Quick connecting structure of detachable FRP pipeline

Abstract

The utility model discloses a detachable FRP pipeline quick connecting structure, including the pipe clamp for clamping pipeline, install the sealing ring in pipe clamp, hollow groove is established in sealing ring inside, and the both sides of hollow groove lower extreme are equipped with first pressure resistance area and second pressure resistance area respectively. The pipeline is full of medium, and the internal pressure will improve, and the first pressure resistance area and the second pressure resistance area of sealing ring will contact in the outer wall of pipeline, and the internal pressure will continue to contact the sealing ring of pipeline contact surface (in the allowable range of hollow groove, and the first pressure resistance area and the second pressure resistance area produce deformation); the more, the sealing ring is pressed with pipeline and pipe clamp, and the better sealing effect. The pipe clamp structure is reasonable in design, and the performance is reliable. The pipe clamp has the performance such as leakage prevention and corrosion prevention, and the operating resistance is small, and the quality is light, and the installation is easy to detach, and the labor intensity is reduced simultaneously, and the efficiency is improved, and the need of convenient removal and replacement pipeline is adapted.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline installation technology, specifically relating to a detachable FRP pipeline quick connection structure. Background Technology

[0002] FRP pipe is short for Fiber Reinforced Polymer pipe, also commonly known as fiberglass pipe. It is a high-performance composite material pipe made of synthetic resin (such as epoxy resin) and reinforcing fibers (such as glass fiber and carbon fiber) through processes such as winding and pultrusion.

[0003] Traditional FRP piping systems mostly use flange connections or adhesive bonding processes, which have the following drawbacks: Installation is complex: it requires bolt tightening or curing time, resulting in a long construction period; Non-reusable: disassembly of pipe fittings is easily damaged, making it difficult to adapt to temporary or dynamic working conditions; Limited sealing performance: Flange connections are prone to leakage in negative pressure or corrosive media. Utility Model Content

[0004] The purpose of this invention is to provide a detachable FRP pipe quick connection structure to solve the sealing connection problem in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A detachable FRP pipe quick connection structure includes a pipe clamp for clamping the pipe, a sealing ring installed inside the pipe clamp, a hollow groove inside the sealing ring, and a first pressure-resistant zone and a second pressure-resistant zone respectively provided on both sides of the lower end of the hollow groove.

[0006] Preferably, the pipe clamps are semi-circular and used in pairs, and the sealing rings are either semi-circular or annular in structure. The semi-circular sealing rings solve the sealing problem of the split pipe clamps. The use of annular sealing rings also requires compatibility with annular pipe clamps. The specific material is selected based on the actual usage characteristics.

[0007] Preferably, the pipe clamp has mounting seats at both ends, with positioning holes through the surface of the mounting seats and stepped platforms on the surface of the mounting seats. During installation, the two pipe clamps are located on the outer wall of the pipe. Bolts are passed through the positioning holes on the mounting seats and tightened to fix the two pipe clamps to the pipe. The stepped platforms provide additional space for pre-tightening force, meaning that when the two pipe clamps are in contact with each other, there is still extra space between the two stepped platforms for the bolts to be tightened, further improving the stability of the pipe clamp locking performance.

[0008] Preferably, the inner wall of the pipe clamp has a built-in groove, and the sealing ring fits snugly into the built-in groove. The sealing ring can be precisely embedded in the built-in groove, forming a tight fit, effectively enhancing the sealing effect and preventing leakage of the medium inside the pipe. The snug fit design ensures the stable installation of the sealing ring on the inner wall of the pipe clamp, preventing displacement or detachment. Even when the pipeline is affected by external factors such as vibration and pressure changes, the sealing ring can remain in the correct position, maintaining a good sealing state and extending the service life of the sealing ring and the entire pipe clamp. The built-in groove provides a clear installation position for the sealing ring, allowing installers to quickly and accurately embed the sealing ring, simplifying the installation process and improving installation efficiency.

[0009] Preferably, the built-in groove has a trapezoidal structure, narrower at the inside and wider at the outside. This trapezoidal structure provides better locking for the sealing ring. During installation, the sealing ring slides more easily along the trapezoidal slope and is secured to the narrower inner side. Once installed, the sealing ring is tightly confined within the trapezoidal groove, preventing loosening. When there is pressure in the pipeline, the hollow groove inside the sealing ring further compresses the slope of the trapezoidal groove (first and second pressure-resistant areas), generating greater friction and sealing force, effectively preventing media leakage and significantly improving the reliability and durability of the seal. Under low pressure, the trapezoidal groove's fixing effect on the sealing ring ensures basic sealing requirements; as the pressure increases, the sealing ring contacts the trapezoidal groove more tightly under pressure, enhancing sealing performance and meeting sealing needs under different pressure conditions. Because the built-in groove pre-sealing ring structure fits each other, the sealing ring is also trapezoidal in shape. However, its relevant dimensions are slightly different from those of the rubber sealing ring. This ensures that when the pipe clamp is tightened, the two sides of the sealing ring cross section are widened. In this way, even if the two pipe ends are not tightly sealed, the pressure of the medium inside the pipe can press the rubber sealing ring tightly against the flange and pipe clamp wall, thus playing a self-sealing role.

