CN221743472U - A telescopic connector for pipe connection - Google Patents

Abstract

The utility model discloses a telescopic connector for pipeline connection, wherein one end of a telescopic sleeve is sleeved outside a first connecting end, a first sealing gland and a first sealing ring are sleeved outside the first connecting end, the first sealing gland and the second connecting end are respectively positioned at two sides of a first sealing ring, and a first connecting assembly compresses the first sealing ring through the cooperation of the first sealing gland and the second sealing end; the installation component is located the connecting pipe and keeps away from telescopic tube one end, and second coupling assembling is through fixing in proper order second sealing washer, second gland, anti-skidding ring gear and locking ring and realize the anticreep sealing connection of outside pipeline. The anti-slip sealing connection with the pipeline is realized through the mounting assembly without welding a flange, and the axial expansion compensation and sealing are realized through the sleeve joint matching of the telescopic sleeve and the connecting pipe, so that the anti-slip flange connector and the pipeline telescopic joint are replaced, the cost is low, and the mounting is convenient.

Description

A telescopic connector for pipe connection

Technical Field

The utility model relates to the technical field of pipeline connection, in particular to a telescopic connector for pipeline connection.

Background Art

Pipelines are important infrastructures. In urban water supply, gas and petrochemical industries, pipelines are required to transport media. Pipes in the network will expand and contract due to temperature changes, and water hammer (water hammer is a phenomenon in which the pressure of the liquid rises and falls rapidly when the flow rate in the pressure pipe changes sharply due to some external reasons) and vibration will occur during the transportation process. Therefore, in order to prevent the connection between pipes and pipes, and the connection between pipes and pipe fittings from being disconnected or damaged due to thermal expansion and contraction and vibration during pipeline maintenance or laying,

At present, the market provides expansion joint products, which are connecting pipes used in pipeline systems. They have good expansion and contraction properties and can effectively alleviate the stress and deformation caused by temperature changes, vibrations and displacements in the pipeline system, reduce the risk of damage and leakage in the pipeline system, and ensure the safe and reliable operation of the pipeline system. However, the installation of expansion joint products is through flange connection. If you encounter pipes or working conditions that cannot weld flanges, the applicability of the expansion joint will be reduced, and the labor cost, construction intensity and construction time of welding flanges will be greatly increased.

Utility Model Content

In order to solve the technical problems existing in the background technology, the utility model provides a telescopic connector for pipeline connection.

The utility model provides a telescopic connector for pipe connection, comprising: a connecting pipe, a telescopic sleeve, a first sealing ring, a first sealing gland, a first connecting component, a mounting component and a second connecting component;

A first connection end is provided at one end of the connecting pipe, a second connection end is provided at one end of the telescopic sleeve and is sleeved outside the first connection end, a first sealing gland and a first sealing ring are sleeved outside the first connection end, and the first sealing gland and the second connection end are provided with pressing parts respectively located on both sides of the first sealing ring;

The first connection assembly includes a plurality of first connection rods, a first sealing gland is provided with a plurality of first mounting through holes distributed along the circumferential direction, each first connection rod passes through one of the first mounting through holes and is connected to the telescopic sleeve, a first locking nut is threadedly mounted on each first connection rod, the first locking nut is located at a side of the first sealing gland away from the telescopic sleeve, and the first sealing ring is pressed by the first sealing gland and the second sealing end;

The mounting assembly is located at the end of the connecting pipe away from the telescopic sleeve, and the mounting assembly includes a second sealing ring, a second sealing gland, an anti-slip gear ring and a locking ring arranged in sequence in a direction away from the connecting pipe, the second sealing ring abuts against the end of the connecting pipe away from the telescopic sleeve, a first flange portion is provided on the outer wall of the end of the connecting pipe away from the telescopic sleeve, and a second flange portion is provided on the outer wall of the locking ring;

The second connecting assembly includes multiple second connecting rods, the first flange part is provided with multiple second mounting through holes distributed along the circumferential direction, the second flange part is provided with multiple third mounting through holes distributed along the circumferential direction, each second connecting rod passes through one of the second mounting through holes and one of the third mounting through holes, and each second connecting rod is threadedly installed with a second locking nut, which is locked by the cooperation of the second connecting rod and the second locking nut so that the locking ring and the second sealing gland press the anti-slip gear ring and the second sealing gland and the end of the connecting pipe press the second sealing ring, and the inner wall of the anti-slip gear ring is provided with an anti-slip tooth portion.

