Protective device at joint of heating and ventilation pipeline

Abstract

The utility model relates to a heating and ventilation pipeline joint protection device which comprises a fixing ring, the fixing ring can be fixed at the heating and ventilation pipeline joint, the protection device further comprises two sections of corrugated protection sleeves, the periphery of a heating and ventilation pipeline can be sleeved with the bendable corrugated protection sleeves, and the two sections of corrugated protection sleeves are detachably connected to the two sides of the fixing ring respectively. An elastic ring is arranged in the end, away from the fixing ring, of the corrugated protection sleeve, and the protection device can meet the protection requirements of the straight pipe connector and the bent structure.

Description

Technical Field

[0001] This utility model relates to the field of HVAC duct protection technology, specifically to a protective device for HVAC duct joints. Background Technology

[0002] As a crucial component of buildings, HVAC systems encompass three main functions: heating, ventilation, and air conditioning. The performance of this system directly impacts the comfort and energy efficiency of the building's interior environment. HVAC ducts, as a core component of the transmission medium, vary in thickness and specifications depending on specific application requirements. HVAC ducts are suitable for a wide range of applications, including supply and return air ducts for cleanroom systems, central air conditioning ventilation ducts, industrial supply and exhaust ventilation ducts, environmental protection system air intake and exhaust ducts, mine gas extraction pipes, and mine-use coated fabric ventilation ducts.

[0003] In practical engineering, the connection between HVAC pipes is mainly accomplished through joint structures, which can be straight pipe joints or right-angle bends for changing direction. To ensure the tightness and stability of the connection, the joint structure is usually equipped with threads and nuts. However, metal materials exposed to the external environment for a long time are prone to corrosion and rust, which not only affects aesthetics but, more importantly, increases the difficulty of later maintenance and disassembly. In addition, existing joint designs often cannot simultaneously meet the protection requirements of two different types of joints, such as straight pipe joints and bends, limiting the flexibility and adjustability during installation and lacking sufficient stability in fixing and clamping pipes. Utility Model Content

[0004] In view of the technical problems existing in the prior art, the purpose of this utility model is to provide a protective device for HVAC pipe joints that can meet the protection requirements of straight pipe joints and bent structures.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A protective device for HVAC duct joints includes a fixing ring that can be fixed at the HVAC duct joint. The protective device also includes two corrugated protective sleeves that can be fitted around the outer periphery of the HVAC duct. The two corrugated protective sleeves are detachably connected to both sides of the fixing ring. An elastic ring is provided inside the end of the corrugated protective sleeve away from the fixing ring.

[0007] As a preferred embodiment, the fixing ring includes a fixing connector and two semicircular rings, which are mated together, and the mating joint of the two semicircular rings is detachably connected by the fixing connector.

[0008] As a preferred embodiment, a connecting seat is provided on each of the two sides of the fixing ring, and a circular connecting groove is opened in the connecting seat. A circular connecting ring is provided at the end of the corrugated protective sleeve that is connected to the fixing ring, and the connecting ring engages with the connecting groove.

[0009] As a preferred embodiment, multiple expansion grooves are provided on the inner side of the fixing ring. These expansion grooves are evenly distributed along the circumference, and each expansion groove is slidably connected to an adjusting block. The inner ends of the multiple adjusting blocks can abut against the surface of the HVAC pipe joint.

[0010] As a preferred embodiment, the sliding distance of the adjusting block is controlled by a screw between the telescopic groove and the adjusting block. The screw is limited to rotate on the fixed ring, and an internal threaded hole is opened on the adjusting block. The screw is threadedly connected to the internal threaded hole.

[0011] As a preferred embodiment, the expansion groove has a fan-shaped structure, the adjusting block has a corresponding fan-shaped structure, and the center of the expansion groove coincides with the center of the fixing ring.

[0012] As a preferred embodiment, a top seat is fixedly connected to the top of the fixing ring, and a hanging rod is provided on the upper part of the top seat.

[0013] As a preferred embodiment, the bottom end of the boom is provided with a universal ball joint, and the top of the top seat is provided with a spherical groove. The universal ball joint is embedded in the spherical groove to achieve a limited movable connection between the universal ball joint and the top seat.

[0014] As a preferred option, the elastic ring is made of rubber and has a cross-shaped cut on it.

[0015] As a preferred option, the corrugated protective sleeve is provided with an aluminum foil layer on the outside.

