CN212178159U

CN212178159U - Special metal corrugated connecting pipe for fire fighting

Info

Publication number: CN212178159U
Application number: CN202020491299.6U
Authority: CN
Inventors: 王德明
Original assignee: Individual
Current assignee: Wang Xinyi
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2020-12-18
Anticipated expiration: 2030-04-07

Abstract

The utility model provides a special metal corrugated connecting pipe of fire control belongs to fire control connecting pipe technical field. It has solved current fire control pipe fitting and fire pipeline connection and can not be fine couple together the fire pipeline, the easy seepage's of junction problem. This special corrugated metal connecting pipe of fire control, including the corrugated metal body, the both ends of corrugated metal body have the connecting tube body that same axial set up respectively, and the tip of two connecting tube bodies is provided with the ring flange that is used for dismantling the connection with the fire tube axial respectively, is provided with the connecting device that makes the ring flange and the relative axial of the connecting tube body that corresponds link firmly between ring flange and the connecting tube body that corresponds. The utility model has reasonable and simple structure design and can bear the external force of 5 mpa; the junction with the fire control pipeline is difficult for appearing the circumstances such as extrusion dislocation leakage, tensile fracture leakage, avoids fire control incident, and structural stability is high, long service life.

Description

Special metal corrugated connecting pipe for fire fighting

Technical Field

The utility model belongs to the technical field of the fire control connecting pipe, a special metal corrugated connecting pipe of fire control is related to.

Background

According to the fire-fighting requirement, fire-fighting pipelines for fire extinguishing must be installed in a building, an indoor fire hydrant is arranged beside each layer of fire-fighting pipeline and is communicated with the fire-fighting pipelines, the indoor fire hydrant is a port with a valve and used as an indoor fixed fire-fighting facility of the building and the like, is usually installed in a fire hydrant box and is matched with equipment such as a fire hose, a water gun, a fire hose reel and the like for use.

The fire fighting pipeline comprises a pipeline for connecting the indoor fire hydrant and a pipeline for connecting the indoor spraying device, the indoor fire hydrant and the indoor spraying device are respectively connected with the indoor fire fighting pipeline through parts such as a three-way joint, a water source is provided for the indoor fire hydrant and the spraying device, and the fire fighting pipe is formed by connecting fire fighting pipe fittings.

Traditional fire-fighting pipe fittings are as follows as Chinese patent numbers: "201821188919.8" a stability fire control pipe fitting with connect fixed establishment, its concrete structure includes the pipe fitting body, the both ends outer wall of pipe fitting body is equallyd divide and is do not fixedly cup jointed first ring flange and second ring flange through the cementing layer, is equipped with bleeder mechanism in the pipe fitting body. The pipe fitting body is kept away from to first ring flange and second ring flange one side lateral wall all splices the flange pad that has the ring shape on corresponding the position, a plurality of screw holes that the shape size is the same are all seted up to the lateral wall of first ring flange and second ring flange on its corresponding position, a plurality of screw holes are arranged along the circumference equiangular and are set up, a plurality of guiding holes of arranging along the circumferencial direction equiangular are seted up on the lateral wall of first ring flange, a plurality of guiding holes are located respectively between per two adjacent screw holes, a plurality of guide posts corresponding with the guiding hole position of fixedly connected with on the lateral wall of second ring flange, guiding hole and guide post clearance fit.

In the structure, the stable fire fighting pipe fitting with the connecting and fixing mechanism is applied to a fire fighting pipeline of a building, the joint is easy to radially shift when the pipe fitting is butted with the fire fighting pipeline, and the pipe fitting is not tightly connected with a flange of the fire fighting pipeline; when using for a long time, this building is when being influenced by the building dead weight and sinking or slope, this fire control pipe fitting is in the time of being influenced by the building and sinking extrusion or slope tensile with the ring flange relative joint of fire control pipeline, this fire control pipe fitting and fire control pipeline's ring flange extrudees the dislocation to leak relatively easily, and tensile fracture leaks, and this fire control pipe fitting and fire control pipeline connection can not be fine couple together the fire control pipeline, the sealed effect of the junction of fire control pipeline can receive the influence, the easy seepage of junction of fire control pipeline, the fire control incident appears easily.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a simple structure, be connected closely difficult radial aversion with the fire control pipeline, be difficult for receiving the building extrusion or the tensile influence of slope that sinks, can not lead to being connected the special metal corrugated connecting pipe of fire control of seepage with the fire control pipeline.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a special corrugated metal connecting pipe of fire control, includes the corrugated metal body, the both ends of corrugated metal body have the connecting tube body that same axial set up respectively, the tip of two connecting tube bodies is provided with the ring flange that is used for dismantling the connection with the fire control tube axial respectively, its characterized in that, the connecting tube body between be provided with the connecting device that makes the ring flange and the relative axial of the connecting tube body that corresponds link firmly.

