CN219734400U

CN219734400U - Three-way ball valve feedback device

Info

Publication number: CN219734400U
Application number: CN202321076836.0U
Authority: CN
Inventors: 张永强; 董年益; 窦富平
Original assignee: Ropo Valve Yixing Co ltd
Current assignee: Ropo Valve Yixing Co ltd
Priority date: 2023-05-08
Filing date: 2023-05-08
Publication date: 2023-09-22
Anticipated expiration: 2033-05-08

Abstract

The utility model discloses a three-way ball valve feedback device, which comprises a shell, wherein a rotating shaft connected with a pneumatic actuator is arranged in the shell, a triggering unit is arranged in the shell, the triggering unit is connected to a PLC, a transparent indicating cover is arranged on the top surface of the shell, an arrow icon is arranged on the indicating cover, an indicating disc is fixed on the top of the rotating shaft, two opposite-direction flow direction icons are arranged on the indicating disc, the arrow icon points to the flow direction icons, the indicating disc comprises two arc plates stacked up and down, the flow direction icons are respectively positioned on the two arc plates, a first jack is arranged on one arc plate, a second jack is arranged on the other arc plate, a pin penetrates through the first jack and any second jack, and an included angle between the two flow direction icons is 90 degrees or 120 degrees. The utility model changes the flow direction icons into the three-way ball valve with different opening and closing angles by adjusting the included angle between the two flow direction icons.

Description

Three-way ball valve feedback device

Technical Field

The utility model relates to the field of a feedback device, in particular to a three-way ball valve feedback device.

Background

The valve feedback device is a field instrument for automatic valve position and signal feedback and is used for detecting and monitoring the piston movement position inside a cylinder type valve or other cylinder type actuating mechanism. The valve can be arranged on switch-type valves such as an angle valve, a diaphragm valve, a butterfly valve and the like, is used for outputting the valve state in a switch signal mode, can be conveniently connected to a field PLC or DCS system, and realizes remote feedback of the valve switch state.

The current return device used in the market only can indicate whether the valve is in an open state or in a closed state, however, for the three-way ball valve, the state of the return device is confluence or diversion, and the switch angle is 90 degrees and 120 degrees, so that the common return device cannot be suitable for the three-way ball valve.

Disclosure of Invention

The utility model aims to provide a three-way ball valve feedback device.

The utility model has the innovation point that the flow direction icons are changed, and the included angle between the two flow direction icons is adjusted at the same time, so that the three-way ball valve with different opening and closing angles is used.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a tee bend ball valve return signal ware, includes the casing, has arranged a pivot of being connected with pneumatic actuator in the casing, has arranged trigger unit in the casing, trigger unit connects to PLC, and the casing top surface is equipped with transparent indicator cap, has arranged the arrow icon on the indicator cap, and the pivot top is fixed with the indicating disk, is equipped with two opposite flow direction icons on the indicating disk, and the arrow icon is directional to flow direction icon, the indicating disk includes two arcs that stack from top to bottom, and the flow direction icon is located two arcs respectively, has arranged a jack on one of them arc, is equipped with two jacks on another arc, and a pin passes a jack and arbitrary two jacks, and the contained angle between two flow direction icons is 90 or 120.

The flow direction icon is changed to clearly express whether the three-way ball valve is in a converging or diverging state, the first jack is matched with the second jack, and the included angle between the two flow direction icons can be adjusted by 90 degrees and 120 degrees.

Preferably, the arrow icons and the flow direction icons are attached with reflective layers. When the night observation is performed, the state indicated by the reflector can be found after a light is emitted.

Preferably, the triggering unit comprises two cams which are arranged on the rotating shaft up and down, the cams are provided with extension arms, feedback screws are connected to the extension arms in a rotating mode, an included angle between the two extension arms is consistent with an included angle of the flow direction icons, a proximity switch which is sensed by the feedback screws is arranged in the shell, and the proximity switch is connected with the PLC. When the feedback screw approaches the proximity switch, the circuit is switched on, and the current state of the valve is fed back. The proximity switch is adopted, so that the problem of inaccurate feedback caused by mechanical fatigue due to a mechanical structure is solved, wherein the structure is formed by a common cam and a micro switch in a contact manner; the extension arm is arranged, and the feedback can be disconnected only by a small angle, so that the situation that the on-site valve is not opened or closed in place is avoided.

