CN210716497U

CN210716497U - Sealing component for pipeline connection and connecting device

Info

Publication number: CN210716497U
Application number: CN201921032253.1U
Authority: CN
Inventors: 陈文�; 罗千
Original assignee: Chengdu Full Staff Plastic Pipe Industry Co Ltd
Current assignee: Chengdu Full Staff Plastic Pipe Industry Co Ltd
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-06-09
Anticipated expiration: 2029-07-03

Abstract

The utility model belongs to the technical field of the pipe connection spare, concretely relates to a sealing member and sealing device for pipe connection. The technical scheme is as follows: the utility model provides a sealing member for pipe connection, includes the sealing member main part, the shape of the inner wall of sealing member main part is the face of cylinder, and the outer wall of sealing member main part is including the first toper wall, annular platform, the second toper wall that set up in order, and the oblique angle of first toper wall is the same with the oblique angle of the tapered end mouth of pipe fitting, and the oblique angle of second toper wall is the same with the oblique angle of the inner wall of lock ring. The utility model provides a through set up annular platform in order to improve the sealing effect and the bearing effect be used for pipe connection's sealing member and connecting device in the sealing member main part.

Description

Sealing component for pipeline connection and connecting device

Technical Field

The utility model belongs to the technical field of the pipe connection spare, concretely relates to a sealing member and connecting device for pipe connection.

Background

In the prior art, an O-shaped ring is usually adopted to seal the joint of a PVC/PP drainage pipeline and a pipe fitting. However, in this sealing method, the contact between the O-ring and the connecting member is a line, and both the sealing effect and the pressure-bearing effect at the sealing position are not good enough.

The utility model with the patent application number of CN201420097353.3 discloses a portable locking connecting component for a PVC/PP drainage pipeline, which comprises a pipe fitting for connecting a pipe, a rubber sleeve, a shrinkage locking ring and a shrinkage locking cover which are sequentially arranged and locked at the port of the pipe fitting; wherein, the rubber sleeve internal diameter and tubular product external diameter adaptation, pipe fitting port are equipped with and are used for installing the rubber sleeve and the outer big-end-up conical surface to by shrink lock ring and this conical surface cooperation with the rubber sleeve locking spacing, shrink lock lid and pipe fitting outer wall threaded connection and with shrink lock ring and rubber sleeve locking at the pipe fitting port. The utility model discloses utilize the relative distance of threaded connection between shrink locking lid and the pipe fitting, set up the rubber sleeve that matches wherein and shrink locking circle and utilize the two deformation under the exogenic action, realized the leakproofness and the connection steadiness after pipe fitting and tubular product are connected, simultaneously, utilize the detachable connection structure of screw thread still to improve the convenience of construction, improved the efficiency of construction, reduced construction cost.

One inclined plane of the rubber sleeve of the connecting component is contacted with the locking ring, and after the other inclined plane is contacted with the port of the pipe fitting, the rubber rib on the outer wall of the rubber sleeve is contacted with the inner wall of the pipe fitting. However, the contact surface of the locking ring and the rubber sleeve is only an inclined surface, if liquid passes through the rubber rib, the liquid can easily continue to flow through the inclined surface of the rubber sleeve, the stability of the locking ring is not high, and the sealing effect is further reduced. And, set up the rubber muscle in the juncture on two inclined planes of rubber sleeve for pipe fitting, check ring respectively and the sealed degree between the inclined plane will reduce. Therefore, the outer wall of the rubber sleeve of the connecting member is separated from the two inclined planes on the outer wall only by one sealing rib, and the sealing effect and the pressure-bearing effect are poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model aims to provide a sealing member and a connecting device for pipe connection through set up annular platform in order to improve sealed effect and pressure-bearing effect in the sealing member main part.

The utility model discloses the technical scheme who adopts does:

the utility model provides a sealing member for pipe connection, includes the sealing member main part, the shape of the inner wall of sealing member main part is the face of cylinder, and the outer wall of sealing member main part is including the first toper wall, annular platform, the second toper wall that set up in order, and the oblique angle of first toper wall is the same with the oblique angle of the tapered end mouth of pipe fitting, and the oblique angle of second toper wall is the same with the oblique angle of the inner wall of lock ring.

Preferably, an inner sealing rib is provided on an inner wall of the sealing member body.

Preferably, a plurality of external sealing ribs are arranged on the first conical wall.

