Teflon sleeve with sealing surface

Abstract

The utility model discloses a polytetrafluoroethylene casing pipe with a sealing surface, which relates to the technical field of polytetrafluoroethylene casing pipes and comprises a polytetrafluoroethylene pipe body, and a sleeving component is arranged in the polytetrafluoroethylene pipe body. According to the utility model, through the arrangement of the sleeving assembly, firstly, the sleeving pipe with one end of the first rubber sealing gasket is inserted into the polytetrafluoroethylene pipe, so that on one hand, the sleeving pipe and the polytetrafluoroethylene pipe can be quickly positioned, and on the other hand, the gap between the sleeving pipe and the polytetrafluoroethylene pipe can be filled by the first rubber sealing gasket; the sealing performance between the socketed pipe and the polytetrafluoroethylene pipe is improved; and meanwhile, when the sealing inserting plate is inserted into the inserting groove, the silica gel sealing gasket fixedly connected with the outer portion of the sealing inserting plate can seal the portion between the sleeving pipe and the connecting pipe again, the overall sealing performance of the polytetrafluoroethylene pipe is improved, and the service life of the polytetrafluoroethylene pipe is prolonged. And the problem that air leakage is easy to occur when the polytetrafluoroethylene pipe is used is avoided, so that convenience is brought to the use of the polytetrafluoroethylene pipe.

Description

Technical Field

[0001] This utility model relates to the field of PTFE sleeve technology, and in particular to a PTFE sleeve with a sealing surface. Background Technology

[0002] PTFE tubing is a type of corrosion-resistant tubing commonly used in chemical, mechanical, and other fields. Due to its stable chemical properties, electrical insulation properties, and anti-aging properties, PTFE tubing ensures safe transmission in various hazardous environments such as high temperatures and strong corrosive conditions.

[0003] The patent titled "A PTFE Hoses with Flange Sleeves" (patent application number: 201020509715.7) discloses a PTFE hose with flange sleeves, comprising a hose with sleeves at both ends, wherein the connection between the hose and the sleeves is fitted with a clamp for fastening. The external flange sleeves effectively prevent damage to the hose's end face and the contact end with the external connecting pipe, thus preventing gas leakage and extending the service life of the PTFE hose.

[0004] In the aforementioned case, the sleeve and hose were only secured with a gasket, resulting in poor sealing and easy air leakage. Furthermore, the boss was only connected to the connecting pipe through multiple through holes, allowing gas to leak from these points, thus complicating the use of the PTFE sleeve. Therefore, it is necessary to propose a PTFE sleeve with a sealing surface to solve these problems. Utility Model Content

[0005] The purpose of this utility model is to provide a PTFE sleeve with a sealing surface to solve the problem in the above-mentioned background art where only a gasket is embedded between the sleeve and the hose to fasten the connection between the sleeve and the hose. This results in poor sealing between the sleeve and the hose, which easily leads to air leakage between the sleeve and the hose. Furthermore, the boss is only connected to the connecting pipe through multiple through holes, which also allows gas to leak from the easy connection points, thus causing inconvenience in the use of PTFE sleeves.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a PTFE sleeve with a sealing surface, comprising a PTFE tube body, wherein a sleeve assembly is provided inside the PTFE tube body, the sleeve assembly comprising a sleeve tube, a first rubber sealing gasket and a first connecting plate, wherein the outside of the sleeve tube is inserted into the inside of the PTFE tube body, and a limiting groove is formed on the outside of the sleeve tube, wherein the first rubber sealing gasket is snapped into the outside of the limiting groove.

[0007] A connecting bolt is inserted inside the first connecting plate, and a second connecting plate is inserted outside the connecting bolt. A connecting pipe is fixedly connected inside the second connecting plate, and a second rubber sealing gasket is fixedly connected outside the connecting pipe. A sealing insert is fixedly connected to the side of the second connecting plate.