This special corrugated metal connecting pipe of fire control mainly is provided with the corrugated metal body in order to adapt to because the building sinks the extrusion or the tensile axial influence of slope, with the difficult condition such as extrusion dislocation leakage that appears in junction of fire control pipeline, tensile fracture leaks, be provided with connecting device between ring flange and the connecting tube body that corresponds, make the relative axial of ring flange and the connecting tube body that corresponds link firmly through connecting device, connection structure is stable, be connected with the fire control pipeline, convenient loading and unloading, closely be difficult for radial aversion with the fire control pipeline connection, long service life.

In foretell special metal corrugated connecting pipe of fire control, connecting device include that the interior terminal surface of ring flange has size, shape and connecting tube body assorted axial assembly groove, connecting tube body axial interference wear to establish in the axial assembly groove, when connecting tube body and axial assembly groove interference link firmly, and the tip axial of this connecting tube body supports and leans on the tank bottom at axial assembly groove, the middle part position of ring flange axial hole that has the axial and run through the ring flange, the axial hole run through the tank bottom of axial assembly groove and with the connecting tube body intercommunication. The purpose of setting up like this is that the stability of making the connection of connecting body and ring flange is high, long service life.

In the special metal corrugated connecting pipe for fire fighting, the edge of the notch of the axial assembly groove is provided with an annular welding position, and when the connecting pipe body is fixedly connected with the axial assembly groove in an interference manner, the welding material is fully welded in the annular welding position. The purpose of the added ring weld locations is to ensure stability of the connection of the connecting tube body and the flange.

In foretell special metal corrugated connection pipe of fire control, the cross section of the solder in the annular welding position personally submit isosceles right triangle, wherein a right-angle side and the ring flange welding of solder lean on, the hypotenuse of the isosceles right triangle of solder leans on with the connecting tube body welding, another right-angle side of solder supports between ring flange, connecting tube body. The purpose of setting up like this makes the welding area of solder and flange, connecting tube body big, and the fastness of welding is high.

In the metal corrugated connecting pipe special for fire fighting, an axial boss is arranged in the middle of the outer end face of the flange, and the axial hole penetrates through the middle of the axial boss. The axial convex seat has the following functions: when the flange plate is in axial butt joint with the fire-fighting pipe flange plate, the axial convex seat is in axial butt joint with the fire-fighting pipe flange plate, and the flange plate and the fire-fighting pipe flange plate can be effectively prevented from being radially displaced and loosened.

In the metal corrugated connecting pipe special for fire fighting, the diameter of the metal corrugated pipe body is larger than that of the connecting pipe body. The range of the diameters of the metal corrugated pipe body is as follows: 30 mm-280 mm, the diameter range of the connecting pipe body is as follows: 20 mm-210 mm.

In the special metal corrugated connecting pipe for fire fighting, the metal corrugated pipe body is corrugated along the length direction of the metal corrugated pipe body so as to adapt to the influence of extrusion or stretching of external force on the axial size of a pipeline of the flange plate connected with the fire fighting pipe, the corrugation of the metal corrugated pipe body comprises wave crest rings and wave trough rings, and the wave crest rings and the wave trough rings are axially distributed in parallel and alternately. The axial deformation range of the axial stretching or axial compression of the wave crest ring and the wave trough ring is large, the wave crest ring and the wave trough ring are distributed in parallel in an axial alternating mode, the axial stretching or axial compression of the wave crest ring and the wave trough ring can be enabled to be even in stress, and the service life is long.

In the special metal corrugated connecting pipe for fire fighting, the corrugated wave crest ring and the corrugated wave trough ring of the metal corrugated pipe body are in C-shaped axial cross sections, and the wave crest ring and the corrugated wave trough ring are reversely arranged and are in tangent distribution. The purpose that sets up like this makes crest ring and trough ring tensile, compression deformation resistance can the reinforce, and during crest ring and trough ring tensile or compression deformation, be difficult for appearing mechanical fatigue, long service life.

In the special metal corrugated connecting pipe for fire fighting, two ends of the metal corrugated pipe body are respectively provided with a radial necking part, and two ends of the metal corrugated pipe body are respectively connected with the two connecting pipe bodies into an integral structure through the radial necking parts. The metal corrugated pipe body, the two radial necking parts and the two connecting pipe bodies are connected into a whole, and the metal corrugated pipe body is high in mechanical strength and strong in compression resistance and tensile resistance.

