Heating and ventilation pipeline heat preservation structure
By setting up an insulation structure to accommodate the space outside the HVAC ducts, and using bolts and magnetic connecting rods to make the insulation layer removable and replaceable, the problem of the insulation layer being difficult to replace after aging in the existing technology is solved, simplifying the operation and improving the fit.
Patent Information
- Application Number
- CN202520441139.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-03-13
AI Technical Summary
When existing HVAC pipe insulation layers age or are damaged, they are difficult to replace efficiently, and adhesive residue can affect the adhesion of new insulation layers.
In the pipe insulation structure, a space is formed by setting up connecting sleeves, connecting plates, auxiliary plates and arc plates, and the insulation layer is placed in it. Bolts and magnetic connecting rods are used to make the insulation layer removable and replaceable, simplifying the replacement operation and avoiding adhesive bonding.
This allows for convenient replacement of the insulation layer, avoids the impact of adhesive residue, and improves the adhesion and replacement efficiency of the new insulation layer.
Smart Images

Figure CN223648897U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heating, ventilation and air conditioning (HVAC), and more specifically, it relates to an insulation structure for HVAC pipes. Background Technology
[0002] Heating, ventilation, and air conditioning (HVAC) pipes are a crucial part of connecting heating equipment. They are responsible for transferring heat and cooling within the system to control the indoor temperature. This is especially important for central heating systems, which require connection to a centralized heating station via HVAC pipes.
[0003] For HVAC ducts located outdoors, insulation measures are usually required to reduce energy loss in the ducts and prevent heat loss in the outdoor environment during winter.
[0004] Most existing insulation methods involve pasting the insulation layer onto the outside of the HVAC ducts. However, after prolonged use, the insulation layer is prone to aging or damage. When replacing it, because the insulation layer is pasted onto the outside of the HVAC ducts, it is not easy to clean the aged and damaged insulation layer, and the residual adhesive will affect the tightness of the new insulation layer. Utility Model Content
[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a heating, ventilation, and air conditioning (HVAC) pipe insulation structure. By placing the insulation layer within the containment space, after the insulation layer ages, it is only necessary to remove the arc-shaped plate to remove the aged insulation layer for replacement. This simplifies the replacement operation and does not affect the fit of the newly replaced insulation layer.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a heating, ventilation and air conditioning (HVAC) pipe insulation structure, including a connecting sleeve, wherein the connecting sleeve is configured as a semi-circular pipe and two connecting sleeves are provided, and the two connecting sleeves are sleeved on the outside of the HVAC pipe to form a complete circular pipe;
[0007] Each connecting sleeve is provided with two connecting plates. The two connecting plates are fixedly connected to both sides of the connecting sleeve and are arranged along the radial direction of the connecting sleeve. The two connecting plates on one connecting sleeve correspond one-to-one with the two connecting plates on the other connecting sleeve. When the two connecting sleeves are fitted outside the HVAC pipe to form a complete circular pipe, the corresponding two connecting plates are attached together and can be detachably connected together.
[0008] Auxiliary plates are fixedly connected to the outside of the two connecting sleeves respectively. The auxiliary plates are set along the radial direction of the connecting sleeves and are located in the middle of the arc of the connecting sleeves.
[0009] The arc-shaped plate is provided with four arc-shaped plates. Two connecting sleeves correspond to two arc-shaped plates respectively. Two receiving spaces are formed between the auxiliary plate and the two connecting plates on the same connecting sleeve. Each arc-shaped plate corresponds to one receiving space. The two sides of the arc-shaped plate are respectively connected to the auxiliary plate and the connecting plate on both sides of the receiving space.
[0010] And an insulation layer, with each containment space having an insulation layer located within the containment space.
