Combined ring forging

Abstract

The utility model discloses a combined type ring forge piece which comprises a main pipe body, a first flange plate and a second flange plate are arranged at the two ends of the main pipe body respectively, an annular step groove is formed in the inner side of the first flange plate, and a positioning inserting groove is formed in the bottom face of the annular step groove. A positioning pipe is inserted into the end, located in the annular step groove, of the main pipe body, the outer end of the positioning pipe is fixedly connected with a positioning plate carried on the annular step groove and flush with the outer end face of the first flange plate, a positioning hole penetrating through the positioning plate is formed in the middle of the positioning pipe, and a positioning insertion block inserted into the positioning insertion groove in a matched mode is arranged on the outer side of the positioning pipe. The combined ring forging is used for connecting two pipe fittings with different cross sections, and has a stable connecting effect on pipe fittings with smaller cross sections.

Description

Technical Field

[0001] The utility model relates to a ring segment, in particular to a combined ring forging. Background Art

[0002] The butt connection between two different pipe fittings is usually achieved by flange connection, that is, the flange plates at the ends of the two pipe fittings are locked and connected by multiple bolts.

[0003] For example, Chinese patent CN202221664952.X discloses a pressure-equalizing force flange connection mechanism, including: a connecting pipe, one end of which is provided with a flange plate; a flange pipe, which is arranged at one end of the connecting pipe and is connected to the connecting pipe; one end of the flange pipe is provided with a flange connecting seat connected to the flange plate; a pressure-equalizing positioning device, which is arranged between the flange connecting seat and the flange plate, and the pressure-equalizing positioning device includes at least three countersunk holes circumferentially spaced apart and arranged on the side of the flange connecting seat away from the flange plate, an arc groove connecting adjacent countersunk holes, and an annular gasket embedded in the countersunk holes and the arc groove.

[0004] In this pressure-equalizing flange connection mechanism, the installation stability of the connecting pipe is completely dependent on the flange connected to it, that is, the installation stability of the connecting pipe is ensured by the connection position of the two. The contact surface between the two is only the bending point, and the contact surface is limited, resulting in weak stability of the connecting pipe, especially when the cross-sectional area of ​​the connecting pipe is smaller than the cross-sectional area of ​​the flange pipe, the stability is even weaker. Utility Model Content

[0005] The utility model aims to provide a combined ring forging, which is used for connecting two pipe fittings with different cross sections and has a stable connection effect for pipe fittings with smaller cross-sectional areas.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a combined ring forging, which includes a main pipe body, a first flange plate and a second flange plate are respectively provided at both ends of the main pipe body, an annular step groove is provided on the inner side of the first flange plate, a positioning slot is provided on the bottom surface of the annular step groove, a positioning tube is inserted into one end of the main pipe body located in the annular step groove, a positioning plate mounted on the annular step groove and flush with the outer end surface of the first flange plate is fixedly connected to the outer end of the positioning tube, a positioning hole penetrating the positioning plate is provided in the middle of the positioning tube, and a positioning plug that fits into the positioning slot is provided on the outer side of the positioning tube.

[0007] Preferably, a plurality of the positioning slots are arranged along the circumferential direction of the main pipe body; the plurality of positioning slots are spiral grooves spiraling in the same direction, and the positioning plug is a spiral plug helically matched with the spiral groove.

[0008] Preferably, the edge of the upper opening of the spiral groove is configured as a rounded chamfer or an oblique chamfer.

[0009] Preferably, a plurality of notches are provided on the outer periphery of the positioning plate and at one end facing away from the positioning tube.

[0010] Preferably, the plurality of notches are arranged at equal intervals along the circumferential direction.

[0011] Preferably, the positioning hole is a circular hole or a rectangular hole.

[0012] Preferably, a plurality of countersunk holes are circumferentially arranged on the first flange plate and the second flange plate.

[0013] According to the above technical scheme, the utility model provides a combined ring forging, which includes a main pipe body, a first flange plate and a second flange plate are respectively provided at both ends of the main pipe body, an annular step groove is provided on the inner side of the first flange plate, a positioning slot is provided on the bottom surface of the annular step groove, a positioning tube is inserted into one end of the main pipe body located in the annular step groove, the outer end of the positioning tube is fixedly connected to a positioning plate mounted on the annular step groove and flush with the outer end surface of the first flange plate, a positioning hole is provided in the middle of the positioning tube and a positioning plug is provided on the outer side of the positioning tube to fit into the positioning slot.

