Water supply and drainage anti-freezing device for municipal engineering
By designing limiting components and a sealed limiting shell, the problem of poor fixation of the insulation layer in the water supply and drainage antifreeze device of municipal engineering was solved, achieving tight wrapping of the insulation cotton and sealing of the joints, which significantly improved the antifreeze effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN WEIZHOU CONSTRUCTION ENGINEERING CO LTD
- Filing Date
- 2025-03-17
- Publication Date
- 2026-05-05
AI Technical Summary
The insulation layer of existing municipal engineering water supply and drainage antifreeze devices is poorly fixed, resulting in heat loss, poor insulation effect, and difficulty in effectively preventing pipe freezing.
The limiting components include telescopic extrusion parts, sealing limiting shells, and connecting parts. The flange ring is connected by fixing bolts to ensure that the insulation cotton is tightly wrapped around the surface of the water supply and drainage pipes. A sealing limiting shell is set at the connection to improve the sealing and insulation effect.
This achieves tight wrapping of the insulation cotton and effective sealing of the joints, significantly improving the antifreeze effect of the water supply and drainage pipes, preventing heat loss, and enhancing the antifreeze performance of the pipes.
Smart Images

Figure CN224201309U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water supply and drainage antifreeze technology, specifically to an antifreeze device for water supply and drainage in municipal engineering. Background Technology
[0002] In cold regions, water supply and drainage systems in municipal engineering projects face the risk of freezing, especially in winter. To prevent pipes and equipment from freezing and being damaged in low-temperature environments, antifreeze devices are needed to prevent pipes from freezing.
[0003] Chinese utility model patent application number 202421276682.4 discloses an antifreeze device for building water supply and drainage. The above technical solution uses an insulation sleeve, a first arc-shaped clamp, a second arc-shaped clamp, and a threaded rod. The insulation sleeve is fitted onto the inlet pipe and the outlet pipe respectively. Then, the first arc-shaped clamp and the second arc-shaped clamp are pushed to contact the insulation sleeve. When the first arc-shaped clamp and the second arc-shaped clamp are in contact with the insulation sleeve, the threaded rod can be rotated on the first arc-shaped clamp and pass through the second arc-shaped clamp, so that the first arc-shaped clamp and the second arc-shaped clamp fix the insulation sleeve. This solves the technical problem that current antifreeze devices generally wrap the outside of the water supply and drainage pipe with an insulation layer to insulate the inside of the pipe. However, the insulation effect of this insulation layer is limited and it is very easy to fall off, causing inconvenience in use.
[0004] However, in actual use, the above technical solution can only limit the insulation cotton in some parts, while the fixing effect of the insulation cotton in other parts is difficult to guarantee. In some parts, the insulation cotton will not be tightly attached due to reduced adhesion, resulting in air bubbles. This leads to heat loss through the air and poor insulation effect, making it difficult to achieve a good insulation effect for the pipeline.
[0005] Therefore, a freeze protection device for water supply and drainage in municipal engineering is proposed. Utility Model Content
[0006] To address the problems existing in the prior art, this utility model provides a water supply and drainage antifreeze device for municipal engineering.
[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0008] A municipal engineering water supply and drainage antifreeze device includes a water supply and drainage pipe assembly, insulation cotton, and a limiting component that limits the insulation cotton. The water supply and drainage pipe assembly includes a first water supply and drainage pipe and a second water supply and drainage pipe. Each end of the first water supply and drainage pipe and the second water supply and drainage pipe is provided with a flange ring. Adjacent flange rings are fixedly connected by fixing bolts. The limiting component includes a telescopic extrusion component that extrudes the outer side of the insulation layer, a sealing limiting shell that insulates the connection between the first water supply and drainage pipe and the second water supply and drainage pipe, and a connecting component that fixes the sealing limiting shell.
[0009] Furthermore, the telescopic extrusion component includes a first arc-shaped plate and a second arc-shaped plate, with the second arc-shaped plate slidably engaged with the first arc-shaped plate.
[0010] Furthermore, the limiting component also includes a sealing limiting component, which includes a sealing limiting shell. The sealing limiting shell is disposed at both ends of the first arc-shaped plate and the second arc-shaped plate, and an insulation layer is disposed inside the sealing limiting shell.
