Pipeline connecting piece

Abstract

The utility model provides a pipeline connecting piece which comprises a pipe fitting body, a clamping ring and a locking structure, the locking structure is used for tightening the clamping ring so as to enable a pipe to be fastened between the pipe fitting body and the clamping ring, the clamping ring is provided with an opening enabling the clamping ring to form a non-closed-loop structure, and the clamping ring is provided with a locking structure. The outer surfaces, located on the two sides of the opening, of the clamping ring are provided with a stopping boss and a bolt base which are opposite, the bolt base is in threaded connection with a first bolt, and the screw part of the first bolt faces the stopping boss. The caliber of the clamping ring can be easily expanded by rotating the first bolt to push the stop boss, so that the problems of difficult pipe insertion and repeated alignment caused by difficult adjustment of the caliber of the clamping ring are solved, the installation time is greatly saved, and the assembly efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to building water supply pipeline technical field, especially pipeline connecting piece. BACKGROUND

[0002] Building water supply pipeline has more connecting modes, such as hot melt connection is adopted to PPR pipe etc., red copper pipe adopts welding, and mechanical connection mode is mostly adopted to aluminium plastic pipe, polyethylene etc. flexible pipe. Among them, the common mechanical connection mode has snap ring connection, and the structure involved usually includes pipe fitting main part, snap ring, bolt and first nut, and the connecting operation can be completed through spanner etc. tool, however, in actual operation process, because the hardness of snap ring is big, it is difficult to manually expand its caliber, leading to that water pipe is difficult to align and insert, the operation process is time-consuming and laborious, and the assembly efficiency is reduced. SUMMARY

[0003] Based on this, the utility model aims at providing a kind of pipeline connecting piece, to solve the technical problem mentioned in the above background art.

[0004] The utility model provides a kind of pipeline connecting piece, including pipe fitting main part, snap ring and locking structure, the locking structure is used to shrink the snap ring, so that pipe material is fastened between the pipe fitting main part and the snap ring, the snap ring has the opening that it constitutes non closed loop structure, the outer surface of the snap ring located at the both sides of the opening is equipped with opposite stop boss and bolt seat, first bolt is connected on the bolt seat, and the screw rod portion of the first bolt is set towards the stop boss.

[0005] Further, the pipeline connecting piece, wherein the locking structure includes mounting seat, second bolt and first nut, the number of mounting seat is two, two mounting seat is equipped on the outer surface of the snap ring located at the both sides of the opening, the mounting seat is equipped with perforation, the second bolt is connected first nut by passing the perforation of two mounting seat.

[0006] Further, the pipeline connecting piece, wherein the side of the mounting seat is outwardly protruding and formed with a limiting boss, and the limiting boss stops the edge of the first nut.

[0007] Further, the pipeline connecting piece, wherein a gasket is arranged between the mounting seat and the first nut.

[0008] Further, the pipeline connecting piece, wherein the pipe fitting main part includes a pipe insertion portion and a head portion arranged at one end of the pipe insertion portion, a movable nut is rotatably arranged at a position close to the head portion of the pipe insertion portion, and a sealing gasket is arranged on an end surface of the head portion.

[0009] Further, the pipe connecting piece, wherein the outer surface of the insertion pipe portion is sequentially provided with a light axis section, a threaded section and a corrugated section in the insertion direction, the threaded section is threadedly connected with a second nut, the inner wall of the clamping ring close to the port is provided with a limiting convex rib for limiting the second nut.

[0010] Further, the pipe connecting piece, wherein the inner wall of the clamping ring is provided with a clamping convex rib corresponding to the corrugated section.

[0011] Further, the pipe connecting piece, wherein the corrugated section is sleeved with a plurality of sealing rings.

[0012] Compared with the prior art, the pipe connecting piece has the following beneficial effects:

[0013] By rotating the first bolt to push the limiting convex rib, the caliber of the clamping ring can be easily enlarged, the problems of difficult insertion of the pipe and repeated alignment due to difficult adjustment of the caliber of the clamping ring are avoided, the installation time is greatly saved, and the assembly efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a front view of the pipe connecting piece in the utility model;

[0015] Figure 2 is a rear view of the pipe connecting piece in the utility model;

[0016] Figure 3 is a top view of the pipe connecting piece in the utility model;

[0017] Figure 4 is a sectional view of the pipe connecting piece in the utility model;

[0018] MAIN ELEMENT SYMBOL EXPLANATION:

[0019] 10, pipe body; 11, insertion pipe portion; 12, end portion; 13, movable nut; 14, sealing gasket; 111, light axis section; 112, threaded section; 113, corrugated section; 114, second nut; 115, limiting convex rib; 20, clamping ring; 31, mounting seat; 32, second bolt; 33, first nut; 34, gasket; 41, limiting convex rib; 42, bolt seat; 43, first bolt; 50, limiting convex rib; 60, clamping convex rib; 70, sealing ring; 100, pipe.

