Plastic pipe fitting with sealing accessory
By introducing sealing accessories into plastic pipe fittings, including seals, extension tubes, and elastic support rods, the leakage problem caused by seal aging is solved, enabling multiple sealing and automatic compensation, thus improving the reliability and safety of the seal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI AIQING MINING MASCH EQUIP CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-12
AI Technical Summary
The seals at the joints of existing plastic pipes are prone to detachment after aging, leading to leakage. They cannot be quickly resealed, affecting their use.
A plastic pipe fitting with sealing accessories has been designed, including a seal, an extension pipe, a device ring, an elastic support rod, and a multi-layer corrugated structure. It maintains the seal by automatically compensating for pressure and adds irregular sealing structures for multiple seals to prevent leakage.
It effectively prevents leakage at the seal, improves the sealing safety level, avoids leakage problems caused by the detachment of the sealing structure, and ensures the reliability of the seal during long-term use.
Smart Images
Figure CN224229525U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic pipe sealing technology, specifically to a plastic pipe fitting with a sealing accessory. Background Technology
[0002] Plastic pipes are generally made from synthetic resins, specifically polyester, with the addition of stabilizers, lubricants, and plasticizers, through extrusion processing in a pipe-making machine. They are mainly used for piping in building water supply systems, drainage, ventilation, and sewage systems; underground drainage systems; rainwater pipes; and conduits for electrical wiring. Plastic pipes are divided into two main categories: thermoplastic pipes and thermosetting pipes. Thermoplastic pipes include polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), and polyoxymethylene (POM); thermosetting pipes include phenolic plastic pipes.
[0003] When installing plastic pipes, a sealing structure is required to connect the two sections of plastic pipe to prevent internal leakage. The original plastic pipes are sealed using flange connections or tape wrapping. After long-term use, the plastic pipe seals will age and fall off, causing leakage at the plastic pipe connection. When the seals age and fall off, it is impossible to quickly reseal the plastic pipe connection, resulting in internal liquid leakage and affecting subsequent use. Utility Model Content
[0004] To overcome the above-mentioned defects, this utility model provides a plastic pipe fitting with a sealing accessory, which solves the problem that the original plastic pipe required a sealing structure to connect two sections of plastic pipe during installation to prevent internal leakage. The original plastic pipe used flange connections or tape wrapping for sealing. However, after long-term use, the plastic pipe seals will age and fall off, causing leakage at the plastic pipe connection. When the seals age and fall off, it is impossible to quickly reseal the plastic pipe connection, resulting in internal liquid leakage and affecting subsequent use.
[0005] According to one aspect, at least one embodiment of the present invention provides a plastic pipe fitting with a sealing accessory, comprising: a sealing member, wherein a fixing groove is fixedly opened inside the sealing member, an extension tube is fixedly installed on the inner wall of the fixing groove, and a limiting pattern is fixedly installed inside the extension tube;
[0006] The device ring is fixedly installed on the outer end of the seal. Adjustment grooves are fixedly opened on both sides of the inside of the device ring. A first supplementary ring is fixedly connected to the lower end of the device ring. A second supplementary ring is fixedly connected above the adjustment groove. An adjustment block is fixedly installed at the lower end of the second supplementary ring. An elastic support rod is fixedly installed inside the second supplementary ring. A sealing ring is fixedly installed inside the elastic support rod.
[0007] For example, in at least one embodiment of the present invention, a plastic pipe fitting with a sealing accessory is provided, which further includes: a first pipe fixedly connected inside the sealing member, and a second pipe fixedly connected to the upper end of the first pipe.
[0008] For example, in at least one embodiment of the present invention, a plastic pipe fitting with a sealing accessory is provided, which further includes: an installation ring fixedly installed above the sealing element, a reinforcing ring fixedly installed at the upper end of the installation ring, a first pressure-resistant shell fixedly installed below the sealing element, an insert ring fixedly connected to the upper end of the reinforcing ring, and an embedded ring fixedly installed inside the insert ring, a second pressure-resistant shell fixedly installed at the outer end of the insert ring, and a connecting plate fixedly installed inside the second pressure-resistant shell.
