CN2315110Y

CN2315110Y - Self-closing oil feeder

Info

Publication number: CN2315110Y
Application number: CN 97250084
Authority: CN
Inventors: 葛爱乐; 葛慈克
Original assignee: JIANGBEI JUNMIN MACHINERY FACTORY YONGJIA COUNTY
Current assignee: JIANGBEI JUNMIN MACHINERY FACTORY YONGJIA COUNTY
Priority date: 1997-11-23
Filing date: 1997-11-23
Publication date: 1999-04-21
Anticipated expiration: 2007-11-23

Abstract

The utility model relates to a negative pressure self-closing type oil gun which is matched with a fuel metering oiling machine, when a handle lever is pushed aside, the oil gun can be used for filling oil and the air sucking. The utility model is characterized in that in an existing main valve, a terminal opening sealing device is arranged at the outside of the main valve terminal opening; the sealing device is composed of a top rod inner sleeve, a pressing sheet, a spring, a sealing element and a screw nut; the sealing element is arranged between the top rod inner sleeve and a top rod, and the sealing element is fixedly compacted by the spring and the screw nut through the pressing sheet. The aim of the utility model is to keep the stability of the sealing performance of the oil gun, and at the same time, the maintenance and the loading and unloading are convenient. The utility model has the advantages that the oil is not easy to leak, the service life of the sealing element is long, the maintenance rate of products is low, etc.

Description

The self-sealing nozzle

The utility model relates to a kind of and the supporting use of fuel metering fuel charger, tiller back down, oiling is air-breathing, negative pressure self-sealing nozzle.

At present, at each petrol service station and the matching used self-sealing nozzle of fuel metering fuel charger, its structure includes handle, main valve, negative pressure self-packer, reflux valve, tracheae, oil outlet pipe, and wherein handle heads on the push rod of main valve; The secondary valve chamber of rifle body in the negative pressure self-packer stretches to the exit end of oil outlet pipe by tracheae and communicates with atmosphere, and self-styled push rod and handle are movably hinged.The primary-valve port sealing arrangement is located in the main valve cavity, by screw directly fixedly O-ring seals seal, because refueling, uses frequently the self-sealing nozzle, upper and lower the moving of the push rod of main valve causes screw not press tightly sealing member easily, sealing member and sealed 's closed intensity is reduced, influence its leak tightness, make nozzle leakage of oil often occur, and sealing arrangement is located in the main valve cavity, give regulate, maintenance loading and unloading sealing member brings inconvenience.

The purpose of this utility model is stable, the easy to maintenance self-sealing nozzle of a kind of sealing property of design.

In order to achieve the above object, the utility model is finished by the following technical solutions: in the main valve that is contained, its port sealing device is located at the primary-valve port outside, it is made of cover, compressing tablet, spring, sealing member, nut in the push rod, sealing member is installed between interior cover of push rod and the push rod, and is fixed and clamped by spring, nut by compressing tablet.After the self-sealing nozzle frequently uses a period of time, though sealing member and sealed 's closed intensity is affected, but under the effect of initial tension of spring, sealing member and sealed face can remain closed contact, make nozzle keep excellent sealing performance; Simultaneously, the sealing device is located at the port outside, brings convenience for maintenance loading and unloading, adjusting.

The utility model compared with prior art has the following advantages:

1, good seal performance;

2, maintenance loading and unloading, easy to adjust;

3, prolonged the service life of sealing member;

4, not easy oil leakage.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the present embodiment front view.

As shown in Figure 1, present embodiment includes handle (1), main valve (10), negative pressure self-packer (9), reflux valve (12), tracheae (8), oil outlet pipe (5), and annexation between them and structure are prior art, no longer describes here.Main valve (10) port sealing device is located at the primary-valve port outside, it is made of cover (2), compressing tablet (6), spring (3), sealing member (11), nut (5) in the push rod, sealing member (11) is installed in and overlaps between (2) and the push rod (4) in the push rod, and be fixed and clamped cover (2) thread connection in nut (5) and the push rod by spring (3), nut (5) by compressing tablet (6).After the self-sealing nozzle frequently uses a period of time, though sealing member (11) is affected with sealed closed intensity, but under the effect of spring (3) predetermincd tension, sealing member and sealed face remain closed contact, make the self-sealing nozzle keep excellent sealing performance on the one hand, not easy oil leakage makes seal durability obtain prolonging on the other hand, has reduced the product maintenance rate; While sealing device is located at the primary-valve port outside, brings convenience for maintenance loading and unloading, adjusting.

Claims

1, a kind of self-sealing nozzle, comprise main valve, it is characterized in that in the main valve that is contained, its port sealing device is located at the primary-valve port outside, it is made of cover (2), compressing tablet (6), spring (3), sealing member (11), nut (5) in the push rod, sealing member is installed in the push rod and overlaps between (2) and the push rod (4), and is fixed and clamped by spring (3), nut (5) by compressing tablet (6).