A connected fastened polytetrafluoroethylene tube

Abstract

The utility model relates to the technical field of polytetrafluoroethylene pipeline, specifically relates to a kind of polytetrafluoroethylene pipe of connection fastening, including polytetrafluoroethylene pipe body, one end of polytetrafluoroethylene pipe body is equipped with first connecting disc, first connecting disc both sides are symmetrically equipped with first mounting block, first mounting block is equipped with the drive slot that is communicated with first positioning hole in, the drive slot is equipped with the driving column that slides in, first mounting block outer side end face is equipped with the plug-in column, the locking slot is opened in plug-in column, locking slot is equipped with the locking block that slides in, the connecting slot that extends to first mounting block is opened in plug-in column, connecting slot is communicated with drive slot and locking slot, connecting slot is equipped with the connecting plate that is connected with driving column and locking block, another end of polytetrafluoroethylene pipe body is equipped with second connecting disc, second connecting disc is equipped with the second mounting block that is corresponding with first mounting block one by one.The utility model improves the butt joint installation efficiency of two polytetrafluoroethylene pipe body.

Description

Technical Field

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

[0002] Steel-lined PTFE pipes are made by using ordinary carbon steel pipes as the base material and lining them with thermoplastic PTFE plastic with excellent chemical stability. They are processed through a specific process and have both the mechanical properties of steel pipes and the high corrosion resistance, slow scaling, and resistance to microbial growth of PTFE plastic. They are ideal pipes for transporting media such as strong acids, strong alkalis, industrial salts, and highly corrosive gases.

[0003] When installing existing PTFE pipes, the threaded holes on both flanges need to be aligned one by one and then fixed with bolts. This places high demands on the accuracy and stability of the PTFE pipe connection. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a fastening method for polytetrafluoroethylene (PTFE) pipes. This method solves the problem that existing PTFE pipes require precise alignment of the threaded holes on both flanges during installation, followed by bolt fastening, which places high demands on the accuracy and stability of PTFE pipe connections.

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

[0006] A fastening polytetrafluoroethylene (PTFE) tube includes a PTFE tube body. One end of the PTFE tube body has a first connecting plate. First mounting blocks are symmetrically arranged on both sides of the first connecting plate. A first positioning hole is formed through the first mounting block. A driving groove communicating with the first positioning hole is formed inside the first mounting block. A driving post is slidably arranged in the driving groove. A second positioning hole communicating with the first positioning hole is formed through the driving post. A plug-in post is provided on the outer end face of the first mounting block. A locking groove is formed on the plug-in post. A locking block is slidably arranged in the locking groove. A connecting groove extending into the first mounting block is formed in the plug-in post. The connecting groove communicates with the driving groove and the locking groove. A connecting plate connected to the driving post and the locking block is provided in the connecting groove. The other end of the PTFE tube body has a second connecting plate. The second connecting plate has second mounting blocks corresponding to the first mounting blocks.

[0007] As a preferred embodiment of this utility model, the second mounting block is provided with a plug groove for the plug post to engage, and the inner wall of the plug groove is provided with a fastening groove for the locking block to engage.

[0008] The above technical solution utilizes the insertion post and insertion slot to provide guidance for the docking and installation of two polytetrafluoroethylene (PTFE) pipe bodies.

[0009] As a preferred embodiment of this utility model, the connecting groove is provided with a plurality of driving springs located below the connecting plate.

[0010] The above technical solution utilizes the elastic force generated by the drive spring, thereby improving the stability of the locking block in the fastening groove.

[0011] As a preferred technical solution of this utility model, guide blocks are symmetrically provided on both sides of the drive column, and guide grooves for displacement of the guide blocks are provided on both inner side walls of the drive groove.

[0012] By using the above technical solution, the displacement stroke of the drive column can be limited by the combination of the guide groove and the guide block, so that the first positioning hole and the second positioning hole can be connected.

[0013] As a preferred technical solution of this utility model, one side of the first mounting block is provided with a support frame with an L-shaped structure. A sliding groove is provided through the support frame, and a limiting rod that can be inserted into the connected first positioning hole and second positioning hole is slidably provided in the sliding groove.

[0014] By using the above technical solution and the setting of the limit rod, the displacement of the drive column can be limited.

[0015] As a preferred technical solution of this utility model, the slide groove is provided with a stop bar at both ends connected to its inner side wall, and the limiting rod is provided with a travel groove for the stop bar to move.

