CN210266246U

CN210266246U - Overlap welding screw-in flat shoulder threaded joint

Info

Publication number: CN210266246U
Application number: CN201921312452.8U
Authority: CN
Inventors: 祁道利; 周玲
Original assignee: Funing Zhongzi Ship Accessories Co Ltd
Current assignee: Funing Zhongzi Ship Accessories Co Ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-04-07
Anticipated expiration: 2029-08-14

Abstract

The utility model discloses a lap welding screw-in flat shoulder screwed joint, including the outer tube, the outer surface of the outer tube is provided with a first fixed block, one side of the first fixed block is provided with a second fixed block, one side of the outer tube is provided with a first interface, the other side of the outer tube is provided with a second interface, one side of the outer tube is provided with an inner tube, the inner wall of the inner tube is provided with screw threads, a telescopic tube is arranged inside the inner tube, a connecting hole is arranged inside the inner tube, the lower end of the outer tube is provided with a sliding groove, the middle end of the outer tube is provided with a connecting hole, the lap welding screw-in flat shoulder screwed joint can enable the joint to freely adjust the length by arranging the telescopic tube and the sliding groove inside the outer tube so as to adapt to the; set up the dog in the middle section of connecting the hole, can relatively fixed treat the lap welding article to make the welded more even, firm of two articles, will bring better use prospect.

Description

Overlap welding screw-in flat shoulder threaded joint

Technical Field

The utility model relates to a screwed joint field, in particular to lap welding screw in flat shoulder screwed joint.

Background

The threaded joint is a pipeline connecting piece with threads, is the most common pipe fitting in industry and life, enables the connection of pipelines to be simpler, is easier to disassemble and replace, and greatly saves the cost of pipeline connection. Threaded joints generally include threaded elbows, threaded tees, threaded unions, threaded caps, threaded ferrules, threaded reducer, threaded plugs, threaded male threads, and complementary cores. Comprising a sealing ring, a coupling part and a union nut for coupling pipes, whereby the sealing ring is designed as a ring cutter with one or more cutting edges. The cutting ring can be inserted into a bore of the connection part, said bore having a conical surface, by screwing the union nut onto the connection part. The outside of the sealing ring has an annular reinforcement on the nut side. When fully assembled, the annular reinforcing member has an axial length just as to enable the transfer element provided on said annular face to transfer its own negative structure or itself to the end face of the connecting portion. The transfer member has a three-dimensional shape of a contour, a negative image of which can be transferred onto the surface of the connecting portion. In a manner similar to the stamper, the negative image is imprinted onto the surface of the connecting portion by the pressure applied by the assembler. Common screwed joint can only weld for the specific length of the welding pipe of specific model, and the welding effect can be influenced to the welding pipe input length inequality at both ends, therefore we have proposed this kind of overlap welding screw in flat shoulder screwed joint.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a lap-welded screw-in flat-shoulder threaded joint which can effectively solve the problems of the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a lap welding screw in tie-shoulder screwed joint, includes the outer tube, the outer tube surface is provided with first fixed block, first fixed block one side is provided with the second fixed block, outer tube one side is provided with first interface, the outer tube opposite side is provided with the second interface, outer tube one side is provided with the inner tube, inner tube inner wall sets up the screw thread, the inside flexible pipe that is provided with of inner tube, the inside hole that connects that is provided with of inner tube, the outer tube lower extreme is provided with the sliding tray, the outer tube middle-end is provided with the connector, it is provided with the dog.

Preferably, the outer pipe, the inner pipe and the telescopic pipe are made of carbon steel, and the size of the outer pipe is larger than that of the inner pipe and the telescopic pipe.

Preferably, the first fixed block and the second fixed block have the same size, the inner diameter of the first fixed block and the inner diameter of the second fixed block are matched with the outer diameter of the outer tube, and the first fixed block and the second fixed block are symmetrical about the center line of the outer tube.

Preferably, the first interface and the second interface are the same in size, and are symmetrical with respect to the outer tube.

Preferably, the inner pipe penetrates through the outer pipe, and the telescopic pipes are arranged in the outer pipe in parallel.

Preferably, the sliding groove is fixedly welded with the inner part of the outer pipe, and the sliding groove is horizontally arranged at the upper end of the telescopic pipe.

Preferably, the number of the stop dogs is two, the two stop dogs are vertically arranged in the connecting port, the stop dogs are fixedly welded on the inner wall of the inner pipe, and the two stop dogs are symmetrical relative to the outer pipe.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. according to the lap welding screw-in flat shoulder threaded joint, the extension pipe and the sliding groove are arranged inside the outer pipe, so that the joint can freely adjust the length to adapt to lap welding of objects with different lengths, and the lap welding screw-in flat shoulder threaded joint has good universality.

2. The lap weld is screwed into the flat shoulder threaded joint, passing therethrough. Connect the hole middle section and set up the dog, can the relatively fixed article of waiting to lap weld to make the welded more even, firm of two article.

Drawings

FIG. 1 is a schematic view of the overall structure of a lap-welded screwed flat-shoulder threaded joint of the present invention;

FIG. 2 is a view of the structure of a telescopic tube for lap welding and screwing into a flat shoulder threaded joint of the present invention;

fig. 3 is an internal overall structure diagram of the lap-welded screw-in flat-shoulder threaded joint of the present invention.

