Unlock instant, AI-driven research and patent intelligence for your innovation.

Handle with torque limiter and fluid controller having the handle

A handle and torque-limiting technology, which is applied in the field of fluid controllers, can solve unavoidable problems and achieve the effects of reducing manufacturing costs, long-term stable fluid control, and reducing wear and damage

Inactive Publication Date: 2007-09-26
FUJIKIN INC
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, there is no way to protect the valve diaphragm of the fluid controller from damage caused by excessive torque when using the ratchet mechanism

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Handle with torque limiter and fluid controller having the handle
  • Handle with torque limiter and fluid controller having the handle
  • Handle with torque limiter and fluid controller having the handle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The torque limiting handle according to the invention can be used in devices having an operating mechanism which can be moved vertically by rotating the handle. This torque limiting handle is suitable for any device that needs to control torque (or needs to prevent excessive torque). The application in a fluid controller is presented here as a typical application, but the application of the torque limiting handle is not particularly limited thereto.

[0032] Figure 1 is a top view of a torque limiting handle according to the present invention. This figure omits the upper cover of the handle. Figure 2 is a longitudinal cross-sectional view of a fluid control having a handle (as shown in Figure 1).

[0033] As shown in Figure 2, the fluid controller (1) according to the present invention comprises: a valve body (2), which has a channel (21) formed therethrough; a valve membrane (3), which is arranged to open and close the channel (21); bonnet (4), which is arranged to ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention aims to provide a handle with a torque limiter and a fluid controller with the handle, which has the torque limiter. A flow passage can be opened / closed by the torque limiter through a specified tightening force, and smaller abrasion and damage can be caused even repeatedly using the invention, by which the flow velocity can be chronically and stably controlled, the opening of the flow passage can be safely carried out, and the manufacturing cost can be reduced. The torque limiter with handle comprises a handle body (62) and a cover (61). The handle body (62) is connected with an operating mechanism (5), vertically shifting a valve element through rotation operation, and the cover (61), consisting of a ratchet (8) and a spring (9), which rotates along a pivot (81), is matched with the handle body, which comprises a ratchet wheel (7). A force is provided by the spring to the ratchet to drive the ratchet rotate in a certain direction, so that the ratchet is led to be meshed with the teeth on the circumference of the ratchet wheel. The spring receive the pressure from the ratchet to retract in a retracting direction only when the cover is rotated in one direction, so that the ratchet is allowed to rotate to an angle, at which the meshing between the ratchet and the teeth are released, in case the pressure exceeds a preset value.

Description

technical field [0001] The invention relates to a torque limiting handle and a fluid controller with the handle. In particular, the invention relates to a handle with a torque limiting function for protecting the diaphragm from excessive torque. The present invention also relates to a fluid control that uses a constant tightening force to open and close the handle. This protects the valve membrane in the fluid controller from deformation due to excessive tightening under closing operation, so that the damage or wear of the valve membrane is very small. Therefore, the flow rate can be controlled stably over a long period of time using the fluid controller. Background technique [0002] Diaphragm valves are commonly used to control fluid flow in chemical plants handling corrosive fluids or high purity fluids. [0003] As an example, the diaphragm valve shown in Figure 5 includes: a valve body (A), which has a flow channel (A-1); a diaphragm (B), which contacts and / or separa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/60F16K7/16F16K31/50
CPCG05G1/12F16K31/60F16K31/50G05G1/10F16K7/16
Inventor 大道邦彦赤本久敏
Owner FUJIKIN INC