CN212203441U

CN212203441U - Special metal corrugated connecting pipe

Info

Publication number: CN212203441U
Application number: CN202020490187.9U
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: 2020-12-22
Anticipated expiration: 2030-04-07

Abstract

The utility model provides a special metal corrugated connecting pipe belongs to civilian connecting pipe technical field. The leakage-proof device solves the problem that the joint of the existing metal pipe fitting special for the civil house and the pipe fitting is easy to leak. This special metal corrugated connecting pipe, including the body that is the tube-shape, the both ends of body are cup joints tub portion, and the body between two sets of takeover portions is bellows portion, and the crest and the trough of bellows portion are perpendicular with the axial of bellows portion, and crest and trough axial distribute in turn side by side, and the inner diameter that the trough links to each other in the bellows portion is greater than the outer diameter that cup joints tub portion. The utility model has the advantages of reasonable design, simply, the axial is connected closely relatively, and is difficult for radially shifting, does not receive the building to sink the tensile axial influence of extrusion or slope, can bear 5mpa exogenic actions, is difficult for appearing the circumstances such as extrusion dislocation leakage, tensile fracture leakage, and structural stability is high, long service life.

Description

Special metal corrugated connecting pipe

Technical Field

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

Background

The metal pipeline is widely applied to water supply, heating and other systems of high-rise and super high-rise buildings at present. The metal pipeline is generally formed by oppositely connecting pipe fittings and pipe joints. The pipe fitting and the pipe joint can be connected in a plugging mode or in a spiral mode, but in order to prevent explosion and fire caused by indirect contact electric shock and ground fault, equipotential connection is carried out at conductive parts such as metal pipelines of buildings. For example, metal pipeline valves, water meters, joints and the like need to be bridged by equipotential bridging hoops due to conductive isolation.

For example, Chinese patent numbers are: "201120154773.7" the equipotential bridging clamp of building metal pipeline, this clamp is mainly used for bridging connection, and its concrete structure is: the galvanized flat steel is provided with two symmetrical semicircular parts with bent edges at two ends, each bent edge part is provided with a corresponding bolt hole and a fixing bolt which is provided with a spring gasket and penetrates through the bolt hole, the galvanized flat steel at the semicircular part is provided with a screw hole, and a set screw is screwed in the screw hole.

The plug connection, the screw connection and the cross-over connection belong to the traditional connection modes, in the traditional connection structure, when the metal pipelines are butted by the pipe fittings, the connection part of the pipe fittings is easy to radially shift, and the relative connection between the pipe fittings is not tight enough; when long-time use, the building is when being influenced by the building dead weight and subsides or slope, and the relative junction between pipe fitting and the pipe fitting is in when being influenced by the building and subsides extrusion or slope tensile, and plug connection, spiral connection and the cross-over connection between pipe fitting and the pipe fitting extrude the dislocation to leak relatively easily and stretch out the fracture and leak, and the sealed effect of the junction of pipe fitting and pipe fitting can receive the influence, and the easy seepage in junction of pipe fitting appears supplying water incident easily.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a simple structure, with the pipe connection among the metal pipeline closely be difficult for radially shifting, be difficult for receiving the building to sink extrusion or the tensile special corrugated metal connecting pipe that connects the seepage appears in the pipe fitting that makes among the metal pipeline of slope.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a special metal corrugated connecting pipe, is including the body that is the tube-shape, the both ends of body be cup joints tub portion, the body between two sets of takeover portions is bellows portion, its characterized in that, bellows portion's crest and trough and bellows portion's axial vertical, crest and trough axial distribute in turn side by side, bellows portion the inner diameter that the trough links to each other be greater than the outer diameter that cup joints tub portion.

The special metal corrugated connecting pipe can adapt to the influence of the axial size of extrusion or stretching due to external force, the axial deformation range of axial stretching or axial compression of the wave crests and the wave troughs is large, the wave crests and the wave troughs are axially arranged in parallel and alternately distributed, so that the axial deformation stress of the axial stretching or axial compression of the wave crests and the wave troughs is uniform, the service life is long, and the corrugated pipe part can be bent, twisted, stretched and compressible; the tube body is made of red copper material.

In the above-mentioned special corrugated metal connecting pipe, the wave crests and wave troughs in the corrugated pipe portion are both circumferential corrugations. The purpose of setting up like this is to help crest, trough to stress deformation in the axial respectively, and deformability is strong.

