A cable operated emergency pull-off valve

Abstract

The utility model discloses a cable formula emergency pull -off valve relates to pull -off valve technical field, including left pull -off valve and right pull -off valve, the adjacent flange disc adjacent side of left pull -off valve and right pull -off valve abuts, the adjacent flange disc outside surface of left pull -off valve and right pull -off valve abuts and has the card piece, the left end lower inside surface of card piece is connected with screw, and the right -end of screw abuts with left pull -off valve. The utility model discloses a screw and card piece are set up, utilize the thread connection of screw and card piece and adjust, make the extrusion of screw to left pull -off valve, make the extrusion of card piece to right pull -off valve, avoid uneven stress, guarantee the safety of surrounding personnel, through setting up conical block and third elastic part, and the third elastic part of being compressed extrude conical block, and the bevel of conical block extrude separation left pull -off valve and right pull -off valve, make pull -off valve can separate quickly to improve the use effect of cable formula emergency pull -off valve.

Description

Technical Field

[0001] This utility model relates to the field of breakaway valve technology, specifically a cable-operated emergency breakaway valve. Background Technology

[0002] Cable-operated emergency disconnect valves are key equipment for ensuring safe operation in industrial fluid transport systems. They are widely used in loading and unloading operations of media such as petroleum, chemicals, natural gas, and cryogenic liquids (e.g., LNG), and are particularly suitable for flexible connections between tank trucks and storage tanks, and between loading arms and transport pipelines. Their core function is to quickly disconnect the valve body via a cable in the event of accidental pulling (such as vehicle misdirection or excessive hose stretching), cutting off the media transport path and preventing media leakage, equipment damage, and safety accidents caused by pipeline dragging or rupture.

[0003] Existing breakaway valves are prone to uneven and inconsistent force distribution, which can easily lead to accidental separation and turn safety equipment into a safety hazard. Furthermore, in low-temperature media transportation scenarios, the valve body mating surface is prone to ice layer adhesion due to condensation. When separating, the adhesion of the ice layer must be overcome first, which prolongs the separation time and significantly increases the safety hazard. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a cable-operated emergency break valve, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: it includes a left disconnect valve and a right disconnect valve, the adjacent flanges of the left disconnect valve and the right disconnect valve abut against each other, the outer sides of the adjacent flanges of the left disconnect valve and the right disconnect valve are abutted by a retaining member, the lower inner side of the left end of the retaining member is threaded with a screw, and the right end of the screw abuts against the left disconnect valve;

[0008] The left and right break-off valves have extrusion grooves inside their adjacent flanges. A third elastic element is provided on the side of the extrusion groove away from the clamping element. A conical block is fixedly connected to the other end of the third elastic element. The inclined surface of the conical block near the clamping element abuts against the left and right break-off valves.

[0009] Optionally, a support frame is fixedly connected to the left inner side of the left disconnect valve, and a support frame is fixedly connected to the right inner side of the right disconnect valve.

[0010] Optionally, a fixing cylinder is fixedly connected to the opposing sides of the two support frames, and a second elastic element is fixedly connected to the inner wall of the fixing cylinder near the side of the support frame, and a sealing plug is fixedly connected to the other end of the second elastic element.

[0011] Optionally, the outer side of the fixed cylinder is slidably connected to the inner side of the sealing plug, a polytetrafluoroethylene sealing gasket is provided on the outer periphery of the opposing sides of the sealing plug, and a connecting column is fixedly connected to the center of the opposing sides of the two sealing plugs.

[0012] Optionally, a fixing ring is fixedly connected to the right side of the outer surface of the right break valve, a first elastic element is fixedly connected to the left side of the fixing ring, and a sliding ring is fixedly connected to the other end of the first elastic element.

[0013] Optionally, the inner side of the sliding ring is slidably connected to the right disconnect valve, the left inclined surface of the sliding ring abuts against the right inclined surface of the clamp, and the upper and lower parts of the right corner of the outer periphery of the sliding ring are fixedly connected with a pull rope.

[0014] This utility model provides a cable-operated emergency break valve, which has the following advantages:

[0015] 1. This cable-operated emergency disconnect valve uses screws and clamps for adjustment. The screws press against the left disconnect valve, and the clamps press against the right disconnect valve, thus avoiding uneven force and ensuring the safety of surrounding personnel.