In the figure: 1. an outer tube; 2. a first fixed block; 3. a second fixed block; 4. a first interface; 5. a second interface; 6. a thread; 7. an inner tube; 8. a telescopic pipe; 9. connecting holes; 10. a sliding groove; 11. an outer pipe connecting port; 12. and a stop block.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-3, a lap welding screw-in flat shoulder threaded joint comprises an outer pipe 1, a first fixing block 2 is arranged on the outer surface of the outer pipe 1, a second fixing block 3 is arranged on one side of the first fixing block 2, a first interface 4 is arranged on one side of the outer pipe 1, a second interface 5 is arranged on the other side of the outer pipe 1, an inner pipe 7 is arranged on one side of the outer pipe 1, threads 6 are arranged on the inner wall of the inner pipe 7, a telescopic pipe 8 is arranged inside the inner pipe 7, a connecting hole 9 is formed inside the inner pipe 7, a sliding groove 10 is arranged at the lower end of the outer pipe 1, a connecting.

The outer pipe 1, the inner pipe 7 and the telescopic pipe 8 are made of carbon steel, and are high-temperature resistant, firm and durable, the size of the outer pipe 1 is larger than the sizes of the inner pipe 7 and the telescopic pipe 8, and the inner pipe 7 is embedded in the outer pipe 1; the first fixing block 2 and the second fixing block 3 are the same in size, the inner diameter of the first fixing block 2 and the inner diameter of the second fixing block 3 are matched with the outer diameter of the outer pipe 1, and the first fixing block 2 and the second fixing block 3 are symmetrical relative to the center line of the outer pipe 1 and are used for fixing a threaded joint; the first connector 4 and the second connector 5 are the same in size, and the first connector 4 and the second connector 5 are symmetrical relative to the outer pipe 1 and used for placing a lap welding object; the inner pipe 7 penetrates through the outer pipe 1, and the telescopic pipe 8 is arranged in the outer pipe 1 in parallel and used for freely adjusting the length of a joint pipe body to adapt to welding objects with different lengths; the sliding groove 10 is fixedly welded in the outer pipe 1, and the sliding groove 10 is horizontally arranged at the upper end of the telescopic pipe 8 and used for sliding and fixing the outer pipe 1, so that the length of a joint pipe body can be freely adjusted to adapt to welding objects with different lengths; the quantity of dog 12 is two sets of, and two sets of dog 12 are vertical to be established inside connector 11, and dog 12 fixed welding is in 7 inner walls of inner tube, and two sets of dog 12 are about 1 symmetry of outer tube, can relatively fixed wait to lap weld the article to make the welded more even, firm of both ends article.

It should be noted that, the utility model relates to a lap welding screw-in flat shoulder screwed joint, compare with the conventional lap welding screw-in flat shoulder screwed joint of the same model, this kind of lap welding screw-in flat shoulder screwed joint creatively sets up flexible pipe 8 and sliding tray 10 in outer tube 1, can stimulate outer tube 1 to make outer tube 1 slide in sliding tray 10 when needing, and fixed, flexible pipe 8 meets with inner tube 7 at this moment, has lengthened inner tube 7 and has lengthened the screwed joint, therefore flexible pipe 8 and sliding tray 10 can make the joint freely adjust the length, in order to adapt to the lap welding of the article of different length, have better commonality; in addition, the stop block 12 is arranged in the middle section of the connecting hole 9 of the lap welding screw-in flat shoulder threaded joint, a welded pipe is to be respectively input from the first interface 4 and the second interface 5, the welded pipe enters the connecting hole 9 through the threads 6, welding is carried out until the stop block 12 is fixed, and objects to be lap welded can be fixed relatively, so that the input length of welding of the two objects is equal, and lap welding is more uniform, firm and practical.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a lap welding screw in flat shoulder screwed joint, includes outer tube (1), its characterized in that: the outer tube (1) surface is provided with first fixed block (2), first fixed block (2) one side is provided with second fixed block (3), outer tube (1) one side is provided with first interface (4), outer tube (1) opposite side is provided with second interface (5), outer tube (1) one side is provided with inner tube (7), inner tube (7) inner wall sets up screw thread (6), inner tube (7) inside is provided with flexible pipe (8), inner tube (7) inside is provided with and connects hole (9), outer tube (1) lower extreme is provided with sliding tray (10), outer tube (1) middle-end is provided with connector (11), it is provided with dog (12) to connect hole (9) middle section.

2. A lap-welded, screw-in, flat-shoulder threaded joint as set forth in claim 1 wherein: the outer pipe (1), the inner pipe (7) and the telescopic pipe (8) are made of carbon steel, and the size of the outer pipe (1) is larger than that of the inner pipe (7) and the telescopic pipe (8).

3. A lap-welded, screw-in, flat-shoulder threaded joint as set forth in claim 1 wherein: the size of the first fixed block (2) is the same as that of the second fixed block (3), the inner diameter of the first fixed block (2) is matched with that of the second fixed block (3) and the outer diameter of the outer pipe (1), and the first fixed block (2) and the second fixed block (3) are symmetrical about the center line of the outer pipe (1).

4. A lap-welded, screw-in, flat-shoulder threaded joint as set forth in claim 1 wherein: the first connector (4) and the second connector (5) are the same in size, and the first connector (4) and the second connector (5) are symmetrical relative to the outer pipe (1).

5. A lap-welded, screw-in, flat-shoulder threaded joint as set forth in claim 1 wherein: the inner pipe (7) penetrates through the outer pipe (1), and the telescopic pipes (8) are arranged in the outer pipe (1) in parallel.

6. A lap-welded, screw-in, flat-shoulder threaded joint as set forth in claim 1 wherein: the sliding groove (10) is fixedly welded with the inner part of the outer pipe (1), and the sliding groove (10) is horizontally arranged at the upper end of the telescopic pipe (8).

7. A lap-welded, screw-in, flat-shoulder threaded joint as set forth in claim 1 wherein: the number of the stop blocks (12) is two, the two stop blocks (12) are vertically arranged inside the connecting port (11), the stop blocks (12) are fixedly welded on the inner wall of the inner pipe (7), and the two stop blocks (12) are symmetrical relative to the outer pipe (1).