Corrosion-resistant polytetrafluoroethylene sealing joint

Abstract

The utility model relates to the technical field of sealing joints, and provides a corrosion-resistant polytetrafluoroethylene sealing joint which comprises a joint body and flanges fixedly connected to the two ends of the joint body and further comprises a sealing block, an elastic sealing mechanism, a first connecting ring and a second connecting ring. The sealing block is used for connecting the connector body and a pipeline, the elastic sealing mechanism is arranged on the flange and used for sealing the pipeline and the connector body which are connected together, and the first connecting ring is detachably connected to the outer wall of the connector body through the rotating ring and used for fixing the connector body. According to the technical scheme, the technical problem that in the prior art, due to the fact that the friction coefficient of a connector is low, the connector is prone to slipping off when the connector is placed on a pipeline to be sealed and fixed during installation is solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to the technical field of sealing joint, in particular, to a corrosion-resistant polytetrafluoroethylene sealing joint. BACKGROUND

[0002] The corrosion-resistant polytetrafluoroethylene sealing joint is a sealing piece for connecting pipelines or equipment, mainly made of polytetrafluoroethylene (PTFE), used for conveying pipelines of strong corrosive media, suitable for high-clean environments due to non-toxic material, and used for high-purity medium conveying systems. The corrosion-resistant polytetrafluoroethylene sealing joint is widely used in chemical industry, pharmaceutical industry, food industry and semiconductor industry due to its excellent corrosion resistance and high temperature resistance.

[0003] Polytetrafluoroethylene has a very low friction coefficient, which makes the sealing head easy to slip when installed in narrow places in pipeline equipment. When one installation head is installed, it is easy to slip during fixing, and it is easy to fall into the pipeline or other space. When the installation area is small, only one worker can install it sometimes, and it is difficult to find after falling, and it is difficult to accurately fix at the required position, increasing the difficulty of positioning. CONTENT OF THE INVENTION

[0004] To overcome the above defects, the embodiments of the present disclosure provide a corrosion-resistant polytetrafluoroethylene sealing joint, which solves the technical problem that the sealing joint is easy to slip when fixed after being placed on the pipeline during installation due to the low friction coefficient of the joint.

[0005] According to one aspect, at least one embodiment of the present disclosure provides a corrosion-resistant polytetrafluoroethylene sealing joint, comprising a joint body and a flange, the flange is fixedly connected to both ends of the joint body, further comprising:

[0006] A sealing block is used to connect the joint body and the pipeline;

[0007] An elastic sealing mechanism is arranged on the flange, and the elastic sealing mechanism is used to seal the connected pipeline and the joint body;

[0008] A connecting ring one is detachably connected to the outer wall of the joint body through a rotating ring, and the connecting ring one is used to fix the joint body;

[0009] A connecting ring two is rotatably connected to the rotating ring through a rotating column, and the connecting ring two is also used to fix the joint body.

[0010] Preferably, the elastic sealing mechanism comprises:

[0011] mounting grooves are formed in the outer wall of the flange;

[0012] a spring is fixedly connected in the mounting groove, and the sealing block is fixedly connected to the other end of the spring;

[0013] a sliding assembly is arranged on the outer wall of the flange.

[0014] Preferably, the sliding assembly comprises:

[0015] two sliding grooves are formed in the outer wall of the flange;

[0016] a sliding block is slidingly fitted in the sliding groove;

[0017] a sealing ring is fixedly connected to the outer side wall of the two sliding blocks;

[0018] two locking bolts are threadedly connected to the outer wall of the sealing ring.

[0019] Preferably, the swivel ring is provided with a fixing mechanism, and the fixing mechanism comprises:

[0020] a fixing plate is fixedly connected to the outer wall of the swivel ring;

[0021] a rotating groove is formed in the bottom of the fixing plate;

[0022] a rotating plate is rotatably connected in the rotating groove;

[0023] a connecting plate is fixedly connected to the bottom of the rotating plate;

[0024] a support assembly is arranged at the bottom of the connecting plate.

[0025] Preferably, the support assembly comprises:

[0026] a support rod is fixedly connected to both ends of the bottom of the connecting plate;

[0027] a telescopic rod is slidingly fitted on the outer wall of the support rod, and the outer wall of the telescopic rod is threadedly connected with the locking bolt;

[0028] a bottom plate is fixedly connected to the bottom of the telescopic rod.

