CN218455037U

CN218455037U - Pipeline connecting structure

Info

Publication number: CN218455037U
Application number: CN202222509300.5U
Authority: CN
Inventors: 赵新保; 林胜年
Original assignee: Anhui Pinuo Pharmaceutical Chemical Equipment Co ltd
Current assignee: Anhui Pinuo Pharmaceutical Chemical Equipment Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2023-02-07
Anticipated expiration: 2032-09-21

Abstract

The utility model belongs to the technical field of the pipe connection, the utility model discloses a pipeline connection structure, including the solid fixed ring that the fixed cover was established on the elbow takeover, solid fixed ring closes fixedly soon with the elbow takeover through the screw thread, elbow takeover input and the sealed fixed connection of pressure vessel connecting pipe one end, the spread groove has been seted up along in the pressure vessel connecting pipe output, elbow takeover input protrusion in solid fixed ring, sealed the cover is established at elbow takeover output surface, elbow takeover output still overlaps and is equipped with the adapter sleeve, the adapter sleeve has restriction end and access end, the adapter sleeve restriction end is located solid fixed ring rear end, the adapter sleeve access end cover is established in the pressure vessel connecting pipe output outside, the adapter sleeve access end closes fixedly soon with pressure vessel connecting pipe output through the screw thread; when the thread is locked, the connecting sleeve is only needed to be sawed off and replaced without damaging the elbow connecting pipe and the pressure vessel connecting pipe, so that the replacement cost is low.

Description

Pipeline connecting structure

Technical Field

The utility model relates to a tube coupling technical field especially relates to a tube coupling structure.

Background

A plurality of liquid inlet and outlet pipelines are usually installed on a pressure container used in the production and preparation process of lithium battery electrolyte, and the liquid inlet and outlet pipelines are generally connected with different external pipelines through a valve body, a quick connector and a bent pipe according to production requirements. The stainless steel connection internal thread mode that current trade used all installs, dismantles and appears stainless steel screw thread seizure condition easily, and unable dismantlement need damage the pipeline this moment, and replacement cost is high.

In view of the above, the present inventors have invented a pipe connecting structure.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's not enough, provide a pipeline connection structure.

The utility model discloses a following technical means realizes solving above-mentioned technical problem: a pipeline connecting structure comprises a fixing ring fixedly sleeved on an elbow connecting pipe, the fixing ring is screwed and fixed with the elbow connecting pipe through threads, an input end of the elbow connecting pipe is fixedly connected with one end of a pressure vessel connecting pipe in a sealing manner, a connecting groove is formed in the inner edge of the output end of the pressure vessel connecting pipe, the input end of the elbow connecting pipe protrudes out of the fixing ring, the sealing gasket is sleeved on the outer surface of the output end of the elbow connecting pipe, a connecting sleeve is further sleeved on the output end of the elbow connecting pipe, the connecting sleeve is provided with a limiting end and an inlet end, the limiting end of the connecting sleeve is located at the rear end of the fixing ring, the inlet end of the connecting sleeve is sleeved on the outer side of the output end of the pressure vessel connecting pipe, inner threads are arranged on the inner wall of the connecting sleeve, external threads are arranged on the outer surface of the output end of the pressure vessel connecting pipe, and the inlet end of the connecting sleeve is screwed and fixed with the output end of the pressure vessel connecting pipe through threads; when the elbow connecting pipe is connected with the pressure vessel connecting pipe, the input end of the elbow connecting pipe is inserted into the connecting groove, the output end of the pressure vessel connecting pipe is abutted against the sealing gasket, and the sealing gasket is compressed between the output end of the pressure vessel connecting pipe and the fixing ring.

Furthermore, an annular chute is formed in the outer edge of the input end of the elbow connecting pipe, a squeezing ring is arranged in the connecting groove, and when the input end of the elbow connecting pipe is located in the connecting groove, the squeezing ring is located in the annular chute.

Further, the cross-sectional shape of the squeeze ring is circular in an uncompressed state.

Furthermore, a three-piece ball valve is welded at the output end of the elbow connecting pipe, the output end of the three-piece ball valve is fixed with a quick-connection union, a socket type self-locking quick-assembly tool bit is fixed in the quick-connection union in a clamping manner, and a polytetrafluoroethylene sealing gasket is arranged between the quick-connection union and the socket type self-locking quick-assembly tool bit.