[0010] Preferably, the built-in groove has stepped layers on both sides, and the outer wall of the pipe has protrusions that cooperate with the stepped layers. When the pipe is filled with a medium, the internal pressure increases, and the first and second pressure-resistant areas of the sealing ring contact the protruding parts of the pipe's outer wall, further improving the contact sealing effect. Simultaneously, the protrusions and stepped layers allow the pipe to engage within the pipe clamp, further stabilizing the stability of the pipe clamp and the pipe.

[0011] The technical solution of this utility model has the following beneficial effects: 1. When the pipeline is filled with medium, the internal pressure will increase. The first and second pressure-resistant zones of the sealing ring will contact the outer wall of the pipeline. The internal pressure will continue to press the sealing ring against the pipeline contact surface (within the allowable range of the hollow groove, the first and second pressure-resistant zones will deform). The greater the internal pressure, the tighter the sealing ring is pressed against the pipeline and pipe clamp, and the better the sealing effect.

[0012] 2. The pipe clamp has a reasonable structural design and reliable performance. The pipe clamp has anti-leakage and anti-corrosion properties, and has low operating resistance, is lightweight, and is easy to disassemble and install. At the same time, it reduces labor intensity, improves efficiency, and meets the needs of conveniently moving and replacing pipelines. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the pipe clamp structure of this utility model.

[0016] Figure 3 This is a partial cross-sectional view of the pipe clamp of this utility model.

[0017] Figure 4 This is an overall internal cross-sectional view of the present invention.

[0018] Figure 5 This is an enlarged view of section A of this utility model.

[0019] Figure 6 This is a disassembled assembly diagram of the sealing ring of this utility model.

[0020] Reference numerals: 10, pipe clamp; 101, mounting base; 102, positioning hole; 103, internal groove; 104, stepped layer; 105, stepped platform; 20, sealing ring; 201, hollow groove; 202, first pressure-resistant zone; 203, second pressure-resistant zone; 30, pipe; 301, protrusion. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0022] Example 1: refer to Figures 1-6 A detachable FRP pipe quick connection structure includes a pipe clamp 10 for clamping the pipe 30, a sealing ring 20 installed inside the pipe clamp 10, a hollow groove 201 inside the sealing ring 20, and a first pressure-resistant area 202 and a second pressure-resistant area 203 respectively provided on both sides of the lower end of the hollow groove 201.

[0023] In this embodiment, when the pipe 30 is filled with medium, the internal pressure increases. The first pressure-resistant zone 202 and the second pressure-resistant zone 203 of the sealing ring 20 will contact the outer wall of the pipe 30. The internal pressure will further press the sealing ring 20 against the contact surface of the pipe 30 (within the allowable range of the hollow groove 201, the first pressure-resistant zone 202 and the second pressure-resistant zone 203 will deform). The greater the internal pressure, the tighter the sealing ring 20 is pressed against the pipe 30 and the pipe clamp 10, and the better the sealing effect. As long as the pressure of the medium inside the pipe does not exceed the permissible conditions of the strength and rigidity of the sealing ring 20, the pipe 30, and the pipe clamp 10, the seal will not fail. Therefore, the sealing form of the pipe clamp 10 is different from the form of sealing that relies on pre-tightening force, but is a reliable form that relies on the medium pressure to seal itself.

[0024] In this embodiment, optionally, the sealing ring 20 is made of a compatible and sufficiently performing material, depending on the working medium, temperature range, and pressure conditions. The most common materials include nitrile rubber, fluororubber, and silicone rubber.

[0025] Preferably, the pipe clamps 10 are semi-circular and used in pairs, and the sealing rings 20 are selected to be semi-circular or annular in structure.

[0026] In this preferred embodiment, a semi-circular sealing ring 20 is preferably selected to solve the sealing problem of the split pipe clamp 10. The use of the annular sealing ring 20 also requires compatibility with the annular pipe clamp 10. The specific material is selected based on the actual usage characteristics.

[0027] Preferred reference Figure 1 and Figure 6 The pipe clamp 10 has mounting bases 101 at both ends, and the mounting base 101 has positioning holes 102 through its surface and a stepped platform 105 on its surface.

[0028] In this preferred embodiment, during installation, the two pipe clamps 10 are located on the outer wall of the pipe 30. The two pipe clamps 10 are fixed to the pipe 30 by tightening the bolts through the positioning holes 102 on the mounting base 101. The stepped platform 105 can provide additional space preload, that is, when the two pipe clamps 10 are in contact with each other, there is still extra space between the two stepped platforms 105 for the bolts to be tightened, which further improves the stability of the locking performance of the pipe clamps 10.

[0029] Preferably, the inner wall of the pipe clamp 10 is provided with a built-in groove 103, and the sealing ring 20 matches the built-in groove 103.

