A polytetrafluoroethylene pipe having a stable connection

Abstract

The utility model relates to the technical field of polytetrafluoroethylene pipe, specifically relates to a kind of polytetrafluoroethylene pipe of stable connection, including polytetrafluoroethylene pipe and the fixing device of being set at two polytetrafluoroethylene pipe connecting place, the fixing device includes the butt pipe of being able to be inserted into butt joint groove, both ends of the butt pipe are equipped with sealing ring pipe, the butt pipe outside is equipped with two opposite setting the fastening plate that can be attached on the outside wall of polytetrafluoroethylene pipe, the fastening plate is equipped with the guide slot of being passed through, the guide slot is equipped with the guide rod of being slid with one end being connected with butt pipe, the guide rod is equipped with stop plate with butt pipe away from one end, and fastening thread end is equipped with both ends of fastening plate.The utility model is convenient for staff to the butt joint installation of two polytetrafluoroethylene pipes, and simultaneously improve the connection strength and stability between two polytetrafluoroethylene pipes.

Description

Technical Field

[0001] This utility model relates to the field of polytetrafluoroethylene (PTFE) pipe technology, and specifically to a PTFE pipe with a stable connection. Background Technology

[0002] Polytetrafluoroethylene (PTFE) is a synthetic polymer material in which fluorine replaces all the hydrogen atoms in polyethylene. It can be made into pipes, commonly known as PTFE pipes. It has the characteristics of acid and alkali resistance and high temperature resistance. When using pipes, the length may be insufficient in actual use, so it is necessary to connect two PTFE pipes. Therefore, PTFE pipe connection devices are required.

[0003] The existing PTFE pipe connection structure basically involves directly inserting two pipes into the same thicker pipe to complete the connection. Although high-temperature welding is carried out during installation, loosening and detachment will still occur over time. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a stable PTFE pipe connection. This addresses the problem that existing PTFE pipe connection structures typically involve directly inserting two pipes into the same, thicker pipe to complete the connection. Although high-temperature welding is performed during installation, loosening and detachment still occur over time.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A sturdy polytetrafluoroethylene (PTFE) pipe includes a PTFE pipe and a fixing device disposed at the connection of two PTFE pipes. One end of the PTFE pipe is provided with a butt groove, and the PTFE pipe is provided with a connecting thread end, on which a connecting nut is screwed.

[0007] The fixing device includes a connecting pipe that can be inserted into the mating groove. Both ends of the connecting pipe are provided with sealing rings. Two fastening plates are provided on the outer side of the connecting pipe, which can be attached to the outer wall of the polytetrafluoroethylene pipe. A guide groove is provided through the fastening plate. A guide rod with one end connected to the connecting pipe is slidably provided in the guide groove. A stop plate is provided at the end of the guide rod away from the connecting pipe. Both ends of the fastening plate are provided with fastening thread ends.

[0008] As a preferred technical solution of this utility model, a sealing groove is provided on the polytetrafluoroethylene pipe in the docking groove for the insertion of the sealing ring pipe, and a sealing gasket is provided in the sealing groove.

[0009] The above technical solution improves the sealing performance of the connection between the fixing device and the two polytetrafluoroethylene pipes by using the sealing ring pipe in conjunction with the sealing gasket in the sealing groove.

[0010] As a preferred technical solution of this utility model, a locking groove is provided around the outer wall of the polytetrafluoroethylene pipe, and a locking plate is provided on the inner wall of the fastening plate to be snapped into the locking groove when two polytetrafluoroethylene pipes are connected.

[0011] By using the above technical solution and the locking groove and locking plate, the stability and strength of the connection between the fixing device and the two polytetrafluoroethylene pipes are improved.

[0012] As a preferred technical solution of this utility model, one end of the connecting nut is provided with a fastening nut that is screwed into the fastening thread end when the two fastening plates are in contact.

[0013] By using the above technical solution and the setting of fastening nuts, the fastening of the fixing device installed between the two polytetrafluoroethylene pipes is improved.

