CN204962126U - Screw ditch slot type thin wall stainless steel tee bend pipe fitting - Google Patents

Abstract

The utility model discloses a thread groove type thin-walled stainless steel tee pipe fitting, which comprises a tee and a short connecting pipe connected with the tee. The outer walls of the other two ends of the connection are provided with external threads for connection, and grooves are provided on the outer wall of the short pipe and the tee near the connection between the short pipe and the tee, and the grooves are connected by clips. Short connection and tee. The threaded groove type thin-walled stainless steel tee pipe fittings are equipped with a tee and a short pipe connected by a clamp. When installing, first connect the tee and the short pipe to the pipeline, and then use the clamp to connect the tee and the short pipe. Since the clamp can be rotated 360 degrees, the installation and connection of the three-way pipe fittings is not limited by the angle, direction and space position, which reduces labor intensity and cost, and improves installation efficiency and economic benefits. The utility model is suitable for the pipeline field.

Description

A thread groove type thin-wall stainless steel tee pipe fitting

technical field

The utility model relates to the field of pipelines, in particular to a thread groove type thin-walled stainless steel tee pipe fitting.

Background technique

At present, with the development of society, the development of people's life and environmental protection needs, thin-walled stainless steel pipes are becoming more and more important and larger in various pipe networks and piping systems such as petrochemical, gas, drinking water, etc. market. Among these thin-walled stainless steel pipe connections, compression type, ring pressure type, groove type connection, and arc-shaped taper thread connection are often used, among which arc-shaped taper thread connection is the most economical and best connection Way. The most commonly used stainless steel pipe fitting is the thin wall stainless steel tee, which has an important market position. However, during the installation of the tapered thread tee on the engineering site, there are many constraints on the installation direction and installation space due to the need to rotate and tighten the thread, which in turn affects the application range of the thin-walled stainless steel tapered thread tee. In many cases, it has to be A large number of expensive movable flange tees are used to solve the direction problem during installation, which increases the cost of the entire stainless steel piping system. Therefore, a low-cost threaded tee fitting is urgently needed.

Utility model content

In order to solve the above problems, the utility model provides a thread groove type thin-walled stainless steel tee pipe fitting which is not limited by the space position, is easy to install, and has low cost.

The technical scheme that the utility model solves its technical problem adopts is:

A thread groove type thin-walled stainless steel tee pipe fitting, including a tee and a short connecting pipe connected with the tee, a sealing ring is provided at the interface between the short connecting pipe and the tee, and the other end of the short connecting pipe and the other two ends of the tee are provided with a sealing ring. There are external threads for connection on the outer wall, and grooves are provided on the outer wall of the short pipe and the tee near the connection between the short pipe and the tee, and the short pipe and the tee are connected by clamps in each groove. .

As a further improvement of the technical solution of the utility model, the clamp includes an upper clamp cover and a lower clamp cover, and a cavity for placing a sealing ring is arranged inside the upper clamp cover and the lower clamp cover, and the cross-sectional figures of the upper clamp cover and the lower clamp cover are both U-shaped.

As a further improvement of the technical solution of the utility model, the upper clamping cover and the lower clamping cover are connected by bolts.

As a further improvement of the technical solution of the utility model, the bolts are round head square neck bolts.

As a further improvement of the technical solution of the utility model, the sealing ring is a saddle-shaped sealing ring.

As a further improvement of the technical solution of the utility model, the thread provided on the tee and the short connecting pipe is an arc-shaped taper thread.

