PE fire-fighting pipeline filled with fire-fighting liquid

Abstract

The utility model relates to a PE fire-fighting pipeline filled with fire-fighting liquid, which comprises a pipeline body, a fixed ring is fixedly arranged outside the pipeline body, a connecting rod is fixedly arranged outside the fixed ring, a screw rod is rotatably arranged outside the fixed ring, a movable ring is in threaded connection with the outside of the screw rod, and the movable ring is in threaded connection with the outside of the pipeline body. A movable rod is hinged to the outer portion of the movable ring, and a connecting hook is fixedly installed on the outer portion of the movable rod. According to the PE fire-fighting pipeline filled with the fire-fighting liquid, the fire-fighting liquid is added into the fire-fighting liquid pipeline through a water inlet head, and after the fire-fighting liquid pipeline is attached to a second PE pipeline, when a pipeline body located on the ground is lower than a pipeline body located underground and is stable, the fire-fighting liquid pipeline can circularly flow due to temperature difference, so that the pipeline body on the ground is prevented from being frozen; after the pipeline body is close to the fire hydrant connector, the two flanges are connected through the connecting hook, and the situation that normal flowing of water flow is affected due to the fact that the pipeline body and the fire hydrant connector fall off is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of PE pipes, in particular to a PE fire-fighting pipe filled with fire-fighting liquid. Background Art

[0002] PE pipes, also known as polyethylene pipes, have excellent resistance to most domestic and industrial chemicals and have very good electrical properties, especially high dielectric strength of insulation, making them very suitable for wires and cables. Medium to high molecular weight grades have excellent impact resistance, which is the case at room temperature and even at temperatures as low as -40 degrees Celsius.

[0003] Usually, fire hydrants at intervals are connected through PE pipes in highway tunnels. Since fire hydrants are mostly installed outdoors, in order to ensure the normal use of fire hydrants in extremely cold weather, PE pipes usually need to be antifreeze treated to prevent the PE pipes from breaking and the fire hydrants from being unable to be used normally. Therefore, a PE fire pipe filled with fire fighting fluid is proposed to solve the above problem. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a PE fire-fighting pipe filled with fire-fighting fluid, which has the advantages of increasing the antifreeze performance of the PE pipe, etc., and solves the problem that the spaced fire hydrants in highway tunnels are usually connected through PE pipes. Since fire hydrants are mostly installed outdoors, when encountering extremely cold weather, in order to ensure the normal use of fire hydrants, the PE pipes usually need to be antifreeze-treated to prevent the PE pipes from rupturing and the fire hydrants from being unable to be used normally.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a PE fire-fighting pipe filled with fire-fighting fluid, comprising a pipe body, a flange provided on the outside of the pipe body, a fire hydrant connector provided on the outside of the flange, a connecting structure provided on the outside of the pipe body, and a filling structure provided on the inside of the pipe body;

[0006] A fixed ring is fixedly installed on the outside of the pipe body, a connecting rod is fixedly installed on the outside of the fixed ring, a screw is rotatably installed on the outside of the fixed ring, a movable ring is threadedly connected to the outside of the screw, a movable rod is hinged on the outside of the movable ring, and a connecting hook is fixedly installed on the outside of the movable rod;

[0007] A first PE pipe is provided inside the pipe body, a steel frame is fixedly installed inside the first PE pipe, a fire-fighting liquid pipe is fixedly installed outside the steel frame, a water inlet head is fixedly installed on one side of the fire-fighting liquid pipe, a water outlet head is fixedly installed on the other side of the fire-fighting liquid pipe, and a second PE pipe is fixedly installed outside the fire-fighting liquid pipe.

[0008] Furthermore, the fixing rings are respectively located on the left and right sides of the connecting rod and are fixedly connected to the connecting rod, and the screw rod passes through one of the fixing rings and extends to the outside of one of the fixing rings.

