Sealing connection device for fire-fighting pipeline

Abstract

The utility model relates to the field of firefighting pipeline connection, in particular to a firefighting pipeline sealing connection device. The fire-fighting pipeline sealing connection device comprises two sections of pipeline main bodies; a flange plate is fixed to the end of the pipeline body, and an extension pipe is fixed to the other end of the flange plate. A connecting ring frame is further arranged between the two sections of pipeline main bodies, the connecting ring frame comprises two sets of outer ring frames, an inner ring frame is connected between the two sets of outer ring frames in an embedded mode, inserting grooves allowing the extension pipes to be connected in an inserted mode are formed between the outer ring frames and the inner ring frame, and inflatable rubber rings are further fixed into the inserting grooves. According to the fire-fighting pipeline sealing connection device, the inflatable rubber ring serves as a main sealing structure and has higher adjustability, namely, the expansion degree of the inflatable rubber ring is changed by inflating gas into the inflatable rubber ring, so that the sealing effect can be improved, meanwhile, the connecting ring frame serves as a mounting structure of the inflatable rubber ring, and the sealing performance of the inflatable rubber ring is improved. The normal use can be ensured.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection protection, and in particular to a fire-fighting pipe sealing connection device. Background Technology

[0002] Firefighting pipelines are pipeline systems used to transport firefighting water or other extinguishing agents, and are an important component of fire protection systems.

[0003] A complete fire protection piping system consists of multiple sections of pipe fixedly connected together, with flange connections being the most common method. To further improve the sealing performance of pipe connections, flange gaskets are usually installed. However, under the influence of external factors such as compression and corrosion over a long period of time, the thickness of the flange gasket itself will decrease, leading to gaps and a reduction in its sealing effect.

[0004] Therefore, it is necessary to provide a new sealing connection solution for fire protection pipelines to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a sealing connection device for fire protection pipelines.

[0006] The fire-fighting pipeline sealing connection device provided by this utility model includes two pipeline body sections;

[0007] A flange is fixed to one end of the main body of the pipe, and an extension pipe is fixed to the other end of the flange;

[0008] A connecting ring frame is also provided between the two sections of the main pipe body. The connecting ring frame includes two sets of outer ring frames, and an inner ring frame is fitted between the two sets of outer ring frames. A slot for inserting and connecting the extension pipe is formed between the outer ring frame and the inner ring frame. An inflatable rubber ring is also fixed inside the slot.

[0009] Preferably, the flange is also provided with a bayonet.

[0010] Preferably, both sets of outer ring frames are semi-circular and have connecting seats fixed on their outer circumference. The connecting seats on the two sets of outer ring frames are fixed by bolts to form a complete ring, and the flange is bolted to the ring.

[0011] The outer ring frame is also fixed with a locking block that matches the bayonet.

[0012] Preferably, an annular groove is also provided on the inner circumference of the outer ring frame, and a rubber ring is fixed inside the annular groove;

[0013] The outer ring frame is also provided with a radially arranged through hole, which connects to the slot.

[0014] Preferably, the outer circumferential wall of the inner ring frame is fixed with an insert ring, which is embedded inside the ring groove.

[0015] Preferably, an air nozzle is installed on the inflatable rubber ring, and the air nozzle extends along the through hole to the outside of the outer ring frame.

[0016] Compared with related technologies, the fire-fighting pipeline sealing connection device provided by this utility model has the following beneficial effects:

[0017] This utility model provides a sealing connection for fire pipelines, in which an inflatable rubber ring is used as the main sealing structure. It has higher adjustability, that is, by filling it with gas, the degree of its expansion can be changed, thereby improving the sealing effect. At the same time, the connecting ring frame serves as the installation structure for the inflatable rubber ring, ensuring its normal use. Attached Figure Description

[0018] Figure 1 A schematic diagram of a preferred embodiment of the fire-fighting pipeline sealing connection provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the main body of the pipe shown in this utility model;

[0020] Figure 3 This is a schematic diagram of the connecting ring frame shown in this utility model. Figure 1 ;

[0021] Figure 4 This is a schematic diagram of the connecting ring frame shown in this utility model. Figure 2 ;

[0022] Figure 5 This is a schematic diagram of the structure of the inflatable rubber ring shown in this utility model.

[0023] The following are the labels in the diagram: 1. Pipe body; 11. Flange; 12. Extension pipe; 13. Bayonet; 2. Connecting ring frame; 21. Outer ring frame; 22. Locking block; 23. Inner ring frame; 24. Embedded ring; 25. Slot; 26. Rubber ring; 27. Through hole; 3. Inflatable rubber ring; 31. Air nozzle. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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.

[0025] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0027] 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.

[0028] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0029] Please see Figures 1 to 5 The present invention provides a fire-fighting pipeline sealing connection device, which includes two pipeline body sections 1;

[0030] A flange 11 is fixed at one end of the main pipe body 1, and an extension pipe 12 is fixed at the other end of the flange 11. A bayonet 13 is also provided on the flange 11.

[0031] A connecting ring frame 2 is also provided between the two main pipe sections 1. The connecting ring frame 2 includes two sets of outer ring frames 21. An inner ring frame 23 is fitted between the two sets of outer ring frames 21. A slot 25 is formed between the outer ring frame 21 and the inner ring frame 23 for the extension pipe 12 to be inserted and connected. An inflatable rubber ring 3 is also fixed inside the slot 25.

