CN218441095U

CN218441095U - Pipe fitting connecting structure

Info

Publication number: CN218441095U
Application number: CN202222213232.8U
Authority: CN
Inventors: 朱超雄
Original assignee: Guangdong Rongjun Baoguan Technology Co ltd
Current assignee: Guangdong Rongjun Baoguan Technology Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2023-02-03
Anticipated expiration: 2032-08-22

Abstract

The utility model discloses a pipe connecting structure, which comprises a first pipe body, a second pipe body and a connecting component, wherein the first pipe body is provided with a first pipe orifice, the first pipe orifice is provided with a stepped hole and an inner diameter hole which are arranged in sequence, the diameter of the stepped hole is larger than that of the inner diameter hole, and the inner side surface of the stepped hole is provided with an internal thread; the outer wall of the second pipe body is provided with a protruding part, the protruding part is arranged near the pipe end of the second pipe body, and the protruding part divides the second pipe body into a short pipe part and a long pipe part; coupling assembling establishes the expansion piece and the cover at the short tube portion at the lock nut of long tube portion including the cover, and lock nut has the through-hole of the long tube portion of holding, and the lock nut outer wall has the external screw thread with interior screw-thread fit, and during the connection, short tube portion inserts the inside diameter hole, and the boss compresses tightly the cascaded surface butt of expansion piece and stepped hole, lock nut's terminal surface butt boss and with the interior screw-thread fit locking of stepped hole. The utility model discloses a pipe fitting connection structure, simple to operate seals effectually simultaneously.

Description

Pipe fitting connecting structure

Technical Field

The utility model relates to a pipe fitting field, in particular to pipe fitting connection structure.

Background

In the prior art, the pipeline connection generally adopts threaded connection, wherein an inner thread is hinged on the inner wall of one pipe fitting, a matched outer thread is hinged on the outer peripheral surface of the other pipe fitting, and the pipeline communication is realized through the thread connection of the inner thread and the outer thread. Moreover, when the structure is installed, the whole pipe needs to be installed in a rotating mode, in addition, the sealing adhesive tape needs to be wound for installation, the installation is inconvenient, and the sealing effect is poor after the sealing adhesive tape with long time is damaged.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a pipe fitting connection structure, simple to operate seals effectually simultaneously.

The utility model provides a technical scheme that its technical problem adopted is:

a pipe connecting structure comprises a first pipe body, a second pipe body and a connecting assembly, wherein the first pipe body is provided with a first pipe opening, the first pipe opening is provided with a stepped hole and an inner diameter hole which are sequentially arranged, the diameter of the stepped hole is larger than that of the inner diameter hole, and the inner side surface of the stepped hole is provided with an internal thread; the outer wall of the second pipe body is provided with a convex part which is arranged near the pipe end of the second pipe body, and the convex part divides the second pipe body into a short pipe part and a long pipe part; coupling assembling establishes including the cover the inflation piece and the cover of short tube portion are established the lock nut of long tube portion, lock nut has the through-hole of holding long tube portion, the lock nut outer wall have with interior screw-thread fit's external screw thread, during the connection, short tube portion inserts the internal diameter hole, the boss compresses tightly the inflation piece with the ladder face butt of shoulder hole, lock nut's terminal surface butt the boss and with the interior screw-thread fit locking of shoulder hole.

According to the utility model discloses pipe fitting connection structure has following beneficial effect at least: during the connection, the short pipe portion inserts the inside diameter hole, the bellying compresses tightly the ladder face butt of inflation piece and shoulder hole, lock nut's terminal surface butt bellying and with the interior screw-thread fit locking of shoulder hole, because only need screw up lock nut, also need not the winding sealed sticky tape, therefore simple to operate, in addition because the bellying compresses tightly the ladder face butt of inflation piece to the shoulder hole, lock nut's terminal surface butt bellying, consequently be equivalent to the inflation piece and exert force to lock nut always, make lock nut difficult not hard up, thereby keep good leakproofness.

