Polymer plastic flange joint with built-in buffer protection layer

Abstract

The utility model discloses a built -in buffer protection layer's high molecule plastics flange joint, including flange joint main part, the side of flange joint main part far apart all is established with four sliding slots, the inside of flange joint main part far apart one end all are established with four clamping slots, every the clamping slot all with corresponding sliding slot is through. The utility model discloses, through setting buffer protection cover and support framework etc., support framework adopts high -strength engineering plastics injection moulding, its annular grid structure allows radial elastic deformation while maintaining pipeline rigidity, and the buffer protection cover of polyurethane rubber material can efficiently absorb the impact energy that fluid pressure fluctuation produces through resilience characteristics, especially for the instantaneous high pressure impact in water hammer effect, through the compression deformation of polyurethane rubber and the synergic damping effect of grid framework, will impact force gradually dissipate, reduce pipeline system vibration noise and prolong the service life of flange joint main part.

Description

Technical Field

[0001] This utility model relates to the field of plastic flange joint technology, and in particular to a polymer plastic flange joint with a built-in buffer protective layer. Background Technology

[0002] Plastic flanges are pipe connection components consisting of plastic pipe sections and flanges connected by bolts. They are mainly used in gas, water supply and liquid transportation systems. They are lightweight and cost-effective compared to metal flanges.

[0003] However, most existing plastic flange joints do not have a built-in buffer protection layer. When transporting water-based substances, they cannot effectively absorb the water hammer effect, which affects the service life of the flange joint. Therefore, a polymer plastic flange joint with a built-in buffer protection layer is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a polymer plastic flange joint with a built-in buffer protective layer.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a polymer plastic flange joint with a built-in buffer protective layer, comprising a flange joint body, four sliding grooves on the side of the flange joint body away from each other, and four retaining grooves inside the side of the flange joint body away from each other, each retaining groove communicating with the corresponding sliding groove. The flange joint body is provided with two fixing structures, and a buffer protective sleeve is slidably connected inside the flange joint body. A support frame is fixedly provided inside the buffer protective sleeve. Through the cooperation of the support frame and the buffer protective sleeve, the impact force is dissipated step by step, reducing the vibration and noise of the pipeline system and extending the service life of the flange joint body.

[0006] As a further description of the above technical solution:

[0007] The buffer sleeve is made of polyurethane rubber, and the support frame is a ring-shaped mesh structure. The support frame is injection molded from high-strength engineering plastic. Its ring-shaped mesh structure allows radial elastic deformation while maintaining the rigidity of the pipeline. The buffer sleeve made of polyurethane rubber can efficiently absorb the impact energy generated by fluid pressure fluctuations through its rebound characteristics.

[0008] As a further description of the above technical solution:

[0009] The fixed structure includes a snap ring movably connected inside the flange joint body. Four snap plates are fixedly connected to the outer side of the snap ring. Each snap plate is adapted to a corresponding slide groove and a slot. Rotating the snap ring causes the snap ring to drive the four snap plates to slide in the corresponding slots and align with the corresponding slide grooves.

[0010] As a further description of the above technical solution:

[0011] A sliding groove is provided on one side of the snap ring, and a compression ring is slidably connected inside the sliding groove. One side of the compression ring is in contact with the corresponding side of the buffer protective sleeve, and the buffer protective sleeve is compressed and fixed by the compression ring.

[0012] As a further description of the above technical solution:

[0013] Multiple compression springs are fixedly connected to one side of the sliding groove. The other end of each compression spring is fixedly connected to one side of the compression ring. When the snap-fit ​​plate coincides with the corresponding sliding groove, the snap-fit ​​ring is pushed out of the interior of the flange joint body under the elastic reset of the multiple compression springs.

[0014] As a further description of the above technical solution:

[0015] Two positioning holes are provided on the side of the flange joint body that is away from each other. A positioning pin is slidably connected inside each positioning hole. The positioning pin slides into the corresponding positioning hole to prevent the first sealing gasket from shifting.

[0016] As a further description of the above technical solution:

[0017] Two positioning pins located on the same side are fixedly connected to a first sealing gasket at one end. A buffer gasket is fixedly connected to one side of the first sealing gasket, and a second sealing gasket is fixedly connected to one side of the buffer gasket. Through the layering and combination of the first sealing gasket, the buffer gasket, and the second sealing gasket, both sealing and shock absorption can be achieved, thus improving durability.

