JPH04114850U - Plumbing hose connection device - Google Patents

Abstract

(57) [Summary] [Purpose] Even if the equipment to be connected to the plumbing hose is installed in a narrow place where it is difficult to insert both hands, the plumbing hose can be connected to the piping port of the equipment to be connected with one hand. Can be easily tightened. [Configuration] Attach the connecting fitting 18 to the plumbing hose 14,
This fitting 18 is inserted into the corresponding engagement groove 28 of the service valve 16. Even if the operator removes his/her hand from the connecting fitting 18, the connecting fitting 18 is retained within the engagement groove 28. Also,
The connecting tube portion 20 of the fitting 18 is aligned with the corresponding pipe port 16A of the service valve 16, and the threaded through hole 24 of the fitting 18 is aligned with the corresponding threaded hole 16a of the service valve 16.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention can be applied to, for example, an evaporator and compressor of an automobile air conditioner or Connect the air conditioner piping hose installed between the condenser and the refrigerant gas. Concerning improvement of piping hose connection device connected to compressor service valve It is something.

0002

[Conventional technology]

The compressor of an automobile air conditioner is connected to its low pressure side and high pressure side respectively. These service valves include evaporators and The plumbing hose from the condenser is connected.

0003 This type of prior art plumbing hose connection device is attached to the connection end of a plumbing hose. This connection is equipped with a fitting that is connected to the service valve that is The fitting is a connecting pipe part that communicates with the plumbing hose and is to be connected to the service valve's piping port. and a screw that screws into the screw hole provided in the service valve body to secure the connection fitting. It consists of a metal fitting main body having a screw through hole through which the metal fitting body passes.

0004

[Problem that the idea aims to solve]

In this prior art piping hose connection device, the connection fitting is connected to the compressor. fitting attached to the hose with one hand when assembling the service valve. While pressing the service valve against the service valve, temporarily tighten the screw with the other hand, then tighten the impact I was fully tightening the screws in the trench. Push the fitting onto the service valve with one hand. The main body of the fitting and the service valve are only in surface contact, so The connection fitting tends to separate from the service valve due to the repulsive force of the rubber of the pipe hose. It's a good thing.

[0005] However, compressors for automotive air conditioners are usually mounted on the radiator at the front of the car. Since it is installed in a relatively narrow place such as the back side, it is difficult to insert both hands into such a narrow place. It is extremely difficult to insert the screws, and it takes a lot of time to temporarily tighten the screws. The problem was that it took a long time and the workability was low.

[0006] The purpose of this invention is to avoid the above-mentioned drawbacks and to allow connected equipment to insert both hands. For piping that can be easily temporarily tightened with one hand even when installed in difficult and narrow spaces. The purpose of the present invention is to provide a hose connection device.

[0007]

[Means to solve the problem]

In order to solve the above problems, this invention is installed at the connection end of a plumbing hose. The connection fitting is connected to the connected device, and this connection fitting communicates with the plumbing hose. Screw into the connecting pipe section to be connected to the piping port of the connected device and the screw hole of the connected device. An arrangement consisting of a fitting body having a screw through hole through which a screw for fixing the connecting fitting is passed. In the pipe hose connection device, the connected device has an engagement groove into which the metal fitting body engages, A feature is that the piping port and screw hole of the connected device are provided at the bottom of this engagement groove. The present invention provides a piping hose connection device.

[0008]

[Effect]

In this way, if the connected device has an engagement groove in the fitting body, the connecting fitting will The metal fitting body is held in the engagement groove even if it receives the repulsive force of the screw, so temporarily tighten the screw with one hand. You can easily temporarily fasten the connecting fittings to the connected device by screwing the can be performed with high efficiency.

[0009]

【Example】

Embodiments of the present invention will be described in detail with reference to the drawings. Such a plumbing hose connection device 10 is shown, and in the illustrated embodiment, a plumbing hose connection device 10 is shown. 10 is a compressor 12 of an automobile air conditioner and an evaporator (not shown). It is applied to connect between capacitors and capacitors.