[0030] In this preferred embodiment, the sealing ring 20 can be precisely embedded in the built-in groove 103, forming a tight fit, effectively enhancing the sealing effect and preventing leakage of the medium inside the pipe. The mutually fitting design ensures that the sealing ring 20 is firmly installed on the inner wall of the pipe clamp 10, and is not prone to displacement or detachment. When the pipeline 30 is affected by external factors such as vibration and pressure changes, the sealing ring 20 can still remain in the correct position, maintaining a good sealing state and extending the service life of the sealing ring 20 and the entire pipe clamp 10. The built-in groove 103 provides a clear installation position for the sealing ring 20, allowing installers to quickly and accurately embed the sealing ring 20, simplifying the installation process and improving installation efficiency.

[0031] Preferably, the built-in groove 103 has a trapezoidal structure, which is narrow inside and wide outside.

[0032] In this preferred embodiment, the trapezoidal structure, narrower inside and wider outside, provides better locking for the sealing ring 20. During installation, the sealing ring 20 slides more easily along the trapezoidal slope and locks into the narrower inner side. Once installed, the sealing ring 20 is tightly constrained within the trapezoidal groove, preventing loosening. When there is pressure in the pipeline, the pressure, combined with the hollow groove 201 inside the sealing ring 20, causes the sealing ring 20 to further compress the slope of the trapezoidal groove (first pressure-resistant area 202 and second pressure-resistant area 203), generating greater friction and sealing force, thereby effectively preventing media leakage and greatly improving the reliability and durability of the seal. Under low pressure conditions, the fixing effect of the trapezoidal groove on the sealing ring 20 ensures basic sealing requirements; when the pressure increases, the contact between the sealing ring 20 and the trapezoidal groove becomes tighter under pressure, and the sealing performance is enhanced, meeting the sealing requirements under different pressure conditions. Because the pre-sealing ring 20 of the built-in groove 103 fits the structure of the sealing ring 20, the sealing ring 20 is also trapezoidal in shape. However, its relevant dimensions are slightly different from those of the rubber sealing ring. This ensures that when the pipe clamp is tightened, the two sides of the sealing ring 20 cross section are widened. In this way, even if the two pipe ends are not tightly sealed, the pressure of the medium inside the pipe can press the rubber sealing ring 20 against the flange and pipe clamp wall, thus playing a self-sealing role.

[0033] Preferably, the built-in groove 103 has stepped layers 104 on both sides, and the outer wall of the pipe 30 has protrusions 301, which cooperate with the stepped layers 104.

[0034] In this preferred embodiment, the cooperation between the protrusion 301 and the stepped layer 104 allows the pipe 30 to be filled with medium, increasing the internal pressure. This causes the first pressure-blocking area 202 and the second pressure-blocking area 203 of the sealing ring 20 to contact the protrusion 301 on the outer wall of the pipe 30, further improving the contact sealing effect. At the same time, the protrusion 301 and the stepped layer 104 enable the pipe 30 to engage within the pipe clamp 10, further stabilizing the stability of the pipe clamp 10 and the pipe 30.

[0035] In summary, in this embodiment, the pipe clamp 10 has a reasonable structural design and reliable performance. The pipe clamp 10 does have anti-leakage and anti-corrosion properties, and it has low operating resistance, is lightweight, and is easy to disassemble and install. At the same time, it reduces labor intensity, improves efficiency, and meets the needs of conveniently moving and replacing the pipe 30.

[0036] The above embodiments are merely exemplary models of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Various modifications or equivalent substitutions can be made to this utility model within its substance and scope of protection. Such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this utility model.

[0037] In the description of this utility model, it should be noted that the terms "inner," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the attached circle, or the orientation or positional relationship commonly used when the utility model product is in use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, these terms indicating orientation or positional relationship should not be construed as limitations on this utility model.

[0038] In the description of this utility model, it should be further noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, these terms can refer to a fixed connection, a detachable connection, or an integral connection between components; they can also refer to a mechanical connection or an electrical connection; or they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

Claims

1. A detachable FRP pipe quick-connect structure, characterized in that, Includes a pipe clamp (10) for clamping the pipe (30), a sealing ring (20) is installed inside the pipe clamp (10), a hollow groove (201) is provided inside the sealing ring (20), and a first pressure-resistant area (202) and a second pressure-resistant area (203) are respectively provided on both sides of the lower end of the hollow groove (201).

2. The detachable FRP pipe quick connection structure according to claim 1, characterized in that: The pipe clamps (10) are semi-arc-shaped and used in pairs, and the sealing rings (20) are selected to be semi-arc-shaped or annular structures.

3. The detachable FRP pipe quick connection structure according to claim 2, characterized in that: The pipe clamp (10) has mounting bases (101) at both ends, and the mounting base (101) has a positioning hole (102) through its surface, and a stepped platform (105) on its surface.

4. The detachable FRP pipe quick connection structure according to claim 1, characterized in that: The inner wall of the pipe clamp (10) is provided with an internal groove (103), and the sealing ring (20) matches the internal groove (103).

5. The detachable FRP pipe quick connection structure according to claim 4, characterized in that: The built-in groove (103) has a trapezoidal structure, which is narrow inside and wide outside.

6. The detachable FRP pipe quick connection structure according to claim 5, characterized in that: The built-in groove (103) has stepped layers (104) on both sides, and the outer wall of the pipe (30) has protrusions (301), which cooperate with the stepped layers (104).

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