Double-clack type linkage locking device for acetylene material port valve

Abstract

The utility model discloses a double-clack type linkage locking device of an acetylene feed port valve, and particularly relates to the technical field of acetylene feed port valves, which comprises a pipeline, the middle of the pipeline is rotatably connected with two double-clack sealing plates through a fixing rod, and the top of the pipeline is provided with an air cylinder for controlling the double-clack sealing plates to be opened and closed. A sealing baffle ring is fixedly connected to the side, located on the double-valve sealing plate, of the middle of the pipeline, a first connecting ring is fixedly connected to the side, close to the sealing baffle ring, of the double-valve sealing plate, and a rotating rod is inserted into the middle of the pipeline. According to the utility model, firstly, the spiral spring is arranged to enable the rotating rod to generate a force for winding the connecting rope, and the positioning top block is used for limiting the gear, so that a force for preventing the connecting rope from loosening can be realized, and therefore, the fitting strength of the double-valve sealing plate and the sealing baffle ring is improved, the sealing strength is improved, and a power source for controlling the starting of the air cylinder is not lost; and the sealing of the double-valve sealing plate is loosened, so that gas leakage is caused, and the sealing strength is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of acetylene discharge port valve, more specifically, the utility model relates to acetylene discharge port valve double -paddle type linkage locking device. BACKGROUND

[0002] In the chemical production process, acetylene as an important industrial raw material, its safety in the storage and transportation link is very important. Acetylene has the characteristics of flammable and explosive, once leakage, mixed with air to form explosive mixture, meet the high heat energy can cause combustion and explosion, seriously threaten the life safety of production personnel and the property safety of factory;

[0003] At present, acetylene discharge port adopts pneumatic valve to carry out flow control and on-off operation, however, in the actual production process, when the instrument gas supply is interrupted, the control power source of pneumatic valve is lost, and the valve is prone to looseness, which leads to acetylene gas leakage, resulting in not only raw material waste and increased production cost, but also serious consequences such as fire, explosion, environmental pollution and huge economic losses and social negative influence to enterprises, therefore, an acetylene discharge port valve double-paddle type linkage locking device is proposed. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides acetylene discharge port valve double-paddle type linkage locking device to solve the problems in the above background art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: acetylene discharge port valve double-paddle type linkage locking device, including pipeline, the middle part of the pipeline is rotatably connected with two double-paddle sealing plates through the fixed rod, the top of the pipeline is provided with the pneumatic cylinder that controls the opening and closing of the double-paddle sealing plate, the middle part of the pipeline is fixedly connected with the sealing baffle ring on one side of the double-paddle sealing plate, the sealing baffle ring can improve the plugging strength of the pipeline when the double-paddle sealing plate is closed, the side close to the sealing baffle ring of the double-paddle sealing plate is fixedly connected with the first connecting ring, the middle part of the pipeline is inserted with the rotating rod;

[0006] One side of the pipeline is fixedly connected with the locking box, the both ends of the rotating rod are woundly connected with the connecting rope at the positions corresponding to the first connecting ring, one end of the connecting rope is fixedly connected with the second connecting ring, the middle part of the rotating rod is fixedly connected with the first limiting plate on the both sides of the connecting rope in a symmetrical manner, rotating the rotating rod can pull the connecting rope, thereby pulling one end of the double-paddle sealing plate through the cooperation of the second connecting ring and the first connecting ring, improving the adhesion strength of the double-paddle sealing plate and the sealing baffle ring, thereby improving the sealing strength, avoiding the loosening of the control of the double-paddle sealing plate after the instrument gas of the pneumatic cylinder stops, thereby avoiding the phenomenon of gas leakage, realizing the linkage locking and fixing of the double-paddle sealing plate, and improving the sealing strength.

[0007] One end of the rotating rod penetrates through the locking box and is fixedly connected with a rotating disc, a gear and a volute spring are fixedly sleeved on the end of the rotating rod close to the locking box, a locking mechanism is arranged in the middle of the locking box, the rotating disc is convenient for rotating the rotating rod, the volute spring can generate a force for winding the connecting rope when the rotation of the rotating rod is not limited, and the locking mechanism can fix the position of the gear, so that the pulling position of the connecting rope is fixed, and the stability of the double-petal sealing plate is improved.

[0008] Preferably, the second connecting ring is connected with the first connecting ring, the wall body of the double-petal sealing plate is tightly attached to the wall body of the sealing baffle ring, a sealing ring is arranged between the rotating rod and the pipeline, and the double-petal sealing plate can be pulled through the cooperation of the second connecting ring and the first connecting ring.

