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flow control valve

A technology of flow control valve and flow path, which is applied in the direction of lifting valve, valve device, mechanical equipment, etc., and can solve the problems of enlarged operating part size, increased component cost, and configuration restrictions.

Active Publication Date: 2020-09-29
株式会社日本碧士克
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The flow rate control valve described in Patent Document 1 is a complicated mechanism in order to display the number of rotations of the operation part on the display window.
As described above, if the display mechanism is complicated, the number of parts will increase, the cost of parts will increase, the man-hours for assembly will increase, and the size of the operation unit will increase.
[0008] If the size of the above-mentioned operation part becomes larger, it is necessary to secure a predetermined size of arrangement space, so that there is a restriction on the arrangement
For example, it becomes more difficult to replace from a pre-programmed flow control valve that does not show the type of function

Method used

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no. 1 approach

[0035] Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings. The flow rate control valve 1 of the present embodiment is a member having an L-shaped pipe body (elbow). figure 1 It is a perspective view (schematic diagram) showing an example of the flow rate control valve 1 of the first embodiment. figure 2 yes figure 1 A cut-away perspective view of the flow control valve 1 is shown. image 3 will be figure 1 It is a structural development diagram showing the components of the flow control valve 1 expanded. In addition, in all the drawings for describing the embodiment, members having the same function may be assigned the same reference numerals, and overlapping description thereof may be omitted.

[0036] The flow rate control valve 1 of the present embodiment is, for example, assembled (connected) to a flow path through which a pressurized fluid (for example, compressed air) flows through an external air cyli...

no. 2 approach

[0059] The flow rate control valve 1 of the present embodiment is a member having an I-type pipe body (union in Japanese). In the second embodiment, the description will focus on points different from the first embodiment.

[0060] Figure 13 It is a perspective view (schematic diagram) showing an example of the flow rate control valve 1 of the second embodiment. Figure 14 will be Figure 13 It is a structural development diagram showing the components of the flow control valve 1 expanded. The flow control valve 1 of the present embodiment forms a flow path by combining a tubular first housing 6 and a tubular second housing 8 to form an I-type pipe body (union joint). The second housing 8 is made of resin such as PBT or POM, and is provided with a bushing built-in joint 8b for a thermoplastic resin pipe at the end.

[0061] Inside the casings 6 and 8, a needle valve element 5 for adjusting the opening degree of the flow path is provided. exist Figure 14 In the example ...

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Abstract

A flow control valve capable of displaying the number of rotations of an operating part through a display window with a simple structure and capable of being miniaturized. The flow control valve (1) is configured to include: a needle valve element (5) which is rotatably supported in a casing (6) centering on a first rotating shaft (P1) to adjust the opening of the flow path; There is a connecting part (21) connected with the needle valve core (5), and is supported by the casing (6) to be able to rotate around the first rotating shaft (P1) as the center of the operating part (2); and is supported to be able to rotate around the second rotating shaft (P2) is the center and the display part (3) rotates along the inner surface of the casing (6), and an external gear ( 25), the display part (3) is formed with an internal gear (35) meshing with the external gear (25) around the second rotating shaft (P2), at the position where the operation part is rotated N times from the starting point, the first character ( The text representing "N" in 41) is aligned with the first display window (61).

Description

technical field [0001] The present invention relates to a flow control valve, and more specifically relates to a flow path control valve capable of displaying the numerical value of the opening of the flow path. Background technique [0002] Flow control valves are small devices that restrict the flow of fluid and control the speed of actuators, and are often used in automatic equipment lines that assemble mechanical devices, electronic devices, and the like. The flow control valve is provided with a spool for adjusting the opening degree of the flow path, and a rotary operation part (operation grip part) interlocked with the spool. In recent years, there has been an increasing demand for a flow rate control valve having a structure in which the opening degree of the flow path can be confirmed by displaying the number of rotations of the operation portion through the display window. [0003] Conventionally, there is known a flow control valve having a structure in which an ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K37/00F16K1/36
CPCF16K1/36F16K37/0016
Inventor 上田一廣
Owner 株式会社日本碧士克
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