0010 The plumbing hose connection device 10 of the present invention connects the connection ends of the plumbing hoses 14, 14'. Connected to the service valve 16 of the compressor 12, which is installed and connected equipment. The connecting fittings 18, 18' are provided. These connecting fittings 18, 18' are Piping port of service valve (connected equipment) 16 that communicates with piping hoses 14, 14' Connecting pipe section 20 to be connected to 16A and 16B and screw hole 1 of service valve 16 6a and 16b to fix the connecting fittings 18 and 18' to the service valve 16. A metal fitting body 26, 26' having a screw through hole 24 through which the screw 22, 22' passes. It consists of

[0011] The service valve 16, which is a connected device, has a metal fitting main body, as shown in FIGS. 2 and 3. It has engagement grooves 28, 28' into which the bodies 26, 26' engage, and the arrangement of the service valve 16. The pipe ports 16A, 16B and the screw holes 16a, 16b are located at the bottoms of the engagement grooves 28, 28'. Each is provided. In addition, as can be seen from FIGS. 1 and 2, the metal fitting body 26, 26' is shaped like a gourd, and therefore the engagement grooves 28 and 28' are also shaped like a gourd. is doing.

0012 Next, the method of assembling the piping hose connection device 10 of the present invention will be described. Attach the connecting fittings 18, 18' to the bases 14, 14', respectively, and connect these connecting fittings 1. 8 and 18' into the corresponding engagement grooves 28 and 28' of the service valve 16, respectively. do. In this way, even if you take your hands off the connection fittings 18, 18', the connection fittings 18, 18' , 18' are held within the engagement grooves 28, 28'. In addition, the connection fittings 18, 18' The connecting pipe portions 20 are connected to corresponding pipe ports 16A and 16B of the service valve 16, respectively. The threaded through holes 24 of the connecting fittings 18, 18' are aligned with the service valve 16. are aligned with the corresponding screw holes 16a, 16b, respectively.

[0013] Therefore, the connecting fittings 18, 18' held in the engagement grooves 28, 28' in this way Pass the threaded through hole 24 through the screws 22, 22' and insert the screw of the service valve 16. Attach the connecting fittings 18, 18' to the service valve 16 by screwing them into the holes 16a, 16b. Can be tightened. After that, fully tighten screws 22 and 22' using an impact wrench. Then, attach the connecting fittings 18, 18' to the service valve 16 and connect the plumbing hose 14, 14' is connected to piping ports 16A and 16B of the service valve 16.

[0014] In the above embodiment, the piping hose connection device of the present invention is applied to an automobile air conditioner. Although we have explained the case where the plumbing hose is connected in a narrow place, It can be similarly applied to devices, etc.

[0015]

[Effect of the idea]

According to the present invention, as described above, the connected device is inserted into the connected device by the fitting body of the connecting fitting. Since it has an engagement groove, even if the connection fitting receives a repulsive force from the plumbing hose, the fitting body will not be engaged. Since it is held in the groove, it is easy to temporarily tighten the screw with one hand and attach the connection fitting to the connected device. This makes it possible to temporarily tighten connection fittings with high efficiency even in narrow spaces. There are practical benefits that can be done.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a plumbing hose connection device according to the present invention.

FIG. 2 is a sectional view of essential parts of the present invention.

FIG. 3 is an exploded perspective view of essential parts of the present invention.

[Explanation of symbols]

10 Plumbing hose connection device 14 Plumbing hose 14’ Plumbing hose 16 Service valve (connected equipment) 16A piping port 16B Piping port 16a screw hole 16b screw hole 18 Connection fittings 18’ Connection fittings 20 Connection pipe section 22 screw 22’ screw 24 Screw through hole 26 Metal fitting body 26’ Bracket body 28 Engagement groove 28’ Engagement groove

Claims (1)

[Scope of utility model registration request] 1. A connecting fitting that is attached to a connecting end of a plumbing hose and connected to a connected device, the connecting fitting communicating with the plumbing hose and connecting to a piping port of the connected device. In a plumbing hose connection device comprising a fitting main body having a pipe portion and a screw through hole through which a screw for screwing into a screw hole of a connected device and fixing the connecting fitting passes through, the connected device has It has an engagement groove for engagement,
The piping hose connection device, wherein the piping port and the threaded hole are provided at the bottom of the engagement groove.