[0016] This utility model has the following advantages:

[0017] 1. This utility model achieves effective protection for HVAC pipe joints by setting corrugated protective sleeves on both sides of the fixing ring. The corrugated protective sleeves not only cover the HVAC pipe joints, preventing them from being corroded by the external environment and mechanically damaged, but also, due to their expandable and bendable characteristics, can flexibly adapt to the different needs of straight pipe joints and bent right-angle joints in HVAC systems, significantly improving the applicability and reliability of the protective device. An elastic ring is provided inside the end of the corrugated protective sleeve away from the fixing ring, further enhancing the sealing performance and protection of the joint.

[0018] 2. The corrugated protective sleeve and fixing ring adopt a split assembly structure, which allows users to select the appropriate length for installation according to actual needs, greatly improving the flexibility and convenience of the installation process and reducing the cost of on-site adjustment and customization.

[0019] 3. The retaining ring, with its internal expansion groove and adjusting block design, can adapt to HVAC pipes of different diameters. The screw adjustment mechanism allows users to precisely adjust the position of the adjusting block, ensuring that the retaining ring fits tightly against pipes of various specifications, greatly improving the versatility and practicality of the device.

[0020] 4. A top seat is provided at the top of the fixing ring, which is connected to the hanger rod through a universal ball joint structure, allowing for fine-tuning of the fixing ring's angle and facilitating installation. The universal ball joint design ensures both a secure connection and the necessary flexibility, helping to reduce construction difficulty and improve the overall stability of the system.

[0021] 5. The aluminum foil layer on the outside of the corrugated protective sleeve not only enhances its aesthetics but also provides an extra protective barrier, preventing moisture and chemicals from corroding the sleeve material. This protection is particularly important in humid or rainy environments. Therefore, compared to traditional corrugated protective sleeves without the aluminum foil layer, the service life of this invention is significantly extended.

[0022] 6. The elastic ring is made of rubber and has a cross-shaped cut. The cross-shaped cut makes it easier to open the elastic ring and make it fit the pipe better. This allows the corrugated protective sleeve to be fitted onto pipes of various diameters to achieve a sealing effect. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a front view structural diagram of the present invention.

[0025] Figure 2 This is a side view of the fixing ring structure of this utility model.

[0026] Figure 3 This is a side sectional view of the fixing ring of this utility model.

[0027] Figure 4 This is a cross-sectional view of the corrugated protective sleeve of this utility model.

[0028] Figure 5 for Figure 4 A-direction view.

[0029] Figure 6This is a top view of the lower semicircular ring of the fixing ring of this utility model.

[0030] Figure 7 This is a schematic diagram of the structure for connecting the retaining ring and the connecting slot.

[0031] The components are as follows: 1. Fixing ring; 2. Top seat; 3. Hanger rod; 4. Corrugated protective sleeve; 5. Connecting seat; 6. Screw; 7. Adjusting block; 8. Universal ball joint; 9. Internal threaded hole; 10. Expansion groove; 11. Connecting retaining ring; 12. Elastic ring; 13. Connecting groove; 14. Semi-circular ring; 15. Connecting ear; 16. Fixing connector; 17. Circular ring; 18. Cross cut. Detailed Implementation

[0032] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] like Figures 1 to 7 As shown, a protective device for HVAC duct joints includes a fixing ring 1, which can be fixed to the HVAC duct joint. The protective device also includes two corrugated protective sleeves 4, which are flexible and can be fitted around the outer circumference of the HVAC duct. The two corrugated protective sleeves 4 are detachably connected to both sides of the fixing ring 1. An elastic ring 12 is provided inside the end of the corrugated protective sleeve 4 away from the fixing ring 1. By setting corrugated protective sleeves 4 on both sides of the fixing ring 1, effective protection of the HVAC duct joint is achieved. The corrugated protective sleeves 4 not only cover the HVAC duct joint, preventing it from being corroded by the external environment and mechanically damaged, but also, due to their extensibility and flexibility, can flexibly adapt to the different needs of straight pipe joints and bent right-angle joints in HVAC ducts, significantly improving the applicability and reliability of the protective device. The elastic ring 12 inside the end of the corrugated protective sleeve 4 away from the fixing ring 1, which fits on the HVAC duct, further enhances the sealing and protection of the joint.