[0011] The present invention is further configured such that: two receiving grooves are provided on the side of the auxiliary plate away from the connecting sleeve, and a receiving groove is also provided on the side of the connecting plate close to the auxiliary plate; the receiving grooves penetrate the connecting plate and the auxiliary plate on the side away from the connecting sleeve and penetrate the connecting plate and the auxiliary plate along the axial direction of the connecting sleeve.
[0012] The two sides of the curved plate are respectively embedded into two receiving slots on the side of the connecting plate and the auxiliary plate that are close to each other.
[0013] The present invention is further configured such that: two bolts are arranged along the axis of the connecting sleeve on the arc plate, the bolts are located at the middle position of the arc of the arc plate, the bolt thread part penetrates the arc plate along the radial direction of the connecting sleeve and is threadedly connected to the connecting sleeve, and the head of the bolt is pressed against the side of the arc plate away from the connecting sleeve.
[0014] The present invention is further configured such that: a plurality of connecting rods are arranged along the axial direction of the connecting sleeve between the arc plate and the connecting sleeve, the connecting rods are located at the middle position of the arc plate along the arc direction, the connecting rods are arranged along the radial direction of the connecting sleeve, and the connecting rods penetrate the insulation layer located in the same accommodating space.
[0015] The present invention is further provided with: a mating hole is provided at one end of the connecting rod near the connecting sleeve, which is formed on the outer wall of the connecting sleeve and matches the end of the connecting rod;
[0016] The connecting rod has a connecting hole on the inner wall of the arc plate at one end near the arc plate, and the connecting hole matches the end of the connecting rod.
[0017] The present invention is further configured such that: the connecting sleeve is a metal connecting sleeve, and the connecting rod is a magnetic connecting rod capable of being magnetically attracted to the metal connecting sleeve.
[0018] The present invention is further configured such that: the two corresponding connecting plates are detachably connected together by countersunk bolts, and the screw of the countersunk bolt passes through one of the connecting plates and is threadedly connected to the other connecting plate.
[0019] In summary, the present invention has the following advantages over the prior art: By placing the insulation layer within the accommodating space, after the insulation layer ages, it is only necessary to remove the arc-shaped plate to remove the aged insulation layer for replacement, which simplifies the replacement operation and does not affect the fit of the newly replaced insulation layer. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of the embodiment;
[0021] Figure 2 for Figure 1 Enlarged schematic diagram of part A;
[0022] Figure 3 This is a cross-sectional view illustrating the connecting rod in an embodiment;
[0023] Figure 4 for Figure 3 Enlarged schematic diagram of part B;
[0024] Figure 5 This is a schematic diagram illustrating a countersunk bolt as an example.
[0025] In the diagram: 1. Connecting sleeve; 11. Connecting plate; 12. Auxiliary plate; 13. Receiving groove; 14. Mating hole; 2. Insulation layer; 3. Arc plate; 31. Connecting hole; 4. Connecting rod; 5. Countersunk bolt. Detailed Implementation
[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the invention.
[0027] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.
[0028] Example: A heating, ventilation, and air conditioning (HVAC) duct insulation structure, see attached document. Figure 1 -Appendix Figure 5The system includes a connecting sleeve 1, connecting plates 11, an auxiliary plate 12, an arc-shaped plate 3, and an insulation layer 2. The connecting sleeve 1 is a semi-circular pipe, and two connecting sleeves 1 are provided, forming a complete circular pipe when fitted over the heating and ventilation pipe. Each connecting sleeve 1 has two connecting plates 11, which are fixedly connected to both sides of the connecting sleeve 1 and arranged radially. The two connecting plates 11 on one connecting sleeve 1 correspond one-to-one with the two connecting plates 11 on the other connecting sleeve 1. When the two connecting sleeves 1 are fitted over the heating and ventilation pipe to form a complete circular pipe, the corresponding connecting plates 11 fit together. The two connecting plates 11 are detachably connected together; two auxiliary plates 12 are fixedly connected to the outside of the two connecting sleeves 1 respectively. The auxiliary plates 12 are arranged along the radial direction of the connecting sleeves 1 and are located in the middle of the arc of the connecting sleeves 1; four arc plates 3 are provided, and two arc plates 3 are respectively corresponding to the two connecting sleeves 1. The auxiliary plates 12 and the two connecting plates 11 on the same connecting sleeve 1 respectively form two receiving spaces. Each arc plate 3 corresponds to one receiving space. The two sides of the arc plate 3 are respectively connected to the auxiliary plates 12 and the connecting plates 11 on both sides of the receiving space; each receiving space is provided with a heat insulation layer 2 located in the receiving space.
