JPH0564586U - Electric cock device - Google Patents

Abstract

(57) [Summary] [Purpose] There is no deviation in the cock opening and closing position,
It is possible to maintain an accurate open / close position and to reduce the size and cost of the device. [Structure] Both ends of the cock turning shaft 2 are surrounded by spring members 6 that are formed by forming parallel spring pieces 4 and 5 by bending both ends in parallel with the cock turning shaft 2 protruding from the cock body 1, and the opposite sides are A substantially square cam plate 7 that fits between the parallel spring pieces 4 and 5 of the spring member 6 is attached to a rotation shaft 9 of a motor 8 that is directly connected to the cock rotation shaft 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electric cock device used for opening and closing the flow path of the liquid in, for example, a power sprayer that sprays a disinfectant solution, liquid fertilizer, water or the like on vegetables or the like cultivated in a greenhouse or the like.

[0002]

[Prior Art]

 In addition to spraying disinfectants, liquid fertilizers, water, etc. on vegetables cultivated in vinyl greenhouses, etc., workers carry a backpack-type power sprayer on their backs, and recently, an automatic power sprayer called a robot sprayer. Are provided (for example, see Japanese Utility Model Publication No. 1-11333).

The robot sprayer performs liquid spraying work while automatically traveling in the passage between adjacent ridges, and when the liquid spraying work in the passage is completed, the robot sprayer automatically moves to the passage between the adjacent ridges to spray liquid. The work is continued and the liquids are automatically sprayed on the vegetables grown in each ridge one after another.

[0004]

[Problems to be solved by the device]

For example, when performing the liquid spraying work using the robot sprayer, the liquid sprayer is pressurized to a high pressure of about 40 kg / cm ² with a power sprayer arranged outside the vinyl house or the like. It is necessary to pressure feed to the nozzle, and moreover, it is necessary to accurately open and close the liquid pressure feed path.

Therefore, a remote-controlled electric cock device is used. However, the conventional electric cock device causes a shift in the opening / closing position of the valve body of the cock due to a change in rotational torque, inertia of the motor, etc. There were problems such as phenomena and changes in flow rate.

The present invention has been made in view of the above circumstances, and provides an electric cock device aiming to accurately open and close the liquid pressure feeding path, and further downsizing and cost reduction of the device. The purpose is to

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention encloses both sides of the cock rotation shaft with a spring member that has parallel spring pieces that are bent in parallel with the cock rotation shaft protruding from the cock body. And a substantially square cam plate that fits between the parallel spring pieces of the spring member is attached to the rotation shaft of the motor that is directly connected to the cock rotation shaft.

[0008]

[Action]

 According to the present invention, one of opposite sides of a substantially square cam plate 7 fixed to the rotating shaft 9 of the motor 8 is, for example, between the parallel spring pieces 4 and 5 of the spring member 6 fixed to the cock body 1 side. The valve body (not shown), which is clamped and stabilized, blocks the liquid pressure feed passage 15 in a closed state, for example.

Next, when the motor 8 is driven for a predetermined time, the cam plate 7 attached to the rotary shaft 9 of the motor 8 pushes the parallel spring pieces 4 and 5 at their corners 7a to rotate them. At the same time, the cock rotation shaft 2 directly connected to the rotation shaft 9 of the motor 8 is rotated, and when the valve body (not shown) is rotated 90 degrees, the other opposite side of the cam plate 7 has the spring member 6 It is sandwiched by the parallel spring pieces 4 and 5 and the rotation of the cock rotation shaft 2 is stopped, the cock is opened, and the high-pressure liquid is supplied to the spray nozzle (not shown).

That is, according to the present invention, when the motor 8 is driven for a predetermined time and stopped, the cam plate 7 is clamped and held by the parallel spring piece portions 4 and 5 of the spring member 6 at the position where the cam plate 7 sequentially rotates 90 degrees. The open / close position of the cock does not shift.

Further, according to the present invention, a commercially available standard motor can be used as it is, the rotary shaft 9 of the motor 8 and the cock rotary shaft 2 can be directly connected, and a spring having parallel spring pieces 4 and 5 can be used. Since it is only necessary to prepare the member 6 and the cam plate 7, the size and cost of the device can be reduced.

[0012]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of an electric cock device portion of a power sprayer as an embodiment of the present invention, and FIG. 2 is an exploded perspective view thereof.

The ball cock body 1 is a power sprayer having a tubular shape, one end of which is provided on the side of a spray nozzle (not shown) provided in a body (not shown) of a robot sprayer, and the other end of which is separately provided. (Not shown).

