A valve body and electric actuator connection mechanism and its application

Abstract

The present invention relates to a valve body and electric actuator connection mechanism and its application, belonging to the technical field of electric control valve control connection parts. The connection mechanism includes an actuator connection part, a valve body connection part and a cylindrical sleeve. The connection mechanism designed by the present invention connects the valve body and the electric actuator respectively. When used, the connection mechanism can be directly used to connect the electric actuator with the valve body. The control of multiple valve bodies can be completed by one electric actuator. The installation and disassembly are convenient and efficient, and the application cost is reduced at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of electric control valve control connectors, and in particular to a valve body and electric actuator connection mechanism and application thereof. Background Art

[0002] At present, the connection between various valve bodies such as ball valves, butterfly valves, etc. and electric actuators (electric control mechanisms) is mainly vertical. On-site installation is inconvenient due to space and other factors, or the heightening method is used to facilitate installation but takes up space. Summary of the invention

[0003] In order to solve the problems existing in the prior art, the patent of the present invention designs a connection mechanism that can enable the valve body and the electric actuator to be assembled and connected separately, and is easy to install and disassemble.

[0004] The technical solution adopted in the present invention is: the connecting mechanism includes an actuator connecting member, a valve body connecting member and a cylindrical sleeve, the sleeve has a square connecting port extending along its axis, the actuator connecting member includes a connecting plate, the center of the connecting plate is a circular through hole, and its lower surface is provided with square plug blocks on the left and right sides of the through hole, and the four corners of the connecting plate are provided with mounting holes; the center of the valve body connecting member is a cylindrical cavity extending through the upper and lower parts, and vertical slots are provided on the left and right sides, and the shape of the slots is adapted to the plug blocks, the front and rear side surfaces of the valve body connecting member are C-shaped surfaces, and the left and right ends of the bottom side surfaces of the C-shaped surfaces on both sides are provided with positioning holes, the actuator connecting member is plugged into the valve body connecting member from the upper side, the through hole corresponds to the position of the cylindrical cavity, and has the same inner diameter, and the sleeve is plugged into the through hole and the cylindrical cavity. The actuator connector is installed at the power output shaft of the electric actuator, and the valve body connector is installed at the valve stem of the valve body. When in use, first insert the sleeve into the cylindrical cavity of the valve body connector, and the lower end of the sleeve's connecting port engages with the valve stem of the valve body. Then insert the actuator connector into the valve body connector, and the power shaft output end of the electric actuator must be engaged and inserted into the upper end of the sleeve's connecting port at the same time. At this time, start the electric actuator, and its power shaft drives the valve stem to rotate through the sleeve to realize the opening and closing of the valve body.

[0005] Furthermore, a positioning groove is provided on the side of the shaft sleeve along its length direction, and the positioning groove is provided with uniform scale lines along its length, which can be used for angular alignment when the shaft sleeve and the actuator are assembled.

[0006] Furthermore, a V-shaped window connected to the cylindrical cavity is provided on the vertical surface of the C-shaped surface on the front side of the valve body connector, and the opening and closing angle of the V-shaped window is proportional to the visible range of the positioning groove on the sleeve in the V-shaped window. By checking the scale lines on the V-shaped window and the positioning groove to confirm the opening of the valve rotation, it plays the role of indicating the valve opening, and no additional pointer structure is required. The V-shaped window uses a triangular structure. During the rotation of the sleeve, the positioning groove gradually rotates in the triangular window, and it is more intuitive and easy to identify to represent the size of the opening.

[0007] Furthermore, the top opening edge of the cylindrical cavity of the valve body connector is concave to form an anti-disassembly groove. An anti-disassembly cover is arranged in the anti-disassembly groove to prevent unauthorized personnel from opening and closing the valve body.

[0008] Furthermore, the two plug blocks of the actuator connector and the groove walls of the two side slots of the valve body connector are respectively provided with internally threaded connection holes. After plug-in assembly, the two can be connected and fixed by passing bolts through the connection holes.

[0009] The valve body and electric actuator connection mechanism disclosed by the present invention is particularly suitable for the field of HVAC valve control.

[0010] The present invention also designs a method for using the valve body and electric actuator connection mechanism, the actuator connecting piece is connected to the power shaft output end of the electric actuator through screws, and the power output end is used as the center of the through hole when it is set; the valve body connecting piece is installed and fixed at the valve stem, and the valve stem is used as the axis of the cylindrical cavity when it is set; when in use, the sleeve is inserted into the cylindrical cavity of the valve body connecting piece, and the lower end of the connecting port is engaged and connected with the valve stem, and the plug of the actuator connecting piece is inserted into the slot of the valve body connecting piece from above, and the sleeve passes through the through hole, and the upper end of its connecting port is engaged and connected with the power shaft output end of the electric actuator; the electric actuator is started, and the power shaft drives the valve stem to rotate through the sleeve, and the positioning groove on the sleeve starts to turn right from the leftmost side of the V-shaped window, and the opening of the valve body at this time is determined by observing the scale lines of the positioning groove that gradually appear in the V-shaped window.

