CN216768729U

CN216768729U - A connection compensator for CPVC pipeline junction

Info

Publication number: CN216768729U
Application number: CN202122776553.4U
Authority: CN
Inventors: 孔华铭
Original assignee: Hangzhou Xinlong Industry Co ltd
Current assignee: Hangzhou Xinlong Industry Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-06-17
Anticipated expiration: 2031-11-10

Abstract

The utility model discloses a connecting compensator for a CPVC (chlorinated polyvinyl chloride) pipeline connecting part, aiming at solving the defect of poor sealing effect of the traditional CPVC pipeline telescopic compensator. The utility model discloses an including external pipe and inner union, the one end of inner union is provided with protruding ring, be equipped with annular slot in the protruding ring end wall, be equipped with the ring of inserting in the external pipe, insert ring and annular slot adaptation, be equipped with the sealing washer on the outer peripheral face of protruding ring, be equipped with sealing device in the external pipe, sealing device includes that a plurality of slides set up in the internal adaptation piece of external pipe inside wall, be connected with a plurality of expanding spring between adaptation piece and the external pipe, the sealing washer passes through ruler strip joint with the adaptation piece, the one end of keeping away from each other of external pipe and inner union all is equipped with flange, the flexible compensator of CPVC pipeline still includes the tetrafluoro bellows, the pot head of tetrafluoro bellows is established at the outer peripheral face of external pipe, the pot head that the outer tube was kept away from to the tetrafluoro bellows is established at the outer peripheral face of inner union.

Description

A connection compensator for CPVC pipeline junction

Technical Field

The utility model relates to the technical field of pipeline connection, in particular to a connecting compensator for a CPVC pipeline connection part.

Background

Because medium in the heat supply pipeline can propagate various heats to the pipeline inner wall when flowing in the pipeline, when the temperature is higher, cause deformation or destruction to the junction of pipeline easily, appear for reducing this kind of phenomenon, people often install the flexible compensator of pipeline at the junction of heat supply pipeline to the thermal extension of compensation pipeline, thereby reduce the stress of pipe wall and the effort that acts on valve member or supporting structure.

The pipe expansion compensator is usually made of CPVC with high temperature resistance. The telescopic compensator for the pipeline generally comprises an inner sleeve and an outer sleeve, the inner sleeve is sleeved in the outer sleeve, a sealing ring is sleeved on the inner sleeve generally, and the sealing ring is expanded by heat and is tightly attached to the inner wall of the outer sleeve in use, so that liquid can flow into the inner sleeve from the outer sleeve better and cannot flow out from a gap between the outer sleeve and the inner sleeve easily.

Aiming at the related art, the sealing ring in the related art is usually made of a rubber material, and the sealing ring is easy to age after being used for a long time, so that the sealing effect is lost, and the leakage of the CPVC pipeline telescopic compensator is easy to cause.

Chinese patent publication No. CN206386592U, announcement date 2016, 12 month 15, the name of the utility model is a connecting mechanism for pipelines, which discloses a connecting mechanism for pipelines with quick installation and convenient operation, wherein a first protruding portion is formed around a circle at the port of a first pipeline, two thirds of the distance between the upper end and the lower end of the first protruding portion and the center of the first protruding portion are respectively provided with a first inserting plate, the upper end and the lower end of the first protruding portion are respectively provided with an L-shaped baffle for connecting and fixing the first pipeline and a second pipeline, and the two L-shaped baffles are movably connected with the upper end and the lower end of the first protruding portion; and a second bulge is formed at the port of the second pipeline around the circumference, and a second slot corresponding to the first inserting plate is respectively arranged at the upper end and the lower end of the second bulge at two thirds distance from the center position of the second bulge.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes the defect of poor sealing effect of the traditional CPVC pipeline telescopic compensator, and provides the connecting compensator for the joint of the CPVC pipeline, which can ensure that a medium is difficult to flow out from the sleeve joint of an inner connecting pipe and an outer connecting pipe when flowing into the CPVC pipeline telescopic compensator through the close fit of an adapter block and a sealing ring and the arrangement of a tetrafluoro bellows, thereby being beneficial to keeping the sealing property of the CPVC pipeline telescopic compensator during the thermal extension of a compensation pipeline and further ensuring the sealing property of the CPVC pipeline telescopic compensator.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a connection compensator for CPVC pipeline junction, including external pipe and inner union coupling, the one end of inner union coupling is provided with protruding ring, be equipped with annular slot in the protruding ring end wall, be equipped with the insert ring in the external pipe, insert ring and annular slot adaptation, be equipped with the sealing washer on the outer peripheral face of protruding ring, be equipped with sealing device in the external pipe, sealing device includes that a plurality of slides set up in the internal adaptation piece of external pipe inside wall, be connected with a plurality of expanding spring between adaptation piece and the external pipe, the sealing washer passes through ruler joint with the adaptation piece, the one end of keeping away from each other of external pipe and inner union coupling all is equipped with flange, CPVC pipeline expansion compensator still includes the tetrafluoro bellows, the outer peripheral face of taking over is established to a pot head of tetrafluoro bellows, the outer peripheral face of taking over at the inner union coupling is kept away from to the tetrafluoro bellows.

