CN218582423U

CN218582423U - Novel easy-to-install nodular pipe fitting

Info

Publication number: CN218582423U
Application number: CN202222934120.1U
Authority: CN
Inventors: 盛春英; 吴黄俊; 吴鹏; 吴云
Original assignee: TONGLING XINTE VALVE CO Ltd
Current assignee: TONGLING XINTE VALVE CO Ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-03-07
Anticipated expiration: 2032-11-04

Abstract

The utility model discloses a novel easy to assemble's nodular pipe fitting relates to the nodular pipe fitting field, including three way type nodular pipe fittings, three ring flanges of three way type nodular pipe fittings all pass through bolt and nut and other pipe fitting fixed connection, three groups the ring flange is kept away from one of installation end and is served and be the fixed welding of circumference and have a plurality of hollow stopper, just hollow stopper with the mounting hole on the ring flange should set up, and both set up with the axle center, seted up on the hollow stopper with the hexagonal chamber of the hexagon head looks adaptation of bolt still including be used for with the hexagon head of bolt is fixed spacing the spacing unit in the hexagonal chamber. The hollow limiting block and the limiting unit are arranged, so that bolts inserted on the flange in an inserting mode can be prevented from rotating and moving during installation, installation of the pipe fitting and other pipe fittings is facilitated, the limiting unit can be an elastic limiting strip or an annular permanent magnet, and selection can be performed according to specific conditions.

Description

Novel easy-to-assemble's nodular pipe fitting

Technical Field

The utility model relates to a nodular pipe fitting technical field, in particular to novel easy to assemble's nodular pipe fitting.

Background

The nodular cast iron pipe is a pipe fitting which is made by adding magnesium or rare earth magnesium combined with a nodulizer into molten iron before casting to nodulate graphite and reduce stress concentration, so that the pipe fitting has the advantages of high strength, high elongation rate, impact resistance, corrosion resistance, good sealing performance and the like, and the pipe fitting has larger elongation rate, so that the flexibility of the pipeline is better, the pipe fitting can work together with soil around the pipeline in a buried pipeline, the stress state of the pipeline is improved, the running reliability of a pipe network is improved, and the nodular cast iron pipe is one of main pipe fittings in the current water supply industry of China and is widely applied.

When current three way type nodular pipe fitting carries out bolt, nut installation with other pipe fittings and is fixed, need utilize two spanners, a spanner keeps fixed with the hexagon head adaptation of bolt, and another spanner and nut adaptation drive the nut and carry out the fastening between the pipe fitting at the bolt rotation fixed for the installation is more troublesome, consequently, this application provides a novel easy to assemble's nodular pipe fitting and satisfies the demand.

SUMMERY OF THE UTILITY MODEL

An object of this application provides a novel easy to assemble's nodular pipe fitting sets up hollow stopper and spacing unit, can guarantee when the installation bolt of pegging graft on the flange does not take place to rotate and remove, is favorable to the installation of this pipe fitting and other pipe fittings, and its spacing unit can be the spacing strip of elasticity, also can be annular permanent magnet, can select according to particular case.

In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides a novel easy to assemble's nodular pipe fitting, includes three way type nodular pipe fittings, three ring flanges of three way type nodular pipe fittings all through bolt and nut and other pipe fitting fixed connection, three groups the ring flange is kept away from one of installation end and is served and be the fixed welding of circumference and have a plurality of hollow stopper, just hollow stopper with mounting hole on the ring flange corresponds the setting, and both set up with the axle center, set up on the hollow stopper with the hexagonal chamber of the hexagonal head looks adaptation of bolt still including be used for with the hexagonal head of bolt is fixed spacing the spacing unit in the hexagonal chamber.

Preferably, the limiting unit comprises an elastic limiting strip, the elastic limiting strip is provided with a plurality of parts, the elastic limiting strip is fixedly installed in a groove formed in the inner wall of the hexagonal cavity, and the elastic limiting strip is arranged in an arc shape with the end face contacted with the hexagonal head.

