JPH0726620U - Multi-way valve for outdoor unit of air conditioner - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a multi-way valve for an outdoor unit of an air conditioner, which can be opened and closed by one type of hexagon wrench. [Structure] A valve rod having an openable and closable valve inside is attached to an outdoor unit, a refrigerant pipe connected to the indoor unit is connected, and the valve rod is opened and closed to adjust the refrigerant flow in and out of the air conditioner. In multi-way valves such as one-way valves and three-way valves,
A large size wrench insertion hole is formed in the valve rod of the multi-way valve, and a small size wrench insertion hole is further formed at the bottom of the insertion hole.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a multi-way valve of an outdoor unit of an air conditioner, and more particularly to a structure of a wrench hole for opening and closing the multi-way valve of an outdoor unit.

[0002]

[Prior art]

 Conventionally, as shown in FIG. 3, an outdoor unit of an air conditioner includes a two-way valve 34 and a three-way valve for opening and closing a refrigerant pipe with an indoor unit on a side surface of a unit main body 31 having an air suction port 32 and the like. A valve 33 is attached. The internal structure of the three-way valve is as shown in FIG. 2, in which reference numeral 21 is a first flow path connected to the outdoor unit body, which is connected to the valve chamber 22 and a connection pipe to the indoor unit. Refrigerant is allowed to flow in and out of the indoor unit via the second flow path 23. A joint 24 is used for venting gas and injecting a refrigerant, and is normally closed by a blind lid 25. The valve rod 28 has a male screw 26, and the valve body 27 has a female screw. During installation work of the valve body 27 and the like, the valve rod 28 is rotated by a wrench to close the valve chamber 22. The flow of refrigerant is stopped so that it can be opened when the air conditioner starts operating. As described above, the valve chamber 22 is opened and closed by inserting a hexagon wrench into the wrench insertion hole 30 provided in the valve rod 28 and rotating the hexagon wrench. The hole diameter of the hexagon wrench insertion hole 30 varies depending on the manufacturer of the air conditioner, and it is inconvenient because it is necessary to prepare a plurality of hexagon wrench suitable for the hole diameter at the time of construction. Also, if the valve is forcibly tightened with a hexagonal size that does not match the size, an accident will occur that the insertion hole will be destroyed due to over-tightening, and it will be necessary to replace the valve. The troubles such as the removal of the refrigerant, the removal of the welded portion, the evacuation and the introduction of the gas are required.

[0003]

[Problems to be solved by the device]

 An object of the present invention is to provide a structure of a multi-way valve that can open and close the valve with one type of hexagonal wrench, without the above-mentioned problems.

[0004]

[Means for Solving the Problems]

 In order to solve the above-described problems, the present invention has a multi-directional valve such as a two-way valve and a three-way valve that is attached to an outdoor unit and has a freely openable and closable valve stem inside to open and close a refrigerant pipe with the indoor unit In the valve, a hole for inserting a large size wrench is formed in a valve rod of the multi-way valve, and a hole for inserting a small size wrench is further formed in a bottom portion of the insertion hole.

[0005]

[Action]

 Since the air conditioner according to the present invention is configured as described above, the valve can be opened and closed by using one size of hexagon wrench.

[0006]

【Example】

 Hereinafter, an embodiment of an air conditioner according to the present invention will be described in detail with reference to the drawings. A large size wrench insertion hole is drilled in the valve, and a small size wrench insertion hole is drilled in the bottom of the drilled hole. The embodiment of FIG. 1 is a cross-sectional view of the main part of such a three-way valve. In FIG. In addition, it has a female screw 5 for opening and closing the valve body 2 inside. In the same figure, when the hexagonal wrench 6 held for mounting work has a small size, the hexagonal wrench 6 is inserted into the valve hole 7 for the thin size. Further, if the hexagon wrench held for mounting work has a large size, this hexagon wrench may be inserted into the hole 8 for the large size.

[0007]

[Effect of device]

 As described above, according to the air conditioner of the present invention, since the wrench insertion hole of the multi-way valve can be engaged with the hexagonal wrench of multiple sizes, it is possible to install multiple It is convenient because there is no need to prepare a size hex wrench. Moreover, there is an effect that the valve is forcibly tightened with a wrench that does not fit and the valve is damaged, and the accident that the valve must be replaced does not occur.

[Brief description of drawings]

FIG. 1 is a sectional view of a main part of a valve portion of a three-way valve of an air conditioner according to the present invention.

FIG. 2 is a sectional view of a main part of a conventional three-way valve.

FIG. 3 is an explanatory view of a mounting portion of a multi-way valve of a conventional air conditioner.

[Explanation of symbols]

 1 Second flow path 2 Valve body 3 Male screw 4 Valve rod 5 Female screw 6 Wrench 7 Wrench insertion hole 8 Wrench insertion hole

Claims (1)

[Scope of utility model registration request] 1. A refrigerant pipe having an openable and closable valve stem inside, which is attached to an outdoor unit and connected to a refrigerant pipe connected to an indoor unit, is opened and closed to adjust the refrigerant flow in and out of an air conditioner. In a multi-way valve such as a two-way valve and a three-way valve, a hole for inserting a large size wrench is formed in the valve rod of the multi-way valve, and a hole for inserting a small size wrench is formed at the bottom of the insertion hole. A multi-way valve for an outdoor unit of an air conditioner characterized by being formed.