Beneficial effects of the utility model: the thread groove type thin-walled stainless steel tee pipe fitting is provided with a tee and a short connection pipe connected by a clamp. The tee is connected with the short pipe, because the clamp can be rotated 360 degrees, so that the installation and connection of the tee pipe is not limited by the angle, direction and space position, which reduces the labor intensity and cost, and improves the installation efficiency and economic benefits.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is a schematic diagram of the overall structure of the utility model embodiment;

Fig. 2 is a schematic diagram of the overall structure of the tee described in the embodiment of the utility model;

Fig. 3 is a schematic diagram of the overall structure of the short connection pipe according to the embodiment of the present invention;

Fig. 4 is a front view of the clamp described in the embodiment of the present invention;

Fig. 5 is a side view of the clip according to the embodiment of the present invention.

detailed description

The idea, specific structure and technical effects of the present utility model will be clearly and completely described below in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, characteristics and effects of the present utility model. Apparently, the described embodiments are only some of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without paying creative efforts, All belong to the protection scope of the utility model.

Referring to Figures 1 to 5, the utility model is a thread groove type thin-walled stainless steel tee pipe fitting, including a tee 1 and a short connecting pipe 2 connected to the tee 1, and the interface between the short connecting pipe 2 and the tee 1 is provided There is a sealing ring 32, and external threads for connection are provided on the outer walls of the other end of the short connection pipe 2 and the other two ends of the tee 1, and the connection between the short connection pipe 2 and the tee 1 is close to the connection between the short connection pipe 2 and the tee 1. Grooves 4 are provided on the outer wall of one end, and the short connection pipe 2 and the tee 1 are connected by clamps 3 in each groove 4 .

The threaded groove type thin-walled stainless steel tee fitting is equipped with a tee 1 and a short pipe 2 connected by a clamp 3. When installing, first connect the tee 1 and the short pipe 2 on the pipeline, and then use the clamp 3 to connect the three The connection 1 is connected with the short pipe 2. Since the clamp 3 can be rotated 360 degrees, the installation and connection of the three-way pipe fittings is not limited by the angle, direction and space position, which reduces labor intensity and cost, and improves installation efficiency and economic benefits.

On the outer wall of the short connection pipe 2, a groove 4 is provided at the end connected with the tee 1, and a groove 4 is provided at the end connected with the short connection pipe 2 on the outer wall of the tee 1, and the two sides of the clamp 3 are respectively provided with There are protruding snap rings 35 , and each snap ring 35 snaps into the two grooves 4 and connects the tee 1 and the short connection pipe 2 . The size of the two grooves 4 is greater than the width of the snap ring 35, so as to leave a margin for installation.

As a preferred embodiment of the present utility model, the clamp 3 includes an upper clamp cover 33 and a lower clamp cover 34, the upper clamp cover 33 and the lower clamp cover 34 are provided with a cavity for placing a sealing ring, and the upper clamp cover 33 and the lower clamp cover The sectional figures of 34 are all U-shaped.

The cross-sectional figures of the upper card cover 33 and the lower card cover 34 are U-shaped, and the U-shaped lips are snap rings 35. Under the closing pressure, the interface between the tee 1 and the short pipe 2 is sealed.

As a preferred embodiment of the present invention, the upper card cover 33 and the lower card cover 34 are connected by bolts.

As a preferred embodiment of the present invention, the bolts are square neck bolts with round heads.

As a preferred embodiment of the present utility model, the sealing ring 32 is a saddle-shaped sealing ring.

It is necessary to ensure that the sealing lip of the saddle seal ring fully contacts the pipe wall.

As a preferred embodiment of the present invention, the threads provided on the tee 1 and the short connection pipe 2 are arc-shaped taper threads.

The characteristic of the circular arc taper thread is that the overall wall thickness of the pipe is cold-rolled to realize the processing of the wall thickness of the thread and the wall thickness of the pipe, without the allowance and waste of thread machining.

