Electric automatic control mechanism of valve

Abstract

The utility model relates to the technical field of valves, in particular to a valve electric automatic control mechanism which comprises a valve shell, a valve ball is arranged in the valve shell, a valve seat is fixedly installed on the top of the valve shell through screws, a top frame is fixed on the outer wall of the valve seat, and installation holes are formed in the top and the bottom of the top frame. The inner wall of the mounting hole and the inner wall of the valve seat are rotationally connected with a valve rod inserted into the valve shell through bearings, the bottom of the valve rod is fixedly connected with the top of the valve ball, rotating mechanisms are arranged on the outer wall of the valve rod and in the top frame, and positioning assemblies are arranged on the top of the valve shell and the outer wall of the valve rod. The valve rod and the valve ball can be automatically driven to rotate by a certain angle, the flow speed can be automatically controlled, adjustment is convenient, and the use requirement can be effectively met.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to an electric automatic control mechanism for valves. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters of the conveyed medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metals, and radioactive media.

[0003] At present, when the valve is working, it needs to use a control mechanism for control processing. However, the existing valve control mechanism cannot autonomously control the flow rate when in use, the adjustment is not convenient, and it cannot effectively meet the use requirements. Therefore, it is urgent to design a valve electric automatic control mechanism to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a valve electric automatic control mechanism to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The electric automatic control mechanism of a valve comprises a valve housing, a valve ball is arranged inside the valve housing, a valve seat is fixedly mounted on the top of the valve housing by screws, a top frame is fixedly mounted on the outer wall of the valve seat, mounting holes are provided on the top and bottom of the top frame, and a valve stem inserted in the valve housing is rotatably connected to the inner wall of the mounting hole and the inner wall of the valve seat by bearings, the bottom of the valve stem is fixedly connected to the top of the valve ball, a rotating mechanism is arranged on the outer wall of the valve stem and the inside of the top frame, and a positioning assembly is arranged on the top of the valve housing and the outer wall of the valve stem.

[0007] Furthermore, the rotating mechanism includes a motor fixedly mounted on an inner wall of one side of the top frame, and a transmission wheel is fixedly mounted on the output shaft of the motor and the outer wall of the valve stem, and a transmission belt is connected between the two transmission wheels.

[0008] Furthermore, an inspection cover is fixedly installed on one side of the top frame, and a control module is fixedly installed on the inner wall of one bottom side of the top frame, and a PLC device is connected to the control module and the motor.

[0009] Furthermore, the positioning assembly includes a mounting groove opened on the top of the valve housing, and the outer wall of the valve stem is fixed with a ratchet disk arranged in the mounting groove, the inner wall of the mounting groove is rotatably connected with equidistantly distributed pawls, the pawls are clamped on the outer wall of the ratchet disk, and a spring is fixed between one side of the pawl and the inner wall of the mounting groove.

[0010] Furthermore, a sealing groove is provided at the bottom of the mounting groove, and a sealing plug which is sleeved on the outer wall of the valve stem is provided between the inner wall of the sealing groove and the interior of the valve housing. An annular groove is provided on the inner wall of the valve housing, and an annular sealing seat which fits in the annular groove is fixed on the outer wall of the valve ball.

[0011] Furthermore, a rotating bracket is fixed on the top of the valve stem.

[0012] Furthermore, the top of the valve seat is fixed with indicator lines that are equidistantly distributed in a ring shape, and the positions of the indicator lines correspond to the positions of the pawls. An indicator needle is fixed to one side of the outer wall of the valve stem, and the outer wall of the indicator needle corresponds to the outer wall of the indicator line.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, the electric control mechanism of the valve is composed of a rotating mechanism and a control module, which can automatically drive the valve stem and the valve ball to rotate a certain angle, so as to be convenient for autonomously controlling the flow rate and adjusting it conveniently, and can effectively meet the use requirements;

[0015] In the utility model, the valve stem can be positioned autonomously after the valve stem and the valve ball are adjusted to a certain angle, which facilitates fixing the controlled flow rate and ensures use efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the valve electric automatic control mechanism.

