Tongue-and-groove sealing structure of cement pipe

Abstract

The utility model provides a cement pipe tongue-and-groove sealing structure, which belongs to the technical field of cement pipes, and mainly comprises a connecting piece, a sealing ring, an auxiliary structural member, a flange plate and a bolt, the connecting piece is sleeved at the tongue-and-groove of the cement pipe, and the sealing ring is arranged between the connecting piece and the auxiliary structural member and is made of an elastic material; the groove of the auxiliary structural member is matched with the sealing ring to prevent the sealing ring from shifting; the flange plate is connected with the connecting piece through a bolt, and the positioning protrusion is used for abutting against the sealing ring and the auxiliary structural piece. During working, all the components are tightly attached through bolt connection, the sealing ring deforms under the action of pressure, gaps at the joint of rabbets and tongues of cement pipes are evenly filled, and the sealing function is achieved. The device is simple in structure, convenient to install and reliable in sealing performance, liquid or gas leakage can be effectively prevented, the stability of cement pipe connection is improved, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cement pipe technical field, concretely relates to a cement pipe tongue and groove sealing structure. BACKGROUND

[0002] In modern construction engineering and various pipeline laying engineering, as a common water conveying and drainage pipeline material, the sealing performance of cement pipe connection is crucial. The traditional cement pipe connection method mainly relies on the tongue and groove structure, and the sealing is realized by applying sealing glue or other sealing materials at the tongue and groove. However, this sealing method has many disadvantages: on the one hand, the sealing glue is prone to aging and cracking during long-term use, which leads to sealing failure, especially in the case of poor water quality or strong water flow impact, the sealing effect is difficult to maintain for a long time; on the other hand, the traditional tongue and groove connection has high installation precision requirement, if there is a slight deviation during installation, such as inaccurate pipe butt joint and uneven sealing material application, it will cause water leakage, water seepage and other problems, which not only affects the normal service life of the pipeline, but also may cause potential threat to the surrounding environment and building structure, increases the later maintenance cost and engineering hidden danger.

[0003] In order to solve the above problems and improve the sealing performance and installation reliability of cement pipe connection, the present application provides a cement pipe tongue and groove sealing structure, which optimizes the design of components and connection method, aims to overcome the defects of poor sealing effect, high installation requirement and easy failure in the prior art, and provides a more advanced, stable and easy-to-operate sealing solution for engineering practice, to adapt to the complex and changeable engineering environment and the increasing demand for high-quality pipeline connection. CONTENT OF THE UTILITY MODEL

[0004] The utility model provides a cement pipe tongue and groove sealing structure aiming at the problems in the prior art.

[0005] In order to achieve the above purpose, the technical scheme adopted by the present application is:

[0006] The utility model provides a cement pipe joint sealing structure, including connecting piece, sealing ring, auxiliary structural member, flange and bolt, the connecting piece is the tubular structure, is adapted to the end of cement pipe, is set in the cement pipe joint, the connecting piece periphery middle part is provided with annular convex, the connecting piece one end face is uniformly provided with first screw hole, the sealing ring is installed between connecting piece and auxiliary structural member, the auxiliary structural member is annular structure, and one side is provided with recess, and the recess size is same with sealing ring, the flange is disc -shaped annular structure, and the ring surface is uniformly distributed with second screw hole, the position of second screw hole corresponds with the position of first screw hole, and the diameter is matched with bolt, the flange is provided with positioning convex near auxiliary structural member, and the positioning convex size is adapted with the recess of auxiliary structural member, the bolt passes through the second screw hole on the flange and the first screw hole on the connecting piece, and the flange is connected together with the connecting piece.

[0007] As preferred, the annular convex is used for positioning installation boundary, and a certain pressure is borne to ensure the stability of the whole structure.

[0008] As preferred, the recess cooperates with the sealing ring to position the sealing ring, prevent displacement of the sealing ring during use, and ensure sealing effect.

[0009] As preferred, the positioning convex is used for clamping the auxiliary structural member and the sealing ring, ensures close contact of the sealing ring with the connecting piece, and ensures installation precision and sealing performance of the whole sealing structure.

[0010] As preferred, the sealing ring is made of elastic material, deforms when compressed, uniformly expands to all directions, tightly fills the gap at the joint of the cement pipe, and prevents liquid or gas from passing through.

[0011] Compared with the prior art, the utility model has the advantages and positive effects that:

[0012] The elastic sealing ring is deformed to fill the gap when the bolt is fastened, the recess of the auxiliary structural member is accurately matched with the sealing ring, the sealing ring is stably positioned during installation and use, the sealing property is effectively improved, and leakage is reduced.

[0013] The connecting piece is a key component set in the joint of the cement pipe, the tubular structure thereof provides basic support for the whole sealing system, the annular convex in the middle of the periphery not only determines the accurate installation boundary of other components during installation, but also bears the force from the internal pressure of the cement pipe and the external environment during use, and the design of the components facilitates installation, the screw holes are matched with the bolt connection, the installation process is relatively simple, and when the sealing ring is damaged during later maintenance, the bolt can be conveniently disassembled and replaced, thereby reducing maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the above and other technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor under the premise of the drawings.

[0015] Figure 1 For the explosion of the cement pipe joint sealing structure of the present application Figure 1 ;

[0016] Figure 2 For the explosion of the cement pipe joint sealing structure of the present application Figure 2 ;

[0017] Figure 3 For the side view of the cement pipe joint sealing structure of the present application;

[0018] Figure 4 For the front view of the cement pipe joint sealing structure of the present application;

[0019] In the above figures, 1, connecting piece; 101, annular protrusion; 102, first screw hole; 2, sealing ring; 3, auxiliary structural part; 301, groove; 4, flange plate; 401, second screw hole; 402, positioning protrusion; 5, bolt. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the above and other technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor under the premise of the drawings.