Preferably, a guide flange is provided on the outer wall of the connecting pipe, the guide flange is located on the side of the first connecting end away from the telescopic sleeve, and a plurality of guide holes distributed along the circumferential direction are provided on the guide flange; the first connecting assembly also includes a plurality of guide rods, the guide rods pass through the guide holes and one end of the guide rods is connected to the telescopic sleeve, a first limit nut is threadedly installed on the guide rods, and the first limit nut is located on the side of the guide flange away from the telescopic sleeve.

Preferably, a second limiting nut is threadedly mounted on the guide rod, and the second limiting nut is located between the guide flange and the first sealing gland.

Preferably, a fourth mounting through hole is further provided on the first sealing gland, the guide rod passes through the fourth mounting through hole, and the second limiting nut presses the first sealing gland.

Preferably, the plurality of guide rods and the plurality of first connecting rods are alternately distributed along the circumferential direction.

Preferably, a first annular receiving groove for receiving the first sealing ring is provided on a side of the first sealing gland facing the telescopic sleeve.

Preferably, a second annular receiving groove for receiving the second sealing ring is provided at one end of the connecting pipe away from the telescopic sleeve.

Preferably, the anti-slip gear ring has a C-shaped ring structure.

Preferably, a connecting flange is provided at one end of the telescopic sleeve away from the connecting pipe, one end of the connecting rod is fixed to the connecting flange, and a reinforcing rib is provided on one side of the connecting flange close to the first sealing gland.

Preferably, an installation component and a second connection component for connecting the installation component are also provided at one end of the telescopic sleeve away from the connection pipe.

In the utility model, the proposed telescopic connector for pipe connection has one end of the telescopic sleeve sleeved on the outside of the first connection end, the first sealing gland and the first sealing ring sleeved on the outside of the first connection end, the first sealing gland and the second connection end are respectively located on both sides of the first sealing ring, and the first connection component presses the first sealing ring through the cooperation of the first sealing gland and the second sealing end; the installation component is located at the end of the connecting pipe away from the telescopic sleeve, and the second connecting component realizes the anti-slip sealing connection of the external pipe by fixing the second sealing ring, the second sealing gland, the anti-slip gear ring and the locking ring in sequence. The telescopic connector for pipe connection with the above-mentioned optimized design realizes the anti-slip sealing connection with the pipe through the installation component, without the need for welding flanges, and realizes axial telescopic compensation and sealing through the sleeve cooperation of the telescopic sleeve and the connecting pipe, thereby replacing the anti-slip flange connector and the pipe expansion joint, with low cost and convenient installation.

The connector of the utility model has the following advantages: 1. It has the advantage of quick installation of ordinary connectors and does not require flange welding. 2. After installation and operation, it has the function of an expansion joint, which can absorb the expansion and contraction deformation caused by the axial expansion and contraction of the pipe due to heat and cold, thereby avoiding damage to the pipeline; 3. It can reduce vibration and noise during the operation of the pipeline. 4. This product can completely replace the expansion joint, which is more convenient and efficient than the expansion joint.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of an embodiment of a telescopic connector for pipe connection proposed by the present invention.

FIG. 2 is an exploded schematic diagram of an embodiment of a telescopic connector for pipe connection proposed by the present invention.

FIG3 is a schematic diagram of the installation assembly matching of an embodiment of a telescopic connector for pipe connection proposed by the present invention.

FIG. 4 is a cross-sectional schematic diagram of a first connection component of an embodiment of a telescopic connector for pipe connection proposed by the present invention.

FIG. 5 is another cross-sectional schematic diagram of a first connection assembly of an embodiment of a telescopic connector for pipe connection proposed by the present invention.

DETAILED DESCRIPTION

As shown in Figures 1 to 5, Figure 1 is a structural schematic diagram of an embodiment of a telescopic connector for pipe connection proposed by the utility model, Figure 2 is an exploded schematic diagram of an embodiment of a telescopic connector for pipe connection proposed by the utility model, Figure 3 is a matching schematic diagram of an installation component of an embodiment of a telescopic connector for pipe connection proposed by the utility model, Figure 4 is a cross-sectional schematic diagram of a first connecting component of an embodiment of a telescopic connector for pipe connection proposed by the utility model, and Figure 5 is another cross-sectional schematic diagram of the first connecting component of an embodiment of a telescopic connector for pipe connection proposed by the utility model.

