High-pressure gas emergency stop valve

Abstract

The utility model relates to the technical field of high-pressure gas emergency stop valves, and discloses a high-pressure gas emergency stop valve which comprises an upper valve seat and a lower valve seat, the lower valve seat is arranged at the bottom end of the upper valve seat, a first fixing seat is fixedly connected to the bottom end of the exterior of the upper valve seat, and a second fixing seat is fixedly connected to the top end of the exterior of the lower valve seat. And an adjusting shaft is longitudinally arranged in the top end of the upper valve seat in a penetrating manner. According to the high-pressure gas emergency stop valve, parts such as the upper valve seat are arranged, a fixed block at the bottom can be driven to move downwards by screwing an adjusting shaft, and at the moment, a blocking seat at the bottom of the fixed block can be embedded in a notch, so that gas circulation is rapidly stopped, and a limiting block can be screwed through the rotatable relation between a movable block and a movable groove; therefore, the handle can be pressed and limited through the limiting block, the handle is not prone to bounce upwards, safety is improved, and the problem that the handle is inconvenient to limit and fix due to the fact that the top is not provided with a safe limiting structure is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high pressure gas emergency stop valve technical field, concretely is a kind of high pressure gas emergency stop valve. BACKGROUND

[0002] High pressure gas emergency stop valve is a kind of valve that can be quickly closed or opened when encountering emergency, mainly used to prevent accidents, usually such valve is installed in liquefied gas equipment, conveying pipeline and other key parts.

[0003] According to the design of existing high pressure gas emergency stop valve, after quickly screwing valve, there is no safety limiting structure at top, it is inconvenient to limit and fix, internal blocking seat and slot gap occur between notch, prone to leakage, so its structure needs to be improved.

[0004] Now, a new type of high pressure gas emergency stop valve is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of high pressure gas emergency stop valve to solve the problem of not being convenient to limit and fix in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of high pressure gas emergency stop valve, including upper valve seat and lower valve seat, the bottom end of the upper valve seat is provided with lower valve seat, the bottom end of the outer portion of the upper valve seat is fixedly connected with first fixed seat, the top end of the outer portion of the lower valve seat is fixedly connected with second fixed seat, the inside of the top end of the upper valve seat is vertically penetrated and is provided with adjusting shaft, the top end of the adjusting shaft is fixedly connected with handle, the inside of the both sides of the top end of the upper valve seat is provided with movable slot, the inside of the movable slot is movably connected with movable block, the top end of the movable block is fixedly connected with limit block, the inside of the lower valve seat is provided with fixed block, the both sides of the top end of the fixed block are fixedly connected with guide rod, the bottom end of the fixed block is fixedly connected with blocking seat.

[0007] Preferably, the bottom end of the adjusting shaft is rotatably embedded in the inside of the top end of the fixed block, and the outside of the adjusting shaft is provided with external thread.

[0008] Preferably, the both sides of the inside of the bottom end of the upper valve seat are provided with guide slot, and the top end of the guide rod is movably embedded in the inside of the guide slot.

[0009] Preferably, the inside of the lower valve seat is provided with notch, the inner wall of the notch is fixedly connected with sealing gasket, the position of the blocking seat and the notch is consistent, and the blocking seat is semicircular.

[0010] Preferably, the outer part of the first and second fixing bases is clamped with a concave block, the front end and the rear end of the concave block are fixedly connected with connecting seats respectively, and a double-headed screw rod is arranged transversely through the connecting seats.

[0011] Preferably, the right side of the lower valve seat is provided with an air outlet, the left side of the lower valve seat is provided with an air inlet, the outer part of the air outlet and the air inlet is fixedly connected with a mounting seat, and the inner part of the mounting seat is provided with an assembly hole.

[0012] Preferably, the limiting blocks are arranged in two groups, and the limiting blocks are symmetrically distributed on the two sides of the top end of the upper valve seat.

[0013] Preferably, the outer part of the double-headed screw rod is movably connected with lock nuts on the two sides, and the concave blocks are detachable through the lock nuts and the double-headed screw rod.

[0014] Compared with the prior art, the high-pressure gas emergency stop valve has the advantages that the high-pressure gas emergency stop valve can avoid the blocking seat from being popped open, improve safety, improve the guidance and notch sealing performance of the blocking seat when the blocking seat moves, and is convenient to quickly disassemble and assemble.

[0015] (1) The upper valve seat, the movable groove, the movable block, the limiting block, the handle and the adjusting shaft are arranged, the adjusting shaft can drive the fixed block at the bottom to move downwards, the blocking seat at the bottom of the fixed block is embedded in the notch at this time, the flow of gas is quickly cut off, the movable block and the movable groove can rotate relative to each other, the limiting block can be screwed, and the handle can be pressed and limited by the limiting block, so that the handle is not easy to pop open upwards, and safety is improved.