Preferably, the number of the external sealing ribs on the first conical wall is two, and the two external sealing ribs are respectively arranged at one third and two thirds of the first conical wall.

Preferably, the first tapered wall has an angle of inclination of 10 ° and the second tapered wall has an angle of inclination of 20 °.

A connecting device for pipeline connection comprises a shrinkage locking cover, a locking ring, a sealing component and a pipe fitting, wherein the shrinkage locking cover and the sealing component are sequentially sleeved on a pipeline; the sealing component comprises a sealing component main body, the inner wall of the sealing component main body is in a cylindrical surface shape, the outer wall of the sealing component main body comprises a first conical wall, an annular platform and a second conical wall which are sequentially arranged, and a conical port is formed in the inner wall of the pipe fitting; one end of the locking ring is lapped on the annular platform, the first conical wall is in contact with a conical port of the pipe fitting, the second conical wall is in contact with the locking ring, the oblique angle of the first conical wall is the same as that of the conical port of the pipe fitting, and the oblique angle of the second conical wall is the same as that of the inner wall of the locking ring.

Preferably, an inner sealing rib is arranged on the inner wall of the sealing member main body, and the inner sealing rib is pressed on the outer wall of the pipeline.

Preferably, a plurality of external sealing ribs are arranged on the first conical wall, and the external sealing ribs are tightly pressed on the conical port of the pipe fitting.

The utility model has the advantages that:

1. because the annular platform is arranged between the first conical wall and the second conical wall of the sealing component main body, when the inner wall of the locking ring is tightly sealed and pressed with the second conical wall, the end face of the locking ring can be tightly pressed with the annular platform, so that the locking ring can be tightly pressed with the sealing component main body, and the annular platform enables the bearing capacity of the sealing component to be correspondingly improved. The annular platform also improves the stability of the locking ring, and further improves the sealing performance and the bearing capacity of the sealing component. The junction of the first conical wall and the second conical wall is not provided with a sealing rib, so that the sealing performance between the locking ring and the second conical wall as well as between the pipe fitting and the first conical wall is ensured.

2. The inner wall of the sealing member main body is provided with the internal sealing ribs, so that the sealing member main body can be better pressed on the pipeline, the condition that a corrosion channel is formed on the inner wall of the sealing member main body due to corrosion is avoided, and the sealing property between the sealing member main body and the pipeline is ensured.

3. Be provided with a plurality of external seal muscle on the first conical wall to sealing member main part can compress tightly with the pipe fitting is better, has avoided first conical wall to form the condition of corroding the passageway because of corroding, has guaranteed the leakproofness between first conical wall and the pipe fitting.

4. Two external seal muscle on the first conical wall set up respectively in the one-third of first conical wall and two-thirds department, then two external seal muscle can be evenly atress on the pipe fitting, guarantee that first conical wall everywhere and the leakproofness between the pipe fitting are the same, guarantee sealing member's whole leakproofness.

5. The bevel angle of the first conical wall is 10 degrees, which is the same as the bevel angle of the conical port of the pipe fitting, and good sealing between the first conical wall and the pipe fitting is ensured. The oblique angle of the second conical wall is 20 degrees, and is the same as that of the locking ring, so that good sealing between the second conical wall and the locking ring is ensured.

6. The inner wall of the sealing component main body is in a cylindrical surface shape, so that the inner wall of the sealing component main body is tightly matched with the outer wall of the pipeline, the sealing area between the O-shaped sealing ring and the pipeline is greatly increased when the O-shaped sealing ring is sealed, and the condition of water leakage at the outer wall of the pipeline is avoided. Meanwhile, the inner wall of the sealing member main body is in large-area contact with the outer wall of the pipeline, so that the friction force is greatly increased, and the pressure-bearing capacity of the connection of the PVC/PP pipeline is greatly improved.

Because the oblique angle of the first conical wall of the sealing component main body is matched with the oblique angle of the conical port of the pipe fitting, the first conical wall and the pipe fitting are well sealed, and the condition that water leaks from the pipe fitting is avoided. The friction force is greatly increased due to the large-area contact between the first conical wall and the pipe fitting, so that the pressure-bearing capacity of the PVC/PP pipeline connection is greatly improved.

