Limiting structure of air supply ball valve of movable air compressor

Abstract

The limiting structure of the air supply ball valve of the movable air compressor comprises a ball valve body and a limiting plate, one end of the ball valve body is provided with a first connector, and the first connector is in threaded connection with an air outlet of the movable air compressor; the other end of the ball valve body is provided with a second connector used for being in threaded connection with an air supply hose, and a limiting protrusion is arranged on the peripheral face of the second connector. A limiting hole matched with the limiting protrusion is formed in one end of the limiting plate, the limiting protrusion is inserted into the limiting hole, and the other end of the limiting plate is connected with the movable air compressor in a fastened mode. The limiting plate is matched with the limiting protrusion to limit the ball valve body, the ball valve body can be prevented from rotating when the air supply hose is disassembled, the failure risk of the ball valve is reduced, the structure is simple, and disassembly and assembly are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to air compressor spare and accessory technology field, concretely relates to a kind of limit structure of mobile air compressor gas supply ball valve. BACKGROUND

[0002] Currently, the gas supply ball valve of mobile air compressor mostly adopts two-piece ball valve, as shown in Figure, the valve body of two-piece ball valve includes main valve body 1 and vice valve body 2 two parts, vice valve body 2 is generally connected with main valve body 1 by thread. Since the two ends of gas supply ball valve need to be connected with the air outlet of mobile air compressor and the gas supply hose of user gas equipment respectively, and the connection mode is generally also thread connection, when user needs to disassemble gas supply hose after completing gas supply work, it can cause one part of ball valve or the whole ball valve to be unscrewed together, leading to the early failure of sealing element in the middle of ball valve, due to the over-tight connection of gas supply hose and ball valve. Figure 1 SUMMARY

[0003] Therefore, the embodiment of the utility model provides a kind of limit structure of mobile air compressor gas supply ball valve to solve the technical problem that mobile air compressor gas supply ball valve is easily unscrewed together when disassembling gas supply hose.

[0004] The utility model embodiment provides a kind of limit structure of mobile air compressor gas supply ball valve, comprising:

[0005] Ball valve body, one end of the ball valve body is equipped with first connecting head, and the first connecting head is connected with the air outlet of mobile air compressor by thread;The other end of the ball valve body is equipped with the second connecting head for being connected with gas supply hose by thread, and the outer circumferential surface of the second connecting head is equipped with limiting protrusion;

[0006] Limiting plate, one end of the limiting plate is equipped with limiting hole matched with the limiting protrusion, and the limiting protrusion is inserted into the limiting hole, and the other end of the limiting plate is tightly connected with mobile air compressor.

[0007] Optionally, the outer circumferential surface of the second connecting head is regular polygon structure, and the limiting hole of regular polygon matched with it is correspondingly arranged in one end of the limiting plate.

[0008] Optionally, the first connecting head and the second connecting head are integrally formed with the ball valve body.

[0009] Optionally, the first connecting head is connected with the ball valve body by thread, and / or the second connecting head is connected with the ball valve body by thread.

[0010] ​The embodiment of the utility model has the following beneficial effects: the limiting protrusions are arranged on the outer circumferential surface of the connecting head of the ball valve body, the limiting plate cooperates with the limiting protrusions to limit the ball valve body, thereby avoiding rotation of the ball valve body when the gas supply hose is disassembled, effectively reducing the risk of ball valve failure, and the structure is simple and convenient to disassemble and assemble. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0012] Figure 1 It is a structural schematic diagram of a conventional two-piece ball valve.

[0013] Figure 2 It is a structural schematic diagram of the embodiment of the utility model in the assembled state.

[0014] Figure 3 It is a structural schematic diagram of the embodiment of the utility model in the disassembled state.

[0015] The numbers in the drawing represent:

[0016] 1, main valve body;2, auxiliary valve body;

[0017] 3, ball valve body;31, first connecting head;32, second connecting head;

[0018] 4, limiting plate;41, limiting hole;

[0019] 5, mobile air compressor. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiment of the utility model will be described clearly and completely in combination with the drawings in the embodiment of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] Please refer to Figure 2 、 Figure 3 The embodiment of the utility model provides a limiting structure of a mobile air compressor gas supply ball valve, which comprises a ball valve body 3 and a limiting plate 4. The ball valve body 3 is provided with a first connecting head 31 and a second connecting head 32 at both ends, wherein the first connecting head 31 is threadedly connected with the gas outlet of the mobile air compressor 5, and the second connecting head 32 is used for threadedly connecting with the gas supply hose of the user gas equipment.