Various heats can be propagated to the pipeline inner wall to the medium in the heat supply pipeline when the pipeline flows, when the temperature is higher, cause deformation or destruction to the junction of pipeline easily, appear for reducing this type of phenomenon, people often install the flexible compensator of pipeline at the junction of heat supply pipeline, with the thermal elongation of compensation pipeline, so the leakproofness of compensation pipeline is especially important, and the design of the flexible compensator of CPVC pipeline in the utility model, can closely cooperate through adaptation piece and sealing washer, and the setting of tetrafluoro bellows, when making the medium flow into the flexible compensator of CPVC pipeline, be difficult for flowing from the interior pipe and the cup joint of outer union coupling, be favorable to can also keeping the leakproofness of the flexible compensator of CPVC pipeline when the thermal elongation of compensation pipeline, thereby the leakproofness of the flexible compensator of CPVC pipeline has been guaranteed, thereby the security of pipeline compensator has been improved greatly.

As the preferred, be equipped with flexible chamber in the outer side wall body of taking over, adaptation piece slidable mounting is in flexible intracavity, and expanding spring connects between flexible chamber diapire and adaptation piece diapire, is equipped with the guide block between two adaptation pieces, is equipped with a plurality of gliding pull rods of adaptation piece that can drive on the outer pipe. The setting of adjustable adaptation piece is favorable to improving the leakproofness in sealing washer and the outer nipple cooperation back pipeline, can make inner joint pipe and outer nipple ann change more convenient moreover.

As preferred, the adaptation piece circumference equidistance is arranged in flexible intracavity, and adaptation piece both ends wall body parallel arrangement. The sliding adjustment of the adapting block is convenient.

Preferably, the pull rod is of a T-shaped structure and comprises an extension section and a pulling section, the extension section is slidably mounted on the outer connecting pipe, the end part of the extension section is fixedly mounted with the end part of the adapting block, and the pulling section is arranged on the outer side of the outer connecting pipe. The matching block can be moved and adjusted, namely, the inner connecting pipe and the outer connecting pipe can be conveniently detached and installed.

Preferably, the sealing rings are arranged in a plurality of numbers, and the sealing rings are uniformly arranged on the peripheral surface of the inner connecting pipe.

Preferably, the first fixing piece and the second fixing piece for fixing the tetrafluoro bellows are respectively arranged on the external connecting pipe and the internal connecting pipe.

Preferably, the first fixing piece is a hoop I and is used for fixing the polytetrafluoroethylene corrugated pipe on the peripheral surface of the external connecting pipe; the fixing piece II is a hoop II and is used for fixing one end of the tetrafluoro corrugated pipe, which is far away from the hoop I, on the peripheral surface of the inner connecting pipe.

Preferably, the outer peripheral surface of the inner joint pipe is provided with a limit groove for clamping the seal ring.

Preferably, the outer joint pipe is provided with a stopper for restricting the inner joint pipe from being separated from the outer joint pipe.

Preferably, the limiting part comprises a limiting ring, the outer peripheral surface of the limiting part is clamped with the inner wall of the outer connecting pipe, a plurality of mounting grooves are formed in the inner peripheral surface of the limiting ring, balls are rotatably connected in the mounting grooves, and the outer peripheral surface of each ball is in contact with the outer peripheral surface of the inner connecting pipe.

