CN219388992U - Ring clamp sealing type corrugated compensation connection metal pipe fitting - Google Patents

Abstract

The utility model relates to a ring clamping sealing type corrugated compensation connecting metal pipe fitting which comprises a corrugated pipe and a pipe joint arranged at the end part of the corrugated pipe, wherein the pipe joint comprises a spigot and socket pipe, an inner sleeve arranged at one end of the spigot and socket pipe, a filling sealing pipe arranged at the other end of the spigot and socket pipe and a sealing convex ring arranged on the spigot and socket pipe, a sealing sleeve is arranged in the filling sealing pipe, a sealing ring is arranged in the sealing convex ring, an outer sleeve is arranged at the end part of the corrugated pipe, the inner sleeve is sleeved in the outer sleeve, a first slope is arranged at the joint part of the inner sleeve and the spigot and socket pipe, a second slope is arranged at one end of the outer sleeve facing the pipe joint, and the first slope and the second slope form a welding filling groove. The corrugated pipe and the pipe joint with split structures are adopted, so that the corrugated pipe and the pipe joint are convenient to mold and process; the corrugated pipe and the pipe joint are sleeved through the inner sleeve and the outer sleeve and are welded in the welding filling groove, so that the connection strength of the corrugated pipe and the pipe joint is improved.

Description

Ring clamp sealing type corrugated compensation connection metal pipe fitting

Technical Field

The utility model relates to the technical field of pipe fittings, in particular to a ring clamping sealing type corrugated compensation connecting metal pipe fitting.

Background

In the pipeline system, or the phenomena of thermal expansion and cold contraction caused by the installation environment and the temperature in the season exist, the pipeline can be damaged and destroyed to a certain extent. Therefore, heavy and complex expansion joints and expansion joints are generally adopted to absorb dimensional changes of pipelines, conduits, containers and the like caused by expansion with heat and contraction with cold or compensate axial, transverse and angular displacement of the pipelines, conduits, containers and the like. In modern industry, the use is wide, especially in heating, in order to prevent deformation or damage of the pipeline caused by thermal elongation or temperature stress when the heating pipeline is heated, a compensator needs to be arranged on the pipeline to compensate the thermal elongation of the pipeline, so that the stress of the pipeline wall and the acting force acting on the valve element or the support structure are reduced.

The Chinese patent with publication number of CN215928797U discloses a ring clamp sealing type corrugated compensation connecting metal pipe fitting, by arranging a compensation corrugated pipe, the pipe connection has a certain expansion compensation property under expansion with heat and contraction with cold or external force expansion, the problem that the existing pipe is directly connected and is easy to break under the external force is avoided, but a left connecting port, a right connecting port and the compensation corrugated pipe are manufactured by pipe extrusion integrated molding, and the molding process requirement is higher.

Disclosure of Invention

The utility model aims to provide a ring clamping sealing type corrugated compensation connecting metal pipe fitting, which improves the connection strength of a corrugated pipe and a pipe joint.

The above object of the present utility model is achieved by the following technical solutions: the utility model provides a ring clamp sealed ripple compensation connection metal pipe fitting, includes the bellows and sets up the coupling at the bellows tip, the coupling includes spigot and socket pipe, sets up the interior sleeve pipe in spigot and socket pipe one end, sets up the sealed pipe of packing of spigot and socket pipe other end and sets up the sealed bulge loop on the spigot and socket pipe, be provided with the seal cover in the sealed pipe, the sealed bulge loop sets up by the sealing washer, the tip of bellows is provided with the outer tube, interior sleeve pipe suit is in the outer tube, the junction of interior sleeve pipe and spigot and socket pipe is provided with first slope, the one end of outer tube orientation coupling is provided with the second slope, first slope and second slope form the welding filling groove.

Preferably, a first limiting step is arranged in the outer sleeve, and the end part of the inner sleeve abuts against the first limiting step.