[0020] The following specific embodiments will further illustrate the utility model in combination with the above drawings. DETAILED DESCRIPTION

[0021] For the convenience of understanding the utility model, the utility model will be described more fully below with reference to the relevant drawings. The drawings show several embodiments of the utility model. However, the utility model can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] Please refer to Figures 1 to 4 The pipe connecting piece in the utility model, including pipe body 10, snap ring 20 and locking structure, the locking structure is used for tightening the snap ring 20, so that the pipe 100 is fastened between the pipe body 10 and the snap ring 20, the snap ring 20 has the opening that it constitutes the non-closed loop structure, the outer surface of the snap ring 20 located on both sides of the opening is equipped with opposite stop boss 41 and bolt seat 42, the first bolt 43 is screw-connected on the bolt seat 42, and the screw rod portion of the first bolt 43 is arranged towards the stop boss 41.

[0025] By rotating the first bolt 43 and pushing the stop boss 41, the caliber of the snap ring 20 can be easily enlarged, avoiding the problems of difficult insertion of the pipe 100 and repeated alignment due to the difficulty in adjusting the caliber of the snap ring 20, greatly saving the installation time and improving the assembly efficiency.

[0026] Please refer to Figure 3 The locking structure includes mounting seat 31, second bolt 32 and first nut 33, the number of mounting seat 31 is two, two mounting seat 31 is equipped on the outer surface of the snap ring 20 located on both sides of the opening, the mounting seat 31 is equipped with a through hole, and the second bolt 32 is connected with the first nut 33 by penetrating the through holes of two mounting seat 31.

[0027] In practical application, when connecting the pipe 100, first, the first bolt 43 is rotated in positive direction by using the hexagonal wrench, the caliber of the snap ring 20 is expanded by pushing the stop boss 41 by the first bolt 43, then the pipe 100 is inserted from one end of the snap ring 20, the pipe body 10 is inserted into the pipe cavity of the pipe 100 from the other end of the snap ring 20, after adjusting the position, the first bolt 43 is rotated in reverse direction, the first bolt 43 is separated from the stop boss 41, finally, the second bolt 32 is tightened, the two mounting seats 31 are relatively close to each other to compress the snap ring 20, until the pipe 100 is fastened between the snap ring 20 and the pipe body 10, that is, the installation is completed.

[0028] Further, referring to Figure 2 , one side of the mounting seat 31 protrudes outward to form a limiting boss 50, the limiting boss 50 limits the edge of the first nut 33. Therefore, during the rotation of the second bolt 32, the first nut 33 can be relatively stationary under the blocking action of the limiting boss 50, without the need for additional tools to fix the first nut 33, the installation and removal of the snap ring 20 can be realized only by using a hexagonal wrench, and the assembly is more simple and convenient.

[0029] Further, referring to Figure 3 , the gasket 34 is provided between the mounting seat 31 and the first nut 33, specifically, the gasket 34 is a copper gasket, which can be pressed between the mounting seat 31 and the first nut 33, thereby being self-adaptively deformed according to the shape of the contact surface to fill the possible small gaps and uneven places between them. This makes the contact between the first nut 33 and the mounting seat 31 more uniform and close, effectively avoiding the problem of excessive local stress or uneven distribution of fastening force caused by uneven contact surface, thereby enhancing the overall fastening effect and ensuring that the connection part will not easily loosen during long-term use.

[0030] Referring to Figure 4 , the pipe body 10 includes a pipe insertion portion 11 and an end portion 12 provided at one end of the pipe insertion portion 11, the pipe insertion portion 11 is rotatably provided with a movable nut 13 near the end portion 12, and the end face of the end portion 12 is provided with a sealing gasket 14. In practical application, the pipe insertion portion 11 is used to be inserted into the pipe cavity of a pipe 100 and locked and fixed together with the snap ring 20, and the end portion 12 is connected to another pipe 100 through the movable nut 13, and the sealing gasket 14 is arranged at the connection between the end portion 12 and the other pipe 100, which can effectively fill the possible small gaps between them, thereby ensuring the sealing property of the connection.

