High-compression-resistance spheroidal graphite casting

Abstract

The utility model discloses a spheroidal graphite casting with high pressure resistance, which relates to the technical field of spheroidal graphite castings and comprises a pair of ring pieces, annular seats are arranged on the sides, close to each other, of the two ring pieces, and first ring grooves are formed in the sides, away from each other, of the two annular seats. The sides, close to each other, of the two annular bases are integrally connected with a plurality of protruding bases distributed in the circumferential direction. The high-compression-resistance spheroidal graphite casting is a pipeline connecting spheroidal graphite casting, the connecting inserting columns are inserted into the connecting inserting holes, primary positioning and clamping can be achieved, meanwhile, the bearing pressure of a connecting mechanism can be effectively shared, the compression resistance of the whole spheroidal graphite casting after connection can be effectively improved, and after fixed connection is completed, the connecting inserting columns are not prone to falling off. The front face of the magnet sealing piece can be attached to the inner wall of the sealing cover, sealing of the opening can be achieved, the anti-corrosion performance is high, follow-up disassembly and assembly are facilitated, bolts and nuts are not exposed, the hiding performance is good, and the attractiveness is high.

Description

Technical Field

[0001] The utility model relates to the technical field of ductile iron castings, in particular to a high-pressure ductile iron casting. Background Art

[0002] Ductile iron castings are iron castings in which graphite exists in spherical form. They have higher strength, toughness and wear resistance and are often used to cast parts with complex forces and high requirements for strength, toughness and wear resistance.

[0003] At present, some pipeline connectors are usually made of ductile iron castings. For example, flanges are welded to the pipeline at one end. At this time, the two flanges are aligned and then bolts are passed through the two mounting holes and fixed with nuts. However, this structure has the following defects: after the two flanges are fixedly connected, all the pressure is completely borne by the bolts, and the bolts and nuts are exposed, which are easy to corrode and reduce strength. In the long run, the bolts are easy to deform and break, and the connection stability is poor. Utility Model Content

[0004] The utility model provides a high-pressure-resistant ductile iron casting, which has the advantages of high pressure resistance and stable connection, and solves the problems raised in the background technology.

[0005] In order to solve the defect of low pressure resistance of existing high-pressure ductile castings, the utility model provides the following technical solutions: a high-pressure ductile casting, comprising a pair of ring sheets, two ring sheets are provided with annular seats on the sides close to each other, and the two annular seats are provided with a first annular groove on the sides away from each other, and the two annular seats are integrally connected with a plurality of circumferentially distributed protrusions on the sides close to each other, one group of protrusions is provided with a connecting socket on the side close to the other group of protrusions, and the other group of protrusions is integrally connected with a connecting plug inserted into the connecting socket on the side close to the one group of protrusions, one of the annular seats is provided with a plurality of circumferentially distributed threaded holes on the side close to the other annular seat, and the other annular seat is provided with a plurality of circumferentially distributed circular holes on the side close to one of the annular seats, a connecting mechanism connected to the threaded holes is inserted into the circular hole, the two ring sheets are integrally connected with a connecting cylinder on the sides close to each other, and a sealing mechanism is connected between the two ring sheets.

[0006] As a preferred technical solution of the utility model, the connecting mechanism includes a stud, the stud is sleeved with a nut, the nut is integrally connected to the stud, and the other end of the stud is integrally connected to a circular stopper.

[0007] As a preferred technical solution of the utility model, the stud passes through the circular hole and is threadedly connected to the threaded hole, and the circular stopper is received in the first annular groove.

[0008] As a preferred technical solution of the utility model, the annular seat is fixedly connected to the ring piece by bolts.

[0009] As a preferred technical solution of the utility model, the sealing mechanism includes a pair of sealing covers, the two sealing covers are respectively welded to the sides of the two ring sheets close to each other, the outer wall of the other sealing cover is provided with a plurality of circumferentially distributed openings, the inner wall of the other sealing cover is movably connected with a plurality of circumferentially distributed magnet sealing sheets, the magnet sealing sheets are tightly fitted on the inner wall of the other sealing cover, the inner wall of the other sealing cover is inlaid with a plurality of iron sheets, the magnet sealing sheets are also fitted on the iron sheets, and the outer wall of the magnet sealing sheets is provided with an arc channel.

[0010] As a preferred technical solution of the utility model, a second annular groove is provided on the side where the two connecting tubes are close to each other, a third annular groove is provided on the side where the two sealing covers are close to each other, and the magnet sealing sheet is wrapped with a sealing rubber sleeve.

