Water supply and drainage device for building pipeline fire fighting
By using a combination of locking discs, fixing bolts, and anti-loosening springs in building pipe connections, the sealing problem caused by flange drilling is solved, achieving efficient sealing and a stable pipe connection, and simplifying the installation process.
Patent Information
- Application Number
- CN202423196917.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-24
AI Technical Summary
In existing building pipe connections, drilling holes in flanges affects the sealing effect, resulting in poor sealing performance, and the fixing process is complicated and difficult to guarantee stability.
The flange is limited and sealed by two interlocking fixing discs and fixing bolts, combined with anti-loosening springs, and by using claws and sealing gaskets. The annular limiting groove and elastic sealing gasket compensate for dimensional errors, and the handle facilitates installation.
It improves the sealing and stability of pipe connections, simplifies the installation process, enhances the sealing effect and prevents loosening, and has a high aesthetic appeal.
Smart Images

Figure CN223499016U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pipeline water supply and drainage, and in particular relates to a water supply and drainage device for fire protection of building pipelines. Background Technology
[0002] Water supply and drainage is an important system in buildings or infrastructure, mainly used for the supply and discharge of water. It involves two major functions: water supply and drainage, ensuring that the water resources management of buildings or facilities can be carried out efficiently, conveniently, and safely.
[0003] In building pipeline connections, flange connections are typically used to ensure the stability and sealing of the connection. However, the connection and fixing of pipelines usually requires aligning the flanges and gasket holes at both ends, and then fixing them with bolts and nuts. Since drilling holes in the flanges is required, it may affect the flatness of the flange surface, thereby indirectly affecting the sealing effect of the flanges and preventing the flanges from fully exerting their sealing and tightening capabilities. Utility Model Content
[0004] The purpose of this utility model embodiment is to provide a water supply and drainage device for fire protection of building pipelines, which aims to solve the problems mentioned in the background art.
[0005] This utility model embodiment is implemented as follows: a building pipeline fire protection water supply and drainage device includes two pipes, a sealing gasket clamped between the two pipes, and a fixing assembly fitted on the outside of the pipe ends. A flange is fixedly installed at the end of each pipe, and the sealing gasket is installed between the two flanges. The fixing assembly includes two fixing discs, multiple fixing bolts, and multiple anti-loosening springs. The two fixing discs are installed together facing each other. A slot is fixedly opened on the outside of each fixing disc, and multiple claws are evenly distributed in a ring within the slot. Multiple mounting holes are fixedly opened on the outside of each fixing disc corresponding to the multiple fixing bolts. Movable grooves are fixedly opened inside the mounting holes located on the inside of the fixing bolts. The anti-loosening springs are movably fitted on the outside of the fixing bolts and located within the movable grooves. The anti-loosening springs press against the bottom end of the movable groove and the bottom end of the limiting groove.
[0006] As a further embodiment of this utility model: the flange is configured as a disc-shaped structure, and a limiting groove is fixed on the outer side of the flange corresponding to the fixing bolt.
[0007] As a further embodiment of this utility model: the limiting groove is configured as an annular square groove, the width of the limiting groove is greater than the major diameter of the fixing bolt, and the end of the fixing bolt is movably located within the limiting groove.
[0008] As a further embodiment of this utility model: the sealing gasket is configured as an annular structure with the same shape as the side of the flange, the sealing gasket is made of elastic material, and the two sides of the sealing gasket are pressed into contact with the surface of the flange.
[0009] As a further embodiment of this utility model: the claw is configured as an "L"-shaped curved plate, the distance between adjacent claws is greater than or equal to the length of the claw, and the claws on the outer sides of the two fixed disks engage with each other.
[0010] As a further embodiment of this utility model: multiple handles are evenly distributed and fixedly arranged in a ring on the outer side of the fixed plate, and the handles are configured as columnar structures.
[0011] The beneficial effects of this utility model are as follows:
[0012] 1. The present invention provides a water supply and drainage device for fire protection of building pipelines. The flange is limited by two interlocking fixed discs, which facilitates the connection of the pipeline. Since both the flange and the gasket are complete surfaces, the sealing between the two pipelines can be greatly guaranteed. The interlocking of the set claws and the pressing of the flange with the fixing bolts can tighten the flange and the gasket, further improving the sealing effect. The anti-loosening spring pressing the movable groove and the flange can play a role in preventing loosening.