Preferably, the inner wall of the inner sleeve is provided with a conical surface, the inner diameter of the conical surface gradually increases from the inner end of the inner sleeve to the outer end, and the inner diameter of the outer end of the conical surface is equal to the inner diameter of the outer sleeve.

Preferably, the inner diameter of the inner sleeve is smaller than the inner diameter of the socket pipe, and the inner diameter of the socket pipe is smaller than the inner diameter of the filling sealing pipe.

Preferably, an annular receiving groove is arranged on the inner wall of the filling sealing tube.

The utility model has the beneficial effects that:

the corrugated pipe and the pipe joint with split structures are adopted, so that the corrugated pipe and the pipe joint are convenient to mold and process;

the corrugated pipe and the pipe joint are sleeved through the inner sleeve and the outer sleeve and are welded in the welding filling groove, so that the connection strength of the corrugated pipe and the pipe joint is improved.

Drawings

FIG. 1 is a schematic view showing the structure of a pipe fitting in embodiment 1 of the present utility model;

FIG. 2 is a cross-sectional view of a pipe member according to embodiment 1 of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a schematic structural view of a pipe joint in embodiment 2 of the present utility model;

in the figure: the sealing device comprises a corrugated pipe 1, an outer sleeve 101, a second slope 102, a limit step 103, a 2-pipe joint 201, a socket pipe 202, an inner sleeve 203, a filling sealing pipe 204, a sealing convex ring 205, a first slope 206, a conical surface 207, a containing groove 208, a connecting plate 209, a connecting hole 3-sealing rings and a 4-sealing sleeve.

Description of the embodiments

The present utility model will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model, may be made by those skilled in the art after reading the present specification, are only protected by patent laws within the scope of the claims of the present utility model.

Examples

As shown in fig. 1, 2 and 3, a ring clip sealing type corrugated compensation connection metal pipe fitting comprises a corrugated pipe 1 and pipe joints 2 arranged at the end part of the corrugated pipe 1, wherein the number of the pipe joints 2 is two, and the pipe joints 2 are distributed at two ends of the corrugated pipe 1.

The pipe joint 2 comprises a socket pipe 201, an inner sleeve 202 arranged at one end of the socket pipe 201, a filling sealing pipe 203 arranged at the other end of the socket pipe 201 and a sealing convex ring 204 arranged on the socket pipe 201.

The inner diameter of the inner sleeve 202 is smaller than the inner diameter of the socket pipe 201, and the inner diameter of the socket pipe 201 is smaller than the inner diameter of the filling seal pipe 203.

The end of the corrugated pipe 1 is provided with an outer sleeve 101, and an inner sleeve 202 is sleeved in the outer sleeve 101. The joint of the inner sleeve 202 and the socket pipe 201 is provided with a first slope 205, one end of the outer sleeve 101 facing the pipe joint 2 is provided with a second slope 102, and the first slope 205 and the second slope 102 form a welding filling groove. After the outer sleeve 101 is sleeved with the inner sleeve 202, the corrugated pipe 1 and the pipe joint 2 are welded into a whole by welding in a welding filling groove.

A limiting step 103 is arranged in the outer sleeve 101, and the end part of the inner sleeve 202 abuts against the limiting step 103.

The inner wall of the inner sleeve 202 is provided with a conical surface 206, the inner diameter of the conical surface 206 gradually increases from the inner end of the inner sleeve 202 to the outer end, and the inner diameter of the outer end of the conical surface 206 is equal to the inner diameter of the outer sleeve 101. When the liquid flows through the connection part of the outer sleeve 101 and the inner sleeve 202, the liquid can smoothly flow, and the end surface of the inner sleeve 202 is prevented from protruding out of the inner wall of the outer sleeve 101 to influence the flow of the liquid.

A sealing sleeve 4 is arranged in the filling sealing tube 203, and a sealing ring 3 is arranged in the sealing convex ring 204.

