Teflon break-away valve

Abstract

The utility model discloses a teflon break-away valve which comprises a carbon steel valve body, a teflon valve body is connected inside the carbon steel valve body in a sleeved mode, a teflon spring is arranged inside the teflon valve body, a teflon valve clack is connected inside the teflon spring in a sleeved mode, one end of the teflon valve clack penetrates through a teflon check ring, and the other end of the teflon valve clack is connected with a teflon connecting rod in a clamped mode. According to the teflon break-away valve, the teflon valve body is sleeved with the carbon steel valve body, the teflon spring is arranged in the teflon valve body, meanwhile, the teflon valve clack is sleeved with the teflon spring, one end of the teflon valve clack penetrates through the teflon check ring, the other end of the teflon valve clack is connected with the teflon connecting rod in a clamped mode, and at the moment, the teflon break-away valve is made of teflon; the strong acid and strong alkali resistant effect of the polytetrafluoroethylene material is utilized, so that an overflowing medium in the teflon break-away valve can only make contact with the polytetrafluoroethylene, the teflon break-away valve has the good strong acid and strong alkali resistant effect, and then the service life of the teflon valve body is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of break-away valves, and particularly relates to a PTFE break-away valve. Background Art

[0002] A break-away valve is a device used to prevent leakage accidents caused by accidental pipeline breakage. The break-away valve can prevent leakage accidents caused by accidental pipeline breakage, and the applicable fields include ship-to-shore unloading, tank loading and unloading on highways and railways, and other fixed and mobile fluid storage devices, such as the connection between a loading arm and a fluid transfer arm and a transport carrier.

[0003] The break-away valves currently available on the market have the following problems in actual use: In actual use, since the traditional break-away valve is made of iron or steel, it does not have corrosion resistance itself. When the liquid passing through the traditional break-away valve during use is corrosive, after long-term use, the traditional break-away valve will be corroded, thereby reducing the service life of the break-away valve. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a PTFE break-away valve to solve the technical problems raised in the background art.

[0005] To achieve the above purpose, the specific technical solution of the utility model is as follows: A PTFE break-away valve includes a carbon steel valve body. A PTFE valve body is sleeved inside the carbon steel valve body. A PTFE spring is arranged inside the PTFE valve body. A PTFE valve flap is sleeved inside the PTFE spring. One end of the PTFE valve flap penetrates through a PTFE retaining ring, and the other end of the PTFE valve flap is clamped with a PTFE connecting rod. The PTFE valve flaps are symmetrically distributed, and both ends of the PTFE connecting rod are clamped with PTFE valve flaps.

[0006] Preferably, a flange ring is clamped inside the carbon steel valve body. Locking bolts are arranged outside the carbon steel valve body. The locking bolts penetrate through the flange ring, and one end of the locking bolts is embedded in the intermediate carbon steel valve body.

[0007] Preferably, PTFE inside the valve body is clamped inside the intermediate carbon steel valve body. One end surface of the PTFE inside the valve body is attached to the PTFE valve body, and a valve body break-away hoop is sleeved on the surface of the intermediate carbon steel valve body.

[0008] Preferably, the PTFE inside the valve body is symmetrically distributed. The surface of the PTFE inside the valve body is attached to a PTFE outer flip seal, and a second buckle is sleeved on the surface of the PTFE outer flip seal.

[0009] Preferably, one end of the second buckle is connected to a hexagon positive and negative screw through an inner hexagon screw. The other end of the hexagon positive and negative screw is connected to a first buckle through an inner hexagon screw. The first buckle is connected to the second buckle through a locking screw.

[0010] Preferably, a clamping cone is provided inside the first buckle and the second buckle. One end of the cone is connected to the lid, the side of the lid is attached to the first buckle and the second buckle, a nut is installed at the other end of the lid, and a pull ring is sleeved inside the nut.

[0011] A kind of PTFE pull - off valve of the present utility model has the following advantages: for this kind of PTFE pull - off valve, a PTFE valve body is sleeved inside a carbon steel valve body, a PTFE spring is provided inside the PTFE valve body, a PTFE valve flap is sleeved inside the PTFE spring, one end of the PTFE valve flap penetrates through the PTFE retaining ring, the other end of the PTFE valve flap is clamped with a PTFE connecting rod, and the PTFE valve flaps are symmetrically distributed. Both ends of the PTFE connecting rod are clamped with PTFE valve flaps. At this time, the PTFE pull - off valve is made of polytetrafluoroethylene. By using the effect of polytetrafluoroethylene material's resistance to strong acids and strong alkalis, the medium flowing through inside the PTFE pull - off valve can only contact polytetrafluoroethylene, so that the PTFE pull - off valve has good resistance to strong acids and strong alkalis, thereby improving the service life of the PTFE valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0013] Figure 1 It is the overall structure schematic diagram of the present utility model;

[0014] Figure 2 It is the schematic diagram of the lid structure of the present utility model;

[0015] Figure 3 It is the schematic diagram of the PTFE retaining ring structure of the present utility model;

[0016] Figure 4 It is the schematic diagram of the PTFE outward - turning seal structure of the present utility model.