[0018] This utility model has the following beneficial effects:

[0019] 1. Compared with existing technologies, this polymer plastic flange joint with built-in buffer protective layer, through the setting of buffer protective sleeve and support skeleton, the support skeleton is made of high-strength engineering plastic injection molding, and its ring grid structure allows radial elastic deformation while maintaining the rigidity of the pipeline. The buffer protective sleeve of polyurethane rubber material can efficiently absorb the impact energy generated by fluid pressure fluctuation through its rebound characteristics. Especially for the instantaneous high pressure impact in water hammer effect, the impact force is dissipated step by step through the synergistic damping effect of polyurethane rubber compression deformation and grid skeleton, reducing pipeline system vibration and noise and extending the service life of the flange joint body.

[0020] 2. Compared with existing technologies, this polymer plastic flange joint with built-in buffer protective layer uses a snap ring, snap plate, sliding groove, compression ring and compression spring. Rotating the snap ring causes the four snap plates to slide in the corresponding slots. When the snap plate coincides with the corresponding sliding groove, the snap ring is pushed out of the flange joint body by the elastic reset of multiple compression springs. Then the buffer protective sleeve can be removed, which makes it convenient for staff to replace the aging buffer protective sleeve. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of a polymer plastic flange joint with a built-in buffer protective layer proposed in this utility model;

[0022] Figure 2 A cross-sectional view of a polymer plastic flange joint with a built-in buffer protective layer proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the main body of a polymer plastic flange joint with a built-in buffer protective layer proposed in this utility model.

[0024] Figure 4 Exploded view of the buffer protective sleeve and support frame of a polymer plastic flange joint with built-in buffer protective layer proposed in this utility model;

[0025] Figure 5 This is a schematic diagram of the first sealing gasket and the buffer gasket of a polymer plastic flange joint with a built-in buffer protective layer proposed in this utility model;

[0026] Figure 6 Exploded view of the first sealing gasket and buffer gasket of a polymer plastic flange joint with built-in buffer protective layer proposed in this utility model;

[0027] Figure 7 This is a schematic diagram of the fixing structure of a polymer plastic flange joint with a built-in buffer protective layer proposed in this utility model;

[0028] Figure 8 An exploded view of the fixing structure of a polymer plastic flange joint with a built-in buffer protective layer proposed in this utility model.

[0029] Legend:

[0030] 1. Flange joint body; 2. Slide groove; 3. Slot; 4. Buffer protective sleeve; 5. Support frame; 6. Positioning hole; 7. Positioning pin; 8. First sealing gasket; 9. Buffer gasket; 10. Second sealing gasket; 11. Fixing structure; 111. Snap-fit ​​ring; 112. Snap-fit ​​plate; 113. Slide groove; 114. Compression ring; 115. Compression spring. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1 to 8 This utility model provides a polymer plastic flange joint with a built-in buffer protective layer: It includes a flange joint body 1. Four sliding grooves 2 are formed on each side of the flange joint body 1 away from each other. Four retaining grooves 3 are formed inside each end of the flange joint body 1 away from each other, each groove 3 communicating with a corresponding sliding groove 2. Two positioning holes 6 are formed on each side of the flange joint body 1 away from each other. A positioning pin 7 is slidably connected inside each positioning hole 6. One end of the two positioning pins 7 on the same side is fixedly connected to a first sealing gasket 8. The first sealing gasket 8... A buffer pad 9 is fixedly connected to one side, and a second sealing pad 10 is fixedly connected to one side of the buffer pad 9. Through the layering and combination of the first sealing pad 8, the buffer pad 9 and the second sealing pad 10, both sealing and shock absorption can be achieved, improving durability. At the same time, one side of the first sealing pad 10 is in contact with one side of the snap ring 111. When the flange joint body 1 is connected to the pipeline, the first sealing pad 10 limits the snap ring 111, preventing the snap ring 111 from rotating and coming out of the flange joint body 1 due to vibration. The flange joint body 1 is provided with two fixing structures 11.

[0033] To achieve the purpose of buffering, a buffer protective sleeve 4 is slidably connected inside the flange joint body 1. The buffer protective sleeve 4 is made of polyurethane rubber material, and a support skeleton 5 is fixedly installed inside the buffer protective sleeve 4. The support skeleton 5 is a ring grid structure and is injection molded from high-strength engineering plastic. Its ring grid structure allows radial elastic deformation while maintaining the rigidity of the pipeline. The buffer protective sleeve 4 made of polyurethane rubber material can efficiently absorb the impact energy generated by fluid pressure fluctuations through its rebound characteristics. Especially for the instantaneous high-pressure impact in the water hammer effect, the impact force is dissipated step by step through the synergistic damping effect of the compression deformation of polyurethane rubber and the grid skeleton, thereby reducing the vibration and noise of the pipeline system and extending the service life of the flange joint body 1.

