CN220060548U - Clamp type butterfly valve - Google Patents

Abstract

The utility model discloses a clamp butterfly valve, comprising: a valve body; the guide mechanism is arranged between the clamp and the valve body, so that the valve body is positioned at the axial position of the clamp to form a coaxial structure when the clamp is connected with the valve body; the sealing ring is arranged in the valve body, and the sealing ring is extruded and deformed to form a seal after the clamping hoop clamps the valve body. The utility model has the following beneficial effects: the clamp butterfly valve achieves the purpose of quick replacement of the sealing ring and accurate coaxiality of the valve body.

Description

Clamp type butterfly valve

Technical Field

The utility model relates to a clamp type butterfly valve.

Background

The butterfly valve is the most commonly used cut-off and control element in a pipeline system, has the advantages of simple structure, accurate control, good cut-off effect and lower cost, and is widely applied to industries such as chemical industry, machinery, petroleum and the like. The existing butterfly valve products mainly comprise center line butterfly valves, double-disc butterfly valves and the like. The center line butterfly valve is the most commonly used butterfly valve product, and the main structure is that a valve body is arranged at the center line position of a pipeline system, a butterfly plate with a certain shape is rotatably arranged in the valve body, and the on-off and throttle control of fluid are realized through the rotation of the butterfly plate. The butterfly valve has simple and reliable structure and good working effect, and is a mature product and application at present.

However, the existing center line butterfly valve is complex in structure, the butterfly valve sealing ring is difficult to replace, the valve is required to be detached for replacement, and the butterfly valve is low in efficiency and easy to cause secondary pollution. Especially in some industries where cleanliness is required, this is clearly not in line with the requirements of use. Moreover, the connection of the valve body and the pipeline of the existing butterfly valve is troublesome, and the coaxiality of the valve body is difficult to realize accurately, so that the sealing effect and the service life of the butterfly valve can be influenced.

Based on the above situation, the utility model provides the following technical problems of improving the structure of the traditional center line butterfly valve, realizing the quick replacement of the sealing ring and the accurate coaxiality of the valve body.

Disclosure of Invention

The utility model aims to provide a clamp type butterfly valve. The clamp butterfly valve achieves the purpose of quick replacement of the sealing ring and accurate coaxiality of the valve body.

The technical aim of the utility model is realized by the following technical scheme:

a clamp butterfly valve, comprising: a valve body; the guide mechanism is arranged between the clamp and the valve body, so that the valve body is positioned at the axial position of the clamp to form a coaxial structure when the clamp is connected with the valve body; the sealing ring is arranged in the valve body, and the sealing ring is extruded and deformed to form a seal after the clamping hoop clamps the valve body.

The utility model is further provided with: a butterfly plate is arranged in the valve body, is arranged between the sealing rings and is deformed into a sealing quantity for cutting off fluid when the butterfly plate is in a closed state.

The utility model is further provided with: the guide mechanism comprises a clamp upper seat and a clamp lower seat, and a coaxial conical surface is formed among the valve body, the clamp upper seat and the clamp lower seat and used for guiding the valve body and the clamp to be automatically and coaxially installed.

The utility model is further provided with: the butterfly plate is connected with the manual connecting shaft, a positioning surface is arranged on the manual connecting shaft, and a positioning screw is arranged on one side of the clamp and used for positioning and fixing the manual connecting shaft.

The utility model is further provided with: the clamp upper seat and the clamp lower seat are respectively provided with a clamping groove and a clamping piece, and the clamping grooves and the clamping pieces are matched to enable the clamp lower seat to rotate around the clamping grooves to realize opening and closing of the clamp.

The utility model is further provided with: the clamp seat of honour is provided with the clamp bolt, is provided with on the clamp lower seat with clamp bolt matched with keyway, in the clamp bolt card goes into the keyway for the clamp is fixed and passes through the elasticity of adjusting the clamp bolt with the valve body.

In summary, the utility model has the following beneficial effects:

1. the clamp butterfly valve realizes the opening and closing of the clamp through the upper clamp seat, the lower clamp seat and the clamp bolt, and when the seal ring needs to be replaced, the seal ring can be conveniently replaced by loosening the clamp bolt and opening the clamp, the whole valve is not required to be disassembled, and the replacement efficiency of the seal ring is greatly improved.

2. The clamp butterfly valve realizes automatic coaxiality of the valve body and the clamp through the coaxial conical surfaces arranged among the valve body, the upper clamp seat and the lower clamp seat, ensures coaxiality of the valve body and a pipeline when the butterfly valve works, improves the sealing effect of the butterfly valve and prolongs the service life of the butterfly valve.

3. The butterfly valve has the advantages that the butterfly plate of the clamp butterfly valve extrudes the sealing rings arranged on the upper side and the lower side of the valve body, so that the sealing rings have a certain sealing capacity and enter the valve body, fluid interception is effectively realized, and a good sealing effect is achieved.

4. The butterfly valve is simple to control, the butterfly plate of the clamp butterfly valve is positioned at intervals of a designated angle through the positioning surface on the manual connecting shaft, the operation is simple, the opening degree of the butterfly valve is easy to control, and the accurate control of flow is realized.

5. The clamp butterfly valve is simple and reliable in installation, the valve is assembled and disassembled through the clamp and the clamp bolt, the operation is reliable, the service life is long, and the maintenance is convenient.