The utility model has the advantages that:

when the thread lock is in a dead state, the connecting sleeve is only needed to be sawed, the sawing position is between the limiting end and the inlet end of the connecting sleeve, for example, the position of a mark line in the figure, after the connecting sleeve is transversely sawed, the elbow connecting pipe can be separated from the connecting pipe of the pressure vessel, the inlet end of the connecting sleeve is vertically sawed out of the inlet end of the connecting sleeve, and the disassembly of the inlet end of the connecting sleeve is completed; then the fixed ring is loosened, the fixed ring is taken down from the input end of the elbow connecting pipe, the limit end of the connecting sleeve is taken down, the connecting sleeve is only needed to be replaced, the elbow connecting pipe and the connecting pipe of the pressure vessel are not needed to be damaged, and the replacement cost is low.

When the pipeline is required to be connected with the pressure container, the elbow connecting pipe input end is inserted into the pressure container connecting pipe output end to complete preliminary butt joint, then the connecting sleeve inlet end is sleeved on the outer side of the pressure container connecting pipe output end, the connecting sleeve is screwed down to complete connection of the elbow connecting pipe and the pressure container connecting pipe, and the operation is convenient and fast.

Drawings

FIG. 1 is a schematic view of the pipeline connection structure of the present invention;

fig. 2 is the schematic diagram of the internal structure of the connecting sleeve of the present invention.

In the figure: 1. an elbow is connected with a pipe; 11. a fixing ring; 12. an annular chute; 2. a pressure vessel connecting pipe; 21. connecting grooves; 3. connecting sleeves; 31. marking a line; 4. a gasket; 5. a squeezing ring; 6. a three-piece ball valve; 7. quickly connecting a movable joint; 8. a socket type self-locking quick-mounting tool bit; 9. tetrafluoro sealing gasket.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Examples

Referring to fig. 1, a pipeline connection structure according to this embodiment includes an elbow connection pipe 1, an input end of the elbow connection pipe 1 is fixedly connected to one end of a pressure vessel connection pipe 2 in a sealing manner, an input end of the pressure vessel connection pipe 2 is connected to a pressure vessel (not shown in the drawings), a medium flowing direction in the pipeline is shown as a direction a in fig. 1, a fixing ring 11 is fixedly connected to an outer side of the input end of the elbow connection pipe 1 through a screw thread, a connection groove 21 is formed in an inner edge of an output end of the pressure vessel connection pipe 2, the input end of the elbow connection pipe 1 protrudes out of the fixing ring 11, a gasket 4 is conveniently installed, the gasket 4 is sleeved on an outer surface of the output end of the elbow connection pipe 1, an output end of the elbow connection pipe 1 is further sleeved with a connection sleeve 3, the connection sleeve 3 has a limiting end and an inlet end, the limiting end of the connection sleeve 3 is located at a rear end of the fixing ring 11, the inlet end of the connection sleeve 3 is sleeved on an outer side of the output end of the pressure vessel connection pipe 2, an inner wall of the connection pipe 3 is provided with an internal thread, an external thread, an outer surface of the output end of the pressure vessel connection pipe 2 is provided with an external thread, and an inlet end of the connection pipe 3 is screwed with a fixed to the pressure vessel connection pipe 2 through a screw thread.

When the output end of the pressure vessel connecting pipe 2 is screwed and fixed, the input end of the elbow connecting pipe 1 is inserted into the connecting groove 21, the output end of the pressure vessel connecting pipe 2 abuts against the sealing gasket 4, and the sealing gasket 4 is compressed between the output end of the pressure vessel connecting pipe 2 and the fixing ring 11, as shown in fig. 2.

In order to further improve the connection sealing performance of the elbow connecting pipe 1 and the pressure vessel connecting pipe 2, the outer edge of the input end of the elbow connecting pipe 1 is provided with an annular chute 12, a squeezing ring 5 is arranged in the connecting groove 21, when the input end of the elbow connecting pipe 1 is positioned in the connecting groove 21, the squeezing ring 5 is positioned in the annular chute 12 and is compressed to be consistent with the shape of the annular chute 12, and the cross section of the squeezing ring 5 is circular under the uncompressed state.

In order to facilitate butt joint of the elbow connecting pipe 1 and equipment and control of flow of a conveying medium in the elbow connecting pipe 1, the three-piece ball valve 6 is welded at the output end of the elbow connecting pipe 1, the output end of the three-piece ball valve 6 is fixed with the quick-connection movable joint 7, the quick-connection movable joint 7 is internally fixed with the socket type self-locking quick-assembly tool bit 8 in a clamping manner, a polytetrafluoroethylene sealing gasket 9 is arranged between the quick-connection movable joint 7 and the socket type self-locking quick-assembly tool bit 8, the sealing effect is better, the quick-connection movable joint 7 is designed with an external thread tensioning manner, and quick disassembly and assembly are facilitated. The problem of valve body and quick connector stainless steel screw thread seize, seamless dismantlement puzzlement is solved, the pressure-bearing is reached equally, sealed, no leakage effect.

