Plane installation type pneumatic stop valve

Abstract

The utility model relates to the technical field of pneumatic stop valves, and provides a plane installation type pneumatic stop valve which comprises a plane installation type valve body, a transition piece, a valve rod, a valve element, a piston rod, an air cylinder shell, an air cylinder push block and a spring. The air cylinder push block is arranged in the air cylinder in a sliding mode and fixedly connected with one end of the piston rod, the other end of the piston rod is connected with the valve element through the valve rod, the valve element is used in cooperation with an inlet formed in the plane installation type valve body, the piston rod is sleeved with the spring, one end of the spring is fixedly connected with the piston rod, and the other end of the spring is fixedly connected with the air cylinder shell. The utility model has reasonable structure, is convenient to use, and is convenient for centralized installation on the pipeline plane.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic shut-off valve technology, and in particular to a planar-mounted pneumatic shut-off valve. Background Technology

[0002] A pneumatic shut-off valve is a device that controls the opening and closing of a valve using a pneumatic mechanism. It is widely used in pipeline systems to control the opening and closing of fluids or to regulate the flow rate.

[0003] As disclosed in application number CN201810281572.X, a pneumatic shut-off valve includes a valve body, valve disc, sealing ring, valve cover, bolts, packing, gland, gland bolts, gland nut, valve stem, actuator, lifting lug, and valve position indicator. The actuator is located at the top of the shut-off valve, the valve position indicator is located above the actuator, the lifting lug is located on the actuator, the valve stem is connected to the lower part of the actuator, the lower part of the actuator has a hook hole, the gland has a hook connected to it and located in the hook hole, the gland is located on the upper part of the valve cover by gland bolts and gland nut, the packing is located inside the gland, the valve cover is connected to the valve body by bolts, the valve disc is located inside the valve body, and the sealing ring is located between the valve cover and the valve body.

[0004] However, existing pipelines require the installation and use of pneumatic shut-off valves, so there is an urgent need to design a planar-mounted pneumatic shut-off valve. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a planar-mounted pneumatic shut-off valve.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A planar-mounted pneumatic shut-off valve includes: a planar-mounted valve body, a transition piece, a valve stem, a valve core, a piston rod, a cylinder housing, a cylinder push block, and a spring. The transition piece is fixedly mounted on the planar-mounted valve body, and the cylinder housing is fixedly mounted on the transition piece. The cylinder push block is slidably disposed within the cylinder and is fixedly connected to one end of the piston rod. The other end of the piston rod is connected to the valve core via the valve stem. The valve core cooperates with an inlet disposed on the planar-mounted valve body. The spring is fitted onto the piston rod, with one end of the spring fixedly connected to the piston rod and the other end of the spring fixedly connected to the cylinder housing.

[0008] Preferably, the planar-mounted valve body is provided with an inlet, an outlet, a mounting hole, and a pin hole. The mounting hole and pin hole are located on both sides of the planar-mounted valve body, and the inlet and outlet are located in the middle of the planar-mounted valve body. The inlet is used in conjunction with the valve core, and the inlet and outlet are used in conjunction with the transition piece.

[0009] Preferably, O-rings are provided on the outer rings of the inlet and outlet.

[0010] Preferably, a venting groove is provided on the lower side of the transition member, and the venting groove covers the inlet and outlet.

[0011] Preferably, a first sealing ring is provided on the outer side of the venting groove.

[0012] Preferably, a sliding sealing assembly is provided on the outer side of the valve stem. The sliding sealing assembly includes a sliding sleeve, a second sealing ring, and a third sealing ring. The second and third sealing rings are fitted on the outer side of the valve stem and are slidably disposed within the sliding sleeve. The sliding sleeve is fixedly connected to the transition piece.