[0011] Furthermore, the connecting component includes two connecting plates disposed on the corresponding side of the sealing and limiting housing, and the two connecting plates in corresponding upper and lower positions are connected by connecting bolts.
[0012] Furthermore, the insulation cotton is wrapped around the outside of the first and second water supply and drainage pipes, and the inner curvature of the first and second arc-shaped plates is in contact with the insulation cotton.
[0013] Furthermore, the extrusion ends of the first arc-shaped plate, the second arc-shaped plate, and the sealing and limiting housing are all provided with sealing gaskets.
[0014] The beneficial effects of this utility model are as follows:
[0015] This invention utilizes insulating cotton to fully wrap the surfaces of the first and second water supply and drainage pipes, thus providing excellent insulation. A limiting component then evenly wraps the outer surface of the insulating cotton, preventing insufficient adhesion due to reduced stickiness. Simultaneously, the sealing limiting shell effectively seals and insulates the connection between the first and second water supply and drainage pipes, further enhancing its antifreeze properties. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the water supply and drainage pipe assembly structure of this utility model;
[0018] Figure 3This is a sectional view of the present invention;
[0019] Figure 4 This is a schematic diagram of the thermal insulation cotton limiting component of this utility model.
[0020] Reference numerals in the attached drawings: 1. Water supply and drainage pipe assembly; 2. Limiting component; 3. First water supply and drainage pipe; 4. Second water supply and drainage pipe; 5. Flange ring; 501. Fixing bolt; 6. Telescopic compression component; 601. First arc plate; 602. Second arc plate; 7. Sealing and limiting component; 701. Sealing and limiting housing; 702. Insulation layer; 8. Connecting component; 801. Connecting plate; 802. Connecting bolt; 9. Insulation cotton. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, 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. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0023] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0024] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model 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 utility model.
[0025] like Figure 1-4As shown, a municipal engineering water supply and drainage antifreeze device includes a water supply and drainage pipe assembly 1, insulation cotton 9, and a limiting member 2 that limits the insulation cotton 9. The water supply and drainage pipe assembly 1 includes a first water supply and drainage pipe 3 and a second water supply and drainage pipe 4. Each end of the first water supply and drainage pipe 3 and the second water supply and drainage pipe 4 is provided with a flange ring 5. Two adjacent flange rings 5 are fixedly connected by fixing bolts 501. The limiting member 2 includes a telescopic extrusion component 6 that extrudes the outer side of the insulation layer 702, and a sealing limiting shell 70 that insulates the connection between the first water supply and drainage pipe 3 and the second water supply and drainage pipe 4. 1. A connecting component 8 that fixes the sealing and limiting housing 701; specifically, the insulation cotton 9 can fully wrap the surface of the first water supply and drainage pipe 3 and the second water supply and drainage pipe 4, thus achieving a good insulation effect. Then, the limiting component 2 can evenly wrap the outer side of the insulation cotton 9, thus preventing insufficient adhesion after its adhesiveness decreases. At the same time, the sealing and limiting housing 701 can also achieve a good sealing and insulation effect at the connection between the first water supply and drainage pipe 3 and the second water supply and drainage pipe 4, thus further improving its antifreeze effect.
[0026] like Figure 3-4 As shown, the telescopic extrusion component 6 includes a first arc plate 601 and a second arc plate 602, with the second arc plate 602 slidably engaged with the first arc plate 601. Specifically, the first arc plate 601 and the second arc plate 602 can extend and retract, thus allowing for length adjustment of the first water supply pipe 3 and the second water supply pipe 4.
[0027] like Figure 3 As shown, the limiting component 2 also includes a sealing limiting component 7, which includes a sealing limiting housing 701. The sealing limiting housing 701 is disposed at both ends of the first arc plate 601 and the second arc plate 602. An insulation layer 702 is disposed inside the sealing limiting housing 701. Specifically, the insulation layer 702 inside the sealing limiting housing 701 can play a role in heat preservation.
[0028] like Figure 3-4 As shown, the connecting component 8 includes two connecting plates 801 disposed on the corresponding side of the sealing and limiting housing 701. The two connecting plates 801, which are in corresponding upper and lower positions, are connected by connecting bolts 802. Specifically, fixing the two connecting plates 801 by the connecting bolts 802 can fix the two sealing and limiting housings 701 that are fastened together.