Preferably, the cam comprises an inner bushing fixedly connected with the rotating shaft and an outer bushing clamped with the inner bushing, and racks mutually clamped are arranged on the outer ring of the inner bushing and the inner ring of the outer bushing. And (5) taking down the outer bushing, and then re-clamping the outer sleeve and the inner bushing, so that the position can be adjusted.

The beneficial effects of the utility model are as follows:

1. the utility model changes the flow direction icons into the three-way ball valve with different opening and closing angles by adjusting the included angle between the two flow direction icons.

2. The proximity switch is adopted in the utility model, so that the problem of inaccurate feedback caused by mechanical fatigue due to a mechanical structure which is easy to generate due to a contact type structure of a common cam and a micro switch is avoided.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view of the structure of the cam.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

Example 1: as shown in fig. 1 and 2, the three-way ball valve feedback device comprises a shell 1, a rotating shaft 2 connected with a pneumatic actuator is arranged in the shell 1, a trigger unit 3 is arranged in the shell 1, the trigger unit 3 is connected to a PLC, the trigger unit 3 comprises two cams 3.1 which are arranged on the rotating shaft 2 up and down, the cams 3.1 comprise an inner bushing 3.11 fixedly connected with the rotating shaft 2 and an outer bushing 3.12 clamped with the inner bushing, racks 3.13 clamped with each other are arranged on the outer ring of the inner bushing 3.11 and the inner ring of the outer bushing 3.12, the cams 3.1 are provided with extension arms 3.11, feedback screws 3.2 are screwed on the extension arms 3.11, a proximity switch 3.3 sensed by the feedback screws 3.2 is arranged in the shell 1, the proximity switch 3.3 is connected to the PLC, the top surface of the shell 1 is provided with a transparent indicating cover 4, an arrow icon 4.1 is arranged on the indicating cover 4, the top of the rotating shaft 2 is fixedly provided with an indicating disc 5, two opposite-direction flow direction icons 5.1 are arranged on the indicating disc 5, the arrow icon 4.1 points to the flow direction icons 5.1, the indicating disc 5 comprises two arc plates 5.2 which are stacked up and down, the flow direction icons 5.1 are respectively positioned on the two arc plates 5.2, a first jack 5.21 is arranged on one arc plate 5.2, a second jack 5.22 is arranged on the other arc plate 5.2, a pin 5.3 penetrates through the first jack 5.21 and the second jack 5.22, an included angle between the two flow direction icons 5.1 is 120 degrees, and a reflecting layer is attached to the positions of the arrow icon 4.1 and the flow direction icons 5.1.

When the intelligent control device works, the rotating shaft 2 connected with the pneumatic actuator rotates, the cam 3.1 rotates along with the rotating shaft 2, the extension arm 3.11 of the cam 3.1, the feedback screw 3.2 triggers the proximity switch 3.3, the proximity switch 3.3 is transmitted to the PLC, and the arrow icon 4.1 points to the other arrow icon from the flow direction icon 5.1.

The described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Claims

1. The utility model provides a tee bend ball valve return signal ware, includes the casing, has arranged a pivot of being connected with pneumatic actuator in the casing, has arranged trigger unit in the casing, and trigger unit connects to PLC, its characterized in that, the casing top surface is equipped with transparent indicator cap, has arranged the arrow icon on the indicator cap, and the pivot top is fixed with the indicating disk, is equipped with two opposite flow direction icons on the indicating disk, and the directional flow direction icon of arrow icon, the indicating disk is including two arcs that stack from top to bottom, and the flow direction icon is located two arcs respectively, has arranged a jack on one of them arc, is equipped with two jacks on another arc, and a pin passes a jack and any two jacks, and the contained angle between two flow direction icons is 90 or 120.

2. The three-way ball valve annunciator of claim 1, wherein the arrow icon and the flow direction icon are provided with a reflective layer.

3. The three-way ball valve return device according to claim 1, wherein the trigger unit comprises two cams arranged on the rotating shaft up and down, the cams are provided with extension arms, feedback screws are screwed on the extension arms, an included angle between the two extension arms is consistent with an included angle of a flow direction icon, a proximity switch sensed by the feedback screws is arranged in the shell, and the proximity switch is connected with the PLC.

4. The three-way ball valve return of claim 3 wherein the cam includes an inner bushing fixedly connected to the shaft and an outer bushing engaged with the inner bushing, the inner bushing outer ring and the outer bushing inner ring each having a rack disposed thereon.