External safety pressure relief device for vacuum equipment

Abstract

The utility model discloses an external safety pressure relief device for vacuum equipment, which belongs to the technical field of vacuum equipment, and comprises an electric pressure relief valve, the right end of the electric pressure relief valve is fixedly communicated with a pressure relief pipe, the left end of the electric pressure relief valve is fixedly communicated with a detection pipe, the outer surface of the detection pipe is provided with a detection hole, and the detection hole is communicated with the pressure relief pipe. A threaded pipe is fixedly connected to the inner wall of the detection hole, a sealing cap is arranged at the top end of the threaded pipe, an inner ring of the sealing cap is in threaded connection with the outer surface of the threaded pipe, an air pressure sensor is fixedly installed on the inner top wall of the sealing cap, and the bottom end of the air pressure sensor penetrates through the detection hole and extends into the detection pipe; a microcontroller is fixedly installed on the front face of the electric pressure release valve, and the left end of the detection pipe fixedly communicates with a flange. According to the external safety pressure relief device for the vacuum equipment, adjustment can be conducted according to different vacuum pressures, the automatic pressure relief effect is achieved, and the flexibility of the vacuum equipment during pressure relief is improved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum equipment, specifically an external safety pressure relief device for vacuum equipment. Background Technology

[0002] Vacuum equipment is a device that generates, improves, and maintains a vacuum. It includes vacuum application equipment and vacuum acquisition equipment. When vacuum equipment is working, it is often necessary to use a pressure relief device to release the pressure of the extracted air.

[0003] Currently, vacuum equipment typically uses mechanical pressure relief valves for automatic control during pressure relief. However, these valves are difficult to adjust according to different vacuum pressures, failing to achieve automatic pressure relief and reducing the flexibility of pressure relief in vacuum equipment. Therefore, those skilled in the art have provided an external safety pressure relief device for vacuum equipment to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide an external safety pressure relief device for vacuum equipment to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An external safety pressure relief device for vacuum equipment includes an electric pressure relief valve. A pressure relief pipe is fixedly connected to the right end of the electric pressure relief valve, and a detection pipe is fixedly connected to the left end of the electric pressure relief valve. A detection hole is formed on the outer surface of the detection pipe, and a threaded pipe is fixedly connected to the inner wall of the detection hole. A sealing cap is provided at the top end of the threaded pipe, and the inner ring of the sealing cap is threadedly connected to the outer surface of the threaded pipe. A pressure sensor is fixedly installed on the inner top wall of the sealing cap, and the bottom end of the pressure sensor penetrates the detection hole and extends into the interior of the detection pipe. A microcontroller is fixedly installed on the front of the electric pressure relief valve.

[0007] As a further improvement of this utility model: the left end of the detection tube is fixedly connected to a flange, and the left side of the flange is provided with multiple connection holes.

[0008] As a further improvement of this utility model: an annular recess is provided on the left side of the flange, and a sealing gasket is provided inside the annular recess.

[0009] As a further improvement of this utility model: a rotating block is provided above the sealing cap, and the bottom surface of the rotating block is fixedly connected to the upper surface of the sealing cap.

[0010] As a further improvement of this utility model: a nameplate is fixedly connected to the back of the electric pressure relief valve, and a warning sign is fixedly connected to the front of the electric pressure relief valve.

[0011] As a further improvement of this utility model: a grid plate is fixedly connected to the inner ring of the pressure relief pipe, and a hexagonal plate is fixedly connected to the top of the electric pressure relief valve.

[0012] As a further improvement of this utility model: the air pressure sensor is electrically connected to the microcontroller via a wire, and the microcontroller is electrically connected to the electric pressure relief valve via a wire.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This vacuum equipment uses an external safety pressure relief device. Through a detection tube, it can be connected to the vacuum equipment. Using the detection hole and threaded tube, a sealing cap and a pressure sensor can be installed. The pressure sensor automatically detects the internal pressure of the vacuum equipment. In conjunction with the external microcontroller of the electric pressure relief valve, the electric pressure relief valve can be started or stopped according to the pressure value of the vacuum equipment. It can be adjusted according to different vacuum pressures to achieve automatic pressure relief and improve the flexibility of pressure relief of the vacuum equipment. Attached Figure Description

[0015] Figure 1 A three-dimensional structural schematic diagram of an external safety relief device for vacuum equipment, shown from the front view.