[0017] Marking description in the figure: 1. Carbon steel valve body; 2. PTFE valve body; 3. Locking bolt; 4. Flange ring; 5. PTFE valve flap; 6. PTFE retaining ring; 7. PTFE spring; 8. Intermediate carbon steel valve body; 9. Valve body disconnecting hoop; 10. PTFE inside the valve body; 11. PTFE outward - turning seal; 12. PTFE connecting rod; 13. Hexagonal positive and negative screw; 14. First buckle; 15. Allen screw; 16. Second buckle; 17. Pull ring; 18. Locking screw; 19. Nut; 20. Cone; 21. Lid. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0019] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "length", "vertical", "horizontal", "top", "bottom", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the embodiments of the present invention.

[0020] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0021] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0022] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the embodiments of the present invention. In addition, the embodiments of the present invention may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0023] To better understand the purpose, structure, and function of the present invention, the following further describes a tetrafluoro break valve of the present invention in detail with reference to the drawings.

[0024] Such as Figures 1-4As shown in the figure, a kind of PTFE breakaway valve of the utility model includes a carbon steel valve body 1. A PTFE valve body 2 is sleeved inside the carbon steel valve body 1. A PTFE spring 7 is arranged inside the PTFE valve body 2. A PTFE valve flap 5 is sleeved inside the PTFE spring 7. By installing the PTFE spring 7 and making the PTFE spring 7 with polytetrafluoroethylene as the material, the PTFE spring 7 can have strong acid and strong alkali resistance, which is very convenient to use. One end of the PTFE valve flap 5 penetrates through the PTFE retaining ring 6, and the other end of the PTFE valve flap 5 is clamped with the PTFE connecting rod 12. The PTFE valve flaps 5 are symmetrically distributed. Both ends of the PTFE connecting rod 12 are clamped with the PTFE valve flaps 5. By making the PTFE breakaway valve with polytetrafluoroethylene, using the strong acid and strong alkali resistance effect of the polytetrafluoroethylene material, the medium flowing through inside the PTFE breakaway valve can only contact polytetrafluoroethylene, making the PTFE breakaway valve have good strong acid and strong alkali resistance, and thus improving the service life of the PTFE valve body 2.

[0025] A flange ring 4 is clamped inside the carbon steel valve body 1. A locking bolt 3 is arranged outside the carbon steel valve body 1. The locking bolt 3 penetrates through the flange ring 4, and one end of the locking bolt 3 is embedded into the middle carbon steel valve body 8. By installing the locking bolt 3, the locking bolt 3 can be used to prevent the over-tight locking between the middle carbon steel valve body 8 and the flange ring 4, so that it is controlled within the bearing capacity range of the middle carbon steel valve body 8, and the protection is stronger during use.

[0026] A valve body internal PTFE 10 is clamped inside the middle carbon steel valve body 8. One end surface of the valve body internal PTFE 10 is attached to the PTFE valve body 2. A valve body breakaway hoop 9 is sleeved on the surface of the middle carbon steel valve body 8. By installing the valve body breakaway hoop 9, when it is necessary to disconnect the PTFE breakaway valve, the disconnection connection of the PTFE breakaway valve can be controlled through the valve body breakaway hoop 9, which is very convenient to use.

[0027] The valve body internal PTFE 10 is symmetrically distributed. The surface of the valve body internal PTFE 10 is attached to the PTFE outer turn seal 11. A second snap 16 is sleeved on the surface of the PTFE outer turn seal 11. By installing the PTFE outer turn seal 11, the PTFE outer turn seal 11 can provide a sealing effect for the PTFE breakaway valve, so that the PTFE breakaway valve will not leak during use, and the sealing performance is stronger during use.

[0028] One end of the second snap 16 is connected to the hexagon positive and negative thread 13 through the hexagon socket head cap screw 15. The other end of the hexagon positive and negative thread 13 is connected to the first snap 14 through the hexagon socket head cap screw 15. The first snap 14 is connected to the second snap 16 through the locking screw 18. By installing the hexagon socket head cap screw 15, the hexagon socket head cap screw 15 can be used to connect the first snap 14 and the second snap 16. By providing a rotatable effect for the first snap 14 and the second snap 16, it is very convenient to use.

