JPS62177385A - Solenoid valve device - Google Patents

Abstract

PURPOSE:To cope with a defect in an electric circuit by moving a block at the time of electromagnetic control not to move an inner case, and conducting its reverse operation at the time of manual operation. CONSTITUTION:An input passage (a) and an output passage (e) are formed on an outer case 1, and an inner case 3 is provided with two passages (b), (d) which communicate with the input passage (a) and the output passage (e) when the relative position of the inner case 3 and the outer case 1 is the first position. A block 5 is provided with a passage (c) which communicates with the passages (b), (d) of the inner case 3 when the relative position of the block 5 and the inner case 3 is the second position. The block 5 is controlled by an electromagnetic device 13, and the inner case 3 can be controlled by manual operation means comprising a link 8 and a lever 9. Accordingly, even if a defect is caused in an electric circuit, manual operation can cope with the situation.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a valve structure of a solenoid valve for controlling transfer of pressure fluid. In particular, the present invention relates to a solenoid valve that can control pressure fluid transfer by manual operation when an electric circuit is not operating.

〔overview〕

The present invention provides an electromagnetic valve device including an electromagnetic device and a valve device driven by the electromagnetic device, in which a valve body portion of the electromagnetic valve includes an outer case, an inner case, and an inner case of the inner case that slide against each other. The block position and the inner box position are controlled by an electromagnetic device and a manual operation means, respectively, so that the transfer of pressure fluid can be controlled manually even when the electric circuit is not operating. .

[Conventional technology]

An electromagnetic valve device is used as a transfer control means when transferring pressurized fluid from a supply source such as a pressure tank or a fluid pumping means to a supplied part such as a pipe or a pressure fluid device.

The opening/closing operation or switching operation of this electromagnetic valve device is performed by displacing the position of the valve body provided inside the outer case using an electromagnetic device activated by an electric signal.

[Problems to be Solved by the Invention] However, as described above, the operation of the valve body of the solenoid valve is driven by the electromagnetic attraction means of the electromagnetic device connected to the valve body, so in the unlikely event that the electromagnetic device If the electrical circuit including the solenoid valve becomes inoperable, the fluid transfer control operation of the solenoid valve may stop.

In particular, when a solenoid valve device is used to control the speed change of a clutch and transmission of an automobile, even if an electric circuit becomes inoperable, it is necessary to compensate for this by manual operation.

An object of the present invention is to solve this problem and provide a solenoid valve device that can be manually controlled even when the electric circuit is not operating.

[Means for solving problems]

The present invention provides a solenoid valve device comprising an outer box, an inner box that slides on the inner wall of the outer box, and a block that slides on the inner wall of the inner box. A passage and an output passage are formed, and the inner box has at least two passages penetrating through its walls and communicating with the input passage and the output passage when the inner box is in a first predetermined position relative to the outer box. is formed in the block, and a passage is formed in the block that connects the passage of the inner box when the relative position with the inner box is at a second predetermined position, and the relative position of the outer box and the inner box is a first spring means that applies a force so that the inner box and the block are in a position other than the second predetermined position; The present invention is characterized by comprising a spring means, an electromagnetic device for displacing one position of the block or the inner box, and a manual operating means for displacing the other position of the block or the inner box.

The outer box can have two passages and can be used as an on-off valve.

Alternatively, a switching valve can be constructed in which the inner case has three passages and the outer case has two input or output passages.

[Effect]

During regular electromagnetic control operations, for example, the block moves, but the inner box does not move. Conversely, during manual operation, the middle box is moved, but the block is not moved.

In other words, in the stationary position, the fluid passage of the inner box is connected to the respective passages of the outer case and the block, and in the moving position of the inner box, it is not connected to the fluid passage of the block in the stationary position, but the passage of the outer case is connected to the passage of the outer case. If arranged in a bypass manner, fluid transfer can be controlled in both normal and manual operations.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a cross-sectional explanatory view of the first embodiment of the present invention, in which an outer case 1 is provided with one input passage a and one output passage e, and the input passage a is supplied with pressure oil from a supply source not shown. A hydraulic actuator (not shown) is connected to the output passage e, which is an on-off valve that outputs pressure oil in the direction of arrow S.