[0029] Further, the diameter of the sealing block is smaller than the diameter of the mounting groove.

[0030] Further, the swivel ring is fixedly connected to both ends of the connecting ring.

[0031] Furthermore, the rotating column is fixedly connected to the outer wall of the second connecting ring, and the rotating column is rotatably connected inside the rotating ring.

[0032] Furthermore, the sealing block is configured as a cone.

[0033] Furthermore, the width of the sealing ring is longer than the outer wall of the flange.

[0034] The beneficial effects of the embodiments disclosed herein are as follows:

[0035] In this disclosure, when connecting a corrosion-resistant PTFE sealing joint to a pipeline, the first step is to fix the connecting rings one and two to the joint body at the required height for connection with the pipeline. Then, the support assembly is opened, and the joint body is supported next to the pipeline. Next, the sealing block is inserted into the pipeline, and the sliding assembly secures the pipeline to the joint body and provides a reverse seal. Finally, the connecting rings one and two are removed from the joint body. Compared to existing technologies, due to the low coefficient of friction of the joint, it is prone to slippage when placed on the pipeline for sealing during installation. The improved joint can be fixed to the ground by the support assembly, and then the sealing block is inserted into the pipeline for fixation. This effectively improves the stability of the joint body during installation and reduces the likelihood of slippage. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0037] Figure 1 This is a schematic diagram of the overall structure of a corrosion-resistant polytetrafluoroethylene sealing joint in one embodiment of the present disclosure;

[0038] Figure 2 for Figure 1 A schematic diagram of the structure of the connector body, flange and sealing block in the embodiment;

[0039] Figure 3 for Figure 1 A schematic diagram of the structure of the flange body, spring and swivel groove in the embodiment;

[0040] Figure 4 for Figure 1 The schematic diagram of the structure of the rotating plate, support rod and telescopic rod in the embodiment is shown.

[0041] In the figure: 1, joint body; 2, flange; 3, sealing block; 4, connecting ring I; 5, rotating ring; 6, connecting ring II; 7, mounting groove; 8, spring; 9, sliding groove; 10, sliding block; 11, sealing ring; 12, locking bolt; 13, fixed plate; 14, rotating groove; 15, rotating plate; 16, connecting plate; 17, support rod; 18, telescopic rod; 19, bottom plate; 20, rotating column. DETAILED DESCRIPTION

[0042] The present disclosure will be further described below in conjunction with the drawings and examples. It can be understood that the specific examples described herein are only used to explain the present disclosure, and not to limit the present disclosure.

[0043] In order to make the drawing simple, only the parts related to the disclosure are shown in each figure, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some figures, only one of the parts with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0044] In this paper, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting" and "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0045] In the present disclosure, unless otherwise specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0046] In the description of the present embodiment, the terms "up", "down", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, which is only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0047] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0048] As shown in Figures 1-4 The corrosion-resistant polytetrafluoroethylene sealing joint in an embodiment of the present disclosure includes a joint body 1 and a flange 2 fixedly connected to both ends of the joint body 1, a sealing block 3 for connecting the joint body 1 and the pipeline, an elastic sealing mechanism provided on the flange 2 for sealing the connected pipeline and joint body 1, a connecting ring one 4 detachably connected to the outer wall of the joint body 1 through a rotating ring 5, the connecting ring one 4 being used to fix the joint body 1, a connecting ring two 6 rotatably connected to the rotating ring 5 through a rotating column 20, the connecting ring two 6 also being used to fix the joint body 1, the rotating ring 5 being fixedly connected to both ends of the connecting ring one 4, the rotating column 20 being fixedly connected to the outer wall of the connecting ring two 6 and rotatably connected to the rotating ring 5, and the sealing block 3 being designed as a cone, the sealing block 3 being designed in the form of a conical surface fit, the relative positions of the components being quickly and accurately determined through the guiding and limiting effects of the conical surface during assembly, and quick positioning being achieved.

