CN210265989U - Anti-leakage micro pneumatic ball valve - Google Patents

Abstract

The utility model discloses a prevent pneumatic ball valve of microminiature of leakage, including pneumatic component, adapter sleeve, valve pipe, valve rod and spheroid, the top fixed connection of adapter sleeve and valve pipe is passed through to pneumatic component's bottom, pneumatic component's internally mounted has the valve rod, and the valve rod runs through and extends to the inside of valve pipe, the spheroid is installed to the bottom of valve rod, first packing ring is installed at the inboard top that the outer terminal surface of valve rod is located the adapter sleeve. The utility model discloses in, at first, after taking place to take off the silk by taking over way and valve pipe handing-over department screw thread, make to take over to say to the valve outside of tubes side slip, under the effect through extrusion spring, make the third packing ring along being taken over to say the direction extrusion, accomplish to taking off the benefit of silk back clearance department and decrease, solved the valve pipe and taken over the problem of taking over the silk back leakage of handing-over department, secondly, through the backflow function of the dual leak protection of first packing ring and second packing ring and back flow, the problem of valve pipe and pneumatic element junction leakage has been solved.

Description

Anti-leakage micro pneumatic ball valve

Technical Field

The utility model relates to a pneumatic ball valve technical field especially relates to a prevent pneumatic ball valve of microminiature of leakage.

Background

The pneumatic ball valve is a ball valve matched with a pneumatic actuator, the execution speed of the pneumatic actuator is relatively high, and the fastest switching speed is 0.05 second/time, so the pneumatic ball valve is also called as a pneumatic quick-cut ball valve. Pneumatic ball valves are usually equipped with various accessories, such as solenoid valves, air source processing triplets, limit switches, positioners, control boxes and the like, so as to realize local control and remote centralized control, and the valves can be controlled to be opened or closed in a control room without going to the field or bringing about manual control at high altitude and danger, thereby saving human resources, time and safety to a great extent.

However, the existing pneumatic ball valve still has the defects that: firstly, the mode that current pneumatic ball valve pipe and taken over pipeline junction are mostly closed through the screw soon and are connected, however the screw thread can exist and take off the silk, the rubber packing ring of junction after taking off the silk will appear not hard up, lead to the junction to appear leaking, pipeline handing-over department prevents leaking the function poor, secondly, pneumatic element leaks easily after long-time use wearing and tearing with valve union junction rubber packing ring, lead to the intraductal liquid of valve to flow into in the pneumatic element and make pneumatic element damage, pneumatic element prevents leaking the function poor with valve union handing-over department.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the leakage-proof micro pneumatic ball valve is provided for solving the problems of poor leakage-proof function at the joint of a pipeline and poor leakage-proof function at the joint of a pneumatic element and a valve pipe.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a prevent pneumatic ball valve of microminiature of leakage, includes pneumatic component, adapter sleeve, valve pipe, valve rod and spheroid, the top fixed connection of adapter sleeve and valve pipe is passed through to pneumatic component's bottom, pneumatic component's internally mounted has the valve rod, and the valve rod runs through and extends to the inside of valve pipe, the spheroid is installed to the bottom of valve rod, first packing ring is installed at the inboard top that the outer terminal surface of valve rod is located the adapter sleeve, the second packing ring is installed to the inboard bottom that the outer terminal surface of valve rod is located the adapter sleeve.

As a further description of the above technical solution:

the right side end face of the connecting sleeve is positioned between the first gasket and the second gasket and is communicated with the right side of the top of the valve pipe through a return pipe in a side L-shaped structure.

As a further description of the above technical solution:

the bottom of the horizontal end of the return pipe is communicated with a transparent groove.

As a further description of the above technical solution:

the valve pipe is characterized in that threads are formed in two ends of the inner wall of the valve pipe, a mounting groove is formed in the inner wall of the valve pipe, a vertical fixedly connected baffle is arranged on the inner side of the mounting groove, and a limiting plate is fixedly connected to the side end of the baffle horizontally.