In conclusion, the clamp butterfly valve has the technical effects of quick replacement of the sealing ring, accurate and coaxial valve body, good sealing effect, simple control, simple and reliable structure and the like, and the technical effects can better solve the problems of the existing butterfly valve and have higher use value.

Drawings

FIG. 1 is a schematic diagram of an embodiment;

FIG. 2 is a schematic structural view of the clip;

FIG. 3 is a schematic side elevational view of the clip;

fig. 4 is a cross-sectional view of an embodiment.

Reference numerals: 1. a valve body; 2. a clamp upper seat; 3. a clamp lower seat; 4. a clamping groove; 5. a clamping piece; 6. a clamp bolt; 7. a key slot; 8. a coaxial cone; 9. a butterfly plate; 10. a manual connecting shaft; 11. a positioning surface; 12. a set screw; 13. and (3) sealing rings.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The present utility model will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, a clamp butterfly valve comprises a valve body 1 and a clamp, wherein the clamp comprises a clamp upper seat 2 and a clamp lower seat 3.

As shown in fig. 2 and 3, a clamping groove 4 is provided on the clamp upper seat 2, and a clamping piece 5 corresponding to the clamping groove 4 is provided on the clamp lower seat 3. The clamping piece 5 is hinged with the clamping groove 4, and enables the clamp lower seat 3 to rotate around the clamp upper seat 2 to wrap the valve body 1. The clamp is provided with clamp bolt 6 on 2 one sides of seat, and clamp lower seat 3 one side is provided with and clamp bolt 6 matched with keyway 7, and in clamp bolt 6 card was gone into keyway 7 to adjust clamp bolt 6 control clamp's elasticity through the clamp nut.

As shown in fig. 4, a guiding mechanism is arranged between the upper clamp seat 2 and the valve body 1, and the guiding mechanism is a coaxial conical surface 8 formed among the valve body 1, the upper clamp seat 2 and the lower clamp seat 3, so as to guide the valve body 1 and the clamp to be automatically and coaxially aligned and installed under the action of the coaxial conical surface 8.

The middle part of the valve body 1 is provided with a butterfly plate 9 for controlling the opening and closing of the valve body 1. The butterfly plate 9 is located coaxial axis middle part, and butterfly plate 9 is connected with manual connecting axle 10, is provided with locating surface 11 on the manual connecting axle 10, and locating surface 11 is regular octagon, also can be regular hexagon, regular quadrangle etc.. Taking regular octagon as an example, each side corresponds to a rotation angle of 45 degrees, and the rotation angle can be determined by rotating the number of the sides, so that the butterfly plate 9 is simpler and more convenient to control.

In addition, a positioning screw 12 is arranged on one side of the upper clamp seat 2, and the positioning screw 12 can be used for positioning and fixing the rotated position of the manual connecting shaft 10 under a specified angle.

Preferably, sealing rings 13 are arranged on the upper side and the lower side of the valve body 1, when the clamp clamps the valve body 1, the butterfly plate 9 extrudes the sealing rings 13 to form sealing, and when the butterfly plate 9 is in a closed state, the butterfly plate 9 extrudes the sealing rings 13, so that the sealing rings 13 have sealing capacity entering the valve body 1 (namely a valve cavity), and a better fluid cutting function is achieved.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

Claims (6)

1. A clamp butterfly valve, comprising: a valve body (1);

the clamp is arranged outside the valve body (1) and connected with the valve body (1), and a guide mechanism is arranged between the clamp and the valve body (1) so that the valve body (1) is coaxial at the axial position of the clamp when the clamp is connected with the valve body (1);

and the sealing ring (13) is arranged in the valve body (1), and the sealing ring (13) is extruded and deformed to form a seal after the clamping hoop clamps the valve body (1).

2. A clamp butterfly valve according to claim 1, characterized in that a butterfly plate (9) is arranged in the valve body (1), the butterfly plate (9) being arranged between the sealing rings (13) and being deformed into the valve body (1) in a closed state to form a sealing amount for intercepting a fluid.

3. The clamp butterfly valve according to claim 1, wherein the guiding mechanism comprises a clamp upper seat (2) and a clamp lower seat (3), and coaxial conical surfaces (8) are formed among the valve body (1), the clamp upper seat (2) and the clamp lower seat (3) and used for guiding the valve body (1) and the clamp to be automatically and coaxially installed.

4. The clamp butterfly valve according to claim 2, wherein the butterfly plate (9) is connected with a manual connecting shaft (10), a positioning surface (11) is arranged on the manual connecting shaft (10), and a positioning screw (12) is arranged on one side of the clamp and used for positioning and fixing the manual connecting shaft (10).

5. A clamp butterfly valve according to claim 3, wherein the clamp upper seat (2) and the clamp lower seat (3) are respectively provided with a clamping groove (4) and a clamping piece (5), and the clamping groove (4) and the clamping piece (5) are matched to enable the clamp lower seat (3) to rotate around the clamping groove (4) to realize opening and closing of the clamp.

6. A clamp butterfly valve according to claim 3, characterized in that the clamp upper seat (2) is provided with a clamp bolt (6), the clamp lower seat (3) is provided with a key slot (7) matched with the clamp bolt (6), when the clamp bolt (6) is clamped into the key slot (7), the clamp is fixed with the valve body (1) and the tightness of the clamp bolt (6) is adjusted.