During installation, the butted pipeline is inserted into the spigot and socket pipe 201 from the filling seal pipe 203, so that the sealing ring 3 and the sealing sleeve 4 are sleeved on the outer side of the butted pipeline, and then the clamping tool is used for pressing the filling seal pipe 203 of the pipe fitting, so that the filling seal pipe 203 is contracted, and the sealing ring and the sealing sleeve are connected into a whole.

Wherein, be provided with annular holding tank 207 on the inner wall of filling seal tube 203, holding tank 207 is located filling seal tube 203 laminating on the inner wall of seal cover 4. When the filling and sealing tube 203 is shrunk and deformed by the clamping tool, the deformation of the filling and sealing tube 203 and the sealing sleeve 4 can be buffered by the accommodating groove 207.

Examples

As shown in fig. 4, the difference from embodiment 1 is that a connection plate 208 is provided on the outer wall of the socket pipe 201, the connection plate 208 is uniformly distributed circumferentially, a connection hole 209 for threading a bolt is provided on the connection plate 208, and the connection hole 209 is a long hole extending in the radial direction.

At the time of installation, the butted pipe is inserted into the socket pipe 201 from the filling seal pipe 203 while bolts and nuts are connected to the connection plate 208 and the flanges of the butted pipe so that the butted pipe is tightly connected to the pipe joint 2, and then the filling seal pipe 203 of the pipe is subjected to a pressing operation by a clamping tool. Wherein, a notch is arranged at the connection part of the connecting plate 208 and the spigot and socket pipe 201, which is convenient for bending or breaking the connecting plate 208 after the installation is completed.

Claims (6)

1. The utility model provides a ring card sealed ripple compensation connects metal pipe fitting, includes bellows (1) and sets up coupling (2) at bellows (1) tip, a serial communication port, coupling (2) are including socket pipe (201), set up interior sleeve pipe (202) in socket pipe (201) one end, set up packing seal pipe (203) and the sealed bulge loop (204) of setting on socket pipe (201) the other end of socket pipe (201), be provided with seal cover (4) in packing seal pipe (203), set up by sealing washer (3) in sealed bulge loop (204), the tip of bellows (1) is provided with outer tube (101), interior sleeve pipe (202) suit is in outer tube (101), interior sleeve pipe (202) are provided with first slope (205) with the junction of socket pipe (201), the one end of outer tube (101) towards coupling (2) is provided with second slope (102), first slope (205) and second slope (102) form the welding filling groove.

2. The annular clip sealed corrugated compensating connection metal pipe fitting of claim 1, wherein: a limiting step (103) is arranged in the outer sleeve (101), and the end part of the inner sleeve (202) is propped against the limiting step (103).

3. The annular clip sealed corrugated compensating connection metal pipe fitting of claim 2, wherein: the inner wall of the inner sleeve (202) is provided with a conical surface (206), the inner diameter of the conical surface (206) gradually increases from the inner end of the inner sleeve (202) to the outer end, and the inner diameter of the outer end of the conical surface (206) is equal to the inner diameter of the outer sleeve (101).

4. The annular clip sealed corrugated compensating connection metal pipe fitting of claim 1, wherein: the inner diameter of the inner sleeve (202) is smaller than the inner diameter of the spigot and socket pipe (201), and the inner diameter of the spigot and socket pipe (201) is smaller than the inner diameter of the filling sealing pipe (203).

5. The annular clip sealed corrugated compensating connection metal pipe fitting of claim 1, wherein: an annular accommodating groove (207) is formed in the inner wall of the filling seal tube (203).

6. The annular clip sealed corrugated compensating connection metal pipe fitting of claim 1, wherein: the socket pipe is characterized in that connecting plates (208) are arranged on the outer wall of the socket pipe (201), the connecting plates (208) are uniformly distributed in circumference, connecting holes (209) used for penetrating bolts are formed in the connecting plates (208), and the connecting holes (209) are long holes extending along the radial direction.