[0011] Compared with the prior art, the utility model provides a high-pressure ductile iron casting, which has the following beneficial effects:

[0012] 1. This high-pressure ductile iron casting is a ductile iron casting for connecting pipes. The connecting pin is inserted into the connecting socket to achieve preliminary positioning and clamping, which is convenient for the subsequent threaded fixed connection between the connecting mechanism and the threaded hole. At the same time, it can also effectively share the pressure of the connecting mechanism, and can effectively improve the pressure resistance of the entire ductile iron casting after connection.

[0013] 2. This kind of high-pressure ductile iron casting is provided with a sealing mechanism. When fixedly installed, the back side of the magnetic sealing sheet is magnetically attached to the inner wall of the sealing cover, and the opening is in an open state, which will not affect the fixed connection. After the fixed connection is completed, the front side of the magnetic sealing sheet can be attached to the inner wall of the sealing cover to achieve the sealing of the opening. It has high corrosion resistance and is convenient for subsequent disassembly and assembly. The bolts and nuts are not exposed, so it has good concealment and high aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of one of the ring pieces of the utility model;

[0016] Figure 3 It is a structural schematic diagram of another ring piece of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the connection mechanism of the utility model;

[0018] Figure 5The utility model is a schematic diagram of the installation structure of the magnet sealing sheet.

[0019] In the figure:

[0020] 10. Ring sheet; 20. Ring seat; 30. Boss seat; 40. Connecting socket; 50. Connecting pin; 60. Threaded hole; 70. Round hole; 80. Connecting mechanism; 81. Stud; 82. Nut; 83. Round stopper; 90. Connecting cylinder; 100. Sealing mechanism; 110. Sealing cover; 120. Opening; 130. Iron sheet; 140. Arc channel; 150. Magnet sealing sheet; 200. Second ring groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 5 The utility model discloses a high-pressure ductile iron casting, including a pair of ring pieces 10, the ring pieces 10 are fixedly connected to the pipeline by welding, the two ring pieces 10 are provided with annular seats 20 on the sides close to each other, the two annular seats 20 are provided with a first annular groove on the sides away from each other, the two annular seats 20 are integrally connected with a plurality of circumferentially distributed protrusions 30 on the sides close to each other, one group of protrusions 30 is provided with a connecting plug hole 40 on the side close to the other group of protrusions 30, and the other group of protrusions 30 is integrally connected with a connecting plug column 50 inserted into the connecting plug hole 40 on the side close to the one group of protrusions 30, and the connecting plug column 50 can be inserted into the connecting plug hole 40, so as to realize The preliminary positioning and clamping facilitates the subsequent threaded fixed connection between the connecting mechanism 80 and the threaded hole 60, and can also effectively share the pressure borne by the connecting mechanism 80, with strong pressure resistance and stable connection. A plurality of circumferentially distributed threaded holes 60 are opened on the side of one annular seat 20 close to the other annular seat 20, and a plurality of circumferentially distributed circular holes 70 are opened on the side of the other annular seat 20 close to one of the annular seats 20, and a connecting mechanism 80 connected to the threaded hole 60 is inserted into the circular hole 70, and a connecting tube 90 is integrally connected to the sides of the two ring sheets 10 close to each other, and a sealing mechanism 100 is connected between the two ring sheets 10.

[0023] Specifically, the connecting mechanism 80 includes a stud 81, which is sleeved with a nut 82. The nut 82 is integrally connected to the stud 81, and the other end of the stud 81 is integrally connected to a circular stopper 83. The stud 81 passes through the circular hole 70 and is threadedly connected to the threaded hole 60. The circular stopper 83 is received in the first annular groove.

[0024] In this embodiment, the connecting column 50 is inserted into the connecting socket 40, at which time the stud 81 is aligned with the threaded hole 60, and the wrench is passed through the opening 120 and clamped on the nut 82, which can drive the stud 81 to rotate, so that the stud 81 can be threadedly fixedly connected to the threaded hole 60, and finally the circular stopper 83 is tightly pressed against the inner wall of the first annular groove, thereby realizing the fixed connection of the two adjacent pipes.

[0025] Specifically, the annular seat 20 is fixedly connected to the ring sheet 10 by bolts.

[0026] In this embodiment, the annular seat 20 is provided with a disassembly and assembly function, so that the connection mechanism 80 can be easily installed on the annular seat 20 .