Preferably, the outer surface of the elastic limiting strip is provided with a ZS-inorganic anti-corrosion coating.

Preferably, the limiting unit comprises a hexagonal plate with a through hole, the hexagonal plate is fixedly arranged in the hexagonal cavity, an annular groove is formed in the axis of the hexagonal plate, an annular permanent magnet is fixedly arranged on the annular groove, and the through hole is formed in the annular groove and the inner diameter of the annular permanent magnet is the same as the diameter of the mounting hole.

Preferably, the nut and with the nut is corresponding all be provided with the phosphor strip on the outer wall of ring flange, work as after the ring flange all fastens with other pipe fittings through bolt and nut, phosphor strip on the nut and the corresponding setting phosphor strip on the ring flange are on same straight line.

Preferably, one end of the nut is open, the other end of the nut is sealed, and a threaded cavity is formed in the nut.

To sum up, the utility model discloses a technological effect and advantage:

1. the utility model has reasonable structure, the arrangement of the hollow limiting block and the limiting unit can ensure that the bolt inserted on the flange does not rotate and move when being installed, which is beneficial to the installation of the pipe fitting and other pipe fittings, and the limiting unit can be an elastic limiting strip or an annular permanent magnet and can be selected according to specific conditions;

2. in the utility model, the elastic limiting strip is made of metal rubber material, has the inherent characteristics of the selected metal, has the elasticity similar to rubber, does not fear the high temperature of 800 degrees and the low temperature of minus 167 degrees, has good wear resistance, corrosion resistance and aging resistance, and has the service life greatly superior to that of common rubber material;

3. the utility model discloses in, all be provided with the phosphor strip on the outer wall of nut and the ring flange corresponding with the nut, whether the accessible is observed phosphor strip on the nut and is judged the nut on same straight line with the phosphor strip that corresponds the setting on the flange and whether takes place not hard up, and the phosphor strip can send the light at night, is favorable to the not hard up of night inspection nut.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is a schematic view of the installation structure of the elastic spacing strip in FIG. 2;

FIG. 4 is an enlarged view of the structure at B in FIG. 3;

FIG. 5 is a schematic perspective view of a second embodiment;

fig. 6 is a schematic view of the installation structure of the ring-shaped permanent magnet in fig. 5.

In the figure: 1. a three-way type nodular graphite pipe fitting; 2. a flange plate; 3. a hollow limiting block; 4. a bolt; 5. a nut; 6. an annular permanent magnet; 7. a fluorescent strip; 8. an elastic limit strip; 9. a hexagonal plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The first embodiment is as follows: referring to fig. 1, a novel easily-installed spherical graphite pipe fitting comprises a three-way spherical graphite pipe fitting 1, three groups of flanges 2 of the three-way spherical graphite pipe fitting 1 are fixedly connected with other pipe fittings through bolts 4 and nuts 5, a plurality of hollow stoppers 3 are fixedly welded on one ends of the three groups of flanges 2 far away from a mounting end in a circumferential manner, mounting holes in the hollow stoppers 3 and the flanges 2 are correspondingly arranged, the two are coaxially arranged, hexagonal cavities matched with hexagonal heads of bolts 4 are formed in the hollow stoppers 3, and a limiting unit for fixing and limiting the hexagonal heads of the bolts 4 in the hexagonal cavities is further included, when the other pipe fittings are mounted, one end of each bolt 4 can be inserted into the hexagonal cavity, and the hexagonal heads can move into the hexagonal cavities, make bolt 4 can not take place the rotation through the cooperation of hexagonal chamber and hexagonal head, it is spacing to rotate bolt 4, recycle this moment a spanner and nut 5 cooperation make its nut 5 rotate on screw rod 4 screw up can, the operation is simplified, make the installation operation more convenient, when needs are with the vertical installation of this pipe fitting, then need insert the hexagonal intracavity with bolt 4 from upwards from following sometimes, insert and finish and loosen after the hand, because of the action of gravity, bolt 4 can be because of self action of gravity downstream, the event sets up spacing unit, can be spacing at the hexagonal intracavity with hexagonal head after inserting, make the bolt can't fall through self gravity, make things convenient for follow-up threaded connection with the nut, further improve the convenience of installation.