This thread groove type thin-wall stainless steel tee pipe fitting is mainly used in thin-wall stainless steel tee pipe fittings, including a tee 1, a saddle seal ring, a clamp 3, a half-round head square neck bolt and a nut assembly, and the tee 1 includes Both ends are rolled with arc-shaped taper threads, and the other end is rolled with a groove 4 with a certain width and depth at a certain distance from the pipe end. This groove 4 is also formed by cold rolling of the overall wall thickness. Roll the arc-shaped taper thread at one end of the short connection pipe 2, and roll out a groove 4 with a certain width and depth at a certain distance from the pipe end at the other end of the short connection pipe 2. The width of the groove 4 is wider than that of the clamp 3. The snap ring is slightly wider to accommodate pipe installation errors and adjustments. This unified wall thickness processing method makes 100% utilization of the pipe thickness, saves and reduces the wall thickness of the stainless steel pipe, and reduces the cost of raw materials and processing. There is an annular snap ring 35 at both ends of the clamp 3, and a cavity is cast in the middle to accommodate the saddle-shaped sealing ring. The clamp 3 is made into a split structure, connected with square neck bolts and nuts for easy installation. The distance from the groove of the tee 1 and the short pipe 2 to the pipe end is such that the saddle seal ring rides on the pipe between their respective grooves and the pipe edge, and its width is slightly wider than the saddle seal ring , to be able to adapt to pipeline installation errors and adjustments.

When installing, first coat the taper thread at one end of the short pipe 2 with the taper thread in the pipeline with liquid raw material, and tighten the connection; then connect the two taper thread ends of the tee 1 with the taper thread in the pipeline Coat the thread with liquid raw material tape, tighten the connection, and adjust the position and angle arbitrarily according to the installation requirements on site; then put the saddle-shaped sealing ring on the groove end of the tee 1 and the groove end of the short pipe 2, and put the clamp 3 is stuck in the groove of the tee 1 and the short connection pipe 2, and tightened with square neck bolts and nuts, so that the tee fittings are conveniently connected in the pipeline. Since the clamp 3 at the groove end can rotate 360 degrees and is not restricted by the angle, the problem of being limited by the angle position when the three-way thread is installed is solved. Compared with the movable flange connection at one end, this pipe fitting only uses one clamp to lock the connection to achieve the ideal purpose, which saves the process of welding a section of flanging short pipe for the movable flange, saving 30% of the cost, and the weight Lighter than the flange, it has the advantages of light weight, low cost, flexible and light installation, good economic efficiency, broad market and easy promotion. This utility model optimizes the combination and improves the design of the previous flange tees, groove tees, and threaded tees. It has simple structure, reliable performance, simplified processing, and reduced cost. The contradiction between flexibility and practicality.

Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art can also make equivalent deformations or replacements without violating the spirit of the present utility model. These equivalent deformations or replacements are all included in the rights of this application. within the bounds of the requirements.

Claims (6)

1. a thread groove formula thin-wall stainless steel tee pipe fitting, it is characterized in that: the nipple (2) comprising threeway (1) and be connected with described threeway (1), the jointing of described nipple (2) and threeway (1) is provided with seal ring (32), the outer wall at the another two ends of described nipple (2) the other end and threeway (1) is equipped with the outside thread for connecting, groove (4) is equipped with near nipple (2) and one end outer wall of the joint of threeway (1) at described nipple (2) and threeway (1), nipple (2) and threeway (1) is connected by snapping in clip (3) in each described groove (4).

2. thread groove formula thin-wall stainless steel tee pipe fitting according to claim 1, it is characterized in that: described clip (3) comprises Shang Kagai (33) and lower Ka Gai (34), be provided with the cavity placing seal ring in described upper Ka Gai (33) and lower Ka Gai (34), the sectional view of described upper Ka Gai (33) and lower Ka Gai (34) is U-shaped.

3. state thread groove formula thin-wall stainless steel tee pipe fitting according to claim 2, it is characterized in that: described upper Ka Gai (33) and lower Ka Gai (34) are bolted.

4. state thread groove formula thin-wall stainless steel tee pipe fitting according to claim 3, it is characterized in that: described bolt adopts round head square neck bolt.

5. thread groove formula thin-wall stainless steel tee pipe fitting according to claim 1, is characterized in that: described seal ring (32) is saddle type seal ring.

6. according to claim 1 thread groove formula thin-wall stainless steel tee pipe fitting, it is characterized in that: the screw thread that described threeway (1) and nipple (2) are provided with is circular arc tooth tapered thread.