JPH01132875U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a sectional view of the entire refrigerant switchgear, showing the case in which half of the valve stem is made of another material, Figure 2 is an enlarged sectional view of the main parts, and Figure 3 is the same as Figure 2.
Line sectional view, Figure 4 is a plan view of the retaining piece, Figure 5 is a plan view of the end face of the valve stem, Figures 6 to 8 are explanatory diagrams of valve opening and valve closing, and Figure 6 is a diagram showing two valves. Fig. 7 is a sectional view when the small diameter valve passage is closed and the large diameter valve passage is half open, and Fig. 8 is a sectional view when both valve passages are open. be. O...Rotation axis, 1...Valve stem, 2...Valve path, 3...End face, 4...Wrench hole, 5...Close sliding surface, 10...Valve chamber, 11...Valve body, 12...Port, 13...Piping connection Hole, 17... opening, 20... locking hole, 21... spring, 22... locking piece, 23, 23', 24... locking hole, 25... retaining piece, 27... hole for wrench.

Amendment November 25, 1983 The name of the invention is amended as follows. Title of the invention Refrigerant switching device for air conditioners and air conditioners/heaters The scope of the utility model registration claims and the brief description of the drawings are amended as follows.

[Claims for Utility Model Registration] [1] Two valve passages 2, 2 are perforated in parallel in a direction perpendicular to the rotation axis O set in the longitudinal direction of a cylindrical body, and one end A valve stem 1 having a wrench hole 4 in which a stick wrench can be engaged on the end face 3 of the valve stem 1.
and a valve body 11 that encloses the valve stem 1 and is provided with a rotatable valve chamber 10 and a port 12 that opens at a position matching the valve passages 2, 2 and is connected to a piping connection hole 13. In the on-off valve for two refrigerant circuits of an air conditioner or an air conditioner, the valve chamber 10
The valve stem 1, which is formed for the purpose of being able to closely slide on the inner wall of the valve stem, has a greater elasticity than the reverse rotational force caused by the minute return phenomenon that occurs due to the restoring force due to the minute elastic deformation of the close sliding surface 5 of the valve stem 1. A spring 21 and a locking piece 2 made of a sphere that engages with the spring 21
2, the spring 2 is inserted into the locking hole 20 which opens on the outer surface of the valve stem 1 on the rotating body side so that a part of the locking piece 22 protrudes from the opening thereof.
1, and the other is the fixed side valve body 1.
1, all the openings of the valve passage 2 and all the ports 12 are located within a range that allows them to face each other with the locking piece 22 in the valve passage 2.
The locking piece 22 engages and locks the locking hole 23 during a fully open operation in which the locking holes 23 and 23 correspond to each other. A refrigerant opening/closing method for an air conditioner and an air-conditioning/heating machine, characterized in that a locking hole 24 for closing that can be engaged and locked is provided, and the valve stem 1 and the valve body 11 are integrated with each other via the locking piece 22. Device. [2] The locking hole 20 opened at one location on the outer periphery close to one end surface 3 of the valve stem 1 has a restoring force caused by minute elastic deformation of the close sliding surface 5 of the valve stem 1 to complete the rotation operation. A spring 21 having an elasticity greater than the reverse rotation force of a minute return phenomenon that sometimes occurs is inserted, and a locking piece 22 is installed internally against the elasticity of the spring 21, so that the locking piece 22 does not face each other. Within the possible range, when the two valve passages 2, 2 are of two types, large diameter and small diameter, a fully open operation in which all openings of the valve passages 2, 2 and all ports 12 coincide. Sometimes,
The locking hole 23 in which the locking piece 22 can be engaged and locked partially matches the opening of the large-diameter valve path 2 and the port 12, and the opening of the small-diameter valve path 2 and the port partially match. 12
The locking hole 23' for half-opening can be engaged and locked by the locking piece 22 in the case of a half-open operation when the valves do not match, and the locking hole 23' for half-opening can be engaged and locked when the locking piece 22 is engaged and locked when the valve is closed when the valve does not communicate with the entire opening of the valve passage 2 and any port 12. 2. The valve rod 1 and the valve body 11 are integrally formed by providing a closing locking hole 24 in which a stopper piece 22 can be engaged and locked, and the valve rod 1 and the valve body 11 are integrally formed via the locking piece 22. Refrigerant switching devices for air conditioners and air conditioners. [3] The locking hole 20, which opens at an eccentric position on one end surface 3 of the valve stem 1, has a microscopic locking hole 20 formed at the end of the rotation operation due to the restoring force caused by the minute elastic deformation of the close sliding surface 5 of the valve stem 1. A spring 21 having a larger elasticity than the reverse rotation force of the return phenomenon is inserted, and a locking piece 22 is installed internally against the elasticity of the spring 21, and a thick plate is attached to the retaining piece 25 that can come into contact with the end face 3. A locking hole 23 is provided at a position where the locking piece 22 can be engaged and locked during a full opening operation in which the openings of the two valve passages 2, 2 consisting of a diameter and a small diameter, and all ports 12 coincide with each other. A part of the opening of the valve passage 2 and the port 12 partially match, and the opening of the small diameter valve passage 2 and the port 1
A half-open locking hole 23' is provided at a position where the locking piece 22 can be engaged and locked during a half-open operation when the two do not match, and a closed valve that does not communicate with all openings of the valve passage 2 and any ports 12. A locking hole 24 for closing is provided at a position where the locking piece 22 can be engaged and locked during operation, and a hole 27 for a wrench is drilled in the center, and the valve stem 1 is inserted into the valve chamber 10 of the valve body 11. Insert the locking piece 22 that protrudes from the end face 3 of the valve stem 1 into the opening 17 of the valve chamber 10 to seal the valve stem 1 on the back side of the retaining piece 25 that comes into contact with the end face 3. The locking hole 23, the half-opening locking hole 23', and the closing locking hole 2 provided in the retaining piece 25 are brought into pressure contact with each other.
4 is connected to each port 12 in the valve body 11.
Valve body 1, which is the fixed side, with an accurate positional relationship with
2. A refrigerant opening/closing device for an air conditioner and an air-conditioning/heating machine according to claim 1, wherein the refrigerant switching device is fixed to the air conditioner.