[0049] When the corrosion-resistant polytetrafluoroethylene sealing joint is used to connect and install the pipeline, the worker first needs to determine the position of the pipeline, then fix the connecting ring one 4 and the connecting ring two 6 on the joint body 1, and then fix the fixing mechanism on the ground, the rotating ring 5 being provided with a fixing mechanism including a fixed plate 13, a rotating groove 14, a rotating plate 15, a connecting plate 16 and a support assembly, the fixed plate 13 being fixedly connected to the outer wall of the rotating ring 5, the bottom of the fixed plate 13 being provided with the rotating groove 14, the rotating plate 15 being rotatably connected in the rotating groove 14, the bottom of the rotating plate 15 being fixedly connected with the connecting plate 16, the support assembly being arranged at the bottom of the connecting plate 16, the support assembly including a support rod 17, an extension rod 18 and a bottom plate 19, the support rod 17 being fixedly connected to both ends of the bottom of the connecting plate 16, the extension rod 18 being slidingly fitted on the outer wall of the support rod 17 and having a locking bolt 12 threadedly connected to the outer wall of the extension rod 18, and the bottom plate 19 being fixedly connected to the bottom of the extension rod 18, the locking bolt 12 being loosened, the extension rod 18 being slid on the support rod 17, and then the bottom plate 19 being placed on the ground, the extension rod 18 being slid to the required height, and then the locking bolt 12 being tightened, the joint body 1 being supported by the support assembly and the fixing mechanism placed on the ground, and the worker being able to avoid holding the joint body 1 all the time.

[0050] At this time, the elastic mechanism can drive the joint body 1 to be inserted into the pipeline correspondingly, the elastic sealing mechanism comprises a mounting groove 7, a spring 8 and a sliding assembly, a plurality of mounting grooves 7 are formed in the outer wall of the flange 2, the spring 8 is fixedly connected in the mounting groove 7, and the sealing block 3 is fixedly connected to the other end of the spring 8, the sliding assembly is arranged on the outer wall of the flange 2, the diameter of the sealing block 3 is smaller than the diameter of the mounting groove 7, because when the sealing block 3 is installed in the pipeline, one sealing block 3 is installed in the pipeline first, and then the remaining sealing blocks 3 are installed correspondingly, the spring 8 can retract the sealing block 3 into the mounting groove 7, and after the first sealing block 3 is installed, the remaining sealing blocks 3 are automatically ejected into the pipeline to be fixed after the joint body 1 is rotated to make the remaining sealing blocks 3 close to the corresponding mounting grooves 7, the sliding assembly comprises a sliding groove 9, a sliding block 10, a sealing ring 11 and a locking bolt 12, two sliding grooves 9 are formed in the outer wall of the flange 2, the sliding block 10 is slidingly fitted in the sliding groove 9, the sealing ring 11 is fixedly connected to the outer side wall of the two sliding blocks 10, and the outer wall of the sealing ring 11 is threadedly connected with the two locking bolts 12, after the sealing block 3 is inserted into the pipeline correspondingly, the remaining sealing blocks 3 are retracted into the mounting groove 7 through the elastic deformation of the spring 8, the joint body 1 is rotated, the other sealing blocks 3 are inserted into the pipeline correspondingly through the rotation of the connecting ring one 4 and the connecting ring two 6, the locking bolt 12 is loosened, then the sealing ring 11 can be slid to between the flange 2 and the pipeline, the locking bolt 12 is tightened to fix the pipeline and the flange 2, and the other end of the flange 2 is connected to the pipeline in the same way, and after the sealing property is checked to meet the standard, the pipeline can be used.

