Quick-replaceable snap bolt replacement device for snap valve

Abstract

The utility model relates to the technical field of snap bolt replacement, in particular to a snap bolt replacement device of a snap valve capable of being rapidly replaced, which comprises a bottom surface blind plate, the top of the bottom surface blind plate is fixedly connected with a supporting steel pipe, the top of the supporting steel pipe is fixedly connected with a cross beam plate, and the inside of the cross beam plate is in threaded connection with a lifting screw rod. The top of the lifting screw rod is fixedly connected with an operation face blind plate, the bottom of the lifting screw rod is fixedly connected with a movable face blind plate, a sliding groove is formed in the bottom face blind plate, a sliding rod is slidably connected into the sliding groove, the outer side of the sliding rod is fixedly connected with a reset spring, and the top of the sliding rod is fixedly connected with a clamping cover. According to the utility model, the structure is simple, the use is convenient, and the snap bolt can be quickly replaced, so that the used time is reduced, and the snap valve at the bottom can be kept stable.

Description

Technical Field

[0001] The utility model relates to a breaking bolt replacement device of a breaking valve which can be replaced quickly, and belongs to the technical field of breaking bolt replacement. Background Art

[0002] The Eastern LNG Emergency Gas Source Station has 4 unloading platforms and 2 loading platforms, equipped with a breakaway valve for LNG loading and unloading. The interior of the breakaway valve is composed of two opposing stop valves, which are supported by springs to maintain the internal connection state. When an abnormal situation occurs, the breakaway valve is pulled apart from the weak point in the middle groove by the external pulling force, and the entire breakaway valve is separated into two parts, the two stop valves are acted upon by the spring and the gas (liquid) pressure of the pipeline, and quickly move and close the sealing surfaces of the left and right parts of the breakaway valve to avoid gas (liquid) leakage to ensure the safety of the LNG loading and unloading system.

[0003] There are still some problems when replacing the breakaway bolts of the existing breakaway valve. The breakaway valve can be reused after the breakaway bolts are replaced, but replacing the breakaway bolts requires overcoming the spring force to keep the two opposing stop valves open and to align and tighten the sealing surfaces. It is difficult to perform the replacement operation solely by manpower. In addition, the breakaway bolt is a different-diameter bolt that is thick in the middle and thin at both ends and cannot pass through the two sealing surfaces from one side. At the same time, when replacing, the half of the breakaway valve at the bottom is easily misaligned due to the large extrusion pressure, thereby affecting the normal replacement of the breakaway bolt. Utility Model Content

[0004] The purpose of the utility model is to provide a break bolt replacement device for a break valve that can be quickly replaced. The utility model has a simple structure and is easy to use. It can quickly replace the break bolts, thereby reducing the time used, and can keep the break valve at the bottom stable, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A device for replacing a breakaway bolt of a quickly replaceable breakaway valve comprises a bottom blind plate, the top of the bottom blind plate is fixedly connected to a supporting steel pipe, the top of the supporting steel pipe is fixedly connected to a crossbeam plate, the internal thread of the crossbeam plate is connected to a lifting screw, the top of the lifting screw is fixedly connected to an operating surface blind plate, and the bottom of the lifting screw is fixedly connected to a movable surface blind plate.

[0007] Furthermore, a sliding groove is provided inside the bottom blind plate, a sliding rod is slidably connected inside the sliding groove, a return spring is fixedly connected to the outside of the sliding rod, a clamping cover is fixedly connected to the top of the sliding rod, a movable hole is provided inside the clamping cover, a connecting cover is fixedly connected to the outside of the supporting steel pipe, a threaded tube is fixedly connected to the outside of the connecting cover, a moving screw is threadedly connected inside the threaded tube, a rotating cover is fixedly connected to the outside of the moving screw, and a pushing rod is fixedly connected to the outside of the moving screw.

[0008] Furthermore, the supporting steel pipes are symmetrically distributed on the top of the bottom blind plate, and the cross beam plate is fixedly connected above the bottom blind plate through the supporting steel pipes.

[0009] Furthermore, the lifting screw is rotatably connected to the inside of the crossbeam plate through an operating surface blind plate, and the movable surface blind plate is located between the crossbeam plate and the bottom surface blind plate.

[0010] Furthermore, the lifting screw is rotatably connected to the inside of the crossbeam plate through an operating surface blind plate, and the movable surface blind plate is located between the crossbeam plate and the bottom surface blind plate.

[0011] Furthermore, the clamping cover is movably connected to the top of the bottom blind plate through a sliding rod, and the clamping cover is symmetrically distributed on the top of the bottom blind plate.

[0012] Furthermore, the push rod is movably connected to the outside of the connection cover through a movable screw, and one end of the push rod away from the movable screw is movably connected to the inside of the movable hole.

