Sealing end face structure of PVC (polyvinyl chloride) pipeline
By combining a limiting ring, threaded rod, and nut with a buffer structure, the problems of poor sealing performance and easy damage to the sealant in PVC pipes are solved, achieving efficient sealing and buffer protection, and ensuring the stability and convenient replacement of the sealant.
Patent Information
- Application Number
- CN202422622575.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Existing PVC pipe sealing structures have poor sealing performance, making it easy for rainwater or insects and rodents to enter. Furthermore, the seals are prone to damage or detachment, failing to effectively protect cables.
The end cap is quickly installed using a combination structure of a limiting ring, threaded rod, and nut. Double sealing is achieved through the first and second sealing rings. Combined with the sleeve, spring, and buffer plate in the buffer structure, the cable is buffered and protected. The protective layer is removable and replaceable.
It improves the sealing performance of the pipeline, reduces the impact force when the cable comes into contact, prevents damage to the seal, ensures the stability and sealing of the seal, and facilitates the replacement of the protective layer.
Smart Images
Figure CN223514580U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe sealing technology, and in particular to a sealing end face structure for PVC pipes. Background Technology
[0002] PVC pipes are mainly composed of polyvinyl chloride, which is formed by hot pressing after polyvinyl chloride resin is combined with stabilizers, lubricants and other substances. It is the earliest plastic pipe material to be developed and applied. It is mainly used as a protective pipe for power cables. Because it has strong corrosion resistance, is easy to bond, has low price and hard texture, it can play a role in protecting cables. In order to prevent rainwater and insects and rodents from entering the pipe body, the end face of the PVC pipe needs to be sealed by end caps.
[0003] Existing pipe end-face sealing structures involve inserting a plug into the pipe port. This method is widely used in the industry due to its simple structure and operation. However, its drawbacks include poor sealing, allowing rainwater or rodents to enter the pipe, damaging the inner wall or cables inside. Furthermore, after a cable is inserted into the pipe, workers typically pull the cable end to the pipe port for easy retrieval later, then insert the plug. However, existing plugs lack a buffer structure; therefore, excessive force during insertion may cause collision with the cable end, leading to partial plug detachment or even damage under the reaction force. To address these issues, we propose a new PVC pipe sealing end-face structure. Utility Model Content
[0004] The main purpose of this utility model is to provide a sealing end face structure for PVC pipes, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A sealing end face structure for a PVC pipe includes a pipe body, on one side of which a sealing end structure is fitted, and a buffer structure is embedded inside the sealing end structure.
[0007] Furthermore, the main body of the pipe includes a pipe body, a first sealing ring, a limiting ring, and fixing holes. The first sealing ring is fixedly installed on one side surface of the pipe body, and a limiting ring is sleeved on the side of the pipe body closest to the first sealing ring. The limiting ring has four sets of fixing holes on one side surface.
[0008] Furthermore, the sealing structure includes a second sealing ring, a sealing head, a nut, and a threaded rod. The second sealing ring is embedded in one side of the sealing head, and a threaded rod is fixedly installed on one side of the sealing head. There are four sets of threaded rods.
[0009] Furthermore, the pipe body and the sealing structure are installed on the surface of the pipe body through the sealing head, the first sealing ring is embedded in the inner surface of the second sealing ring, the threaded rod is embedded in the inside of the fixing hole, and all are fixed by nuts, and there are four sets of nuts.
[0010] Furthermore, the buffer structure includes a first sleeve, a second sleeve, a spring, a buffer plate, a protective layer, a fixing groove, a handle, a threaded hole, and an embedded post. An embedded post is fixedly installed on one side surface of the protective layer. There are two sets of embedded posts. The upper surface of each embedded post has a threaded hole on one side. A handle is embedded in the inside of each threaded hole. A fixing groove is opened on one side surface of the buffer plate at the edge. There are two sets of fixing grooves. The embedded posts are respectively embedded in the inside of the fixing grooves. A second sleeve is fixedly installed on one side surface of the buffer plate at the middle position. There are four sets of second sleeves. A first sleeve is fitted on the surface of each second sleeve. A spring is embedded and connected inside the first sleeve and the second sleeve.