[0016] The above technical solution utilizes the setting of the stop bar and the travel groove to ensure that the limiting bar can maintain its connection with the support frame.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] During installation, first, press the drive column to move the connecting plate. The displacement of the connecting plate causes the locking block to move accordingly, retracting into the locking groove. At this time, the second positioning hole on the drive column connects with the first positioning hole on the first mounting block. The moving limit rod is inserted into the connected first and second positioning holes to limit the displacement of the drive column. Then, the insertion column is aligned with the insertion groove on the other PTFE tube body and inserted to initially connect the two PTFE tube bodies. Next, the limit rod inserted into the first and second positioning holes is removed to release the limitation on the drive column. Under the elastic force generated by the recovery deformation of the drive spring, the locking block is engaged in the fastening groove in the insertion groove, thus limiting the two connected PTFE tube bodies. At this time, the threaded holes on the first and second connecting plates are connected one by one, and the insertion bolts are fixed, thus completing the docking installation of the two PTFE tube bodies. This invention improves the efficiency of butt joint installation of two PTFE tube bodies, and at the same time improves the connection strength of the two PTFE tube bodies, avoiding the time and effort required for workers to adjust the threaded holes on the two PTFE tube bodies to be aligned one by one during installation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the first connecting disc of this utility model;

[0021] Figure 3 This is a partial cross-sectional view of the first connecting disc of this utility model;

[0022] Figure 4 This is a diagram showing the connection relationship between the connecting plate, drive column, and locking block of this utility model;

[0023] Figure 5 This is a schematic diagram of the support frame of this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the limiting rod of this utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the second connecting disk of this utility model;

[0026] In the diagram: 1. PTFE tube body; 2. First connecting plate; 201. First mounting block; 202. Insertion post; 203. Drive post; 204. Support frame; 205. Limiting rod; 206. Locking block; 207. First positioning hole; 208. Locking groove; 209. Drive groove; 210. Guide groove; 211. Connecting groove; 212. Second positioning hole; 213. Guide block; 214. Connecting plate; 215. Drive spring; 216. Slide groove; 217. Stop bar; 218. Traveling groove; 3. Second connecting plate; 301. Second mounting block; 302. Insertion groove; 303. Fastening groove. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] Example

[0030] This utility model provides a PTFE tube for connection and fastening, see reference. Figure 1-7 As shown, it includes a polytetrafluoroethylene (PTFE) tube body 1, one end of which is provided with a first connecting plate 2, and the other end of which is provided with a second connecting plate 3. Both the second connecting plate 3 and the first connecting plate 2 are provided with multiple threaded holes (not labeled) that are evenly distributed around each other.

[0031] refer to Figure 2-6As shown, the first connecting plate 2 has symmetrically arranged first mounting blocks 201 on both sides. A first positioning hole 207 is formed through the first mounting block 201. A drive groove 209 communicating with the first positioning hole 207 is formed inside the first mounting block 201. A drive column 203 is slidably arranged inside the drive groove 209. A second positioning hole 212 communicating with the first positioning hole 207 is formed through the drive column 203. One end of the first mounting block 201 away from the polytetrafluoroethylene tube body 1 is provided with... The plug-in post 202 has a locking groove 208, and a locking block 206 is slidably disposed in the locking groove 208. The plug-in post 202 has a connecting groove 211 extending into the first mounting block 201. The connecting groove 211 is connected to the drive groove 209 and the locking groove 208. The connecting groove 211 has a connecting plate 214 connected to the drive post 203 and the locking block 206. Through the setting of the connecting plate 214, the locking block 206 can be moved.

[0032] The connecting groove 211 is provided with a plurality of drive springs 215 located below the connecting plate 214. One end of each drive spring 215 is connected to the bottom end face of the connecting plate 214, and the other end is connected to the bottom of the connecting groove 211. The elastic force generated by the drive springs 215 improves the stability of the locking block 206 in the fastening groove 303.

[0033] The drive column 203 has symmetrical trapezoidal guide blocks 213 on both sides, and the drive groove 209 has guide grooves 210 on both inner sidewalls for the guide blocks 213 to move. The guide grooves 210 are adapted to the guide blocks 213. By matching the guide grooves 210 with the guide blocks 213, the displacement stroke of the drive column 203 can be limited, so that the first positioning hole 207 and the second positioning hole 212 can be connected after the locking block 206 retracts into the locking groove 208, which facilitates the insertion of the limiting rod 205 into the connected first positioning hole 207 and second positioning hole 212.

[0034] Combination Figure 5-6 As shown, the first mounting block 201 has an L-shaped support frame 204 on one side. A sliding groove 216 is provided through the support frame 204. A limiting rod 205 is slidably disposed in the sliding groove 216 and can be inserted into the connected first positioning hole 207 and second positioning hole 212. By setting the limiting rod 205, the displacement of the drive column 203 can be limited, so as not to affect the insertion column 202 from being engaged in the insertion slot 302.

