JPH081271B2 - Manual switching operation device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manual switching operation device in which a driven shaft (for example, a valve shaft of a ball valve) which is rotated by power can be manually rotated if necessary.

[0002]

2. Description of the Related Art A conventional manual operating device for an automatic valve or the like is provided directly on the drive unit itself, and when manually operating,
The drive unit also has to be manually rotated together with the driven shaft, for example, the valve shaft .

[0003]

Therefore, a large operating force is required, and different mechanisms are required depending on the type of drive unit. For example, in a piston-cylinder type single-acting pneumatic drive unit, a spring is provided for the return stroke. Therefore, a large operating force is required, and the structure of the manual operating device is complicated.

The present invention relates to a device in which the driven shaft can be separated from the drive unit by a simple operation so that the driven shaft can be lightly operated by hand.

[0005]

According to the present invention, the above problems can be solved as follows. (1) The first connector provided on the output shaft connected to the power source
And the driven shaft located coaxially with the first connector
And the second connector, which is spring-biased in the axial direction,
The actuator and slide in the opposite direction against the spring.
This allows the first connector to remain engaged with the second connector.
Equipped with an adapter that can be detached from the nectar
E, on the outer peripheral surfaces of the first and second connectors,
An axial ridge is provided and the adapter is
Splines that can be engaged with the ridges of both 1st and 2nd connectors
It has a cylindrical shape and further slides the adapter
The ring groove provided on the outer circumference of the adapter and the ring groove
The feature is that it is an eccentric cam that is engaged with the
Manual switching operation device to be considered.

(2) In the preceding paragraph, the second connector and
Disengage the adapter from the adapter and the first connector
The second connector fits when it is slid to the removal position
And a radial receiving hole into which a lever for rotating the
Guide holes are provided respectively.

(3) Provided on the output shaft connected to the power source
And a first connector that can slide in the axial direction and a first connector
It is provided on a driven shaft that is coaxial with the nectar, and
The facing surface is adapted to engage the first connector.
2 connectors and 1st connector with 2nd connector
So that the spring that urges in the axial direction to match
By sliding in the axial direction against the spring,
Release means for releasing the engagement with the nectar,
The release means, circle circumferential direction provided on the side surface of the first connector
Inclined groove that rises in a certain direction and inserts from the side
The first connector to the second connector through the inclined groove.
It also consists of an insert that slides away from the
A manual switching operation device characterized in that

(4) In the preceding paragraph, the insert is
2 Engage with both connectors.

(5) the output shaft connected to the power source,
So that it can rotate with and can slide in the axial direction
With the first connector engaged in this way and the driven shaft
It is designed to rotate and is engaged with the first connector.
The second connector that can be fitted and the first connector are axially
If it is urged to separate from the second connector,
By sliding the first connector in the axial direction.
Engagement adapted to engage the second connector
Means for connecting the engaging means to a part of the first connector.
A locking pre-abutment that abuts against and slides it in the axial direction.
A manual switching operation device characterized in that

(6) In the preceding paragraph, the second connector
In combination, an insert is provided that allows it to be rotated.

[0011]

By the action external operation, by sliding the first connector in the axial direction to release the engagement between the second connector, the driven shaft
And it can be rotated together with the second connector.

The drawings show an example in which the present invention is applied to an automatically operated ball valve. 1 to 4 show a first embodiment.

The output shaft of the drive unit (1) which is oriented in the vertical direction.
The lower end protruding part of (2) is a square shaft part (3).
First connector having a plurality of axial ridges on the outer peripheral surface (4) (5) is fastened. In the first connector (5) ,
Connected large diameter vertical cylindrical enclosure immediately below the drive unit (1) (7)
It is fitted over. The driven portion (6) is connected to the lower surface of the cylindrical casing (7) .