As a further description of the above technical solution:

and a third gasket is arranged at the gap between the limiting plate and the mounting groove, and a groove is formed in the third gasket.

As a further description of the above technical solution:

and a plurality of groups of extrusion springs are arranged between the third gasket and the baffle.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, will be taken over the inside of saying closing to the valve pipe soon through the screw thread by the takeover, make by the takeover say in the sliding embedding to the inner groovy of third packing ring, the shrink of extrusion spring simultaneously, setting through the third packing ring, prevent the leakage of pipeline handing-over department, take place to take off the silk back when being taken over way and valve pipe handing-over department screw thread, make by the takeover say to the valve pipe outside slip, under the effect through extrusion spring, make the third packing ring along being taken over the extrusion of way direction, accomplish the clearance department compensation and damage of taking off the silk production, the problem of valve pipe and being taken over the problem of taking over the silk back leakage of handing-over department is taken off to the pipeline.

2. The utility model discloses in, through set up first packing ring and second packing ring in the adapter sleeve, prevent through the second packing ring that liquid from leaking to adapter sleeve department, after the wearing and tearing of second packing ring leak, liquid flows in the adapter sleeve, prevent through first packing ring in liquid inflow pneumatic element, the liquid that flows in the adapter sleeve simultaneously flows back to valve pipe and transparent groove through the back flow, and simultaneously, whether have liquid to judge whether second packing ring department leaks through transparent groove, overhaul simultaneously and change the second packing ring, through the backflow function of the dual leak protection of first packing ring and second packing ring and back flow, the problem of valve pipe and pneumatic element junction leakage has been solved.

Drawings

Fig. 1 is a schematic structural view illustrating a leak-proof micro pneumatic ball valve according to an embodiment of the present invention;

fig. 2 is a schematic diagram illustrating an internal structure of a valve tube according to an embodiment of the present invention;

fig. 3 shows a schematic diagram of a partial map at a provided in accordance with an embodiment of the present invention.

Illustration of the drawings:

1. a pneumatic element; 2. connecting sleeves; 3. a valve tube; 4. a return pipe; 5. a transparent groove; 6. a first gasket; 7. a second gasket; 8. a sphere; 9. a valve stem; 10. a limiting plate; 11. a compression spring; 12. mounting grooves; 13. a third gasket; 14. and a baffle plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a prevent miniature pneumatic ball valve of leakage, including pneumatic component 1, adapter sleeve 2, valve pipe 3, valve rod 9 and spheroid 8, adapter sleeve 2 and valve pipe 3's top fixed connection are passed through to pneumatic component 1's bottom, pneumatic component 1's internally mounted has valve rod 9, and valve rod 9 runs through and extends to the inside of valve pipe 3, spheroid 8 is installed to valve rod 9's bottom, first packing ring 6 is installed at the inboard top that the outer terminal surface of valve rod 9 is located adapter sleeve 2, second packing ring 7 is installed to the inboard bottom that the outer terminal surface of valve rod 9 is located adapter sleeve 2, through the setting of second packing ring 7, prevent that the liquid in the valve pipe 3 from flowing into adapter sleeve 2, simultaneously through the first packing ring 6 that sets up in the adapter sleeve 2, prevent behind the wearing and tearing of second packing ring 7, prevent that the rivers in the adapter sleeve 2 from flowing into.

Specifically, as shown in fig. 1 and 2, the right end face of the connecting sleeve 2 is located between the first gasket 6 and the second gasket 7 and is communicated with the top right side of the valve pipe 3 through the return pipe 4 in a side L-shaped structure, the bottom of the horizontal end of the return pipe 4 is communicated with the transparent groove 5, the liquid flowing into the connecting sleeve 2 is guided into the valve pipe 3 through the return pipe 4, and whether the second gasket 7 leaks or not can be judged through the arrangement of the transparent groove 5 and whether the liquid exists in the transparent groove 5 or not.

