Explosion-proof electric contact pressure gauge

Abstract

The utility model discloses an explosion-proof electric contact pressure gauge which comprises a pressure gauge body, a mounting block is arranged at the top of a shell of the pressure gauge body, a fan-shaped protective cover is arranged on the mounting block, and an explosion-proof alarm device is arranged at the bottom of the pressure gauge body. The top surface of the pressure gauge body is provided with an explosion-proof plate structure. The fan-shaped protective cover and the explosion-proof plate are arranged on the pressure gauge body, external pressure can be relieved by the fan-shaped protective cover, the arc-shaped inner cover and the explosion-proof plate after being generated, pressure can be in contact with the arc surface of the arc-shaped inner cover after pressure is also generated in the pressure gauge, and the pressure can be relieved due to the material characteristics of transparent epoxy resin, so that the explosion-proof performance of the pressure gauge is improved. The breaking risk of the pressure gauge body is reduced, and the explosion-proof effect is achieved; and by arranging the anti-explosion alarm device, when pressure is generated inside, a worker can be prompted in time, the pressure gauge is treated at the first time, and explosion of the pressure gauge is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure gauges, and particularly relates to an explosion-proof electric contact pressure gauge. Background Technique

[0002] The electric contact pressure gauge is a classification in measuring equipment. The electric contact pressure gauge is widely used in industrial departments such as petroleum, chemical industry, metallurgy, power stations, machinery, etc. or in the matching of electromechanical equipment to measure the pressure of various fluid media without explosion hazards.

[0003] The existing electric contact pressure gauges do not have an explosion-proof structure and an alarm function. When the pressure value exceeds the upper limit of the electric contact pressure gauge, the viewing plate of the electric contact pressure gauge will burst, causing harm to the staff; and the existing electric contact pressure gauges do not have a protection structure on the outside, and cannot provide good protection for the outside of the pressure gauge. Content of the Utility Model

[0004] The main purpose of the utility model is to provide an explosion-proof electric contact pressure gauge to solve the above technical problems.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an explosion-proof electric contact pressure gauge, including a pressure gauge body, an installation block is provided at the top of the outer shell of the pressure gauge body, a sector-shaped protective cover is arranged on the installation block, and an explosion-proof alarm device is provided at the bottom of the pressure gauge body; an explosion-proof plate structure is arranged on the top surface of the pressure gauge body.

[0006] Based on the above solution and as a preferred solution of the above solution: the explosion-proof alarm device includes a pipeline, one end of the pipeline is provided with an installation cavity; a top block is arranged in the pipeline, a first push rod is arranged at the end of the top block, a moving plate is arranged at the end of the first push rod, a first conductive convex block is arranged on the moving plate, a conductive groove is arranged on one inner wall of the installation cavity, a second conductive convex block is arranged in the conductive groove, a buzzer is arranged on one side of the conductive groove, and the buzzer is electrically connected to the second conductive convex block.

[0007] Based on the above solution and as a preferred solution of the above solution: a first spring is arranged on the first push rod; second push rods are arranged on both sides of the first conductive convex block, spring grooves are arranged on the outer periphery of the ends of the second push rods, and second springs are arranged on the second push rods.

[0008] Based on the above solution and as a preferred solution of the above solution: one end of the sector-shaped protective cover is provided with a connecting arm, a connecting shaft is arranged on the installation block, and the connecting arm and the connecting shaft are hinged; a high-voltage refractory plate and an explosion-proof beryllium bronze layer are arranged on the sector-shaped protective cover.

[0009] Based on the above solution and as a preferred solution to the above solution: The explosion-proof plate structure includes an explosion-proof plate and an arc-shaped inner cover. A filling cavity is provided on the arc-shaped inner cover, and the filling cavity is filled with a transparent epoxy resin material.

[0010] The beneficial effects of the present utility model are as follows: A sector-shaped protective cover and an explosion-proof plate structure are provided on the pressure gauge body of the present utility model. When external pressure is generated, it will be relieved by the sector-shaped protective cover, the arc-shaped inner cover, and the explosion-proof plate. When internal pressure is also generated, the pressure will contact the arc surface of the arc-shaped inner cover. Due to the material properties of the transparent epoxy resin, the pressure can be relieved, reducing the risk of the pressure gauge body cracking and achieving an explosion-proof effect. By setting an explosion-proof alarm device, when internal pressure is generated, it can promptly notify the staff and handle the pressure gauge in a timely manner to avoid the explosion of the pressure gauge. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0012] Figure 2 is a side view of the pressure gauge body of the present utility model;

[0013] Figure 3 is the present utility model Figure 1 The enlarged schematic diagram at A in. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] To make the objectives, technical solutions, and advantages of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments. However, the specific embodiments and examples described below are for illustrative purposes only and are not intended to limit the present utility model.

