Air cylinder pneumatic valve convenient to disassemble and assemble

Abstract

The utility model discloses an air cylinder pneumatic valve convenient to disassemble and assemble, and relates to the technical field of pneumatic valves. The pneumatic valve comprises a pneumatic valve body, main body flanges, butt joint flanges, L-shaped claws and a sealing air bag, and is characterized in that the main body flanges which are communicated with each other are arranged at connectors at the two ends of the pneumatic valve body respectively, and counter bores for butt joint of the butt joint flanges are formed in one sides of the two main body flanges respectively. A counter bore is formed in the main body flange, an embedding groove for installing the sealing air bag is formed in the side wall of the counter bore, and the outer shape of the sealing air bag is of an annular structure. The two T-shaped rods which are distributed in a cross mode are matched with the studs and the nuts to conduct auxiliary fixing on every two L-shaped claws, so that a main body flange and a butt joint flange which need to be in butt joint are locked, and compared with the mode that multiple sets of bolts are used for fixing in the prior art, the installation efficiency and the disassembly and replacement efficiency of the device are obviously improved.

Description

Technical Field

[0001] The utility model belongs to the field of pneumatic valves, and in particular relates to a cylinder pneumatic valve which is easy to assemble and disassemble. Background Art

[0002] Pneumatic valve: A valve driven by compressed air. The pneumatic valve consists of an actuator and a regulating mechanism. The actuator is the thrust component of the regulating valve. It generates corresponding thrust according to the size of the control signal pressure to push the regulating mechanism to operate. The valve body is the regulating component of the pneumatic regulating valve. It is in direct contact with the regulating medium to regulate the flow of the fluid.

[0003] Pneumatic valves are generally flange-connected to pipeline equipment through pipeline interfaces at their lower ends, and the flanges are fixed with multiple sets of bolts. When maintenance or replacement is required, it is time-consuming and labor-intensive, and inconvenient to disassemble and assemble, which reduces the efficiency of pneumatic valve maintenance or replacement. In view of this, the present utility model is specially proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a cylinder pneumatic valve which is easy to disassemble and assemble.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A cylinder pneumatic valve that is easy to disassemble and assemble, comprising a pneumatic valve body, a main body flange, a docking flange, an L-shaped claw and a sealing airbag, wherein the interfaces at both ends of the pneumatic valve body are respectively provided with main body flanges that are interconnected, countersunk holes for docking the docking flanges are provided on one side of the two main body flanges, an embedding groove for installing the sealing airbag is provided on the side wall of the countersunk hole, and the outer shape of the sealing airbag is a ring structure;

[0007] The outer side wall of the flange of each main body is cross-shaped and mounted with four L-shaped claws for fixing the mating flange. The inner side wall of each L-shaped claw is fixed with a non-slip pad in contact with the outer side surface of the mating flange. The side walls of two L-shaped claws are fixed with a rotating seat for the T-shaped rod to be hinged, and the bottom of the T-shaped rod is fixed with a stud for connecting the nut, and the side walls of the other two L-shaped claws are fixed with a U-shaped seat for the stud to be placed.

[0008] Optionally, the two T-shaped bars are distributed in a cross shape.

[0009] Optionally, an outer side wall of the nut is provided with extended handles at equal intervals for a user to rotate the nut, and a surface of the nut is in conflict with a surface of the U-shaped seat.

[0010] Optionally, a sealing annular gasket in contact with the inner surface of the mating flange is fixed to the inner wall of the countersunk hole.

[0011] Optionally, a wear-resistant pad is fixed on the contact surface between the sealing airbag and the docking flange. The upper end of the sealing airbag passes through a main conduit to the outside of the main flange and is connected to the gas injection nozzle. A sealing cover is threadedly connected to the upper end of the gas injection nozzle. A sealing plug is provided in the middle of the sealing cover for sealing the opening of the gas injection nozzle.

[0012] Optionally, the side of the main guiding pipe is also connected to a guiding pipe, and a pressure detection gauge is installed at the end of the guiding pipe.

[0013] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0014] 1. After the utility model uses a plurality of four L-shaped claws to complete the fixation of the main flange and the docking flange, two cross-distributed T-shaped rods are used to cooperate with studs and nuts to auxiliary fix the two L-shaped claws, thereby locking the main flange and the docking flange that need to be docked. Compared with the method of fixing with multiple sets of bolts in the prior art, the installation efficiency and disassembly and replacement efficiency of the device are significantly improved. According to the disassembly distance, the extension tube is first rotated to rotate the nut. During the rotation of the nut, it will no longer conflict with the surface of the U-shaped seat. At this time, the T-shaped rod is directly adjusted upward to release the locking effect of the T-shaped rod, and then the L-shaped claws are rotated and opened in sequence to complete the disassembly of the main flange and the docking flange;

[0015] 2. The utility model plays an auxiliary sealing role for the main flange and the docking flange by arranging a sealing airbag. When the main flange and the docking flange are fixed by L-shaped claws, T-shaped rods, studs and nuts, the sealing airbag can be expanded by air injection to fill the gap between the countersunk hole of the main flange and the docking flange, thereby ensuring the sealing of the connection.