1 to 3 , the utility model provides a telescopic connector for pipe connection, comprising: a connecting pipe 1, a telescopic sleeve 2, a first sealing ring 3, a first sealing gland 4, a first connecting assembly, a mounting assembly, and a second connecting assembly;

A first connection end is provided at one end of the connecting pipe 1, a second connection end is provided at one end of the telescopic sleeve 2 and is sleeved outside the first connection end, a first sealing gland 4 and a first sealing ring 3 are sleeved outside the first connection end, and the first sealing gland 4 and the second connection end are provided with pressing parts respectively located on both sides of the first sealing ring 3;

The first connection assembly includes a plurality of first connection rods 5, a first sealing gland 4 is provided with a plurality of first mounting through holes distributed along the circumferential direction, each first connection rod 5 passes through one of the first mounting through holes and is connected to the telescopic sleeve 2, a first locking nut 10 is threadedly mounted on each first connection rod 5, the first locking nut 10 is located on the side of the first sealing gland 4 away from the telescopic sleeve 2, and the first sealing ring 3 is pressed by the first sealing gland 4 and the second sealing end;

The installation assembly is located at the end of the connecting pipe 1 away from the telescopic sleeve 2. The installation assembly includes a second sealing ring 6, a second sealing gland 7, an anti-slip gear ring 8 and a locking ring 9 which are arranged in sequence in a direction away from the connecting pipe 1. The second sealing ring 6 abuts against the end of the connecting pipe 1 away from the telescopic sleeve 2. The outer wall of the end of the connecting pipe 1 away from the telescopic sleeve 2 is provided with a first flange portion 101, and the outer wall of the locking ring 9 is provided with a second flange portion 901;

The second connecting assembly includes a plurality of second connecting rods 14, the first flange portion 101 is provided with a plurality of second mounting through holes distributed along the circumferential direction, the second flange portion 901 is provided with a plurality of third mounting through holes distributed along the circumferential direction, each second connecting rod 14 passes through one of the second mounting through holes and one of the third mounting through holes, a second locking nut 11 is threadedly mounted on each second connecting rod 14, and the second connecting rod 14 and the second locking nut 11 are locked together so that the locking ring 9 and the second sealing gland 7 press the anti-slip gear ring 8 and the second sealing gland 7 and the end of the connecting pipe 1 cooperate to press the second sealing ring 6, and the inner wall of the anti-slip gear ring 8 is provided with an anti-slip tooth portion.

During the specific installation process of the telescopic connector for pipe connection of this embodiment, the end of the connecting pipe away from the telescopic sleeve is sleeved on the outside of the pipe to be connected, so that the second sealing ring 6, the second sealing gland 7, the anti-slip gear ring 8 and the locking ring 9 are sequentially sleeved on the outside of the pipe to be connected, and by locking the two locking nuts, the locking ring presses the anti-slip gear ring, the second sealing gland and the second sealing ring to one end of the connecting pipe. Under the action of the second sealing gland and the locking ring, the anti-slip gear ring clamps the outer wall of the pipe to be connected through the anti-slip tooth portion, and at the same time, the second sealing ring is deformed under the pressing action of the second sealing gland and the end of the connecting pipe from both sides, and seals with the outer wall of the pipe to be connected.

When the pipeline expands and contracts due to thermal expansion and contraction during use, relative movement occurs between the telescopic sleeve and the connecting pipe. Under the action of the first locking nut, the first sealing gland and the first sealing ring are connected to the telescopic sleeve as a whole, and the sealing fit between the connecting pipe and the telescopic sleeve is ensured by the first sealing ring.

In this embodiment, the proposed telescopic connector for pipe connection has one end of the telescopic sleeve sleeved on the outside of the first connection end, the first sealing gland and the first sealing ring sleeved on the outside of the first connection end, the first sealing gland and the second connection end are respectively located on both sides of the first sealing ring, and the first connection component presses the first sealing ring through the cooperation of the first sealing gland and the second sealing end; the installation component is located at the end of the connecting pipe away from the telescopic sleeve, and the second connecting component realizes the anti-slip sealing connection of the external pipe by fixing the second sealing ring, the second sealing gland, the anti-slip gear ring and the locking ring in sequence. The telescopic connector for pipe connection with the above-mentioned optimized design realizes the anti-slip sealing connection with the pipe through the installation component, and realizes the axial telescopic compensation and sealing through the sleeve cooperation of the telescopic sleeve and the connecting pipe, thereby replacing the anti-slip flange connector and the pipe expansion joint, with low cost and convenient installation.