Because the oblique angle of the second conical wall of the sealing component main body is matched with the oblique angle of the locking ring, the second conical wall is in good contact with the locking ring. When the PVC/PP pipeline is assembled, the locking ring is pressed on the annular platform, and due to the fact that the second conical wall is matched with the locking ring in angle, the locking ring is firmly connected with the pipeline and the sealing member main body through threads under external force, and therefore the purpose of sealing and bearing at the pipe fitting interface is achieved.

Because the annular platform is arranged between the first conical wall and the second conical wall of the sealing component main body, when the inner wall of the locking ring is tightly sealed and pressed with the second conical wall, the end face of the locking ring can be tightly pressed with the annular platform, so that the locking ring can be tightly pressed with the sealing component main body, and the annular platform enables the bearing capacity of the sealing component to be correspondingly improved. The annular platform also improves the stability of the locking ring, and further improves the sealing performance and the bearing capacity of the sealing component. The junction of the first conical wall and the second conical wall is not provided with a sealing rib, so that the sealing performance between the locking ring and the second conical wall as well as between the pipe fitting and the first conical wall is ensured.

The advantages of the invention are not limited to the description, but rather are described in greater detail in the detailed description for better understanding.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the details set forth above, and that these and other objects that can be achieved with the present invention will be more clearly understood from the following detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a seal member;

FIG. 2 is a partial cross-sectional view of the sealing member;

FIG. 3 is a schematic view of the structure of the connecting device;

fig. 4 is a schematic view of the structure of the pipe.

In the figure: 1-a sealing member body; 2-contracting the locking cover; 3-a locking ring; 4-a pipe fitting; 5-a pipeline; 11-a first conical wall; 12-an annular platform; 13-a second conical wall; 14-internal sealing ribs; 15-external sealing ribs; 41-a tapered port; 51-mark line.

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 drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example 1:

as shown in fig. 1, the sealing member comprises a sealing member body 1, the inner wall of the sealing member body 1 is in the shape of a cylindrical surface, the outer wall of the sealing member body 1 comprises a first tapered wall 11, an annular platform 12 and a second tapered wall 13 which are sequentially arranged, the oblique angle of the first tapered wall 11 is the same as that of the tapered port of the pipe fitting, and the oblique angle of the second tapered wall 13 is the same as that of the inner wall of the locking ring. The width of the annular platform is 2 mm.

Because the annular platform 12 is arranged between the first conical wall 11 and the second conical wall 13 of the sealing component main body 1, when the inner wall of the locking ring 3 is tightly sealed and pressed with the second conical wall 13, the end face of the locking ring 3 can be tightly pressed with the annular platform 12, so that the locking ring 3 can be tightly pressed with the sealing component main body 1, and the annular platform 12 enables the bearing capacity of the sealing component to be correspondingly improved. The annular platform 12 also improves the stability of the locking ring 3, further improving the sealing performance and the bearing capacity of the sealing member. The junction of the first conical wall 11 and the second conical wall 13 is not provided with a sealing rib, so that the sealing performance between the locking ring 3 and the second conical wall 13 and between the pipe fitting 4 and the first conical wall 11 is ensured.

As shown in fig. 2, the inner wall of the sealing member body 1 is provided with an inner sealing rib 14. The inner sealing rib 14 is disposed at one-half position of the inner wall of the sealing member main body 1, and the diameter of the inner sealing rib 14 is 1 mm. Therefore, the sealing component main body 1 can be better pressed on the pipeline 5, the condition that the inner wall of the sealing component main body 1 forms a corrosion channel due to corrosion is avoided, and the sealing performance between the sealing component main body 1 and the pipeline 5 is ensured.

Two external sealing ribs 15 are arranged on the first conical wall 11. Two external sealing ribs 15 are provided at one-third and two-thirds of the first conical wall 11, respectively. The diameter of the external sealing rib is 1 mm.

Two external sealing ribs 15 are arranged on the first conical wall 11, so that the sealing component body 1 can be better compressed with the pipe fitting 4, the situation that the first conical wall 11 forms a corrosion channel due to corrosion is avoided, and the sealing performance between the first conical wall 11 and the pipe fitting 4 is ensured. Two external sealing ribs 15 on the first conical wall 11 are respectively arranged at one third and two thirds of the first conical wall 11, so that the two external sealing ribs 15 can be uniformly stressed on the pipe fitting 4, the sealing property between each part of the first conical wall 11 and the pipe fitting 4 is ensured to be the same, and the integral sealing property of the sealing component is ensured.