[0011] Furthermore, the buffer structure is fixedly installed inside the end cap on one side surface via a first sleeve.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] In this invention, the limiting ring, nut, and threaded rod enable quick installation of the pipe body and the sealing end, making operation convenient and installation secure. The first and second sealing rings provide double sealing for the pipe body and the sealing end, resulting in excellent sealing performance. The first and second sleeves and springs provide a buffering effect by contacting the cable inside the pipe, reducing the impact and reaction force when the buffer plate contacts the cable, thus protecting against blockages and further enhancing the sealing effect. The handle facilitates easy replacement of the protective layer. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a PVC pipe sealing end face structure according to the present invention;
[0015] Figure 2 This is a cross-sectional view of the pipe body of a PVC pipe sealing end face structure according to the present invention;
[0016] Figure 3 This is a detailed drawing of the buffer structure of a PVC pipe sealing end face structure according to the present invention;
[0017] Figure 4 This utility model relates to a sealing end face structure for PVC pipes. Figure 2 A magnified view of the details at point A;
[0018] Figure 5 This utility model relates to a sealing end face structure for PVC pipes. Figure 3 A magnified view of the details at point B.
[0019] In the diagram: 1. Pipe body; 101. Pipe body; 102. First sealing ring; 103. Limiting ring; 104. Fixing hole; 2. End sealing structure; 201. Second sealing ring; 202. End sealing head; 203. Nut; 204. Threaded rod; 3. Buffer structure; 301. First sleeve; 302. Second sleeve; 303. Spring; 304. Buffer plate; 305. Protective layer; 306. Fixing groove; 307. Handle; 308. Threaded hole; 309. Embedded post. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] like Figure 1-5 As shown, a PVC pipe sealing end face structure includes a pipe body 1, a sealing end structure 2 is sleeved on one side of the surface of the pipe body 1, and a buffer structure 3 is embedded in the inside of the sealing end structure 2.
[0022] The main body of the pipe 1 includes a pipe body 101, a first sealing ring 102, a limiting ring 103, and fixing holes 104. The first sealing ring 102 is fixedly installed on one side of the pipe body 101. A limiting ring 103 is fitted onto the surface of the pipe body 101 near the first sealing ring 102. Fixing holes 104 are formed on one side of the limiting ring 103, and there are four sets of fixing holes 104. The sealing end structure 2 includes a second sealing ring 201, a sealing end head 202, a nut 203, and a threaded rod 204. The second sealing ring 201 is embedded in one side of the sealing end head 202. A threaded rod 204 is fixedly installed on one side surface of the end cap 202, and there are four sets of threaded rods 204; the pipe body 1 and the sealing structure 2 are sleeved on the surface of the pipe body 101 through the sealing end cap 202; the first sealing ring 102 is embedded in the inner surface of the second sealing ring 201; the threaded rods 204 are embedded in the inside of the fixing hole 104, and are all fixed by nuts 203, and there are four sets of nuts 203; the first sealing ring 102 and the second sealing ring 201 are tightly attached together, thereby further achieving a seal; the buffer structure 3 includes a first sleeve 301, a second sleeve 302, and a spring 30 3. A buffer plate 304, a protective layer 305, a fixing groove 306, a handle 307, a threaded hole 308, and an embedded post 309 are provided. An embedded post 309 is fixedly installed on one side surface of the protective layer 305. There are two sets of embedded posts 309. The protective layer 305 is made of an impact-resistant and wear-resistant material, such as polycarbonate. A threaded hole 308 is provided on one side of the upper surface of each embedded post 309. A handle 307 is embedded inside each threaded hole 308. The surface of the handle 307 is threaded. A fixing groove 306 is provided on one side surface of the buffer plate 304 at the edge. There are two sets of fixing grooves 306. The embedded posts 309 are respectively embedded and installed inside the fixed groove 306. The second sleeve 302 is fixedly installed on one side surface of the buffer plate 304 at the middle position. There are four sets of second sleeves 302. The surface of each second sleeve 302 is fitted with a first sleeve 301. A spring 303 is embedded and connected inside the first sleeve 301 and the second sleeve 302. One end of the spring 303 is fixed inside the second sleeve 302 and the other end is fixed inside the first sleeve 301. The buffer structure 3 is fixedly installed inside the end cap 202 on one side surface through the first sleeve 301.