Compared with the prior art, the utility model has the beneficial effects that: (1) through the arrangement of the sealing ring, the adapting block and the tetrafluoro bellows, when a medium flows into the CPVC pipeline telescopic compensator, the medium is not easy to flow out from the sleeving part of the inner sleeve and the outer sleeve, so that the sealing performance of the sleeving part of the inner sleeve and the outer sleeve is favorably maintained, the abrasion of the sealing ring during moving is reduced, and the sealing performance of the sealing ring can be maintained all the time; (2) through the arrangement of the limiting part, when the inner sleeve and the outer sleeve move mutually, the inner sleeve is not easy to separate from the outer sleeve; (3) through the setting of first staple bolt and second staple bolt for the fixed simple and convenient more of tetrafluoro bellows.

Drawings

FIG. 1 is a schematic diagram of a connection compensator for a CPVC pipe connection according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at "A";

FIG. 3 is a cross-sectional view taken at "B-B" in FIG. 1;

in the figure: the tee joint comprises an external connecting pipe 1, an internal connecting pipe 2, a convex ring 3, an annular slot 4, an insert ring 5, a sealing ring 6, a sealing device 7, an adaptation block 8, an expansion spring 9, a connecting flange 10, a polytetrafluoroethylene corrugated pipe 11, an expansion cavity 12, a guide slider 13, a pull rod 14, an extension section 15, a pulling section 16, a hoop I17, a hoop II 18, a limiting groove 19, a limiting part 20, a limiting ring 21, a mounting groove 22, a ball 23 and a mounting cavity 24.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

As used herein, the singular forms "a", "an", "the" and "the" include plural referents unless the content clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, units, modules, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

The technical scheme of the utility model is further described in detail by the following specific embodiments in combination with the attached drawings:

example 1: a connection compensator for a CPVC pipeline joint (see attached figures 1-3) comprises an outer connecting pipe 1, an inner connecting pipe 2 and a CPVC pipeline telescopic compensator, wherein one end of the inner connecting pipe 2 is provided with a convex ring 3, the end wall of the convex ring 3 is internally provided with an annular slot 4, the outer connecting pipe 1 is internally provided with an insert ring 5, the inner side wall of the outer connecting pipe is internally provided with a mounting cavity 24, the insert ring is fixedly arranged in the mounting cavity, the insert ring 5 is matched with the annular slot 4 and can slide in the annular slot, the outer peripheral surface of the convex ring 3 is provided with a sealing ring 6, the outer connecting pipe 1 is internally provided with a sealing device 7, the sealing device 7 comprises a plurality of adapter blocks 8 which are arranged in the inner side wall of the outer connecting pipe 1 in a sliding manner, a plurality of telescopic springs 9 are connected between the adapter blocks 8 and the outer connecting pipe 1, the sealing ring 6 is clamped with the adapter blocks 8 through straight ruler strips, one end of the outer connecting pipe 1, which is far away from the inner connecting pipe 2, is provided with a connecting flange 10, the CPVC pipeline telescopic compensator also comprises a PTFE corrugated pipe 11, wherein one end of the PTFE corrugated pipe 11 is sleeved on the peripheral surface of the external connecting pipe 1, and one end of the PTFE corrugated pipe 11, which is far away from the external sleeve 1, is sleeved on the peripheral surface of the internal connecting pipe 2. Various heats can be propagated to the pipeline inner wall to the medium in the heat supply pipeline when flowing in the pipeline, when the temperature is higher, cause deformation or destruction to the junction of pipeline easily, appear for reducing this type of phenomenon, people often install the flexible compensator of pipeline in the junction of heat supply pipeline, with the thermal elongation of compensating pipe, so the leakproofness of compensating pipe is especially important, and the design of the flexible compensator of CPVC pipeline in the utility model, can closely cooperate through adapter block and sealing washer, and the setting of tetrafluoro bellows, when making the medium flow into the flexible compensator of CPVC pipeline, be difficult for flowing from the department of cup jointing of inner union coupling and outer union coupling, be favorable to can also keeping the leakproofness of the flexible compensator of CPVC pipeline when the thermal elongation of compensating pipe, thereby the leakproofness of the flexible compensator of CPVC pipeline has been guaranteed, thereby the security of pipeline compensator has been improved greatly.

Be equipped with flexible chamber 12 in the outer 1 inboard wall body of taking over, 8 slidable mounting of adaptation piece is in flexible chamber 12, expanding spring 9 is connected between flexible chamber 12 and adaptation piece 8, be equipped with between two adaptation pieces 8 and lead slider 13, it is equipped with four to lead the slider, the adaptation piece is close to and is equipped with the ruler strip on the sealing washer lateral wall body, can cooperate with the ruler strip on the sealing washer, thereby make the flexible compensator of CPVC pipeline when extending, adaptation piece and sealing washer can relative slip, then be engaged again, be equipped with a plurality of gliding pull rods 14 of adaptation piece 8 that can drive on the outer 1 of taking over, the adaptation piece is equipped with four. The setting of adaptation piece with adjustable is favorable to improving the leakproofness in the pipeline behind sealing washer and the outer joint sleeve cooperation, can make inner joint pipe and outer joint pipe ann change more convenient moreover.