[0009] Preferably, the gear and the volute spring are arranged in the middle of the locking box, one end of the volute spring is fixedly connected with the wall body of the locking box, and the volute spring can make the rotating rod generate a winding force for the connecting rope.

[0010] Preferably, the outer surface of the double-petal sealing plate is fixedly connected with a sealing ring, the discharge port of the pipeline is fixedly connected with a discharging flange plate, and the sealing baffle ring is arranged on the side of the double-petal sealing plate close to the discharging flange plate, so that the closing sealing strength of the double-petal sealing plate is improved through the sealing ring, and the pipeline is conveniently connected through the discharging flange plate.

[0011] Preferably, the locking mechanism comprises an insertion rod inserted in one end of the locking box, the two ends of the insertion rod are fixedly connected with a second limiting plate and a pull ring respectively, and the end of the insertion rod close to the second limiting plate is sleeved with a spring.

[0012] Preferably, the side, away from the insertion rod, of the second limiting plate is fixedly connected with a positioning top block, and the cross-sectional shape of the positioning top block is a right-angled triangle.

[0013] Preferably, the cross-sectional shape of the teeth of the outer surface of the gear is a right-angled triangle, the gear is arranged on one side of the positioning top block, the teeth of the surface of the gear are engaged with the positioning top block, the positioning of the gear through the positioning top block can realize the positioning of the rotating rod, the positioning top block can generate a force engaged with the gear through the pushing of the spring on the second limiting plate, the positioning top block and the gear can be separated through pulling the pull ring, the use is conveniently controlled, the positioning top block and the teeth of the surface of the gear can be misaligned through the clockwise rotation of the rotating disc, the rotating disc is limited, the counterclockwise rotation of the rotating disc is avoided, and the use is facilitated.

[0014] The technical effects and advantages of the utility model are as follows:

[0015] 1. The utility model discloses a first through the setting of scroll spring can make rotating rod produce the force of winding connecting rope, and through the limiting of positioning top block to gear, can realize avoiding the force of connecting rope slack, thereby improving the adhesion strength of double -paddle sealing plate and sealing baffle ring, improve the sealing strength, will not cause the power source loss of control cylinder start, lead to the sealing of double -paddle sealing plate slack, thereby appearing the condition of gas leakage, improve the sealing strength;

[0016] 2. The utility model discloses still through the setting of the gear surface tooth is set up as right triangle, can directly pull connecting rope when cylinder starts opening double -paddle sealing plate and make rotating rod rotate, positioning top block will not limit reverse rotation of rotating rod at this moment, convenient to open drive to double -paddle sealing plate, when closing double -paddle sealing plate, can pull the pull ring and remove the limiting of rotating rod at this moment, can pull and wind connecting rope, realize the fixation to double -paddle sealing plate, improve use effect;

[0017] Summarizing, through the mutual influence of above-mentioned multiple effects, can pull and wind two connecting ropes through rotating rod, can control the limiting of two double -paddle sealing plate closed state through the mode of linkage, thereby improve the sealing strength, will not cause the power source loss of control cylinder start, lead to the sealing of double -paddle sealing plate slack, thereby appearing the condition of gas leakage. ACCURACY

[0018] Figure 1 It is the whole structure schematic diagram of the utility model.

[0019] Figure 2 It is the sectional solid structure schematic diagram of the utility model.

[0020] Figure 3 It is the sectional structure schematic diagram of the utility model.

[0021] Figure 4 It is the utility model Figure 3 The local amplification structure schematic diagram of A place in the utility model.

[0022] Figure 5 It is the connecting structure schematic diagram of rotating rod and plug rod of the utility model.

[0023] Figure 6 It is the split structure schematic diagram of rotating rod and plug rod of the utility model.

[0024] The attached diagram is labeled as follows: 1. Pipe; 2. Sealing ring; 3. Double-lobed sealing plate; 4. Cylinder; 5. Feeding flange; 6. Sealing ring; 7. First connecting ring; 8. Rotating rod; 9. Locking box; 10. Connecting rope; 11. First limiting plate; 12. Second connecting ring; 13. Gear; 14. Scroll spring; 15. Rotating disk; 16. Insert rod; 17. Second limiting plate; 18. Pull ring; 19. Spring; 20. Positioning top block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] As attached Figures 1-6 The acetylene inlet valve double-lobe linkage locking device shown includes a pipe 1. Two double-lobe sealing plates 3 are rotatably connected to the middle of the pipe 1 via a fixed rod. A cylinder 4 is provided at the top of the pipe 1 to control the opening and closing of the double-lobe sealing plates 3. A sealing ring 2 is fixedly connected to one side of the double-lobe sealing plates 3 in the middle of the pipe 1. The sealing ring 2 can improve the sealing strength of the pipe 1 when the double-lobe sealing plates 3 are closed. A first connecting ring 7 is fixedly connected to the side of the double-lobe sealing plates 3 near the sealing ring 2. A rotating rod 8 is inserted in the middle of the pipe 1.