[0029] The first buckle 14 and the second buckle 16 are internally connected to the clamping cone 20. One end of the cone 20 is connected to the lid 21. The side of the lid 21 is attached to the first buckle 14 and the second buckle 16. The other end of the lid 21 is installed with a nut 19. The inside of the nut 19 is sleeved with a pull ring 17. By installing the pull ring 17, when it is necessary to break the copper wire, the pull ring 17 can be used as the force application point, and the copper wire can be directly broken through the pull ring 17, which is very convenient to use.

[0030] The working principle of this PTFE break-off valve: When using the PTFE break-off valve, the PTFE break-off valve should first be installed in a suitable position, and then the PTFE break-off valve can be used normally. When using the PTFE break-off valve, the flowing medium will pass through the PTFE break-off valve. The internal structure of the PTFE break-off valve is made of polytetrafluoroethylene material. By making the PTFE break-off valve with polytetrafluoroethylene, and using the effect of polytetrafluoroethylene material's resistance to strong acids and alkalis, the flowing medium inside the PTFE break-off valve can only contact polytetrafluoroethylene, making the PTFE break-off valve have good resistance to strong acids and alkalis, thereby increasing the service life of the PTFE valve body 2. During the use of the PTFE break-off valve, when it is necessary to disconnect the PTFE break-off valve, the connection of the PTFE break-off valve can be controlled to be disconnected through the valve body disconnecting hoop 9, which is very convenient to use. At the same time, when using the PTFE break-off valve and it is necessary to break the copper wire, the pull ring 17 can be used as the force application point, and the copper wire can be directly broken through the pull ring 17, which is very convenient to use.

[0031] It can be understood that the present invention is described through some embodiments. As is known to those skilled in the art, without departing from the spirit and scope of the present invention, various changes or equivalent replacements can be made to these features and embodiments. Additionally, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A polytetrafluoroethylene breakaway valve, comprising a carbon steel valve body (1), characterized in that: The carbon steel valve body (1) is internally sleeved with a polyfluoroethylene valve body (2), a polyfluoroethylene spring (7) is provided inside the polyfluoroethylene valve body (2), a polyfluoroethylene valve flap (5) is internally sleeved with the polyfluoroethylene spring (7), one end of the polyfluoroethylene valve flap (5) passes through a polyfluoroethylene retaining ring (6), and the other end of the polyfluoroethylene valve flap (5) is clamped with a polyfluoroethylene connecting rod (12), the polyfluoroethylene valve flap (5) is symmetrically distributed, and both ends of the polyfluoroethylene connecting rod (12) are clamped with the polyfluoroethylene valve flap (5).

2. The polytetrafluoroethylene breakaway valve according to claim 1, characterized in that: The carbon steel valve body (1) is internally clamped with a flange ring (4), and the carbon steel valve body (1) is externally provided with a locking bolt (3), the locking bolt (3) passes through the flange ring (4), and one end of the locking bolt (3) is embedded in the middle carbon steel valve body (8).

3. The polytetrafluoroethylene breakaway valve according to claim 2, characterized in that: The middle carbon steel valve body (8) is internally clamped with the polytetrafluoroethylene (10) inside the valve body, one end of the surface of the polytetrafluoroethylene (10) inside the valve body is attached to the polytetrafluoroethylene valve body (2), and the surface of the middle carbon steel valve body (8) is sleeved with the valve body disconnect clamp (9).

4. The polytetrafluoroethylene breakaway valve according to claim 3, characterized in that: The tetrafluoroethylene (10) inside the valve body is symmetrically distributed, the surface of the tetrafluoroethylene (10) inside the valve body is attached to the tetrafluoroethylene outward seal (11), and the surface of the tetrafluoroethylene outward seal (11) is sleeved with a second buckle (16).

5. The polytetrafluoroethylene breakaway valve according to claim 4, characterized in that: One end of the second buckle (16) is connected to the hexagonal positive and negative thread (13) via a hexagonal screw (15), and the other end of the hexagonal positive and negative thread (13) is connected to the first buckle (14) via a hexagonal screw (15), and the first buckle (14) is connected to the second buckle (16) via a locking screw (18).

6. The polytetrafluoroethylene breakaway valve according to claim 5, characterized in that: The first buckle (14) and the second buckle (16) are internally engaged with a cone (20); one end of the cone (20) is connected to a cover (21); the side of the cover (21) is attached to the first buckle (14) and the second buckle (16); a nut (19) is installed at the other end of the cover (21); and the pull ring (17) is internally sleeved on the nut (19).

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