[0023] It should be noted that this utility model is a PVC pipe sealing end face structure. In use, the sealing end structure 2 is fixed to the surface of the pipe body 1, and the buffer structure 3 buffers the sealing end structure 2. The sealing end head 202 is fitted onto the surface of the pipe body 101, so that the first sealing ring 102 is embedded in the inner surface of the second sealing ring 201, the threaded rod 204 is embedded in the inside of the fixing hole 104, and the nut 203 is tightened to fix the limiting ring 103 to the sealing end head 202. The pipe body 101 and the sealing end head 202 are then installed. When the protective layer on the buffer plate... When 305 comes into contact with the cable, it squeezes the buffer plate 304 with the protective layer 305, causing the spring 303 to be compressed. The second sleeve 302 moves inside the first sleeve 301, thus forming a buffer force, which counteracts the reaction force during contact, thereby solving the problems of blockage, damage and partial detachment from the pipe in the prior art. When the protective layer 305 is severely worn and needs to be replaced, the handle 307 inside the threaded hole 308 is loosened, and the protective layer 305 is moved to one side, so that the embedded post 309 is away from the fixing groove 306, and the disassembly can be completed.
[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A sealing end face structure for a PVC pipe, characterized in that: The system includes a pipe body (1), on one side of which a sealing structure (2) is fitted. A buffer structure (3) is embedded inside the sealing structure (2). The buffer structure (3) includes a first sleeve (301), a second sleeve (302), a spring (303), a buffer plate (304), a protective layer (305), a fixing groove (306), a handle (307), a threaded hole (308), and an embedded post (309). An embedded post (309) is fixedly installed on one side of the protective layer (305). There are two sets of embedded posts (309), and each set has a threaded hole on one side of its upper surface. 308), the threaded hole (308) is fitted with a handle (307), the buffer plate (304) has a fixing groove (306) at the edge of one side surface, the fixing groove (306) is in two sets, the embedded post (309) is respectively fitted in the fixing groove (306), the buffer plate (304) has a second sleeve (302) fixedly installed at the middle position of one side surface, the second sleeve (302) is in four sets, the surface of the second sleeve (302) is fitted with a first sleeve (301), the first sleeve (301) and the second sleeve (302) are fitted with springs (303) embedded in the interior of the first sleeve (301) and the second sleeve (302).
2. The PVC pipe sealing end face structure according to claim 1, characterized in that: The main body of the pipe (1) includes a pipe body (101), a first sealing ring (102), a limiting ring (103), and a fixing hole (104). The first sealing ring (102) is fixedly installed on one side surface of the pipe body (101). The limiting ring (103) is sleeved on the side of the pipe body (101) close to the first sealing ring (102). The fixing hole (104) is opened on one side surface of the limiting ring (103). There are four sets of fixing holes (104).
3. The PVC pipe sealing end face structure according to claim 2, characterized in that: The sealing structure (2) includes a second sealing ring (201), a sealing head (202), a nut (203), and a threaded rod (204). The sealing head (202) has a second sealing ring (201) embedded in one side surface. The sealing head (202) has a threaded rod (204) fixedly installed on one side surface. There are four sets of threaded rods (204).
4. The PVC pipe sealing end face structure according to claim 3, characterized in that: The pipe body (1) and the sealing structure (2) are fitted onto the surface of the pipe body (101) through the sealing head (202). The first sealing ring (102) is embedded in the inner surface of the second sealing ring (201). The threaded rod (204) is embedded in the inside of the fixing hole (104) and is fixed by nuts (203). There are four sets of nuts (203).
5. The PVC pipe sealing end face structure according to claim 4, characterized in that: The buffer structure (3) is fixedly installed inside the end cap (202) on one side surface via the first sleeve (301).