In a specific embodiment, a guide flange 12 is provided on the outer wall of the connecting pipe 1, and the guide flange 12 is located on the side of the first connecting end away from the telescopic sleeve 2, and a plurality of guide holes distributed along the circumferential direction are provided on the guide flange 12; the first connecting assembly also includes a plurality of guide rods 13, and the guide rods 13 pass through the guide holes and one end of the guide rods 13 is connected to the telescopic sleeve 2, and a first limiting nut 16 is threadedly installed on the guide rods 13, and the first limiting nut 16 is located on the side of the guide flange 12 away from the telescopic sleeve 2. By providing the guide rods and the limiting nuts on the guide rods, the telescopic compensation range between the telescopic sleeve and the connecting pipe is limited.

Furthermore, a second limiting nut 17 is threadedly mounted on the guide rod 13, and the second limiting nut 17 is located between the guide flange 12 and the first sealing gland 4. The second limiting nut limits the telescopic compensation range between the telescopic sleeve and the connecting pipe in another direction.

In a specific design, a plurality of guide rods 13 and a plurality of first connecting rods 5 are alternately distributed along the circumferential direction.

In a further specific embodiment, a fourth mounting through hole is further provided on the first sealing gland 4, the guide rod 13 passes through the fourth mounting through hole, and the second limiting nut 17 presses the first sealing gland 4. The second limiting nut cooperates with the first locking nut to ensure that the first sealing gland presses the first sealing ring.

4 and 5, in other specific embodiments, in order to ensure the sealing reliability, the first sealing gland 4 is provided with a first annular receiving groove for accommodating the first sealing ring 3 on the side facing the telescopic sleeve 2. Correspondingly, the connecting pipe 1 is provided with a second annular receiving groove for accommodating the second sealing ring 6 on the end away from the telescopic sleeve 2.

In the specific design of the anti-skid gear ring, the anti-skid gear ring 8 has a C-shaped ring structure, and the opening on the anti-skid gear ring provides a reduced diameter space to ensure the anti-slip clamping of the connecting pipe under the cooperation of the locking ring and the second sealing cover bracket.

In a connection mode where the telescopic sleeve is away from one end of the connecting pipe, a connecting flange 15 is provided at one end of the telescopic sleeve 2 away from the connecting pipe 1, one end of the first connecting rod 5 is fixed to the connecting flange 15, and a reinforcing rib is provided on one side of the connecting flange 15 close to the first sealing gland 4. The telescopic sleeve can be connected to an external pipeline through the connecting flange, and can be used to connect gate valves, flow meters, water meters and other equipment, all of which are flange-connected.

In another connection mode, the end of the telescopic sleeve 2 away from the connecting pipe 1 is also provided with a mounting assembly and a second connecting assembly for connecting the mounting assembly. The telescopic pipe can also be connected to the external pipe through an anti-slip structure, similar to the other end of the connecting pipe.

The connector of this embodiment has the following advantages: 1. It has the advantage of quick installation of ordinary connectors, and no welding flange is required. 2. After installation and operation, it has the function of expansion joint, which can absorb the expansion and contraction deformation caused by the axial expansion and contraction of the pipe due to heat, thereby avoiding damage to the pipeline; 3. It can reduce vibration and noise during the operation of the pipeline. 4. This product can completely replace the expansion joint, which is more convenient and efficient than the expansion joint. 5. It effectively reduces the installation cost and construction difficulty. 6. It reduces the risk of leakage in the later stage caused by too many connections of pipe fittings.

The above description is only a preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present utility model according to the technical scheme and utility model concept of the present utility model, which should be covered by the protection scope of the present utility model.