[0011] Furthermore, the actuator connector and the shaft sleeve of one electric actuator are used for the valve body connectors of multiple valve bodies, thereby reducing the number of electric actuators used, and using one set of electric actuators to control multiple valve bodies.

[0012] Compared with the prior art, the connection mechanism between a valve body and an electric actuator designed in the patent of the present invention has the following advantages:

[0013] (1) The connection mechanism changes the traditional integrated connection between the valve body and the electric actuator into a split assembly connection, so that one electric actuator can be used to operate multiple valve bodies in sequence, reducing the application of electric actuators, which is particularly suitable for the field of HVAC valve control.

[0014] (2) The connection mechanism is plug-in assembly, which is easy to install and disassemble, accurate in positioning, and flexible in application.

[0015] (3) A V-shaped window is opened on the side of the valve body connector, and a positioning groove with scale lines is set on the shaft sleeve, so that the changes of the scale lines when the positioning groove is rotated can be observed through the window, which is convenient for confirming the opening of the valve body. There is no need to design an additional pointer structure, and the observation is intuitive.

[0016] (4) An anti-dismantling groove is provided at the top of the cylindrical cavity of the valve body connector, which is used to set an anti-dismantling cover to prevent unauthorized personnel from opening and closing the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the assembly diagram of the connection mechanism between the valve body and the electric actuator.

[0018] Figure 2 This is a split schematic diagram of the connection mechanism between the valve body and the electric actuator.

[0019] In the figure, 1 actuator connector, 2 valve body connector, 3 sleeve, 11 connecting plate, 12 plug block, 111 through hole, 112 mounting hole, 121 connecting hole, 21 slot, 22 C-shaped surface, 23 cylindrical cavity, 24 anti-disassembly groove, 25 V-shaped window, 26 positioning hole, 31 connecting port, 32 positioning groove DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. The technical solutions in the embodiments of the present invention are clearly and completely described, and the described embodiments are only embodiments of a part of the present invention, not all of them. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figure 1 , 2 As shown, the patent of the present invention designs an embodiment of a valve body and electric actuator connection mechanism, including an actuator connector 1, a valve body connector 2 and a shaft sleeve 3, which are plug-connected and assembled.

[0022] The actuator connector 1 includes a connecting plate 11, and plug blocks 12 are symmetrically arranged at the left and right ends of the lower side of the connecting plate 11. A circular through hole 111 is opened in the middle of the connecting plate 11, and mounting holes 112 are respectively arranged at its four corners. The mounting holes 112 are used to bolt the electric actuator.

[0023] The middle of the valve body connector 2 is a through cylindrical cavity 23, and the inner diameter of the cylindrical cavity 23 is the same as the inner diameter of the through hole 111 of the actuator connector 1. The left and right sides of the valve body connector 2 are respectively provided with vertical slots 21, and the shape and size of the slots 21 are adapted to the plug block 12. At the same time, the middle of the groove walls on both sides of the slots 21 and the middle of the plug block 12 are respectively provided with internal threaded connection holes 121. The front and rear sides of the valve body connector 2 are respectively C-shaped surfaces 22, and the left and right ends of the bottom side surfaces of the C-shaped surfaces 22 on both sides are respectively provided with positioning holes 26, and the positioning holes 26 are used to bolt the valve body. In addition, a V-shaped V-shaped window 25 is provided on the side of the valve body connector 2 in a transverse V shape, and the bottom edge of the V-shaped window 25 is a horizontal edge, and its opening angle can be designed according to the opening of the valve body to be observed. In addition, a circle of depression is provided at the upper opening of the cylindrical cavity 23 to form an anti-dismantling groove 24, and the anti-dismantling groove 24 is used to place an anti-dismantling cover. The circumferential side of the anti-dismantling cover is an elastic clip. After being placed in the upper opening of the cylindrical cavity, the surrounding elastic clips will be engaged in the anti-dismantling groove and can only be removed with special tools to prevent unauthorized personnel from opening the anti-dismantling cover.

