CN218847507U

CN218847507U - Visual early warning nut

Info

Publication number: CN218847507U
Application number: CN202223139780.7U
Authority: CN
Inventors: 楼群建
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-04-11
Anticipated expiration: 2032-11-25

Abstract

The utility model relates to a visual early warning nut, including the nut casing, nut casing lower extreme opening is and its inner surface is equipped with the screw thread, and nut casing upper end is narrowed and is formed with the stand, and the elastic diaphragm circle is established to nut casing upper end inner seal, and elastic diaphragm circles and has found the pointer, and the stand upper end is still stepped on and is equipped with the observation post, and the pointer is located in the stand, it is closed setting to survey the post, and is transparent material. The utility model discloses carry out closed setting with nut shell tip to establish whole casing into transparent material, can not follow early warning nut and locate to take place to reveal like this, and transparent material does not influence and observes the pointer position. The utility model discloses a sealing performance is better to can not produce because of the sealing performance of elasticity diaphragm circle is inefficacy and reveal.

Description

Visual early warning nut

Technical Field

The utility model relates to an use early warning nut at air conditioner.

Background

When the air conditioner leaves the factory, the air conditioner is provided with an early warning nut for detecting whether the evaporator of the air conditioner is deflated. Among the prior art, its general inside of early warning nut is equipped with the bright-colored pilot pin of colour, and the open-top of early warning nut, under normal conditions, if inside does not reveal, then because inside is full of nitrogen gas, the pilot pin is ejecting outside the opening, observes more easily. If the leakage happens, the indicating needle retracts into the nut, the indicating needle cannot be observed, and therefore the surface is leaked as long as no indicating needle extends out of the nut. Although the diaphragm of the internal connection indicating needle is connected with the nut shell in a sealing manner, if the sealing effect at the position is not ideal enough, the end part of the early warning nut is opened, and leakage is easy to generate.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a visual early warning nut which can not be revealed.

The utility model discloses a following technical scheme realizes:

the utility model provides a visual early warning nut, includes the nut casing, nut casing lower extreme opening and its inner surface are equipped with the screw thread, nut casing upper end is narrowed and is formed with the stand, and the elastic diaphragm circle is established to nut casing upper end internal seal, and elastic diaphragm circles and immediately has the pointer, and stand upper end still ladder is equipped with the observation post, the pointer is located in the stand, it is closed setting to survey the post, and is transparent material.

Preferably, the elastic diaphragm ring comprises a sealing ring sleeve and an elastic diaphragm arranged at the bottom of the sealing ring sleeve, the elastic diaphragm can elastically float up and down, the indicator needle is arranged on the elastic diaphragm, a first step is arranged on the inner surface of the upper end of the nut shell, a convex ring is further arranged on the radial inner side of the first step, and a sealing ring of the elastic diaphragm ring is sleeved between the first step and the convex ring.

Preferably, a second step is arranged below the first step, a gasket is arranged at the position of the second step, a convex wall is convexly arranged on the upper surface of the gasket, and the elastic diaphragm ring is sleeved on the convex wall.

Preferably, a sealing sleeve is further arranged below the gasket, and two ends of the sealing sleeve are located between the threads and the gasket.

Preferably, the entire nut housing is made of a transparent material.

The beneficial effects of the utility model reside in that: the utility model discloses carry out closed setting with nut shell tip to establish whole casing into transparent material, can not follow early warning nut and locate to take place to reveal like this, and transparent material does not influence and observes the pointer position. The utility model discloses a sealing performance is better to can not produce because of the sealing performance of elasticity diaphragm circle is inefficacy and reveal.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the utility model.

Fig. 2 is a schematic sectional structure view of fig. 1.

