CN219510335U

CN219510335U - Screw pipe connecting structure with expansion connecting piece

Info

Publication number: CN219510335U
Application number: CN202320110524.0U
Authority: CN
Inventors: 赵中正; 赵忠明; 赵俊峰
Original assignee: Hebei Goldman Sachs Heat Preservation And Anticorrosion Building Materials Co ltd
Current assignee: Hebei Goldman Sachs Heat Preservation And Anticorrosion Building Materials Co ltd
Priority date: 2023-01-16
Filing date: 2023-01-16
Publication date: 2023-08-11
Anticipated expiration: 2033-01-16

Abstract

The utility model discloses a screw pipe connecting structure with an expansion connecting piece, which relates to the technical field of pipeline connection and comprises two screw pipe sections, wherein flanges are arranged at the connecting end parts of the two screw pipe sections, a sealing gasket is arranged between the two flanges, the two flanges are fixed together through a bolt assembly, main expansion anchor hoops are sleeved on the outer sides of the two flanges, and at least one auxiliary expansion anchor hoop is sleeved on the screw pipe sections at the two sides of the main expansion anchor hoops; the two adjacent auxiliary expansion hoops are connected through a first clamping structure; the main expansion anchor ear and the screw pipe section and the auxiliary expansion anchor ear and the screw pipe section are connected through a second clamping structure. The utility model strengthens the structural strength of the pipeline at the connecting flange through the main and auxiliary expansion structures, is convenient to integrally install and use, and can be applied to the laying of spiral steel pipes with various sizes.

Description

Screw pipe connecting structure with expansion connecting piece

Technical Field

The utility model relates to the technical field of pipeline connection, in particular to a screw pipe connection structure with an expansion connecting piece.

Background

The spiral pipe is also called spiral steel pipe or spiral welded pipe, which is made up by rolling low carbon structural steel or low alloy structural steel strip into pipe blank according to a certain spiral angle (called forming angle), then welding the pipe seam together. The existing spiral pipes are connected through flange structures, compared with welding modes, the flange connection is detachable, the later-stage pipeline maintenance is convenient, but the structural strength of the flange connection is usually low, and the flange connection is easy to break.

Disclosure of Invention

Based on the above problems, the utility model aims to provide a screw pipe connecting structure with an expansion connecting piece, which adopts the following technical scheme:

the utility model provides a screw pipe connecting structure with an expansion connecting piece, which comprises two screw pipe sections, wherein flanges are arranged at the connecting end parts of the two screw pipe sections, a sealing gasket is arranged between the two flanges, the two flanges are fixed together through a bolt assembly, main expansion anchor ear is sleeved on the outer sides of the two flanges, and at least one auxiliary expansion anchor ear is sleeved on the screw pipe sections at the two sides of the main expansion anchor ear;

the two adjacent auxiliary expansion hoops are connected through a first clamping structure;

the main expansion anchor ear and the screw pipe section and the auxiliary expansion anchor ear and the screw pipe section are connected through a second clamping structure.

Preferably, the main expansion anchor ear comprises two semicircular main anchor rings, the two main anchor rings are assembled and sleeved on the two flanges, semicircular main anchor sheets are arranged on two sides of the main anchor rings, and the extending ends of the main anchor sheets are provided with main anti-falling rings protruding outwards;

the auxiliary expansion anchor ear comprises two semicircular auxiliary holding pieces, one end of each auxiliary holding piece is provided with a semicircular outward expansion ring body, and one end of each auxiliary holding piece is provided with an auxiliary anti-drop ring protruding outwards;

the main anti-slip ring is connected with the outer expansion ring body and the auxiliary anti-slip ring is connected with the outer expansion ring body through a first clamping structure;

the main holding piece is connected with the solenoid section, and the auxiliary holding piece is connected with the solenoid section through a second clamping structure.

Preferably, the first clamping structure comprises a plurality of first semi-annular grooves and first semi-annular protrusions which are in arc embedded fit; the first semi-annular groove is arranged on the inner wall of the outer expansion ring body, and the first semi-annular protrusion is arranged on the outer walls of the main anti-drop ring and the auxiliary anti-drop ring.

Preferably, the second clamping structure comprises a plurality of second semi-annular grooves and second semi-annular protrusions which are in arc embedded fit; the second semi-annular groove is arranged on the outer wall of the spiral pipe section, and the second semi-annular protrusions are arranged on the inner walls of the main holding piece and the auxiliary holding piece.

Compared with the prior art, the utility model has the beneficial technical effects that:

the utility model strengthens the structural strength of the pipeline at the connecting flange through the main and auxiliary expansion structures, is convenient to integrally install and use, and can be applied to the laying of spiral steel pipes with various sizes.

Drawings

The utility model is further described with reference to the following description of the drawings.

FIG. 1 is a front cross-sectional view of a coil connection structure with an expansion joint of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic structural view of an auxiliary expansion anchor ear in the present utility model;

fig. 4 is a schematic diagram of a front view structure of a main expansion anchor ear in the present utility model.

Reference numerals illustrate: 1. a helical pipe section; 2. a flange; 3. a sealing gasket; 4. a main expansion hoop; 401. a main holding ring; 402. a main holding piece; 403. a main anti-drop ring; 404 reinforcing ribs; 5. auxiliary expansion anchor ear; 501. auxiliary holding pieces; 502. an outer expansion ring body; 503. an auxiliary anti-drop ring; 6. a first clamping structure; 601. a first half annular groove; 602. a first semi-annular protrusion; 7. a second clamping structure; 701. two semi-annular grooves; 702. and a second semi-annular protrusion.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It should be noted that the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

As shown in fig. 1, this embodiment discloses a screw connection structure with expansion connector, including two screw sections 1, the connection tip of two screw sections 1 all is provided with flange 2, is provided with sealing gasket 3 between two flange 2, and two flange 2 are in the same place through the bolt assembly fixation. The outer sides of the two flanges 2 are sleeved with main expansion hoops 4, and the screw pipe sections 1 on two sides of the main expansion hoops 4 are sleeved with at least one auxiliary expansion hoop 5.

