CN216768637U

CN216768637U - Expansion type connecting structure of pipe fitting and loose joint

Info

Publication number: CN216768637U
Application number: CN202220207875.9U
Authority: CN
Inventors: 牟来满
Original assignee: JIAXING IDC PLUMBING & HEATING TECHNOLOGY Ltd
Current assignee: JIAXING IDC PLUMBING & HEATING TECHNOLOGY Ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-06-17
Anticipated expiration: 2032-01-24

Abstract

The utility model discloses an expansion type connecting structure of a pipe fitting and a loose joint, which comprises a first pipe body and the loose joint, wherein the loose joint is sleeved outside one end of the first pipe body; when the first pipe body is connected with the loose joint, only one end of the first pipe body penetrates through the loose joint and expands the pipe so that the annular protruding part used for being embedded with the annular clamping groove in the inner wall of the loose joint is formed in the side wall of the first pipe body, namely, the clamping spring does not need to be matched and clamped on the first pipe body, so that the material cost when the first pipe body is connected with the loose joint can be reduced, and the structural complexity after the first pipe body is connected with the loose joint can be simplified.

Description

Expansion type connecting structure of pipe fitting and loose joint

Technical Field

The utility model relates to the technical field of connecting structures of pipe fittings and loose joints, in particular to an expansion type connecting structure of a pipe fitting and a loose joint.

Background

When the pipe body on the market is connected with the loose joint at present, the pipe body and the loose joint are prevented from falling off by virtue of the snap spring, namely, an annular clamping groove is arranged on the outer wall of the end part of the pipe body, after the end part of the pipe body passes through the loose joint, the snap spring is required to be matched and clamped on the annular clamping groove, after the snap spring is matched and clamped on the annular clamping groove, when the loose joint is about to be separated from the pipe body, the loose joint can abut against the snap spring to avoid the situation that the loose joint is separated from the pipe body, in addition, after the loose joint is in threaded connection with another pipe body, the pipe body which is in matched and clamped with the snap spring can be fastened to another pipe body under the situation that the loose joint abuts against the snap spring, however, when the pipe body on the market is assembled with the loose joint at present, the snap spring is required to be matched and clamped on the annular clamping groove on the outer wall of the pipe body, namely, an additional snap spring is required to be additionally arranged, and in this way, not only has the defect of high part cost, but also has the defect of complex connecting structure of the pipe body and the loose joint.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides an expansion type connecting structure of a pipe fitting and a loose joint, which can reduce the material cost when a first pipe body is connected with the loose joint and simplify the structural complexity after the first pipe body is connected with the loose joint.

The utility model discloses an expansion type connecting structure of a pipe fitting and a loose joint, which comprises a first pipe body and the loose joint, wherein the loose joint is sleeved outside one end of the first pipe body, an annular clamping groove is formed in the inner wall of the loose joint, an annular protruding part is formed on the side wall of one end of the first pipe body after pipe expansion through a pipe expansion mechanism, the outer wall of the annular protruding part is embedded with the annular clamping groove, and the loose joint is rotatably connected with the first pipe body.

The utility model relates to an expansion type connecting structure of a pipe fitting and a loose joint, which comprises a first pipe body, a second pipe body, a sealing ring, a first pipe body, a second pipe body, a first sealing ring, a second sealing ring, a first sealing ring and a second sealing ring, wherein one end of the first pipe body is inserted into one end of the second pipe body; after adopting this kind of structure, insert the one end of second body in the one end of first body and after loose joint connects with the second body and is connected, loose joint connects can compress tightly the sealing washer on the annular step that is located the second body, and at this moment, the sealing washer can produce deformation and all hug closely sealedly with annular step and first body, so, first body and second body can reliably and conveniently realize sealing connection.

The utility model relates to an expansion type connecting structure of a pipe fitting and a loose joint, wherein an inner thread is arranged on the inner wall of an annular step, an outer thread is arranged on the outer wall of the loose joint, the loose joint is inserted into one end of a second pipe body, and the outer thread is in threaded connection with the inner thread; by adopting the structure, the loose joint can be reliably and conveniently connected with the second pipe body.

