Polyurethane thermal insulation pipe
By using insulation connecting sleeves and toothed groove structures in the stepped design of polyurethane insulation pipes, the problem of insufficient insulation performance at the connection point is solved, achieving a more efficient insulation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-04-07
AI Technical Summary
Existing polyurethane insulated pipes lack insulation performance at the joints, resulting in a decrease in insulation effect.
The stepped insulation pipe design enhances the insulation performance at the connection point by setting teeth and grooves between the insulation connecting sleeve and the insulation block, and using fasteners to fix them to the insulation pipe.
It improves the insulation effect at the connection of the insulation pipe, reduces heat loss, and enhances the overall insulation performance.
Smart Images

Figure CN224094081U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of polyurethane heat preservation pipe, in particular to a polyurethane heat preservation pipe. BACKGROUND
[0002] Polyurethane heat preservation pipe is a kind of composite finished pipeline with heat preservation and insulation function, generally by high-density polyethylene outer protective pipe, polyurethane rigid foam plastic heat preservation layer and working pipe is composed, is made using factory prefabricated production process.This pipeline is mainly used for heat preservation and insulation engineering of fluid medium, such as heating hot water, cooling water, central air conditioning supply and return water, high-viscosity crude oil, heavy oil, etc., generally laid in underground or indoor environment, and the existing polyurethane heat preservation pipe is as follows:
[0003] Such as patent publication No. CN217177827U discloses a kind of high-density polyurethane heat preservation pipe, belongs to heat preservation pipe technical field, its technical scheme main points include two heat preservation pipe main bodies, the end of two heat preservation pipe main bodies is provided with connecting structure, for the quick connection between adjacent two heat preservation pipe main bodies, specifically for connecting, the joint on one of heat preservation pipe main bodies is inserted from the left port of another heat preservation pipe main body, and moves to the inside of heat preservation pipe main body, until the position of the clamping groove on the bottom of the inner wall of heat preservation pipe main body and the clamping block is corresponded, by the rebound of spring, clamping block is driven to enter the inside of clamping groove, to fix the joint to the inside of heat preservation pipe main body, complete the quick connection between two heat preservation pipes, simple operation, save time and effort, without additional flange plate, greatly improve work efficiency, by the setting of sealing mechanism, effectively improve the sealing effect of the connection between two heat preservation pipes, facilitate the use of heat preservation pipe;
[0004] The above-mentioned utility model in actual operation, its main use connecting structure inserts the joint on heat preservation pipe main body and the left port of another heat preservation pipe main body, and makes heat preservation pipe main body move inside, until the position of the clamping groove on the bottom of the inner wall of heat preservation pipe main body and the clamping block is corresponded, to realize the installation between two heat preservation pipes, by the connecting structure in the above-mentioned scheme installs heat preservation pipe main body, although it can realize the fixation between two, but the connecting position between the two heat preservation pipes in the utility model in actual application does not have the structure of heat preservation, and the connecting position between the heat preservation pipes is easily caused without heat preservation performance, to cause the heat preservation effect between polyurethane heat preservation pipes to decline. SUMMARY
[0005] The utility model discloses the purpose is to solve the problem in prior art, propose a kind of polyurethane heat preservation pipe, can be conveyed arrangement to express.
[0006] To achieve the above object, the utility model provides a kind of polyurethane heat preservation pipe, including: heat preservation pipe one and heat preservation pipe two,
[0007] The opposite ends of the heat preservation tube one and the heat preservation tube two are arranged in steps;
[0008] A heat preservation connecting sleeve with a side wall having a notch is arranged between the heat preservation tube one and the heat preservation tube two;
[0009] A heat preservation block is connected to the heat preservation connecting sleeve;
[0010] A plurality of clamping teeth are fixedly connected to the inner walls of the heat preservation connecting sleeve and the heat preservation block, and clamping grooves are formed in the heat preservation tube one and the heat preservation tube two for the clamping teeth to enter;
[0011] A fixing member is arranged on the heat preservation block and the heat preservation connecting sleeve, and the fixing member can lock the heat preservation block and the heat preservation connecting sleeve on the heat preservation tube one and the heat preservation tube two.
[0012] Preferably, a sliding block is fixedly connected to the heat preservation block, a sliding groove is formed in the notch for the sliding block to enter, and a sealing ring one is fixedly connected to the heat preservation connecting sleeve one and the heat preservation block, and the sealing ring one can be attached to the heat preservation tube one and the heat preservation tube two.