According to some embodiments of the utility model, the inflation piece is formed for a plurality of sealing washer pile up the connection.

The beneficial results are: this configuration allows the expansion member to have a better expansion force on both ends during installation.

According to some embodiments of the invention, the number of sealing rings is 3.

The beneficial results are: 3 sealing washer are connected and are made the inflation piece have great bulging force when the installation, also are convenient for install simultaneously.

According to some embodiments of the utility model, the bellying is a plurality of follow the bellied bump of second body inner wall to outer wall is constituteed.

The beneficial results are: the convex part adopts the structure, only the convex point is processed on the pipe wall of the second pipe body, and no material is needed to be added, thereby being beneficial to forming and saving material.

According to some embodiments of the present invention, the plurality of protrusions form a convex ring along the outer wall of the second tube.

The beneficial results are: the arrangement can ensure that the end parts of the expansion piece and the locking nut have good abutting and supporting effects.

According to some embodiments of the present invention, the first pipe body further has a second pipe orifice and a third pipe orifice.

The beneficial results are: first body sets up a plurality of mouths of pipe, can be connected with many pipes.

According to some embodiments of the utility model, lock nut includes cooperation portion and tightening portion, cooperation portion is cylindrical and is equipped with the external screw thread, tightening portion's cross-section is regular hexagon.

The beneficial results are: the locking nut is thus provided to facilitate installation.

According to some embodiments of the invention, the material of the expansion element is epdm.

The beneficial results are: the expansion piece made of ethylene propylene diene monomer rubber has good elasticity and aging resistance, and is beneficial to keeping the pipe fitting in a sealing state for a long time.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a sectional view of fig. 1 after installation.

Reference numerals: the pipe comprises a first pipe body 100, a first pipe opening 110, a stepped hole 120, an inner diameter hole 130, a second pipe body 140, a protruding part 150, a short pipe part 160, a long pipe part 170, an expansion piece 180, a locking nut 190, a second pipe opening 200, a third pipe opening 210, a matching part 220 and a tightening part 230.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element 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 invention.

In the description of the present invention, a plurality of meanings are one or more, a plurality of meanings are two or more, and the terms greater than, smaller than, exceeding, etc. are understood as excluding the number, and the terms greater than, lower than, within, etc. are understood as including the number. If there is a description of first and second for the purpose of distinguishing technical features only, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

A pipe connecting structure will be described in detail in a specific embodiment with reference to fig. 1 to 2. It is to be understood that the following description is illustrative only and is not intended as a specific limitation on the invention.

As shown in fig. 1 to 2, a pipe connection structure includes a first pipe body 100, a second pipe body 140, and a connection assembly.

The first tube 100 has a first tube opening 110, the first tube opening 110 has a stepped hole 120 and an inner diameter hole 130 which are sequentially arranged, the diameter of the stepped hole 120 is larger than that of the inner diameter hole 130, and the inner side surface of the stepped hole 120 has internal threads; the outer wall of the second tube 140 has a protruding part 150, the protruding part 150 is arranged near the tube end of the second tube 140, and the protruding part 150 divides the second tube 140 into a short tube part 160 and a long tube part 1; coupling assembling is including the inflation piece 180 of cover establishing at quarter 160 and the lock nut 190 of cover establishing at quarter 170, lock nut 190 has the through-hole of holding quarter 170, lock nut 190 outer wall have with internal thread fit's external screw thread, during the connection, quarter 160 inserts inside diameter hole 130, boss 150 compresses tightly inflation piece 180 and the ladder face butt of shoulder 120, lock nut 190's terminal surface butt boss 150 and with the internal thread fit locking of shoulder 120.

