JPH0547651U - Portable electric valve operating machine - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a portable electric valve operating machine that is small, lightweight and easy to connect with a valve. [Structure] A socket 10 which can be fitted into a valve rod 12 of a valve 11 is attached to a shaft 8 which is an output shaft of a gear motor 4 inside a casing. Also, around the socket 10,
The insertion pin 16 that can be inserted into the bolt hole 25 of the flange portion 24 of the valve 11 is provided vertically. [Effect] The equipment cost related to the valve operating mechanism can be significantly reduced.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a portable electric valve operating device used when opening and closing a valve that restricts the flow rate of liquid or gas.

[0002]

[Prior Art]

 As fine control of fluids is advanced, many small-diameter valves are used for building air conditioning, etc., and most of them use manual valves because they are rarely opened and closed. Due to the lack of manpower, opening and closing them manually requires a lot of work, albeit temporarily.

However, if all are electrically operated, the labor of the operator is reduced, but the cost for manufacturing the valve operating mechanism has not been inexpensive. Moreover, in the case of valves that are used infrequently, it may be a waste of equipment.

[0004]

[Problems to be solved by the device]

 The object of the present invention is to significantly reduce the equipment cost related to the valve operating mechanism, especially in a pipeline using a large number of manual valves, and to open and close the valve during test operation and the valve during maintenance. (EN) Provided is a portable electric valve operating device which is capable of greatly reducing the labor required, and which is small in size and lightweight and has a one-touch connection with a valve.

[0005]

[Means for Solving the Problems]

 The gist of the present invention, which has solved the above problems, is as follows: 1) Inside a casing provided with a handle, a rotary driving means using an electric motor having an operating portion outside the casing is arranged, and a tip end portion of an output shaft of the rotary driving means. A socket that can be fitted to the valve operation valve rod is attached to the socket, the socket can be projected from the bottom of the casing, and can be loosely inserted into the bolt hole of the valve flange on the circumference of the bottom of the casing centered on the socket. Portable electric valve operating machine characterized by having a plurality of insertion pins with different outer diameters protruding at predetermined intervals 2) Inserting the insertion pins into the bolt holes of the flange part of the valve, and the socket into the valve rod A portable electric valve operating machine according to claim 1, further comprising: a lock mechanism for fixing the casing to the flange portion in a state of being fitted to the portable electric valve operating device 3). 4. The portable electric valve operation according to claim 1, further comprising: a control unit that controls the operation of the rotation drive unit, and a display unit that displays according to the rotation angle of the output shaft. There is an opportunity.

[0006]

[Action]

 In the portable electric valve operating device of the present invention, a rotary driving means using an electric motor having an operating portion outside the casing is arranged inside a casing provided with a handle, and the output shaft end portion of the rotary driving means is arranged. A socket that can be fitted to the valve operating valve rod is attached to the socket, the socket can be projected from the bottom of the casing, and can be loosely inserted into the bolt hole of the valve flange on the circumference of the bottom of the casing centered on the socket. It has a plurality of insertion pins with different outer diameters and is projected at a predetermined interval.When using it, simply insert the insertion pins into the bolt holes in the flange part of the valve box, and The socket is designed so that the socket can be fitted at the same time, facilitating the connection to the valve.

Further, by inserting the insertion pin into the bolt hole, it is possible to prevent the positional displacement of the valve operating device and at the same time, to receive the reaction force due to the opening and closing of the valve.

[0008]

【Example】

 Examples will be described with reference to the drawings. 1 is a front cross-sectional view showing an embodiment, FIG. 2 is an explanatory view of the same main part, FIG. 3 is a cutaway view of the same main part, and FIG. 4 is a sectional view taken along the line AA of FIG.

The portable electric valve operating device 1 according to the present embodiment includes a rechargeable battery 3 and a DC gear motor 4 inside a box-shaped casing 2 having a handle 23. The gear motor 4 can be operated to move forward / backward and stop with a switch 5 arranged on the outer surface of the casing 2. Reference numeral 26 is a display lamp that indicates normal movement / reverse movement.

The rotation of the gear motor 4 is transmitted from the gear 6 to the gear 7 and is decelerated so as to obtain a predetermined torque and rotation speed. The gear 7 is fixed to a vertical shaft 8, which is rotatably supported by a bearing 9. A socket 10 is attached to the lower end of the shaft 9, and the socket 10 has an inner diameter selected so that the socket 10 can be fitted to the valve rod 12 of the valve 11 and is vertically downward from the bottom surface of the casing 2. It is protruding. That is, when the gear motor 4 is rotationally driven, the socket 10 protruding on the bottom surface of the casing is gently rotated at a predetermined speed.