[0029] like Figure 3As shown, the insulation cotton 9 is wrapped around the outside of the first water supply and drainage pipe 3 and the second water supply and drainage pipe 4, and the inner curvature of the first arc plate 601 and the second arc plate 602 is in contact with the insulation cotton 9; specifically, the connecting component 8 is used to fix the first arc plate 601, the second arc plate 602 and the sealing and limiting shell 701, which can tightly fix the insulation cotton 9.
[0030] like Figure 3-4 As shown, the compression ends of the first arc plate 601, the second arc plate 602, and the sealing and limiting housing 701 are all provided with sealing gaskets; specifically, the first arc plate 601, the second arc plate 602, and the sealing and limiting housing 701 are fastened together and fixed with the connecting component 8, which allows the upper and lower parts of the first arc plate 601, the second arc plate 602, and the sealing and limiting housing 701 to be compressed, thereby improving the sealing effect and further improving its antifreeze effect.
[0031] In summary: The first water supply and drainage pipe 3 and the second water supply and drainage pipe 4 can be connected by fixing bolt 501. The insulation cotton 9 is wrapped around the surface of the first water supply and drainage pipe 3 and the second water supply and drainage pipe 4 to keep them warm. Then, the first arc plate 601 and the second arc plate 602 are adjusted to a suitable length, and the sealing and limiting shell 701 is fastened to the outside of the connection end of the first water supply and drainage pipe 3 and the second water supply and drainage pipe 4, so that the first arc plate 601 and the second arc plate 602 squeeze the insulation cotton 9. Then, the connecting part 8 can be used to fix the upper and lower parts of the sealing and limiting shell 701. Thus, the first water supply and drainage pipe 3 and the second water supply and drainage pipe 4 are wrapped and fixed, which can seal the water supply and drainage pipe assembly 1 and its connection end, and further improve its antifreeze effect.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A water supply and drainage antifreeze device for municipal engineering, characterized in that, The system includes a water supply and drainage pipe assembly (1), insulation cotton (9), and a limiting component (2) that limits the insulation cotton (9). The water supply and drainage pipe assembly (1) includes a first water supply and drainage pipe (3) and a second water supply and drainage pipe (4). Each end of the first water supply and drainage pipe (3) and the second water supply and drainage pipe (4) is provided with a flange ring (5). Two adjacent flange rings (5) are fixedly connected by fixing bolts (501). The limiting component (2) includes a telescopic extrusion component (6) that extrudes the outer side of the insulation layer (702), a sealing limiting shell (701) that insulates the connection between the first water supply and drainage pipe (3) and the second water supply and drainage pipe (4), and a connecting component (8) that fixes the sealing limiting shell (701).
2. The antifreeze device for water supply and drainage in municipal engineering according to claim 1, characterized in that, The telescopic extrusion component (6) includes a first arc plate (601) and a second arc plate (602), wherein the second arc plate (602) is slidably engaged with the first arc plate (601).
3. The antifreeze device for water supply and drainage in municipal engineering according to claim 2, characterized in that, The limiting component (2) further includes a sealing limiting component (7), which includes a sealing limiting housing (701). The sealing limiting housing (701) is disposed at both ends of the first arc plate (601) and the second arc plate (602). An insulation layer (702) is disposed inside the sealing limiting housing (701).
4. A municipal engineering water supply and drainage antifreeze device according to claim 3, characterized in that, The connecting component (8) includes two connecting plates (801) disposed on the opposite side of the sealing and limiting housing (701), and the two connecting plates (801) in corresponding upper and lower positions are connected by connecting bolts (802).
5. A water supply and drainage antifreeze device for municipal engineering according to claim 2, characterized in that, The insulation cotton (9) is wrapped around the outside of the first water supply and drainage pipe (3) and the second water supply and drainage pipe (4), and the inner curvature of the first arc plate (601) and the second arc plate (602) is in contact with the insulation cotton (9).
6. A municipal engineering water supply and drainage antifreeze device according to claim 3, characterized in that, The extrusion ends of the first arc plate (601), the second arc plate (602), and the sealing and limiting housing (701) are all provided with sealing gaskets.
Citation Information
Patent Citations
Anti-freezing device for building water supply and drainage
CN222375560U