CN210372530U

CN210372530U - Half joint

Info

Publication number: CN210372530U
Application number: CN201921189056.0U
Authority: CN
Inventors: 焦祥静
Original assignee: ANHUI TONGFA EQUIPMENT CO LTD
Current assignee: ANHUI TONGFA EQUIPMENT CO LTD
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-04-21
Anticipated expiration: 2029-07-25

Abstract

The utility model provides a ha fujie, enclose to close including two ha fujie halfbodies and constitute ha fujie formula tube coupling, the straight recess that axial side and tip circumference of hafujie halfbody were arranged, arc recess are used for inlaying the sealing member halfbody, and the side of tip circumference arc recess is provided with the lug, and the lug is arranged along circumference. The sealing element half bodies are embedded in straight grooves and arc grooves which are circumferentially arranged on the side edges of the half bodies in the tube length direction and the end parts of the half bodies, after the two half bodies are connected and enclosed by bolts, the straight sections on the side edges of the sealing element half bodies are mutually attached, so that the relative position of the sealing element and a pipe fitting to be repaired is ensured to be determined, no relative displacement or relative displacement trend exists, the sealing element is deformed only under the action of positive pressure, the sealing performance is ensured, and the service life of the sealing element is naturally and remarkably prolonged.

Description

Half joint

Technical Field

The utility model relates to a half formula quick-operation joint that pipeline was used.

Background

The town water supply and drainage pipe network system usually adopts cement, cast iron or galvanized steel pipe, because geological conditions changes or body self defect, the pipeline rupture accident happens occasionally, for in time recovering the pipeline unobstructed, often adopt the quick connector of half a pipe-shaped section among the prior art to connect, adopt two half tubular half formula quick connectors when salvageing promptly, contain the damaged portion C of pipeline A, B in the pipe cavity is enclosed into to half a pipe-shaped section, utilize the bolt to tighten up the semicircle composition surface of half a pipe-shaped section 1, rubber seal 2 folds and seals damaged portion C. The method is widely used for rush-repair of pipelines due to the fact that the number of rush-repair workers is small, installation time is short, speed is high, and the method is simple and easy to use, and the method does not need to excavate earthwork in a large range and replace a new pipe to become a common spare part of a piping system enclosure part and a unit.

For pipes made of cement, cast iron or galvanized steel pipes and the like, the sealing is realized by depending on the framework type sealing rings embedded on the half-bodies of the. Due to the change of geological environment and the action of pressure in the pipe, the pipe body and the Haff joint can be displaced along the length direction of the pipe under the condition that the Haff joint body is intact, the end arc section of the sealing ring can be scratched by a small amount of displacement due to the fact that the outer surface of the pipe body is quite rough, and sealing failure can be caused even if the scratched part is small.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a ha fujie ensures ha fujie and waits to restore between the body along the spacing fixed of pipe length direction, improves the life of sealing washer.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the half joint comprises two half joint bodies which are enclosed to form a half pipe joint, the axial side edges of the half joint bodies, straight grooves and arc grooves are circumferentially arranged at the end parts of the half joint bodies and are used for embedding sealing part half bodies, and convex blocks are arranged at the sides of the circumferential arc grooves at the end parts of the half joint bodies and are circumferentially arranged.

According to the technology, the sealing half bodies are embedded in the straight grooves and the arc grooves which are circumferentially arranged on the side edges of the half bodies of the half-bodies, the straight sections at the side edges of the sealing element half bodies are mutually attached, the circumferential arc section of the end part of the sealing element is extruded and attached with the outer pipe wall of the pipe fitting to be repaired to realize sealing, at the moment, the convex block is just attached to the outer pipe wall of the pipe fitting to be repaired, the axial force between the pipeline and the Haff joint caused by the change of the external environment is born by the constraint contact between the convex block arranged on the Haff joint body and the pipeline, therefore, the relative position of the sealing element and the pipe fitting to be repaired is ensured to be determined, no relative displacement or relative displacement trend exists, the sealing element is deformed under the action of positive pressure to ensure the realization of sealing performance, and the service life of the sealing element is naturally and obviously prolonged.

Drawings

FIGS. 1 and 2 are schematic structural views of the prior art, wherein FIG. 2 is a sectional view taken along line k-k in FIG. 1;

fig. 3 and 4 are schematic perspective views of the present invention;

FIG. 5 is a schematic view of the three-dimensional structure of the present invention with the sealing member embedded therein;

fig. 6 and 7 are schematic structural views of the use state of the present invention, and fig. 7 is a cross-sectional view taken along line K-K in fig. 6.