When the connecting device is used, when a pipeline is required to be connected with a pressure vessel, the input end of the elbow connecting pipe 1 is inserted into the output end of the pressure vessel connecting pipe 2 to complete preliminary butt joint, then the connecting sleeve 3 enters the end sleeve to be sleeved outside the output end of the pressure vessel connecting pipe 2, the connecting sleeve 3 is screwed up to complete connection of the elbow connecting pipe 1 and the pressure vessel connecting pipe 2, and the operation is convenient and fast.

When the thread is locked, the connecting sleeve 3 is only needed to be sawn off, the sawing position is between the limiting end and the inlet end of the connecting sleeve 3, for example, the position of a mark line 31 in fig. 1, the connecting sleeve 3 is transversely sawn off, the elbow connecting pipe 1 and the pressure vessel connecting pipe 2 can be separated, the inlet end left on the connecting sleeve 3 at the output end of the pressure vessel connecting pipe 2 is shown along the direction A, the inlet end of the connecting sleeve 3 is vertically sawn off, and the disassembly of the inlet end of the connecting sleeve 3 is completed.

Then the fixing ring 11 is loosened, the fixing ring 11 is taken down from the input end of the elbow connecting pipe 1, the limiting end of the connecting sleeve 3 is taken down, only the connecting sleeve 3 needs to be replaced, the elbow connecting pipe 1 and the pressure vessel connecting pipe 2 do not need to be damaged, and the replacement cost is low.

Through the design improvement, the threaded connection mode that can prevent stainless steel special material from making bites and dies, leaks, trade problems such as pressure-bearing, simultaneously, reduces the change frequency of stainless steel special material screw part, reduces the cost of enterprises.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A pipe connection structure characterized in that: the connecting device comprises a fixing ring (11) fixedly sleeved on an elbow connecting pipe (1), wherein the fixing ring (11) is screwed and fixed with the elbow connecting pipe (1) through threads, the input end of the elbow connecting pipe (1) is fixedly connected with one end of a pressure vessel connecting pipe (2) in a sealing manner, a connecting groove (21) is formed in the inner edge of the output end of the pressure vessel connecting pipe (2), the input end of the elbow connecting pipe (1) protrudes out of the fixing ring (11), a sealing gasket (4) is sleeved on the outer surface of the output end of the elbow connecting pipe (1), a connecting sleeve (3) is further sleeved at the output end of the elbow connecting pipe (1), the connecting sleeve (3) is provided with a limiting end and an inlet end, the limiting end of the connecting sleeve (3) is positioned at the rear end of the fixing ring (11), the inlet end of the connecting sleeve (3) is sleeved on the outer side of the output end of the pressure vessel connecting pipe (2), inner walls of the connecting sleeve (3) are provided with inner threads, the outer surface of the output end of the pressure vessel connecting pipe (2) is provided with outer threads, and the inlet end of the connecting pipe (3) is screwed and fixed with the output end of the pressure vessel connecting pipe (2) through threads; when elbow connecting pipe (1) is connected with pressure vessel connecting pipe (2), elbow connecting pipe (1) input inserts in spread groove (21), and sealed pad (4) is supported to pressure vessel connecting pipe (2) output, compresses sealed pad (4) between pressure vessel connecting pipe (2) output and solid fixed ring (11).

2. A pipe connecting structure according to claim 1, wherein: the outer edge of the input end of the elbow connecting pipe (1) is provided with an annular chute (12), a squeezing ring (5) is arranged in the connecting groove (21), and when the input end of the elbow connecting pipe (1) is positioned in the connecting groove (21), the squeezing ring (5) is positioned in the annular chute (12).

3. A pipe connecting structure according to claim 2, wherein: the cross-sectional shape of the extrusion ring (5) is circular in an uncompressed state.

4. A pipe connecting structure according to claim 3, wherein: the output end of the elbow connecting pipe (1) is welded with a three-piece ball valve (6), the output end of the three-piece ball valve (6) is fixed with a quick-connection movable joint (7), a socket self-locking quick-assembly tool bit (8) is fixed in the quick-connection movable joint (7) in a clamping manner, and a polytetrafluoroethylene sealing gasket (9) is arranged between the quick-connection movable joint (7) and the socket self-locking quick-assembly tool bit (8).