Pneumatic ball valve

Abstract

The utility model discloses a pneumatic ball valve which comprises a valve body and a pneumatic executing mechanism installed on the valve body, flange plates are arranged at the two ends of the valve body, telescopic protective covers are arranged outside the flange plates in a sleeved mode, a connecting plate is fixed to one end of each telescopic protective cover, an end ring is fixed to the other end of each telescopic protective cover, a surrounding ring is connected to the outer portion of each end ring, and the surrounding ring is connected with the valve body. A containing bin is formed between the surrounding ring and the telescopic protective cover, a connecting ring is fixed to the outer wall of the valve body, and the connecting ring is in threaded connection with the connecting disc. The telescopic protective cover arranged on the valve body can cover the outer portion of the flange connecting position of the ball valve and a pipeline when extending, so that the flange connecting position is protected, erosion of the external environment to the connecting position is reduced, safety and stability of the connecting position are improved, and the service life of the connecting position is prolonged. And the valve body can be hidden in the surrounding ring, so that operations such as disassembly and maintenance of the valve body and the pipeline are not influenced, and the use is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field especially a kind of pneumatic ball valve. BACKGROUND

[0002] Pneumatic ball valve is a kind of valve, which is driven by compressed air to rotate the ball in the valve body, thereby realizing the opening or closing of pipeline, suitable for direct use as opening and closing, with compact structure, easy to operate and maintain suitable for water, solvent, acid and natural gas and other general working medium.

[0003] The existing pneumatic ball valve is generally connected with pipeline through flange plate, and when the pneumatic ball valve is installed for outdoor use, the flange connection between the ball valve and the pipeline is directly exposed, which is difficult to protect, and after long-term wind blowing, sun exposure and rain erosion, the service life of the sealing gasket at the connection is greatly reduced, and leakage problem is prone to occur, thereby affecting the safety of pipeline transmission.

[0004] Therefore, we propose a kind of pneumatic ball valve to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of pneumatic ball valve to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of pneumatic ball valve, including valve body and the pneumatic actuator of installation on valve body, the both ends of the valve body are equipped with flange plate, and flange plate is equipped with telescopic protective cover, one end of the telescopic protective cover is fixed with connecting disc, and the other end of telescopic protective cover is fixed with end ring, the end ring is connected with surrounding ring outside, and the storage bin is formed between surrounding ring and telescopic protective cover, the outer wall of the valve body is fixed with connecting ring, and connecting ring is screwed with connecting disc.

[0008] In further embodiments, the periphery of the telescopic protective cover is provided with a spring, and the two ends of the spring are fixed with the connecting disc and the end ring respectively.

[0009] In further embodiments, the minimum inner diameter of the telescopic protective cover is greater than the outer diameter of the flange plate.

[0010] In further embodiments, the opposite surfaces of the surrounding ring and the connecting disc are each provided with a plurality of magnetic blocks, the plurality of magnetic blocks are uniformly distributed along the circumferential direction of the surrounding ring and the connecting disc, and the magnetic blocks on the surrounding ring and the magnetic blocks on the connecting disc are magnetically connected.

[0011] In further embodiments, the inner edges of the end ring and the connecting disc are each provided with a convex edge.

[0012] In further embodiments, the outer diameter of the surrounding ring is less than the maximum outer diameter of the connecting disc.

[0013] In further embodiments, the connecting disc adopts a stepped structure on the side.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The utility model discloses a valve body on the telescopic protective cover can be covered in the flange connecting place outside of ball valve and pipeline when elongation, and then the flange connecting place is protected, reduces the erosion of external environment to the connecting place, improves the safety stability of connecting place, is favorable to prolong its service life, and the telescopic protective cover can hide in the surrounding ring when shortening, does not influence the dismounting and overhaul etc. Operation of valve body and pipeline, and it is more convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is structure schematic view of the utility model;

[0017] Figure 2 It is structure schematic view of the utility model after removing telescopic protective cover;

[0018] Figure 3 It is structure schematic view of the utility model when the telescopic protective cover elongation and valve body connection local section;

[0019] Figure 4 It is structure schematic view of the utility model when the telescopic protective cover shortening and valve body connection local section.

[0020] In the drawing: 1, valve body;2, pneumatic actuator;3, flange plate;4, telescopic protective cover;5, connecting disc;6, connecting ring;7, end ring;8, surrounding ring;9, storage bin;10, spring;11, magnetic block;12, convex edge. DETAILED DESCRIPTION

[0021] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0022] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "installation", "connection", "connection" should be understood broadly, for example, it can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned term in the utility model can be understood through specific circumstances.