The adaptation piece circumference equidistance is arranged at flexible intracavity, adaptation piece both ends wall body parallel arrangement. The sliding adjustment of the adapting block is convenient.

The pull rod 14 is a T-shaped structure, the pull rod 14 comprises an extension section 15 and a pulling section 16, the extension section 15 is slidably mounted on the outer connecting pipe 1, the end part of the extension section is fixedly mounted with the end part of the adapting block 8, and the pulling section 16 is arranged on the outer side of the outer connecting pipe 1. The matching block can be moved and adjusted, namely, the inner connecting pipe and the outer connecting pipe can be conveniently detached and installed.

The sealing rings 6 are arranged in a plurality, and the sealing rings 6 are uniformly arranged on the peripheral surface of the inner connecting pipe 2.

The external connecting pipe 1 and the internal connecting pipe 2 are respectively provided with a first fixing piece and a second fixing piece which are used for fixing the tetrafluoro bellows 11.

The first fixing piece is a hoop I17 and is used for fixing the polytetrafluoroethylene corrugated pipe 11 on the peripheral surface of the external connecting pipe 1; the second fixing piece is a hoop II 18 and is used for fixing one end of the tetrafluoro corrugated pipe 11, which is far away from the hoop I17, on the peripheral surface of the inner connecting pipe 2.

The outer peripheral surface of the inner connecting pipe 2 is provided with a limiting groove 19 for clamping the sealing ring 6.

The external connecting tube 1 is provided with a limiting piece 20 which limits the internal connecting tube to be separated from the external connecting tube 1.

The limiting part 20 comprises a limiting ring 21, the outer peripheral surface of the limiting part 21 is clamped with the inner wall of the outer connecting pipe 1, a plurality of mounting grooves 22 are formed in the inner peripheral surface of the limiting ring 21, balls 23 are rotatably connected in the mounting grooves 22, and the outer peripheral surface of each ball 23 is in contact with the outer peripheral surface of the inner connecting pipe 2.

The working process is as follows:

when the CPVC pipeline telescopic compensator needs to be installed, one end of a polytetrafluoroethylene corrugated pipe is sleeved on the outer peripheral surface of an inner connecting pipe and fixed by using a hoop II, a sealing ring is sleeved in a limiting groove, one end of the inner connecting pipe, which is provided with an annular bulge, is inserted into an outer connecting pipe, the outer wall of the limiting ring is clamped with the inner wall of the outer connecting pipe by moving the limiting ring, one end of the flexible corrugated pipe, which is opposite to the hoop I, is fixed on the circumferential surface of the outer connecting pipe by using the hoop I, the distance between the inner connecting pipe and the outer connecting pipe is moved, the inner connecting pipe and the outer connecting pipe are respectively connected onto corresponding pipelines by connecting flanges, when a medium with higher heat flows into the CPVC pipeline telescopic compensator, the sealing ring is expanded by the heat and further abuts against the inner wall of the outer connecting pipe, so that the sealing performance of the sleeved part of the outer connecting pipe and the inner connecting pipe is better; the arrangement of the PTFE corrugated pipe is beneficial to further improving the sealing performance of the sleeving part between the outer connecting pipe and the inner connecting pipe, so that a medium is less prone to flowing out of the sleeving part between the inner connecting pipe and the outer connecting pipe, and the sealing performance of the CPVC pipeline telescopic compensator is further improved; wherein, this in-process adaptation piece and sealing washer can carry out the relative slip along the inclined plane when relative movement, then carry out the chucking to improve the leakproofness between the inside and outside pipe greatly, and reduced sealing coil's wearing and tearing, moreover through the annular slot with insert the cooperation of ring, can further improve the leakproofness of inside and outside pipe.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to be limiting in any way, and other variations and modifications are possible without departing from the scope of the utility model as set forth in the appended claims.