[0015] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

[0016] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0017] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0018] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0019] Referring to the attached drawings Figures 1 to 3 , an explosion-proof electric contact pressure gauge in this embodiment includes a pressure gauge body 1. An installation block 10 is provided at the top of the outer shell of the pressure gauge body 1. A sector-shaped protective cover 2 is arranged on the installation block 10. An explosion-proof alarm device is provided at the bottom of the pressure gauge body 1; an explosion-proof plate structure is provided on the top surface of the pressure gauge body 1.

[0020] Furthermore, the explosion-proof alarm device includes a pipeline 3. One end of the pipeline 3 is provided with an installation cavity 4; a top block 30 is arranged in the pipeline 3. A first ejector rod 5 is provided at the end of the top block 30. A moving plate 50 is provided at the end of the first ejector rod 5. A first conductive bump 51 is arranged on the moving plate 50. A conductive groove 42 is arranged on one inner wall of the installation cavity 4. A second conductive bump 43 is arranged in the conductive groove 42. A buzzer 6 is arranged on one side of the conductive groove 42. The buzzer 6 is electrically connected to the second conductive bump 43.

[0021] Further, a first spring 31 is provided on the first ejector rod 5; second ejector rods 52 are provided on both sides of the first conductive bump 51, a spring groove 40 is provided on the outer periphery of the end of the second ejector rod 52, and a second spring 41 is provided on the second ejector rod 52.

[0022] Further, a connecting arm 20 is provided at one end of the sector-shaped protective cover 2, a connecting shaft 100 is provided on the mounting block 10, and the connecting arm 20 and the connecting shaft 100 are hinged; a high-voltage fireproof board 21 and an explosion-proof beryllium bronze layer 22 are provided on the sector-shaped protective cover 2.

[0023] Further, the explosion-proof plate structure includes an explosion-proof plate 7 and an arc-shaped inner cover 8, a filling cavity 80 is formed in the arc-shaped inner cover 8, and a transparent epoxy resin material is filled in the filling cavity 80.

[0024] In this embodiment, a sector-shaped protective cover 2 and an explosion-proof plate structure are provided on the pressure gauge body 1. When external pressure is generated, it will be relieved by the sector-shaped protective cover 2, the arc-shaped inner cover 8 and the explosion-proof plate 7. When internal pressure is also generated, the pressure will contact the arc surface of the arc-shaped inner cover 8. Due to the material properties of the transparent epoxy resin, the pressure can be relieved, reducing the risk of the pressure gauge body 1 cracking and achieving an explosion-proof effect.

[0025] Working principle of the explosion-proof alarm device: Connect the power supply of the pressure gauge body 1. When pressure is generated inside the pressure gauge body 1, the top block 30 is pushed by the pressure, the first spring 31 is compressed. With the cooperation of the first ejector rod 5 and the moving plate 50, the first ejector rod 5 and the moving plate 50 move upward. The second ejector rod 52 moves in the spring groove 50, the second spring 41 is compressed, and then the first conductive bump 51 moves upward and inserts into the conductive groove 42 to contact the second conductive bump 43. At this time, the buzzer 6 makes a sound due to the circuit being connected, reminding the staff that the pressure of the pressure gauge body 1 is too high, and can prompt the staff in time to process the pressure gauge body 1 immediately to avoid the explosion of the pressure gauge.

[0026] The above embodiments are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An explosion-proof electric contact pressure gauge, characterized in that: It comprises a pressure gauge body, a mounting block is arranged on the top of the shell of the pressure gauge body, a fan-shaped protective cover is arranged on the mounting block, an explosion-proof alarm device is arranged at the bottom of the pressure gauge body; and an explosion-proof plate structure is arranged on the top surface of the pressure gauge body.

2. An explosion-proof electric contact pressure gauge according to claim 1, characterized in that: The explosion-proof alarm device includes a pipeline, one end of which is provided with a mounting cavity; a top block is provided in the pipeline, a first top rod is provided at the end of the top block, a movable plate is provided at the end of the first top rod, a first conductive protrusion is provided on the movable plate, a conductive groove is provided on the inner wall of one side of the mounting cavity, a second conductive protrusion is provided in the conductive groove, a buzzer is provided on one side of the conductive groove, and the buzzer is electrically connected to the second conductive protrusion.

3. An explosion-proof electric contact pressure gauge according to claim 2, characterized in that: A first spring is arranged on the first push rod; second push rods are arranged on both sides of the first conductive protrusion, a spring groove is arranged on the outer periphery of the end of the second push rod, and a second spring is arranged on the second push rod.

4. The explosion-proof electric contact pressure gauge according to claim 1, characterized in that: A connecting arm is provided at one end of the fan-shaped protective cover, a connecting shaft is provided on the mounting block, and the connecting arm and the connecting shaft are hinged; a high-pressure fire-resistant plate and an explosion-proof beryllium bronze layer are provided on the fan-shaped protective cover.

5. The explosion-proof electric contact pressure gauge according to claim 1, characterized in that: The explosion-proof plate structure comprises an explosion-proof plate and an arc-shaped inner cover. A filling cavity is provided on the arc-shaped inner cover, and the filling cavity is filled with a transparent epoxy resin material.

Images