[0014] The use and beneficial effects of the combined ring forging are as follows: when in use, the combined ring forging is installed between the main pipeline and the auxiliary pipeline, the second flange plate is connected to the fourth flange plate on the main pipeline by bolts, and the first flange plate is connected to the third flange plate on the auxiliary pipeline by bolts, wherein before the first flange plate is connected to the third flange plate, the positioning tube is first inserted into the main pipe body, and the positioning plate is mounted in the annular step groove, and the rotational positioning is achieved by the cooperation of the positioning plug and the positioning slot, and then the positioning tube and the positioning plate are pressed as a whole by the third flange plate to achieve radial positioning. By replacing different combinations of positioning tubes and positioning plates, and adjusting positioning holes of different specifications and shapes, the extension section of the auxiliary pipeline close to one end of the main pipeline can fit into the positioning hole to achieve further positioning, and the stability of the auxiliary pipeline after connection is increased by increasing the contact surface between the auxiliary pipeline and the combined ring forging.

[0015] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the assembly structure of a preferred embodiment of the combined ring forging;

[0018] Figure 2 yes Figure 1 Schematic diagram of the structure viewed from above;

[0019] Figure 3 yes Figure 2 AA cross-sectional structural diagram;

[0020] Figure 4 It is a disassembly schematic diagram of a preferred embodiment of the combined ring forging.

[0021] Description of Reference Numerals

[0022] 1-main body; 2-second flange plate; 3-first flange plate; 4-third flange plate; 5-fourth flange plate; 6-main pipeline; 7-bolt; 8-auxiliary pipeline; 9-positioning pipe; 10-notch; 11-extension section; 12-positioning hole; 13-positioning plate; 14-positioning plug; 15-positioning slot; 16-circular chamfer or oblique chamfer; 17-annular step groove; 18-countersunk hole. DETAILED DESCRIPTION

[0023] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0024] In the present utility model, unless otherwise stated, directional words contained in terms such as "up, down, left, right, front, back, inside, outside" merely represent the orientation of the terms in normal usage, or are common names understood by those skilled in the art, and should not be regarded as limitations on the terms.

[0025] See also Figure 1-4 The combined ring forging shown in the figure comprises a main pipe body 1, and the two ends of the main pipe body 1 are respectively provided with a first flange plate 3 and a second flange plate 2, the inner side of the first flange plate 3 is provided with an annular step groove 17, and the bottom surface of the annular step groove 17 is provided with a positioning slot 15, and the main pipe body 1 is located at one end of the annular step groove 17 and is inserted with a positioning pipe 9, and the outer end of the positioning pipe 9 is fixedly connected with a positioning plate 13 mounted on the annular step groove 17 and flush with the outer end surface of the first flange plate 3, the middle part of the positioning pipe 9 is provided with a positioning hole 12 penetrating the positioning plate 13, and the outer side of the positioning pipe 9 is provided with a positioning plug 14 that fits into the positioning slot 15.

[0026] Through the implementation of the above technical scheme, the use of the combined ring forging to connect the main pipe 6 and the auxiliary pipe 8 is used as an example for explanation. The cross-sectional diameter of the auxiliary pipe 8 is smaller than the cross-sectional diameter of the main pipe 6. When in use, the combined ring forging is installed between the main pipe 6 and the auxiliary pipe 8, and the second flange plate 2 is connected to the fourth flange plate 5 on the main pipe 6 by bolts 7, and the first flange plate 3 is connected to the third flange plate 4 on the auxiliary pipe 8 by bolts 7. Before the first flange plate 3 is connected to the third flange plate 4, the positioning tube 9 is first inserted into the main pipe body 1, and the positioning plate 13 is mounted in the annular step groove 17. The rotational positioning is achieved by the cooperation of the positioning plug 14 and the positioning slot 15, and then the positioning tube 9 and the positioning plate 13 are pressed as a whole by the third flange plate 4 to achieve radial positioning.

