CN212509620U

CN212509620U - One-piece ball valve

Info

Publication number: CN212509620U
Application number: CN202021092344.7U
Authority: CN
Inventors: 吕鹤; 陈志伟; 郭建侠
Original assignee: Hohhot Mengwa Valve Industry Co ltd
Current assignee: Hohhot Mengwa Valve Industry Co ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-02-09
Anticipated expiration: 2030-06-12

Abstract

The utility model belongs to the technical field of the valve pipe fitting, concretely relates to a piece formula ball valve, including the valve body, valve body internally mounted has spherical case, and the case top is connected with the valve rod of operation case pivoted, valve body one end is for the installing port of the case of packing into, and threaded fit has gland nut in the installing port, is provided with left gasket between gland nut and the case, set up the limbers in the middle of the gland nut, the limbers sets up annular mounting groove in the inner, and the mounting groove inner wall sets up spacing lug, and left gasket back card is established on spacing lug. The utility model provides a one-piece ball valve sets up limit structure on the nut for the cooperation nature of gasket is better, improves assembly efficiency.

Description

One-piece ball valve

Technical Field

The utility model belongs to the technical field of the valve pipe fitting, concretely relates to a piece formula ball valve.

Background

The one-piece ball valve has a valve body of a single casting structure, a valve core enters from one end of the valve body, and the valve core is blocked by a nut. In order to ensure sealing, gaskets which play a role in sealing are usually arranged at two ends of the valve core, and the gaskets at the outer end of the valve core are screwed into the valve body along with the compression nut; however, in the process of pressing the valve element, misalignment is likely to occur with rotation of the nut, which leads to a reduction in assembly efficiency or a problem in sealing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a one-piece ball valve sets up limit structure on the nut for the cooperation nature of gasket is better, improves assembly efficiency.

The purpose of the utility model is realized like this: the utility model provides a one-piece ball valve, includes the valve body, and valve body internally mounted has spherical case, and the case top is connected with the control case pivoted valve rod, the installing port of valve body one end for the case of packing into, threaded fit has gland nut in the installing port, is provided with left gasket between gland nut and the case, set up the limbers in the middle of the gland nut, the limbers sets up annular mounting groove in the inner, and the mounting groove inner wall sets up spacing lug, and left gasket back card is established on spacing lug.

Furthermore, a conical surface is arranged between the mounting hole and the mounting cavity for placing the valve core, a shoulder is arranged on the outer side of the inner end of the compression nut, and a sealing ring is compressed between the conical surface and the shoulder.

Furthermore, the outer end of the compression nut is provided with a hexagonal sinking groove.

Furthermore, the other end of the valve core is matched with a right gasket, and the right gasket is abutted against the valve body.

Furthermore, the water through hole of the compression nut is coaxial with the water through hole of the valve body and the diameter of the water through hole is consistent.

Compared with the prior art, the utility model outstanding and profitable technological effect is: the back of the left gasket is clamped on the limiting convex block and is not easy to separate from the mounting groove in the mounting process; the compression nut is not easy to shift in the screwing process, and the assembly efficiency is improved.

Drawings

Fig. 1 is a schematic view of an overall structure of a one-piece ball valve according to an embodiment of the present invention;

FIG. 2 is a schematic view of an inner end surface of a nut in an embodiment of the present invention;

fig. 3 is a schematic view of an outer end surface of the nut in the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a valve body in an embodiment of the present invention.

Reference numerals: 1. a valve body; 1a, an installation port; 1b, mounting a cavity; 1c, water through holes; 1d, a conical surface; 2. a valve core; 3. a valve stem; 4. a nut; 4a, a limiting bump; 4b, hexagonal sinking grooves; 4c, a shoulder; 4d, mounting grooves; 4e, a water through hole; 5. a left gasket; 6. a right gasket; 7. and (5) sealing rings.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings.

The utility model provides a one-piece ball valve, as shown in figure 1, including valve body 1, 1 internally mounted of valve body has

spherical case

2, 2 tops of case are connected with the valve rod 3 of controlling case 2 pivoted, 1 one end of valve body is for the installing port 1a of case 2 of packing into, installing port 1a internal screw-thread fit has gland nut 4, be provided with left gasket 5 between gland nut 4 and the case 2, set up limbers 4e in the middle of the gland nut 4, case 2 has right gasket 6 in the other end cooperation, right gasket 6 supports and leans on valve body 1. Referring to fig. 2, the inner end of the water passage hole 4e is provided with an annular mounting groove 4d, the inner wall of the mounting groove 4d is provided with a limit bump 4a, and the back of the left gasket 5 is clamped on the limit bump 4 a. Wherein, spacing lug 4a height should be less than left gasket 5 thickness to guarantee sealed, the bayonet socket width at spacing lug 4a back should be less than spacing lug 4a thickness, in order to guarantee effectively to press from both sides tightly not to drop. The limiting convex blocks 4a can be arranged in a plurality of numbers and are circumferentially distributed on the mounting groove 4 d.

With reference to fig. 1, 2 and 4, a tapered surface 1d is provided between the mounting port 1a and the mounting cavity 1b in which the valve core 2 is placed, a shoulder 4c is provided outside the inner end of the compression nut 4, and a seal ring 7 is compressed between the tapered surface 1d and the shoulder 4 c. This time sealing washer 7 can prevent that liquid from getting into the cavity between valve body 1 and the case 2 from the threaded connection position of nut 4 and valve body 1, and the sealing washer 7 that compresses tightly has certain effect of relaxing to nut 4 simultaneously.

Referring to fig. 1 and 3, the water through hole 4e of the compression nut 4 is coaxial with the water through hole 1c of the valve body 1 and has the same diameter; the outer end of the compression nut 4 is provided with a hexagonal sunk groove 4 b. The hexagonal sink 4b facilitates the assembly of the nut 4, and the size of the water through hole 4e is consistent with that of the water through hole 1c, so that the fluid resistance can be reduced.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a one-piece ball valve, includes valve body (1), and valve body (1) internally mounted has spherical case (2), and case (2) top is connected with control case (2) pivoted valve rod (3), installing port (1a) of valve body (1) one end for packing into case (2), installing port (1a) interior screw-thread fit has gland nut (4), is provided with left gasket (5), its characterized in that between gland nut (4) and case (2): the middle of the compression nut (4) is provided with a water through hole (4e), the inner end of the water through hole (4e) is provided with an annular mounting groove (4d), the inner wall of the mounting groove (4d) is provided with a limiting convex block (4a), and the back of the left gasket (5) is clamped on the limiting convex block (4 a).

2. The one-piece ball valve of claim 1, wherein: a conical surface (1d) is arranged between the mounting opening (1a) and a mounting cavity (1b) for placing the valve core (2), a shoulder (4c) is arranged on the outer side of the inner end of the compression nut (4), and a sealing ring (7) is compressed between the conical surface (1d) and the shoulder (4 c).

3. The one-piece ball valve of claim 1, wherein: and a hexagonal sink groove (4b) is formed at the outer end of the compression nut (4).

4. The one-piece ball valve of claim 1, wherein: the other end of the valve core (2) is matched with a right gasket (6), and the right gasket (6) is abutted against the valve body (1).

5. The one-piece ball valve of claim 1, wherein: and the water through hole (4e) of the compression nut (4) is coaxial with the water through hole (1c) of the valve body (1) and has the same aperture.