CN204901170U - Prevent sealing washer three way connection that drops - Google Patents

Abstract

The utility model discloses a prevent sealing washer three way connection that drops, including the direct pipe of interior line, seal groove, protruding, the hexagonal cutting ferrule of seal groove card, the direct pipe of outer line, be equipped with the seal groove on the direct pipe both ends face of interior line respectively, it is protruding to be equipped with the seal groove card in the seal groove respectively, the protruding cross -section of seal groove card is semi -circular, the direct pipe middle part of interior line is connected with the direct pipe of outer line perpendicularly, the direct pipe of outer line is close to the junction with the direct pipe of interior line and is equipped with the hexagon cutting ferrule respectively. The utility model discloses a with protruding with establishing the seal groove card in the seal groove, make the sealing washer not drop in the installation, guarantee that the kneck leakproofness is good.

Description

An anti-seal ring drop tee joint

【Technical field】

The utility model relates to the technical field of pipeline connection, in particular to the technical field of a three-way joint for preventing the sealing ring from falling.

【Background technique】

The tee joint is a kind of pipe fitting. Its connection form is to directly butt weld the tee with the steel pipe. Later, because the auxiliary process of the method is too complicated and inconvenient to disassemble, a threaded tee joint, threaded tee joint Compared with ordinary welded tee joints, it is more convenient to install threaded connections, and in order to prevent liquid leakage at the joints, sealing grooves and sealing rings are generally added on the end faces of the tee joints, but the sealing rings tend to fall off easily during installation Inconvenience caused by installation work.

【Content of utility model】

The purpose of the utility model is to solve the problems in the prior art, and propose an anti-seal ring drop tee joint, which can prevent the seal ring from falling during installation and ensure good sealing at the joint.

In order to achieve the above purpose, the utility model proposes an anti-seal ring drop tee joint, which includes an inner threaded straight pipe, a sealing groove, a sealing groove card protrusion, a hexagonal ferrule, and an outer threaded straight pipe. The two ends of the straight-through pipe are respectively provided with sealing grooves, and the sealing grooves are respectively provided with sealing groove protrusions. The cross-section of the sealing groove protrusions is semicircular. tube, and the outer threaded straight-through pipe and the inner threaded straight-through pipe are respectively provided with hexagonal ferrules near the connection.

Preferably, the two ends of the through-hole of the internally threaded straight-through pipe are respectively provided with internal threads.

As a preference, two sections of external thread are provided on the outer surface of the externally threaded straight-through pipe, which are respectively an upper thread and a lower thread, and the upper thread is provided with a nut and a washer.

As a preference, the outer edges of both ends of the inner-grooved straight-through pipe are respectively provided with 45-degree chamfers.

As a preference, a 45-degree chamfer is provided on the edge of the end of the outer threaded straight-through pipe.

Preferably, the shape formed by the outer lines of the section of the hexagonal ferrule is a regular hexagon.

Preferably, an elastic sealing ring is arranged in the sealing groove.

Beneficial effects of the utility model: the utility model adds a sealing groove to the sealing groove so that the sealing ring does not fall during the installation process and ensures good sealing at the interface.

The features and advantages of the utility model will be described in detail through embodiments in conjunction with the accompanying drawings.

【Description of drawings】

Fig. 1 is a front half-sectional view of an anti-seal ring drop tee joint of the utility model;

Fig. 2 is an enlarged view of a sealing groove of a tee joint for preventing the sealing ring from falling of the utility model;

Fig. 3 is a sectional view of A-A in Fig. 1 .

In the figure: 1-inner thread straight-through pipe, 11-sealing groove, 111-sealing groove card protrusion, 2-outer thread straight-through pipe, 3-hexagon ferrule.

【Detailed ways】

Referring to Fig. 1, Fig. 2 and Fig. 3, the utility model is an anti-seal ring drop tee joint, which includes an inner thread straight-through pipe 1, a sealing groove 11, a sealing groove card protrusion 111, a hexagonal ferrule 3, and an outer thread Straight-through pipe 2, sealing grooves 11 are respectively provided on both ends of the inner-grained straight-through pipe 1, and sealing groove protrusions 111 are respectively provided in the sealing grooves 11, and the cross-section of the sealing groove protrusions 111 is semicircular. The middle part of the straight-through pipe 1 with inner lines is vertically connected with the straight-through pipe 2 with outer lines, and the straight-through pipe 2 with inner lines and the straight-through pipe 1 with inner lines are respectively provided with hexagonal ferrules 3 near the joints. Both ends of the perforated straight-through pipe 1 with internal threads are respectively provided with internal threads. The outer surface of the straight-through pipe 2 is provided with two sections of external threads, which are respectively an upper thread and a lower thread, and the upper thread is provided with a nut and a washer. The outer edges of the two ends of the straight-through pipe 1 with internal lines are respectively provided with 45 degree chamfers. A 45-degree chamfer is provided on the edge of the 2 ends of the straight-through pipe. The shape formed by the outer edges of the section of the hexagonal ferrule 3 is a regular hexagon. An elastic sealing ring is arranged in the sealing groove 11 .

The utility model discloses an anti-seal ring drop tee joint. The seal ring is not dropped during the installation process by adding a seal groove to the seal groove to ensure good sealing performance at the joint.

The above-mentioned embodiment is an illustration of the utility model, not a limitation of the utility model, and any scheme after a simple transformation of the utility model belongs to the protection scope of the utility model.

Claims (7)

1. an anti-seal circle drops tee union, it is characterized in that: comprise interior line straight-through tube (1), seal groove (11), seal groove card convex (111), Hexagon cutting ferrule (3), outer line straight-through tube (2), described interior line straight-through tube (1) both ends of the surface are respectively equipped with seal groove (11), seal groove card convex (111) is respectively equipped with in described seal groove (11), described seal groove card convex (111) cross section is semicircle, described interior line straight-through tube (1) middle part is vertically connected with outer line straight-through tube (2), described outer line straight-through tube (2) is respectively equipped with Hexagon cutting ferrule (3) with interior line straight-through tube (1) near joint.

2. a kind of anti-seal circle as claimed in claim 1 drops tee union, it is characterized in that: described interior line straight-through tube (1) perforation two end part are respectively equipped with internal thread.

3. a kind of anti-seal circle as claimed in claim 1 drops tee union, it is characterized in that: described outer line straight-through tube (2) outer surface is provided with two sections of outside threads, and be respectively screw thread, lower screw thread, upper screw thread is equipped with nut, pad.

4. a kind of anti-seal circle as claimed in claim 1 drops tee union, it is characterized in that: described interior line straight-through tube (1) two ends outer edge is respectively equipped with 45 degree of chamferings.

5. a kind of anti-seal circle as claimed in claim 1 drops tee union, it is characterized in that: described outer line straight-through tube (2) end sideline is provided with 45 degree of chamferings.

6. a kind of anti-seal circle as claimed in claim 1 drops tee union, it is characterized in that: described Hexagon cutting ferrule (3) cross section outer edge institute formed shape is regular hexagon.

7. the anti-seal circle of the one according to any one of claim 1 to 6 drops tee union, it is characterized in that: described seal groove is equipped with elastic seal ring in (11).