JP2018115690A5

JP2018115690A5 -

Info

Publication number: JP2018115690A5
Application number: JP2017006005A
Authority: JP
Filing date: 2017-01-17
Publication date: 2019-06-06
Anticipated expiration: 2037-01-17

Description

上記する課題を解決するために、本発明に係る流路切換弁は、内部に弁室が形成されるとともに、該弁室に開口せしめられた複数の入出口が設けられた弁本体と、前記弁室内に回転自在に配在され且つ内部に流路が形成された弁体と、前記弁体と前記入出口との間を封止すべく、前記弁体と前記入出口との間に配置されたシート部材と、前記シート部材を前記弁体に押し付けるべく、前記シート部材と前記弁本体との間に配置された弾性部材と、前記弁体を回転軸線周りで回転させる回転駆動部と、を備え、前記弁体を回転させることにより、前記複数の入出口の連通状態が前記弁体の前記流路を通じて選択的に切り換えるようにされた流路切換弁であって、前記複数の入出口は、少なくとも前記弁室の側部に開口せしめられた２つの側部入出口を含み、前記弁体の回転軸線方向高さは、前記２つの側部入出口に配置された前記シート部材同士の間隔以下とされており、前記弁体の外周の少なくとも２箇所に、前記弁室内で前記弁体を所定方向に回転させて設置するための回転係合部が設けられていることを特徴としている。 In order to solve the problems described above, the flow path switching valve according to the present invention has a valve chamber formed therein and a valve body provided with a plurality of inlets and outlets opened in the valve chamber, and A valve body rotatably disposed in a valve chamber and having a flow passage formed therein, and disposed between the valve body and the inlet / outlet so as to seal between the valve body and the inlet / outlet. A seat member, an elastic member disposed between the seat member and the valve main body to press the seat member against the valve body, and a rotational drive unit for rotating the valve body around a rotation axis; A flow path switching valve in which communication states of the plurality of inlets and outlets are selectively switched through the flow path of the valve body by rotating the valve body, the plurality of inlets and outlets Have two side inlets open at least to the side of the valve chamber Includes a mouth, rotation axial height of the valve body, the two sides are equal to or less than the interval of the sheet members together arranged in inlet and outlet, at least two places of the outer periphery of said valve body, said It is characterized in that a rotational engagement portion for rotating and installing the valve body in a predetermined direction in the valve chamber is provided .

Claims

A valve body is formed inside, a valve body provided with a plurality of inlets and outlets opened in the valve chamber, and a valve rotatably disposed in the valve chamber and having a flow path formed therein A seat member disposed between the valve body and the inlet / outlet to seal between the body and the valve body and the inlet / outlet; and the seat to press the sheet member against the valve body. An elastic member disposed between the member and the valve body, and a rotational drive unit for rotating the valve body about a rotation axis, and the communication between the plurality of inlets and outlets by rotating the valve body A flow passage switching valve in which a state is selectively switched through the flow passage of the valve body,
The plurality of inlets and outlets include at least two side inlets and outlets opened to the side of the valve chamber, and the axial height of the valve body is disposed at the two side inlets and outlets. Less than the spacing between the sheet members ,
A flow passage switching valve characterized in that rotational engagement parts for rotating and installing the valve body in a predetermined direction in the valve chamber are provided at at least two locations on the outer periphery of the valve body .

2. The flow path switching valve according to claim 1, wherein the height in the rotational axis direction of the valve body is equal to or less than the distance between the sheet members in a state in which the elastic member is compressed at a predetermined pressure.

The valve body is provided with the two side entrances and exits, and a base member provided with an opening equal to or larger than the outer diameter of the valve at one end in the rotational axis direction, and fixedly connected to the opening of the base member. The flow path switching valve according to claim 1 or 2, wherein the flow path switching valve is divided into a holder member.