In the special metal corrugated connecting pipe, the axial cross sections of the wave crests and the wave troughs in the corrugated pipe part are C-shaped, the wave crests and the wave troughs are reversely arranged, and the end surfaces of the wave crests and the end surfaces of the wave troughs are tangentially distributed. The purpose that sets up like this makes crest and trough tensile, compressive deformation ability reinforce, and during crest and trough tensile or compressive deformation, be difficult for appearing mechanical fatigue, long service life.

In the above-mentioned special metal corrugated connecting pipe, the wave crests and wave troughs in the corrugated pipe part are distributed in the same reverse direction at intervals. The purpose of the arrangement is that the wave crests and wave troughs in the corrugated pipe part have strong plasticity, can be bent, can be twisted, can be compressed and can be stretched.

In the above-mentioned special metal corrugated connecting pipe, the both ends of bellows portion all have radial connecting portion, cup joint tub portion link to each other as an organic whole structure with corresponding radial connecting portion. The purpose that sets up like this is that to make the bell and spigot pipe portion link to each other as an organic whole with corresponding radial connecting portion, and it is better to connect mechanical strength.

In the special metal corrugated connecting pipe, the radial connecting part and the corresponding sleeve pipe part form arc transition. The purpose that sets up like this is that radial connecting portion and the pipe portion that cup joints that corresponds link to each other deformability stronger.

In foretell a special metal corrugated connecting pipe, cup joint pipe portion be straight tube-shape, the middle part position of cup joint pipe portion have and be annular evagination deformation by cup joint pipe portion body and form the snap ring. During assembly, the clamping ring deforms, the clamping connection is fixed, the assembly connection is convenient, and the connection is stable.

In the special metal corrugated connecting pipe, the axial cross section of the clamping ring is in a C shape, and the two ends of the outer wall of the clamping ring and the sleeve pipe part are in arc transition. The purpose of setting up like this makes the continuous deformability of snap ring and bell and spigot joint pipe portion stronger.

In the special metal corrugated connecting pipe, the clamping ring is internally provided with the sealing ring, and the size and the shape of the sealing ring are matched with those of the clamping ring. The purpose that sets up like this makes, during the assembly use, the snap ring deformation extrudees the sealing ring, makes the sealed formation of leaning on of the pipe of pegging graft of sealing ring and assembly sealed, and the leakproofness is good, convenient assembling.

In the above-mentioned special metal corrugated connecting pipe, the wall thickness of the sleeved pipe portion, the radial connecting portion, and the wave crests and wave troughs in the corrugated pipe portion are set to be equal. The wall thickness ranges from 5 mm to 5 mm.

Compared with the prior art, the special metal corrugated connecting pipe has the advantages that: structural design is reasonable, simple, and the axial is connected closely relatively, and is difficult for radially shifting, does not receive the building to sink the tensile axial influence of extrusion or slope, can bear 5mpa exogenic actions, is difficult for appearing the extrusion dislocation and leaks, the condition such as tensile fracture leakage, and structural stability is high, and long service life is applicable to 360 degrees angular installation and uses, and this bellows portion can turn round, can twist, can stretch, can compress.

Drawings

Fig. 1 is a schematic perspective view of the special metal corrugated connecting pipe.

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

FIG. 3 is a schematic view of a partially sectional structure of the dedicated corrugated metal connecting pipe in an operating state.

In the figure, 1, a sleeve pipe part; 2. a bellows portion; 3. wave crest; 4. a trough of a wave; 5. a radial connecting portion; 6. a snap ring; 7. and (4) a sealing ring.

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, 2 and 3, the special metal corrugated connecting pipe mainly comprises a cylindrical pipe body, wherein two ends of the pipe body are both provided with a sleeve pipe part 1, the pipe body between the two sleeve pipe parts 1 is a corrugated pipe part 2, wave crests 3 and wave troughs 4 of the corrugated pipe part 2 are vertical to the axial direction of the corrugated pipe part 2, the wave crests 3 and the wave troughs 4 are axially distributed in parallel and alternately, and the inner diameter of the connected wave troughs 4 in the corrugated pipe part 2 is larger than the outer diameter of the sleeve pipe part 1; the wave crests 3 and the wave troughs 4 in the corrugated pipe part 2 are all annular corrugations; the axial cross sections of the wave crest 3 and the wave trough 4 in the corrugated pipe part 2 are C-shaped, the wave crest 3 and the wave trough 4 are arranged in opposite directions, and the end surfaces of the wave crest 3 and the wave trough 4 are distributed in a tangent mode; the wave crests 3 and wave troughs 4 in the bellows portion 2 are arranged in the same reverse direction.