[0013] Preferably, a sealing ring two is fixedly connected to the heat preservation connecting sleeve and the heat preservation block, and the sealing ring two is attached to the side walls of the heat preservation tube one and the heat preservation tube two.
[0014] Preferably, a sealing block is fixedly connected to the heat preservation tube one, and a sealing groove is formed in the heat preservation tube two for the sealing block to enter.
[0015] Preferably, the fixing member comprises a clamp, and the clamp is arranged on the heat preservation connecting sleeve and the heat preservation block.
[0016] Preferably, a clamping ring is fixedly connected to the heat preservation block and the heat preservation connecting sleeve, and a fixing groove is formed in the heat preservation tube one and the heat preservation tube two for the clamping ring to enter.
[0017] Compared with the prior art, the heat preservation connecting sleeve arranged between the heat preservation tube one and the heat preservation tube two connects the heat preservation tube one and the heat preservation tube two, and the clamping teeth are clamped in the clamping grooves, thereby limiting the heat preservation tube one and the heat preservation tube two, and then the fixing member fixes the heat preservation block and the heat preservation connecting sleeve on the heat preservation tube one and the heat preservation tube two, which can fix the heat preservation tube one and the heat preservation tube two and also can heat the connection between the heat preservation tube one and the heat preservation tube two, thereby reducing the decrease of the heat preservation effect between the heat preservation tubes due to the lack of heat preservation performance at the connection position between the heat preservation tubes, and further improving the heat preservation effect between the heat preservation tube one and the heat preservation tube two.
[0018] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description
[0019] Fig. 1 This is a schematic diagram of the structure of this utility model;
[0020] Fig. 2 This is a schematic diagram showing the position of the slide groove of this utility model;
[0021] Fig. 3 This is a schematic diagram showing the position of the sealing block of this utility model;
[0022] Fig. 4 This is a schematic diagram showing the location of the sealing groove in this utility model.
[0023] In the diagram: 1. Insulation pipe one; 2. Insulation pipe two; 3. Insulation connecting sleeve; 4. Insulation block; 5. Clip; 6. Clip groove; 7. Fixing component; 8. Sliding block; 9. Sliding groove; 10. Sealing ring one; 11. Sealing ring two; 12. Sealing block; 13. Clamp; 14. Clip ring; 15. Fixing groove; 16. Sealing groove. Detailed Implementation
[0024] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0025] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0026] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0028] like Figs. 1 to 4 This utility model discloses a polyurethane insulation pipe, including: insulation pipe 1 and insulation pipe 2, wherein insulation pipe 1 and insulation pipe 2 are made of polyurethane material, and the opposite ends of insulation pipe 1 and insulation pipe 2 are stepped to facilitate personnel to connect and install insulation pipe 1 and insulation pipe 2.
[0029] The heat insulation pipe in this utility model also includes:
[0030] An insulation connecting sleeve 3 with a notch is provided at the step between insulation pipe 1 and insulation pipe 2 so that insulation pipe 1 and insulation pipe 2 can be connected.
[0031] Insulation connecting sleeve 3 is set between insulation pipe 1 and insulation pipe 2. It is mainly used to connect insulation pipe 1 and insulation pipe 2 and to insulate the connection.
[0032] Insulation block 4 is inserted into the insulation connecting sleeve 3 and is mainly used to seal the connection between insulation pipe 1 and insulation pipe 2.
[0033] The locking teeth 5 and the locking groove 6 are provided, wherein the locking groove 6 is located on the insulation pipe 1 and the insulation pipe 2, and the locking teeth 5 can enter into the locking groove 6 to limit the insulation pipe 1 and the insulation pipe 2.
[0034] The fastener 7 is installed on the insulation block 4 and the insulation connecting sleeve 3, and is mainly used to fix the insulation block 4 and the insulation connecting sleeve 3 on the insulation pipe 1 and the insulation pipe 2.
[0035] Specifically, since a slider 8 is fixedly connected to the insulation block 4, and a groove 9 is provided on the notch for the slider 8 to enter, a sealing ring 10 is fixedly connected to both the insulation connecting sleeve 3 and the insulation block 4. The sealing ring 10 can be in contact with the insulation pipe 1 and the insulation pipe 2. Therefore, by the sealing ring 10 being in contact with the side wall of the insulation pipe 1 and the insulation pipe 2, the insulation pipe 1 and the insulation pipe 2 are sealed, thereby further improving the sealing effect of the insulation pipe 1 and the insulation pipe 2.