As a preferred implementation manner in this embodiment, as shown in fig. 3 and fig. 4, the limiting unit includes an elastic limiting strip 8, the elastic limiting strip 8 is provided with a plurality of elastic limiting strips 8, the elastic limiting strip 8 is fixedly installed in a groove provided on the inner wall of the hexagonal cavity, the end face of the elastic limiting strip 8 contacting with the hexagonal head is in an arc shape, when the bolt is inserted into the hollow limiting block, the hexagonal head will contact with the arc face of the elastic limiting strip 8 and form extrusion, the bolt continues to perform insertion movement, the hexagonal head moves completely into the hexagonal cavity, at this time, the elastic limiting strip 8 returns to the original position by virtue of the elastic action and forms blocking to the hexagonal head, the movement of the hexagonal head out of the hexagonal cavity can be prevented, when disassembling, only the end face of the bolt 4 needs to be abutted by hand and made to the end of the bolt and made to move downward, at this time, the hexagonal head will contact with the arc face of the elastic limiting strip 8 and form extrusion to the elastic limiting strip 8, finally, the hexagonal head can move out of the hexagonal cavity, which facilitates the disassembling of the bolt and the flange, the end face of the elastic limiting strip 8 is provided with an arc shape, which mainly plays a guiding role and is beneficial to facilitate the movement of the hexagonal cavity.

It should be noted that the elastic limit strip 8 is made of metal rubber material, has the inherent characteristics of the selected metal, has the elasticity similar to rubber, does not fear the high temperature of 800 degrees and the low temperature of minus 167 degrees below zero, has good wear resistance, corrosion resistance and aging resistance, and has the service life greatly superior to that of common rubber material.

In this embodiment, not shown in the drawings, the outer surface of the elastic stopper bar 8 is provided with a ZS-711 inorganic corrosion-resistant coating having good corrosion resistance, which further improves the corrosion resistance of the elastic stopper bar 8.

As a preferred embodiment in this embodiment, as shown in fig. 1 and fig. 2, the nut 5 and the outer wall of the flange 2 corresponding to the nut 5 are both provided with a fluorescent strip 7, after the flange 2 is fastened to other pipes by the bolt 4 and the nut 5, the fluorescent strip 7 on the nut 5 and the fluorescent strip 7 on the flange 2 correspondingly arranged are on the same straight line, and whether the nut 5 is loosened can be judged by observing whether the fluorescent strip 7 on the nut 5 and the fluorescent strip 7 correspondingly arranged on the flange 5 are on the same straight line, and the fluorescent strip 7 can emit light at night, which is beneficial to checking the looseness of the nut 5 at night.

As a preferred implementation manner in this embodiment, as shown in fig. 1, one end of the nut 5 is open, the other end is sealed, and a threaded cavity is provided inside the nut, so that when the nut is installed, the body portion of the bolt 4 can be wrapped, thereby preventing the bolt from contacting with the outside and causing oxidation corrosion, avoiding the nut 5 from being rusted, and facilitating subsequent disassembling work.

The second embodiment is different from the first embodiment in that, as shown in fig. 5 and 6, the limiting unit includes a hexagonal plate 9 with a through hole, the hexagonal plate 9 is fixedly disposed in the hexagonal cavity, an annular groove is disposed at the axial center of the hexagonal plate 9, an annular permanent magnet 6 is fixedly disposed on the annular groove, and the through hole, the annular groove and the annular permanent magnet 6 have the same inner diameter as the diameter of the mounting hole, so that the annular permanent magnet 6 and the end surface of the hexagonal head of the bolt 4 can form magnetic adsorption fixation.