[0016] (2) The notch, the sealing gasket, the fixed block, the blocking seat, the guide groove and the guide rod are arranged, when the adjusting shaft rotates, the two guide rods at the top of the fixed block are guided and lifted in the guide groove, so that the fixed block can keep vertical during the downward movement, the blocking seat can be more guided and accurately embedded in the notch, and the sealing gasket can keep the sealing performance of the closed notch, so that the gas is not easy to leak.

[0017] (3) The first fixing base, the second fixing base, the lock nut, the connecting seat and the concave block double-headed screw rod are arranged, when disassembly and maintenance are needed, the lock nut can be screwed and disassembled, the double-headed screw rod can be taken out of the connecting seat, and the two groups of concave blocks can be separated from the first fixing base and the second fixing base, so that the high-pressure gas emergency stop valve can be conveniently and quickly disassembled and assembled. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view of the sectional structure of the utility model;

[0019] Figure 2 It is a top view of the connecting mode of the limiting block and the upper valve seat of the utility model.

[0020] Figure 3 It is the recessed block and double head screw rod connection mode of the utility model's inverted structure schematic view;

[0021] Figure 4 It is the barrier seat and notch connection mode of the utility model's front view structure schematic view.

[0022] In the figure: 1, upper valve seat; 2, guide groove; 3, guide rod; 4, first fixed seat; 5, second fixed seat; 6, lower valve seat; 7, gas outlet; 8, mounting seat; 9, notch; 10, sealing gasket; 11, air inlet; 12, fixed block; 13, barrier seat; 14, locking nut; 15, connecting seat; 16, recessed block; 17, movable groove; 18, movable block; 19, limit block; 20, handle; 21, adjusting shaft; 22, assembly hole; 23, double head screw rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0024] Embodiment 1: please refer to Figures 1-4 A high-pressure gas emergency stop valve, including upper valve seat 1 and lower valve seat 6, the bottom end of upper valve seat 1 is provided with lower valve seat 6, the bottom end outside first fixed seat 4 is connected with the fixed connection of upper valve seat 1, the top end outside second fixed seat 5 is connected with the fixed connection of lower valve seat 6, the inside of upper valve seat 1 top is longitudinally through and is provided with adjusting shaft 21, the top of adjusting shaft 21 is fixedly connected with handle 20, the inside of upper valve seat 1 top both sides is provided with movable groove 17, movable groove 17 is movably connected with movable block 18 in the inside, the top of movable block 18 is fixedly connected with limit block 19, the inside of lower valve seat 6 is provided with fixed block 12, the both sides of fixed block 12 top end are fixedly connected with guide rod 3, the bottom end of fixed block 12 is fixedly connected with barrier seat 13;

[0025] The bottom end of adjusting shaft 21 is rotatable in the inside of fixed block 12 top end, the outside of adjusting shaft 21 is provided with external thread;

[0026] Limit block 19 is provided with two groups, and limit block 19 is symmetrically distributed on the both sides of the top of upper valve seat 1;

[0027] Specifically, as Figure 1 And Figure 2As shown, the screw adjustment shaft 21 can drive the bottom fixed block 12 to move downward, at this time the blocking seat 13 at the bottom of the fixed block 12 is embedded in the notch 9, so that it quickly cuts off the circulation of gas, and by the rotatable relationship between the movable block 18 and the movable slot 17, the limiting block 19 can be screwed, so that the handle 20 can be pressed and limited, so that it is not easy to pop up, thereby improving the safety.

[0028] In the embodiment 2, the two sides of the bottom end of the upper valve seat 1 are provided with guide grooves 2, and the top end of the guide rod 3 is embedded in the guide grooves 2 and can move;

[0029] The notch 9 is provided with a sealing gasket 10 fixedly connected to the inner wall of the notch 9, and the blocking seat 13 is in line with the position of the notch 9, and the blocking seat 13 is semicircular.

[0030] Specifically, as shown in Figure 1 and Figure 4 When the adjustment shaft 21 rotates, the two guide rods 3 at the top of the fixed block 12 will guide and lift in the guide grooves 2, thereby ensuring that the fixed block 12 remains vertical during the downward movement, and the blocking seat 13 can be more accurately embedded in the notch 9, and the sealing gasket 10 can maintain the sealing performance after the notch 9 is closed, so that the gas is not easy to leak.

[0031] In the embodiment 3, the first fixed seat 4 and the second fixed seat 5 are externally connected with concave blocks 16, the front end and the rear end of the concave blocks 16 are respectively fixedly connected with connecting seats 15, and double-headed screws 23 are transversely arranged in the connecting seats 15.

[0032] The right side of the lower valve seat 6 is provided with a gas outlet 7, and the left side of the lower valve seat 6 is provided with a gas inlet 11, and the outer sides of the gas outlet 7 and the gas inlet 11 are fixedly connected with mounting seats 8, and the mounting seats 8 are provided with assembly holes 22.