[0027] By replacing different combinations of positioning tubes 9 and positioning plates 13 and adjusting positioning holes 12 of different specifications and shapes, the extension section 11 of the secondary pipe 8 close to one end of the main pipe 6 can fit into the positioning hole 12 to achieve further positioning, and the stability of the secondary pipe 8 after connection is increased by increasing the contact surface between the secondary pipe 8 and the combined ring forging.

[0028] In the present invention, the cross section of the main pipe body 1 is the same as that of the main pipe 6 and both are larger than the cross section area of ​​the auxiliary pipe. The stability of the auxiliary pipe 8 is increased by increasing the contact area between the extension section 11 of the auxiliary pipe 8 and the positioning pipe 9.

[0029] In this embodiment, a plurality of positioning slots 15 are provided along the circumferential direction of the main body 1; the plurality of positioning slots 15 are spiral grooves spiraling in the same direction, and the positioning plug 14 is a spiral plug that is spirally matched with the spiral groove. By installing the positioning tube 9 in this way, the spiral plug is spirally matched with the spiral groove, so that there is no need to worry about the positioning tube 9 accidentally falling off when installing the third flange.

[0030] In this embodiment, the edge of the upper opening of the spiral groove is set as a rounded chamfer or an oblique chamfer 16. By setting the rounded chamfer or the oblique chamfer 16, the end of the positioning plug 14 can be inserted into the outer port of the spiral groove more quickly.

[0031] In this embodiment, a plurality of notches 10 are provided on the outer periphery of the positioning plate 13 and at one end facing away from the positioning tube 9. The plurality of notches 10 are provided to facilitate the positioning plate 13 to be rotated in two notches 10 by means of a tool, so as to facilitate the insertion of the positioning tube 9 into the main body 1.

[0032] In this embodiment, in order to further provide an arrangement method of the notches 10, a plurality of the notches 10 are arranged at equal intervals along the circumferential direction.

[0033] In this embodiment, the positioning hole 12 is a circular hole or a rectangular hole. Through such a setting, the positioning hole 12 can be inserted into the secondary pipe 8 with a circular or rectangular cross section.

[0034] In this embodiment, in order to further provide a first flange plate 3 and a second flange plate 2 , a plurality of countersunk holes 18 are circumferentially arranged on the first flange plate 3 and the second flange plate 2 .

[0035] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0036] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0037] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A combined ring forging, characterized in that: The combined ring forging comprises a main pipe body (1), the two ends of the main pipe body (1) are respectively provided with a first flange plate (3) and a second flange plate (2), the inner side of the first flange plate (3) is provided with an annular step groove (17), the bottom surface of the annular step groove (17) is provided with a positioning slot (15), a positioning pipe (9) is inserted into one end of the main pipe body (1) located in the annular step groove (17), the outer end of the positioning pipe (9) is fixedly connected with a positioning plate (13) mounted on the annular step groove (17) and flush with the outer end surface of the first flange plate (3), the middle part of the positioning pipe (9) is provided with a positioning hole (12) penetrating the positioning plate (13), and the outer side of the positioning pipe (9) is provided with a positioning plug (14) which fits into and is inserted into the positioning slot (15).

2. The combined ring forging according to claim 1, characterized in that: A plurality of positioning slots (15) are arranged along the circumferential direction of the main tube (1); The plurality of positioning slots (15) are spiral grooves spiraling in the same direction, and the positioning plug block (14) is a spiral plug block spirally matched with the spiral grooves.

3. The combined ring forging according to claim 2, characterized in that: The edge of the upper opening of the spiral groove is configured as a rounded chamfer or an oblique chamfer (16).

4. The combined ring forging according to claim 2, characterized in that: A plurality of notches (10) are provided on the outer peripheral edge of the positioning plate (13) and at one end facing away from the positioning tube (9).

5. The combined ring forging according to claim 4, characterized in that: The plurality of notches (10) are arranged at equal intervals along the circumferential direction.

6. The combined ring forging according to claim 1, characterized in that: The positioning hole (12) is a circular hole or a rectangular hole.

7. The combined ring forging according to claim 1, characterized in that: The first flange plate (3) and the second flange plate (2) are both provided with a plurality of countersunk holes (18) along the circumferential direction.

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