[0016] The specific implementation modes of the present utility model are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0018] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0019] Figure 2 It is a schematic side view of the structure of the combined parts of the main body flange, L-shaped claws and anti-slip pads in the utility model;

[0020] Figure 3 It is a schematic diagram of the parts structure of the U-shaped seat in the utility model;

[0021] Figure 4 It is a structural diagram of the combined parts of the main conduit, the main conduit and the gas injection nozzle in the utility model;

[0022] Figure 5 for Figure 1 Schematic diagram of the structure of the A part;

[0023] Figure 6 for Figure 1 Schematic diagram of the structure of part B.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Pneumatic valve body; 2. Main flange; 3. Docking flange; 4. Countersunk hole; 5. Sealing airbag; 6. L-shaped claw; 7. Anti-skid pad; 8. T-shaped rod; 9. Rotating seat; 10. Stud; 11. Nut; 12. U-shaped seat; 13. Extension handle; 14. Sealing ring gasket; 15. Wear-resistant pad; 16. Main guide tube; 17. Air injection nozzle; 18. Sealing cover; 19. Sealing plug; 20. Guide tube; 21. Pressure monitoring gauge.

[0026] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0027] The utility model is now described in further detail with reference to the accompanying drawings.

[0028] See also Figures 1 to 6 The utility model provides a technical solution: a cylinder pneumatic valve that is easy to disassemble and assemble, comprising a pneumatic valve body 1, a main body flange 2, a docking flange 3, an L-shaped claw 6 and a sealing airbag 5, the interfaces at both ends of the pneumatic valve body 1 are respectively provided with main body flanges 2 that are connected to each other, countersunk holes 4 for docking with the docking flanges 3 are provided on one side of the two main body flanges 2, and an embedded groove for installing the sealing airbag 5 is provided on the side wall of the countersunk hole 4, and the external shape of the sealing airbag 5 is a ring structure;

[0029] The outer side wall of the flange of each main body is cross-shaped and installed with four L-shaped claws 6 for fixing the docking flange 3. The inner side wall of each L-shaped claw 6 is fixed with an anti-skid pad 7 in contact with the outer surface of the docking flange 3. The side walls of two L-shaped claws 6 are fixed with a rotating seat 9 for hinged T-bars 8. The bottom of the T-bar 8 is fixed with a stud 10 for connecting nuts 11. The side walls of the other two L-shaped claws 6 are fixed with U-shaped seats 12 for the studs 10 to be placed. Considering that the pneumatic valve is generally flange-connected to the pipeline equipment through the pipeline interface at its lower end, the flanges are fixed with multiple groups of bolts when they need to be repaired or replaced, which is time-consuming and labor-intensive, inconvenient to disassemble and assemble, and reduces the efficiency of pneumatic valve repair or replacement. After the utility model uses multiple four L-shaped claws 6 to complete the fixation of the main flange 2 and the docking flange 3, two cross-distributed T-bars 8 are used to cooperate with the studs 10 and the nuts 11 to auxiliary fix the L-shaped claws 6 in pairs, thereby locking the main flange 2 and the docking flange 3 that need to be docked. Compared with the existing The prior art uses multiple sets of bolts for fixing, and the installation efficiency and disassembly and replacement efficiency of the device are significantly improved. According to the disassembly distance, first rotate the extension tube to make the nut 11 rotate. During the rotation of the nut 11, it will no longer conflict with the surface of the U-shaped seat 12. At this time, directly adjust the T-bar 8 to release the locking effect of the T-bar 8, and then turn the L-shaped claws 6 to open in turn to complete the disassembly of the main flange 2 and the docking flange 3, which is highly convenient. In terms of the installation steps, the prior art requires two personnel to complete the docking of the docking flange 3 and the main flange 2, and keep the screw holes relative to each other, and screw in the bolts in turn. The steps are cumbersome. The device only requires one person to complete the installation process, and directly docks the docking flange 3 with the countersunk hole 4 of the main flange 2. After the docking is completed, rotate the L-shaped claws 6 in turn so that the L-shaped claws 6 are in contact with the outer surface of the docking flange 3. At this time, the docking flange 3 and the main flange 2 are locked in position, and finally the two T-bars 8 are placed in the corresponding U-shaped seats 12 and the nuts 11 are tightened, which is highly convenient.

