CN216045989U - Snap ring type stop valve connecting structure - Google Patents

Abstract

The utility model relates to the technical field of pipeline connection, in particular to a clamp ring type stop valve connecting structure which comprises a valve body, wherein flanges are fixedly arranged at two ends of the valve body, a sealing groove is formed in one side, away from the valve body, of each flange, main bodies are arranged at two ends of the valve body, a first connecting pipeline and a second connecting pipeline are fixedly arranged in the main bodies at the two ends respectively, clamp rings are arranged on the upper side and the lower side of each flange of the main bodies, and the outer sides of the main bodies at the two ends are movably connected with an outer sleeve at one end, away from the valve body, through threads. The device has simple structure and small occupied space; the connecting links are few, the leakage hidden danger is few, and the reliability is high; and the connecting links are few, the construction efficiency is high, the connecting pieces are few, and the cost is low.

Description

Snap ring type stop valve connecting structure

Technical Field

The utility model relates to the technical field of pipeline connection, in particular to a snap ring type stop valve connecting structure.

Background

The stop valve is also called a stop valve, belonging to a forced sealing type valve, so when the valve is closed, pressure must be applied to a valve clack to prevent a sealing surface from leaking, when a medium enters the valve from the lower part of the valve clack, the resistance to be overcome by an operating force is the friction force of a valve rod and a filler and the thrust generated by the pressure of the medium, the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise, the failure of the valve rod bending can occur, and the stop valve is divided into three types according to the connection mode: the valve is characterized in that the valve body is provided with a valve clack, a valve rod is arranged in the valve cavity, the valve clack is connected with a stop valve, the stop valve is connected with a flange, a screw thread and a welding joint, after the self-sealing valve appears, the medium flow direction of the stop valve enters the valve cavity from the upper part of the valve clack, at the moment, the force for closing the valve is small under the action of medium pressure, the force for opening the valve is large, the diameter of the valve rod can be correspondingly reduced, and meanwhile, the valve is tighter under the action of the medium.

When the stop valve that uses at present connects, the connecting piece is more, and occupation space is great, and the operation is more, and is long during the worker, and is with high costs.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a snap ring type stop valve connection structure to solve the above problems.

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

a clamping ring type stop valve connecting structure comprises a valve body, wherein flanges are fixedly arranged at two ends of the valve body, a sealing groove is formed in one side, far away from the valve body, of each flange, main bodies are arranged at two ends of the valve body, a first connecting pipeline and a second connecting pipeline are fixedly arranged in the main bodies at the two ends respectively, clamping rings are arranged on the upper side and the lower side of each main body flange, and outer sleeves are movably connected to the outer sides of the main bodies at the two ends, far away from the valve body, through threads;

preferably, the two clamping rings are fixed through screws;

preferably, an O-shaped sealing ring is fixedly arranged inside the sealing groove;

preferably, a conical surface is arranged on one side, far away from the sealing groove, of the outer side of the flange;

preferably, both inner sides of the snap ring are engaged with the tapered surface of one side of the flange and one side of the body, respectively.

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

1. the clamping ring type stop valve connecting structure is simple in structure and small in occupied space; the connecting links are few, the leakage hidden danger is few, and the reliability is high.

2. This snap ring type stop valve connection structure, this device connecting link is few, and the efficiency of construction is high, and the connecting piece is few, and is with low costs.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the connection of the flange structure of the present invention.

In the figure: 1. a first connecting pipe; 2. a second connecting pipe; 3. a screw; 6. a valve body; 7. a flange; 9. a snap ring; 10. an O-shaped sealing ring; 11. a main body; 12. a jacket; 14. a conical surface; 15. sealing the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-2, a technical solution provided by the present invention is:

a clamp ring type stop valve connecting structure comprises a valve body 6, wherein flanges 7 are fixedly arranged at two ends of the valve body 6, a sealing groove 15 is formed in one side, away from the valve body 6, of each flange 7, main bodies 11 are arranged at two ends of the valve body 6, a first connecting pipeline 1 and a second connecting pipeline 2 are fixedly arranged inside the main bodies 11 at the two ends respectively, clamp rings 9 are arranged at the upper side and the lower side of the flange of each main body 11, and an outer sleeve 12 is movably connected to one end, away from the valve body 6, of the outer sides of the main bodies 11 at the two ends through threads;

in this embodiment, preferably, the two snap rings 9 are fixed by the screws 3;

in this embodiment, preferably, the O-ring 10 is fixedly disposed inside the sealing groove 15;

in this embodiment, preferably, the outer side of the flange 7 is provided with a tapered surface 14 on the side away from the sealing groove 15;

in this embodiment, it is preferable that both inner sides of the snap ring 9 are engaged with the tapered surface 14 of the flange 7 and the body 11, respectively.

When the connecting structure of the snap ring type stop valve is used, the outer sleeve 12 is firstly pre-pressed on the main body 11 but not in place before construction, the purpose is only to enable the outer sleeve 12 and the main body 11 to be integrated, the taking and the placing are convenient, the work is completed in a joint production factory, when the construction and the installation are carried out, the first connecting pipeline 1 and the second connecting pipeline 2 are firstly cut according to the size and the pipe orifice flash burrs are processed, the first connecting pipeline 1 and the second connecting pipeline 2 are respectively inserted into the inner holes of the main body 11 at two ends, the pre-pressed outer sleeve 12 is finally pressed by a special hydraulic mounting tool, at the moment, the main body 11 clamps the pipelines, the sealing rings are placed into the sealing grooves 15, the pressed main body 11 is butted with the snap ring 9 type stop valve flanges 7, the snap ring 9 is mounted to screw the screws 3, and the installation is completed, the structure of the connecting structure is simple, and the occupied space is small; the connecting links are few, the leakage hidden danger is few, and the reliability is high; and the connecting links are few, the construction efficiency is high, the connecting pieces are few, and the cost is low.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (5)

1. The utility model provides a snap ring formula stop valve connection structure, includes valve body (6), its characterized in that: the improved structure of the valve is characterized in that flanges (7) are fixedly arranged at two ends of the valve body (6), a sealing groove (15) is formed in one side, away from the valve body (6), of each flange (7), a main body (11) and two ends are arranged at two ends of the valve body (6), a first connecting pipeline (1) and a second connecting pipeline (2) are fixedly arranged inside the main body (11) respectively, snap rings (9) are arranged on the upper side and the lower side of the flange of the main body (11), and two ends of the outer side of the main body (11) are movably connected with an outer sleeve (12) through threads at one end, away from the valve body (6).

2. A snap-ring shut-off valve connection structure as claimed in claim 1, wherein: the two clamping rings (9) are fixed through screws (3).

3. A snap-ring shut-off valve connection structure as claimed in claim 1, wherein: an O-shaped sealing ring (10) is fixedly arranged inside the sealing groove (15).

4. A snap-ring shut-off valve connection structure as claimed in claim 1, wherein: the outer side of the flange (7) is provided with a conical surface (14) at one side far away from the sealing groove (15).

5. A snap-ring shut-off valve connection according to claim 4, wherein: the two sides of the inner part of the snap ring (9) are respectively meshed with the conical surface (14) on one side of the flange (7) and one side of the main body (11).

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