[0051] Working principle: when connecting and installing the pipeline by using the corrosion-resistant polytetrafluoroethylene sealing joint, first, the worker needs to determine the position of the pipeline, then fix the connecting ring one 4 and the connecting ring two 6 on the joint body 1, at this time, adjust the support rod 17 and the telescopic rod 18 at the bottom of the rotating ring 5, loosen the locking bolt 12 on the telescopic rod 18, slide the telescopic rod 18 on the support rod 17, when the telescopic rod 18 slides to the required height, check whether the joint body 1 is parallel to the pipeline, place the bottom plate 19 on the ground to support, then tighten the locking bolt 12, fix the height, rotate the rotating plate 15 in the rotating groove 14 through the position of the pipeline, rotate to the required direction, then insert the sealing block 3 into the pipeline, first insert one sealing block 3 into the pipeline, at this time, the remaining sealing blocks 3 will be compressed back to the installation groove 7 under pressure, when the first sealing block 3 is installed, rotate the joint body 1 in the connecting ring one 4 and the connecting ring two 6, rotate to the remaining sealing blocks 3 are inserted into the pipeline, loosen the locking bolt 12 on the sealing ring 11, slide the sealing ring 11 to the flange 2 and the pipeline connection, tighten the locking bolt 12 to fix the seal, then the other end of the joint body 1 can also be sealed and fixed with the pipeline, then remove the connecting ring one 4 and the connecting ring two 6 from the joint body 1, check whether the joint body 1 and the pipeline connection meet the sealing requirements, then it can be used.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, not to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present disclosure, which should be covered in the scope of the claims of the present disclosure.

Claims

1. A corrosion-resistant polytetrafluoroethylene sealing joint comprising a joint body (1) and flanges (2) fixedly connected to both ends of the joint body (1), characterized in that, Also include: The sealing block (3) is used for connecting the joint body (1) with the pipeline; The elastic sealing mechanism is arranged on the flange (2), and the elastic sealing mechanism is used for sealing the pipeline and the joint body (1) connected together; The connecting ring one (4) is detachably connected to the outer wall of the joint body (1) through the rotating ring (5), and the connecting ring one (4) is used for fixing the joint body (1); The connecting ring two (6) is rotatably connected to the rotating ring (5) through the rotating column (20), and the connecting ring two (6) is also used for fixing the joint body (1).

2. A corrosion resistant polytetrafluoroethylene sealing joint according to claim 1, wherein The elastic sealing mechanism comprises: A plurality of mounting grooves (7) are formed in the outer wall of the flange (2); The spring (8) is fixedly connected in the mounting groove (7), and the sealing block (3) is fixedly connected to the other end of the spring (8); The sliding assembly is arranged on the outer wall of the flange (2).

3. A corrosion resistant polytetrafluoroethylene sealing joint according to claim 2, wherein The sliding assembly comprises: Two slide grooves (9) are formed in the outer wall of the flange (2); The sliding block (10) is slidably connected in the slide groove (9); The sealing ring (11) is fixedly connected to the outer side wall of the two sliding blocks (10); The outer wall of the sealing ring (11) is threadedly connected with two locking bolts (12).

4. A corrosion resistant polytetrafluoroethylene sealing joint according to claim 3, wherein The rotating ring (5) is provided with a fixing mechanism, and the fixing mechanism comprises: The fixing plate (13) is fixedly connected to the outer wall of the rotating ring (5); The rotating groove (14) is formed in the bottom of the fixing plate (13); The rotating plate (15) is rotatably connected in the rotating groove (14); The connecting plate (16) is fixedly connected to the bottom of the rotating plate (15); The support assembly is arranged on the bottom of the connecting plate (16).

5. A corrosion resistant polytetrafluoroethylene sealing joint according to claim 4, wherein The support assembly comprises: The support rod (17) is fixedly connected to both ends of the bottom of the connecting plate (16); The telescopic rod (18) is slidably connected to the outer wall of the support rod (17), and the outer wall of the telescopic rod (18) is threadedly connected with the locking bolt (12); The bottom plate (19) is fixedly connected to the bottom of the telescopic rod (18).

6. A corrosion resistant polytetrafluoroethylene sealing joint according to claim 5, wherein The diameter of the sealing block (3) is smaller than the diameter of the mounting groove (7).

7. A corrosion resistant polytetrafluoroethylene sealing joint according to claim 6, wherein The rotating ring (5) is fixedly connected to both ends of the connecting ring one (4).

8. A corrosion resistant polytetrafluoroethylene sealing joint according to claim 7, wherein The rotating column (20) is fixedly connected to the outer wall of the connecting ring two (6), and the rotating column (20) is rotatably connected in the rotating ring (5).

9. A corrosion resistant polytetrafluoroethylene sealing joint according to claim 8, wherein The sealing block (3) is arranged as a cone.

10. A corrosion resistant polytetrafluoroethylene sealing joint according to claim 9, wherein The width of the sealing ring (11) is longer than the outer wall of the flange (2).

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