[0027] Specifically, the sealing mechanism 100 includes a pair of sealing covers 110, and the two sealing covers 110 are respectively welded to the sides of the two ring plates 10 that are close to each other. The outer wall of the other sealing cover 110 is provided with a plurality of circumferentially distributed openings 120, and the inner wall of the other sealing cover 110 is movably connected with a plurality of circumferentially distributed magnet sealing sheets 150, and the magnet sealing sheets 150 are tightly fitted on the inner wall of the other sealing cover 110, and the inner wall of the other sealing cover 110 is inlaid with a plurality of iron sheets 130, and the magnet sealing sheets 150 are also fitted on the iron sheets 130, and the outer wall of the magnet sealing sheets 150 is provided with an arc channel 140.

[0028] In the present embodiment, during the process of using a wrench to fix the connection mechanism 80, the magnet sealing sheet 150 swings upward at this time, and the back side of the magnet sealing sheet 150 is affixed to the inner wall of the sealing cover 110 (and also affixed to the iron sheet 130), which will not affect the operation of the staff. After completing the operation, the fingers can be inserted into the arc channel 140 to make the magnet sealing sheet 150 swing downward, and the front side of the magnet sealing sheet 150 magnetically affixed to the inner wall of the sealing cover 110, so as to achieve the sealing of the opening 120.

[0029] Specifically, the second annular groove 200 is formed on the sides of the two connecting tubes 90 that are close to each other, the third annular groove is formed on the sides of the two sealing covers 110 that are close to each other, and the magnet sealing sheet 150 is wrapped with a sealing rubber sleeve.

[0030] In this embodiment, sealing rings can be embedded in the second annular groove 200 and the third annular groove, which can effectively improve the sealing of the two adjacent connecting tubes 90, and no leakage will occur when transporting liquid. The sealing between the two adjacent sealing covers 110 can be effectively improved, and the corrosion resistance is strong. The setting of the sealing rubber sleeve can improve the sealing after the opening 120 is blocked, and the corrosion resistance is strong.

[0031] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-pressure ductile iron casting, characterized in that: The invention comprises a pair of ring plates (10), wherein the sides of the two ring plates (10) close to each other are each provided with an annular seat (20), the sides of the two annular seats (20) away from each other are each provided with a first annular groove, the sides of the two annular seats (20) close to each other are each integrally connected with a plurality of circumferentially distributed protrusions (30), wherein a side of one group of the protrusions (30) close to the other group of the protrusions (30) is provided with a connecting jack (40), and a side of the other group of the protrusions (30) close to the first group of the protrusions (30) is integrally connected with a connecting jack (40) inserted into the connecting jack (40). The plug post (50) comprises a plurality of threaded holes (60) distributed circumferentially on one side of one of the annular seats (20) close to the other annular seat (20), and a plurality of circular holes (70) distributed circumferentially on the other side of the other annular seat (20), wherein a connecting mechanism (80) connected to the threaded hole (60) is inserted into the circular hole (70), and a connecting tube (90) is integrally connected to the two sides of the two annular plates (10) close to each other, and a sealing mechanism (100) is connected between the two annular plates (10).

2. The high pressure ductile iron casting according to claim 1, characterized in that: The connection mechanism (80) comprises a stud (81), the stud (81) is sleeved with a nut (82), the nut (82) is integrally connected to the stud (81), and the other end of the stud (81) is integrally connected to a circular stopper (83).

3. The high pressure resistant ductile iron casting according to claim 2, characterized in that: The stud (81) passes through the circular hole (70) and is threadedly connected to the threaded hole (60), and the circular stopper (83) is received in the first annular groove.

4. The high pressure resistant ductile iron casting according to claim 1, characterized in that: The annular seat (20) is fixedly connected to the annular plate (10) by bolts.

5. The high pressure resistant ductile iron casting according to claim 1, characterized in that: The sealing mechanism (100) comprises a pair of sealing covers (110), the two sealing covers (110) are respectively welded to the mutually adjacent sides of the two ring sheets (10), the outer wall of the other sealing cover (110) is provided with a plurality of circumferentially distributed openings (120), the inner wall of the other sealing cover (110) is movably connected with a plurality of circumferentially distributed magnet sealing sheets (150), the magnet sealing sheets (150) are tightly fitted on the inner wall of the other sealing cover (110), the inner wall of the other sealing cover (110) is inlaid with a plurality of iron sheets (130), the magnet sealing sheets (150) are also fitted on the iron sheets (130), and the outer wall of the magnet sealing sheets (150) is provided with an arc-shaped channel (140).

6. The high pressure resistant ductile iron casting according to claim 5, characterized in that: A second annular groove (200) is provided on the side of the two connecting tubes (90) close to each other, a third annular groove is provided on the side of the two sealing covers (110) close to each other, and the magnet sealing sheet (150) is wrapped with a sealing rubber sleeve.

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