Here, the features of the present invention include: an outer box 1, an inner box 3 that slides on the inner wall of the outer box 1, and a block 5 that slides on the inner wall of the inner box 3; ) An input passage a and an output passage e are formed in the outer box 1 and pass through the walls thereof, respectively. When the block 5 is in a predetermined position, two passages A and D are formed which communicate with the input passage a and the output passage e, respectively; (4) When the block 5 is in a second predetermined position relative to the China 3 , a passage C is formed which connects the passages A and D of the China 3, and (5) a first spring means biases the relative position of the outer box l and the China 3 to a first predetermined position. a spring 6; (6) a spring 7 which is a second spring means biasing the relative position of the China 3 and the block 5 to a position other than a second predetermined position; and (7) normal operation of the block 5. (8) a part of China 3 for displacing China 3; The rod 3a is provided with a manual operating means consisting of a link 8 and a lever 9.

In the above explanation, the relative position of the outer case 1 and the China 3 is at the first predetermined position. In FIG. 3 showing the position of the valve in the communication state at the time, the China 3 is pushed to the right by the spring 6, and the right end of the cover 4 of the China 3 is in the position closest to the right inner surface of the outer case 1. When the relative position of the block 5 and the China 3 is at the second predetermined position, it means that the China 5 is in a position where the spring 7 is compressed by the electromagnetic device and displaced to the right in FIG.

Next, the operation of this embodiment will be explained with reference to FIGS. 2 and 3 and FIG. 4, which shows the position of the communicating valve during manual operation of this embodiment.

In FIG. 2, since the outer box 1 and the China 3 are in the first predetermined position due to the spring 6, the input passage a communicates with the passage 2, the output passage e communicates with the passage d, but the block 5 Since it is held at a position other than the second predetermined position by the spring 7, when it passes, it is not connected to the passage C, so the input passage a and the output passage d are disconnected. Even if pressure oil is input to the input passage a, it is not sent out from the output passage e, resulting in a non-operating state.

In FIG. 3, the block 5 is displaced to the right by the electromagnetic coil 13 via the plunger 5a as shown by the arrow B to assume a second predetermined state, and the passage C of the block 5 is the same as the two passages in China. Since input path a and d are connected, input path a
is connected to the output passage e through each passage S, c, and d, and is indicated by the arrow R.
The input pressure oil is sent to a hydraulic actuator (not shown) as shown by arrow S, and becomes linked for normal operation.

If the electromagnetic device does not operate, the block 5 cannot be displaced and will not be in an interlocked state. At this time, by operating the lever 9 shown in FIG. 1 and pulling the rod 3a to the left as shown by the arrow A through the link 8, displacing the China 3, the communication state shown in FIG. It can be done. That is, as shown in FIG. 4, the passage in China 3 is not connected to passage C in block 5, but the lower part of passage d directly connects input passage a and output passage e of outer box l, so that the pressure Oil transfer takes place.

The second embodiment of the present invention has three passages (a, e, h) in the outer box.
It is a switching valve type with three Chinese passages (b, d, g) and two block passages (c, f).

In FIG. 5 showing the position of the valve in the non-conducting state during normal operation of this second embodiment, the passage a in the outer case 21 is for input;
Both passages e and h are used for output. aisle a
Connect a pressure air tank (not shown) to , connect an air cylinder (not shown) to passage e, and use arrow Ex as an exhaust port.
It is opened to the atmosphere like this.

