CN202002767U - Pressure gauge joint - Google Patents

Abstract

The pressure gauge joint is applied to connecting and fixing the pressure gauge. And an external thread is arranged at one end of the fixed joint, and a regular hexagon body is arranged on the outer wall at the other end of the fixed joint. A T-shaped connector is welded in a central hole at one end of the regular hexagon of the fixed joint. The T-shaped connector is cylindrical and is provided with a central hole, and the outer wall of the upper end of the cylinder is provided with a convex annular body; the other end of the T-shaped connecting body is provided with a movable connecting cap; the annular body of the T-shaped connector is arranged in the movable connecting cap; one end in the movable connecting cap is provided with an internal thread connected with the pressure gauge, and the other end in the movable connecting cap is provided with an annular body protruding inwards. The effect is as follows: the pressure gauge can be connected, the operation is convenient when the pressure gauge is replaced or installed, and the working efficiency is improved.

Description

A pressure gauge connector

technical field

The utility model relates to a mounting joint of a pressure gauge. In particular, it relates to a movable joint which is convenient for installation and replacement of pressure gauges.

Background technique

At present, replacing or installing pressure gauges is a relatively frequent maintenance operation on oil and gas field equipment. When installing, fix the external threaded body at the lower end of the pressure gauge to the internal thread of the pressure gauge joint. That is, one end of the pressure gauge joint has an external thread, and the other end has an internal thread for connecting the pressure gauge. There is a regular hexagon on the outer wall of the inner thread end, and the regular hexagon is used for fixing the wrench. In the past, when the pressure gauge was replaced and installed, because the pressure gauge connector was fixed on the control valve, when replacing or installing the pressure gauge, a wrench was used to clamp the regular square or regular hexagon at the lower part of the pressure gauge. Because the distance between the pressure gauge case and the regular hexagon is too close, it is easy to slip when using a wrench, and the pressure gauge joint is easily damaged, posing a safety hazard. Sometimes employees use their hands to tighten the pressure gauge, which can easily cause damage to the pressure gauge, which does not meet the standard operation and affects the operation speed of employees.

Utility model content

The purpose of the utility model is: to provide a pressure gauge joint, which can be connected to the pressure gauge, and is easy to operate when replacing or installing the pressure gauge, and improves work efficiency.

The technical solution adopted by the utility model is: the pressure gauge joint is mainly composed of a fixed joint, a T-shaped connector and a movable connection cap. The fixed joint has a central hole, and one end of the fixed joint has an external thread. There is a regular hexagon. It is characterized in that a T-shaped connecting body is welded in the central hole at one end of the regular hexagon of the fixed joint. The T-shaped connector is a cylinder with a central hole, and there is a protruding annular body on the outer wall of the upper end of the cylinder; there is a movable connection cap at the other end of the T-shaped connector; the annular body of the T-shaped connector is in the movable connection cap. The movable connection cap is in the shape of a regular hexagon, and one end of the movable connection cap has an internal thread for connecting the pressure gauge, and the other end of the movable connection cap has an inwardly protruding annular body.

In order to increase the tightness between the T-shaped connecting body and the movable connection cap, there is a sealing ring between the lower plane of the protruding annular body of the T-shaped connecting body and the upper plane of the inwardly protruding annular body of the movable connecting cap.

The rotation between the T-shaped connecting body and the movable connecting cap is flexible, and it is convenient for the staff to operate when replacing and installing the pressure gauge.

Beneficial effects of the utility model: the pressure gauge joint of the utility model can be connected with a pressure gauge, and the operation is convenient when replacing or installing the pressure gauge, and the working efficiency is improved. The field application proves that the pressure gauge joint is simple to manufacture, convenient and quick to operate, strong in practicability, and the transmission accuracy of the pressure gauge value is high, which completely eliminates the safety risk in the past when replacing and installing the pressure gauge.

Description of drawings

Figure 1 is a schematic cross-sectional view of the joint structure of the pressure gauge of the present invention.

In the figure, 1-fixed joint, 2-T-shaped connecting body, 3-movable connection cap.

Detailed ways

Embodiment 1: Taking a pressure gauge joint as an example, the utility model is further described in detail.

See Figure 1. The pressure gauge joint of the utility model is mainly composed of a fixed joint 1, a T-shaped connecting body 2 and a movable connection cap 3. The fixed joint 1 has a central hole with an inner diameter of 12.5 mm, an external thread of M20 is arranged at one end of the fixed joint 1 , and a regular hexagon is arranged on the outer wall of the other end of the fixed joint 1 . A T-shaped connecting body 2 is welded in the central hole at one end of the regular hexagon of the fixed joint 1 . Solder joints must be tightly sealed and able to withstand high pressure. The T-shaped connecting body 2 is a cylinder with a diameter of 12 mm. The T-shaped connecting body 2 has a central hole with a diameter of 6 mm. There is a protruding annular body on the upper outer wall of the cylinder. The outer diameter of the annular body is 17.5 mm and the thickness is 5 mm; The other end of the T-shaped connecting body 2 has a flexible connection cap 3. The annular body of the T-shaped connector 2 is in the movable connection cap 3 . The shape of the movable connection cap 3 is a regular hexagon, and one end of the movable connection cap 3 has an internal thread (M20) for connecting the pressure gauge, and the other end of the movable connection cap 3 has an inwardly protruding annular body, which is inwardly The protruding ring has an internal diameter of 12.5mm and a thickness of 5mm.

There is a rubber sealing ring between the lower plane of the protruding annular body of the T-shaped connecting body 2 and the upper plane of the inward protruding annular body of the movable connection cap 3 .

Claims (2)

1. pressure tapping, mainly by fixture splice (1), T shape connector (2) with flexibly connect cap (3) and form, fixture splice (1) has center pit, at an end of fixture splice (1) external thread is arranged, and on the outer wall of fixture splice (1) other end positive hexahedron is arranged; It is characterized in that: in the center pit of positive hexahedron one end of fixture splice (1), be welded with a T shape connector (2); T shape connector (2) has center pit for the cylinder bodily form, and the annular solid of protrusion is arranged at cylindrical upper end outer wall; The other end at T shape connector (2) has one to flexibly connect cap (3); The annular solid of T shape connector (2) is in flexibly connecting cap (3); Described flexible connection cap (3) is positive hexahedron shape, and an end has the manometric internal thread of connection in flexibly connecting cap (3), flexibly connects the oriented projecting inward annular solid of the other end in the cap (3).

2. pressure tapping according to claim 1 is characterized in that: the annular solid lower plane and the flexible connection cap (3) that protrude at T shape connector (2) have O-ring seal between the last plane of projecting inward annular solid.

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