[0008] Preferably, the PTFE tube body is fitted with a clamp, a fixing bolt is inserted into the clamp, and a fixing nut is threaded onto the outside of the fixing bolt.

[0009] Preferably, the outside of the connecting pipe is inserted into the inside of the sleeve pipe, and the second rubber sealing gasket is located inside the sleeve pipe.

[0010] Preferably, the first connecting plate has a slot inside, the sealing plate is inserted into the slot, and a silicone sealing gasket is fixedly connected to the outside of the sealing plate.

[0011] Preferably, the number of connecting bolts is four, and the four connecting bolts are arranged in an array on the side of the first connecting plate, and each of the four connecting bolts is threaded with a connecting nut.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] By setting up a socket assembly, the socket with the first rubber sealing gasket is first inserted into the PTFE tube. This facilitates quick positioning of the socket and the PTFE tube, and the first rubber sealing gasket fills the gap between them, improving the seal. When the socket is connected and fixed to the connecting tube, the second rubber sealing gasket fills the gap between them. Simultaneously, when the sealing plate is inserted into the slot, the silicone sealing gasket fixedly connected to the outside of the sealing plate further seals the socket and the connecting tube, improving the overall sealing performance of the PTFE tube and preventing leaks during use, thus bringing convenience to the use of PTFE tubes. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the PTFE sleeve with sealing surface of this utility model.

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

[0016] Figure 3 This is a schematic diagram of the internal structure of the sleeve in this utility model.

[0017] Figure 4 This is a side view of the sleeve pipe in this utility model.

[0018] Figure 5 This is a schematic diagram of the connecting pipe in this utility model.

[0019] In the diagram: 1. PTFE tube body; 2. Socket; 3. Clamp; 4. Fixing bolt; 5. Limiting groove; 6. Rubber sealing gasket No. 1; 7. Connecting plate No. 1; 8. Connecting bolt; 9. Connecting plate No. 2; 10. Connecting pipe; 11. Rubber sealing gasket No. 2; 12. Sealing insert plate; 13. Slot. Detailed Implementation

[0020] 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.

[0021] This utility model provides, for example Figures 1-5 The diagram shows a PTFE sleeve with a sealing surface, comprising a PTFE tube body 1. An internal fitting assembly is provided within the PTFE tube body 1, comprising a sleeve connector 2, a first rubber sealing gasket 6, and a first connecting plate 7. The external end of the sleeve connector 2 is inserted into the internal end of the PTFE tube body 1, and a limiting groove 5 is formed on the external end of the sleeve connector 2. The first rubber sealing gasket 6 is engaged with the external end of the limiting groove 5. A clamp 3 is fitted onto the external end of the PTFE tube body 1, and a fixing bolt 4 is inserted into the internal end of the clamp 3. A fixing nut is threaded onto the external end of the fixing bolt 4. During use of the PTFE tube body 1, the sleeve connector 2 with the first rubber sealing gasket 6 is first inserted into the internal end of the PTFE tube body 1. This facilitates quick positioning between the sleeve connector 2 and the PTFE tube body 1, and the first rubber sealing gasket 6 fills the gap between the sleeve connector 2 and the PTFE tube body 1, improving the sealing performance. Then, the fixing nut is rotated, and the clamp 3 is used to fix the sleeve connector 2 and the PTFE tube body 1.

