V-shaped ball valve capable of realizing micro-flow regulation in small opening range

Abstract

The utility model discloses a V-shaped ball valve capable of adjusting micro flow within a small opening range, and relates to the field of ball valves. The V-shaped ball valve comprises a valve body unit and a rotating unit arranged above the valve body unit, the rotating unit comprises a mounting base, a rotating cover, a valve rod, a limiting groove, a limiting strip and a positioning assembly, the limiting groove is formed in the outer ring surface of the mounting base, and the rotating cover is arranged on the valve rod. The limiting strip is fixedly installed on the surface of the inner ring of the rotating cover and arranged in the limiting groove in a sliding mode, and the positioning assembly is arranged between the limiting groove and the limiting strip and used for small-angle movement positioning of the limiting strip. According to the V-shaped ball valve capable of achieving adjustment of the micro flow within the small opening range, the positioning assembly arranged between the limiting groove and the limiting strip is used for achieving small-angle moving positioning of the limiting strip, and therefore accurate adjustment of the flow under the micro opening is allowed to be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball valve technical field, concretely is V type ball valve with realizing the adjustment of small flow in small opening range. BACKGROUND

[0002] In the field of fluid control, especially in industrial applications that require precise regulation of small flow, traditional valves often fail to meet the requirements of high precision and high stability. Traditional valve design often has limited adjustment range, inaccurate flow control, poor sealing performance and other problems, especially in situations that require frequent adjustment of small flow, these problems are particularly prominent.

[0003] In order to solve the above problems, some new type of regulating valve appears in the market, such as V type ball valve. V type ball valve can provide more linear flow characteristics in small opening range due to its unique V type valve core design, so as to realize more accurate flow control. However, the existing V type ball valve often has problems such as inaccurate positioning and difficult adjustment when regulating small flow, which affects its performance and reliability in practical application. UTILITY MODEL CONTENTS

[0004] In view of the defects of prior art, the utility model provides V type ball valve with regulating small flow in small opening range, solves the problems of limited adjustment range and inaccurate flow control of traditional valve design in situations that require frequent adjustment of small flow.

[0005] In order to realize the above purpose, the utility model realizes the following technical scheme: V type ball valve with regulating small flow in small opening range, including valve body unit and rotating unit arranged above valve body unit, the rotating unit includes:

[0006] Mounting seat, which is fixedly installed above the valve body unit;

[0007] Rotary cover, which is rotatably arranged above the mounting seat;

[0008] Valve stem, which is arranged through the mounting seat, and the top end and bottom end of the valve stem are connected with the rotary cover and the valve body unit respectively;

[0009] Limiting groove, which is arranged on the outer surface of the mounting seat;

[0010] Limiting strip, which is fixedly installed on the inner surface of the rotary cover and is slidingly arranged in the limiting groove;

[0011] Positioning assembly, which is arranged between the limiting groove and the limiting strip and is used for positioning small angle movement of the limiting strip.

[0012] Preferably, the valve body unit includes:

[0013] valve body main part;

[0014] valve core, which is rotationally arranged in the interior of the valve body main part, and the bottom end of the valve rod extends towards the interior of the valve body main part and is connected with the valve core.

[0015] Preferably, the interior of the valve body main part is fixedly installed with a valve seat, and the valve seat is in contact with the outer side of the valve core.

[0016] Preferably, the outer side of the rotating cover is fixedly installed with a rotating handle.

[0017] Preferably, the positioning assembly comprises:

[0018] a movable cavity, which is arranged between the inner wall of the limiting strip and the rotating cover;

[0019] a limiting strip, which is slidingly arranged on the inner wall of the movable cavity;

[0020] a plurality of positioning grooves, which are selectively arranged on the inner wall of the limiting groove, and the end portion of the limiting strip is inserted into the inner wall of the positioning groove.

[0021] Preferably, the end portion of the limiting strip in the positioning groove is provided with inclined surfaces on both sides.

[0022] Preferably, a positioning spring is fixedly connected between the inner wall of the movable cavity and the outer side of the limiting strip.