[0009] For example, in at least one embodiment of the present invention, a plastic pipe fitting with a sealing accessory is provided, which further includes: the cross-section of the sealing element is "H" shaped; the fixing groove is symmetrically installed on the upper and lower sides of the sealing element with the sealing element as the central reference; the extension tube is symmetrically installed on the inner wall of the sealing element with the sealing element as the central reference; and the limiting texture is a multi-layer wavy structure.
[0010] For example, in at least one embodiment of the present invention, a plastic pipe fitting with sealing accessories is provided, which further includes: the adjusting groove is symmetrically installed on the front and rear sides of the device ring with the device ring as the central reference, the adjusting groove is symmetrically installed on the upper and lower sides of the device ring with the device ring as the central reference, the first supplementary ring and the second supplementary ring have the same structure, the number of adjusting blocks corresponds to the number of adjusting grooves, and the second supplementary ring is slidably connected to the adjusting groove through the adjusting blocks.
[0011] For example, in at least one embodiment of the present invention, a plastic pipe fitting with a sealing accessory is provided, which further includes: the first pipe is connected to the sealing element through a fixing groove, and the first pipe and the second pipe have the same structure.
[0012] For example, in at least one embodiment of the present invention, a plastic pipe fitting with a sealing accessory is provided, which further includes: the cross-section of the mounting ring and the reinforcing ring is "L" shaped, the embedded ring and the reinforcing ring are interlocked, the interlocking ring is interlocked with the mounting ring through the embedded ring, and the first pressure-resistant shell and the second pressure-resistant shell have the same structure.
[0013] For example, in at least one embodiment of the present invention, a plastic pipe fitting with sealing accessories is provided, which further includes: the upper ends of the first pressure-resistant shell and the second pressure-resistant shell are hexagonal, the inner side of the connecting plate and the outer side of the interlocking ring are fixedly installed, and the number of the connecting plates corresponds to the number of hexagons of the second pressure-resistant shell.
[0014] The beneficial effects of the embodiments of this utility model are as follows:
[0015] In this invention, a sealing element is added to the connection between two pipes. The pipe openings are connected via a fixing groove, and a sealing ring is added to the outer end of the device ring. A wave-shaped elastic support rod is integrated at the outer end of the sealing ring and connected to a supplementary ring. When the sealing material creeps due to aging or temperature changes, the wave-shaped elastic support rod continuously provides compensation pressure to maintain a stable sealing pressure. The above-mentioned setup automatically compensates for the pressure at the seal through an automatic compensation structure, preventing leakage at the pipe seal. In addition, in this device, a special-shaped sealing structure is added to the upper end of the pipe seal. An embedded ring connects the interlocking ring and the reinforcing ring, sealing the seal again. A hexagonal pressure-resistant shell is added to the outer end of the interlocking ring to increase the contact area and reduce local stress. The above-mentioned setup provides multiple seals at the seal, significantly improving the sealing safety level through multi-layer sealing and avoiding the weakness of leakage inside the pipe due to the detachment of the sealing structure. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of a plastic pipe fitting with sealing accessories in one embodiment of the present invention;
[0018] Figure 2 This is a schematic diagram of the pipeline structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the sealing element 3 of this utility model;
[0020] Figure 4 This is a schematic diagram of the card-connector structure of this utility model.
[0021] In the diagram: 1. First pipe; 2. Second pipe; 3. Seal; 4. Fixing groove; 5. Extension pipe; 6. Restricting groove; 7. Device ring; 8. Adjusting groove; 9. First supplementary ring; 10. Second supplementary ring; 11. Adjusting block; 12. Elastic support rod; 13. Sealing ring; 14. Mounting ring; 15. Reinforcing ring; 16. First pressure-resistant shell; 17. Insertion ring; 18. Embedded ring; 19. Second pressure-resistant shell; 20. Connecting plate. Detailed Implementation
[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.
[0023] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0024] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0026] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of description and simplification of operation, 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, they should not be construed as limitations on this utility model.
[0027] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0028] like Figures 1-3As shown, it illustrates a plastic pipe fitting with sealing accessories in one embodiment of the present invention, including a sealing member 3, a fixing groove 4 is fixedly opened inside the sealing member 3, an extension tube 5 is fixedly installed on the inner wall of the fixing groove 4, and a limiting texture 6 is fixedly installed inside the extension tube 5.