The valve body is provided with a vertical through hole which penetrates the valve body in the rotational axis direction and in which the valve shaft transmitting the rotational force of the rotational drive unit to the valve body is engaged in a relatively non-rotatable manner. The flow path switching valve according to any one of claims 1 to 3 , characterized in that:

The flow passage switching valve according to claim 4 , wherein the vertical through hole is capable of inserting the valve shaft in a rotational axis direction.

The flow path switching valve according to claim 4 or 5 , wherein a horizontal hole is formed to join the vertical through hole from the outer periphery of the valve body.

At least one of a lateral hole joining the vertical through hole from the outer periphery of the valve body and a lateral through hole penetrating the valve body perpendicularly to the rotation axis and intersecting and joining the longitudinal through hole is formed , the flow path switching valve according to claim 4 or 5, characterized in that said rotational engagement portion is provided on at least one of the lateral hole and the lateral through hole.

The valve shaft is inserted into the vertical through hole and the insertion hole provided in the valve main body, and a drive gear constituting the rotational drive unit is fixed to a portion projecting from the insertion hole The flow path switching valve according to claim 5 , characterized in that:

9. The flow passage switching valve according to claim 8 , wherein a stepped portion is provided on the outer periphery of the valve stem that is engaged and engaged around the fitting and inserting hole.

An inner hook-shaped hooking portion is provided in the fitting insertion hole, and a step that is engaged and engaged with the inner hook-shaped hooking portion is provided on the outer periphery of the valve shaft. The flow path switching valve according to 8 .

A valve body is formed inside, a valve body provided with a plurality of inlets and outlets opened in the valve chamber, and a valve rotatably disposed in the valve chamber and having a flow path formed therein A seat member disposed between the valve body and the inlet / outlet to seal between the body and the valve body and the inlet / outlet; and the seat to press the sheet member against the valve body. An elastic member disposed between the member and the valve body, and a rotational drive unit for rotating the valve body about a rotation axis, and the communication between the plurality of inlets and outlets by rotating the valve body A method of assembling a flow path switching valve, the state of which is selectively switched through the flow path of the valve body,
The elastic member and the seat member are disposed in at least two side entrances and outlets opened at the side of the valve chamber, and between the seat members disposed in the two entrances and outlets. Placing the valve body in a posture in which the direction of the rotation axis is horizontal;
Rotating the valve body at least around two axes orthogonal to the rotation axis between the sheet members in the valve chamber, and installing the valve body with the rotation axis in the vertical direction;
And b. Connecting a valve shaft for transmitting the rotational force of the rotational drive unit to the valve body to the valve body.

In the step of connecting the valve stem to the valve body, the valve stem is passed through a vertical through hole penetrating the valve body in the rotational axis direction, and the valve stem is engaged with the vertical through hole so as not to be relatively rotatable. The valve shaft is inserted into a fitting insertion hole provided in the valve main body, and a drive gear constituting the rotation driving unit is fixed to a portion of the valve shaft projecting from the fitting insertion hole. A method of assembling the flow path switching valve according to claim 11 .

Until the step portion provided on the outer periphery of the valve shaft is abutment engaging into the insertion hole around the valve shaft to claim 12, characterized in that for inserting the longitudinal through-hole and the insertion hole The assembly method of the flow-path switching valve of description.

In the step of connecting the valve stem to the valve body, the valve stem is inserted into a fitting insertion hole provided in the valve main body, and the valve stem is inserted into a vertical through hole penetrating the valve body in the rotational axis direction. The valve shaft is engaged with the longitudinal through hole so as not to allow relative rotation, and a drive gear constituting the rotational drive unit is fixed to a portion of the valve shaft that protrudes from the insertion hole. A method of assembling the flow path switching valve according to claim 11 .

The valve shaft is inserted into the insertion hole until the step provided on the outer periphery of the valve shaft is brought into contact engagement with the inner hook-shaped hook provided in the insertion hole. The assembling method of the flow-path switching valve of Claim 14 .