[0023] The utility model discloses a V type ball valve with the adjustment of realizing tiny flow in small opening range, and has the beneficial effects as follows:

[0024] The V type ball valve with the adjustment of realizing tiny flow in small opening range utilizes the limiting groove and the limiting strip, the limiting groove is arranged on the outer ring surface of the mounting seat and is used for limiting the rotation range of the rotating cover, the limiting strip is fixedly installed on the inner ring surface of the rotating cover and is slidingly arranged in the limiting groove, and the stability and accuracy of rotation are further ensured, and the positioning assembly arranged between the limiting groove and the limiting strip is used for realizing the small-angle movement positioning of the limiting strip, so that the accurate adjustment of flow under tiny opening is allowed. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and 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.

[0026] Figure 1The utility model discloses a whole structure schematic view.

[0027] Figure 2 The utility model discloses a structure sectional view.

[0028] Figure 3 The utility model discloses a part structure sectional view.

[0029] Figure 4 The utility model discloses a structure schematic view of positioning assembly.

[0030] In the figure: 1, valve body unit;11, valve body main part;12, valve seat;13, valve core;2, rotating unit;21, mounting seat;22, rotating cover;221, rotating handle;23, valve rod;24, limit slot;25, limit strip;26, positioning assembly;261, movable cavity;262, positioning strip;263, positioning slot;264, positioning spring. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantage of the embodiment of the application more clear, the technical scheme in the embodiment of the application is described clearly and completely, obviously, the described embodiment is a part of the embodiment of the application, not all the embodiment of the application. Based on the embodiment in the application, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the application.

[0032] The embodiment of the application provides the V-type ball valve with the adjustment of the small flow in the small opening range, and solves the problems of the limited adjustment range and the inaccurate flow control of the traditional valve design in the occasion requiring the frequent adjustment of the small flow.

[0033] The limit slot 24 is arranged on the outer circle surface of the mounting seat 21, is used for limiting the rotation range of the rotating cover 22, the limit strip 25 is fixedly installed on the inner circle surface of the rotating cover 22, is slidably arranged in the limit slot 24, further ensures the stability and accuracy of rotation, and the positioning assembly 26 is arranged between the limit slot 24 and the limit strip 25, is used for realizing the small-angle movement positioning of the limit strip 25, thereby allowing the accurate adjustment of flow under the small opening.

[0034] In order to better understand the above technical scheme, the above technical scheme will be described in detail in combination with the drawings in the specification and specific embodiments.

[0035] The embodiment of the utility model discloses V-type ball valve with the adjustment of the small flow in the small opening range, including valve body unit 1 and the rotating unit 2 set up in valve body unit 1 top, rotating unit 2 includes:

[0036] A mounting seat 21 is fixedly installed above the valve body unit 1;

[0037] A rotating cover 22 is rotatably arranged above the mounting seat 21;

[0038] A valve stem 23 is arranged through the mounting seat 21, and the top end and the bottom end of the valve stem 23 are connected with the rotating cover 22 and the valve body unit 1 respectively;

[0039] A limiting groove 24 is arranged on the outer surface of the mounting seat 21;

[0040] A limiting strip 25 is fixedly installed on the inner surface of the rotating cover 22, and is slidably arranged in the limiting groove 24;

[0041] A positioning assembly 26 is arranged between the limiting groove 24 and the limiting strip 25, and is used for positioning the small-angle movement of the limiting strip 25.

[0042] By arranging the limiting groove 24 and the limiting strip 25, the limiting groove 24 is arranged on the outer surface of the mounting seat 21 to limit the rotation range of the rotating cover 22, the limiting strip 25 is fixedly installed on the inner surface of the rotating cover 22 and is slidably arranged in the limiting groove 24, which further ensures the stability and accuracy of the rotation, and the positioning assembly 26 arranged between the limiting groove 24 and the limiting strip 25 is used for positioning the small-angle movement of the limiting strip 25, thereby allowing the accurate adjustment of the flow at a small opening.

[0043] In particular, the valve body unit 1 comprises:

[0044] A valve body 11;

[0045] A valve core 13 is rotatably arranged in the valve body 11, and the bottom end of the valve stem 23 extends into the valve body 11 and is connected with the valve core 13.