[0016] 2. This cable-operated emergency disconnect valve, by setting a conical block and a third elastic element, the compressed third elastic element squeezes the conical block, and the inclined surface of the conical block squeezes and separates the left disconnect valve and the right disconnect valve, so that the disconnect valve can be separated quickly, thereby improving the use effect of the cable-operated emergency disconnect valve. Attached Figure Description

[0017] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a rear-view three-dimensional structural diagram of the present invention;

[0019] Figure 3 This is a frontal cross-sectional view of the present invention.

[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. Left disconnect valve; 2. Screw; 3. Clamp; 4. Sliding ring; 5. First elastic element; 6. Fixed ring; 7. Right disconnect valve; 8. Support frame; 9. Pull rope; 10. Fixed cylinder; 11. Second elastic element; 12. Sealing plug; 13. Conical block; 14. Third elastic element; 15. Extrusion groove; 16. PTFE sealing gasket; 17. Connecting column. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example

[0024] Please see Figures 1 to 3 This utility model provides a cable-operated emergency disconnect valve, including a left disconnect valve 1 and a right disconnect valve 7. The adjacent flanges of the left disconnect valve 1 and the right disconnect valve 7 abut against each other. The outer sides of the adjacent flanges of the left disconnect valve 1 and the right disconnect valve 7 are abutted against by a retaining piece 3. The lower inner side of the left end of the retaining piece 3 is threaded with a screw 2, and the right end of the screw 2 abuts against the left disconnect valve 1.

[0025] The left disconnect valve 1 and the right disconnect valve 7 have extrusion grooves 15 inside their adjacent flanges. A third elastic element 14 is provided on the side of the extrusion groove 15 away from the clamping piece 3. A conical block 13 is fixedly connected to the other end of the third elastic element 14. The inclined surface of the conical block 13 near the clamping piece 3 abuts against the left disconnect valve 1 and the right disconnect valve 7.

[0026] Specifically, the third elastic element 14 is made of 60Si2Mn high-strength spring steel, the clamp 3 is a symmetrical claw made of No. 45 steel with galvanized anti-rust coating, and the whole is in the shape of an "Ω" semi-enclosing the outer periphery of the flange. The inner side is provided with serrated anti-slip texture. The conical block 13 is made of 40Cr with a slope angle of 30°-45°. The extrusion groove 15 is opened on the inner side of the flange of the left disconnect valve 1 and the right disconnect valve 7, and matches the conical block 13 to ensure that the conical block 13 can slide smoothly.

[0027] Please see Figure 3 A support frame 8 is fixedly connected to the inner left side of the left disconnect valve 1, and a support frame 8 is fixedly connected to the inner right side of the right disconnect valve 7.

[0028] Specifically, the support frame 8 has a cross-shaped reinforced structure, which is adapted to the internal space of the circular valve body. It is made of 304 stainless steel, which is corrosion resistant.

[0029] Please see Figure 3Two support frames 8 are fixedly connected to opposing sides with a fixed cylinder 10. The inner wall of the fixed cylinder 10 is fixedly connected to the side of the support frame 8 with a second elastic element 11. The other end of the second elastic element 11 is fixedly connected to a sealing plug 12.

[0030] Specifically, the second elastic element 11 is made of 304 stainless steel, which is corrosion resistant and suitable for fluid media.

[0031] Please see Figures 3 to 4 The outer side of the fixed cylinder 10 is slidably connected to the inner side of the sealing plug 12. A polytetrafluoroethylene sealing gasket 16 is provided on the outer periphery of the opposing sides of the sealing plug 12. A connecting post 17 is fixedly connected to the center of the opposing sides of the two sealing plugs 12.

[0032] Specifically, the connecting column 17 is made of 45 steel or polyoxymethylene, with a ring-shaped weak section in the middle, and a breaking tensile force of 15-20kN, matching the pulling force of a conventional tank truck misdirection.

[0033] Please see Figures 1 to 3 A fixing ring 6 is fixedly connected to the right side of the outer side of the right disconnect valve 7. A first elastic element 5 is fixedly connected to the left side of the fixing ring 6. A sliding ring 4 is fixedly connected to the other end of the first elastic element 5.

