Intelligent butterfly valve with electric actuating mechanism

Abstract

The utility model belongs to the technical field of butterfly valves, and particularly relates to an intelligent butterfly valve with an electric actuating mechanism, which comprises a butterfly valve body and a machine box, a mounting seat is fixed at the top of a valve body of the butterfly valve body, a valve rod is vertically and rotatably connected in the mounting seat, a gear is horizontally and fixedly assembled at the top end of the valve rod, and an inserting column is vertically fixed at the top end of the valve rod. An opening is formed in the bottom end of the machine box, the bottom end of the machine box is fixed to the mounting base through mounting bolts, a sliding hole is vertically formed in one side of the top face of the machine box in a penetrating mode, a lifting rod frame is vertically assembled in the sliding hole in the top face of the machine box in a sliding mode, a clamping groove block is vertically fixed to the bottom end of the lifting rod frame, and the clamping groove block is inserted into a tooth groove of the gear; an electric telescopic rod is vertically fixed to the top face of the machine box. The clamping groove block is driven to be clamped in the tooth groove of the gear, so that the stability of the valve rod in the valve body is guaranteed, the situation that the butterfly valve is prone to starting deviation under the influence of the internal pressure difference of the butterfly valve is avoided, and the opening accuracy of the butterfly valve is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to butterfly valve technical field, concretely relates to a kind of intelligent butterfly valve with electric actuator. BACKGROUND

[0002] As a kind of fluid control device, butterfly valve is widely used in the truncation and regulation of pipeline fluid medium, and has important application value in petrochemical industry, water treatment, food processing and other industries. With the advantages of simple structure, small size, light weight and convenient operation, butterfly valve gradually becomes the mainstream equipment in industrial fluid control field.

[0003] Intelligent butterfly valve is a valve combining traditional mechanical structure and modern electronic control technology. It not only has the basic functions of ordinary butterfly valve, but also can realize automatic operation and remote monitoring through built-in or external sensors, actuators and controllers. This type of butterfly valve is widely used in various industrial fields that require precise control of flow, pressure or temperature. The application of intelligent butterfly valve greatly improves the intelligent level of industrial system, making fluid control more accurate and efficient.

[0004] For example, the patent with publication number CN219472862U proposes an intelligent adjustment electric butterfly valve, which includes a butterfly valve, an electric actuator and a cover mechanism. The cover mechanism replaces the original bolted cover by designing a layered cover body with positioning fitting pins, making the maintenance of the electric actuator more convenient, while providing good waterproof performance, ensuring the reliable operation of the electric butterfly valve in complex environments. However, the above-mentioned butterfly valve lacks a limiting actuator when opening or closing, and cannot maintain the stability of the butterfly valve in the open or closed state. Under high pressure or high flow rate conditions, the butterfly valve plate is prone to position deviation due to internal pressure difference, affecting the normal use and control accuracy of the butterfly valve.

[0005] There is a common problem in existing butterfly valves, which is the lack of effective opening and closing limiting device. When the butterfly valve plate is affected by pressure difference, it is easy to start deviation, which leads to the instability of the opening and closing state. At the same time, the opening and closing control accuracy of existing electric butterfly valve is insufficient, which is difficult to meet the high precision requirements of industrial complex scenes for fluid control. UTILITY MODEL CONTENTS

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide an intelligent butterfly valve with electric actuator, which can effectively maintain the opening and closing stability of the valve plate under high pressure or high flow rate conditions, and improve the precision of fluid regulation through intelligent control, so as to adapt to the needs of modern industrial fluid control.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0008] The utility model provides an intelligent butterfly valve with electric actuator, including butterfly valve body and machine box, the valve body top of butterfly valve body is fixed with mounting seat, and is vertically rotatoryly connected with valve rod in mounting seat, the top of valve rod is fixedly assembled with gear wheel, and the top of valve rod is vertically fixed with the post, the bottom of machine box is open, and the bottom of machine box is fixed on mounting seat through mounting bolt, the top surface one side of machine box is vertically opened and passed through and is slidably assembled with pull rod frame in the top surface slide hole of machine box, the bottom of pull rod frame is vertically fixed with the slot block, and the slot block is inserted into the gear wheel's tooth slot, the top surface of machine box is vertically fixed with electric telescopic rod, and the top of electric telescopic rod is fixed on the top surface of pull rod frame.