[0014] As a preferred technical solution of this utility model, the guide rod is provided with two opposing limiting plates, and the inner sidewall of the guide groove is provided with a limiting groove that matches the limiting plates.

[0015] By using the above technical solution, the setting of the limiting groove and the limiting plate can be used to avoid the fastening plate from shifting and ensure that the locking plate on the fastening plate can be engaged in the locking groove.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In use, first insert the connecting pipe on the fixing device into the mating groove of the PTFE pipe, so that the sealing ring is inserted into the sealing groove of the PTFE pipe. Then, move the two fastening plates to fit against the outer walls of the two PTFE pipes, so that the locking plates on the inner walls of the fastening plates engage with the locking grooves on the PTFE pipes. Then, tighten the connecting nuts on the threaded ends to move them, so that the fastening nuts are screwed into the two threaded ends of the fastening plates, thus completing the mating installation of the two PTFE pipes. This utility model facilitates the mating installation of two PTFE pipes by workers, and at the same time improves the connection strength and stability between the two PTFE pipes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the polytetrafluoroethylene pipe of this utility model;

[0020] Figure 3 This is a schematic diagram of the fixing device of this utility model;

[0021] Figure 4 This is a diagram showing the connection relationship between the connecting pipe and the guide rod of this utility model;

[0022] Figure 5 This is a schematic diagram of the fastening plate of this utility model;

[0023] In the diagram: 1. PTFE tubing; 101. Butt joint groove; 102. Threaded connection end; 103. Sealing groove; 104. Locking groove; 105. Sealing gasket; 2. Fixing device; 201. Butt joint tube; 202. Sealing ring tube; 203. Fastening plate; 204. Stop plate; 205. Fastening threaded end; 206. Locking plate; 207. Guide rod; 208. Limiting plate; 209. Guide groove; 210. Limiting groove; 3. Connecting nut; 4. Fastening nut. Detailed Implementation

[0024] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0025] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] Example

[0027] This utility model provides a PTFE pipe with a stable connection, see reference. Figure 1-5 As shown, the invention includes a polytetrafluoroethylene (PTFE) pipe 1 and a fixing device 2 installed at the connection of two PTFE pipes 1. This invention facilitates the docking and installation of two PTFE pipes 1 by workers, and at the same time improves the connection strength and stability between the two PTFE pipes 1.

[0028] refer to Figure 2As shown, one end of the PTFE pipe 1 has a butt groove 101, and the PTFE pipe 1 has a threaded end 102. A connecting nut 3 is screwed onto the threaded end 102. One end of the connecting nut 3 has a fastening nut 4 that engages with the fastening threaded end 205 when the two fastening plates 203 are in contact. The arrangement of the fastening nut 4 and the connecting nut 3 improves the tightness of the fixing device 2 between the two PTFE pipes 1, ensuring the connection strength between the two PTFE pipes 1.

[0029] The polytetrafluoroethylene (PTFE) pipe 1 within the docking groove 101 has a sealing groove 103 for inserting a sealing ring pipe 202, and a sealing gasket 105 is provided within the sealing groove 103. The sealing ring pipe 202, in conjunction with the sealing gasket 105 within the sealing groove 103, improves the sealing performance of the connection between the fixing device 2 and the two PTFE pipes 1.

[0030] The polytetrafluoroethylene (PTFE) pipe 1 has a locking groove 104 circumferentially formed on its outer wall, and the fastening plate 203 has a locking plate 206 on its inner wall that engages with the two PTFE pipes 1 when they are connected. The locking groove 104 and the locking plate 206 improve the stability and strength of the connection between the fixing device 2 and the two PTFE pipes 1.