[0032] It should be noted that: in this device, a connecting ring frame 2 is set between the two pipe body sections 1, and both pipe body sections 1 are installed on the connecting ring frame 2 to achieve fixed assembly between the pipes; at the same time, the inner ring frame 23 in the connecting ring frame 2 is also cylindrical in shape, used to connect the two pipe body sections 1, thereby realizing normal water conveyance operation;

[0033] The connecting ring frame 2 includes an outer ring frame 21 and an inner ring frame 23. The inner ring frame 23 is concentrically fixed inside the outer ring frame 21, and a slot 25 is formed between the two. An extension tube 12 is provided at the end of the pipe body 1. The extension tube 12 can be inserted into the slot 25. An inflatable rubber ring 3 is also fixed inside the slot 25. Therefore, after the extension tube 12 is inserted into the slot 25, it can press against the inflatable rubber ring 3, and the inflatable rubber ring 3 is used to achieve a seal between the pipes. Compared with traditional flange gaskets, the inflatable rubber ring 3 can be filled with gas, which causes it to expand. After expansion, the contact between it and the extension tube 12 will be tighter, so the sealing effect will be better, and its adjustability will be higher.

[0034] In the embodiments of this utility model, please refer to Figure 3 and Figure 4 Both sets of outer ring frames 21 are semi-circular, and connecting seats are fixed on the outer circumference. The connecting seats on the two sets of outer ring frames 21 are fixed by bolts to form a complete ring, and the flange 11 is bolted to the ring.

[0035] The outer ring frame 21 is also fixed with a locking block 22 that is compatible with the bayonet 13.

[0036] It should be noted that: the outer ring frame 21 consists of two sets, which are fixed together with bolts to form a complete ring. The flange 11 can be fixed to the ring with bolts to achieve a stable connection between the two sets of pipe bodies 1. At the same time, the flange 11 has a bayonet 13, and the outer ring frame 21 has a locking block 22. Both have a positioning function. That is, after the locking block 22 is embedded into the bayonet 13, the threaded hole on the flange 11 can accurately correspond to the threaded hole on the outer ring frame 21, which facilitates the subsequent installation and fixing of bolts.

[0037] In the embodiments of this utility model, please refer to Figure 4 The outer ring frame 21 also has an annular groove on its inner circumference, and a rubber ring 26 is fixed inside the annular groove.

[0038] The outer ring frame 21 is also provided with a radially arranged through hole 27, which connects to the slot 25;

[0039] Meanwhile, an embedded ring 24 is fixed to the outer circumference of the inner ring frame 23, and the embedded ring 24 is embedded inside the ring groove.

[0040] It should be noted that the inner ring frame 21 is a whole and a retaining ring 24 is provided on it. The fixed inflatable rubber ring 3 presses against the extension tube 12 and the retaining ring 24, thereby enabling the sealing operation.

[0041] For the installation between the inner ring frame 23 and the outer ring frame 21, the insert ring 24 in the inner ring frame 23 is first embedded into the ring groove, and then the two outer ring frames 21 are fixed to achieve a stable connection between the outer ring frame 21 and the outer ring frame 23.

[0042] In the embodiments of this utility model, please refer to Figure 5 An air nozzle 31 is installed on the inflatable rubber ring 3, and the air nozzle 31 extends along the through hole 27 to the outside of the outer ring frame 21.

[0043] It should be noted that the air nozzle 31 extends from the through hole 27 to the outside of the outer ring frame 21, which facilitates the inflation of the rubber ring 3. At the same time, the split outer ring frame 21 facilitates the replacement of the rubber ring 3.

[0044] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0045] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fire-fighting pipeline sealing connection device, comprising two pipeline body sections (1), characterized in that: A flange (11) is fixed at one end of the pipe body (1), and an extension pipe (12) is fixed at the other end of the flange (11). A connecting ring frame (2) is also provided between the two sections of the main body of the pipe (1). The connecting ring frame (2) includes two sets of outer ring frames (21). An inner ring frame (23) is fitted between the two sets of outer ring frames (21). A slot (25) for the extension pipe (12) to be inserted and connected is formed between the outer ring frame (21) and the inner ring frame (23). An inflatable rubber ring (3) is also fixed inside the slot (25).

2. The fire-fighting pipeline sealing connection method according to claim 1, characterized in that, The flange (11) is also provided with a bayonet (13).

3. The fire-fighting pipeline sealing connection according to claim 2, characterized in that, Both sets of outer ring frames (21) are semi-circular and have connecting seats fixed on the outer circumference. The connecting seats on the two sets of outer ring frames (21) are fixed by bolts to form a complete ring, and the flange (11) is bolted to the ring. The outer ring frame (21) is also fixed with a locking block (22) that is compatible with the locking slot (13).

4. The fire-fighting pipeline sealing connection according to claim 3, characterized in that, A ring groove is also provided on the inner circumference of the outer ring frame (21), and a rubber ring (26) is fixed inside the ring groove. The outer ring frame (21) is also provided with a radially arranged through hole (27), which connects to the slot (25).

5. The fire-fighting pipeline sealing connection according to claim 4, characterized in that, The inner ring frame (23) has an embedded ring (24) fixed on its outer circumference wall, and the embedded ring (24) is embedded inside the ring groove.

6. The fire-fighting pipeline sealing connection according to claim 5, characterized in that, An air nozzle (31) is installed on the inflatable rubber ring (3), and the air nozzle (31) extends along the through hole (27) to the outside of the outer ring frame (21).

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