[0022] The outer circumferential surface of the second connecting head 32 is provided with a limiting protrusion, and one end of the limiting plate 4 is correspondingly provided with a limiting hole 41 matched with the limiting protrusion, so that the limiting protrusion can be inserted into the limiting hole 41, and the limiting plate 4 is limited in cooperation with the limiting protrusion. One end of the limiting plate 4 is sleeved on the limiting protrusion through the limiting hole 41, and the other end of the limiting plate 4 is fastened and connected with the mobile air compressor 5 by a bolt or the like. The ball valve body 3 is limited by the limiting plate 4 cooperating with the limiting protrusion, which can avoid the rotation of the ball valve body 3 when the gas supply hose is disassembled, thereby effectively reducing the risk of ball valve failure, and the structure is simple and convenient to disassemble.

[0023] In order to facilitate stress, the outer circumferential surface of the second connecting head 32 is usually a regular polygonal structure (mostly hexagonal structure or octagonal structure), so the convex corner on the outer circumferential surface thereof can be directly used as the limiting protrusion, and a regular polygonal limiting hole 41 matched with the outer circumferential surface of the second connecting head 32 is correspondingly provided at one end of the limiting plate 4, so as to effectively limit the outer circumferential surface of the second connecting head 32.

[0024] It can be understood that the above limiting structure is applicable to a variety of structures of the gas supply ball valve such as a one-piece ball valve, a two-piece ball valve, a three-piece ball valve and the like which are threadedly connected with the mobile air compressor 5. When the gas supply ball valve is a one-piece ball valve (i.e., the first connecting head 31 and the second connecting head 32 are integrally formed with the ball valve body 3), the limiting plate 4 can limit the rotation of the entire ball valve, thereby avoiding the loosening of the connection between the ball valve and the mobile air compressor 5. When the gas supply ball valve is a two-piece ball valve (i.e., any one of the first connecting head 31 and the second connecting head 32 is threadedly connected with the ball valve body 3) or a three-piece ball valve (i.e., the first connecting head 31 and the second connecting head 32 are threadedly connected with the ball valve body 3), the limiting plate 4 can also limit the relative rotation between the threadedly connected connecting head and the ball valve body 3, thereby avoiding the premature failure of the sealing element in the ball valve.

[0025] In the present document, specific examples are applied to explain the principles and implementation modes of the present application, and the above examples are only used to help understand the technical solutions and core ideas of the present application; those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A stop structure of a ball valve for a mobile air compressor, characterized by, The utility model relates to a ball valve for mobile air compressor, which comprises: a ball valve body, one end of the ball valve body is provided with a first connecting head, the first connecting head is threadedly connected with a gas outlet of a mobile air compressor; the other end of the ball valve body is provided with a second connecting head for threadedly connecting with a gas supply hose, and the outer circumferential surface of the second connecting head is provided with a limiting protrusion; a limiting plate, one end of the limiting plate is provided with a limiting hole matched with the limiting protrusion, the limiting protrusion is inserted into the limiting hole, and the other end of the limiting plate is tightly connected with the mobile air compressor.

2. The limit structure of the ball valve for the air supply of the mobile air compressor according to claim 1, characterized in that: The outer circumferential surface of the second connecting head is in a regular polygonal structure, and the limiting hole of one end of the limiting plate is correspondingly provided with a regular polygonal structure matched therewith.

3. The limit structure of a ball valve for a mobile air compressor according to any one of claims 1 or 2, characterized in that: The first connecting head and the second connecting head are integrally formed with the ball valve body.

4. The limit structure of the ball valve of the mobile air compressor according to any one of claims 1 or 2, characterized in that: The first connecting head is threadedly connected with the ball valve body, and / or the second connecting head is threadedly connected with the ball valve body.

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