[0021] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0022] Embodiment 1, as Figures 1-4As shown, the cement pipe joint sealing structure comprises a connecting piece 1, a sealing ring 2, an auxiliary structural piece 3, a flange plate 4 and a bolt 5. The connecting piece 1 is a cylindrical structure, which is adapted to the end of the cement pipe, is sleeved on the joint of the cement pipe, seals and reinforces the adjacent two cement pipe joints, and is provided with an annular protrusion 101 at the middle of the periphery, which is used for positioning the installation boundary and can bear a certain pressure to ensure the stability of the whole structure. The connecting piece 1 is uniformly provided with a first screw hole 102 at one end face, which is used for cooperating with the bolt 5, connecting with other components, and tightly combining each component. The sealing ring 2 is made of elastic material, such as rubber, and is installed between the connecting piece 1 and the auxiliary structural piece 3. The auxiliary structural piece 3 is an annular structure, which is provided with a groove 301 on one side. The size of the groove 301 is the same as that of the sealing ring 2, which cooperates with the sealing ring 2 to position the sealing ring 2, prevents the displacement of the sealing ring 2 during use, and ensures the sealing effect. The flange plate 4 is a disc-shaped annular structure, which is uniformly provided with a second screw hole 401 on the annular surface to ensure the uniform distribution of force during connection. The position of the second screw hole 401 corresponds to the position of the first screw hole 102, and the diameter of the second screw hole 401 matches the diameter of the bolt 5. The flange plate 4 is provided with a positioning protrusion 402 on the side close to the auxiliary structural piece 3. The size of the positioning protrusion 402 is adapted to the size of the groove 301 of the auxiliary structural piece 3, which is used for tightly pressing the auxiliary structural piece 3 and the sealing ring 2, ensuring that the sealing ring 2 is tightly combined with the connecting piece 1, thereby ensuring the installation precision and sealing performance of the whole sealing structure. The bolt 5 penetrates the second screw hole 401 on the flange plate 4 and the first screw hole 102 on the connecting piece 1, connects the flange plate 4 and the connecting piece 1 together, and compresses the sealing ring 2 and the auxiliary structural piece 3 between the connecting piece 1 and the flange plate 4, so that the sealing ring 2 can be tightly combined with the joint of the cement pipe in the whole circumferential direction, thereby achieving good sealing effect.

[0023] The bolt 5 penetrates the second screw hole 401 on the flange plate 4 and the first screw hole 102 on the connecting piece 1 to connect the flange plate 4 and the connecting piece 1.

[0024] Working principle: first, the connecting piece 1 is set in the cement pipe joint, the annular protrusion 101 in the middle of the outer periphery can be used as a positioning reference to determine the boundary for subsequent component installation, the sealing ring 2 is installed at the predetermined position of the connecting piece 1, at this time, the groove 301 of the auxiliary structural part 3 plays a role, which is the same size as the sealing ring 2, accurately positions the sealing ring 2 in the groove, the flange plate 4 is close to the auxiliary structural part 3, the positioning protrusion 402 on the flange plate 4 is matched with the groove 301 of the auxiliary structural part 3, which can be quickly aligned during installation, ensuring that the relative position of the flange plate 4 and the auxiliary structural part 3 is accurate and correct, preparing for subsequent bolt 5 connection, the bolt 5 passes through the second screw hole 401 on the flange plate 4 and the first screw hole 102 on the connecting piece 1 in turn, in the process of tightening the bolt 5, the flange plate 4 gradually approaches the connecting piece 1, realizing the close connection of the two, with the continuous tightening of the bolt 5, the flange plate 4 exerts pressure on the auxiliary structural part 3, the auxiliary structural part 3 in turn transmits the pressure to the sealing ring 2, the sealing ring 2 deforms when subjected to pressure, the sealing ring 2 uniformly expands to the four directions, tightly fills the gap of the cement pipe joint, prevents liquid or gas from passing through, and realizes the sealing function.

[0025] The above is only a preferred embodiment of the present application, and does not limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technology content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application still belongs to the protection scope of the present application.

Claims

1. A tongue-and-groove sealing structure for cement pipes, characterized in that, Including connecting piece (1), sealing ring (2), auxiliary structural part (3), sealing ring (2) is installed between connecting piece (1) and auxiliary structural part (3), the auxiliary structural part (3) is annular structure, one side is provided with recess (301), the recess (301) is same with sealing ring (2), the recess (301) is positioned with sealing ring (2) cooperation.

2. A cement pipe joint sealing structure according to claim 1, wherein Connecting piece (1) is cylindrical structure, is adapted to the end of cement pipe, is set in the cement pipe joint, connecting piece (1) periphery middle part is provided with annular convex (101), connecting piece (1) one end face is uniformly provided with first screw hole (102).

3. A cement pipe joint sealing structure according to claim 1, wherein The side of the auxiliary structural part (3) is provided with a flange (4), the flange (4) is a disc-shaped annular structure, and the second screw hole (401) is uniformly distributed on the ring surface of the flange (4). The position of the second screw hole (401) corresponds to the position of the first screw hole (102) and matches the diameter of the bolt (5). The side of the flange (4) close to the auxiliary structural part (3) is provided with a positioning protrusion (402). The size of the positioning protrusion (402) is matched with the recess (301) of the auxiliary structural part (3).

4. A cement pipe joint sealing structure according to claim 3, wherein The bolt (5) passes through the second screw hole (401) on the flange (4) and the first screw hole (102) on the connecting piece (1), connecting the flange (4) and the connecting piece (1).

5. A cement pipe joint sealing structure according to claim 1, wherein The sealing ring (2) is made of elastic material.

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