Gas safety self-closing valve with high safety

Abstract

The utility model discloses a gas safety self-closing valve with high safety, which belongs to the field of gas safety self-closing valves and comprises a self-closing valve main body and a valve rod mounted on the upper surface of the self-closing valve main body, and an L-shaped fixing plate I and two support plates are detachably mounted on the front side surface of the self-closing valve main body through mounting components; according to the high-safety gas safety self-closing valve, a two-way threaded rod, a first protection plate, a second protection plate, a first bevel gear and a second bevel gear are arranged, the two-way threaded rod is supported through a supporting plate, a rotating shaft is driven to rotate by combining the action of a sliding base and a first connecting plate, and through the meshing action of the first bevel gear and the second bevel gear, the safety of the gas safety self-closing valve is improved. The first protection plate drives the second protection plate to gradually shield the connecting position on the self-closing valve body, shielding protection is conducted on the connecting position of the self-closing valve body, the connecting position of the self-closing valve body cannot be corroded and rusted, and then the service life of the self-closing valve body is greatly prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gas safety self -closing valve technical field, concretely relates to a kind of gas safety self -closing valve of high safety. BACKGROUND

[0002] Gas is the general term of gaseous fuel, it can burn and release heat, for urban residents and industrial enterprises use, there are many kinds of gas, mainly natural gas, artificial gas, liquefied petroleum gas and biogas, as clean energy of our country low pollution high efficiency, gas has gradually popularized to large and small towns and villages, has been in-depth to thousands of households Gas solenoid valve is the safety emergency shut-off device of gas pipeline, with remote control cutoff and manual closing function, can be linked with gas alarm to realize remote control emergency shut-off gas source, ensure gas safety.

[0003] At present, when gas self-closing valve is used, manual self-closing valves are usually installed in rural areas. Because the connection of the self-closing valve has no equipment shielding protection structure, the connection of the self-closing valve is prone to corrosion and rust after long-term use, thereby greatly reducing the service life of the self-closing valve and affecting the normal use of the self-closing valve. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of gas safety self -closing valve of high safety to solve the problem that the current gas self-closing valve is used in the above background technology, and manual self-closing valves are usually installed in rural areas. Because the connection of the self-closing valve has no equipment shielding protection structure, the connection of the self-closing valve is prone to corrosion and rust after long-term use, thereby greatly reducing the service life of the self-closing valve and affecting the normal use of the self-closing valve.

[0005] To achieve the above object, the utility model provides the following technical scheme: including self-closing valve main part and the valve rod installed on the upper surface of self-closing valve main part, the front side of self-closing valve main part is detachably installed with L-shaped fixed plate one and two supporting plates through mounting assembly, two supporting plates are rotatably installed with bidirectional screw rod between, two sections of threads of bidirectional screw rod are all screw-installed with slide seat, one side of two slide seats is all installed with L-shaped connecting plate one, one end of connecting plate one is installed with arc-shaped protection plate one, the top end of protection plate one is hingedly installed with arc-shaped protection plate two, the middle non-threaded portion of bidirectional screw rod is installed with bevel gear one, the rotating shaft is rotatably installed on fixed plate one, one end of rotating shaft is installed with bevel gear two meshing with bevel gear one, the other end of rotating shaft is installed with operating plate.

[0006] By adopting the above scheme, through the setting of a bidirectional threaded rod, a first protective plate, a second protective plate, a first bevel gear, and a second bevel gear, and using a support plate to support the bidirectional threaded rod, combined with the function of the slide block and the first connecting plate, the drive shaft rotates. The meshing action of the first and second bevel gears causes the first protective plate to drive the second protective plate to gradually shield the connection points on the self-closing valve body, thus protecting the connection points of the self-closing valve body from corrosion and rust, thereby greatly extending the service life of the self-closing valve body and ensuring its normal use.

[0007] In a preferred embodiment, the mounting assembly includes an arc-shaped mounting plate, with a fixing plate and two support plates mounted on the front side of the mounting plate. Bolts are threaded onto the four corners of the mounting plate, and the tail ends of the bolts pass through the mounting plate and are threadedly connected to the self-closing valve body.