On the other hand, an opening degree indicating plate 13 is attached to the upper end portion of the shaft 8 and is configured to support the opening degree of the valve by using a stationary pointer 14. Further, a window 27 is provided in the casing 2 at a portion above the opening indicating plate 13, so that the opening can be easily confirmed. Further, in order to limit the excessive movement of the valve element in the valve when the valve is opened and closed, a limit switch 15 for limiting the rotation angle range of the shaft 8 is provided in this embodiment.

On the bottom surface of the casing 2, four insertion pins 16 are vertically provided centering on the socket 10. The insertion pin 16 has a tapered columnar shape and has a flange surface 17 formed at a predetermined position. The flange surface 17 is located below the lower bottom surface of the socket 10 by a predetermined distance, and when connecting the portable electric valve operating device 1 to the valve 11, the flange surface of the insertion pin 16 is connected. The portable electric valve operating device 1 is supported by 17 so as not to interfere with the rotation of the valve rod 12 and the socket 10.

In the present embodiment, a lock mechanism for fixing the position of the portable electric valve operating device 1 is provided, and the portable electric valve operating device can be used sideways depending on the state of the valve. The lock mechanism will be described with reference to FIGS.

A cylinder 18 is vertically provided below a bottom surface of the casing 2, a shaft 19 is loosely inserted in the cylinder 18, and the shaft 19 is supported by a spring 20 in an upward direction. A horizontally rotatable hook 21 is attached to the lower end of the shaft 19, and the tip of the hook 21 is angled in a chevron shape. An operating lever 22 is provided at the rear end of the hook 21.

When the portable electric valve operating machine 1 is used, if the insertion pin 16 is inserted into the bolt hole 25 of the upper flange portion 24 of the valve 11, the socket 10 can be fitted to the valve rod 12. It is done automatically. After that, the hook 21 is brought into contact with the lower surface of the flange portion 24 of the valve 10 by the operation lever 22 and rotated by 90 °. At this time, since the hook 21 is formed in a mountain shape, it can be smoothly inserted into the lower surface of the flange portion 24. Further, since the hook 21 is biased upward by the spring 20, the flange portion 24 is in a state of being pressed from the lower surface. Therefore, the portable valve operating device 1 is fixed to the valve 11 by sandwiching the flange portion 24 of the valve 11 with the flange surface 17 of the insertion pin 16 and the hook 21.

In this state, when the switch 5 is operated and the gear motor 4 is driven, the socket 10 attached to the shaft 8 which is the output shaft of the gear motor 4 rotates, and the valve 11 is opened and closed gently. At this time, the reaction force of the torque acting on the valve rod 12 acts on the portable electric valve operating device 1, but the insertion pin 16 inserted into the bolt hole 25 receives this, so that the valve operating device is operated. It does not hurt.

The present invention is not limited to the above-described embodiments, but may be configured using a general commercial AC power source. In that case, a transformer and a rectifier may be provided instead of the battery. It is also easy to apply magnetic force to the lock mechanism.

[0018]

[Effect of the device]

 Since the present invention is configured as described above, it is compact and lightweight, easy to carry, and easy to connect to a valve, which is very easy to operate. Further, since it is not necessary to provide an opening / closing mechanism for each valve, the equipment cost can be significantly reduced, especially in a pipeline using many valves. Also, by selecting the placement of the insertion pin and the diameter of the socket, it can be adapted to valves of all sizes.

[Brief description of drawings]

FIG. 1 is a front sectional view showing an embodiment.

FIG. 2 is an explanatory view of a main part showing an embodiment.

FIG. 3 is a cutaway view of an essential part showing an embodiment.

4 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 1 Portable Valve Operating Machine 2 Casing 3 Battery 4 Gear Motor 5 Switch 6 Gear 7 Gear 8 Shaft 9 Bearing 10 Socket 11 Valve 12 Valve Rod 13 Opening Indicator Plate 14 Pointer 15 Limit Switch 16 Insertion Pin 17 Flange Surface 18 Cylinder 19 Shaft 20 Spring 21 Hook 22 Control lever 23 Handle 24 Flange portion 25 Bolt hole 26 Indicator lamp 27 Window

Claims (3)

[Scope of utility model registration request] 1. A casing provided with a handle is provided with rotary driving means using an electric motor having an operating portion outside the casing, and a valve operating valve rod is fitted to a tip end of an output shaft of the rotary driving means. Attachable socket, project the socket from the bottom of the casing, and insert a pin on the bottom of the casing around the socket that has an outer diameter that allows loose insertion into the bolt hole of the flange of the valve. A portable electric valve operating machine characterized by having a plurality of protrusions arranged at intervals. 2. A lock mechanism for fixing the casing to the flange portion while inserting the insertion pin into the bolt hole of the flange portion of the valve and fitting the socket to the valve rod. Item 1. A portable electric valve operating device according to Item 1. 3. A power supply for the rotation driving means and a control means for controlling the operation of the rotation driving means, and further comprising display means for displaying according to the rotation angle of the output shaft. Alternatively, the portable electric valve operating device described in 2.