[0031] refer to Figure 3-5 As shown, the fixing device 2 includes a connecting pipe 201 that can be inserted into the docking groove 101. Both ends of the connecting pipe 201 are provided with sealing ring tubes 202. The sealing ring tubes 202 and the connecting pipe 201 are integrally formed, thereby improving the connection strength between the two. Two fastening plates 203 are provided on the outer side of the connecting pipe 201, which can be attached to the outer wall of the polytetrafluoroethylene pipe 1. The fastening plates 203 have a semi-circular arc structure. A guide groove 209 is provided through the fastening plate 203. A guide rod 207 with one end connected to the outer wall of the connecting pipe 201 is slidably provided in the guide groove 209. A stop plate 204 is provided at the end of the guide rod 207 away from the connecting pipe 201. The stop plate 204 is provided to prevent the fastening plate 203 from detaching from the guide rod 207. Both ends of the fastening plate 203 are provided with fastening threaded ends 205.

[0032] The guide rod 207 is provided with two opposing limiting plates 208, and the inner wall of the guide groove 209 is provided with a limiting groove 210 that matches the limiting plates 208. The limiting groove 210 and the limiting plates 208 are provided to prevent the fastening plate 203 from shifting and to ensure that the locking plate 206 on the fastening plate 203 can be engaged in the locking groove 104.

[0033] The working principle of this utility model is as follows:

[0034] In use, firstly, insert the connecting pipe 201 on the fixing device 2 into the mating groove 101 of the PTFE pipe 1, so that the sealing ring pipe 202 is inserted into the sealing groove 103 of the PTFE pipe 1. Then, move the two fastening plates 203 to fit against the outer walls of the two PTFE pipes 1, so that the locking plate 206 on the inner wall of the fastening plate 203 is engaged with the locking groove 104 on the PTFE pipe 1. Then, turn the connecting nut 3 on the connecting thread end 102 to move it, so that the fastening nut 4 is screwed into the two fastening thread ends 205 on the two fastening plates 203 to fix it, thus completing the mating installation of the two PTFE pipes 1. This utility model facilitates the mating installation of two PTFE pipes 1 by workers, and at the same time improves the connection strength and stability between the two PTFE pipes 1.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; 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 the above terms in this utility model based on the specific circumstances.

[0036] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A securely connected polytetrafluoroethylene (PTFE) pipe, comprising a PTFE pipe (1) and a fixing device (2) disposed at the connection point of two PTFE pipes (1), characterized in that: The polytetrafluoroethylene pipe (1) has a butt groove (101) at one end and a connecting thread end (102) on the polytetrafluoroethylene pipe (1), and a connecting nut (3) is screwed onto the connecting thread end (102). The fixing device (2) includes a connecting pipe (201) that can be inserted into the docking groove (101). Both ends of the connecting pipe (201) are provided with sealing ring pipes (202). Two fastening plates (203) are provided on the outside of the connecting pipe (201) and can be attached to the outer wall of the polytetrafluoroethylene pipe (1). A guide groove (209) is provided through the fastening plate (203). A guide rod (207) with one end connected to the connecting pipe (201) is slidably provided in the guide groove (209). A stop plate (204) is provided at the end of the guide rod (207) away from the connecting pipe (201). Both ends of the fastening plate (203) are provided with fastening threaded ends (205).

2. The PTFE pipe with a stable connection according to claim 1, characterized in that: The polytetrafluoroethylene pipe (1) in the docking groove (101) is provided with a sealing groove (103) for the sealing ring pipe (202) to be inserted, and a sealing gasket (105) is provided in the sealing groove (103).

3. The PTFE pipe with a stable connection according to claim 1, characterized in that: The outer wall of the polytetrafluoroethylene pipe (1) is provided with a locking groove (104), and the inner wall of the fastening plate (203) is provided with a locking plate (206) that is snapped into the locking groove (104) when two polytetrafluoroethylene pipes (1) are connected.

4. The PTFE pipe with a stable connection according to claim 1, characterized in that: The connecting nut (3) has a fastening nut (4) that is screwed into the fastening thread end (205) when the two fastening plates (203) are in contact.

5. The PTFE pipe with a stable connection according to claim 1, characterized in that: The guide rod (207) is provided with two opposing limiting plates (208), and the inner side wall of the guide groove (209) is provided with a limiting groove (210) that is adapted to the limiting plates (208).

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