At an important point of the cylindrical casing (7), there is a horizontally elongated hole (8) having a central angle slightly larger than 90 ° and a long diameter in the circumferential direction, and a small diameter.
A circular support hole (9) is drilled, and territory including a support hole (9)
In-band, the inner surface of the cylinder housing (7), recessed holes facing outer side (10) is kicked set. The cylindrical housing (7) in, at a much lower dimension than the vertical ridges of the first connector to the inner side surface (5)
Has a spline (11) to (4) and meshing, and the key points of the side walls, the radial direction having a height and equal Shii diameter of the oblong hole (8)
A circular guide hole (12) is drilled and the outer surface is
A cylindrical adapter (14) with a circumferential ring groove (13)
It is provided so that it can be raised and lowered.

The adapter (14) has a lower end surface and a cylindrical casing (7).
It is urged upward by a compression spring (16) that is compressed between the bottom wall (15) and the bottom wall (15).

Then, as shown in FIG. 1, the adapter
When (14) is at the upper limit, the guide hole (12) is the horizontally long hole (8).
And the lower edge of the ring groove (13) is slightly lower than the lower edge of the support hole (9), and as shown in FIG. Pushing downward against (16), the oblong hole (8), guide hole (12), and recessed hole (1
Position each hole so that (0) and ring groove (13) can be aligned.
is there.

The lowering of the adapter (14) is provided integrally with the inner end of the operating shaft (18) with the handle (17) inserted into the support hole (9) and engages with the ring groove (13). The eccentric cam 19 (see FIG. 3) of 90 ° maximum displacement type is rotated by 90 °.

Splines on the inner surface of the adapter (14)
(11) the lower end of the driven shaft insert to the driven part (6), that a number of axial ridges on the outer peripheral surface of the valve shaft (20) a second connector secured to the upper end of (21) (22) is engaged.

The second connector (21) has the horizontally elongated hole (8).
A circular receiving hole (23) is formed in the radial direction so as to be aligned therewith.
Between the first and second connectors (5) (21), a tension spring (2
4) is installed.

As shown in FIG. 1, the adapter (1
4) is on the upper side, and the vertical ridge (4) of the first connector (5)
Mesh with the spline (11). Therefore, when the output shaft (2) is rotated 90 degrees in the forward and reverse directions with power (not shown) , the valve shaft (20) is rotated to open and close the valve element.

To rotate the valve shaft (20) by hand, the operating shaft (1
The eccentric cam (19) is rotated by 8) and the adapter (14) is pushed down via the ring groove (13). Then, the spline (11) is disengaged from the protrusion (4) of the first connector (5) and the guide hole (1)
2) Aligns with the oblong hole (8) and the receiving hole (23). Therefore,
As shown in Figures 2 and 4 , attach the lever (25) to each of these holes.
(8) (12) fitted to the (25), can be rotated second connector (21) with the adapter (14).

5 to 7 show another example.

A circle is formed on each side surface of the middle portion in the height direction.
Vertical cylindrical casing (32) with long parallel slots (31) (31) in the circumferential direction
From the upper and lower sides of the output shaft (33), respectively.
4) and the angular shaft portion (36) at the upper end of the valve shaft (35) are inserted coaxially.

The upper angular shaft portion (34) has a vertical angular hole (3) provided in the first connector (37) inserted in the upper portion of the cylindrical casing (32).
8) is slidably fitted. Circumferentially inclined grooves that rise in a certain direction on both sides of the outer peripheral surface of the first connector (37)
(39) is engraved. The lower end of the first connector (37)
It is a small-diameter square tube (40). The lower end of the tubular housing (32), slightly provided a larger size of the rectangular receiving hole (41) in the upper part, ya Ya thereunder
Second connector facing the vertical direction which is provided continuously with small dimensions of the square hole (43) (42) is inserted. The square hole (43) is formed in the valve shaft (35).
It is fitted in the square shaft portion (36) at the upper end .

The first connector (37) is the same as that of the cylindrical housing (32).
It is urged downward by a spring (44) that is compressed between the top wall and
Square tube at the lower end (40) normally is in ON fitted to the second connector (42) the upper end of the square receiving hole (41) in the.