The utility model relates to an expansion type connecting structure of a pipe fitting and a loose joint, wherein a lug boss in a regular hexagon shape is arranged on the outer wall of the loose joint and is used for being matched with a wrench so as to facilitate the wrench to rotate the loose joint; after the boss in the shape of regular hexagon is arranged on the outer wall of the loose joint, the boss can be matched with the wrench, so that the wrench can conveniently screw the loose joint to enable the loose joint to be in threaded connection with the second pipe body.

The utility model relates to an expansion type connecting structure of a pipe fitting and a loose joint, wherein an annular guide surface is arranged on the inner wall of one end of the loose joint and is used for being matched with the outer wall of a first pipe body for guiding so as to facilitate the first pipe body to pass through the loose joint; after the annular guide surface is arranged on the inner wall of one end of the loose joint, when the first pipe body is connected with the loose joint, the outer wall of the first pipe body can be matched with the annular guide surface to guide so that the first pipe body can penetrate through the loose joint.

The utility model relates to an expansion type connecting structure of a pipe fitting and a loose joint, wherein a first pipe body and the loose joint are both made of copper materials; after the loose joint is made of the copper material, the copper material has the advantage of soft texture, so that an annular clamping groove is conveniently formed on the inner wall of the loose joint; in a similar way, the first pipe body adopts the copper material support ring, and because the copper material has the soft advantage of texture, so, be convenient for carry out the expand tube so that form annular bulge on the lateral wall of first pipe body to first pipe body.

When the first pipe body is connected with the loose joint, only one end of the first pipe body penetrates through the loose joint and expands the first pipe body to form the annular protruding portion which is used for being embedded with the annular clamping groove in the inner wall of the loose joint on the side wall of the first pipe body, namely the clamping spring does not need to be matched and clamped on the first pipe body, so that the material cost of the first pipe body when the first pipe body is connected with the loose joint can be reduced, and the structural complexity of the first pipe body after being connected with the loose joint can be simplified.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic cross-sectional view of a first tubular body coupled to a loose joint;

fig. 2 is a schematic cross-sectional structural view of the first pipe body and the second pipe body after being hermetically connected through the loose joint and the sealing ring.

Detailed Description

In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the utility model. That is, in some embodiments of the utility model, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The utility model discloses an expansion type connecting structure of a pipe fitting and a loose joint, which comprises a first pipe body 1 and a loose joint 2, wherein the loose joint 2 is sleeved outside one end of the first pipe body 1, an annular clamping groove 21 is formed in the inner wall of the loose joint 2, an annular protruding part 11 is formed on the side wall of one end of the first pipe body 1 after pipe expansion through a pipe expansion mechanism, the outer wall of the annular protruding part 11 is embedded with the annular clamping groove 21, and the loose joint 2 is rotatably connected with the first pipe body 1.

The expansion type connecting structure of the pipe fitting and the loose joint further comprises a second pipe body 3, one end of the first pipe body 1 is inserted into one end of the second pipe body 3, an annular step 31 is arranged on the inner wall of one end of the second pipe body 3, a sealing ring 4 is sleeved outside one end of the first pipe body 1, the loose joint 2 is connected with one end of the second pipe body 3, the loose joint 2 is used for pressing the sealing ring 4 on the annular step 31, and the sealing ring 4, the annular step 31 and the first pipe body 1 are tightly attached and sealed; after adopting this kind of structure, insert the one end of second body in the one end of first body and after loose joint connects with the second body and is connected, loose joint connects can compress tightly the sealing washer on the annular step that is located the second body, and at this moment, the sealing washer can produce deformation and all hug closely sealedly with annular step and first body, so, first body and second body can reliably and conveniently realize sealing connection.

An internal thread 32 is arranged on the inner wall of the annular step 31, an external thread 22 is arranged on the outer wall of the loose joint 2, the loose joint 2 is inserted into one end of the second pipe body 3, and the external thread 22 is in threaded connection with the internal thread 32; by adopting the structure, the loose joint can be reliably and conveniently connected with the second pipe body.

