阅读说明：本技术 一种可充气式密度继电器表 (Inflatable density relay meter ) 是由 蔡玉华 倪超 陶飞 梅然 于 2020-12-07 设计创作，主要内容包括：本发明公开的一种可充气式密度继电器表,包括密度继电器表,所述密度继电器表的背面具有一充气接口,其特征在于,在所述密度继电器表的充气接口上连接一弯管,该弯管的另一端延伸到密度继电器表的正面,在所述弯管的另一端连接一带自封阀的充气接口；在需要检测或者补气时,在所述带自封阀的充气接口上连接一检测或补气接头,所述检测或补气接头对准带自封阀的充气接口,旋进顶开带自封阀的充气接口内的顶针。本发明不但可以提高制造和安装效率,而且还可以解决现场对密度继电器表检测和补气不方便的问题。本发明针对在不改变柜体结构的前提下,将充气阀门装置和密度继电器表组合起来,并且进行改进设计来满足要求。(The inflatable density relay meter is characterized in that the inflatable interface of the density relay meter is connected with a bent pipe, the other end of the bent pipe extends to the front of the density relay meter, and the other end of the bent pipe is connected with an inflatable interface with a self-sealing valve; when detection or air supplement is needed, a detection or air supplement joint is connected to the inflation interface with the self-sealing valve, the detection or air supplement joint is aligned to the inflation interface with the self-sealing valve, and a thimble in the inflation interface with the self-sealing valve is screwed in and jacked open. The invention not only can improve the manufacturing and installation efficiency, but also can solve the problems of inconvenient detection and air supplement of the density relay meter on site. The invention aims at combining an inflation valve device and a density relay table on the premise of not changing the structure of a cabinet body, and carrying out improved design to meet the requirement.)

1. An inflatable density relay meter comprises a density relay meter, wherein an inflation interface is arranged on the back surface of the density relay meter, and the density relay meter is characterized in that a bent pipe is connected to the inflation interface of the density relay meter, the other end of the bent pipe extends to the front surface of the density relay meter, and the other end of the bent pipe is connected with an inflation interface with a self-sealing valve; when detection or air supplement is needed, a detection or air supplement joint is connected to the inflation interface with the self-sealing valve, the detection or air supplement joint is aligned to the inflation interface with the self-sealing valve, and a thimble in the inflation interface with the self-sealing valve is screwed in and jacked open.

2. The inflatable density relay watch of claim 1, wherein said elbow is attached to said inflatable interface of said density relay watch by a stop screw; the stop screw is loosened, so that the bent pipe can carry the inflation interface with the self-sealing valve to rotate for 360 degrees; the elbow and the inflation interface with the self-sealing valve can be fixed at a proper position by screwing the stop screw.

Technical Field

The invention relates to the field of power equipment, in particular to an inflatable density relay meter.

Background

A density relay gauge is an instrument used to measure gas pressure. The device is mainly used in gas insulated metal closed switch equipment, and when a density relay meter needs to be detected or an equipment gas tank needs to be replenished with gas, the device needs to be dismantled. According to the relevant standard requirements, the gas density relay meter is not required to be removed when the density relay meter of the equipment gas box is detected or supplemented with gas. Referring to fig. 1, in the existing device, a three-way valve 3 with an inflation interface switch 3a and a bracket 2 are additionally arranged in front of a density relay meter 1, wherein an inflation interface 3b in the three-way valve 3 faces upwards, so that although the requirements are met, the problems of complex installation and inconvenient field detection and air supply are caused due to the structure of a cabinet body. Referring to fig. 2 in particular, the inflation port 3b of the three-way valve 3 is closer to the secondary wiring terminal board 4, which causes inconvenience in field detection and air supply.

In order to improve the manufacturing and installation efficiency and the convenience of field detection and air supplement, the improved design is carried out on the basis of adding a three-way valve to the original density relay meter.

Disclosure of Invention

The invention aims to solve the technical problem that the inflatable density relay meter is provided aiming at the problem that the inconvenience of field detection and air supplement is caused because the inflation interface of the original three-way valve device and the density relay meter is closer to the secondary wiring terminal board.