[0009] Furthermore, the screw rod passes through the movable ring and is threadedly connected to the movable ring, and the connecting rod passes through the movable ring and is movably connected to the movable ring.

[0010] Furthermore, a flange is provided on the outside of the fire hydrant connecting head, the two flanges are fitted together, and the connecting hook passes through the through hole of the flange and is movably connected to the flange.

[0011] Furthermore, the water outlet and the water inlet are in the same direction, and the fire-fighting fluid pipeline is located between the second PE pipeline and the steel skeleton.

[0012] Furthermore, the first PE pipe is located outside the steel frame, and the fixing ring is fixedly connected to the first PE pipe.

[0013] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0014] The PE fire-fighting pipe filled with fire-fighting liquid adds the fire-fighting liquid into the fire-fighting liquid pipe through the water inlet head. After the fire-fighting liquid pipe is fitted with the second PE pipe, when the pipe body on the ground is lower than the pipe body underground and is stable, the fire-fighting liquid pipe will circulate due to the temperature difference, thereby preventing the pipe body on the ground from freezing. After the pipe body is brought close to the fire hydrant connector, the two flanges are connected by a connecting hook to prevent the pipe body from falling off from the fire hydrant connector and affecting the normal flow of water. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the structural plan of the utility model;

[0016] Figure 2 This is a side view of the filling structure of the utility model;

[0017] Figure 3 This is a cross-sectional view of the filling structure of the present invention.

[0018] In the figure: 1. Pipe body; 2. Flange; 3. Fire hydrant connector; 4. Connection structure; 401. Fixed ring; 402. Connecting rod; 403. Screw; 404. Movable ring; 405. Movable rod; 406. Connecting hook; 5. Filling structure; 501. First PE pipe; 502. Steel skeleton; 503. Fire-fighting fluid pipe; 504. Water inlet; 505. Water outlet; 506. Second PE pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the first embodiment, Figure 1 In the figure, a PE fire-fighting pipe filled with fire-fighting fluid includes a pipe body 1, a flange 2 is provided on the outside of the pipe body 1, a fire hydrant connector 3 is provided on the outside of the flange 2, a connecting structure 4 is provided on the outside of the pipe body 1, and a filling structure 5 is provided on the inside of the pipe body 1.

[0021] The connection points of the flanges 2 are both provided with sealing rings. When the two flanges 2 are fitted together, the two flanges 2 are fixed by the connecting hooks 406 to prevent the pipe body 1 from being separated from the fire hydrant connector 3.

[0022] In the second embodiment, Figure 1 In the figure, a fixed ring 401 is fixedly installed on the outside of the pipe body 1, a connecting rod 402 is fixedly installed on the outside of the fixed ring 401, a screw 403 is rotatably installed on the outside of the fixed ring 401, the external thread of the screw 403 is connected to the movable ring 404, the external of the movable ring 404 is hinged with a movable rod 405, and the external of the movable rod 405 is fixedly installed with a connecting hook 406.

[0023] The connecting rod 402 limits the range of motion of the movable ring 404 , and the movable ring 404 is driven to move by rotating the screw rod 403 , so that the connecting hook 406 approaches the flange 2 and fixes the flange 2 .

[0024] Example 3, in Figure 2 In the figure, a first PE pipe 501 is arranged inside the pipe body 1, a steel frame 502 is fixedly installed inside the first PE pipe 501, a fire-fighting liquid pipe 503 is fixedly installed outside the steel frame 502, a water inlet 504 is fixedly installed on one side of the fire-fighting liquid pipe 503, a water outlet 505 is fixedly installed on the other side of the fire-fighting liquid pipe 503, and a second PE pipe 506 is fixedly installed outside the fire-fighting liquid pipe 503.

[0025] The pipe body 1 is fixed with plain concrete during installation. The water inlet 504 and the water outlet 505 are located on the same side, which is convenient for injecting fire-fighting fluid. The fire-fighting fluid pipeline 503 is serpentinely wrapped around the second PE pipe 506, which can effectively even out the temperature inside the second PE pipe 506.