The two adjacent auxiliary expansion hoops 5 are connected through a first clamping structure 6, and the auxiliary expansion hoops 5 positioned at the head part are connected with the main expansion hoops 4. The main expansion anchor ear 4 and the screw pipe section 1 are connected with the auxiliary expansion anchor ear 5 and the screw pipe section 1 through the second clamping structure 7.

In this embodiment, the main expansion anchor ear 4 includes two semicircular main arming rings 401, and two main arming rings 401 are assembled and then are sleeved on two flanges 2, and the two ends of each main arming ring 401 are provided with mounting lugs protruding outwards, and mounting holes are formed in the mounting lugs, and the two mounting lugs on the same side are fixed together after penetrating through the mounting holes through bolt assemblies. Semicircular main holding pieces 402 are arranged on two sides of the main holding ring 401, and an extending end of the main holding piece 402 is provided with a main anti-drop ring 403 protruding outwards. The auxiliary expansion anchor ear 5 comprises two semicircular auxiliary holding pieces 501, one end of each auxiliary holding piece 501 is provided with a semicircular outer expansion ring body 502, and one end of each auxiliary holding piece 501 is provided with an auxiliary anti-drop ring 503 protruding outwards.

When in installation, the main anti-drop ring 403 and the outer expansion ring body 502, and the auxiliary anti-drop ring 503 and the outer expansion ring body 502 are connected by the first clamping structure 6. The main holding piece 402 and the screw section 1, and the auxiliary holding piece 501 and the screw section 1 are connected through the second clamping structure 7.

As shown in fig. 2 and 3, in the present embodiment, the first clamping structure 6 includes a plurality of first half annular grooves 601 and first half annular protrusions 602 that are arcuately fit in a snap fit. In this embodiment, a first half annular groove 601 is provided on the inner wall of the flaring ring 502, and a first half annular protrusion 602 is provided on the outer walls of the primary and secondary anti-slip rings 403, 503.

The second clamping structure 7 comprises a plurality of arc-shaped embedded and matched second semi-annular grooves 701 and second semi-annular protrusions 702; the second semi-annular groove 701 is arranged on the outer wall of the spiral pipe section 1, and the second semi-annular protrusion 702 is arranged on the inner walls of the main holding piece 402 and the auxiliary holding piece 501.

As shown in fig. 4, in this embodiment, a reinforcing rib is provided between the main band 401 and the main band 402, so as to improve the overall structural strength of the main expansion hoop 4.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims

1. The utility model provides a screwed connection structure with expand connecting piece, includes two screwed segments (1), two screwed segments (1)'s connection tip all is provided with flange (2), two be provided with sealing gasket (3) between flange (2), and two flange (2) are in the same place through the bolt assembly fixed, its characterized in that: the outer sides of the two flanges (2) are sleeved with main expansion hoops (4), and the screw pipe sections (1) on two sides of the main expansion hoops (4) are sleeved with at least one auxiliary expansion hoop (5);

the two adjacent auxiliary expansion hoops (5) are connected through a first clamping structure (6), and the auxiliary expansion hoops (5) positioned at the head part are connected with the main expansion hoops (4);

the main expansion anchor ear (4) and the screw pipe section (1) and the auxiliary expansion anchor ear (5) and the screw pipe section (1) are connected through a second clamping structure (7).

2. The coil connection structure with expansion joint according to claim 1, wherein: the main expansion anchor ear (4) comprises two semicircular main anchor rings (401), the two main anchor rings (401) are assembled and sleeved on the two flanges (2), semicircular main anchor sheets (402) are arranged on two sides of each main anchor ring (401), and main anti-falling rings (403) protruding outwards are arranged at the extending ends of the main anchor sheets (402);

the auxiliary expansion hoop (5) comprises two semicircular auxiliary holding pieces (501), one end of each auxiliary holding piece (501) is provided with a semicircular outer expansion ring body (502), and one end of each auxiliary holding piece (501) is provided with an auxiliary anti-drop ring (503) protruding outwards;

the main anti-drop ring (403) is connected with the outer expansion ring body (502) and the auxiliary anti-drop ring (503) is connected with the outer expansion ring body (502) through a first clamping structure (6);

the main holding piece (402) is connected with the solenoid section (1) and the auxiliary holding piece (501) is connected with the solenoid section (1) through a second clamping structure (7).

3. The coil connection structure with expansion connector of claim 2, wherein: the first clamping structure (6) comprises a plurality of first half annular grooves (601) and first half annular protrusions (602) which are in arc embedded fit;

the first semi-annular groove (601) is arranged on the inner wall of the flaring ring body (502), and the first semi-annular bulge (602) is arranged on the outer walls of the main anti-drop ring (403) and the auxiliary anti-drop ring (503).

4. The coil connection structure with expansion connector of claim 2, wherein: the second clamping structure (7) comprises a plurality of arc-shaped embedded and matched second semi-annular grooves (701) and second semi-annular protrusions (702);

the second semi-annular groove (701) is arranged on the outer wall of the solenoid section (1), and the second semi-annular protrusion (702) is arranged on the inner walls of the main holding piece (402) and the auxiliary holding piece (501).