[0046] Further, the valve body 11 is fixedly installed with a valve seat 12 inside, and the valve seat 12 is in contact with the outer side of the valve core 13.

[0047] The valve seat 12 is fixedly installed in the valve body 11 and is in contact with the outer side of the valve core 13 to ensure the sealing property, and the valve core 13 is rotatably arranged in the valve body 11 and is connected with the rotating cover 22 through the valve stem 23 to realize the opening and closing of the valve.

[0048] Further, a rotating handle 221 is fixedly installed on the outer side of the rotating cover 22, and the rotating handle 221 is fixed on the outer side of the rotating cover 22 to facilitate manual operation of the rotating cover 22.

[0049] In particular, the positioning assembly 26 comprises:

[0050] An active cavity 261 is arranged between the inner wall of the rotating cover 22 and the inside of the limiting strip 25;

[0051] A positioning strip 262 is slidingly arranged on the inner wall of the active cavity 261;

[0052] A plurality of positioning grooves 263 are arranged on the inner wall of the limiting groove 24, and the end of the positioning strip 262 is inserted into the inner wall of the positioning groove 263.

[0053] Further, a positioning spring 264 is fixedly connected between the inner wall of the active cavity 261 and the outer side of the positioning strip 262.

[0054] The active cavity 261 is arranged between the inner wall of the rotating cover 22 and the inside of the limiting strip 25, which provides an active space for the positioning strip 262.

[0055] Further, the end of the positioning strip 262 in the positioning groove 263 is arranged as a slope.

[0056] The end of the positioning strip 262 in the positioning groove 263 is arranged as a slope, which facilitates the positioning strip 262 to smoothly slide into or out of the positioning groove 263 when subjected to an external force.

[0057] The basic principle and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A V-type ball valve having a small flow adjustment in a small opening range, comprising a valve body unit (1) and a rotating unit (2) provided above the valve body unit (1), characterized in that, The rotating unit (2) comprises: a mounting seat (21) fixedly installed above the valve body unit (1); a rotating cover (22) rotatably arranged above the mounting seat (21); a valve stem (23) penetratingly arranged in the mounting seat (21), and the top end and the bottom end of the valve stem (23) are connected with the rotating cover (22) and the valve body unit (1) respectively; a limiting groove (24) formed on the outer surface of the mounting seat (21); a limiting strip (25) fixedly installed on the inner surface of the rotating cover (22), and the limiting strip (25) is slidingly arranged in the limiting groove (24); a positioning assembly (26) arranged between the limiting groove (24) and the limiting strip (25), and used for small-angle movement positioning of the limiting strip (25).

2. The V-ball valve having adjustment of a minute flow rate in a small opening range according to claim 1, characterized by, The valve body unit (1) comprises: a valve body (11); a valve core (13) rotatably arranged in the valve body (11), and the bottom end of the valve stem (23) extends into the valve body (11) and is connected with the valve core (13).

3. The V-ball valve having adjustment of a minute flow rate in a small opening range according to claim 2, characterized by The valve body (11) is fixedly installed with a valve seat (12) inside, and the valve seat (12) is in contact with the outer side of the valve core (13).

4. The V-ball valve having regulation of a minute flow rate in a small opening range according to claim 1, characterized by The outer side of the rotating cover (22) is fixedly installed with a rotating handle (221).

5. The V-ball valve having regulation of a minute flow rate in a small opening range according to claim 1, characterized by, The positioning assembly (26) comprises: a movable cavity (261) formed between the inner side of the limiting strip (25) and the inner wall of the rotating cover (22); a positioning strip (262) slidingly arranged on the inner wall of the movable cavity (261); a plurality of positioning grooves (263) selectively formed on the inner wall of the limiting groove (24), and the end portion of the positioning strip (262) is inserted into the inner wall of the positioning groove (263).

6. The V-ball valve with adjustment of a small flow in a small opening range according to claim 5, characterized in that, The end portion of the positioning strip (262) on both sides of the positioning groove (263) is formed as an inclined surface.

7. The V-ball valve with adjustment of a small flow in a small opening range according to claim 5, characterized by, The inner wall of the movable cavity (261) and the outer side of the positioning strip (262) are fixedly connected with a positioning spring (264).

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