[0013] The beneficial effects of the utility model are:

[0014] (I) The utility model sets a bottom blind plate. When replacing the break bolt, first place half of the break valve on the bottom blind plate, put a new break bolt on the edge of the sealing surface, and then put on the other half of the break valve. Rotate the operating surface blind plate to drive the lifting screw to move up and down, so that the movable surface blind plate overcomes the spring force, aligns the two sealing surfaces in the middle of the break valve, clamps the break valve, and then tightens the break bolt to complete the replacement. The use of this device can reduce the replacement time of the break bolt from one hour to less than 0.5 hours, ensuring the efficiency of LNG loading and unloading. At the same time, it reduces the damage caused by unilateral force and uneven tension of the break bolt, saving the purchase expenditure of the break bolt.

[0015] (ii) The utility model is provided with a bottom blind plate. Before replacement, half of the breakaway valve is first placed on the bottom blind plate. The rotating cover is rotated to drive the movable screw to rotate and move inside the threaded tube. The movement of the movable screw drives the push rod to move. Since one end of the push rod away from the movable screw is movably connected to the movable hole inside the clamping cover, when the push rod moves, it can drive the two clamping covers to move under the action of the slide rod and the return spring, so that the clamping cover clamps the breakaway valve on the top of the bottom blind plate to prevent it from being displaced under the huge extrusion force. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0017] Figure 1 It is a structural schematic diagram of a device for replacing a breakaway bolt of a breakaway valve that can be replaced quickly according to the utility model;

[0018] Figure 2 It is a structural schematic diagram of the top of the movable surface blind plate of a breakaway bolt replacement device of a breakaway valve that can be replaced quickly in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the top of the bottom blind plate of a breakaway bolt replacement device of a breakaway valve that can be replaced quickly in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the outer side of the clamping cover of a breaking bolt replacement device of a breaking valve that can be quickly replaced in the utility model;

[0021] Numbers in the figure: 1. Bottom blind plate; 2. Support steel pipe; 3. Crossbeam plate; 4. Lifting screw; 5. Operating surface blind plate; 6. Movable surface blind plate; 7. Slide groove; 8. Slide rod; 9. Reset spring; 10. Clamping cover; 11. Movable hole; 12. Connecting cover; 13. Threaded tube; 14. Moving screw; 15. Rotating cover; 16. Push rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1 Please refer to Figure 1-Figure 4, the utility model provides a technical solution:

[0024] A device for replacing a breakaway bolt of a quickly replaceable breakaway valve comprises a bottom blind plate 1, the top of the bottom blind plate 1 is fixedly connected to a supporting steel pipe 2, the top of the supporting steel pipe 2 is fixedly connected to a cross beam plate 3, the internal thread of the cross beam plate 3 is connected to a lifting screw 4, the top of the lifting screw 4 is fixedly connected to an operating surface blind plate 5, and the bottom of the lifting screw 4 is fixedly connected to a movable surface blind plate 6.

[0025] Specifically, Figure 1 As shown, the supporting steel pipes 2 are symmetrically distributed on the top of the bottom blind plate 1, the cross beam plate 3 is fixedly connected to the top of the bottom blind plate 1 through the supporting steel pipes 2, the lifting screw 4 is rotatably connected to the inside of the cross beam plate 3 through the operating surface blind plate 5, and the movable surface blind plate 6 is located between the cross beam plate 3 and the bottom blind plate 1.

[0026] In this embodiment: by setting the bottom blind plate 1, when replacing the break bolt, first place half of the break valve on the bottom blind plate 1, put a new break bolt on the edge of the sealing surface, and then put on the other half of the break valve, rotate the operating surface blind plate 5, drive the lifting screw 4 to move up and down inside the crossbeam plate 3, so that the movable surface blind plate 6 overcomes the spring force, aligns the two sealing surfaces in the middle of the break valve, clamps the break valve, and then tightens the break bolt to complete the replacement. The use of this device can reduce the replacement time of the break bolt from one hour to less than 0.5 hours, ensuring the efficiency of LNG loading and unloading. At the same time, it reduces the damage caused by unilateral force and uneven tension of the break bolt, saving the purchase expenditure of the break bolt.

[0027] Example 2 Please refer to Figure 1 , Figure 2 and Figure 4 The difference between this embodiment and embodiment 1 is that: a slide groove 7 is opened inside the bottom blind plate 1, a slide rod 8 is slidably connected inside the slide groove 7, a return spring 9 is fixedly connected to the outside of the slide rod 8, a clamping cover 10 is fixedly connected to the top of the slide rod 8, a movable hole 11 is opened inside the clamping cover 10, a connecting cover 12 is fixedly connected to the outside of the supporting steel pipe 2, a threaded tube 13 is fixedly connected to the outside of the connecting cover 12, a moving screw 14 is threadedly connected inside the threaded tube 13, a rotating cover 15 is fixedly connected to the outside of the moving screw 14, and a pushing rod 16 is fixedly connected to the outside of the moving screw 14.