[0026] At the upper end outside peripheral surface of the second connector (42),
A parallel surface (45) is formed vertically with the inner surface of the inclined groove (39) of the first connector (37) .

The rotation of the output shaft (33) is normally done by rotating the angular shaft (3
4), transmitted to the valve shaft (35) via the first connector (37), the second connector (42) and the angular shaft portion (36).

For manual operation, first, a wrench-shaped insert body
The tip (46) is inserted into the cylindrical housing (32) parallel slots (31) (31) within. Then, the inclined groove (39) (39) causes the first connector (37)
Is lifted and its square tube (40) is connected to the second connector (42).
It comes off from the square receiving hole (41). In this state, if the wrench-like insert body (46) is rotated laterally, the valve shaft (35) is rotated via the second connector (42).

8 to 10 show still another example.

Circumferential parallel groove holes (51) (5
1), (52) (52) vertical cylinder housing (53) from above and below, respectively, the lower end of the output shaft (54) angular shaft portion (55) and valve shaft (56)
An angular shaft portion (57) at the upper end of is inserted coaxially.

[0031] The square shaft portion of the output shaft (54) (55), the upper and lower at the center of the first connector and insert the top (58) of the tubular housing (53)
The direction square hole (59) is slidably fitted. Upper sides are formed on parallel surfaces (60) (60), and the lower end portion of the first connector (58) is to through small diameter portion (62), it has a smaller diameter square tube (61).

At the lower end of the cylindrical casing (53), the inner surface of the upper end is a square receiving hole.
The second connector (64), which is (63), is inserted , and at the center
The provided square hole (65) is fitted in the square shaft portion (57) of the valve shaft (56).

[0033] The outer side surface of the second connector (64), the cylinder housing (5
Parallel recess (64a) matching the parallel slot (52) (52) in the lower part of 3)
(64a) is provided . Outside the upper end of the second connector (64)
The side surface is a small diameter portion (66).

Coil springs (67) are fitted to the small-diameter portions (62) (66) facing each other in the vertical direction, and the upper and lower end surfaces of the coil springs (67) are
Each is in pressure contact with the step portion following the small diameter portion (62) (66).

Usually, the thin U-legs (69) (69) of the locking plate (68) as shown in FIG.
1) Insert into (51) and hold the bottom surface of the connector
By pushing down the step portion following the parallel surface (60) (60) of 8), the rectangular tube (61) at the lower end of the first connector (58) is connected to the second connector (64) as shown in FIG. Fit it into the square receiving hole (63) at the top. As a result, the rotation of the output shaft (54) can be prevented by rotating the square shaft (55), the first connector (58), the second connector (64), and the like .
And square shaft portion via (57), is transmitted to the valve shaft (56).

When the locking plate (68) is removed, the coil spring (67) causes the first connector (5
8) is raised, and the rectangular tube (61) at the lower end thereof is disengaged from the rectangular receiving hole (63) at the upper end of the second connector (64).

Therefore, the parallel slotted holes (52) (5
2) Insert the wrench-shaped insert (70) into the 2nd tip of the insert,
Fitted to the parallel recess in the outer surface of the connector (64) (64a) (64a), a second connector (64) can be rotated together with the valve shaft (56).

[0038]

The first aspect of the output shaft side can be achieved by a simple external operation.
The connector to be separated from the second connector of the driven shaft side, the driven shaft, the second connector can be rotated by hand.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional front view of a first embodiment of the present invention during power operation.

FIG. 2 is a vertical sectional front view at the time of manual operation.

FIG. 3 is a side view of an operating shaft including a handle and a plate cam.

FIG. 4 is an external view of the first embodiment of the present invention.

FIG. 5 is a vertical cross-sectional front view of the second embodiment of the present invention during power operation.

FIG. 6 is likewise a vertical sectional front view at the time of manual operation.