A valve body (not shown) having a liquid circulation hole is housed in the ball cock body 1, a cock rotating shaft 2 is connected to the valve body, and the cock rotating shaft 2 is connected to the ball. It is made to project from the shaft boss portion 1a of the cock body 1 and is rotatable.

Further, the shaft boss portion 1 a of the ball cock body 1 has an insertion hole 3 for the shaft boss portion 1 a, and both ends thereof are bent in parallel with the cock rotation shaft 2 so that the cock rotation shaft 2 can be bent. A spring member 6 that forms parallel spring piece portions 4 and 5 that surrounds both sides of 2 is fitted.

As the spring member 6, a stainless steel plate or the like having an appropriate length is used, and in the illustrated embodiment, a curved portion 14 is formed so that its substantially central portion fits the upper surface portion of the ball cock body 1. Then, it is attached to the ball cock body 1 and is fixed by being sandwiched by members described later.

Reference numeral 7 denotes a cam plate fixed to a rotary shaft 9 of an electric motor 8 which is directly connected to the cock rotary shaft 2, and is made of a stainless steel plate or the like. It is formed in a substantially square shape that fits between 5 and 5.

Here, the term “substantially square” means a square with rounded corners 7 a.

The cam plate 7 rotates integrally with the rotary shaft 9 of the motor 8 (further, the cock rotary shaft 2 and the valve body). In the illustrated embodiment, the motor 8 is located at the center of the cam plate 7. The square shaft portion 9a formed on the rotary shaft 9 is formed integrally with a square hole 10 to which the square shaft portion 9a fits.

Further, in the embodiment shown in the drawings, the direct connection between the cock rotation shaft 2 and the rotation shaft 9 of the motor 8 and the angular shaft portion 9a at the tip of the rotation shaft 9 of the motor 8 are adapted to the upper surface of the cock rotation shaft 2. Although the square hole 11 is provided, the screw connection may be made if necessary.

In the figure, reference numeral 12 is a deceleration portion of the motor 8, and 13 is a buffer washer, which is formed in a ring shape using a material such as vinyl and is interposed between the spring material 6 and the cam plate 7.

In the electric cock device of the present invention having the above-mentioned configuration, the spring member 6 is fixed to the ball cock body 1 side so as not to rotate, and the cam plate 7 is fixed to the rotation shaft 9 of the motor 8 so as not to rotate. Be kicked.

The cock rotation shaft 2 with the valve body fully closed and the rotation shaft 9 of the motor 8 are directly connected, and the cam plate 7 is fitted between the parallel spring pieces 4 and 5 and set. do it.

In the electric cock device of the present invention assembled as described above, the cam plate 7 is always clamped and stabilized between the parallel spring pieces 4 and 5 of the spring member 6, and the valve body (not shown) is fully closed. The liquid pressure feed path 15 is shut off.

Next, when the motor 8 is driven for a predetermined time, the cam plate 7 is rotated integrally with the rotating shaft 9 of the motor 8, and the corners 7 a of the cam plate 7 are parallel spring pieces 4 of the spring member 6. And 5 are temporarily spread out and rotated, and at a position rotated by 90 degrees, they are reliably stopped by the clamping force of the parallel spring piece portions 4 and 5.

As a result, the valve body (not shown) is also rotated at a right angle to be in a fully opened state, the liquid pressure supply passage 15 is communicated, and the necessary liquid is supplied to the spray nozzle (not shown).

After that, if the motor 8 is sequentially driven as needed, closing and opening of the cock are repeated in sequence.

As described above, in the present invention, by providing the spring member having the parallel spring piece portion and the cam plate, the cock can be reliably stopped at the predetermined opening / closing position.

[0030]

[Effect of the device]

 According to the present invention, the cock can be reliably stopped at the predetermined opening / closing position, the commercially available standard motor is used as it is, and only the spring member and the cam plate are provided. Can be promoted.

[Brief description of drawings]

FIG. 1 is a perspective view of an electric cock device portion of an embodiment of the present invention.

FIG. 2 is an exploded perspective view of FIG.

[Explanation of symbols]

 1 Cock Main Body 2 Cock Rotating Shaft 4, 5 Parallel Spring Piece 6 Spring Member 7 Cam Plate 8 Motor 9 Rotating Shaft

Claims (1)

[Scope of utility model registration request] 1. Both sides of the cock turning shaft 2 are surrounded by spring members 6 having parallel spring pieces 4 and 5 formed by bending both ends in parallel with the cock turning shaft 2 protruding from the cock body 1.
The opposite sides are parallel spring piece portions 4 and 5 of the spring member 6, respectively.
The substantially square cam plate 7 that fits between the cock rotation shaft 2 is provided.
An electric cock device which is attached to a rotary shaft 9 of a motor 8 which is directly connected to the electric cock device.