Pneumatic valve controller

Abstract

The utility model discloses a pneumatic valve controller, which comprises an electromagnetic valve, a valve core, a valve core, a valve core, a valve core, a valve core, a valve core, a valve core, a valve core and a valve core, and is characterized in that the electromagnetic valve is mounted in a cavity of a shell; the prompting assembly is used for displaying the connection state of the controller and the opening and closing state of the valve; and the driving assembly is used for pressing a trigger button on the electromagnetic valve to manually open and close the electromagnetic valve. According to the utility model, the switching between the opening state and the closing state of the valve and the visualization of the opening and closing state of the valve can be realized, the convenience of the manual operation of the electromagnetic valve is ensured, and the arrangement difficulty among the components on the controller is reduced at the same time.

Description

Technical Field

[0001] The utility model relates to the field of valve control devices, and particularly relates to a pneumatic valve controller. Background Art

[0002] A pneumatic valve drives the opening and closing operation of the valve through a cylinder. The control mode is generally a mode of a cylinder, a solenoid valve, and 2SPDT / PNP output. The opening and closing of the driving cylinder for the valve is realized by switching two compressed air output channels on the solenoid valve through a controller. For example, the invention patent with the patent number 201810316678.9 discloses a valve controller for a pneumatic valve, which can detect and drive a pneumatic actuator to control the pneumatic valve for adjustment. It includes a housing, and a circuit controller and a solenoid valve are arranged inside the housing. A pneumatic valve is connected to the outer side surface of the housing. The circuit controller, the solenoid valve, and the pneumatic valve can be communicatively connected. A magnetic sensitive element detector is arranged on the circuit controller and can be magnetically connected to the pneumatic actuator arranged outside the housing.

[0003] The operation of the solenoid valve requires power supply. To ensure the flexibility of use, a manual operation button is usually provided on the solenoid valve for manual switching. Since the button is usually arranged on the same side of the air outlet on the solenoid valve, and the air inlet on the solenoid valve is located on the other side. When the air inlet is exposed, the button may be hidden inside the housing, thus affecting the manual operation of the solenoid valve. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a pneumatic valve controller, which can realize the switching between the open state and the closed state of the valve and the visualization of the opening and closing state of the valve, and at the same time reduce the arrangement difficulty between the components on the controller while ensuring the convenience of the manual operation of the solenoid valve.

[0005] The technical solution adopted by the utility model to solve the above problems is:

[0006] A pneumatic valve controller, comprising:

[0007] A solenoid valve, which is used for commutating and conveying compressed air into a cylinder on the valve. The solenoid valve is installed in a cavity of the housing;

[0008] A prompting component, which is used for displaying the connection state of the controller and the opening and closing state of the valve;

[0009] A driving component, which is used for pressing a trigger button on the solenoid valve to manually open and close the solenoid valve.

[0010] As a further improvement of the above technical solution, the magnetic valve is provided with an air inlet, two exhaust ports and two first connection ports. The air inlet and the exhaust ports are both exposed on the outer side surface of the housing. The two first connection ports correspond to the two exhaust ports one by one and can be connected. Two second connection ports for respectively connecting the air inlet and the air outlet on the cylinder are provided on the outer side surface of the housing. The second connection ports correspond to the first connection ports one by one, and the corresponding first connection ports and second connection ports are connected by hoses.

[0011] As a further improvement of the above technical solution, it further includes a control board for controlling the operation of the solenoid valve. The control board is detachably installed in the cavity of the housing. The housing is provided with a power interface, a signal interface and two network interfaces. The solenoid valve, the power interface, the signal interface and the network interfaces are all electrically connected to the control board.

[0012] As a further improvement of the above technical solution, the prompting component includes a plurality of indicator lights. The indicator lights are installed on the top surface of the housing, and the indicator lights are electrically connected to the control board.

[0013] As a further improvement of the above technical solution, the prompting component further includes a transmission shaft. The transmission shaft is horizontally rotatably connected to the housing. The bottom end of the transmission shaft passes through the housing and is exposed on the bottom surface of the housing. Two limit switches arranged vertically are provided on the housing. The limit switches are electrically connected to the control board. Two trigger wheels for triggering the limit switches and corresponding to the limit switches one by one are provided on the transmission shaft. The two trigger wheels are arranged in a cross shape.

[0014] As a further improvement of the above technical solution, a prompting disk is installed at the top end of the transmission shaft. Two first marks for indicating that the valve is in the open state and two second marks for indicating that the valve is in the closed state are provided on the top surface of the prompting disk. The first marks and the second marks are alternately arranged in an equiangular ring around the central axis of the mark disk. Two through holes for the first marks or the second marks to be exposed are formed on the top surface of the housing. The two through holes are arranged equiangularly around the central axis of the prompting disk.