[0008] By using the above solution, the mounting plate and bolts are used to fix and support the support plate and the fixing plate. Combined with the function of the bolts, the mounting plate is fixed at the same time, and it is also convenient to loosen the bolts to disassemble the mounting plate at any time in the future, making the operation convenient.

[0009] In a preferred embodiment, two positioning pins are installed on the rear side of the mounting plate, and two positioning grooves are provided on the front side of the self-closing valve body to cooperate with the positioning pins, with one end of the positioning pin extending into the positioning groove.

[0010] By adopting the above solution, a positioning pin is set, and one end of the positioning pin is located in the positioning groove. The positioning pin determines the installation position of the mounting plate, thereby facilitating and quickly installing the mounting plate and improving the installation speed.

[0011] In a preferred embodiment, two rubber posts are installed at the bottom of each of the two protective plates, one end of which is conical, and the bottom of the second protective plate abuts against the rubber posts.

[0012] By adopting the above scheme, rubber columns are set up to support the bottom of the second protective plate, so that the first and second protective plates can form a stable circle. This avoids the phenomenon of the bottom of the second protective plate being wider at the top and narrower at the bottom when they come into contact with the bottom of the first protective plate, thereby improving the horizontal stability of the second and first protective plates.

[0013] In a preferred embodiment, two springs are installed on opposite sides of the two support plates. One end of each spring is fixedly connected to a slide block. A telescopic rod installed on the support plate is provided inside each spring, and the telescopic shaft of the telescopic rod is fixedly connected to the slide block.

[0014] By adopting the above scheme, by setting up spring one and telescopic rod, the extension of telescopic rod is used to limit and support the slide, so that the slide can move horizontally left and right stably when driven by the bidirectional threaded rod. Combined with the elastic effect of spring one, the speed of the slide movement is buffered.

[0015] In a preferred embodiment, a U-shaped cover plate is installed on the front side of the mounting plate, and the cover plate is located above the first bevel gear, the rotating shaft, and the second bevel gear.

[0016] By adopting the above solution, a cover plate is set up. The U-shaped cover plate covers the bevel gear 1 and bevel gear 2, preventing oil stains from dripping onto bevel gear 1 and bevel gear 2 during long-term use, thereby ensuring that bevel gear 1 and bevel gear 2 can mesh smoothly.

[0017] In a preferred embodiment, arc-shaped wiping plates are provided on both the left and right sides of the valve stem. Fixing plates are installed on the opposite sides of the two wiping plates. Two sliding rods are provided between the two fixing plates. Two U-shaped connecting plates are slidably installed on the sliding rods. One end of the connecting plate is fixedly connected to the fixing plate on the same side. Springs are sleeved on the sliding rods, with both ends fixedly connected to the two connecting plates respectively.

[0018] By adopting the above solution, a wiping plate, a sliding rod, and a second spring are set up. The wiping plate is supported by the sliding action of the second connecting plate on the sliding rod. Combined with the action of the wiping plate, oil stains or dirt on the outside of the valve stem are wiped away, thereby maintaining the cleanliness of the outside of the valve stem and preventing the accumulation of too much dirt on the outside of the valve stem. Combined with the elastic action of the second spring, the wiping plate is fixed to the valve stem in time, thereby preventing the wiping plate from slipping off.

[0019] In a preferred embodiment, baffles are installed at both ends of the slide rod, and the baffles are located between the two ends of the connecting plate two on the same side.

[0020] By adopting the above solution, baffles are set up to seal both ends of the slide rod, preventing the connecting plate two from falling off when sliding on the slide rod, and further improving the stability of the connecting plate two when sliding.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This highly secure gas safety self-closing valve is equipped with a bidirectional threaded rod, a first protection plate, a second protection plate, a first bevel gear, and a second bevel gear. The bidirectional threaded rod is supported by a support plate. Combined with the function of the slide block and the first connecting plate, the drive shaft rotates. The meshing of the first and second bevel gears causes the first protection plate to drive the second protection plate to gradually shield the connection points on the valve body. This shielding and protection prevents corrosion and rust at the connection points of the valve body, thus greatly extending the service life of the valve body and ensuring its normal operation.