[0013] 2. The water supply and drainage device for fire protection of building pipelines provided in this embodiment of the utility model has a limiting groove to limit the fixing bolts, which facilitates the positioning of the fixing bolts. Its ring design improves the freedom of installation of the fixing plate, making the installation more convenient and faster.
[0014] 3. The water supply and drainage device for fire protection of building pipelines provided in this utility model embodiment can improve the sealing effect between two flanges by setting a sealing gasket, and can compensate for the dimensional error between two fixed plates, so that the fixing bolts can effectively press the flange and the limiting groove.
[0015] 4. The water supply and drainage device for fire protection of building pipelines provided in this utility model embodiment has a handle that makes it easy for installers to grip during installation, thereby facilitating the engagement of the claws by turning the handle. In addition, the handle can be made detachable, making it easy to disassemble after installation, thereby reducing the space occupied and improving the aesthetics of the device. Attached Figure Description
[0016] Figure 1 A three-dimensional structural diagram of a building pipeline fire protection water supply and drainage device provided for an embodiment of this utility model;
[0017] Figure 2A cross-sectional view of a building pipeline fire protection water supply and drainage device provided for an embodiment of this utility model;
[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0019] Figure 4 A three-dimensional structural diagram of a fixing plate for a fire-fighting water supply and drainage device for building pipelines, provided for an embodiment of this utility model.
[0020] In the attached diagram: pipe 1, flange 11, limit groove 12, sealing gasket 2, fixing component 3, fixing plate 31, slot 311, claw 312, handle 313, mounting hole 314, movable groove 315, fixing bolt 32, anti-loosening spring 33. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages 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.
[0022] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0023] like Figures 1 to 4 As shown in the figure, a water supply and drainage device for fire protection of building pipelines is provided in one embodiment of the present invention. It includes two pipes 1, a sealing gasket 2 clamped between the two pipes 1, and a fixing component 3 fitted on the outside of the end of the pipe 1. A flange 11 is fixedly provided at the end of the pipe 1, and the sealing gasket 2 is installed between the two flanges 11. The fixing component 3 includes two fixing discs 31, a plurality of fixing bolts 32, and a plurality of anti-loosening springs 33. The two fixing discs 31 are installed together facing each other. A slot 311 is fixedly opened on the outside of the fixing disc 31. A plurality of claws 312 are fixedly fixedly arranged in a ring evenly in the slot 311. A plurality of mounting holes 314 are fixedly provided on the outside of the fixing bolts 32. The mounting holes 314 are located inside the fixing bolts 32 and have movable grooves 315 fixedly opened on the inside. The anti-loosening springs 33 are movably fitted on the outside of the fixing bolts 32 and located in the movable grooves 315. The anti-loosening springs 33 press against the bottom end of the movable grooves 315 and the bottom end of the limiting grooves 12.
[0024] In one embodiment of this utility model, the flange 11 is limited by two interlocking fixed discs 31, which facilitates the connection of the pipeline. Since both the flange 11 and the sealing gasket 2 are complete surfaces, the sealing performance between the two pipelines 1 can be greatly guaranteed. Furthermore, the flange 11 and the sealing gasket 2 can be pressed together by the interlocking claws 312 and the fixing bolts 32, which further improves the sealing effect. The anti-loosening spring 33 can play a role in preventing loosening by pressing the movable groove 315 and the flange 11.
[0025] like Figure 2 and Figure 3 As shown, in another embodiment of the present invention, the flange 11 is configured as a disc-shaped structure, and the flange 11 is fixedly provided with a limiting groove 12 on the outer side corresponding to the fixing bolt 32.
[0026] Specifically, the limiting groove 12 is configured as an annular square groove, the width of the limiting groove 12 is greater than the major diameter of the fixing bolt 32, and the end of the fixing bolt 32 is movably located within the limiting groove 12.
[0027] In one embodiment of this utility model, the limiting groove 12 is provided to limit the fixing bolt 32, which facilitates the positioning of the fixing bolt 32. Its ring-shaped design improves the freedom of installation of the fixing plate 31, making the installation more convenient and faster.