[0029] Device ring 7 is fixedly installed on the outer end of seal 3. Adjustment grooves 8 are fixedly opened on both sides inside device ring 7. A first supplementary ring 9 is fixedly connected to the lower end of device ring 7. A second supplementary ring 10 is fixedly connected to the upper part of adjustment groove 8. An adjustment block 11 is fixedly installed at the lower end of second supplementary ring 10. An elastic support rod 12 is fixedly installed inside second supplementary ring 10. A sealing ring 13 is fixedly installed inside elastic support rod 12.
[0030] For example, such as Figure 2 As shown, a first pipe 1 is fixedly connected inside the sealing element 3, and a second pipe 2 is fixedly connected to the upper end of the first pipe 1.
[0031] For example, such as Figure 3 As shown, the cross-section of the seal 3 is "H" shaped. The fixing groove 4 is symmetrically installed on the upper and lower sides of the seal 3 with the seal 3 as the center reference. The extension tube 5 is symmetrically installed on the inner wall of the seal 3 with the seal 3 as the center reference. The limiting texture 6 is a multi-layer wave-shaped structure.
[0032] For example, such as Figure 3 As shown, the adjustment groove 8 is symmetrically installed on the front and rear sides of the device ring 7 with the device ring 7 as the center reference, and the adjustment groove 8 is symmetrically installed on the upper and lower sides of the device ring 7 with the device ring 7 as the center reference. The first supplementary ring 9 and the second supplementary ring 10 have the same structure. The number of adjustment blocks 11 corresponds to the number of adjustment grooves 8. The second supplementary ring 10 is slidably connected to the adjustment groove 8 through the adjustment blocks 11.
[0033] For example, such as Figure 2 As shown, the first pipe 1 is connected to the sealing element 3 through the fixing groove 4, and the first pipe 1 and the second pipe 2 have the same structure.
[0034] In some examples, the first pipe 1 and the second pipe 2 have the same structure. The connection between the first pipe 1 and the second pipe 2 is fixed. The first pipe 1 is inserted into the lower fixing groove 4 of the seal 3, and the second pipe 2 is inserted into the upper fixing groove 4 of the seal 3. The inner wall of the seal 3 is a continuous structure to ensure the internal flow of the pipe. An extension pipe 5 is added inside the seal 3. The extension pipe 5 extends into the pipe and its inner wall is designed with a wavy limiting texture 6 to fit the inner wall of the pipe and reduce the risk of leakage. A device 7 is added to the outer end of the seal 3. Multiple adjustment grooves 8 are opened on the upper and lower sides of the device ring 7. The adjustment grooves 8 are interlocked with the adjustment blocks 11. When the sealing material creeps due to aging or temperature changes, the elastic support rod 12 inside the second supplementary ring 10 provides continuous compensation pressure. The elastic support rod 12 pushes the sealing ring 13 installed on its inner side to tighten at the seal 3, thereby preventing leakage at the pipe seal.
[0035] For example, such as Figure 4 As shown, this invention illustrates a plastic pipe fitting with sealing accessories in another embodiment of the present invention. The fitting includes an mounting ring 14 fixedly installed above the sealing element 3, a reinforcing ring 15 fixedly installed at the upper end of the mounting ring 14, a first pressure-resistant shell 16 fixedly installed below the sealing element 3, an insert ring 17 fixedly connected to the upper end of the reinforcing ring 15, an embedded ring 18 fixedly installed inside the insert ring 17, a second pressure-resistant shell 19 fixedly installed at the outer end of the insert ring 17, and a connecting plate 20 fixedly installed inside the second pressure-resistant shell 19.
[0036] For example, such as Figure 4 As shown, the mounting ring 14 and the reinforcing ring 15 have an "L" shaped cross section. The embedded ring 18 and the reinforcing ring 15 are interlocked. The interlocking ring 17 is interlocked with the mounting ring 14 through the embedded ring 18. The first pressure-resistant shell 16 and the second pressure-resistant shell 19 have the same structure.
[0037] For example, such as Figure 4 As shown, the upper ends of the first pressure-resistant shell 16 and the second pressure-resistant shell 19 are hexagonal in shape. The inner side of the connecting plate 20 and the outer side of the interlocking ring 17 form a fixed installation. The number of connecting plates 20 corresponds to the number of hexagons in the second pressure-resistant shell 19.