In the special metal corrugated connecting pipe for fire fighting, the two connecting pipe bodies, the two radial necking parts and the wave crest ring and the wave trough ring in the metal corrugated pipe body are arranged in equal wall thickness. The wall thickness ranges of the two connecting pipe bodies, the two radial necking parts and the wave crest ring and the wave trough ring in the metal corrugated pipe body are 5 mm-5 mm.

Compared with the prior art, this special metal corrugated connecting pipe of fire control's advantage does: the structure design is reasonable and simple, when the axial convex seat is arranged on the fire fighting pipeline, the axial convex seat is tightly connected in an axial direction, and the radial displacement is not easy to occur; the metal corrugated pipe body is arranged to adapt to the axial influence of sinking extrusion or inclined stretching of a building and can bear the external force action of 5 mpa; the junction with the fire control pipeline is difficult for appearing the circumstances such as extrusion dislocation leakage, tensile fracture leakage, avoids fire control incident, and structural stability is high, and long service life is applicable to 360 degrees angle installation uses, and the corrugated metal pipe body can turn round, can twist reverse, can stretch, can compress, the usability is strong.

Drawings

Fig. 1 is a schematic perspective view of the metal corrugated connecting pipe for fire fighting.

Fig. 2 is a schematic sectional structure view of the metal corrugated connecting pipe special for fire fighting.

In the figure, 1, a metal corrugated pipe body; 2. connecting the pipe body; 3. a flange plate; 4. an axial bore; 5. welding flux; 6. an axial boss; 7. a wave crest ring; 8. a trough ring; 9. a radial throat.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and fig. 2, the metal corrugated pipe for fire fighting mainly comprises a metal corrugated pipe body 1, wherein two ends of the metal corrugated pipe body 1 are respectively provided with a connecting pipe body 2 arranged in the same axial direction, the end parts of the two connecting pipe bodies 2 are respectively and axially provided with a flange 3 which is used for being axially and detachably connected with a fire fighting pipe, and a connecting device which enables the flange 3 and the corresponding connecting pipe body 2 to be axially and fixedly connected is arranged between the flange 3 and the corresponding connecting pipe body 2.

In actual manufacturing, the specific implementation of the connecting device is as follows: the inner end face of the flange 3 is provided with an axial assembly groove with the size and the shape matched with those of the connecting pipe body 2, the connecting pipe body 2 is axially and interference-penetratingly arranged in the axial assembly groove, when the connecting pipe body 2 is fixedly connected with the axial assembly groove in an interference mode, the end portion of the connecting pipe body 2 is axially abutted against the bottom of the axial assembly groove, an axial hole 4 axially penetrating through the flange 3 is formed in the middle of the flange 3, and the axial hole 4 penetrates through the bottom of the axial assembly groove and is communicated with the connecting pipe body 2. In actual design, the notch edge of the axial assembly groove is provided with an annular welding position, and when the connecting pipe body 2 is fixedly connected with the axial assembly groove in an interference manner, the welding material 5 is fully welded in the annular welding position. Specifically speaking: the cross section of the solder 5 in the annular welding position is in the shape of an isosceles right triangle, one of right-angle sides of the solder 5 is welded and abutted to the flange plate 3, the bevel edge of the isosceles right triangle of the solder 5 is welded and abutted to the connecting pipe body 2, and the other right-angle side of the solder 5 is supported between the flange plate 3 and the connecting pipe body 2.

In actual manufacturing, the flange 3 has an axial boss 6 at a middle position of the outer end surface thereof, and the axial hole 4 penetrates through the axial boss 6 at a middle position thereof.

In actual manufacturing, the diameter of the corrugated metal pipe body 1 is larger than the diameter of the connecting pipe body 2. The preferred diameter of the corrugated metal pipe 1 is: 200mm, the diameter of the connecting tube body 2 is preferably: 150 mm.

During actual manufacturing, the corrugated metal pipe 1 is corrugated along the length direction of the corrugated metal pipe 1 so as to adapt to the influence of extrusion or stretching of external force on the axial size of the fire-fighting pipe pipeline connected with the flange plate 3, the corrugated metal pipe 1 comprises wave crest rings 7 and wave trough rings 8, and the wave crest rings 7 and the wave trough rings 8 are axially arranged in parallel and alternately; specifically speaking: the corrugated wave crest ring 7 and the wave trough ring 8 of the metal corrugated pipe body 1 are both C-shaped in axial cross section, the wave crest ring 7 and the wave trough ring 8 are reversely arranged and are tangentially distributed; the two ends of the metal corrugated pipe body 1 are respectively provided with a radial necking part 9, and the two ends of the metal corrugated pipe body 1 are respectively connected with the two connecting pipe bodies 2 into an integral structure through the radial necking parts 9.