In FIG. 5, pressurized air reaches passage C in block 25 in the direction of arrow R through passage a and passage in China 23, but passage C does not communicate with any passage, so pressure air is transferred. do not. On the other hand, the passages d and g of the inner box 23 communicate with the passages e and h of the outer case 21, respectively, and are connected by the passage r in the block 25, so that the passages e and h are in communication. Therefore, if there is residual air in the air cylinder (not shown), it is input as shown by arrow S and released into the atmosphere as shown by arrow Ex.

In this embodiment, as shown in FIG. 6, if the block 25 is displaced to the right as shown by the arrow B via the plunger 25a by an electromagnetic device (not shown), the passage C of the block 25 is connected to the middle box 2.
Since the passages 3 and d are connected to each other, the input of pressurized air shown by the arrow R goes through the respective passages a, b, c, d and e, as shown by the arrow S in Fig. 6. Output to the outside air cylinder. At this time, since the passage f of the block 25 blocks communication with the passage, there is no leakage from the air cylinder to the atmosphere.

In this way, the second embodiment functions as a switching valve.

In this embodiment, when manual operation is performed, the inner box 23 is displaced to the left as shown by the arrow A via the rod 23a, as shown in FIG.
Since the passage which is connected to the JTl passage e and is an exhaust port is blocked, it is in a communicating state as in FIG. 6 above.

In the above two embodiments, the electromagnetic device displaces the block and the manual operating means displaces the inner box, but even if these are the opposite combinations, the present invention can be carried out in the same way. be able to.

〔Effect of the invention〕

As explained above, according to the present invention, even if the electromagnetic device of the solenoid valve device stops working, the opening/closing operation and switching operation of fluid transfer can be performed by manual operation, so when the present invention is applied to the fluid drive unit of an automobile This has the effect of allowing emergency measures to be taken for vehicle operation even if a malfunction occurs in the electrical circuit.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional explanatory diagram of a first embodiment of the present invention. FIG. 2 is a diagram showing the position of the valve in an abnormal state during normal operation of the above embodiment. FIG. 3 is a diagram showing the position of the valve in the communication state during normal operation of the above embodiment. FIG. 4 is a diagram showing the position of the valve in the communication state during manual operation of the above embodiment. FIG. 5 is a diagram showing the position of the valve in an abnormal state during normal operation of the second embodiment of the present invention. FIG. 6 is a diagram showing the position of the valve in the communication state during normal operation of the above embodiment. FIG. 7 is a diagram showing the position of the valve in the communication state during manual operation of the above embodiment. 1.21...Outer box, 2.4.24...Cover, 3.
23... Nakabako, 3 a, 23a... Rod, 5.
25...Block, 5a, 25a...Plunger, 6.7.27...Spring, 8...Link, 9...
・Lever, 12... Core, 13... Electromagnetic coil, A
,BXR,S,Ex=-arrow,aXb,,c. d, e, f, g, h...Aisle. Patent applicant: Hino Motors Corporation. Agent: Naotaka Ide, patent attorney.尤2 Figure 1 Embodiment regular communication y Figure 13 - Embodiment manual communication M 4 Figure

Claims (1)

[Claims] 1) An outer box, an inner box that slides on the inner wall of the outer box, and a block that slides on the inner wall of the inner box, and each of the outer boxes has an input that passes through the wall. A passage and an output passage are formed, and each of the inner boxes has at least two passages that penetrate through its walls and communicate with the input passage and the output passage when the inner box is at a first predetermined position relative to the outer box. is formed in the block, and a passage is formed in the block that connects the passage of the inner box when the relative position with the inner box is at a second predetermined position, and the relative position of the outer box and the inner box is a first spring means that applies a force so that the inner box and the block are in a position other than the second predetermined position; A solenoid valve device comprising: a spring means; an electromagnetic device for displacing one position of the block or the inner box; and a manual operation means for displacing the other position of the block or the inner box. (2) The solenoid valve device according to claim (1), which has two passages in the outer case and serves as an on-off valve. (3) The solenoid valve device according to claim (1), wherein the inner box has three passages, the outer case has two input passages or two output passages, and serves as a switching valve.