[BRIEF DESCRIPTION OF THE DRAWINGS] Figure 1 is a longitudinal sectional view for explaining the related structure between the valve stem and the valve body, Figure 2 is an enlarged sectional view of the main parts, and Figure 3 is an enlarged sectional view of the main parts. , Figure 4 is Figure 2 A-A
Line sectional view, Fig. 5 is a sectional view taken along line B-B in Fig. 3, Fig. 6.
The figure is a plan view of the retaining piece, Figure 7 is a plane view of the valve stem, Figure 8 is a cross-sectional view when the two valve passages are completely closed, and Figure 9 is a view of the large diameter valve when the small diameter valve passage is closed. FIG. 10 is a sectional view when both valve passages are in an open state. O...Rotation axis, 1...Valve stem, 2...Valve path, 3...End face, 4...Wrench hole, 5...Close sliding surface, 10...Valve chamber, 11...Valve body, 12...Port, 13...Piping connection Hole, 17... Opening, 20... Locking hole, 21... Spring, 22... Locking piece, 23... Locking hole, 23'...
Half-opening locking hole, 24... Closing locking hole, 25... Retaining piece. Amendment December 16, 1983 The scope of claims for utility model registration is amended as follows.

[Scope of Claim for Utility Model Registration] [1] Two valve passages 2, 2 are perforated in parallel in a direction perpendicular to the rotational axis 0 set in the longitudinal direction of a cylindrical body, and one A valve stem 1 having a wrench hole 4 in which a rod wrench can be engaged is provided on the end face 3 of the end, and a valve chamber 10 that encloses the valve stem 1 and can rotate, which matches the valve passages 2, 2. In the opening/closing valve for two refrigerant circuits of an air conditioner or an air-conditioning/heating machine, the valve body 11 is provided with a port 12 opening at a position connected to a piping connection hole 13.
The elasticity is greater than the reverse rotational force caused by the minute return phenomenon that occurs at the end of rotation operation due to the restoring force due to minute elastic deformation of the close sliding surface 5 of the valve stem 1, which is formed for the purpose of being able to closely slide on the inner wall of the valve stem 1. A part of the locking piece 22 is inserted through the opening into the locking hole 20 that opens on the outer surface of the valve stem 1 on the rotating body side. is installed via the spring 21 so that it protrudes, and on the other hand, within a range that allows it to face the locking piece 22 on the valve body 11, which is the fixed side.
A locking hole 23 that can be engaged and locked by a locking piece 22 communicates with all the openings of the valve path 2 and any port 12 during a fully open operation in which all openings of the valve path 2 and all ports 12 coincide. When the valve is not closed, the locking piece 22
A refrigerant for an air conditioner and an air-conditioning/heating machine, characterized in that the valve stem 1 and the valve body 11 are integrated with each other via the locking piece 22. Switchgear. [2] The locking hole 20 opened at one location on the outer periphery close to one end surface 3 of the valve stem 1 has a restoring force caused by minute elastic deformation of the close sliding surface 5 of the valve stem 1 to complete the rotation operation. A spring 21 having an elasticity greater than the reverse rotation force of a minute return phenomenon that sometimes occurs is inserted, and a locking piece 22 is installed internally against the elasticity of the spring 21, so that the locking piece 22 does not face each other. Within the possible range, when the two valve passages 2, 2 are of two types, large diameter and small diameter, a fully open operation in which all openings of the valve passages 2, 2 and all ports 12 coincide. Sometimes,
The locking hole 23 in which the locking piece 22 can be engaged and locked partially matches the opening of the large-diameter valve path 2 and the port 12, and the opening of the small-diameter valve path 2 and the port partially match. 12