[0027] A locking box 9 is fixedly connected to one side of the pipe 1. Connecting ropes 10 are wound around the two ends of the rotating rod 8 at positions corresponding to the first connecting ring 7. A second connecting ring 12 is fixedly connected to one end of the connecting rope 10. A first limiting plate 11 is symmetrically fixedly connected to the middle of the rotating rod 8 at both sides of the connecting rope 10. Rotating the rotating rod 8 can pull the connecting rope 10, thereby pulling one end of the double-lobed sealing plate 3 through the cooperation of the second connecting ring 12 and the first connecting ring 7, improving the adhesion strength between the double-lobed sealing plate 3 and the sealing retaining ring 2, thereby improving the sealing strength. This prevents the control of the double-lobed sealing plate 3 from loosening after the instrument air of the cylinder 4 stops, thus preventing air leakage. It can realize the linkage locking and fixing of the double-lobed sealing plate 3, improving the sealing strength.

[0028] One end of the rotating rod 8 passes through the locking box 9 and is fixedly connected to the rotating disk 15. A gear 13 and a spiral spring 14 are fixedly sleeved on the end of the rotating rod 8 near the locking box 9. A locking mechanism is provided in the middle of the locking box 9. The rotating disk 15 facilitates the rotation of the rotating rod 8. The spiral spring 14 can generate a force to wind the connecting rope 10 when the rotation of the rotating rod 8 is not limited. The locking mechanism can fix the position of the gear 13, thereby fixing the pulling position of the connecting rope 10 and improving the stability of the double-lobed sealing plate 3.

[0029] As attached Figures 1-4 As shown, the second connecting ring 12 is connected to the first connecting ring 7. The wall of the double-lobed sealing plate 3 is tightly fitted with the wall of the sealing retaining ring 2. A sealing ring is provided between the rotating rod 8 and the pipe 1. The gear 13 and the spiral spring 14 are both located in the middle of the locking box 9. One end of the spiral spring 14 is fixedly connected to the wall of the locking box 9. A sealing ring 6 is fixedly connected to the outer surface of the double-lobed sealing plate 3. A discharge flange 5 is fixedly connected to the outlet of the pipe 1. The sealing retaining ring 2 is located on the side of the double-lobed sealing plate 3 near the discharge flange 5. By pulling the connecting rope 10, the double-lobed sealing plate 3 can be pulled by the cooperation of the second connecting ring 12 and the first connecting ring 7. The spiral spring 14 can cause the rotating rod 8 to generate a winding force on the connecting rope 10. The sealing ring 6 improves the closing sealing strength of the double-lobed sealing plate 3. The discharge flange 5 facilitates connection with the pipe.

[0030] As attached Figures 3-6 As shown, the locking mechanism includes a rod 16 inserted into one end of the locking box 9. A second limiting plate 17 and a pull ring 18 are fixedly connected to both ends of the rod 16, respectively. A spring 19 is sleeved on the end of the rod 16 closest to the second limiting plate 17. A positioning block 20 is fixedly connected to the side of the second limiting plate 17 away from the rod 16. The cross-sectional shape of the positioning block 20 is a right-angled triangle. The cross-sectional shape of the outer surface teeth of the gear 13 is also a right-angled triangle. The gear 13 is positioned on one side of the positioning block 20, and the surface teeth of the gear 13 are aligned with the positioning block 20. The positioning top block 20 engages with the gear 13, thereby limiting the rotation rod 8. The spring 19 pushes the second limiting plate 17, causing the positioning top block 20 to generate a force that meshes with the gear 13. Pulling the pull ring 18 allows for easy control of the separation between the positioning top block 20 and the gear 13, facilitating operation. Furthermore, rotating the rotating disk 15 clockwise can cause the teeth on the surface of the positioning top block 20 and the gear 13 to misalign, limiting the rotation of the rotating disk 15 and preventing it from rotating counterclockwise, thus facilitating operation.

[0031] It is worth noting that the structure and connection mode of the double-clap sealing plate 3 and the cylinder 4 are prior art, and will not be described in detail. The moving end of the cylinder 4 can be connected through a guide roller and a connecting line to pull open and release the double-clap sealing plate 3. When the double-clap sealing plate 3 is pulled open, the double-clap sealing plate 3 is closed by the pressure and impact force of the gas exhaust.