In order to increase the bearing effect of external force, the two connecting tube bodies 2, the two radial necking parts 9 and the wave crest rings 7 and the wave trough rings 8 in the metal corrugated tube body 1 are arranged with equal wall thickness.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the metal bellows body 1 is used more herein; a connecting pipe body 2; a flange 3; an axial bore 4; a solder 5; an axial boss 6; a wave crest ring 7; a valley ring 8; radial constriction 9, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a special corrugated metal connecting pipe of fire control, includes corrugated metal body (1), the both ends of corrugated metal body (1) have connecting tube body (2) that same axial set up respectively, the tip of two connecting tube bodies (2) is provided with respectively the axial and is used for can dismantling ring flange (3) of being connected with the fire tube axial, its characterized in that, ring flange (3) and corresponding connecting tube body (2) between be provided with the connecting device that makes ring flange (3) and corresponding connecting tube body (2) relative axial link firmly.

2. The special metal corrugated connecting pipe for fire fighting as claimed in claim 1, characterized in that the connecting device comprises an axial assembling groove with a size and a shape matched with those of the connecting pipe body (2) on the inner end surface of the flange (3), the connecting pipe body (2) is axially inserted into the axial assembling groove in an interference manner, when the connecting pipe body (2) is fixedly connected with the axial assembling groove in the interference manner, the end of the connecting pipe body (2) axially abuts against the bottom of the axial assembling groove, an axial hole (4) axially penetrates through the flange (3) is formed in the middle position of the flange (3), and the axial hole (4) penetrates through the bottom of the axial assembling groove and is communicated with the connecting pipe body (2).

3. The metal bellows joint pipe for fire fighting of claim 2, wherein the notch edge of the axial fitting groove has an annular welding position, and when the joint body (2) and the axial fitting groove are secured by interference, the welding position is filled with the welding material (5).

4. The special metal corrugated connecting pipe for fire fighting as defined in claim 3, wherein the cross section of the solder (5) in the annular welding position is an isosceles right triangle, one of the right-angle sides of the solder (5) is welded and abutted against the flange (3), the hypotenuse of the isosceles right triangle of the solder (5) is welded and abutted against the connecting pipe body (2), and the other right-angle side of the solder (5) is supported between the flange (3) and the connecting pipe body (2).

5. A fire-fighting special-purpose metal corrugated connecting pipe as defined in claim 4, characterized in that the flange plate (3) has an axial boss (6) at a central position of the outer end surface thereof, and the axial hole (4) extends through the central position of the axial boss (6).

6. A metal bellows connecting pipe for fire fighting as defined in claim 5, characterized in that the diameter of the metal bellows body (1) is larger than the diameter of the connecting pipe body (2).

7. The metal corrugated connecting pipe special for fire fighting as defined in claim 6, wherein the metal corrugated pipe body (1) is corrugated along the length direction of the metal corrugated pipe body (1) to adapt to the influence of the extrusion or stretching of external force on the axial dimension of the flange (3) connected with the fire fighting pipe, the corrugation of the metal corrugated pipe body (1) comprises wave crest rings (7) and wave trough rings (8), and the wave crest rings (7) and the wave trough rings (8) are axially arranged side by side in an alternating manner.

8. A special metal corrugated connecting pipe for fire fighting as defined in claim 7, characterized in that the corrugated wave crest rings (7) and wave trough rings (8) of the corrugated metal pipe body (1) are all C-shaped in axial cross section, and the wave crest rings (7) and the wave trough rings (8) are arranged in opposite directions and are both tangentially distributed.

9. The metal corrugated connecting pipe special for fire fighting as defined in claim 8, wherein the two ends of the metal corrugated pipe body (1) are provided with radial necking parts (9), and the two ends of the metal corrugated pipe body (1) are connected with the two connecting pipe bodies (2) through the radial necking parts (9) to form an integral structure.

10. A metal bellows connecting pipe for fire fighting as defined in claim 9, wherein the two connecting pipes (2), the two radial throats (9), and the wave crest rings (7) and the wave trough rings (8) in the metal bellows (1) are of uniform wall thickness.