[0024] The sleeve 3 is cylindrical, and its outer diameter is smaller than the inner diameter of the through hole 111 and the cylindrical cavity 23, and its height is the same as the assembly height of the actuator connector 1 and the valve body connector 2. The sleeve 3 has a square connection port 31 extending along its axis, and the diameter of the connection port 31 is adapted to the external dimensions of the power shaft output end of the electric actuator and the valve stem of the valve body. A vertical 1mmx1mm positioning groove 32 is provided on the side of the sleeve 3 along its height direction, and uniform scale lines are provided at the positioning groove 32 along its length direction.

[0025] When the connection mechanism of the patented design of the present invention is used, the actuator connector 1 is installed and fixed at the output end of the power shaft of the electric actuator, the valve body connector 2 is installed and fixed at the valve stem, the sleeve 3 is inserted into the cylindrical cavity 23 of the valve body connector 2, and the lower end of the connection port 31 is snap-connected with the valve stem; the plug block 12 of the actuator connector 1 is inserted from above into the slot 21 of the valve body connector 2, the sleeve 3 passes through the through hole 111, and the upper end of its connection port 31 is snap-connected with the output end of the power shaft of the electric actuator. Start the electric actuator, the power shaft drives the valve stem to rotate through the sleeve 3, the positioning groove 32 on the sleeve 3 starts to turn right from the leftmost side of the V-shaped window 25, and the valve body opening at this time is determined by observing the scale line of the positioning groove 32 that gradually appears in the V-shaped window 25.

[0026] The above contents are only preferred embodiments of the present invention and cannot be used to limit the scope of implementation of the present invention. That is, any simple equivalent changes and modifications made according to the claims and description of the present invention are still within the scope of the present invention.

Claims

1. A valve body and electric actuator connection mechanism, characterized in that: The connecting mechanism comprises an actuator connecting piece, a valve body connecting piece and a cylindrical sleeve, the sleeve has a square connecting port along its axis, the actuator connecting piece comprises a connecting plate, the center of the connecting plate is a circular through hole, and its lower surface is provided with square plug blocks on the left and right sides of the through hole, and the four corners of the connecting plate are provided with mounting holes; the center of the valve body connecting piece is a cylindrical cavity penetrating from top to bottom, and the left and right sides are provided with vertical slots, the shape of the slots is adapted to the plug blocks, the front and rear side surfaces of the valve body connecting piece are C-shaped surfaces, and the left and right ends of the bottom side surfaces of the C-shaped surfaces on both sides are provided with positioning holes, the actuator connecting piece is plugged into the valve body connecting piece from the upper side, the position of the through hole corresponds to the cylindrical cavity, the inner diameter is the same, and the sleeve is plugged into the through hole and the cylindrical cavity; A positioning groove is provided on the side of the sleeve along its length, and uniform scale lines are provided on the positioning groove along its length; A V-shaped window communicating with the cylindrical cavity is provided on the side of the valve body connector, and the opening and closing angle of the V-shaped window is proportional to the visible range of the positioning groove on the shaft sleeve in the V-shaped window.

2. The valve body and electric actuator connection mechanism according to claim 1, characterized in that: The top opening edge of the cylindrical cavity of the valve body connecting piece is concave to form an anti-disassembly groove.

3. The valve body and electric actuator connection mechanism according to claim 2, characterized in that: The two inserting blocks of the actuator connecting piece and the groove walls of the two side slots of the valve body connecting piece are respectively provided with connecting holes with internal threads.

4. Application of the valve body and electric actuator connection mechanism as claimed in claim 3 in HVAC valve control.

5. The method for using the valve body and electric actuator connection mechanism according to claim 3, characterized in that: The actuator connector is connected to the power shaft output end of the electric actuator through screws, and the power shaft output end is the center of the through hole when it is set; the valve body connector is installed and fixed at the valve stem, and the valve stem is the axis of the cylindrical cavity when it is set; when in use, the sleeve is inserted into the cylindrical cavity of the valve body connector, and the lower end of the connecting port is snap-connected with the valve stem, and the plug of the actuator connector is inserted into the slot of the valve body connector from above, and the sleeve passes through the through hole, and the upper end of its connecting port is snap-connected with the power shaft output end of the electric actuator; start the electric actuator, the power shaft drives the valve stem to rotate through the sleeve, and the positioning groove on the sleeve starts from the leftmost side of the V-shaped window and turns to the right, and the opening of the valve body at this time is determined by observing the scale lines of the positioning groove that gradually appear in the V-shaped window.

6. The method for using the valve body and electric actuator connection mechanism according to claim 5, characterized in that: The actuator connector of one electric actuator and one shaft sleeve are used for the valve body connectors of multiple valve bodies.

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