[0028] like Figure 2 and Figure 3 As shown, in another embodiment of the present invention, the sealing gasket 2 is configured as an annular structure with the same shape as the side of the flange 11, the sealing gasket 2 is made of elastic material, and the two sides of the sealing gasket 2 are pressed into contact with the surface of the flange 11.
[0029] In one embodiment of this utility model, the sealing gasket 2 can improve the sealing effect between the two flanges 11 and compensate for the dimensional error between the two fixed plates 31, so that the fixing bolts 32 can effectively press the flanges 11 and the limiting grooves 12.
[0030] like Figure 2 and Figure 4 As shown, in another embodiment of this utility model, the claw 312 is set as an "L" shaped curved plate, the distance between adjacent claws 312 is greater than or equal to the length of the claw 312, and the claws 312 provided on the outer side of the two fixing disks 31 engage with each other.
[0031] In one embodiment of this utility model, the claws 312 provided on both sides of the fixing plate 31 can engage with each other to fix and limit the fixing plate 31, which facilitates quick pre-positioning of the pipeline. Then, the fixing bolts 32 are used to tighten the flange 11, thereby connecting the two pipelines.
[0032] like Figure 1 and Figure 4 As shown, in another embodiment of the present invention, a plurality of handles 313 are evenly distributed and fixed on the outer side of the fixed plate 31 in a ring shape, and the handles 313 are configured as columnar structures.
[0033] In one embodiment of this utility model, the handle 313 is designed to facilitate gripping by the installer during installation, thereby making it easy to control the engagement between the claws 312 by turning the handle 313. In addition, the handle 313 can be designed to be detachable, making it easy to disassemble after installation, thereby reducing the space occupied and improving the aesthetics of the device.
[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0035] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0036] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A water supply and drainage device for fire protection of building pipelines, comprising two pipes (1), a sealing gasket (2) clamped between the two pipes (1), and a fixing assembly (3) fitted onto the outside of the end of the pipes (1), characterized in that, A flange (11) is fixedly installed at the end of the pipe (1). The sealing gasket (2) is installed between the two flanges (11). The fixing assembly (3) includes two fixing discs (31), multiple fixing bolts (32) and multiple anti-loosening springs (33). The two fixing discs (31) are installed together in opposite directions. A slot (311) is fixedly opened on the outside of the fixing disc (31). Multiple claws (312) are fixedly fixedly arranged in a ring in the slot (311). Multiple mounting holes (314) are fixedly arranged on the outside of the fixing disc (31) corresponding to the multiple fixing bolts (32). The mounting holes (314) are fixedly opened with movable grooves (315) on the inside of the fixing bolts (32). The anti-loosening springs (33) are movably fitted on the outside of the fixing bolts (32) and located in the movable grooves (315). The anti-loosening springs (33) press against the bottom end of the movable grooves (315) and the bottom end of the limiting grooves (12).
2. A water supply and drainage device for fire protection of building pipelines according to claim 1, characterized in that, The flange (11) is configured as a disc-shaped structure, and the flange (11) is fixed with a limit groove (12) on the outside corresponding to the fixing bolt (32).
3. A water supply and drainage device for fire protection of building pipelines according to claim 2, characterized in that, The limiting groove (12) is configured as an annular square groove. The width of the limiting groove (12) is greater than the major diameter of the fixing bolt (32). The end of the fixing bolt (32) is movably located within the limiting groove (12).
4. A water supply and drainage device for fire protection of building pipelines according to claim 2, characterized in that, The sealing gasket (2) is configured as an annular structure with the same shape as the side of the flange (11). The sealing gasket (2) is made of elastic material. The two sides of the sealing gasket (2) are pressed into contact with the surface of the flange (11).
5. A water supply and drainage device for fire protection of building pipelines according to claim 1, characterized in that, The claw (312) is set as an "L" shaped curved plate, the distance between adjacent claws (312) is greater than or equal to the length of the claw (312), and the claws (312) set on the outer side of the two fixed disks (31) engage with each other.
6. A water supply and drainage device for fire protection of building pipelines according to claim 1, characterized in that, The outer side of the fixed plate (31) is provided with a plurality of handles (313) evenly distributed in a ring, and the handles (313) are configured as columnar structures.