The bevel angle of said first conical wall 11 is 10 deg., which is the same as the bevel angle of the conical port 41 of the tube 4, ensuring a good seal between the first conical wall 11 and the tube 4. The oblique angle of the second conical wall is 20 degrees, the oblique angle is the same as that of the locking ring 3, good sealing and pressing between the second conical wall 13 and the locking ring 3 are guaranteed, the stability of the locking ring 3 is guaranteed, and the bearing capacity of the sealing member is correspondingly improved.

Example 2:

as shown in fig. 3, a connecting device for connecting pipelines comprises a retractable locking cover 2, a locking ring 3, a sealing member and a pipe fitting 4, wherein the retractable locking cover 2 and the sealing member are sequentially sleeved on a pipeline 5; the sealing component comprises a sealing component main body 1, the inner wall of the sealing component main body 1 is in a cylindrical surface shape, the outer wall of the sealing component main body 1 comprises a first conical wall 11, an annular platform 12 and a second conical wall 13 which are sequentially arranged, and the inner wall of the pipe fitting 4 is provided with a conical port 41; one end of the locking ring 3 is overlapped on the annular platform 12, the first tapered wall 11 is contacted with the tapered port 41 of the pipe 4, the second tapered wall 13 is contacted with the locking ring 3, the oblique angle of the first tapered wall 11 is the same as that of the tapered port 41 of the pipe 4, and the oblique angle of the second tapered wall 13 is the same as that of the inner wall of the locking ring 3.

The inner wall of the sealing component main body 1 is a cylindrical surface, so that the inner wall of the sealing component main body 1 is tightly matched with the outer wall of the pipeline 5, the sealing area between the O-shaped sealing ring and the pipeline 5 is greatly increased when the O-shaped sealing ring is sealed, and the condition of water leakage at the outer wall of the pipeline 5 is avoided. Meanwhile, the inner wall of the sealing member main body 1 is in large-area contact with the outer wall of the pipeline 5, so that the friction force is greatly increased, and the pressure-bearing capacity of the connection of the PVC/PP pipeline is greatly improved.

Since the oblique angle of the first tapered wall 11 of the sealing member body 1 is matched with the oblique angle of the tapered port 41 of the pipe 4, the first tapered wall 11 and the pipe 4 are well sealed, and the condition of water leakage at the pipe 4 is avoided. The friction force is greatly increased when the first conical wall 11 is in large-area contact with the pipe fitting 4, so that the pressure-bearing capacity of the PVC/PP pipeline connection is greatly improved.

Since the bevel angle of the second conical wall 13 of the sealing member body 1 is adapted to the bevel angle of the locking ring 3, there is good contact between the second conical wall 13 and the locking ring 3. When assembling the PVC/PP pipeline, the locking ring 3 is pressed on the annular platform 12, and due to the angle adaptation of the second conical wall 13 and the locking ring 3, the locking ring 3 is firmly connected with the pipeline 5 and the sealing member main body 1 through threads under external force, so that the purpose of sealing and bearing the interface of the pipe fitting 4 is achieved.

An inner sealing rib 14 is arranged on the inner wall of the sealing component main body 1, and the inner sealing rib 14 is tightly pressed on the outer wall of the pipeline 5. The inner sealing rib 14 is disposed at one-half position of the inner wall of the sealing member main body 1, and the diameter of the inner sealing rib 14 is 1 mm. Therefore, the sealing component main body 1 can be better pressed on the pipeline 5, the condition that the inner wall of the sealing component main body 1 forms a corrosion channel due to corrosion is avoided, and the sealing performance between the sealing component main body 1 and the pipeline 5 is ensured.

The first conical wall 11 is provided with two external sealing ribs 15, and the external sealing ribs 15 are pressed on the conical port 41 of the pipe fitting 4. Therefore, the sealing component body 1 can be better pressed with the pipe fitting 4, the condition that the first conical wall 11 forms a corrosion channel due to corrosion is avoided, and the sealing performance between the first conical wall 11 and the pipe fitting 4 is ensured. Two external sealing ribs 15 on the first conical wall 11 are respectively arranged at one third and two thirds of the first conical wall 11, so that the two external sealing ribs 15 can be uniformly stressed on the pipe fitting 4, the sealing property between each part of the first conical wall 11 and the pipe fitting 4 is ensured to be the same, and the integral sealing property of the sealing component is ensured.