[0013] The advantages of this utility model are: the utility model has a reasonable structure and is easy to use. By setting up a flat-mounted valve body, transition piece, valve stem, valve core, piston rod, cylinder housing, cylinder push block and spring, it is easy to install in a central position on the pipeline plane. By setting up a valve core, it can cooperate with the flat-mounted valve body to cut off the fluid. By setting up a piston rod, it can control the opening and closing of the valve core. By setting up a spring, it can keep the valve core in a normally closed state. Attached Figure Description

[0014] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is a schematic diagram of the valve stem and valve core of this utility model;

[0018] Figure 4 This is a schematic diagram of the planar-mounted valve body of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the transition component of this utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the sliding sealing assembly of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Flat-mounted valve body; 2. Transition piece; 3. Valve stem; 4. Valve core; 5. Piston rod; 6. Cylinder housing; 7. Cylinder push block; 8. Spring; 11. Inlet; 12. Outlet; 13. Mounting hole; 14. Pin hole; 21. Vent groove; 22. First sealing ring; 31. Sliding sealing assembly; 311. Sliding sleeve; 312. Second sealing ring; 313. Third sealing ring. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example 1, combined with Figure 1 , Figure 2 and Figure 3 Explanation:

[0027] A planar-mounted pneumatic shut-off valve includes: a planar-mounted valve body 1, a transition piece 2, a valve stem 3, a valve core 4, a piston rod 5, a cylinder housing 6, a cylinder pusher block 7, and a spring 8. The transition piece 2 is fixedly mounted on the planar-mounted valve body 1, and the cylinder housing 6 is fixedly mounted on the transition piece 2. The cylinder pusher block 7 is slidably disposed within the cylinder 6. The cylinder pusher block 7 is fixedly connected to one end of the piston rod 5, and the other end of the piston rod 5 is connected to the valve core 4 through the valve stem 3. The valve core 4 is used in conjunction with an inlet 11 disposed on the planar-mounted valve body 1. The spring 7 is fitted onto the piston rod 5, with one end of the spring 7 fixedly connected to the piston rod 5 and the other end of the spring 7 fixedly connected to the cylinder housing 6.

[0028] By setting up a flat-mounted valve body 1, transition piece 2, valve stem 3, valve core 4, piston rod 5, cylinder housing 6, cylinder push block 7, and spring 8, it is easy to install centrally on the pipeline plane. The valve core 4 can cooperate with the flat-mounted valve body 1 to cut off the fluid. The piston rod 5 can control the opening and closing of the valve core 4. The spring 8 can keep the valve core in a normally closed state.

[0029] Example 2, based on Example 1, combined with... Figure 4 Explanation:

[0030] The planar-mounted valve body 1 is provided with an inlet 11, an outlet 12, a mounting hole 13, and a pin hole 14. The mounting hole 13 and the pin hole 14 are located on both sides of the planar-mounted valve body 1, and the inlet 11 and the outlet 12 are located in the middle of the planar-mounted valve body 1. The inlet 11 is used in conjunction with the valve core 4, and the inlet 11 and the outlet 12 are used in conjunction with the transition piece 2.

[0031] This configuration facilitates the fixed connection of the flat-mounted valve body 1 by providing mounting holes 13 and pin holes 14.

[0032] O-rings are provided on the outer rings of both inlet 11 and outlet 12. This design improves the sealing performance at the connection between inlet 11 and outlet 12.

[0033] Example 3, based on Example 2, combined with Figure 5 Explanation:

[0034] A venting groove 21 is provided on the lower side of the transition member 2, covering the inlet 11 and the outlet 12. This arrangement facilitates communication between the inlet 11 and the outlet 12.

[0035] A first sealing ring 22 is provided on the outer side of the venting groove 21. This arrangement improves the sealing performance and prevents leakage.

[0036] Example 4, based on Example 3, combined with Figure 6 Explanation:

[0037] A sliding sealing assembly 31 is provided on the outside of the valve stem 3. The sliding sealing assembly 31 includes a sliding sleeve 311, a second sealing ring 312, and a third sealing ring 313. The second sealing ring 312 and the third sealing ring 313 are fitted on the outside of the valve stem 3. The second sealing ring 312 and the third sealing ring 313 are slidably disposed in the sliding sleeve 311. The sliding sleeve 311 is fixedly connected to the transition member 2.