The technical problem to be solved by the invention can be realized by the following technical scheme:

an inflatable density relay meter comprises a density relay meter, wherein an inflation interface is arranged on the back surface of the density relay meter, and the density relay meter is characterized in that a bent pipe is connected to the inflation interface of the density relay meter, the other end of the bent pipe extends to the front surface of the density relay meter, and the other end of the bent pipe is connected with an inflation interface with a self-sealing valve; when detection or air supplement is needed, a detection or air supplement joint is connected to the inflation interface with the self-sealing valve, the detection or air supplement joint is aligned to the inflation interface with the self-sealing valve, and a thimble in the inflation interface with the self-sealing valve is screwed in and jacked open.

In a preferred embodiment of the invention, the elbow is connected to the air inflation interface of the density relay meter through a stop screw; the stop screw is loosened, so that the bent pipe can carry the inflation interface with the self-sealing valve to rotate for 360 degrees; the elbow and the inflation interface with the self-sealing valve can be fixed at a proper position by screwing the stop screw.

Due to the adoption of the technical scheme, the invention not only can improve the manufacturing and installation efficiency, but also can solve the problems of inconvenient detection and air supply of the density relay meter on site.

The invention aims at combining an inflation valve device and a density relay table on the premise of not changing the structure of a cabinet body, and carrying out improved design to meet the requirement.

The inflatable density relay meter has certain universality, simplifies the production and manufacturing process, lowers the production, manufacturing and maintenance costs, and improves the working efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a three-way valve with an air charging interface switch and a bracket additionally arranged in front of a density relay meter in the prior art.

Fig. 2 is a schematic view of an inflatable density relay meter installed after a three-way valve with an inflatable interface switch and a bracket are additionally installed in front of the existing density relay meter.

FIG. 3 is a schematic diagram of the inflatable density relay watch according to the present invention.

FIG. 4 is a schematic view of the inflatable density relay meter installation of the present invention.

Detailed Description

The invention is further described below in conjunction with the appended drawings and detailed description.

Referring to fig. 3, the inflatable density relay meter shown in the figure comprises a density relay meter 1, wherein the back surface 1a of the density relay meter 1 is provided with an air inflation port 1b, the air inflation port 1b of the density relay meter 1 is connected with a bent pipe 6 through a stop screw 5, the other end 6a of the bent pipe 6 extends to the front surface 1c of the density relay meter 1, and the other end 6a of the bent pipe 6 is connected with an air inflation port 7 with a self-sealing valve; when detection or air supplement is needed, a detection or air supplement joint 8 is connected to the air inflation interface 7 with the self-sealing valve, the detection or air supplement joint 8 is aligned with the air inflation interface 7 with the self-sealing valve, and a thimble 7a in the air inflation interface 7 with the self-sealing valve is screwed in and jacked open.

The invention improves the existing inflatable density relay meter which combines a three-way valve 3 and a density relay meter 1, namely, an inflation interface 1b of the density relay meter 1 is changed from the side surface to the front surface 1c of the density relay meter 1 through a bent pipe 6, and an inflation interface 7 with a self-sealing valve and a detection or air supply joint 8 replace the three-way valve (3). Referring to fig. 4, the inflation connector 7 with the self-sealing valve of the inflatable density relay meter of the invention is opposite to the front face of the cabinet body and is not affected by the secondary wiring terminal board 4.

When the density relay meter 1 or air supplement is detected, only the corresponding detecting or air supplement joint 8 is needed to be aligned with the air inflation interface 7 with the self-sealing valve and screwed in to jack the thimble 7a, and the step of opening the air inflation interface switch is omitted.

The stop screw 5 is loosened, the inflation interface 7 with the self-sealing valve can rotate 360 degrees around the density relay meter 1 through the bent pipe 6, and the inflation interface is fixed through the stop screw 5 after the angle is determined, so that the requirements of different structures can be met. In addition, the weight of the watch is lighter than that of the original watch, so that the assembly of the bracket 2 is cancelled, the manufacturing cost is saved, and the working efficiency is improved.