[0029] By connecting the sleeve 1, connecting plate 11, auxiliary plate 12 and arc plate 3 to form a receiving space outside the HVAC pipe, the insulation layer 2 is placed in the receiving space. The installation of the insulation layer 2 can be completed without adhesive bonding. When the insulation layer 2 ages after long-term use, it can be replaced by simply removing the arc plate 3 and directly removing the insulation layer 2 in the receiving space. The replacement operation is convenient, and because there is no adhesive, there is no glue residue, which improves the fit of the insulation layer 2 after installation.
[0030] Specifically, the auxiliary plate 12 has two receiving grooves 13 on the side away from the connecting sleeve 1, and the connecting plate 11 also has a receiving groove 13 on the side close to the auxiliary plate 12. The receiving groove 13 extends through the connecting plate 11 and the auxiliary plate 12 on the side away from the connecting sleeve 1, and the receiving groove 13 extends through the connecting plate 11 and the auxiliary plate 12 along the axial direction of the connecting sleeve 1. The two sides of the arc plate 3 are respectively embedded in the two receiving grooves 13 on the side close to each other of the connecting plate 11 and the auxiliary plate 12.
[0031] Specifically, the arc plate 3 is provided with two bolts arranged along the axis of the connecting sleeve 1. The bolts are located in the middle of the arc direction of the arc plate 3. The bolt shank passes through the arc plate 3 along the radial direction of the connecting sleeve 1 and is threaded together with the connecting sleeve 1. The head of the bolt is pressed against the side of the arc plate 3 away from the connecting sleeve 1.
[0032] Specifically, a number of connecting rods 4 are arranged along the axial direction of the connecting sleeve 1 between the arc plate 3 and the connecting sleeve 1. The connecting rods 4 are located at the middle position of the arc plate 3 along the arc direction and are arranged along the radial direction of the connecting sleeve 1. The connecting rods 4 penetrate the insulation layer 2 located in the same accommodating space.
[0033] The connecting rod 4 prevents the insulation layer 2 from shifting within the containment space.
[0034] Specifically, the connecting rod 4 has a mating hole 14 on the outer wall of the connecting sleeve 1 at one end near the connecting sleeve 1, which mates with the end of the connecting rod 4; the connecting rod 4 has a connecting hole 31 on the inner wall of the arc plate 3 at one end near the arc plate 3, which mates with the end of the connecting rod 4.
[0035] Specifically, the connecting sleeve 1 is a metal connecting sleeve 1, and the connecting rod 4 is a magnetic connecting rod 4 that can be magnetically attracted to the metal connecting sleeve 1.
[0036] When installing the insulation structure, first fix the connecting sleeve 1 to the outside of the HVAC pipe, then install the connecting rod 4 into the corresponding mating hole 14 by magnetic attraction, then insert the insulation layer 2 onto the connecting rod 4 and push it into the receiving space, so as to pre-fix the insulation layer 2 by the connecting rod 4, and then fix the arc plate 3 by bolts.