Claims

1. A connection compensator for a CPVC (chlorinated polyvinyl chloride) pipeline joint is characterized by comprising an outer connecting pipe (1), an inner connecting pipe (2) and a CPVC pipeline telescopic compensator, wherein one end of the inner connecting pipe (2) is provided with a raised ring (3), an annular slot (4) is arranged in the end wall of the raised ring (3), an insert ring (5) is arranged in the outer connecting pipe (1), the insert ring (5) is matched with the annular slot (4), the outer peripheral surface of the raised ring (3) is provided with a sealing ring (6), a sealing device (7) is arranged in the outer connecting pipe (1), the sealing device (7) comprises a plurality of adapter blocks (8) which are arranged in the inner side wall of the outer connecting pipe (1) in a sliding manner, a plurality of telescopic springs (9) are connected between the adapter blocks (8) and the outer connecting pipe (1), the sealing ring (6) is clamped with the adapter blocks (8) through straight ruler strips, and one end, far away from each other end of the outer connecting pipe (1) and the inner connecting pipe (2) is provided with a connecting flange (10), the CPVC pipeline telescopic compensator further comprises a tetrafluoro bellows (11), one end of the tetrafluoro bellows (11) is sleeved on the peripheral surface of the external connecting pipe (1), and one end, far away from the external connecting pipe (1), of the tetrafluoro bellows (11) is sleeved on the peripheral surface of the internal connecting pipe (2).

2. The connection compensator for the CPVC pipeline joint according to claim 1, wherein an expansion cavity (12) is arranged in the inner side wall body of the external connecting pipe (1), the adapter block (8) is slidably mounted in the expansion cavity (12), the expansion spring (9) is connected between the expansion cavity (12) and the adapter block (8), a guide sliding block (13) is arranged between the two adapter blocks (8), and a plurality of pull rods (14) capable of driving the adapter block (8) to slide are arranged on the external connecting pipe (1).

3. The connection compensator for the joint of the CPVC pipes as claimed in claim 1, wherein the adapter blocks are circumferentially arranged in the telescopic cavity at equal intervals, and the wall bodies at two ends of the adapter blocks are arranged in parallel.

4. A connecting compensator for CPVC (chlorinated polyvinyl chloride) pipeline joints as claimed in any one of claims 1, 2 or 3, wherein the pull rod (14) is in a T-shaped structure, the pull rod (14) comprises an extension section (15) and a pulling section (16), the extension section (15) is slidably mounted on the outer connecting pipe (1), the end of the extension section is fixedly mounted with the end of the adapter block (8), and the pulling section (16) is arranged outside the outer connecting pipe (1).

5. The connection compensator for the CPVC pipe joints as claimed in claim 1, wherein the sealing rings (6) are provided in plurality, and the plurality of sealing rings (6) are uniformly arranged on the outer circumferential surface of the inner connecting pipe (2).

6. The connection compensator for the joint of the CPVC (chlorinated polyvinyl chloride) pipelines as claimed in claim 1, wherein a first fixing piece and a second fixing piece for fixing the PTFE (corrugated pipe) 11 are respectively installed on the external connecting pipe (1) and the internal connecting pipe (2).

7. The connection compensator for the CPVC pipe joint as recited in claim 6, wherein the first fixing member is a hoop (17) for fixing one end of the PTFE corrugated pipe (11) on the outer circumferential surface of the outer connecting pipe (1); the second fixing piece is a hoop II (18) and is used for fixing one end, far away from the hoop I (17), of the tetrafluoro corrugated pipe (11) on the outer peripheral surface of the inner connecting pipe (2).

8. The connecting compensator for the CPVC (chlorinated polyvinyl chloride) pipeline connecting part as claimed in any one of claims 1 or 5, wherein a limiting groove (19) for clamping the sealing ring (6) is formed in the outer peripheral surface of the inner connecting pipe (2).

9. The connection compensator for the joint of the CPVC (chlorinated polyvinyl chloride) pipes as claimed in claim 1, wherein the external connecting pipe (1) is provided with a stopper (20) for limiting the internal connecting pipe from being separated from the external connecting pipe (1).

10. The connection compensator for the CPVC pipe joint according to claim 9, wherein the limiting member (20) comprises a limiting ring (21), the outer circumferential surface of the limiting ring (21) is clamped with the inner wall of the outer connecting pipe (1), the inner circumferential surface of the limiting ring (21) is provided with a plurality of mounting grooves (22), the mounting grooves (22) are rotatably connected with balls (23), and the outer circumferential surface of each ball (23) is in contact with the outer circumferential surface of the inner connecting pipe (2).