[0023] This highly secure gas safety self-closing valve uses rubber columns to support the bottom of the second protection plate, allowing the first and second protection plates to form a stable circle. This prevents the bottom of the second protection plate from contacting the bottom of the first protection plate, which would create a top-wide, bottom-narrow shape, thus improving the horizontal stability of the first and second protection plates. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is an enlarged structural schematic diagram of section A of this utility model;

[0026] Figure 3 This is a rear view structural diagram of the mounting plate of this utility model;

[0027] Figure 4 This is a top view of the fixing plate of this utility model.

[0028] Figure 5 This is a rear view structural diagram of the protective plate of this utility model.

[0029] In the diagram: 1. Self-closing valve body; 2. Valve stem; 3. Support plate; 4. Two-way threaded rod; 5. Slide seat; 6. Connecting plate one; 7. Protective plate one; 8. Protective plate two; 9. Bevel gear one; 10. Bevel gear two; 11. Fixing plate one; 12. Rotating shaft; 13. Bolt; 14. Mounting plate; 15. Positioning pin; 16. Telescopic rod; 17. Spring one; 18. Rubber column; 19. Wiping plate; 20. Fixing plate two; 21. Slide rod; 22. Spring two; 23. Baffle; 24. Connecting plate two; 25. Cover plate. Detailed Implementation

[0030] Please see Figures 1-5This utility model provides a high-safety gas safety self-closing valve, including a self-closing valve body 1 and a valve stem 2 installed on the upper surface of the self-closing valve body 1. An L-shaped fixing plate 11 and two support plates 3 are detachably installed on the front side of the self-closing valve body 1 via an installation assembly. A bidirectional threaded rod 4 is rotatably installed between the two support plates 3. Slide seats 5 are threaded onto both ends of the bidirectional threaded rod 4. L-shaped connecting plates 6 are installed on opposite sides of the two slide seats 5. An arc-shaped protective plate 7 is installed at one end of the connecting plate 6. An arc-shaped protective plate 8 is hinged to the top of the protective plate 7. A bevel gear 9 is installed at the unthreaded middle section of the bidirectional threaded rod 4. A rotating shaft 12 is rotatably installed through the fixing plate 11. One end of the shaft 12 is equipped with a bevel gear 10 that meshes with bevel gear 9, and the other end of the shaft 12 is equipped with an operating plate. By setting up a bidirectional threaded rod 4, a protective plate 7, a protective plate 8, bevel gear 9, and bevel gear 10, and using a support plate 3 to support the bidirectional threaded rod 4, combined with the action of the slide block 5 and the connecting plate 6, the shaft 12 is driven to rotate. The meshing action of bevel gear 9 and bevel gear 10 causes the protective plate 7 to drive the protective plate 8 to gradually cover the connection on the self-closing valve body 1, thus protecting the connection of the self-closing valve body 1 from corrosion and rust, thereby greatly extending the service life of the self-closing valve body 1 and ensuring its normal use.

[0031] The mounting assembly includes an arc-shaped mounting plate 14, a fixing plate 11, and two support plates 3, all mounted on the front side of the mounting plate 14. Bolts 13 are threaded onto the four corners of the mounting plate 14. The tail ends of the bolts 13 pass through the mounting plate 14 and are threadedly connected to the self-closing valve body 1. By setting up the mounting plate 14 and the bolts 13, the mounting plate 14 is used to fix and support the support plates 3 and the fixing plate 11. Combined with the function of the bolts 13, the mounting plate 14 is fixed while also making it easy to loosen the bolts 13 to disassemble the mounting plate 14 at any time, making the operation convenient.

[0032] Two positioning pins 15 are installed on the rear side of the mounting plate 14. Two positioning grooves are provided on the front side of the self-closing valve body 1 to cooperate with the positioning pins 15. One end of the positioning pin 15 extends into the positioning groove. By setting the positioning pin 15, the installation position of the mounting plate 14 is determined by the positioning pin 15, which makes it easier and faster to install the mounting plate 14 and improves the installation speed of the mounting plate 14.