A lug boss 23 in a regular hexagon shape is arranged on the outer wall of the loose joint connector 2, and the lug boss 23 is used for being matched with a wrench so that the wrench can rotate the loose joint connector 2; after the boss in the shape of regular hexagon is arranged on the outer wall of the loose joint, the boss can be matched with the wrench, so that the wrench can conveniently screw the loose joint to enable the loose joint to be in threaded connection with the second pipe body.

An annular guide surface 24 is arranged on the inner wall of one end of the loose joint 2, and the annular guide surface 24 is used for being matched with the outer wall of the first pipe body 1 for guiding so as to facilitate the first pipe body 1 to penetrate through the loose joint 2; after the annular guide surface is arranged on the inner wall of one end of the loose joint, when the first pipe body is connected with the loose joint, the outer wall of the first pipe body can be matched with the annular guide surface to guide so that the first pipe body can penetrate through the loose joint.

The first pipe body 1 and the loose joint 2 are both made of copper materials; after the loose joint is made of the copper material, the copper material has the advantage of soft texture, so that an annular clamping groove is conveniently formed on the inner wall of the loose joint; in a similar way, the first pipe body adopts the copper material support ring, and because the copper material has the soft advantage of texture, so, be convenient for carry out the expand tube so that form annular bulge on the lateral wall of first pipe body to first pipe body.

When the first pipe body is connected with the loose joint, one end of the first pipe body penetrates through the loose joint, then the pipe expanding end of the pipe expanding mechanism is inserted into one end of the first pipe body, then the pipe expanding mechanism is driven to enable the pipe expanding end of the pipe expanding mechanism to expand the first pipe body, after the first pipe body is expanded, an annular protruding portion can be formed on the side wall of the first pipe body, and the annular protruding portion can be embedded with an annular clamping groove in the inner wall of the loose joint structure, so that the first pipe body and the loose joint are connected; when the first pipe body needs to be connected with the second pipe body, the sealing ring is embedded on the annular step of the second pipe body, and the loose joint connector is screwed to the second pipe body.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a pipe fitting and loose joint connect expand compact form connection structure, includes first body (1) and loose joint (2), the outside of the one end of first body (1), its characterized in that are established to loose joint (2) cover: be provided with ring groove (21) on the inner wall of loose joint (2), the lateral wall of the one end of first body (1) is formed with annular bulge (11) after the expand tube through the expand tube mechanism expand tube, the outer wall and ring groove (21) gomphosis of annular bulge (11), loose joint (2) are connected with first body (1) rotation.

2. The expanding connection structure of the pipe fitting and the loose joint as claimed in claim 1, further comprising a second pipe body (3), wherein one end of the first pipe body (1) is inserted into one end of the second pipe body (3), an annular step (31) is arranged on an inner wall of one end of the second pipe body (3), a sealing ring (4) is sleeved outside one end of the first pipe body (1), the loose joint (2) is connected with one end of the second pipe body (3), the loose joint (2) is used for pressing the sealing ring (4) onto the annular step (31), and the sealing ring (4) is tightly sealed with the annular step (31) and the first pipe body (1).

3. The expanding connection of a pipe to a union according to claim 2, characterized in that an internal thread (32) is provided on the inner wall of the annular step (31), an external thread (22) is provided on the outer wall of the union (2), the union (2) is inserted in one end of the second pipe body (3) and the external thread (22) is screwed with the internal thread (32).

4. The expanding connection of a pipe to a union according to claim 3, characterized in that the outer wall of the union (2) is provided with a hexagonal boss (23), said boss (23) being adapted to cooperate with a wrench to facilitate the rotation of the union (2) by the wrench.

5. The expanding connection of a pipe to a union according to claim 1, characterized in that the inner wall of one end of the union (2) is provided with an annular guide surface (24), and the annular guide surface (24) is used for guiding in cooperation with the outer wall of the first pipe body (1) to facilitate the first pipe body (1) to pass through the union (2).

6. The expanding connection of a pipe to a union according to claim 1, characterised in that the first pipe body (1) and the union (2) are made of copper material.