[0022] In addition, a connecting bolt 8 is inserted inside the first connecting plate 7, and a second connecting plate 9 is inserted outside the connecting bolt 8. A connecting pipe 10 is fixedly connected inside the second connecting plate 9, and a second rubber sealing gasket 11 is fixedly connected outside the connecting pipe 10. A sealing insert plate 12 is fixedly connected to the side of the second connecting plate 9. The outside of the connecting pipe 10 is inserted into the inside of the sleeve pipe 2. The second rubber sealing gasket 11 is located inside the sleeve pipe 2. A slot 13 is opened inside the first connecting plate 7. The sealing insert plate 12 is inserted into the slot 13, and a silicone sealing gasket is fixedly connected to the outside of the sealing insert plate 12. There are four connecting bolts 8, and the four connecting bolts 8 are arranged in an array on the side of the first connecting plate 7. A connecting nut is threaded onto the outside of each of the four connecting bolts 8. When the sleeve 2 is connected and fixed to the connecting pipe 10, the second rubber sealing gasket 11 fills the gap between the sleeve 2 and the connecting pipe 10. At the same time, when the sealing plate 12 is inserted into the slot 13, the silicone sealing gasket fixedly connected to the outside of the sealing plate 12 will seal the gap between the sleeve 2 and the connecting pipe 10 again, which improves the overall sealing performance of the PTFE tube body 1 and avoids the problem of air leakage that easily occurs during the use of the PTFE tube body 1, thus bringing convenience to the use of the PTFE tube body 1.

[0023] Working principle: During the use of the PTFE tube body 1, the sleeve 2 with the first rubber sealing gasket 6 at one end is first inserted into the interior of the PTFE tube body 1. This facilitates quick positioning between the sleeve 2 and the PTFE tube body 1, and the first rubber sealing gasket 6 fills the gap between the sleeve 2 and the PTFE tube body 1, improving the sealing performance. Then, the fixing nut is rotated, and the clamp 3 is used to fix the sleeve 2 and the PTFE tube body 1. When the sleeve 2 is connected and fixed to the connecting pipe 10, the second rubber sealing gasket 11 fills the gap between the sleeve 2 and the connecting pipe 10. At the same time, when the sealing plate 12 is inserted into the slot 13, the silicone sealing gasket fixedly connected to the outside of the sealing plate 12 will seal the sleeve 2 and the connecting pipe 10 again, improving the overall sealing performance of the PTFE tube body 1 and avoiding the problem of air leakage during use, thus bringing convenience to the use of the PTFE tube body 1.

Claims

1. A four-fluorine sleeve with a sealing surface, comprising a four-fluorine tube body (1), characterized in that: The PTFE tube body (1) is provided with a sleeve assembly inside. The sleeve assembly includes a sleeve tube (2), a first rubber sealing gasket (6) and a first connecting plate (7). The outside of the sleeve tube (2) is inserted into the inside of the PTFE tube body (1), and a limiting groove (5) is opened on the outside of the sleeve tube (2). The first rubber sealing gasket (6) is snapped into the outside of the limiting groove (5). A connecting bolt (8) is inserted inside the first connecting plate (7), and a second connecting plate (9) is inserted outside the connecting bolt (8). A connecting pipe (10) is fixedly connected inside the second connecting plate (9), and a second rubber sealing gasket (11) is fixedly connected outside the connecting pipe (10). A sealing insert plate (12) is fixedly connected to the side of the second connecting plate (9).

2. A four-fluorine sleeve with a sealing surface according to claim 1, characterized in that: The PTFE tube body (1) is fitted with a clamp (3) on the outside, and a fixing bolt (4) is inserted inside the clamp (3). The fixing bolt (4) is threaded with a fixing nut on the outside.

3. A four-fluorine sleeve with a sealing surface according to claim 1, characterized in that: The outside of the connecting pipe (10) is inserted into the inside of the sleeve pipe (2), and the second rubber sealing gasket (11) is located inside the sleeve pipe (2).

4. A four-fluorine sleeve with a sealing surface according to claim 1, characterized in that: The first connecting plate (7) has a slot (13) inside, the sealing plate (12) is inserted into the slot (13), and a silicone sealing gasket is fixedly connected to the outside of the sealing plate (12).

5. A four-fluorine sleeve with a sealing surface according to claim 1, characterized in that: The number of connecting bolts (8) is four, and the four connecting bolts (8) are arranged in an array on the side of the first connecting plate (7). The four connecting bolts (8) are all threaded with connecting nuts.

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