Claims (10)

1. A telescopic connector for pipe connection, characterized in that it comprises: a connecting pipe (1), a telescopic sleeve (2), a first sealing ring (3), a first sealing gland (4), a first connecting component, a mounting component and a second connecting component; A first connection end is provided at one end of the connecting pipe (1), a second connection end sleeved outside the first connection end is provided at one end of the telescopic sleeve (2), a first sealing gland (4) and a first sealing ring (3) are sleeved outside the first connection end, and the first sealing gland (4) and the second connection end are provided with pressing parts respectively located on both sides of the first sealing ring (3); The first connection assembly comprises a plurality of first connection rods (5), a first sealing gland (4) is provided with a plurality of first installation through holes distributed along the circumferential direction, each first connection rod (5) passes through one of the first installation through holes and is connected to the telescopic sleeve (2), a first locking nut (10) is threadedly mounted on each first connection rod (5), the first locking nut (10) is located on a side of the first sealing gland (4) away from the telescopic sleeve (2), and the first sealing ring (3) is pressed tightly by the first sealing gland (4) and the second sealing end; The mounting assembly is located at the end of the connecting pipe (1) away from the telescopic sleeve (2), and comprises a second sealing ring (6), a second sealing gland (7), an anti-slip gear ring (8) and a locking ring (9) arranged in sequence in a direction away from the connecting pipe (1), the second sealing ring (6) abuts against the end of the connecting pipe (1) away from the telescopic sleeve (2), the outer wall of the end of the connecting pipe (1) away from the telescopic sleeve (2) is provided with a first flange portion (101), and the outer wall of the locking ring (9) is provided with a second flange portion (901); The second connecting assembly includes a plurality of second connecting rods (14), the first flange portion (101) is provided with a plurality of second mounting through holes distributed along the circumferential direction, the second flange portion (901) is provided with a plurality of third mounting through holes distributed along the circumferential direction, each second connecting rod (14) passes through one of the second mounting through holes and one of the third mounting through holes, a second locking nut (11) is threadedly mounted on each second connecting rod (14), and the second connecting rod (14) and the second locking nut (11) are locked together so that the locking ring (9) and the second sealing gland (7) press the anti-slip gear ring (8) and the second sealing gland (7) and the end of the connecting pipe (1) press the second sealing ring (6), and the inner wall of the anti-slip gear ring (8) is provided with an anti-slip tooth portion. 2. The telescopic connector for pipe connection according to claim 1 is characterized in that a guide flange (12) is provided on the outer wall of the connecting pipe (1), the guide flange (12) is located on the side of the first connecting end away from the telescopic sleeve (2), and a plurality of guide holes distributed along the circumferential direction are provided on the guide flange (12); the first connecting component also includes a plurality of guide rods (13), the guide rods (13) pass through the guide holes and one end is connected to the telescopic sleeve (2), a first limiting nut (16) is threadedly installed on the guide rods (13), and the first limiting nut (16) is located on the side of the guide flange (12) away from the telescopic sleeve (2). 3. The telescopic connector for pipe connection according to claim 2 is characterized in that a second limiting nut (17) is threadedly mounted on the guide rod (13), and the second limiting nut (17) is located between the guide flange (12) and the first sealing cover (4). 4. The telescopic connector for pipe connection according to claim 3 is characterized in that a fourth mounting through hole is also provided on the first sealing cover (4), the guide rod (13) passes through the fourth mounting through hole, and the second limiting nut (17) presses the first sealing cover (4). 5. The telescopic connector for pipe connection according to claim 2 or 4, characterized in that a plurality of guide rods (13) and a plurality of first connecting rods (5) are alternately distributed along the circumferential direction. 6. The telescopic connector for pipe connection according to claim 1, characterized in that a first annular receiving groove for receiving the first sealing ring (3) is provided on the side of the first sealing gland (4) facing the telescopic sleeve (2). 7. The telescopic connector for pipe connection according to claim 1, characterized in that a second annular receiving groove for receiving a second sealing ring (6) is provided at one end of the connecting pipe (1) away from the telescopic sleeve (2). 8. The telescopic connector for pipe connection according to claim 1, characterized in that the anti-slip gear ring (8) has a C-shaped ring structure. 9. The telescopic connector for pipe connection according to claim 1 is characterized in that a connecting flange (15) is provided at one end of the telescopic sleeve (2) away from the connecting pipe (1), one end of the first connecting rod (5) is fixed to the connecting flange (15), and a reinforcing rib is provided on one side of the connecting flange (15) close to the first sealing cover (4). 10. The telescopic connector for pipe connection according to claim 1, characterized in that an end of the telescopic sleeve (2) away from the connecting pipe (1) is also provided with a mounting assembly and a second connecting assembly for connecting the mounting assembly.