Specifically, as shown in fig. 2 and 3, both ends of the inner wall of the valve tube 3 are threaded, the inner wall of the valve tube 3 is provided with a mounting groove 12, the inner side of the mounting groove 12 is vertically and fixedly connected with a baffle 14, the side end surface of the baffle 14 is horizontally and fixedly connected with a limiting plate 10, a gap between the limiting plate 10 and the mounting groove 12 is provided with a third gasket 13, a groove is formed in the third gasket 13, a plurality of groups of extrusion springs 11 are arranged between the third gasket 13 and the baffle 14, the connected pipeline is screwed to the inner side of the valve tube 3 through threads, so that the connected pipeline is slidably embedded into an inner groove of the third gasket 13, the third gasket 13 prevents leakage at the joint of the connected pipeline and the valve tube 3, and when the threads at the joint of the connected pipeline and the valve tube 3 are disconnected, the connected pipeline slides outwards, and the third gasket 13 simultaneously slides outwards under the action of the extrusion springs 11, and repairing the gap after the filament is removed, so as to prevent the leakage of the gap after the filament is removed.

The working principle is as follows: when the pneumatic valve is used, the connected pipeline is screwed into the valve pipe 3 through the threads, the connected pipeline is slidably embedded into the inner groove of the third gasket 13, meanwhile, the leakage at the joint of the connected pipeline and the valve pipe 3 is prevented through the third gasket 13, meanwhile, when the threads at the joint of the connected pipeline and the valve pipe 3 are stripped, the connected pipeline slides outwards, meanwhile, the third gasket 13 slides outwards under the action of the extrusion spring 11, the gap after the stripping is repaired, the leakage at the gap after the stripping is prevented, when the pneumatic valve is used, the leakage in the connecting sleeve 2 of the valve pipe 3 box is prevented through the second gasket 7, when the second gasket 7 is worn and leaked, the liquid flowing into the connecting sleeve 2 is blocked through the first gasket 6, the liquid in the connecting sleeve 2 is prevented from flowing into the pneumatic element 1, and the liquid flowing into the connecting sleeve 2 is returned into the valve pipe 3 through the arrangement of the return pipe 4, meanwhile, a part of the liquid flows into the transparent groove 5, and whether the second gasket 7 leaks is detected by whether the liquid exists in the transparent groove 5.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides a prevent pneumatic ball valve of microminiature of leakage, includes pneumatic element (1), adapter sleeve (2), valve pipe (3), valve rod (9) and spheroid (8), its characterized in that, the top fixed connection of adapter sleeve (2) and valve pipe (3) is passed through to the bottom of pneumatic element (1), the internally mounted of pneumatic element (1) has valve rod (9), and valve rod (9) run through and extend to the inside of valve pipe (3), spheroid (8) are installed to the bottom of valve rod (9), first packing ring (6) are installed at the inboard top that the outer terminal surface of valve rod (9) is located adapter sleeve (2), second packing ring (7) are installed to the inboard bottom that the outer terminal surface of valve rod (9) is located adapter sleeve (2).

2. A leak-proof microminiature pneumatic ball valve as claimed in claim 1, wherein the right side end face of the connection sleeve (2) is located between the first gasket (6) and the second gasket (7) and is communicated with the top right side of the valve tube (3) through the return pipe (4) in a side L-shaped structure.

3. A leak-proof microminiature pneumatic ball valve as claimed in claim 2, wherein the bottom of the horizontal end of said return pipe (4) is connected with a transparent groove (5).

4. A leak-proof micro pneumatic ball valve as claimed in claim 1, wherein both ends of the inner wall of the valve tube (3) are threaded, the inner wall of the valve tube (3) is provided with an installation groove (12), the inner side of the installation groove (12) is vertically and fixedly connected with a baffle (14), and the side end surface of the baffle (14) is horizontally and fixedly connected with a limiting plate (10).

5. A leak-proof microminiature pneumatic ball valve as claimed in claim 4, wherein a third gasket (13) is provided at the gap between said position-limiting plate (10) and said mounting groove (12), and a groove is provided inside said third gasket (13).

6. A leak-proof microminiature pneumatic ball valve as claimed in claim 5, wherein a plurality of sets of compression springs (11) are disposed between said third gasket (13) and said baffle (14).

Images