[0026] To sum up, the PE fire-fighting pipe filled with fire-fighting liquid adds the fire-fighting liquid into the fire-fighting liquid pipe 503 through the water inlet head 504. After the fire-fighting liquid pipe 503 is fitted with the second PE pipe 506, when the pipe body 1 on the ground is lower than the pipe body 1 underground and is stable, the fire-fighting liquid pipe 503 will circulate due to the temperature difference, thereby preventing the pipe body 1 on the ground from freezing. After the pipe body 1 and the fire hydrant connector 3 are brought close to each other, the two flanges 2 are connected by the connecting hook 406 to prevent the pipe body 1 from falling off from the fire hydrant connector 3, which affects the normal flow of water. This solves the problem of connecting spaced fire hydrants through PE pipes in highway tunnels. Since fire hydrants are mostly installed outdoors, in order to ensure the normal use of fire hydrants in extremely cold weather, it is usually necessary to perform antifreeze treatment on the PE pipe to prevent the PE pipe from breaking and the fire hydrant from being unable to be used normally.

[0027] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PE fire-fighting pipe filled with fire-fighting fluid, comprising a pipe body (1), characterized in that: The outside of the pipe body (1) is provided with a flange (2), the outside of the flange (2) is provided with a fire hydrant connector (3), the outside of the pipe body (1) is provided with a connection structure (4), and the inside of the pipe body (1) is provided with a filling structure (5); The pipe body (1) is fixedly mounted with a fixed ring (401) on the outside, the fixed ring (401) is fixedly mounted with a connecting rod (402) on the outside, the fixed ring (401) is rotatably mounted with a screw rod (403) on the outside, the screw rod (403) is threadedly connected to a movable ring (404) on the outside, the movable ring (404) is hinged with a movable rod (405) on the outside, and the movable rod (405) is fixedly mounted with a connecting hook (406) on the outside; A first PE pipe (501) is provided inside the pipe body (1), a steel frame (502) is fixedly installed inside the first PE pipe (501), a fire-fighting liquid pipe (503) is fixedly installed outside the steel frame (502), a water inlet (504) is fixedly installed on one side of the fire-fighting liquid pipe (503), a water outlet (505) is fixedly installed on the other side of the fire-fighting liquid pipe (503), and a second PE pipe (506) is fixedly installed outside the fire-fighting liquid pipe (503).

2. A PE fire-fighting pipe filled with fire-fighting fluid according to claim 1, characterized in that: The fixing rings (401) are respectively located on the left and right sides of the connecting rod (402) and are fixedly connected to the connecting rod (402). The screw rod (403) passes through one of the fixing rings (401) and extends to the outside of one of the fixing rings (401).

3. The PE fire-fighting pipe filled with fire-fighting fluid according to claim 1, characterized in that: The screw rod (403) passes through the movable ring (404) and is threadedly connected to the movable ring (404), and the connecting rod (402) passes through the movable ring (404) and is movably connected to the movable ring (404).

4. The PE fire-fighting pipe filled with fire-fighting fluid according to claim 1, characterized in that: A flange (2) is provided on the outside of the fire hydrant connector (3), the two flanges (2) are fitted together, and the connecting hook (406) passes through the through hole of the flange (2) and is movably connected to the flange (2).

5. The PE fire-fighting pipe filled with fire-fighting fluid according to claim 1, characterized in that: The water outlet (505) and the water inlet (504) are in the same direction, and the fire-fighting liquid pipeline (503) is located between the second PE pipeline (506) and the steel skeleton (502).

6. The PE fire-fighting pipe filled with fire-fighting fluid according to claim 1, characterized in that: The first PE pipe (501) is located outside the steel frame (502), and the fixing ring (401) is fixedly connected to the first PE pipe (501).

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