During connection, stub pipe portion 160 inserts inner diameter hole 130, bellying 150 compresses tightly the cascaded surface butt of expanding element 180 with stepped hole 120, lock nut 190's terminal surface butt bellying 150 and with the interior screw-thread fit locking of stepped hole 120, because only need tighten lock nut 190, also need not the winding sealing adhesive tape, therefore simple to operate, in addition because bellying 150 compresses tightly the cascaded surface butt of expanding element 180 to stepped hole 120, lock nut 190's terminal surface butt bellying 150, consequently be equivalent to expanding element 180 and exert force to lock nut 190 always, make lock nut 190 difficult not hard up, thereby keep good leakproofness.

As shown in fig. 2, the expansion member 180 is formed by stacking and connecting a plurality of sealing rings. This configuration allows the expansion member 180 to have a better expansion force against both ends during installation.

Specifically, the number of seal rings was 3. The connection of the 3 sealing rings enables the expansion piece 180 to have larger expansion force during installation, and is convenient to install.

The protrusion 150 is formed by a plurality of protrusions protruding from the inner wall to the outer wall of the second tube 140. The convex part 150 with the structure only needs to process salient points on the pipe wall of the second pipe body 140 without adding materials, thereby being beneficial to forming and saving materials.

Furthermore, a plurality of protrusions form a convex ring along the outer wall of the second tube 140. This arrangement ensures a good abutting support against the ends of the expansion member 180 and the lock nut 190.

As shown in fig. 1 and 2, the first tube 100 further has a second nozzle 200 and a third nozzle 210. The first pipe 100 has a plurality of openings, which can be connected to a plurality of pipes.

As shown in fig. 1 and 2, the lock nut 190 includes a fitting portion 220 and a tightening portion 230, the fitting portion 220 being cylindrical and provided with an external thread, and the tightening portion 230 having a cross-section of a regular hexagon. The lock nut 190 is thus provided to facilitate installation.

It is worth mentioning that the material of the expansion member 180 is epdm. The expansion piece 180 made of ethylene propylene diene monomer rubber has good elasticity and aging resistance, and is beneficial to keeping the pipe fitting in a sealing state for a long time.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A pipe connecting structure, comprising:

the pipe comprises a first pipe body (100) and a second pipe body (110), wherein the first pipe body (110) is provided with a stepped hole (120) and an inner diameter hole (130) which are sequentially arranged, the diameter of the stepped hole (120) is larger than that of the inner diameter hole (130), and the inner side surface of the stepped hole (120) is provided with an internal thread;

a second tube body (140) having a raised portion (150) on an outer wall, the raised portion (150) being disposed near a tube end of the second tube body (140), the raised portion (150) dividing the second tube body (140) into a short tube portion (160) and a long tube portion (170);

coupling assembling establishes including the cover expansion piece (180) and the cover of short tube portion (160) are established lock nut (190) of long tube portion (170), lock nut (190) have the through-hole of the long tube portion of holding (170), lock nut (190) outer wall have with interior screw-thread fit's external screw thread, during the connection, short tube portion (160) insert interior footpath hole (130), bellying (150) compress tightly expansion piece (180) with the stepped surface butt of shoulder hole (120), the terminal surface butt of lock nut (190) bellying (150) and with interior screw-thread fit locking of shoulder hole (120).

2. A pipe connecting structure as claimed in claim 1, wherein said swelling member (180) is formed by stacking a plurality of packing rings.

3. A pipe connecting structure as claimed in claim 2, wherein the number of said packing rings is 3.

4. A pipe connecting structure as claimed in claim 1, wherein said projection (150) is formed of a plurality of protrusions protruding from an inner wall to an outer wall of said second pipe body (140).

5. A pipe connection according to claim 4, wherein the plurality of projections form a collar along the outer wall of the second body (140).

6. A pipe connecting structure according to claim 1, wherein said first pipe body (100) further has a second nozzle (200) and a third nozzle (210).

7. A pipe connecting structure according to claim 1, wherein said lock nut (190) comprises a fitting portion (220) and a tightening portion (230), said fitting portion (220) being cylindrical and provided with an external thread, said tightening portion (230) being regular hexagonal in cross section.

8. A pipe connecting structure as claimed in claim 1, wherein said swelling member (180) is made of epdm.