[0009] Further, a slot is formed through the center of the gear, and the slot on the gear is inserted into the top of the post.

[0010] Further, a screw slot is vertically formed on the top surface of the post, and a locking bolt is threadedly assembled in the screw slot on the post.

[0011] Further, a sliding groove is horizontally formed through the other side of the machine box, and a moving strip is horizontally slidably assembled in the sliding groove of the machine box.

[0012] Further, a rack is vertically fixed on one side of the vertical end surface of the moving strip, and the rack is transversely provided with a plurality of racks.

[0013] Further, a push-pull strip is vertically fixed at one end of the moving strip, and a screw cylinder is horizontally fixed at the top end of the push-pull strip.

[0014] Further, an execution motor is horizontally fixed on the top surface of the machine box, and a screw rod is horizontally fixed at the output end of the execution motor, and the screw rod is threadedly formed through the screw cylinder at the top end of the push-pull strip.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The utility model discloses a combination structure of electric telescopic rod and pull rod frame, which can effectively ensure the stability of the valve rod in the valve body after the opening and closing of the butterfly valve are completed, thereby solving the problem of the starting deviation of the butterfly valve caused by the internal pressure difference in the prior art, improving the precision when the butterfly valve is opened and closed, and ensuring the reliability of equipment operation.

[0017] By setting the transmission structure of the execution motor, the screw rod, the push-pull strip, the moving strip and the rack in the machine box, and by using the meshing effect of the rack and the gear, stable overturning of the valve rod and precise opening and closing adjustment of the valve plate are realized.

[0018] The utility model discloses still through the close cooperation of inserting post, screw groove and locking bolt, has strengthened the transmission connection strength of gear and valve rod, avoided the transmission loose or the condition of separation because of long -time use, further promoted the stability and durability of system, has guaranteed the stable operation of equipment in high pressure or high flow rate working condition.

[0019] In addition, by using high-strength materials and anti-corrosion treatment processes in the machine box and each part, such as zinc plating the surfaces of the gear and the rack and quenching the push-pull strip, the overall service life and reliability of the butterfly valve are greatly improved, meeting the application requirements in complex industrial environments. The whole machine design is simple and efficient, easy to maintain and repair, and also reduces the production and maintenance costs. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the overall structure schematic diagram of the utility model;

[0021] Figure 2 It is the structure schematic diagram of the overall in the exploded state of the utility model;

[0022] Figure 3 It is the structure schematic diagram of the butterfly valve body in the exploded state of the utility model;

[0023] Figure 4 It is the structure schematic diagram of the machine box in the exploded state of the utility model;

[0024] Figure 5 It is the structure schematic diagram of the clamping groove block in the exploded state of the utility model.

[0025] In the drawings, the component list represented by each sign is as follows:

[0026] 1, butterfly valve body;11, mounting seat;12, valve rod;13, inserting post;14, gear;141, clamping groove;15, locking bolt;2, machine box;21, mounting bolt;22, sliding groove;23, moving strip;24, rack;25, push-pull strip;251, screw cylinder;26, screw rod;27, execution motor;28, pull rod frame;281, electric telescopic rod;29, clamping groove block. DETAILED DESCRIPTION

[0027] In order to make the purpose and the advantage of the utility model more clearly clear, the following specific description of the utility model is combined with examples. It should be understood that the following text is only used to describe one or several specific implementation modes of the utility model, and does not strictly limit the protection scope of the utility model specific request.