[0034] Specifically, the first elastic element 5 is made of 60Si2Mn high-strength spring steel.

[0035] Please see Figures 1 to 3 The inner side of the sliding ring 4 is slidably connected to the right disconnect valve 7. The left inclined surface of the sliding ring 4 abuts against the right inclined surface of the clamp 3. The upper and lower parts of the right corner of the outer periphery of the sliding ring 4 are fixedly connected with a pull rope 9.

[0036] Specifically, the pull rope 9 is made of 304 stainless steel wire rope or aramid fiber rope.

[0037] During use, the threaded connection between screw 2 and clamp 3 is utilized. Because the right end of screw 2 abuts against the left disconnect valve 1, rotating screw 2 adjusts the pressure of clamp 3 on the flange of right disconnect valve 7, making the disconnect valve evenly stressed. When the disconnect valve is stressed and the connecting column 17 is disconnected, the second elastic element 11 extends, pushing the two sealing plugs 12 to move towards each other, blocking the left disconnect valve 1 and right disconnect valve 7. At the same time, it pulls the pull rope 9, which in turn pulls the sliding ring 4, canceling the abutment against clamp 3, and compressing the first elastic element 5. Utilizing the inclined surface of the flange of right disconnect valve 7, clamp 3 will no longer squeeze the right disconnect valve 7, allowing clamp 3 to easily fall off the left disconnect valve 1 and right disconnect valve 7. At the same time, the third elastic element 14 extends, pushing the conical block 13 to move outward, causing the inclined surface of the conical block 13 to squeeze the left disconnect valve 1 and right disconnect valve 7, prompting the left disconnect valve 1 and right disconnect valve 7, which were stuck together by ice, to quickly separate.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cable-operated emergency break valve, comprising a left break valve (1) and a right break valve (7), characterized in that: The adjacent sides of the adjacent flanges of the left disconnect valve (1) and the right disconnect valve (7) abut against each other. The outer sides of the adjacent flanges of the left disconnect valve (1) and the right disconnect valve (7) are abutted by a clamp (3). The lower inner side of the left end of the clamp (3) is threaded with a screw (2). The right end of the screw (2) abuts against the left disconnect valve (1). The left break valve (1) and the right break valve (7) have extrusion grooves (15) inside their adjacent flanges. A third elastic element (14) is provided on the side of the extrusion groove (15) away from the clamp (3). A conical block (13) is fixedly connected to the other end of the third elastic element (14). The inclined surface of the conical block (13) near the clamp (3) abuts against the left break valve (1) and the right break valve (7).

2. The cable-operated emergency disconnect valve according to claim 1, characterized in that: The left inner side of the left break valve (1) is fixedly connected to a support frame (8), and the right inner side of the right break valve (7) is fixedly connected to a support frame (8).

3. A cable-operated emergency disconnect valve according to claim 2, characterized in that: A fixing cylinder (10) is fixedly connected to the opposing sides of the two support frames (8). A second elastic element (11) is fixedly connected to the inner wall of the fixing cylinder (10) near the side of the support frame (8). A sealing plug (12) is fixedly connected to the other end of the second elastic element (11).

4. A cable-operated emergency disconnect valve according to claim 3, characterized in that: The outer side of the fixed cylinder (10) is slidably connected to the inner side of the sealing plug (12). A polytetrafluoroethylene sealing gasket (16) is provided on the outer periphery of the opposite side of the sealing plug (12). A connecting column (17) is fixedly connected to the center of the opposite side of the two sealing plugs (12).

5. A cable-operated emergency disconnect valve according to claim 1, characterized in that: A fixing ring (6) is fixedly connected to the right side of the outer side of the right break valve (7), and a first elastic element (5) is fixedly connected to the left side of the fixing ring (6). A sliding ring (4) is fixedly connected to the other end of the first elastic element (5).

6. A cable-operated emergency disconnect valve according to claim 5, characterized in that: The inner side of the sliding ring (4) is slidably connected to the right pull-off valve (7), the left inclined surface of the sliding ring (4) abuts against the right inclined surface of the clamp (3), and the upper and lower parts of the outer right corner of the sliding ring (4) are fixedly connected with a pull rope (9).

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