[0037] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A heating, ventilation, and air conditioning (HVAC) duct insulation structure, characterized in that: Includes a connecting sleeve (1), wherein the connecting sleeve (1) is configured as a semi-circular pipe and there are two connecting sleeves (1), which are fitted onto the outside of the HVAC pipe to form a complete circular pipe; Connecting plate (11), each connecting sleeve (1) is provided with two connecting plates (11), the two connecting plates (11) are fixedly connected to both sides of the connecting sleeve (1) and the connecting plates (11) are arranged along the radial direction of the connecting sleeve (1). The two connecting plates (11) on one connecting sleeve (1) correspond one-to-one with the two connecting plates (11) on the other connecting sleeve (1). When the two connecting sleeves (1) are fitted outside the heating and ventilation pipe to form a complete circular pipe, the corresponding two connecting plates (11) are fitted together, and the corresponding two connecting plates (11) can be detachably connected together. Auxiliary plate (12): Two auxiliary plates (12) are fixedly connected to the outside of the two connecting sleeves (1). The auxiliary plates (12) are set along the radial direction of the connecting sleeves (1) and the auxiliary plates (12) are located in the middle of the arc of the connecting sleeves (1). Arc plate (3), four arc plates (3) are provided, two connecting sleeves (1) correspond to two arc plates (3) respectively, auxiliary plate (12) and two connecting plates (11) on the same connecting sleeve (1) form two accommodating spaces respectively, each arc plate (3) corresponds to one accommodating space, and the two sides of the arc plate (3) are respectively connected to the auxiliary plate (12) and the connecting plate (11) on both sides of the accommodating space; And an insulation layer (2), each containing space is provided with an insulation layer (2) located within the containing space.
2. The HVAC duct insulation structure according to claim 1, characterized in that: The auxiliary plate (12) has two receiving grooves (13) on the side away from the connecting sleeve (1) on both sides. The connecting plate (11) also has a receiving groove (13) on the side close to the auxiliary plate (12). The receiving groove (13) penetrates the connecting plate (11) and the auxiliary plate (12) on the side away from the connecting sleeve (1), and the receiving groove (13) penetrates the connecting plate (11) and the auxiliary plate (12) along the axial direction of the connecting sleeve (1). The two sides of the arc plate (3) are respectively embedded into the two receiving grooves (13) of the connecting plate (11) and the auxiliary plate (12) on the side close to each other.
3. The HVAC duct insulation structure according to claim 2, characterized in that: The arc plate (3) is provided with two bolts arranged along the axis of the connecting sleeve (1). The bolts are located in the middle of the arc direction of the arc plate (3). The bolt threaded part penetrates the arc plate (3) along the radial direction of the connecting sleeve (1) and is threaded together with the connecting sleeve (1). The head of the bolt is pressed against the side of the arc plate (3) away from the connecting sleeve (1).
4. The HVAC duct insulation structure according to claim 3, characterized in that: A plurality of connecting rods (4) are arranged between the arc plate (3) and the connecting sleeve (1) along the axial direction of the connecting sleeve (1). The connecting rods (4) are located at the middle position of the arc plate (3) along the arc direction. The connecting rods (4) are arranged along the radial direction of the connecting sleeve (1). The connecting rods (4) penetrate the insulation layer (2) located in the same accommodating space.
5. The HVAC duct insulation structure according to claim 4, characterized in that: The connecting rod (4) has a mating hole (14) on the outer wall of the connecting sleeve (1) and which is matched with the end of the connecting rod (4) near the connecting sleeve (1); The connecting rod (4) has a connecting hole (31) on the inner wall of the arc plate (3) at one end near the arc plate (3), and the connecting hole (31) is engaged with the end of the connecting rod (4).
6. The HVAC duct insulation structure according to claim 5, characterized in that: The connecting sleeve (1) is a metal connecting sleeve, and the connecting rod (4) is a magnetic connecting rod that can be magnetically attracted to the metal connecting sleeve.
7. The HVAC duct insulation structure according to claim 6, characterized in that: The two corresponding connecting plates (11) are detachably connected together by countersunk bolts (5). The screw of the countersunk bolt (5) passes through one of the connecting plates (11) and is threaded together with the other connecting plate (11).