[0033] Two rubber posts 18 are installed at the bottom of each of the two protective plates 7. One end of the rubber post 18 is conical. The bottom of the protective plate 8 abuts against the rubber post 18. By setting the rubber post 18, the bottom of the protective plate 8 is supported by the rubber post 18, so that the protective plates 7 and 8 can form a stable circle. This avoids the phenomenon of the bottom of the protective plate 8 being wider at the top and narrower at the bottom when it contacts the bottom of the protective plate 7, thereby improving the horizontal stability of the protective plates 7 and 8.

[0034] Two springs 17 are installed on opposite sides of the two support plates 3. One end of the spring 17 is fixedly connected to the slide block 5. A telescopic rod 16 is installed inside the spring 17 and mounted on the support plate 3. The telescopic shaft of the telescopic rod 16 is fixedly connected to the slide block 5. By setting the spring 17 and the telescopic rod 16, the extension of the telescopic rod 16 is used to limit and support the slide block 5, so that the slide block 5 can move horizontally left and right stably when driven by the bidirectional threaded rod 4. Combined with the elasticity of the spring 17, the speed of the slide block 5 during movement is buffered.

[0035] A U-shaped cover plate 25 is installed on the front side of the mounting plate 14. The cover plate 25 is located above the first bevel gear 9, the rotating shaft 12, and the second bevel gear 10. By setting the cover plate 25, the U-shaped cover plate 25 can block the first bevel gear 9 and the second bevel gear 10, preventing oil stains from dripping onto the first bevel gear 9 and the second bevel gear 10 after long-term use, thereby ensuring that the first bevel gear 9 and the second bevel gear 10 can mesh smoothly.

[0036] Both sides of the valve stem 2 are provided with arc-shaped wiping plates 19. On the opposite side of each wiping plate 19, a fixing plate 20 is installed. Between the two fixing plates 20, there are two sliding rods 21. Two U-shaped connecting plates 24 are slidably installed on the sliding rods 21. One end of the connecting plate 24 is fixedly connected to the fixing plate 20 on the same side. Springs 22 are sleeved on the sliding rods 21, with their two ends fixedly connected to the two connecting plates 24 respectively. By setting up the wiping plates 19, sliding rods 21 and springs 22, the wiping plates 19 are supported by the sliding action of the connecting plates 24 on the sliding rods 21. Combined with the action of the wiping plates 19, oil stains or dirt on the outside of the valve stem 2 are wiped, thereby maintaining the cleanliness of the outside of the valve stem 2 and preventing the accumulation of too much dirt on the outside of the valve stem 2. Combined with the elastic action of the springs 22, the wiping plates 19 are fixed to the valve stem 2 in time, thereby preventing the wiping plates 19 from slipping off.

[0037] Baffles 23 are installed at both ends of the slide rod 21. The baffles 23 are located between the two ends of the connecting plate 24 on the same side. By setting the baffles 23, the two ends of the slide rod 21 are blocked by the baffles 23, so as to prevent the connecting plate 24 from falling off when sliding on the slide rod 21, and further improve the stability of the connecting plate 24 when sliding.

[0038] In use, fold the second protective plate 8 upwards, then move the mounting plate 14 toward the self-closing valve body 1. The mounting plate 14 drives one end of the positioning pin 15 to extend into the positioning groove. Then, rotate the bolt 13 to fix the mounting plate 14. Rotate the operating plate, which drives the rotating shaft 12 to rotate. The rotating shaft 12 drives the second bevel gear 10 to rotate. Combined with the meshing action of the first bevel gear 9 and the second bevel gear 10, the first bevel gear 9 rotates, which drives the double-threaded rod 4 to rotate. When the double-threaded rod 4 rotates, it drives the slide 5 to move. The two slides 5 move relative to each other, and the slide 5 drives the first connecting plate 6 to move. The first connecting plate 6 drives the first protective plate 7 to move, and the first protective plate 7 drives the second protective plate 8 to move. When the protective plate... When the first protective plate 7 moves to the connection point of the self-closing valve body 1, stop rotating the operating plate and then lower the second protective plate 8. At this time, the first protective plate 7 and the second protective plate 8 form a circle to protect the connection point of the self-closing valve body 1. Then move the wiping plate 19. The wiping plate 19 drives the second fixed plate 20 to move. The second fixed plate 20 drives the second connecting plate 24 to slide on the slide rod 21. The second connecting plate 24 stretches the second spring 22. At this time, the distance between the two wiping plates 19 gradually increases. Then place the wiping plates 19 on both sides of the valve stem 2. Then release the wiping plates 19. The wiping plates 19 are clamped to the valve stem 2 by the reaction force of the second spring 22. Then rotate the wiping plates 19 to clean and wipe the stains on the valve stem 2.