[0038] In some examples, a mounting ring 14 is added to the outside of the seal 3. The mounting ring 14 is fixedly connected to the reinforcing ring 15 and has an L-shaped cross-section. An embedded ring 18 is added inside the interlocking ring 17. The structure of the embedded ring 18 corresponds to the structure of the reinforcing ring 15. The interlocking ring 17 is fitted and connected to the reinforcing ring 15 through the embedded ring 18 inside it. This assembly is located at the outer end of the seal 3 to form a secondary sealing layer. The outer end of the interlocking ring 17 is fixed to the second pressure-resistant shell 19 through the connecting plate 20. The hexagonal design of the second pressure-resistant shell 19 increases the contact area, thereby effectively reducing local stress.
[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A plastic pipe fitting with a sealing accessory, characterized in that, include: A sealing element (3) has a fixed groove (4) inside, an extension tube (5) is fixedly installed on the inner wall of the fixed groove (4), and a limiting pattern (6) is fixedly installed inside the extension tube (5). Device ring (7), the device ring (7) is fixedly installed on the outer end of the seal (3), the device ring (7) has an adjustment groove (8) fixedly opened on both sides inside, the lower end of the device ring (7) is fixedly connected to a first supplementary ring (9), the upper part of the adjustment groove (8) is fixedly connected to a second supplementary ring (10), the lower end of the second supplementary ring (10) is fixedly installed with an adjustment block (11), the interior of the second supplementary ring (10) is fixedly installed with an elastic support rod (12), and the interior of the elastic support rod (12) is fixedly installed with a sealing ring (13).
2. A plastic pipe fitting with sealing accessories according to claim 1, characterized in that, The seal (3) is internally fixedly connected to a first pipe (1), and the upper end of the first pipe (1) is fixedly connected to a second pipe (2).
3. A plastic pipe fitting with sealing accessories according to claim 2, characterized in that, An installation ring (14) is fixedly installed above the sealing element (3). A reinforcing ring (15) is fixedly installed at the upper end of the installation ring (14). A first pressure-resistant shell (16) is fixedly installed below the sealing element (3). An interlocking ring (17) is fixedly connected to the upper end of the reinforcing ring (15). An embedded ring (18) is fixedly installed inside the interlocking ring (17). A second pressure-resistant shell (19) is fixedly installed at the outer end of the interlocking ring (17). A connecting plate (20) is fixedly installed inside the second pressure-resistant shell (19).
4. A plastic pipe fitting with sealing accessories according to claim 1, characterized in that, The cross-section of the seal (3) is "H" shaped. The fixing groove (4) is symmetrically installed on the upper and lower sides of the seal (3) with the seal (3) as the center reference. The extension tube (5) is symmetrically installed on the inner wall of the seal (3) with the seal (3) as the center reference. The limiting texture (6) is a three-layer wave-shaped structure.
5. A plastic pipe fitting with sealing accessories according to claim 1, characterized in that, The adjustment groove (8) is symmetrically installed on the front and rear sides of the device ring (7) with the device ring (7) as the center reference. The adjustment groove (8) is symmetrically installed on the upper and lower sides of the device ring (7) with the device ring (7) as the center reference. The first supplementary ring (9) and the second supplementary ring (10) have the same structure. The number of adjustment blocks (11) corresponds to the number of adjustment grooves (8). The second supplementary ring (10) is slidably connected to the adjustment groove (8) through the adjustment blocks (11).
6. A plastic pipe fitting with sealing accessories according to claim 2, characterized in that, The first pipe (1) is connected to the sealing element (3) through the fixing groove (4), and the first pipe (1) and the second pipe (2) have the same structure.
7. A plastic pipe fitting with sealing accessories according to claim 3, characterized in that, The mounting ring (14) and the reinforcing ring (15) have an "L" shaped cross section. The embedded ring (18) and the reinforcing ring (15) are interlocked. The interlocking ring (17) is interlocked with the mounting ring (14) through the embedded ring (18). The first pressure-resistant shell (16) and the second pressure-resistant shell (19) have the same structure.
8. A plastic pipe fitting with sealing accessories according to claim 3, characterized in that, The upper ends of the first pressure-resistant shell (16) and the second pressure-resistant shell (19) are hexagonal. The inner side of the connecting plate (20) and the outer side of the interlocking ring (17) are fixedly installed. The number of connecting plates (20) corresponds to the number of hexagons in the second pressure-resistant shell (19).