[0017] Figure 2 It is an overall cross-sectional view of the valve electric automatic control mechanism.

[0018] Figure 3 It is a schematic diagram of the indicator needle and indicator line structure of the valve electric automatic control mechanism.

[0019] Figure 4 This is a schematic diagram of the positioning component structure of the valve electric automatic control mechanism.

[0020] In the figure: 1. valve housing; 2. valve seat; 3. top frame; 4. valve stem; 5. swing frame; 6. inspection cover; 7. valve ball; 8. sealing plug; 9. positioning assembly; 901. mounting groove; 902. ratchet plate; 903. pawl; 904. spring; 10. transmission belt; 11. motor; 12. control module; 13. annular sealing seat; 14. indicator needle; 15. indicator line. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 In the embodiment of the utility model, the electric automatic control mechanism of the valve comprises a valve housing 1, a valve ball 7 is arranged inside the valve housing 1, and a valve seat 2 is fixedly installed on the top of the valve housing 1 by screws, a top frame 3 is fixedly arranged on the outer wall of the valve seat 2, mounting holes are arranged on the top and bottom of the top frame 3, and the inner wall of the mounting hole and the inner wall of the valve seat 2 are rotatably connected with a valve stem 4 inserted in the valve housing 1 through a bearing, the bottom of the valve stem 4 is fixedly connected with the top of the valve ball 7, a rotating mechanism is arranged on the outer wall of the valve stem 4 and the inside of the top frame 3, the rotating mechanism comprises a motor 11 fixedly installed on the inner wall of one side of the top frame 3, and a transmission wheel is fixedly installed on the output shaft of the motor 11 and the outer wall of the valve stem 4, a transmission belt 10 is transmission-connected between the two transmission wheels, an inspection cover 6 is fixedly installed on one side of the top frame 3, and a control module 12 is fixedly installed on the inner wall of one side of the bottom of the top frame 3, and the control module 12 is connected to the motor 11 PLC equipment, and the top of the valve housing 1 and the outer wall of the valve stem 4 are provided with a positioning component 9, the positioning component 9 includes a mounting groove 901 opened at the top of the valve housing 1, and the outer wall of the valve stem 4 is fixed with a ratchet disk 902 arranged in the mounting groove 901, the inner wall of the mounting groove 901 is rotatably connected with equidistantly distributed pawls 903, the pawls 903 are stuck on the outer wall of the ratchet disk 902, and a spring 904 is fixed between one side of the pawl 903 and the inner wall of the mounting groove 901, and the motor 11 in the rotating mechanism is used to drive the transmission belt 10 and the transmission wheel to rotate, and drive the valve stem 4 and the valve ball 7 to rotate, so as to form an electric control mechanism of the valve, which can automatically drive the valve stem 4 and the valve ball 7 to rotate a certain angle, so as to autonomously control the flow rate, and after adjusting the valve stem 4 and the valve ball 7 to a certain angle, the valve stem 4 can be autonomously positioned by the positioning component 9, so as to fix the controlled flow rate.

[0023] Specifically, a sealing groove is provided at the bottom of the mounting groove 901, and a sealing plug 8 which is sleeved on the outer wall of the valve stem 4 is provided between the inner wall of the sealing groove and the interior of the valve housing 1. An annular groove is provided on the inner wall of the valve housing 1, and an annular sealing seat 13 which fits in the annular groove is fixed on the outer wall of the valve ball 7. A rotating bracket 5 is fixed on the top of the valve stem 4, and the valve is manually adjusted by means of the rotating bracket 5 and the valve stem 4.

[0024] Specifically, indicator lines 15 are fixed to the top of the valve seat 2 and are distributed in a ring shape at equal distances, and the position of the indicator lines 15 corresponds to the position of the pawl 903. An indicator needle 14 is fixed to one side of the outer wall of the valve stem 4, and the outer wall of the indicator needle 14 corresponds to the outer wall of the indicator line 15. The rotation angle is determined by the corresponding positions of the indicator needle 14 and the indicator line 15, which facilitates precise positioning of the valve adjustment.