[0015] As a further improvement of the above technical solution, the prompting component further includes a proximity switch. The proximity switch is detachably installed in the cavity of the housing and its triggering end passes through the housing and is exposed on the bottom surface of the housing. The proximity switch is electrically connected to the control board.

[0016] As a further improvement of the above technical solution, the driving component includes a rotating disk. The rotating disk is rotatably arranged on the housing. A knob member for driving the rotating disk to rotate relative to the housing is rotatably connected to the outer side surface of the housing. A resisting portion is provided on the rotating disk. The thickness of the resisting portion in the axial direction of the rotating disk gradually increases along the circumferential direction of the rotating disk. The trigger button is located on the rotation trajectory of the resisting portion.

[0017] Compared with the prior art, the utility model has the following advantages and effects:

[0018] (1) Through the cooperative setting of the solenoid valve and the prompting component, the utility model realizes the visualization of the opening and closing states of the valve while switching between the open state and the closed state of the valve. At the same time, combined with the effect of the driving component driving the solenoid valve for manual switching, it not only ensures the convenience of manual operation of the solenoid valve but also reduces the layout difficulty among the components on the controller.

[0019] (2) The utility model can integrate the solenoid valve, the prompting component and the driving component on the housing, reducing the potential safety hazards caused by the exposure of the components and the connecting wires between the components. Moreover, the housing can play a certain protective role, improving the reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the pneumatic valve controller of Embodiment 1 from Perspective 1.

[0021] Figure 2 is a schematic structural diagram of the pneumatic valve controller of Embodiment 1 from Perspective 2.

[0022] Figure 3 is a schematic internal structural diagram of the pneumatic valve controller of Embodiment 1.

[0023] Figure 4 is an enlarged schematic diagram of a partial structure inside the pneumatic valve controller of Embodiment 1.

[0024] Figure 5 is an enlarged schematic diagram of a partial structure inside the housing of Embodiment 2.

[0025] Wherein, the housing 1, the power interface 11, the signal interface 12, the network cable interface 13, the solenoid valve 2, the trigger button 21, the prompting component 3, the indicator light 31, the driving component 4, the rotating disk 41, the knob part 42, the abutting part 43, the control board 5, the air inlet 61, the air outlet 62, the first connection port 63, the second connection port 64, the hose 65, the transmission shaft 71, the limit switch 72, the trigger wheel 73, the prompting disk 81, the first mark 82, the second mark 83, the through hole 84, the proximity switch 9, the trigger end 91. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following further elaborates on the present utility model in detail through embodiments in conjunction with the drawings. The following embodiments are explanations of the present utility model, and the present utility model is not limited to the following embodiments.

[0027] Embodiment 1.

[0028] See Figures 1-4, the pneumatic valve controller of this embodiment includes a housing 1, a solenoid valve 2, a prompt component 3 for displaying the connection status of the controller and the opening and closing status of the valve, and a driving component 4 for manually opening and closing the solenoid valve 2 by pressing the trigger button 21 on the solenoid valve 2.

[0029] The solenoid valve 2 is used to convey compressed air for reversing into the cylinder on the valve and is detachably installed in the cavity of the housing 1. A control board 5 for controlling the operation of the solenoid valve 2 is detachably installed in the cavity of the housing 1. The housing 1 is provided with a power interface 11, a signal interface 12, and two network interfaces 13. The solenoid valve 2, the power interface 11, the signal interface 12, and the network interfaces 13 are all electrically connected to the control board 5. The solenoid valve 2 is provided with an air inlet 61, two exhaust ports 62, and two first connection ports 63. The air inlet 61 and the exhaust ports 62 are both exposed on the outer side surface of the housing 1. The two first connection ports 63 correspond to the two exhaust ports 62 one by one and can be connected. Two second connection ports 64 for respectively connecting the air inlet 61 and the air outlet on the cylinder are provided on the outer side surface of the housing 1. The second connection ports 64 correspond to the first connection ports 63 one by one, and the corresponding first connection ports 63 and second connection ports 64 are connected through a hose 65.