The working principle is as follows:

as shown in fig. 3 and 4, the distance between the tapered end 41 and the end of the pipe 4 is measured in the pipe 4, and a mark line 51 is drawn at the same distance from the end of the pipe 5. The retractable locking cover 2, the locking ring 3 and the sealing component are sequentially sleeved at one end of the pipeline 5, and the installation position of the sealing component does not exceed the marking line on the pipeline 5. When the sealing member is installed, the first conical wall 11 of the sealing member body 1 faces the end part of the pipeline, and the tooth-shaped open end of the locking ring 3 faces the shrinkage locking cover 2.

The end of the pipe 5 is inserted into the pipe 4, the first tapered wall 11 of the sealing member body 1 is pressed against the tapered end 41 of the pipe 4, and the locking ring 3 is pressed against the second tapered wall 13 of the sealing member body 1. When the locking cover 2 is screwed and contracted, the end face of the locking ring 3 is pressed against the annular platform 12 of the sealing member body 1, and the external sealing rib 15 on the first conical wall 11 is pressed against the conical port 41 of the pipe fitting 4, so that the sealing performance of the sealing member is improved. The locking ring 3 can be reliably pressed with the sealing component body 1, and the annular platform 12 enables the sealing performance and the bearing capacity of the sealing component to be correspondingly improved.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims

1. A seal member for pipe connections, characterized by: the sealing structure comprises a sealing component main body (1), wherein the inner wall of the sealing component main body (1) is in a cylindrical surface shape, the outer wall of the sealing component main body (1) comprises a first conical wall (11), an annular platform (12) and a second conical wall (13) which are sequentially arranged, the oblique angle of the first conical wall (11) is the same as that of a conical port (41) of a pipe fitting (4), and the oblique angle of the second conical wall (13) is the same as that of the inner wall of a locking ring (3).

2. A seal member for pipe connections according to claim 1, wherein: an inner sealing rib (14) is arranged on the inner wall of the sealing component main body (1).

3. A seal member for pipe connections according to claim 1, wherein: the first conical wall (11) is provided with a plurality of external sealing ribs (15).

4. A seal member for pipe connections according to claim 3, wherein: the number of the external sealing ribs (15) on the first conical wall (11) is two, and the two external sealing ribs (15) are respectively arranged at one third and two thirds of the first conical wall (11).

5. A sealing member for pipe connection according to any one of claims 1 to 4, wherein: the bevel angle of the first conical wall (11) is 10 degrees, and the bevel angle of the second conical wall (13) is 20 degrees.

6. A coupling device for pipe connections, characterized by: the pipe fitting comprises a contraction locking cover (2), a locking ring (3), a sealing component and a pipe fitting (4), wherein the contraction locking cover (2), the locking ring (3) and the sealing component are sequentially sleeved on a pipeline (5); the sealing component comprises a sealing component main body (1), the inner wall of the sealing component main body (1) is in a cylindrical surface shape, the outer wall of the sealing component main body (1) comprises a first conical wall (11), an annular platform (12) and a second conical wall (13) which are sequentially arranged, and a conical port (41) is formed in the inner wall of the pipe fitting (4); one end of the locking ring (3) is overlapped on the annular platform (12), the first conical wall (11) is in contact with a conical port (41) of the pipe fitting (4), the second conical wall (13) is in contact with the locking ring (3), the oblique angle of the first conical wall (11) is the same as that of the conical port (41) of the pipe fitting (4), and the oblique angle of the second conical wall (13) is the same as that of the inner wall of the locking ring (3).

7. A coupling device for pipe connections according to claim 6, wherein: an inner sealing rib (14) is arranged on the inner wall of the sealing component main body (1), and the inner sealing rib (14) is tightly pressed on the outer wall of the pipeline (5).

8. A coupling device for pipe connections according to claim 6, wherein: the first conical wall (11) is provided with a plurality of external sealing ribs (15), and the external sealing ribs (15) are tightly pressed on the conical port (41) of the pipe fitting (4).

9. A coupling device for pipe connections according to claim 8, wherein: the number of the external sealing ribs (15) on the first conical wall (11) is two, and the two external sealing ribs (15) are respectively arranged at one third and two thirds of the first conical wall (11).

10. A coupling device for pipe coupling according to any one of claims 6 to 9, wherein: the bevel angle of the first conical wall (11) is 10 degrees, and the bevel angle of the second conical wall (13) is 20 degrees.