Detailed Description

As shown in fig. 3, 4, 5, 6 and 7, the half-section includes two half-sections 10 enclosing to form a half-section, and since the half-section is used by two half-sections paired, the following description focuses on the shape of the single half-section for simplicity. Straight grooves 11 and arc-shaped grooves 12 which are circumferentially arranged on the axial side edge and the end part of the half 10 are used for embedding sealing element half halves 30 or 40, lugs 13 are arranged on the sides of the circumferential arc-shaped grooves 12 on the end part, and the lugs 13 are circumferentially arranged. In order to ensure that the seal 30 deforms sufficiently to ensure sealing during use, the height at which the projection 13 is located, or the distance that the projection projects in the direction of the tube core, should be considered such that when the amount of deformation of the seal 30 is such that sealing is effected, the crests of the projection 13 will bear positively against the walls of the tube A, B to be repaired and will provide sufficient friction to take up the axial displacement.

The bump 13 has the following two preferable arrangement schemes, one of which is: the projection of the convex block 13 on the section vertical to the length direction of the pipe is corrugated and is arranged on the side groove edge of the arc-shaped groove 12 at the end part of the half joint; secondly, the projection of the convex block 13 on the section perpendicular to the length direction of the pipe is trapezoidal, the big bottom end of the convex block is arranged on the side groove edge of the arc-shaped groove 12 at the end part of the Ha-Fu joint, and the convex blocks 13 are uniformly arranged at intervals in the circumferential direction.

In both of the above solutions, the effect is the same, with only a slight difference in the shape of the particular elements constituting the projections, i.e. the top areas of the projections 13 are pressed against the wall of the pipe to be repaired.

Preferably, the protrusion 13 is disposed on an outer side groove edge of the arc groove 12.

Of course, the protrusion 13 may also be disposed on the inner side groove edge of the arc groove 12, or both the inner and outer groove edges may be disposed, and when the protrusion 13 is disposed on both the inner and outer groove edges, the deformation of the sealing ring at the arc groove 12 may be distributed more uniformly in the axial direction.

In order to provide a reliable frictional force without excessive pressure of the projection 13 against the wall of the pipe, the top region of the projection 13 is roughened.

When the sealing ring at the section of the arc-shaped groove 12 works, the internal and external pressure difference is large, the outward convex deformation of the sealing ring is easy to occur, the end surface of the inner side of the convex block 13 is flush with the groove wall of the outer side of the arc-shaped groove 12, and the end surface of the inner side of the convex block 13 is abutted against the end surface of the outer side of the sealing element, so that the condition of the axial outward convex deformation of the sealing element can be eliminated.

The arrangement of the convex block 13 can improve the friction force to prevent the axial and circumferential displacement between the sealing element and the outer wall of the pipeline 1, and the additional advantage is that the problem of deformation transition of the sealing element 30 when the bolt and the nut are screwed up and connected is objectively limited, and an operator has obvious force feeling when the bolt and the nut are matched and connected to enable the Hafu joint to progressively enclose, namely the force feeling is very obvious when the convex block 13 is in contact with the pipe body A, B, which is very important for the environmental conditions that the connection state of components cannot be seen at all due to muddy water mixing when a pipeline system buried underground is repaired, so that the phenomenon of deformation caused by transition pressure of the sealing element is protected, and the deformation caused by the phenomenon is also reliable sealing deformation.

Claims

1. The utility model provides a half a husband's festival, two half a husband's festival (10) enclose to close and constitute half a husband's formula tube coupling, and the straight recess, the arc recess (11, 12) that axial side and the tip circumference of half a husband's festival (10) were arranged are used for imbedding the sealing member halfbody, its characterized in that: the side of the end part arc-shaped groove (12) is provided with a lug (13), and the lug (13) is arranged along the circumferential direction.

2. The huff-section of claim 1, wherein: the projection of the convex block (13) on the section vertical to the length direction of the pipe is corrugated and is arranged on the side groove edge of the arc-shaped groove (12) at the end part of the half joint.

3. The huff-section of claim 1, wherein: the projection of the convex block (13) on the section perpendicular to the length direction of the pipe is trapezoidal, the big bottom end of the convex block is arranged on the side groove edge of the arc-shaped groove (12) at the end part of the half joint, and the convex blocks (13) are uniformly arranged at intervals in the circumferential direction.

4. The huff-section according to claim 2 or 3, wherein: the top area of the bump (13) is a rough surface.

5. The huff-section according to claim 2 or 3, wherein: the convex block (13) is arranged on the outer side groove edge of the arc-shaped groove (12).

6. The huff-section of claim 5, wherein: the end surface of the inner side of the convex block (13) is flush with the groove wall of the outer side of the arc-shaped groove (12).