[0033] The outer sides of the double-headed screws 23 are movably connected with locking nuts 14, and the concave blocks 16 are detachable through the locking nuts 14 and the double-headed screws 23.

[0034] Specifically, as shown in Figure 1 and Figure 3 When disassembly and maintenance are needed, the locking nuts 14 can be unscrewed and detached, the double-headed screws 23 can be taken out of the connecting seats 15, and the two groups of concave blocks 16 can be separated from the first fixed seat 4 and the second fixed seat 5, so that the assembly and disassembly can be conveniently and quickly performed.

[0035] Working principle: the utility model discloses in use, first, the screwing adjusting shaft 21 can drive the fixed block 12 of bottom to move down, the barrier seat 13 of fixed block 12 bottom will be embedded in the notching 9 at this moment, make its quick cut-off gas circulation, utilize the rotatable relation between movable block 18 and movable slot 17, can screw the limiting block 19, thereby through the pressing and limiting of limiting block 19 to handle 20, make it not easy to pop open upward, improve security, then, when adjusting shaft 21 rotates, the two guide rods 3 of fixed block 12 top will guide lifting in guide slot 2, thereby guarantee that fixed block 12 keeps perpendicular in the process of going down, barrier seat 13 can more guide, accurate embedding in the notching 9, through the sealing gasket 10 keeps the sealing property after the notching 9 closes, make its gas not easy to leak, finally, when needing to disassemble and overhaul, can screw locking nut 14 and disassemble, take out double-end screw rod 23 from connecting seat 15, then two groups of concave blocks 16 are separated from first fixed seat 4 and second fixed seat 5, can be separated from first fixed seat 4 and second fixed seat 5, thereby make convenient and fast dismounting.

[0036] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A high-pressure gas emergency shut-off valve comprising an upper valve seat (1) and a lower valve seat (6), characterized in that: The bottom end of the upper valve seat (1) is provided with a lower valve seat (6), the bottom end outside the upper valve seat (1) is fixedly connected with a first fixed seat (4), the top end outside the lower valve seat (6) is fixedly connected with a second fixed seat (5), the inside of the top end of the upper valve seat (1) is longitudinally provided with an adjusting shaft (21), the top end of the adjusting shaft (21) is fixedly connected with a handle (20), the inside of both sides of the top end of the upper valve seat (1) is provided with a movable groove (17), the inside of the movable groove (17) is movably connected with a movable block (18), the top end of the movable block (18) is fixedly connected with a limiting block (19), the inside of the lower valve seat (6) is provided with a fixed block (12), both sides of the top end of the fixed block (12) are fixedly connected with a guide rod (3), and the bottom end of the fixed block (12) is fixedly connected with a blocking seat (13).

2. A high pressure gas emergency shut-off valve according to claim 1, characterized in that: The bottom end of the adjusting shaft (21) is rotatably embedded in the inside of the top end of the fixed block (12), and the outside of the adjusting shaft (21) is provided with external threads.

3. A high pressure gas emergency shut-off valve according to claim 1, characterized in that: Both sides of the inside of the bottom end of the upper valve seat (1) are provided with guide grooves (2), and the top end of the guide rod (3) is movably embedded in the inside of the guide groove (2).

4. A high pressure gas emergency shut-off valve according to claim 1, characterized in that: The inside of the lower valve seat (6) is provided with a notch (9), the inner wall of the notch (9) is fixedly connected with a sealing gasket (10), the blocking seat (13) is matched with the position of the notch (9), and the blocking seat (13) is semicircular.

5. A high pressure gas emergency shut-off valve according to claim 1, characterized in that: The outside of the first fixed seat (4) and the second fixed seat (5) is clamped with a concave block (16), the front end and the rear end of the concave block (16) are fixedly connected with a connecting seat (15) respectively, and a double-headed screw rod (23) is transversely provided between the inside of the connecting seat (15).

6. A high pressure gas emergency shut-off valve according to claim 1, characterized in that: The right side of the lower valve seat (6) is provided with an air outlet (7), the left side of the lower valve seat (6) is provided with an air inlet (11), the outside of the air outlet (7) and the air inlet (11) is fixedly connected with a mounting seat (8), and the inside of the mounting seat (8) is provided with an assembly hole (22).

7. A high pressure gas emergency shut-off valve according to claim 6, characterized in that: The limiting block (19) is provided with two groups, and the limiting blocks (19) are symmetrically distributed on both sides of the top end of the upper valve seat (1).

8. A high pressure gas emergency shut-off valve according to claim 5, characterized in that: The outside of the double-headed screw rod (23) is movably connected with a locking nut (14) on both sides, and the concave blocks (16) are detachable through the locking nut (14) and the double-headed screw rod (23).

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