[0031] Continuing to refer to Figure 4The outer surface of the cannula portion 11 is sequentially provided with an optical axis section 111, a threaded section 112 and a corrugated section 113 in the insertion direction, the threaded section 112 is threadedly connected with a second nut 114, and the clamping ring 20 is provided with a limiting convex rib 115 close to the inner wall of the port for limiting the second nut 114. It can be understood that the corrugated section 113 can be tightly matched with the tube cavity of the pipe 100 when the cannula portion 11 is inserted into the tube cavity, so that greater friction is generated, which can effectively prevent the pipe 100 from sliding relative to the pipe body 10 during use, and ensure the stability of the connection between the pipe 100 and the pipe body 10. The second nut 114 is used to quickly separate the pipe 100 and the pipe body 10. Specifically, when it is necessary to separate the pipe 100 and the pipe body 10, the second nut 114 is rotated clockwise, and the second nut 114 moves along the threaded section 112 to the pipe 100, so as to push the pipe 100, until the pipe 100 is separated from the pipe body 10. Compared with manually pulling out the pipe body 10, the operation is more convenient. Finally, the limiting convex rib 115 limits the depth of the pipe body 10 inserted into the clamping ring 20, so that the installation result is consistent each time, which is beneficial to ensure the quality and standardization of the pipeline connection.

[0032] Further, the inner wall of the clamping ring 20 is provided with a clamping convex rib 60 corresponding to the corrugated section 113. When the pipe body 10 is inserted into the pipe 100 and the clamping ring 20 is locked, the clamping convex rib 60 is pressed against the outer wall of the pipe 100 and tightly embedded into the groove of the corrugated section 113. The staggered structure formed between them greatly increases the friction between the clamping ring 20 and the pipe 100, effectively prevents the pipe 100 from sliding in the axial direction during use, and ensures that the pipe 100 remains in a stable position in the pipe body 10, providing a basic guarantee for the stable operation of the entire pipeline system.

[0033] Further, a plurality of sealing rings 70 are sleeved on the corrugated section 113, which are used to ensure the sealing effect between the pipe 100 and the pipe body 10, and prevent fluid leakage. In the embodiment, the number of sealing rings 70 is two, but in actual application, adaptive adjustment can be made according to the length of the cannula corrugated section 113. The embodiment is only an example and not a limitation.

[0034] In summary, the pipeline connecting piece in the above embodiment of the utility model can easily expand the caliber of the clamping ring 20 by rotating the first bolt 43 to push the limiting convex boss 41, which avoids the problems of difficult insertion and repeated alignment of the pipe 100 due to the difficulty in adjusting the caliber of the clamping ring 20, greatly saves the installation time and improves the assembly efficiency.

[0035] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The above-described embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that, for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A pipe coupling comprising a pipe member body, a snap ring, and a locking structure for tightening the snap ring so that a pipe is fastened between the pipe member body and the snap ring, characterized in that, The clamping ring has an opening to make it a non-closed loop structure, the outer surface of the clamping ring on both sides of the opening is provided with opposite stop bosses and bolt seats, the first bolt is threadedly connected on the bolt seat, and the screw rod part of the first bolt is arranged towards the stop boss.

2. The pipe coupling according to claim 1, wherein, The locking structure comprises mounting seats, a second bolt and a first nut, the number of the mounting seats is two, the mounting seats are arranged on the outer surface of the clamping ring on both sides of the opening, the mounting seats are provided with through holes, the second bolt passes through the through holes of the mounting seats to connect the first nut.

3. The pipe coupling according to claim 2, wherein, One side of the mounting seat protrudes outward to form a limiting boss, and the limiting boss stops the edge of the first nut.

4. The pipe coupling according to Claim 2, wherein, A gasket is arranged between the mounting seat and the first nut.

5. The pipe coupling according to Claim 1, wherein, The pipe body comprises a pipe insertion part and a head part arranged at one end of the pipe insertion part, a movable nut is arranged at a position close to the head part of the pipe insertion part, and a sealing gasket is arranged on the end face of the head part.

6. The pipe coupling according to claim 5, wherein, The outer surface of the pipe insertion part is sequentially provided with a light axis section, a threaded section and a corrugated section in the insertion direction, the second nut is threadedly connected on the threaded section, and the inner wall of the clamping ring close to the port is provided with a limiting convex rib for stopping the second nut.

7. The pipe coupling according to claim 6, wherein, The inner wall of the clamping ring is provided with a clamping convex rib, and the clamping convex rib is arranged corresponding to the corrugated section.

8. The pipe coupling according to Claim 6, wherein, A plurality of sealing rings are sleeved on the corrugated section.

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