It should be noted that the ring-shaped permanent magnet 6 may be made of neodymium-iron-boron strong magnet with strong magnetism

This practical theory of operation: when the pipe fitting is installed on other pipe fittings, one end of a bolt 4 can be inserted into a hexagonal cavity, a hexagonal head moves into the hexagonal cavity, the bolt 4 cannot rotate through the cooperation of the hexagonal cavity and the hexagonal head, the bolt 4 is rotated and limited, at the moment, a wrench is matched with a nut 5 to enable the nut 5 to rotate on a screw rod 4 to be screwed, the operation is simplified, and the pipe fitting is convenient to install;

the elastic limiting strip 8 is made of metal rubber materials, has the inherent characteristics of selected metals, has the elasticity similar to rubber, does not fear the high temperature of 800 degrees and the low temperature of minus 167 degrees below zero, has good wear resistance, corrosion resistance and aging resistance, and has the service life greatly superior to that of common rubber materials;

nut 5 and all be provided with phosphor strip 7 on the outer wall of the ring flange 2 corresponding with nut 5, whether the accessible is observed phosphor strip 7 on nut 5 and the corresponding phosphor strip 7 that sets up on flange 5 and is judged nut 5 and whether take place to become flexible on same straight line, and phosphor strip 7 can send the light night, is favorable to night inspection nut 5 not flexible.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a novel easy to assemble's nodular pipe fitting, includes three way type nodular pipe fitting (1), three group's ring flanges (2) of three way type nodular pipe fitting (1) all through bolt (4) and nut (5) and pipe fitting fixed connection, its characterized in that: three group flange dish (2) are kept away from one of installation end and are the fixed welding of circumference and have a plurality of hollow stopper (3), just hollow stopper (3) with mounting hole on flange dish (2) corresponds the setting, and both set up with the axle center, set up on hollow stopper (3) with the hexagonal chamber of the hexagon head looks adaptation of bolt (4), still including be used for with the hexagon head of bolt (4) is fixed spacing the spacing unit in the hexagonal chamber.

2. The novel easy-to-install spheroidal graphite pipe fitting according to claim 1, characterized in that: the limiting unit comprises an elastic limiting strip (8), the elastic limiting strip (8) is provided with a plurality of parts, the elastic limiting strip (8) is fixedly installed in a groove formed in the inner wall of the hexagonal cavity, and the elastic limiting strip (8) and the end face of the hexagonal head are in arc-shaped contact.

3. The novel easy-to-install spheroidal graphite pipe fitting according to claim 2, characterized in that: the outer surface of the elastic limiting strip (8) is provided with a ZS-711 inorganic anticorrosive coating.

4. The novel easy-to-install spheroidal graphite pipe fitting according to claim 1, characterized in that: the limiting unit comprises a hexagonal plate (9) with a through hole, the hexagonal plate (9) is fixedly arranged in the hexagonal cavity, an annular groove is formed in the axis of the hexagonal plate (9), an annular permanent magnet (6) is fixedly arranged on the annular groove, and the through hole, the annular groove and the inner diameter of the annular permanent magnet (6) are the same as the diameter of the mounting hole.

5. The novel easily-installed spheroidal graphite pipe fitting according to any one of claims 1 to 4, wherein: nut (5) and with nut (5) are corresponding all be provided with phosphor strip (7) on the outer wall of ring flange (2), work as ring flange (2) all fasten the back through bolt (4) and nut (5) and other pipe fittings, phosphor strip (7) and the corresponding setting on the nut (5) phosphor strip (7) on ring flange (2) are on same straight line.

6. The novel easily-installed spheroidal graphite pipe fitting according to any one of claims 1 to 4, wherein: one end of the nut (5) is open, the other end of the nut is sealed, and a threaded cavity is formed in the nut.