[0028] Specifically, Figure 1-4As shown, the slide groove 7 is symmetrically distributed inside the bottom blind plate 1, the end of the return spring 9 away from the slide rod 8 is fixedly connected to the inner wall of the slide groove 7, the clamping cover 10 is movably connected to the top of the bottom blind plate 1 through the slide rod 8, and the clamping cover 10 is symmetrically distributed on the top of the bottom blind plate 1, the push rod 16 is movably connected to the outside of the connecting cover 12 through the moving screw 14, and the end of the push rod 16 away from the moving screw 14 is movably connected to the inside of the movable hole 11.

[0029] In this embodiment: a bottom blind plate 1 is provided. Before replacement, first place half of the break valve on the bottom blind plate 1, and by rotating the rotating cover 15, the rotating cover 15 drives the moving screw 14 to rotate and move inside the threaded tube 13, and the movement of the moving screw 14 drives the pushing rod 16 to move. Since the end of the pushing rod 16 away from the moving screw 14 is movably connected to the movable hole 11 inside the clamping cover 10, when the pushing rod 16 moves, it can drive the two clamping covers 10 to move under the action of the sliding rod 8 and the return spring 9, so that the clamping cover 10 clamps the break valve on the top of the bottom blind plate 1 to prevent the break valve from being displaced under the huge extrusion force. After the replacement is completed, the rotating cover 15 is reversed to make the moving screw 14 drive the pushing rod 16 to return to its original position, so that the clamping cover 10 no longer positions the break valve under the action of the return spring 9 outside the sliding rod 8, thereby facilitating the removal of the break valve.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for replacing a breakaway bolt of a breakaway valve that can be replaced quickly, comprising a bottom blind plate (1), characterized in that: The top of the bottom blind plate (1) is fixedly connected to a supporting steel pipe (2), the top of the supporting steel pipe (2) is fixedly connected to a cross beam plate (3), the internal thread of the cross beam plate (3) is connected to a lifting screw rod (4), the top of the lifting screw rod (4) is fixedly connected to an operating surface blind plate (5), the bottom of the lifting screw rod (4) is fixedly connected to a movable surface blind plate (6), a sliding groove (7) is provided inside the bottom blind plate (1), a sliding rod (8) is slidably connected inside the sliding groove (7), and the outer side of the sliding rod (8) is fixedly connected to A reset spring (9), the top of the sliding rod (8) is fixedly connected with a clamping cover (10), a movable hole (11) is opened inside the clamping cover (10), the outer side of the supporting steel pipe (2) is fixedly connected with a connecting cover (12), the outer side of the connecting cover (12) is fixedly connected with a threaded tube (13), the inner part of the threaded tube (13) is threadedly connected with a moving screw (14), the outer side of the moving screw (14) is fixedly connected with a rotating cover (15), and the outer side of the moving screw (14) is fixedly connected with a pushing rod (16).

2. A device for replacing a breakaway bolt of a quickly replaceable breakaway valve according to claim 1, characterized in that: The supporting steel pipes (2) are symmetrically distributed on the top of the bottom blind plate (1), and the cross beam plate (3) is fixedly connected to the top of the bottom blind plate (1) through the supporting steel pipes (2).

3. The device for replacing a breakaway bolt of a quickly replaceable breakaway valve according to claim 1, characterized in that: The lifting screw (4) is rotatably connected to the inside of the crossbeam plate (3) through an operating surface blind plate (5), and the movable surface blind plate (6) is located between the crossbeam plate (3) and the bottom surface blind plate (1).

4. A device for replacing a breakaway bolt of a quickly replaceable breakaway valve according to claim 2, characterized in that: The slide grooves (7) are symmetrically distributed inside the bottom blind plate (1), and one end of the return spring (9) away from the slide rod (8) is fixedly connected to the inner wall of the slide groove (7).

5. The device for replacing a breakaway bolt of a quickly replaceable breakaway valve according to claim 2, characterized in that: The clamping cover (10) is movably connected to the top of the bottom blind plate (1) via a sliding rod (8), and the clamping cover (10) is symmetrically distributed on the top of the bottom blind plate (1).

6. A device for replacing a breakaway bolt of a quickly replaceable breakaway valve according to claim 2, characterized in that: The push rod (16) is movably connected to the outside of the connection cover (12) through the movable screw rod (14), and one end of the push rod (16) away from the movable screw rod (14) is movably connected to the inside of the movable hole (11).

Images