[0025] The working principle of the utility model is: when in use, the user uses the PLC device and the control module 12 to control the rotation of the motor 11 in the rotating mechanism, drives the transmission belt 10 and the transmission wheel to rotate, thereby drives the valve stem 4 to rotate, drives the valve ball 7 to rotate in the valve housing 1, and is convenient for forming an electric control mechanism of the valve. It can also automatically drive the valve stem 4 and the valve ball 7 to rotate a certain angle, which is convenient for autonomous control of the flow rate. Moreover, after adjusting the valve stem 4 and the valve ball 7 to a certain angle, the valve stem 4 can be autonomously positioned by the positioning component 9, which is convenient for fixing the controlled flow rate. Moreover, the valve can also be manually adjusted by the rotating frame 5 and the valve stem 4.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. An electric automatic control mechanism for a valve, comprising a valve housing (1), characterized in that: A valve ball (7) is arranged inside the valve housing (1), and a valve seat (2) is fixedly mounted on the top of the valve housing (1) by screws, a top frame (3) is fixed to the outer wall of the valve seat (2), mounting holes are provided at the top and bottom of the top frame (3), and a valve stem (4) inserted in the valve housing (1) is rotatably connected to the inner wall of the mounting hole and the inner wall of the valve seat (2) via a bearing, the bottom of the valve stem (4) is fixedly connected to the top of the valve ball (7), a rotating mechanism is arranged on the outer wall of the valve stem (4) and the inside of the top frame (3), and a positioning assembly (9) is arranged on the top of the valve housing (1) and the outer wall of the valve stem (4).

2. The valve electric automatic control mechanism according to claim 1, characterized in that: The rotating mechanism comprises a motor (11) fixedly mounted on the inner wall of one side of the top frame (3), and a transmission wheel is fixedly mounted on the output shaft of the motor (11) and the outer wall of the valve stem (4), and a transmission belt (10) is connected between the two transmission wheels.

3. The valve electric automatic control mechanism according to claim 2 is characterized in that: An inspection cover (6) is fixedly mounted on one side of the top frame (3), and a control module (12) is fixedly mounted on an inner wall of a bottom side of the top frame (3), and a PLC device is connected to the control module (12) and the motor (11).

4. The valve electric automatic control mechanism according to claim 3 is characterized in that: The positioning assembly (9) includes a mounting groove (901) opened at the top of the valve housing (1), and a ratchet disc (902) arranged in the mounting groove (901) is fixed to the outer wall of the valve stem (4), and the inner wall of the mounting groove (901) is rotatably connected with equidistantly distributed ratchets (903), and the ratchets (903) are stuck on the outer wall of the ratchet disc (902), and a spring (904) is fixed between one side of the ratchet disc (903) and the inner wall of the mounting groove (901).

5. The valve electric automatic control mechanism according to claim 4, characterized in that: A sealing groove is provided at the bottom of the installation groove (901), and a sealing plug (8) sleeved on the outer wall of the valve stem (4) is provided between the inner wall of the sealing groove and the interior of the valve housing (1). An annular groove is provided on the inner wall of the valve housing (1), and an annular sealing seat (13) fitted in the annular groove is fixed to the outer wall of the valve ball (7).

6. The valve electric automatic control mechanism according to claim 1, characterized in that: A rotating bracket (5) is fixed on the top of the valve stem (4).

7. The valve electric automatic control mechanism according to claim 1, characterized in that: The top of the valve seat (2) is fixed with indicating lines (15) distributed in a circular shape at equal distances, and the position of the indicating lines (15) corresponds to the position of the pawl (903). An indicating needle (14) is fixed to one side of the outer wall of the valve stem (4), and the outer wall of the indicating needle (14) corresponds to the outer wall of the indicating line (15).

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