Claims

1. A high-safety gas safety self-closing valve, characterized in that: The device includes a self-closing valve body (1) and a valve stem (2) mounted on the upper surface of the self-closing valve body (1). An L-shaped fixing plate (11) and two support plates (3) are detachably mounted on the front side of the self-closing valve body (1) via a mounting assembly. A bidirectional threaded rod (4) is rotatably mounted between the two support plates (3). Slide seats (5) are threaded onto both ends of the bidirectional threaded rod (4). An L-shaped connecting plate (6) is mounted on the opposite side of each of the two slide seats (5). An arc-shaped protective plate 1 (7) is installed at one end of the connecting plate 1 (6), and an arc-shaped protective plate 2 (8) is hinged to the top of the protective plate 1 (7). A bevel gear 1 (9) is installed at the unthreaded part in the middle of the bidirectional threaded rod (4). A rotating shaft (12) is rotatably installed on the fixing plate 1 (11). A bevel gear 2 (10) that meshes with the bevel gear 1 (9) is installed at one end of the rotating shaft (12), and an operating plate is installed at the other end of the rotating shaft (12).

2. The high-safety gas safety self-closing valve according to claim 1, characterized in that: The mounting assembly includes an arc-shaped mounting plate (14), a fixing plate (11) and two support plates (3) are mounted on the front side of the mounting plate (14), and bolts (13) are threadedly installed at the four corners of the mounting plate (14). The tail end of the bolt (13) passes through the mounting plate (14) and is threadedly connected to the self-closing valve body (1).

3. The high-safety gas safety self-closing valve according to claim 2, characterized in that: Two positioning pins (15) are installed on the rear side of the mounting plate (14), and two positioning grooves are provided on the front side of the self-closing valve body (1) to cooperate with the positioning pins (15). One end of the positioning pin (15) extends into the positioning groove.

4. The high-safety gas safety self-closing valve according to claim 1, characterized in that: Two rubber posts (18) are installed at the bottom of each of the two protective plates (7). One end of the rubber post (18) is conical, and the bottom of the protective plate (8) abuts against the rubber post (18).

5. The high-safety gas safety self-closing valve according to claim 1, characterized in that: Two springs (17) are installed on opposite sides of the two support plates (3). One end of the spring (17) is fixedly connected to the slide (5). A telescopic rod (16) is installed inside the spring (17) and is mounted on the support plate (3). The telescopic shaft of the telescopic rod (16) is fixedly connected to the slide (5).

6. The high-safety gas safety self-closing valve according to claim 2, characterized in that: A U-shaped cover plate (25) is installed on the front side of the mounting plate (14), and the cover plate (25) is located above the first bevel gear (9), the rotating shaft (12) and the second bevel gear (10).

7. The high-safety gas safety self-closing valve according to claim 1, characterized in that: The valve stem (2) is provided with arc-shaped wiping plates (19) on both the left and right sides. The two wiping plates (19) are each mounted with a fixing plate (20) on the opposite side. There are two sliding rods (21) between the two fixing plates (20). Two U-shaped connecting plates (24) are slidably mounted on the sliding rods (21). One end of the connecting plate (24) is fixedly connected to the fixing plate (20) on the same side. Springs (22) are sleeved on the sliding rods (21) and fixedly connected to the two connecting plates (24) at both ends respectively.

8. The high-safety gas safety self-closing valve according to claim 7, characterized in that: The slide bar (21) is equipped with baffles (23) at both ends, and the baffles (23) are located between the two ends of the connecting plate (24) on the same side.

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