[0038] The second sealing ring 312 and the third sealing ring 313 provide a dynamic seal as the valve stem moves, preventing fluid leakage. Since the second sealing ring 312 and the third sealing ring 313 are slidably connected to the sliding sleeve 311, the addition of the sliding sleeve 311 facilitates maintenance and replacement.

[0039] The working principle of this utility model is as follows: When this device is in use, the external air source drives the cylinder pusher block 7 to move upward. The cylinder pusher block 7 drives the valve core 4 and valve stem 5 to move upward through the piston rod 5. At this time, the spring 8 is compressed, and the valve core 4 separates from the inlet 11. At this time, the shut-off valve opens, and the fluid can flow in from the inlet 11 and flow out from the outlet 12 through the vent groove 21. When it is necessary to close the shut-off valve, the external air source stops input, the compressed spring 8 resets, and drives the valve core 4 to move downward, so that the valve core 4 abuts against the inlet 11, completing the closure of the valve body. This utility model has a reasonable structure, is easy to use, and is convenient for centralized installation on the pipeline plane.

[0040] For those skilled in the art, this utility model is not limited to the details of the exemplary embodiments described above, and can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model; therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present utility model should be included within the protection scope of the technical solution of the present utility model.

Claims

1. A planar-mounted pneumatic shut-off valve, characterized in that, include: The valve body (1), transition piece (2), valve stem (3), valve core (4), piston rod (5), cylinder housing (6), cylinder push block (7) and spring (8) are mounted on a flat surface. The transition piece (2) is fixedly mounted on the flat surface valve body (1), the cylinder housing (6) is fixedly mounted on the transition piece (2), the cylinder push block (7) is slidably disposed in the cylinder housing (6), the cylinder push block (7) is fixedly connected to one end of the piston rod (5), the other end of the piston rod (5) is connected to the valve core (4) through the valve stem (3), the valve core (4) is used in conjunction with the inlet (11) disposed on the flat surface valve body (1), and the spring (8) is fitted on the piston rod (5). One end of the spring (8) is fixedly connected to the piston rod (5), and the other end of the spring (8) is fixedly connected to the cylinder housing (6).

2. The planar-mounted pneumatic shut-off valve according to claim 1, characterized in that, The planar-mounted valve body (1) is provided with an inlet (11), an outlet (12), a mounting hole (13), and a pin hole (14). The mounting hole (13) and the pin hole (14) are located on both sides of the planar-mounted valve body (1), and the inlet (11) and the outlet (12) are located in the middle of the planar-mounted valve body (1). The inlet (11) is used in conjunction with the valve core (4), and the inlet (11) and the outlet (12) are used in conjunction with the transition piece (2).

3. A planar-mounted pneumatic shut-off valve according to claim 2, characterized in that, The outer rings of the inlet (11) and outlet (12) are equipped with O-ring seals.

4. A planar-mounted pneumatic shut-off valve according to claim 2, characterized in that, The transition piece (2) is provided with a ventilation groove (21) on its lower side, which covers the inlet (11) and the outlet (12).

5. A planar-mounted pneumatic shut-off valve according to claim 4, characterized in that, A first sealing ring (22) is provided on the outside of the ventilation groove (21).

6. A planar-mounted pneumatic shut-off valve according to claim 1, characterized in that, A sliding sealing assembly (31) is provided on the outside of the valve stem (3). The sliding sealing assembly (31) includes: a sliding sleeve (311), a second sealing ring (312), and a third sealing ring (313). The second sealing ring (312) and the third sealing ring (313) are fitted on the outside of the valve stem (3). The second sealing ring (312) and the third sealing ring (313) are slidably disposed in the sliding sleeve (311). The sliding sleeve (311) is fixedly connected to the transition piece (2).

Images