[0034] To facilitate disassembly and assembly, the fixed structure 11 includes a snap-fit ​​ring 111 movably connected inside the flange joint body 1. Four snap-fit ​​plates 112 are fixedly connected to the outside of the snap-fit ​​ring 111. Each snap-fit ​​plate 112 is adapted to a corresponding slide groove 2 and a snap-fit ​​groove 3. A slide groove 113 is provided on one side of the snap-fit ​​ring 111. A compression ring 114 is slidably connected inside the slide groove 113. Multiple compression springs 115 are fixedly connected to one side of the slide groove 113. The other end of each compression spring 115 is fixedly connected to one side of the compression ring 114. One side of the compression ring 114 is in contact with the corresponding side of the buffer protective sleeve 4. When the snap-fit ​​ring 111 is rotated, the snap-fit ​​ring 111 drives the four snap-fit ​​plates 112 to slide in the corresponding snap-fit ​​groove 3. When the snap-fit ​​plate 112 coincides with the corresponding slide groove 2, under the elastic reset of the multiple compression springs 115, the snap-fit ​​ring 111 is pushed out of the flange joint body 1, and then the buffer protective sleeve 4 is removed, which is convenient for the staff to replace the aging buffer protective sleeve 4.

[0035] Working principle: The support frame 5 is injection molded from high-strength engineering plastic. Its ring grid structure allows radial elastic deformation while maintaining the rigidity of the pipeline. The buffer protective sleeve 4 made of polyurethane rubber material can efficiently absorb the impact energy generated by fluid pressure fluctuations through its rebound characteristics. Especially for the instantaneous high-pressure impact in the water hammer effect, the impact force is dissipated step by step through the synergistic damping effect of the compression deformation of polyurethane rubber and the grid frame, reducing the vibration and noise of the pipeline system and extending the service life of the flange joint body 1. Remove the first sealing gasket 8, and then rotate the snap ring 111. The snap ring 111 drives the four snap plates 112 to slide in the corresponding snap grooves 3. When the snap plate 112 coincides with the corresponding sliding groove 2, under the elastic reset of multiple compression springs 115, the snap ring 111 is pushed out of the interior of the flange joint body 1. Then the buffer protective sleeve 4 is removed, which makes it convenient for the staff to replace the aging buffer protective sleeve 4.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A polymer plastic flange joint with a built-in buffer protective layer, comprising a flange joint body (1), characterized in that: Four sliding grooves (2) are provided on the side of the flange joint body (1) that is far away from each other. Four slots (3) are provided inside the side of the flange joint body (1) that is far away from each other. Each slot (3) is connected to the corresponding sliding groove (2). Two fixing structures (11) are provided on the flange joint body (1). A buffer protective sleeve (4) is slidably connected inside the flange joint body (1). A support frame (5) is fixed inside the buffer protective sleeve (4).

2. The polymer plastic flange joint with a built-in buffer protective layer according to claim 1, characterized in that: The buffer protective sleeve (4) is made of polyurethane rubber material, and the support frame (5) is a ring mesh structure.

3. The polymer plastic flange joint with a built-in buffer protective layer according to claim 1, characterized in that: The fixed structure (11) includes a snap ring (111) movably connected inside the flange joint body (1). Four snap plates (112) are fixedly connected to the outside of the snap ring (111), and each snap plate (112) is adapted to the corresponding slide groove (2) and snap groove (3).

4. The polymer plastic flange joint with a built-in buffer protective layer according to claim 3, characterized in that: A sliding groove (113) is provided on one side of the snap ring (111), and a compression ring (114) is slidably connected inside the sliding groove (113). One side of the compression ring (114) is in contact with the corresponding side of the buffer protective sleeve (4).

5. A polymer plastic flange joint with a built-in buffer protective layer according to claim 4, characterized in that: A plurality of compression springs (115) are fixedly connected to one side of the inner side of the sliding groove (113), and the other end of each compression spring (115) is fixedly connected to one side of the compression ring (114).

6. A polymer plastic flange joint with a built-in buffer protective layer according to claim 1, characterized in that: Two positioning holes (6) are provided on the opposite side of the flange joint body (1), and a positioning pin (7) is slidably connected inside each positioning hole (6).

7. A polymer plastic flange joint with a built-in buffer protective layer according to claim 6, characterized in that: Two positioning pins (7) located on the same side are fixedly connected to a first sealing gasket (8) at one end. A buffer gasket (9) is fixedly connected to one side of the first sealing gasket (8). A second sealing gasket (10) is fixedly connected to one side of the buffer gasket (9).

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