[0028] REFERENCE Figures 1-5As shown, a kind of intelligent butterfly valve with electric actuator, including butterfly valve body 1 and machine box 2, the valve body top of butterfly valve body 1 is fixed with mounting seat 11, and mounting seat 11 vertically rotatably connects with valve stem 12, the top of valve stem 12 is fixedly assembled with gear 14, gear 14 is made of standard material Q235 steel, surface is galvanized to prevent corrosion, the depth of the tooth groove of gear 14 is 2.5 millimeters, and the width is 1.8 millimeters, to improve the stability when gear and slot block 29 are engaged;The top of valve stem 12 is vertically fixed with plug column 13, the diameter of plug column 13 is 15 millimeters, and stainless steel 304 material is used to improve durability;The bottom of machine box 2 is open, and the bottom of machine box 2 is fixed on mounting seat 11 by mounting bolt 21 of M8 specification, machine box 2 is made of aluminum alloy material, and surface is sprayed with anti-oxidation coating;The top surface of machine box 2 is vertically provided with sliding hole, and the top surface of machine box 2 is vertically slidably assembled with pull rod frame 28, the bottom of pull rod frame 28 is vertically fixed with slot block 29, the thickness of slot block 29 is 5 millimeters, and alloy steel is used to manufacture, slot block 29 is inserted into the tooth groove of gear 14, and the engagement accuracy is 0.02 millimeters, to ensure stable locking;The top surface of machine box 2 is vertically fixed with electric telescopic rod 281 with adjustable range of 0-150 millimeters, electric telescopic rod 281 is powered by direct current 24V, and the top is fixed on the top surface of pull rod frame 28, and the accurate movement of pull rod frame 28 is realized by the action of telescopic rod 281.

[0029] Referring to Figure 4 and Figure 5 As shown, the center of gear 14 is provided with slot 141, the diameter of slot 141 is 8 millimeters, and the depth is 3 millimeters, slot 141 is inserted into the top of plug column 13, and the coaxiality and transmission stability during rotation are ensured by the close fit between plug column 13 and gear 14 after insertion.

[0030] Referring to Figure 3 and Figure 4 As shown, the top surface of plug column 13 is vertically provided with screw groove, the inner diameter of screw groove is 6 millimeters, the thread pitch is 1.5 millimeters, and locking bolt 15 is screw assembled in screw groove, locking bolt 15 is made of high-strength carbon steel, and nylon washer is added to the surface to improve vibration resistance and prevent loosening.

[0031] Referring to Figure 3 and Figure 4 As shown, the other side of machine box 2 is horizontally provided with sliding groove 22, the width of sliding groove 22 is 12 millimeters, and the depth is 8 millimeters, and moving strip 23 is horizontally slidably assembled in sliding groove 22 of machine box 2, moving strip 23 is processed by aluminum alloy material, and the outer surface is treated by anodic oxidation to enhance wear resistance.

[0032] Referring to Figure 4As shown, the vertical end of the moving strip 23 is vertically fixed with a rack 24, the rack 24 is transversely provided with 10 racks, the modulus of each rack is 2, the tooth height is 3mm, the rack 24 is made of high-strength steel and is quenched to ensure durability in long-term use.

[0033] Reference Figure 4 As shown, the end of the moving strip 23 is vertically fixed with a push-pull strip 25, the length of the push-pull strip 25 is 50mm, the diameter is 10mm, and the push-pull strip 25 is made of 45# steel and is quenched after hardening treatment; the top end of the push-pull strip 25 is horizontally fixed with a screw cylinder 251, the inner diameter of the screw cylinder 251 is 8mm, the outer diameter is 12mm, and the screw cylinder 251 is made of brass material to reduce friction resistance and prolong service life.

[0034] Reference Figure 4 And Figure 5 As shown, the top surface of the machine box 2 is horizontally fixed with an execution motor 27, the execution motor 27 is a stepping motor with a power of 40W, which can realize high-precision angle control; the output end of the execution motor 27 is horizontally fixed with a screw rod 26, the screw rod 26 is a standard M8 threaded rod, which is made of stainless steel material to enhance corrosion resistance, the screw rod 26 is threaded through the screw cylinder 251 at the top end of the push-pull strip 25, and the screw rod 26 is driven by the motor to realize the horizontal movement of the push-pull strip 25, thereby controlling the movement of the moving strip 23 and the rack 24, and finally driving the valve plate to open and close accurately.

