阅读说明：本技术 一种船用油柜的压力表 (Pressure gauge of marine oil tank ) 是由 董琳 于 2020-05-12 设计创作，主要内容包括：本发明公开了一种船用油柜的压力表,包括表壳,表壳下部设有接头,接头通过腔体连接有膜盒,膜盒一侧通过连杆连接有机芯,机芯通过固定的螺纹杆及齿轮连接表盘上的指针；膜盒作为测量空气压力的敏感元件,主体为两块焊接在一起的显圆形波浪的膜片。本发明与现有技术相比的优点在于：有效适用于船体油柜的微小压力测量,接头连接有中空的金属管,将金属管插入油柜中,可高效准确的获得油柜中的压力数值,结构简单精巧,无易损件,外形美观大方,使用便捷。(The invention discloses a pressure gauge of a marine oil tank, which comprises a meter shell, wherein the lower part of the meter shell is provided with a joint, the joint is connected with a diaphragm capsule through a cavity, one side of the diaphragm capsule is connected with a movement through a connecting rod, and the movement is connected with a pointer on a dial plate through a fixed threaded rod and a gear; the diaphragm capsule is used as a sensitive element for measuring air pressure, and the main body of the diaphragm capsule is two circular wavy diaphragms which are welded together. Compared with the prior art, the invention has the advantages that: the pressure measurement device is effectively suitable for micro pressure measurement of a ship body oil tank, the joint is connected with the hollow metal pipe, the metal pipe is inserted into the oil tank, pressure numerical values in the oil tank can be efficiently and accurately obtained, the structure is simple and exquisite, no easily damaged parts exist, the appearance is attractive and elegant, and the use is convenient.)

1. The utility model provides a manometer of marine tank, includes watchcase (6), its characterized in that: the lower part of the watch case (6) is provided with a connector (7), the connector (7) is connected with a diaphragm capsule (5) through a cavity, one side of the diaphragm capsule (5) is connected with a movement (3) through a connecting rod (4), and the movement (3) is connected with a pointer (2) on the dial plate (1) through a fixed threaded rod and a gear;

the diaphragm capsule (5) is used as a sensitive element for measuring air pressure, and the main body of the diaphragm capsule is two diaphragms which are welded together and show circular waves.

2. The pressure gauge of the marine oil tank as claimed in claim 1, wherein: the dial plate (1) is provided with four diameters of 60 mm, 75 mm, 100 mm and 150mm, and is selected according to actual conditions.

3. The pressure gauge of the marine oil tank as claimed in claim 1, wherein: the accuracy grade of the pressure gauge of the marine oil tank comprises one of 1.6 grade or 2.5 grade.

4. The pressure gauge of the marine oil tank as claimed in claim 1, wherein: the range of the pressure gauge of the marine oil tank comprises 0-1.6, 0-2.5, 0-4, 0-6, 0-10, 0-16, 0-25, 0-40, -4-0, -6-0, -10-0, -16-0, -25-0, -40-0, -2, -3, -5, -8, -12 and-20 Kpa.

5. The pressure gauge of the marine oil tank as claimed in claim 1, wherein: the material of the diaphragm capsule (5) and the joint (7) is selected from one of copper alloy and stainless steel 316, and is selected according to actual conditions.

6. The pressure gauge of the marine oil tank as claimed in claim 1, wherein: the pressure gauge structure form of the marine oil tank comprises a radial direct mounting type pressure gauge, an axial belt front edge mounting type pressure gauge and an axial clamp type pressure gauge, and is selected according to actual conditions.

Technical Field

The invention relates to a pressure gauge, in particular to a pressure gauge of a marine oil tank.

Background

The pressure gauge is a meter which takes an elastic element as a sensitive element and measures and indicates the pressure higher than the ambient pressure, is very commonly applied and almost extends to all the fields of industrial processes and scientific researches. In the industrial process control and technical measurement process, the mechanical pressure gauge is more and more widely applied due to the characteristics of high mechanical strength, convenient production and the like of an elastic sensitive element of the mechanical pressure gauge.

When the oil tank of hull refuels, there is a large amount of air in the oil tank inside, leads to a large amount of air outwards ejecting oil because of the pressure reason, causes the waste of oil, and can cause environmental pollution and corresponding fine, has improved the cost input for the user.

Therefore, it is imperative to design a pressure gauge for a marine oil tank.