[0030] Among them, the two T-shaped rods 8 are cross-distributed. By setting two T-shaped rods 8 cross-distributed in a cross shape, cooperating with nuts 11 and studs 10, the two vertical L-shaped claws 6 and the two horizontal L-shaped claws 6 are locked in position, preventing the L-shaped claws 6 from slipping due to external forces.

[0031] Among them, the outer wall of the nut 11 is evenly spaced with extended handles 13 for the user to rotate the nut 11, and the surface of the nut 11 is in conflict with the surface of the U-shaped seat 12. The provision of the extended handle facilitates the equipment installer to disassemble or install the nut 11.

[0032] A sealing annular gasket 14 in contact with the inner surface of the docking flange 3 is fixed to the inner wall of the countersunk hole 4 . The sealing annular gasket 14 is provided to seal the contact surface between the main flange 2 and the connecting flange.

[0033] Among them, a wear-resistant pad 15 is fixed on the contact surface of the sealing airbag 5 and the docking flange 3. The upper end of the sealing airbag 5 passes through the main conduit 16 to the outside of the main flange 2 and is connected to the gas injection nozzle 17, and the upper end of the gas injection nozzle 17 is threadedly connected with a sealing cover 18. The middle part of the sealing cover 18 is provided with a sealing plug 19 for sealing the opening of the gas injection nozzle 17. The sealing airbag 5 is provided to assist in sealing the main flange 2 and the docking flange 3. When the main flange 2 and the docking flange 3 are fixed by the L-shaped claws 6, T-shaped rods 8, studs 10 and nuts 11, the sealing airbag 5 can be expanded by air injection to fill the gap between the countersunk hole 4 of the main flange 2 and the docking flange 3, thereby ensuring the sealing of the connection.

[0034] The side of the main guide tube 16 is also connected to an auxiliary guide tube 20 , and a pressure detection gauge 21 is installed at the end of the auxiliary guide tube 20 . The pressure detection gauge 21 facilitates the user to know whether the sealed airbag 5 is leaking.

[0035] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A cylinder pneumatic valve that is easy to disassemble and assemble, comprising a pneumatic valve body (1), a main flange (2), a docking flange (3), an L-shaped claw (6) and a sealing airbag (5), characterized in that: The two end interfaces of the pneumatic valve body (1) are respectively provided with main body flanges (2) that are interconnected, and countersunk holes (4) for docking with docking flanges (3) are provided on one side of the two main body flanges (2), and embedded grooves for installing sealing airbags (5) are provided on the side walls of the countersunk holes (4), and the external shape of the sealing airbag (5) is an annular structure; The outer side wall of the flange of each main body is cross-shaped and is equipped with four L-shaped claws (6) for fixing the mating flange (3). The inner side wall of each L-shaped claw (6) is fixed with a non-slip pad (7) in contact with the outer side surface of the mating flange (3). The side walls of two L-shaped claws (6) are fixed with a rotating seat (9) for hinged T-shaped rods (8). The bottom of the T-shaped rod (8) is fixed with a stud (10) for connecting a nut (11). The side walls of the other two L-shaped claws (6) are fixed with a U-shaped seat (12) for the stud (10) to be placed.

2. The cylinder pneumatic valve that is easy to disassemble and assemble according to claim 1 is characterized in that: The two T-shaped rods (8) are cross-distributed.

3. The cylinder pneumatic valve that is easy to disassemble and assemble according to claim 1, characterized in that: The outer wall of the nut (11) is provided with extended handles (13) at equal intervals for a user to rotate the nut (11), and the surface of the nut (11) is in conflict with the surface of the U-shaped seat (12).

4. The cylinder pneumatic valve that is easy to disassemble and assemble according to claim 1 is characterized in that: A sealing annular gasket (14) in contact with the inner surface of the butt flange (3) is fixed to the inner wall of the countersunk hole (4).

5. The cylinder pneumatic valve that is easy to assemble and disassemble according to claim 1, characterized in that: A wear-resistant pad (15) is fixed on the contact surface between the sealing airbag (5) and the docking flange (3); the upper end of the sealing airbag (5) passes through a main conduit (16) to the outside of the main flange (2) and is connected to an air injection nozzle (17); a sealing cover (18) is threadedly connected to the upper end of the air injection nozzle (17); a sealing plug (19) for sealing the opening of the air injection nozzle (17) is provided in the middle of the sealing cover (18).

6. The cylinder pneumatic valve that is easy to assemble and disassemble according to claim 5, characterized in that: The side of the main guide tube (16) is also connected to a guiding tube (20), and a pressure detection gauge (21) is installed at the end of the guiding tube (20).

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