a fixed axis. The follower threaded ring (12) and the master threaded ring (14) rotate synchronously.

5. An energy-saving HVAC duct that can be used in combination according to claim 4, characterized in that: A co-position plate (13) is fixedly connected to one end face of the lateral threaded ring (12) facing the main threaded ring (14), and a co-position groove for accommodating the co-position plate (13) is provided on the main threaded ring (14); The main threaded ring (14) is fixedly connected to an inclined pin plate (15) at the end away from the bend base (17).

6. The energy-saving HVAC pipe that can be used in combination according to claim 4, characterized in that: The head part (2) of the pipe is provided with a positioning groove (11) and a positioning plate (10) is provided in the positioning groove (11). The outer peripheral surface of the positioning plate (10) is in sliding contact with the inner wall of the positioning groove (11), and the positioning plate (10) is fixedly connected to the tail part (3) of the pipe.

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