[0023] The technical scheme in the embodiments of the utility model will be apparently and completely described below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0024] Please refer to Figures 1-3 A kind of pneumatic ball valve, including valve body 1 and installation on valve body 1 pneumatic actuator 2, both ends of valve body 1 are equipped with flange plate 3, flange plate 3 is used to connect with pipeline, and flange plate 3 is equipped with telescopic protective cover 4, telescopic protective cover 4 is bellows telescopic pipe, the minimum inner diameter of telescopic protective cover 4 is greater than the outer diameter of flange plate 3, so that telescopic protective cover 4 is not hindered when telescoping by flange plate 3, one end of this telescopic protective cover 4 is fixed with connecting disc 5, connecting ring 6 is fixed on the outer wall of valve body 1, and connecting ring 6 is threadedly connected with connecting disc 5, connecting disc 5 adopts side and uses stepped structure, is buckled on the outside of connecting ring 6, it is convenient to split between the two, the other end of telescopic protective cover 4 is fixed with end ring 7, and the side close to connecting disc 5 of end ring 7 is connected with surrounding ring 8, and the inner diameter of surrounding ring 8 is greater than the maximum outer diameter of telescopic protective cover 4, so that the storage bin 9 is formed between surrounding ring 8 and telescopic protective cover 4, when telescopic protective cover 4 folds and shrinks, it can be stored in storage bin 9.

[0025] Please refer to Figures 3-4 In order to improve the protection strength of telescopic protective cover 4, the periphery of telescopic protective cover 4 is provided with spring 10, and the two ends of spring 10 are fixed with connecting disc 5 and end ring 7 respectively, and spring 10 improves the supporting effect of telescopic protective cover 4, so that it is not easy to collapse and deform in the use process.

[0026] Please refer to Figure 4 The inner edge of end ring 7 and connecting disc 5 is all equipped with a ring of convex edge 12, and the convex edge 12 is formed with the inner side wall of end ring 7 and connecting disc 5 at right angles, so that when falling rain, rain is not easy to flow along the inner wall of end ring 7 and connecting disc 5, to reduce the erosion of connecting place.

[0027] Please refer toFigure 4 In order to facilitate the disassembly operation between the pipe and the valve body 1, the opposite surfaces of the surrounding ring 8 and the connecting disc 5 are provided with a plurality of magnetic blocks 11, the plurality of magnetic blocks 11 are uniformly distributed along the circumferences of the surrounding ring 8 and the connecting disc 5, and the magnetic blocks 11 on the surrounding ring 8 and the magnetic blocks 11 on the connecting disc 5 are magnetically connected, so that when the surrounding ring 8 and the connecting disc 5 are close to each other, the magnetic blocks 11 on the side surfaces of the two are one-to-one corresponding and magnetically connected, thereby the surrounding ring 8 is attracted to the side of the connecting disc 5 and is limited, at this time, the telescopic protective cover 4 and the spring 10 are compressed in the storage bin 9, so that they are not easy to be scattered, and when the surrounding ring 8 and the connecting disc 5 are close to each other, the surrounding ring 8 and the end ring 7 are away from the flange plate 3, thereby facilitating the worker to operate the bolts and nuts on the flange plate 3 to be connected or disassembled.

[0028] Further, in order to facilitate the separation between the surrounding ring 8 and the connecting disc 5, the outer diameter of the surrounding ring 8 is smaller than the maximum outer diameter of the connecting disc 5, so that the outer edge of the surrounding ring 8 protrudes from the outer edge of the connecting disc 5, so as to facilitate the protruding part to pry open the surrounding ring 8.

[0029] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalents of the elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be considered as limiting the claims involved.

[0030] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A pneumatic ball valve comprising a valve body (1) and a pneumatic actuator (2) mounted on the valve body (1), characterized in that: Both ends of the valve body (1) are provided with flange plates (3), and the flange plates (3) are provided with telescopic protective covers (4), one end of the telescopic protective cover (4) is fixed with a connecting disc (5), and the other end of the telescopic protective cover (4) is fixed with an end ring (7), the end ring (7) is connected with a surrounding ring (8), and the surrounding ring (8) and the telescopic protective cover (4) form a storage bin (9), the outer wall of the valve body (1) is fixed with a connecting ring (6), and the connecting ring (6) and the connecting disc (5) are screwed.

2. A pneumatic ball valve according to claim 1, characterized in that: The periphery of the telescopic protective cover (4) is provided with a spring (10), and the two ends of the spring (10) are fixed with the connecting disc (5) and the end ring (7) respectively.

3. A pneumatic ball valve according to claim 1, characterized in that: The minimum inner diameter of the telescopic protective cover (4) is greater than the outer diameter of the flange plate (3).

4. A pneumatic ball valve according to claim 1, characterized in that: The opposite surfaces of the surrounding ring (8) and the connecting disc (5) are provided with a plurality of magnetic blocks (11), the plurality of magnetic blocks (11) are uniformly distributed along the circumferential direction of the surrounding ring (8) and the connecting disc (5), and the magnetic blocks (11) on the surrounding ring (8) and the magnetic blocks (11) on the connecting disc (5) are magnetically connected.

5. A pneumatic ball valve according to claim 1, characterized in that: The inner edges of the end ring (7) and the connecting disc (5) are each provided with a row of convex edges (12).

6. A pneumatic ball valve according to claim 1, characterized in that: The outer diameter of the surrounding ring (8) is less than the maximum outer diameter of the connecting disc (5).

7. A pneumatic ball valve according to claim 1, characterized in that: The connecting disc (5) adopts a stepped structure on the side.

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