[0030] During simple use, the air inlet 61 and the air outlet on the cylinder are respectively connected to the two second connection ports 64 through an air pipe. Subsequently, signals are input to the control board 5 through an operating device (such as a computer, a PLC programmer, etc.) connected via the signal interface 12, so that the control board 5 controls the operation of the solenoid valve 2 (that is, the magnetic force generated by the energization of the coil on the solenoid valve 2 is used as the opening and closing power of the pilot valve, and the compressed air passes through the pilot valve to control the moving position of the valve core, thereby switching the compressed air output channel). The compressed air entering the solenoid valve 2 through the air inlet 61 is output from the original first connection port 63 for air intake and enters the cylinder. At the same time, the compressed air discharged from the cylinder enters the solenoid valve 2 through the original first connection port 63 for air outlet and is discharged from the corresponding exhaust port 62, thereby realizing the operation of the cylinder and achieving the purpose of controlling the valve to switch between the open state and the closed state.

[0031] In this embodiment, the controllers can also be cascaded through the network interfaces 13 and finally connected to the control end (such as a computer, a PLC, a DCS supporting the bus protocol) via a network cable in the form of a field bus, realizing network bus control, so as to achieve the purpose of controlling the opening and closing of the valve and monitoring the valve status through the bus, improving the convenience of operation.

[0032] In this embodiment, the simple use mode and the bus connection mode can be accessed simultaneously or either one can be accessed arbitrarily.

[0033] See Figure 1The prompt component 3 includes a plurality of indicator lights 31, which are installed on the top surface of the housing 1. The indicator lights 31 are electrically connected to the control board 5, which improves the operator's control over the use status of the controller and the opening and closing status of the valve, and ensures the convenience of use.

[0034] In this embodiment, the indicator light 31 can be used to display the Internet cable connection status, power connection status and control signal connection status of the controller (that is, the indicator light 31 is on when it is in a normal connection state) and the valve open and closed states (that is, the corresponding indicator light 31 is on when the valve is in different opening and closing states).

[0035] See also Figures 2-4 The prompt component 3 shown in the figure also includes a transmission shaft 71, which is horizontally rotatably connected to the shell 1, and the bottom end of the transmission shaft 71 passes through the shell 1 and is exposed on the bottom surface of the shell 1. The shell 1 is provided with two limit switches 72 arranged up and down, and the limit switch 72 is electrically connected to the control board 5. The transmission shaft 71 is provided with two trigger wheels 73 for triggering the limit switch 72 and corresponding to the limit switch 72 one by one, and the two trigger wheels 73 are arranged in a cross shape.

[0036] When in use, the bottom end of the transmission shaft 71 is inserted into the driving shaft of the cylinder and cannot rotate. When the reversing assembly drives the cylinder to operate, the driving shaft on the cylinder rotates to open or close the valve. At this time, the two limit switches 72 are respectively in a closed state and an open state, and in this process, the driving shaft will drive the transmission shaft 71 to rotate together, so that the two trigger wheels 73 rotate, so that the states of the two limit switches 72 are switched (that is, one of the limit switches 72 changes from a closed state to an open state after the trigger wheel 73 is released from the resistance, and the other limit switch 72 changes from an open state to a closed state after being resisted by the trigger wheel 73). At the same time, the control board 5 can control the corresponding indicator light 31 to switch between the lit and extinguished states according to the state switching of the two limit switches 72 (that is, the on and off of the circuits where the corresponding limit switches 72 and the indicator light 31 are located), so that the opening and closing states of the valves can be visualized.

[0037] See also Figure 1 , Figure 3 A prompt disk 81 is installed at the top of the transmission shaft 71. Two first marks 82 for indicating that the valve is in an open state and two second marks 83 for indicating that the valve is in a closed state are provided on the top surface of the prompt disk 81. The first marks 82 and the second marks 83 are arranged alternately in a ring shape at equal angles around the central axis of the marking disk. Two through holes 84 for revealing the first marks 82 or the second marks 83 are provided on the top surface of the shell 1. The two through holes 84 are arranged at equal angles around the central axis of the prompt disk 81.

[0038] When the transmission shaft 71 rotates, it drives the prompt disk 81 to rotate together. When the valve switches between the open state and the closed state, the first mark 82 and the second mark 83 exposed on the through hole 84 can be synchronously converted, thereby further improving the visualization degree of the valve opening and closing states.

[0039] See Figure 3 , Figure 4 , the driving assembly 4 includes a rotating disk 41 which is rotatably arranged on the housing 1. A knob member 42 for driving the rotating disk 41 to rotate relative to the housing 1 is rotatably connected to the outer side surface of the housing 1. A resisting portion 43 is provided on the rotating disk 41, and the thickness of the resisting portion 43 in the axial direction of the rotating disk 41 gradually increases along the circumferential direction of the rotating disk 41. The trigger button 21 is located on the rotation track of the resisting portion 43.

[0040] When manually controlling the solenoid valve 2, rotate the knob member 42 to make the rotating disk 41 rotate relative to the housing 1, so that the trigger button 21 is pressed under the extrusion of the resisting portion 43, realizing the switching of the compressed air output channel on the solenoid valve 2.