FIG. 7 is a perspective view showing a cylindrical casing and a spanner-shaped insert according to a second embodiment.

FIG. 8 is a vertical cross-sectional front view of the third embodiment of the present invention during power operation.

FIG. 9 is a vertical sectional front view at the time of manual operation.

FIG. 10 is a perspective view showing a cylinder casing, a locking plate, and a wrench-shaped insert in the third embodiment.

[Explanation of symbols]

(1) Drive unit (2) the output shaft (3) square shaft portion (4) protruding (5) first connector (6) follower (7) the cylindrical housing (8) Horizontal holes (9) support hole (10) Recessed hole (11) Spline (12) Guide hole (13) Ring groove (14) Adapter (15) Bottom wall (16) Compression spring (17) Handle (18) Operating shaft (19) Eccentric cam (20) Valve shaft (21) a second connector (22) protruding (23) receiving bore (24)突張Ribane (25) lever (31) parallel slots (32) the cylinder housing (33) the output shaft (34) square shaft portion (35 ) Valve shaft (36) Square shaft (37) First connector (38) Square hole (39) Inclined groove (40) Square tube (41) Square receiving hole (42) Second connector (43) Square hole (44) Spring (45) Parallel surface (46) Insert (51) (52) Parallel slot (53) Cylindrical housing (54) Output shaft (55) Square shaft (56) Valve shaft (57) Square shaft (58) 1st connector (59) Square hole (60) Parallel surface (61) Square tube (62) Small diameter part (63) Square receiving hole (64) Second connector (64a) Parallel recess (65) Square hole (66) Small diameter part (67) Coil spring (68) Locking plate (69) U-shaped leg (70) Insert

Claims (6)

[Claims] 1. A first shaft provided on an output shaft connected to a power source.
A connector and a second connector provided on the driven shaft coaxially with the first connector.
And connector, spring biased in the axial direction, engage the two connectors, and by sliding in the opposite direction against the spring, remains engaged with the second connector, as disengaged from the first connector And an adapter that is attached to the outer peripheral surface of the first and second connectors, respectively.
Direction protrusion is provided, and the adapter has a protrusion for the first and second connectors on the inner surface.
It should be cylindrical with a spline that can engage with the strip, and the means for sliding the adapter should be
The ring groove provided on the outer periphery and the ring groove that engages with this ring groove
A manual switching operation device characterized by being an eccentric cam provided . 2. The adapter is attached to the second connector and the adapter.
Slide the connector to the position to release the engagement with the first connector.
To rotate the second connector when they are aligned.
A radial receiving hole and a guide hole into which the lever can be inserted,
The manual switching operation device according to claim 1, which is provided . 3. An output shaft connected to a power source,
And a first connector that can slide in the axial direction, and a driven shaft that is positioned coaxially with the first connector,
And a second connector whose opposing surface is adapted to engage with the first connector, a spring for axially biasing the first connector to engage the second connector, and a first connector against the spring. And a releasing means for releasing the engagement with the second connector by sliding the releasing means in the axial direction, and the releasing means is provided on the side surface of the first connector.
Tilt groove that rises in a fixed direction, and insert from the side.
And the first connector to the second via the inclined groove.
Insert and slide it away from the connector.
A manual switching operation device characterized in that 4. The insert is engaged with both the first and second connectors.
The manual switching operating device according to claim 3 , wherein the manual switching operating device is adapted to fit . 5. A first connector engaged with an output shaft connected to a power source so as to rotate therewith and slidably in an axial direction, and to rotate with a driven shaft. A second connector that can be engaged with the first connector, a spring that biases the first connector in the axial direction and separates it from the second connector, and the first connector in the axial direction. by sliding, a engagement means adapted to engage with the second connector
And engaging the engaging means with a part of the first connector,
A locking plate that slides this in the axial direction
Manual switching operation device characterized by. 6. A second connector is engaged and rotated.
6. The manual switching operation device according to claim 5, further comprising an insertable body .