[0032] The working principle of the utility model is as follows: when in use, the double-clap sealing plate 3 is opened and closed by the cylinder 4 to realize the opening and closing of the acetylene conveying pipeline. When the double-clap sealing plate 3 is opened by starting the cylinder 4, the connecting rope 10 can be directly pulled to rotate the rotating rod 8. At this time, the positioning top block 20 will not limit the rotation of the rotating rod 8.

[0033] When the double-clap sealing plate 3 is closed by the cylinder 4, the positioning top block 20 can be dislocated with the gear wall by pulling the pull ring 18. At this time, the torsion of the rotating rod 8 generated by the volute spring 14 can control the rotating rod 8 to automatically wind the connecting rope 10. Then, the rotating disc 15 can be rotated in the same direction to increase the pulling strength of the connecting rope 10 on the double-clap sealing plate 3.

[0034] Then, the pull ring 18 is released to push the second limiting plate 17 by the spring 19, so that the positioning top block 20 is engaged with the gear 13. The position of the gear 13 can be fixed, so that the position of the double-clap sealing plate 3 can be fixed, the sealing strength of the double-clap sealing plate 3 and the sealing baffle ring 2 is improved, and the sealing strength of the double-clap sealing plate 3 and the sealing baffle ring 2 is not affected when the power source of the cylinder 4 is lost, and the anti-leakage effect is improved.

[0035] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A double-lobe linkage locking device for an acetylene feed port valve, comprising a pipe (1), wherein two double-lobe sealing plates (3) are rotatably connected to the middle of the pipe (1) via a fixed rod, and a cylinder (4) for controlling the opening and closing of the double-lobe sealing plates (3) is provided at the top of the pipe (1), characterized in that: The middle part of the pipeline (1) is fixedly connected with a sealing baffle ring (2) on one side of a double-clapboard sealing plate (3), the double-clapboard sealing plate (3) is fixedly connected with a first connecting ring (7) on the side close to the sealing baffle ring (2), and a rotating rod (8) is inserted into the middle part of the pipeline (1); One side of the pipeline (1) is fixedly connected with a locking box (9), the two ends of the rotating rod (8) are wound with a connecting rope (10) at positions corresponding to the first connecting ring (7), one end of the connecting rope (10) is fixedly connected with a second connecting ring (12), and the middle part of the rotating rod (8) is fixedly connected with first limiting plates (11) at positions symmetrically located on the two sides of the connecting rope (10); One end of the rotating rod (8) penetrates through the locking box (9) and is fixedly connected with a rotating disc (15), a gear (13) and a volute spring (14) are fixedly sleeved on the end of the rotating rod (8) close to the locking box (9), and the middle part of the locking box (9) is provided with a locking mechanism.

2. The valve double flap interlocking locking device for acetylene charging port according to claim 1, characterized in that: The second connecting ring (12) is connected with the first connecting ring (7), the wall body of the double-clapboard sealing plate (3) is tightly attached to the wall body of the sealing baffle ring (2), and a sealing ring is arranged between the rotating rod (8) and the pipeline (1).

3. The valve double flap interlocking locking device of acetylene charging port according to claim 1, characterized in that: The gear (13) and the volute spring (14) are both arranged in the middle part of the locking box (9), and one end of the volute spring (14) is fixedly connected with the wall body of the locking box (9).

4. The valve double flap interlocking locking device for acetylene charging port according to claim 1, characterized in that: The outer surface of the double-clapboard sealing plate (3) is fixedly connected with a sealing ring (6), the discharge port of the pipeline (1) is fixedly connected with a discharging flange plate (5), and the sealing baffle ring (2) is arranged on the side of the double-clapboard sealing plate (3) close to the discharging flange plate (5).

5. The valve double flap interlocking locking device for acetylene charging port according to claim 1, characterized in that: The locking mechanism comprises a plug rod (16) inserted into one end of the locking box (9), the two ends of the plug rod (16) are fixedly connected with a second limiting plate (17) and a pull ring (18) respectively, and the end of the plug rod (16) close to the second limiting plate (17) is sleeved with a spring (19).

6. The valve double flap interlocking locking device of acetylene charging port according to claim 5, characterized in that: The side, away from the plug rod (16), of the second limiting plate (17) is fixedly connected with a positioning top block (20), and the cross-sectional shape of the positioning top block (20) is arranged as a right-angled triangle.

7. The valve double-poppet interlock for acetylene feed port according to claim 1, wherein: The external teeth of the gear (13) are arranged as a right-angled triangle in cross-sectional shape, the gear (13) is arranged on one side of the positioning top block (20), and the surface teeth of the gear (13) are engaged with the positioning top block (20).

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