[0034] like Figure 2 As shown, the circular fixing ring 1 includes a fixing connector 16 and two semicircular rings 14. The two semicircular rings 14 are mated together, and the mating point of the two semicircular rings 14 is detachably connected by the fixing connector 16. Specifically, each end of the mating surface of the two semicircular rings 14 is provided with a connecting lug 15. The fixing connector 16 is a bolt, which passes through the connecting lugs 15 of both semicircular rings 14 simultaneously. The end of the bolt is screwed into a nut to connect the two semicircular rings 14.

[0035] The fixed ring 1 has connecting seats 5 on its two sides. Each connecting seat 5 is a circular ring 17 extending from the side of the fixed ring 1. The side of the circular ring 17 away from the fixed ring 1 extends inward to form a circular connecting groove 13. The end of the corrugated protective sleeve 4 that connects to the fixed ring 1 extends outward to form a circular connecting retainer 11. When the fixed ring 1 is divided into two semicircular rings 14, the connecting groove 13 is also divided into two halves. When installing the fixed ring 1 and the corrugated protective sleeve 4, one of the semicircular rings 14 is placed on the HVAC pipe joint, and then the connecting retainer 11 of the corrugated protective sleeve 4 is inserted into half of the connecting groove 13, locking the connecting retainer 11 into half of the connecting groove 13. Then, the other semicircular ring 14 is joined accordingly, achieving a locking connection between the connecting retainer 11 and the connecting groove 13. This locking connection allows the corrugated protective sleeve 4 to be quickly and easily assembled or disassembled with the fixed ring 1 without the need for tools, greatly improving on-site construction efficiency and operational convenience. The snap-fit ​​connection method avoids exposed screws or solder joints, making the entire protective device look cleaner and more aesthetically pleasing.

[0036] like Figure 3 As shown, multiple expansion grooves 10 are formed on the inner side of the fixing ring 1, and these grooves 10 are evenly distributed along the circumference. Each expansion groove 10 has an adjusting block 7 slidably connected within it. The inner ends of the adjusting blocks 7 can abut against the surface of the HVAC pipe joint. The fixing ring 1 is fixed to the surface of the HVAC pipe joint by the adjusting blocks 7, thus achieving the installation and fixation of the protective device. The design of the internal expansion grooves 10 and adjusting blocks 7 allows the fixing ring 1 to adapt to HVAC pipes of different diameters. The screw 6 adjustment mechanism allows users to precisely adjust the position of the adjusting blocks 7, ensuring that the fixing ring 1 fits tightly against pipes of various specifications, greatly improving the versatility and practicality of the device.

[0037] The sliding distance of the adjusting block 7 is adjusted via a screw 6 between the expansion groove 10 and the adjusting block 7. The screw 6 is rotatably limited on a fixed ring 1, which has a through hole connecting to the expansion groove 10. The screw 6 passes through the through hole and extends into the expansion groove 10. A limiting ring is welded to the screw 6, which, located within the expansion groove 10, limits the screw 6, allowing it to rotate but preventing outward movement. The adjusting block 7 has an internally threaded hole 9. When installing the adjusting block 7, it is inserted into the expansion groove 10 within the semi-circular ring 14, and the screw 6 is threaded into the internally threaded hole 9. This threaded connection allows users to fine-tune the position of the adjusting block 7 by rotating the screw 6, precisely adapting it to pipes of various diameters. This not only improves installation accuracy and flexibility but also expands the application range of the device. Users can easily position the adjusting block 7 by simply rotating the screw 6, without requiring complex tools or skills, greatly enhancing operational convenience. Furthermore, this design supports rapid adjustments without removing existing components, further improving maintenance and repair efficiency.

[0038] The expansion groove 10 has a fan-shaped structure, and the adjusting block 7 has a corresponding fan-shaped structure. The center of the expansion groove 10 coincides with the center of the fixing ring 1. The inner side of the fan-shaped adjusting block 7 is arc-shaped, which can firmly fit against the pipe surface and avoid loosening caused by differences in pipe size.

[0039] A top seat 2 is fixedly connected to the top of the fixing ring 1, and a hanger 3 is installed on the upper part of the top seat 2. HVAC pipes themselves have a certain weight, especially in large buildings, where these pipes may be very long and heavy. The hanger 3 provides the necessary support to ensure that the pipes can be safely suspended in the air without being damaged or deformed due to their own weight.