[0041] In this embodiment, the structure for manually controlling the solenoid valve 2 by pressing the trigger button 21 is commonly provided on the existing solenoid valve 2 and belongs to the conventional technical means in this field, so the above structure will not be specifically described.

[0042] Embodiment Two.

[0043] See Figure 5 , the structure of this embodiment is basically the same as that of the pneumatic valve controller in Embodiment One, and the difference lies in that: the prompt assembly 3 further includes a proximity switch 9 which is detachably installed in the cavity of the housing 1 and its trigger end 91 passes through the housing 1 and is exposed on the bottom surface of the housing 1. The proximity switch 9 is electrically connected to the control board 5.

[0044] During use, the trigger end of the proximity switch 9 is located on the sliding track of the driving shaft on the cylinder. During the process of the cylinder switching between the valve open state and the closed state, the driving shaft approaches or moves away from the proximity switch 9, thereby realizing the switching of the state of the proximity switch 9, enabling the control board 5 to control the corresponding indicator light 31 to switch between the lit state and the extinguished state (that is, the on and off of the circuit where the proximity switch 9 and the indicator light 31 are located).

[0045] What is described above in this specification is only an example of the present invention. Those skilled in the technical field to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, as long as they do not deviate from the content of this specification of the present invention or exceed the scope defined by this claim book, they should all fall within the protection scope of the present invention.

Claims

1. Pneumatic valve controller, characterized in that: include: A solenoid valve is used to transfer compressed air to the cylinder on the valve. The solenoid valve is installed in the cavity of the housing. Prompt component, which is used to display the connection status of the controller and the opening and closing status of the valve; The drive assembly is used to press a trigger button on the solenoid valve to manually open and close the solenoid valve.

2. The pneumatic valve controller according to claim 1, characterized in that: The magnetic valve is provided with an air inlet, two exhaust ports and two first connecting ports. The air inlet and the exhaust ports are exposed on the outer side of the shell. The two first connecting ports correspond one-to-one with the two exhaust ports and can be connected. The outer side of the shell is provided with two second connecting ports for respectively connecting the air inlet and the air outlet on the cylinder. The second connecting ports correspond one-to-one with the first connecting ports, and the corresponding first connecting ports are connected to the second connecting ports through a hose.

3. The pneumatic valve controller according to claim 1, characterized in that: It also includes a control board for controlling the operation of the solenoid valve. The control board is detachably installed in the cavity of the shell. The shell is provided with a power interface, a signal interface and two network cable interfaces. The solenoid valve, power interface, signal interface and network cable interface are all electrically connected to the control board.

4. The pneumatic valve controller according to claim 3, characterized in that: The prompt component comprises a plurality of indicator lights which are mounted on the top surface of the shell and are electrically connected to the control panel.

5. The pneumatic valve controller according to claim 4, characterized in that: The prompt assembly shown also includes a transmission shaft, which is horizontally rotatably connected to the shell, and the bottom end of the transmission shaft passes through the shell and is exposed on the bottom surface of the shell. The shell is provided with two limit switches arranged up and down, and the limit switches are electrically connected to the control panel. The transmission shaft is provided with two trigger wheels for triggering the limit switches and corresponding to the limit switches one by one, and the two trigger wheels are arranged in a cross shape.

6. The pneumatic valve controller according to claim 5, characterized in that: A prompt disk is installed at the top end of the transmission shaft, and two first marks for indicating that the valve is in an open state and two second marks for indicating that the valve is in a closed state are provided on the top surface of the prompt disk. The first marks and the second marks are arranged in an alternating ring shape at equal angles around the central axis of the marking disk. Two through holes for revealing the first mark or the second mark are provided on the top surface of the shell, and the two through holes are arranged at equal angles around the central axis of the prompt disk.

7. The pneumatic valve controller according to claim 4, characterized in that: The prompt assembly shown also includes a proximity switch, which is detachably installed in the cavity of the shell and has a trigger end that passes through the shell and is exposed on the bottom surface of the shell. The proximity switch is electrically connected to the control board.

8. The pneumatic valve controller according to claim 1, characterized in that: The driving assembly includes a rotating disk, which is rotatably arranged on the shell. A knob member is rotatably connected to the outer surface of the shell and is used to drive the rotating disk to rotate relative to the shell. A resisting portion is provided on the rotating disk. The thickness of the resisting portion in the axial direction of the rotating disk gradually increases along the circumference of the rotating disk. The trigger button is located on the rotation trajectory of the resisting portion.

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