[0036] Specifically, sealing ring 2 11 is fixedly connected to both the insulation connecting sleeve 3 and the insulation block 4. The sealing ring 2 11 is in contact with the side wall of the insulation pipe 1 and the insulation pipe 2. Therefore, by the sealing ring 2 11 being in contact with the side wall of the insulation pipe 1 and the insulation pipe 2, the sealing effect of the insulation pipe 1 and the insulation pipe 2 is further improved.
[0037] Specifically, since a sealing block 12 is fixedly connected to the insulation pipe 1 and a sealing groove 16 is opened on the insulation pipe 2 for the sealing block 12 to enter, the sealing block 12 is inserted into the sealing groove 16, thereby achieving the sealing of the insulation pipe 1 and the insulation pipe 2, and further improving the sealing effect of the insulation pipe 1 and the insulation pipe 2.
[0038] Specifically, since the fastener 7 includes a clamp 13, which is installed on the insulation connecting sleeve 3 and the insulation block 4, the insulation connecting sleeve 3 and the insulation block 4 can be fixed to the insulation pipe 1 and the insulation pipe 2 by means of the clamp 13.
[0039] Specifically, the insulation block 4 and the insulation connecting sleeve 3 are fixedly connected with retaining rings 14, and the insulation pipe 1 and the insulation pipe 2 are provided with fixing grooves 15 for the retaining rings 14 to enter. Therefore, the retaining rings 14 enter the fixing grooves 15 through the arc-shaped retaining rings, thereby positioning the insulation block 4 and the insulation connecting sleeve 3 with the insulation pipe 1 and the insulation pipe 2.
[0040] The principle of this utility model is as follows: the insulation connecting sleeve 3 covers the insulation pipe 1 and the insulation pipe 2, and then the insulation block 4 is inserted into the insulation connecting sleeve 3 and the locking teeth 5 enter the locking groove 6, thereby achieving the positioning of the insulation pipe 1 and the insulation pipe 2. Once the insulation pipe 1 and the insulation pipe 2 are positioned, the fixing component 7 fixes the insulation block 4 and the insulation connecting sleeve 3 on the insulation pipe 1 and the insulation pipe 2.
[0041] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.
Claims
1. A polyurethane insulation pipe, comprising: Insulation pipe one (1) and insulation pipe two (2), characterized in that, The opposite ends of the insulation pipe one (1) and the insulation pipe two (2) are arranged in a stepped manner; An insulation connecting sleeve (3) with a notch in the side wall is provided between the insulation pipe one (1) and the insulation pipe two (2); An insulation block (4) is inserted into the insulation connecting sleeve (3); Several locking teeth (5) are fixedly connected to the inner walls of the insulation connecting sleeve (3) and the insulation block (4), and the first insulation pipe (1) and the second insulation pipe (2) are provided with locking grooves (6) for the locking teeth (5) to enter. The insulation block (4) and the insulation connecting sleeve (3) are provided with a fixing member (7), which can lock the insulation block (4) and the insulation connecting sleeve (3) onto the insulation pipe one (1) and the insulation pipe two (2).
2. The polyurethane insulation pipe according to claim 1, characterized in that, A slider (8) is fixedly connected to the insulation block (4), and a groove (9) is provided on the notch for the slider (8) to enter. A sealing ring (10) is fixedly connected to both the insulation connecting sleeve (3) and the insulation block (4). The sealing ring (10) can be attached to the insulation pipe (1) and the insulation pipe (2).
3. A polyurethane insulation pipe according to claim 2, characterized in that, A sealing ring 2 (11) is fixedly connected to both the insulation connecting sleeve (3) and the insulation block (4), and the sealing ring 2 (11) is attached to the side wall of the insulation pipe 1 (1) and the insulation pipe 2 (2).
4. A polyurethane insulation pipe according to claim 3, characterized in that, A sealing block (12) is fixedly connected to the first insulation pipe (1), and a sealing groove (16) is provided on the second insulation pipe (2) for the sealing block (12) to enter.
5. A polyurethane insulation pipe according to claim 1, characterized in that, The fastener (7) includes a clamp (13), which is installed on the thermal insulation connecting sleeve (3) and the thermal insulation block (4).
6. A polyurethane insulation pipe according to claim 1, characterized in that, The insulation block (4) and the insulation connecting sleeve (3) are both fixedly connected with retaining rings (14), and the insulation pipe one (1) and the insulation pipe two (2) are provided with fixing grooves (15) for the retaining rings (14) to enter.
Citation Information
Patent Citations
High-density polyurethane thermal insulation pipeline
CN217177827U