[0040] The bottom end of the hanger rod 3 is equipped with a universal ball joint 8, and the top of the top seat 2 has a spherical groove. The universal ball joint 8 is inserted into the spherical groove to achieve a limited movable connection between the universal ball joint 8 and the top seat 2. The universal ball joint 8 allows the fixing ring 1 to be finely adjusted in angle, which is convenient for installation.

[0041] The elastic ring 12 is made of rubber and has a cross-shaped cut 18. The cross-shaped cut 18 makes it easier to open the elastic ring 12, allowing it to fit the pipe more closely. This enables the corrugated protective sleeve 4 to be fitted onto pipes of various diameters, achieving a sealing effect.

[0042] The corrugated protective sleeve 4 is externally covered with an aluminum foil layer. This aluminum foil layer not only enhances the aesthetics but also provides an extra protective barrier, preventing moisture, chemicals, and other substances from corroding the material of the corrugated protective sleeve 4. This protection is particularly important in humid or rainy environments. Therefore, compared to traditional corrugated protective sleeves 4 without an aluminum foil layer, the service life of this invention is significantly extended.

[0043] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A protection device for a heating and plumbing joint, comprising a fixing ring (1) which can be fixed at the heating and plumbing joint, characterized in that: The protection device further comprises two sections of corrugated protection sleeves (4), the bendable corrugated protection sleeves (4) can be sleeved on the outer periphery of the heating and ventilation pipeline, the two sections of corrugated protection sleeves (4) are respectively detachably connected to the two sides of the fixing ring (1), and an elastic ring (12) is arranged in the end of the corrugated protection sleeve (4) away from the fixing ring (1).

2. A protection device for HVAC joints according to claim 1, characterized in that: The fixing ring (1) comprises a fixing connector (16) and two semicircular rings (14), the two semicircular rings (14) are oppositely connected, and the connecting portions of the two semicircular rings (14) are detachably connected through the fixing connector (16).

3. A protection device for heating, ventilation and air conditioning pipe joints according to claim 2, characterized in that: The two sides of the fixing ring (1) are respectively provided with connecting seats (5), circular connecting notches (13) are arranged in the connecting seats (5), the end of the corrugated protection sleeve (4) connected with the fixing ring (1) is provided with a circular connecting snap ring (11), and the connecting snap ring (11) is clamped and connected with the connecting notches (13).

4. A protection device for HVAC joints according to claim 1, characterized in that: A plurality of expansion grooves (10) are arranged in the inner side of the fixing ring (1), the expansion grooves (10) are uniformly distributed along the circumference, each expansion groove (10) is slidably connected with an adjusting block (7), and the inner end of the adjusting block (7) can abut against the surface of the heating and ventilation pipeline joint.

5. A protection device for heating, ventilation and air conditioning joints according to claim 4, characterized in that: The sliding distance of the adjusting block (7) is adjusted and controlled through a screw rod (6) between the expansion groove (10) and the adjusting block (7), the screw rod (6) is limitingly and rotatably arranged on the fixing ring (1), an inner threaded hole (9) is arranged on the adjusting block (7), and the screw rod (6) is threadedly connected with the inner threaded hole (9).

6. A protection device for heating, ventilation and air conditioning joints according to claim 5, characterized in that: The expansion groove (10) is a fan-shaped structure, the adjusting block (7) is correspondingly a fan-shaped structure, and the center of the expansion groove (10) coincides with the center of the fixing ring (1).

7. A protection device for HVAC joints according to claim 1, characterized in that: The top of the fixing ring (1) is fixedly connected with a top seat (2), and the upper portion of the top seat (2) is provided with a suspender (3).

8. A protection device for heating, ventilation and air conditioning pipe joints according to claim 7, characterized in that: The bottom end of the suspender (3) is provided with a universal ball joint (8), a spherical notch is arranged in the top of the top seat (2), and the universal ball joint (8) is embedded in the spherical notch to realize the limitingly movable connection between the universal ball joint (8) and the top seat (2).

9. A protection device for heating, ventilation and air conditioning joints according to claim 1, characterized in that: The material of the elastic ring (12) is rubber, and the elastic ring (12) is provided with a cross-shaped notch (18).

10. A protection device for heating, ventilation, and air conditioning joints according to claim 1, wherein: An aluminum foil layer is arranged on the outside of the corrugated protection sleeve (4).

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