[0035] The slide groove 216 is provided with a stop bar 217 connected to its inner sidewall at both ends, and the limiting rod 205 is provided with a travel groove 218 for the stop bar 217 to move. The stop bar 217 and the travel groove 218 are provided to keep the limiting rod 205 connected to the support frame 204.

[0036] refer to Figure 7 As shown, the second connecting plate 3 is provided with a second mounting block 301 corresponding to the first mounting block 201. The second mounting block 301 is provided with a plug groove 302 for the plug post 202 to engage. The inner side wall of the plug groove 302 is provided with a fastening groove 303 for the locking block 206 to engage. The setting of the plug post 202 and the plug groove 302 provides guidance for the docking installation of the two polytetrafluoroethylene pipe bodies 1, and at the same time improves the connection strength of the two polytetrafluoroethylene pipe bodies 1.

[0037] The working principle and operating steps of this utility model are as follows:

[0038] During installation, first, press the drive column 203 to move the connecting plate 214. The displacement of the connecting plate 214 causes the locking block 206 to move accordingly, causing the locking block 206 to retract into the locking groove 208. At this time, the second positioning hole 212 on the drive column 203 is connected to the first positioning hole 207 on the first mounting block 201. The moving limit rod 205 is inserted into the connected first positioning hole 207 and second positioning hole 212, thereby limiting the displacement of the drive column 203. Then, the insertion column 202 is aligned with the insertion groove 302 on another polytetrafluoroethylene tube body 1 for insertion. The two PTFE tube bodies 1 are initially connected. Next, the limiting rods 205, inserted into the first positioning hole 207 and the second positioning hole 212, are removed, releasing the limiting effect on the drive column 203. Under the elastic force generated by the recovery deformation of the drive spring 215, the locking block 206 engages with the fastening groove 303 in the insertion groove 302, thus limiting the two connected PTFE tube bodies 1. At this time, the threaded holes on the first connecting plate 2 and the second connecting plate 3 are connected one by one, and the insertion bolts are used for fixing, completing the docking installation of the two PTFE tube bodies 1. This invention improves the docking installation efficiency of the two PTFE tube bodies 1 and also increases the connection strength, avoiding the time-consuming and laborious process of adjusting the threaded holes on the two PTFE tube bodies 1 to be aligned during installation.

[0039] 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.

[0040] 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 fastening polytetrafluoroethylene (PTFE) tube, comprising a PTFE tube body (1), characterized in that: One end of the polytetrafluoroethylene tube body (1) is provided with a first connecting plate (2). First mounting blocks (201) are symmetrically arranged on both sides of the first connecting plate (2). A first positioning hole (207) is provided through the first mounting block (201). A driving groove (209) communicating with the first positioning hole (207) is provided inside the first mounting block (201). A driving post (203) is slidably arranged in the driving groove (209). A second positioning hole (212) communicating with the first positioning hole (207) is provided through the driving post (203). A plug-in post (202) is provided on the outer end face of the first mounting block (201). A locking groove (208) is provided on the column (202), and a locking block (206) is slidably provided in the locking groove (208). A connecting groove (211) extending into the first mounting block (201) is provided in the plug-in column (202). The connecting groove (211) is connected to the drive groove (209) and the locking groove (208). A connecting plate (214) connected to the drive column (203) and the locking block (206) is provided in the connecting groove (211). A second connecting plate (3) is provided at the other end of the polytetrafluoroethylene tube body (1). A second mounting block (301) corresponding to the first mounting block (201) is provided on the second connecting plate (3).

2. The polytetrafluoroethylene pipe for connection and fastening according to claim 1, characterized in that: The second mounting block (301) has a plug groove (302) for the plug post (202) to engage, and the inner side wall of the plug groove (302) has a fastening groove (303) for the locking block (206) to engage.

3. The polytetrafluoroethylene pipe for connection and fastening according to claim 1, characterized in that: The connecting groove (211) is provided with a plurality of driving springs (215) located below the connecting plate (214).

4. The polytetrafluoroethylene pipe for connection and fastening according to claim 1, characterized in that: The drive column (203) is symmetrically provided with guide blocks (213) on both sides, and the drive groove (209) is provided with guide grooves (210) on both inner sidewalls for the displacement of the guide blocks (213).

5. The polytetrafluoroethylene pipe for connection and fastening according to claim 1, characterized in that: The first mounting block (201) has an L-shaped support frame (204) on one side. A sliding groove (216) is provided through the support frame (204). A limiting rod (205) that can be inserted into the connected first positioning hole (207) and second positioning hole (212) is slidably provided in the sliding groove (216).

6. The polytetrafluoroethylene pipe for connection and fastening according to claim 5, characterized in that: The slide groove (216) is provided with a stop bar (217) with both ends connected to its inner sidewall, and the limiting rod (205) is provided with a travel groove (218) for the stop bar (217) to move.

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