The locking hole 23' for half-opening can be engaged and locked by the locking piece 22 in the case of a half-open operation when the valves do not match, and the locking hole 23' for half-opening can be engaged and locked when the locking piece 22 is engaged and locked when the valve is closed when the valve does not communicate with the entire opening of the valve passage 2 and any port 12. 2. The valve rod 1 and the valve body 11 are integrally formed by providing a closing locking hole 24 in which a stopper piece 22 can be engaged and locked, and the valve rod 1 and the valve body 11 are integrally formed via the locking piece 22. Refrigerant switching devices for air conditioners and air conditioners. [3] The locking hole 20, which opens at an eccentric position on one end surface 3 of the valve stem 1, has a microscopic locking hole 20 formed at the end of the rotation operation due to the restoring force caused by the minute elastic deformation of the close sliding surface 5 of the valve stem 1. A spring 21 having a larger elasticity than the reverse rotation force of the return phenomenon is inserted, and a locking piece 22 is installed internally against the elasticity of the spring 21, and a thick plate is attached to the retaining piece 25 that can come into contact with the end face 3. A locking hole 23 is provided at a position where the locking piece 22 can be engaged and locked during a full opening operation in which the openings of the two valve passages 2, 2 consisting of a diameter and a small diameter, and all ports 12 coincide with each other. A part of the opening of the valve passage 2 and the port 12 partially match, and the opening of the small diameter valve passage 2 and the port 1
A half-open locking hole 23' is provided at a position where the locking piece 22 can be engaged and locked during a half-open operation when the two do not match, and a closed valve that does not communicate with all openings of the valve passage 2 and any ports 12. A locking hole 24 for closing is provided at a position where the locking piece 22 can be engaged and locked during operation, and a hole 27 for a wrench is drilled in the center, and the valve stem 1 is inserted into the valve chamber 10 of the valve body 11. Insert the locking piece 22 that protrudes from the end face 3 of the valve stem 1 into the opening 17 of the valve chamber 10 to seal the valve stem 1 on the back side of the retaining piece 25 that comes into contact with the end face 3. The locking hole 23, the half-opening locking hole 23', and the closing locking hole 2 provided in the retaining piece 25 are brought into pressure contact with each other.
4 is connected to each port 12 in the valve body 11.
Valve body 1, which is the fixed side, with an accurate positional relationship with
2. A refrigerant opening/closing device for an air conditioner and an air-conditioning/heating machine according to claim 1, wherein the refrigerant switching device is fixed to the air conditioner.

Claims (1)

[Scope of utility model registration request] Two valve passages 2, 2 are perforated in parallel in a direction perpendicular to the rotation axis O set in the longitudinal direction of a perfect circular cylindrical body, and a rod wrench is inserted into the end face 3 of one end. Valve stem 1 with a wrench hole 4 that can be engaged
and a valve body 11 that encloses the valve stem 1 and is provided with a rotatable valve chamber 10 and a port 12 that opens at a position matching the valve passages 2, 2 and is connected to a piping connection hole 13. In this on-off valve for two refrigerant circuits of an air conditioner, the rotation operation is completed by the restoring force due to minute elastic deformation of the close sliding surface 5 of the valve stem 1, which is formed for the purpose of being able to closely slide on the inner wall of the valve chamber 10. The valve stem 1 on the rotating body side is equipped with a spring 21 having elasticity greater than the reverse rotational force of a minute return phenomenon that sometimes occurs, and a locking piece 22 that engages with the spring 21.
The locking piece 22 is mounted so that a part of the locking piece 22 protrudes from the outer surface of the valve main body 11 on the other fixed side, and the valve passage 2 and the port 12 are aligned with each other at a position opposite to the locking piece 22 on the other fixed side valve body 11. The locking holes 23, 23 can be engaged with the locking piece 22 when the valve is closed, and the locking piece 2 can be engaged with the locking piece 22 when the valve is not connected to the valve passage 2 and any port 12.
A locking hole 24 that can be engaged with the valve chamber 10 and a retaining piece 25 having a hole 27 for a wrench or the like in the center O' are attached to the valve chamber 10.
In order to seal the valve stem 1 into the opening 17 of the valve chamber 10, the locking piece 22 protruding from the end face 3 is brought into pressure contact with the back surface of the retaining piece 25, and the retaining piece 25 is pressed against the back surface of the retaining piece 25. A refrigerant opening/closing device for an air conditioner, in which each of the locking holes 23, 23, 24 is fixed in an accurate relationship with the position of each port 12 in the valve body 11.