CN210221378U - Glass cover for pressure gauge and density relay - Google Patents

Abstract

The utility model discloses a glass cover for on manometer and density relay, including the watchcase, still include the flange, flange an organic whole is formed on the watchcase, one side surface of keeping away from the watchcase on the flange is provided with the depressed part, and the surface of depressed part has cup jointed first sealing washer, the shroud has been cup jointed to the surface of flange, window glass has been cup jointed to the inner wall of shroud, one side of window glass is provided with the concave part, and the one side that keeps away from the watchcase on the inner wall of concave part and the flange offsets and has the second sealing washer. The utility model discloses, possess the leakproofness good, the advantage of the dismouting of being convenient for, solved the poor problem that leads to silicon oil to reveal easily of prior art leakproofness.

Description

Glass cover for pressure gauge and density relay

Technical Field

The utility model relates to a window glass mounting structure technical field specifically is a glass cover for on manometer and density relay.

Background

At present, an oil-filled pressure gauge and an oil-filled SF600 gas density relay adopt a cover cap 100, a window glass 200, a sealing ring 300, a supporting pad 400, a sealing ring 500 and a meter shell 600 in a structure, wherein the window glass 200 is pressed through the cover cap 100, the window glass 200 presses the sealing ring 300, the supporting pad 400 and the end face of the meter shell 600 to form sealing, and the sealing ring 300 is used for sealing silicone oil leakage. The sealing is characterized in that the sealing surface of the port of the watch case 600 is narrow, 4 leakage points are arranged, the connecting part of the port of the watch case 600 and the sealing ring 500, the connecting part of the sealing ring 500 and the supporting pad 400, the connecting part of the supporting pad 400 and the sealing ring 300 and the connecting part of the sealing ring 300 and the window glass 200 have greatly increased leakage possibility.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a glass cover for on manometer and density relay possesses that the leakproofness is good, the dismouting's of being convenient for advantage, has solved the poor problem that leads to silicon oil to reveal easily of prior art leakproofness.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a glass cover for on manometer and density relay, includes the watchcase, still includes the flange, flange an organic whole forms on the watchcase, the one side surface of keeping away from the watchcase on the flange is provided with the depressed part, and the surface of depressed part cup joints first sealing washer, the surface of flange has cup jointed the shroud, window glass has been cup jointed to the inner wall of shroud, one side of window glass is provided with the concave part, and the inner wall of concave part offsets with one side of keeping away from the watchcase on the flange and has the second sealing washer.

Preferably, the first sealing ring is an O-ring.

Preferably, the second sealing ring is an O-ring.

Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model discloses, constitute by watchcase, flange, depressed part, first sealing washer, shroud, window glass, concave part, second sealing washer, window glass end face has the concave part, and the second sealing washer assembly compresses tightly through the shroud and forms first sealed together with the flange terminal surface in concave part, has the depressed part in the design of watchcase port side in addition, and first sealing washer assembly compresses tightly through shroud and flange and forms the second and say sealedly in the depressed part. This design and adopt two O shape circles to seal, compare in prior art, and the reliability is stronger.

Drawings

FIG. 1 is a schematic structural diagram of a perspective view of the prior art of the present invention;

FIG. 2 is a schematic structural view of a technical perspective view of the present invention;

fig. 3 is a schematic structural view of a partial cross-sectional view of an assembled top view of the present invention;

fig. 4 is a schematic structural diagram of a top view of the flange of the present invention;

fig. 5 is a schematic structural diagram of a cross-sectional view of a top view of the window glass of the present invention.

In the figure: 1-a watch case, 2-a flange, 3-a sunken part, 4-a first sealing ring, 5-a cover cap, 6-a window glass, 7-a groove part and 8-a second sealing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 5, the present invention provides a technical solution: a glass cover used on a pressure gauge and a density relay comprises a watchcase 1, the watchcase 1 is a pressure gauge or a density relay, the glass cover further comprises a flange 2, the flange 2 is integrally formed on the watchcase 1, a concave part 3 is arranged on the outer surface of one side, far away from the watchcase 1, of the flange 2, a first sealing ring 4 is sleeved on the outer surface of the concave part 3, the first sealing ring 4 is an O-shaped ring, a cover cap 5 is sleeved on the outer surface of the flange 2, the first sealing ring 4 is assembled in the concave part 3 and is tightly pressed with the flange 2 through the cover cap 5 to form a second seal, a window glass 6 is sleeved on the inner wall of the cover cap 5, a groove part 7 is arranged on one side of the window glass 6, a second sealing ring 8 is abutted to one side, far away from the watchcase 1, of the inner wall of the groove part 7 and the flange 2, the second sealing ring 8 is an O-shaped, the two seals are matched, so that the sealing performance is greatly improved, and oil leakage is prevented.

The working principle is as follows: this a glass cover for on manometer and density relay uses, during the equipment, at first overlaps first sealing washer 4 on depressed part 3, blocks second sealing washer 8 in concave part 7 after that, and window glass 6 covers in shroud 5, finally sheathes in shroud 5, and under shroud 5's the effect that compresses tightly, it is sealed that formation twice, the reliability is stronger, the equipment of being convenient for simultaneously.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. A glass cover for pressure gauges and density relays, comprising a case (1), characterized in that: the novel glass window is characterized by further comprising a flange (2), wherein the flange (2) is integrally formed on the watchcase (1), a concave part (3) is arranged on the outer surface of one side, away from the watchcase (1), of the flange (2), a first sealing ring (4) is sleeved on the outer surface of the concave part (3), a cover cap (5) is sleeved on the outer surface of the flange (2), window glass (6) is sleeved on the inner wall of the cover cap (5), a groove part (7) is arranged on one side of the window glass (6), and a second sealing ring (8) is abutted to one side, away from the watchcase (1), of the inner wall of the groove part (7) and the flange (2).

2. A cover glass for a pressure gauge and density relay as defined in claim 1, wherein: the first sealing ring (4) is an O-shaped ring.

3. A cover glass for a pressure gauge and density relay as defined in claim 1, wherein: the second sealing ring (8) is an O-shaped ring.

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