Detailed Description

The following detailed description of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1 and 2, the visual early warning nut comprises a nut shell 3, wherein the lower end of the nut shell is open, the inner surface of the nut shell is provided with threads 10, and the upper end of the nut shell is narrowed to form an upright post 2. An elastic diaphragm ring 5 is arranged in the upper end of the nut shell in a sealing mode, the elastic diaphragm ring comprises a sealing ring sleeve 11 and an elastic diaphragm 12 arranged at the bottom of the sealing ring sleeve, the elastic diaphragm 12 is arranged in an arc shape, and the elastic diaphragm can elastically float up and down under the action of external force. The elastic diaphragm is vertically provided with a groove column, the indicating needle 4 is inserted into the groove column, and the indicating needle 4 is just positioned in the upright post 2. The lower part of the elastic diaphragm ring 5 is provided with a gasket 6, the upper surface of the gasket is convexly provided with a convex wall 13, the bottom of the elastic diaphragm 12 is plugged in the convex wall 13, and the sealing ring 11 is sleeved outside the convex wall 13. The upper end of the upright post 2 is also provided with an observation post 1 in a ladder way, and the observation post 1 is arranged in a closed way and is made of transparent material. When the elastic membrane 12 is stressed, the elastic membrane floats upwards to jack up the indicating needle 4, the indicating needle 4 enters the observation column 1, and the observation column 1 is made of transparent materials and is easy to observe.

The inner surface of the upper end of the nut shell is provided with a first step 9, the radial inner side of the first step is also provided with a convex ring 8, and a sealing ring sleeve 11 of the elastic diaphragm ring is arranged between the first step and the convex ring. A second step 14 is arranged below the first step, and the gasket 6 is arranged at the position of the second step 14. A sealing ring sleeve 7 is arranged below the gasket, and two ends of the sealing ring sleeve 7 are positioned between the threads and the gasket. The whole nut shell is made of transparent materials and is integrally formed by injection molding.

The utility model discloses seal structure to inside improves, and elastic diaphragm is full and the nut casing between sealed, mainly realizes through sealed snare 11 and first step, bulge loop, has realized sealed effect between first step and the sealed snare 11, through the setting of bulge loop 8, has increased this kind of sealing performance, and packing ring 6 is established to elastic diaphragm circle below, and sealed effect is increased again to rethread sealed snare 11, compares in prior art like this, and sealing performance is better. Most importantly, the end part of the nut shell is arranged in a closed mode, and leakage cannot occur from the early warning nut even if the sealing component fails.

After the interior is filled with gas, the elastic diaphragm 12 is pressed to push the indicating needle out of the observation column 1, if leakage occurs, the indicating needle 14 retracts, and the observation column 1 is made of transparent material and can be easily observed.

In order to produce conveniently, the whole nut shell is made of transparent materials and is integrally formed by injection molding. The utility model discloses a sealing performance is better to can not produce because of the sealing performance of elasticity diaphragm circle is inefficacy and reveal.

Claims

1. The utility model provides a visual early warning nut, includes the nut casing, nut casing lower extreme opening and its inner surface are equipped with the screw thread, nut casing upper end is narrowed and is formed with the stand, and elastic diaphragm circle is established to nut casing upper end internal seal, and elastic diaphragm circles and has found pointer, its characterized in that: the stand upper end is still the ladder and is equipped with the observation post, the pointer is located in the stand, it is closed setting to survey the post, and is transparent material.

2. A visual early warning nut as claimed in claim 1, wherein: the elastic diaphragm ring comprises a sealing ring sleeve and an elastic diaphragm arranged at the bottom of the sealing ring sleeve, the elastic diaphragm can elastically float up and down, the pointer is arranged on the elastic diaphragm, a first step is arranged on the inner surface of the upper end of the nut shell, a convex ring is further arranged on the radial inner side of the first step, and a sealing ring of the elastic diaphragm ring is sleeved between the first step and the convex ring.

3. A visual early warning nut as claimed in claim 2, wherein: a second ladder is arranged below the first ladder, a gasket is arranged at the position of the second ladder, a convex wall is convexly arranged on the upper surface of the gasket, and the elastic diaphragm ring is sleeved on the convex wall.

4. A visual warning nut as claimed in claim 3, wherein: and a sealing sleeve is also arranged below the gasket, and two ends of the sealing sleeve are positioned between the threads and the gasket.

5. A visual early warning nut as claimed in any one of claims 1 to 4, wherein: the whole nut shell is made of transparent materials.