In actual manufacturing, the two ends of the bellows part 2 are provided with radial connecting parts 5, and the sleeve pipe part 1 and the corresponding radial connecting parts 5 are connected into an integral structure; the radial connecting part 5 and the corresponding sleeve pipe part 1 are in arc transition.

In the actual design, the sleeving pipe part 1 is in a straight cylinder shape, and a snap ring 6 formed by annularly and outwards deforming the body of the sleeving pipe part 1 is arranged in the middle of the sleeving pipe part 1; the axial cross section of the snap ring 6 is C-shaped, and two ends of the outer wall of the snap ring 6 are in arc transition with the sleeve pipe part 1; a sealing ring 7 is arranged in the snap ring 6, and the size and the shape of the sealing ring 7 are matched with those of the snap ring 6.

In practical use, the wall thickness of the crest 3 and the trough 4 in the bell pipe portion 1, the snap ring 6, the radial connecting portion 5, and the bellows portion 2 is set to be uniform.

When actual assembly used, the both ends of this body are and cup joint tub portion 1, and the body between two sets of takeover portions 1 is bellows portion 2, cup joints tub portion 1 extensible and be the fluorescent tube, but bellows portion 2 sets up many places along the length direction interval of body, and bellows portion 2 can turn round, can twist reverse, can draw, can compress, easy to assemble, when being connected with the pipe fitting, cup joint and can establish the internal thread on tub portion 1 for threaded connection can be used to the welding and links firmly.

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 bell pipe portion 1 is used herein more; a bellows portion 2; a peak 3; a wave trough 4; a radial connecting portion 5; a snap ring 6; sealing rings 7, 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 metal corrugated connecting pipe, is including the body that is the tube-shape, the both ends of body be and cup joint tub portion (1), two cup joint the body between tub portion (1) and be bellows portion (2), its characterized in that, the axial verticality of crest (3) and trough (4) and bellows portion (2) of bellows portion (2), crest (3) and trough (4) axial distribute in turn side by side, bellows portion (2) in the inner diameter that trough (4) link to each other be greater than the outer diameter of cup jointing tub portion (1).

2. A special metal corrugated connecting pipe according to claim 1, wherein the wave crests (3) and wave troughs (4) in the corrugated pipe portion (2) are both hoop corrugations.

3. The special metal corrugated connecting pipe according to claim 2, wherein the axial cross sections of the wave crests (3) and the wave troughs (4) in the corrugated pipe portion (2) are both C-shaped, the wave crests (3) and the wave troughs (4) are arranged in opposite directions, and the end faces of the wave crests (3) and the end faces of the wave troughs (4) of the two are distributed tangentially.

4. A special metal corrugated connecting pipe according to claim 3, characterized in that the wave crests (3) and wave troughs (4) in the corrugated pipe portion (2) are distributed in the same direction and at the same interval.

5. The special metal corrugated connecting pipe according to claim 4, wherein the corrugated pipe portion (2) has radial connecting portions (5) at both ends, and the sleeve pipe portion (1) and the corresponding radial connecting portions (5) are connected into a whole structure.

6. A special corrugated metal connecting pipe according to claim 5, characterized in that the radial connecting part (5) and the corresponding socket pipe part (1) form an arc transition.

7. The special metal corrugated connecting pipe as claimed in claim 6, wherein the sleeving pipe part (1) is in a straight cylinder shape, and the middle position of the sleeving pipe part (1) is provided with a snap ring (6) formed by annularly and convexly deforming the body of the sleeving pipe part (1).

8. The special metal corrugated connecting pipe according to claim 7, wherein the axial cross section of the snap ring (6) is in a C-shaped shape, and the two ends of the outer wall of the snap ring (6) are in arc transition with the sleeving pipe part (1).

9. The special metal corrugated connecting pipe according to claim 8, wherein a sealing ring (7) is arranged in the snap ring (6), and the size and the shape of the sealing ring (7) are matched with those of the snap ring (6).

10. The special metal corrugated connecting pipe according to claim 9, characterized in that the wall thickness of the sleeved pipe portion (1), the snap ring (6), the radial connecting portion (5), and the wave crests (3) and the wave troughs (4) in the corrugated pipe portion (2) are equal.