Disclosure of Invention

The invention aims to solve the technical problems that when the existing pressure gauge is used for carrying out pressure test on an oil tank, the fluctuation generated by the pressure gauge is small due to small airflow pressure in the oil tank, and the pressure in the oil tank cannot be measured efficiently and accurately, so that the oil is ejected out by the internal air when the oil tank is filled with oil, the environment is polluted, and the corresponding cost input is increased.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: a pressure gauge of a marine oil tank comprises a meter shell, wherein the lower part of the meter shell is provided with a joint, the joint is connected with a diaphragm capsule through a cavity, one side of the diaphragm capsule is connected with a movement through a connecting rod, and the movement is connected with a pointer on a dial plate through a fixed threaded rod and a gear;

the diaphragm capsule is used as a sensitive element for measuring air pressure, and the main body of the diaphragm capsule is two circular wavy diaphragms which are welded together.

Compared with the prior art, the invention has the advantages that: the pressure measurement device is effectively suitable for micro pressure measurement of a ship body oil tank, the joint is connected with the hollow metal pipe, the metal pipe is inserted into the oil tank, pressure numerical values in the oil tank can be efficiently and accurately obtained, the structure is simple and exquisite, no easily damaged parts exist, the appearance is attractive and elegant, and the use is convenient.

As a modification, the dial diameters are set to four kinds of 60, 75, 100 and 150mm, and are selected according to actual conditions.

As an improvement, the precision level includes one of 1.6 level or 2.5 level.

As an improvement, the range includes 0-1.6, 0-2.5, 0-4, 0-6, 0-10, 0-16, 0-25, 0-40, -4-0, -6-0, -10-0, -16-0, -25-0, -40-0, -2, -3, -5, -8, -12 and-20 Kpa.

As an improvement, the material of the diaphragm capsule and the joint is selected from copper alloy or stainless steel 316, and is selected according to the actual situation.

As improvement, the pressure gauge structure form of the marine oil tank comprises a radial direct mounting type, an axial front edge mounting type and an axial clamp type, and is selected according to actual conditions.

Drawings

Fig. 1 is a schematic structural diagram of a pressure gauge of a marine oil tank.

As shown in the figure: 1. dial 2, pointer 3, movement 4, connecting rod 5, capsule 6, watch case 7 and joint.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The invention is implemented in detail, the pressure gauge of the marine oil tank comprises a meter shell 6, the lower part of the meter shell 6 is provided with a joint 7, the joint 7 is connected with a diaphragm capsule 5 through a cavity, one side of the diaphragm capsule 5 is connected with a movement 3 through a connecting rod 4, and the movement 3 is connected with a pointer 2 on a dial 1 through a fixed threaded rod and a gear;

the diaphragm capsule 5 is used as a sensitive element for measuring air pressure, and the main body of the diaphragm capsule is two diaphragms which are welded together and show circular waves.

The dial 1 has four diameters of 60 mm, 75 mm, 100 mm and 150mm, and is selected according to actual conditions.

The accuracy grade of the pressure gauge of the marine oil tank comprises one of 1.6 grade or 2.5 grade.

The range of the pressure gauge of the marine oil tank comprises 0-1.6, 0-2.5, 0-4, 0-6, 0-10, 0-16, 0-25, 0-40, -4-0, -6-0, -10-0, -16-0, -25-0, -40-0, -2, -3, -5, -8, -12 and-20 Kpa.

The material of the diaphragm capsule 5 and the joint 7 is selected from one of copper alloy or stainless steel 316, and is selected according to actual conditions.

The pressure gauge structure form of the marine oil tank comprises a radial direct mounting type pressure gauge, an axial belt front edge mounting type pressure gauge and an axial clamp type pressure gauge, and is selected according to actual conditions.

The working principle of the invention is as follows: the joint of the pressure gauge is connected with a hollow metal pipe, the metal pipe is inserted into the oil tank, the pressure of the micro air flow in the oil tank enters the inner cavity of the diaphragm box from the joint, the free end of the diaphragm box is pressed to generate displacement, the gear of the movement is driven to rotate through the connecting rod, the pointer is driven to rotate through the connected threaded rod and the gear, the measured pressure value is indicated by the pointer, and the pressure value is indicated on the dial plate.

When the pointer returns to zero, the oil in the oil tank is full, the oil filling is stopped, and the pressure gauge and the metal pipe are drawn out, so that the oil tank is visual and convenient, and the oil is prevented from spilling to pollute the environment.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the invention, "plurality" means two or more unless explicitly specifically defined otherwise.

In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description herein, reference to the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.