[0035] The working principle of the utility model is: when using, in order to facilitate the later limit position to keep the stability of the valve plate in the butterfly valve body 1 in the opening and closing state, when the valve plate in the adjusted butterfly valve body 1 is in the opening and closing state, the electric telescopic rod 281 on the top surface of the machine box 2 is started to extend, the lifting lever frame 28 is pushed to vertically slide on the top surface of the machine box 2, the clamping groove block 29 at the bottom end of the lifting lever frame 28 is driven to vertically move downward, the clamping groove block 29 is clamped in the gear slot of the gear 14, thereby ensuring the stability of the valve rod in the valve body, avoiding the influence of the pressure difference in the butterfly valve, which easily leads to the starting deviation of the butterfly valve, and ensuring the accuracy of the opening of the butterfly valve.

[0036] When the opening and closing valve plate is used, the execution motor 27 on the top surface of the machine box 2 is started to drive the screw rod 26 to rotate, the push-pull strip 25 is driven by the screw to drive the moving strip 23 to horizontally slide in the sliding groove 22, so that the rack 24 on the moving strip 23 meshes with the gear 14 to rotate, which is used to drive the valve rod to overturn in the valve body and drive the valve plate to deflect and move.

[0037] The above merely describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application. Structures, devices and operation methods not specifically described and explained in the present application are implemented according to conventional means in the art, unless otherwise specified and limited.

Claims

1. A smart butterfly valve with an electric actuator, characterized in that, The device includes a butterfly valve body (1) and a housing (2). The top of the valve body of the butterfly valve body (1) is fixed with a mounting base (11), and a valve stem (12) is vertically rotatably connected in the mounting base (11). A gear (14) is horizontally fixed at the top of the valve stem (12), and a plug (13) is vertically fixed at the top of the valve stem (12). The bottom of the housing (2) is open, and the bottom of the housing (2) is fixed to the mounting base (11) by mounting bolts (21). On the top side of the box (2), a sliding hole is vertically opened, and a lifting rod frame (28) is vertically slidably assembled in the sliding hole on the top surface of the box (2). A slot block (29) is vertically fixed at the bottom end of the lifting rod frame (28), and the slot block (29) is inserted into the tooth groove of the gear (14). An electric telescopic rod (281) is vertically fixed on the top surface of the box (2), and the top end of the electric telescopic rod (281) is fixed on the top surface of the lifting rod frame (28).

2. The intelligent butterfly valve with an electric actuator according to claim 1, characterized in that: A slot (141) is provided through the center of the gear (14), and the slot (141) on the gear (14) is inserted into the top of the insert (13).

3. The intelligent butterfly valve with an electric actuator according to claim 2, characterized in that: The top surface of the insert (13) is vertically provided with a screw groove, and a locking bolt (15) is threaded in the screw groove of the insert (13).

4. The intelligent butterfly valve with an electric actuator according to claim 1, characterized in that: A horizontal groove (22) is provided on the other side of the housing (2), and a moving strip (23) is horizontally slidably assembled in the groove (22) of the housing (2).

5. The intelligent butterfly valve with an electric actuator according to claim 4, characterized in that: A rack (24) is vertically fixed on one side of the vertical end face of the movable bar (23), and multiple racks (24) are arranged horizontally.

6. The intelligent butterfly valve with an electric actuator according to claim 5, characterized in that: One end of the movable bar (23) is vertically fixed with a push-pull bar (25), and the top end of the push-pull bar (25) is horizontally fixed with a screw cylinder (251).

7. The intelligent butterfly valve with an electric actuator according to claim 6, characterized in that: An actuator motor (27) is horizontally fixed on the top surface of the housing (2), and a screw (26) is horizontally fixed at the output end of the actuator motor (27), and the screw (26) is threaded through the screw cylinder (251) at the top of the push-pull bar (25).

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