[0016] Figure 2 A three-dimensional structural schematic diagram of an external safety relief device for vacuum equipment (rear view).

[0017] Figure 3 A cross-sectional view of the pressure relief pipe in an external safety pressure relief device for a vacuum equipment;

[0018] Figure 4 An external safety relief device for vacuum equipment Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Electric pressure relief valve; 2. Detection tube; 3. Detection hole; 4. Threaded tube; 5. Sealing cap; 6. Pressure sensor; 7. Microcontroller; 8. Pressure relief tube; 9. Grid plate; 10. Rotating block; 11. Warning sign; 12. Nameplate; 13. Hexagonal plate; 14. Flange; 15. Annular recess; 16. Sealing gasket; 17. Connection hole. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figures 1-4 In this embodiment of the present invention, an external safety pressure relief device for a vacuum device includes an electric pressure relief valve 1. The right end of the electric pressure relief valve 1 is fixedly connected to a pressure relief pipe 8, and the left end of the electric pressure relief valve 1 is fixedly connected to a detection pipe 2. A detection hole 3 is opened on the outer surface of the detection pipe 2. A threaded pipe 4 is fixedly connected to the inner wall of the detection hole 3. A sealing cap 5 is provided at the top of the threaded pipe 4. The inner ring of the sealing cap 5 is threadedly connected to the outer surface of the threaded pipe 4. A pressure sensor 6 is fixedly installed on the inner top wall of the sealing cap 5. The bottom end of the pressure sensor 6 passes through the detection hole 3 and extends into the interior of the detection pipe 2. A microcontroller 7 is fixedly installed on the front of the electric pressure relief valve 1.

[0023] The left end of the detection tube 2 is fixedly connected to a flange 14. Multiple connection holes 17 are provided on the left side of the flange 14. An annular recess 15 is provided on the left side of the flange 14. A sealing gasket 16 is provided inside the annular recess 15. A rotating block 10 is provided above the sealing cap 5. The bottom surface of the rotating block 10 is fixedly connected to the upper surface of the sealing cap 5. The flange 14 and the connection holes 17 facilitate connection and installation with vacuum equipment. The annular recess 15 and the sealing gasket 16 ensure a more secure seal during connection. The rotating block 10 facilitates the rotation of the sealing cap 5.

[0024] A nameplate 12 is fixedly connected to the back of the electric pressure relief valve 1, a warning sign 11 is fixedly connected to the front of the electric pressure relief valve 1, a mesh plate 9 is fixedly connected to the inner ring of the pressure relief pipe 8, and a hexagonal plate 13 is fixedly connected to the top of the electric pressure relief valve 1. The air pressure sensor 6 is electrically connected to the microcontroller 7 through a wire, and the microcontroller 7 is electrically connected to the electric pressure relief valve 1 through a wire. The nameplate 12 can be used to understand the product, and the mesh plate 9 can be used to block external debris.

[0025] The working principle of this utility model is as follows: First, it is connected to the pressure relief component of the vacuum equipment through flange 14. Then, the pressure relief device is connected to the power supply. Then, the pressure sensor 6 can detect the internal pressure of the vacuum equipment and transmit it to the microcontroller 7 for analysis and processing. The microcontroller 7 can display the pressure value. Then, the microcontroller 7 starts or closes the electric pressure relief valve 1 according to the pressure value of the vacuum equipment. It can then automatically control the opening and closing of the electric pressure relief valve 1, which will flexibly and automatically relieve pressure.

[0026] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalent elements of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An external safety pressure relief device for vacuum equipment, comprising an electrically operated pressure relief valve (1), characterized in that, The right end of the electric pressure relief valve (1) is fixedly connected to a pressure relief pipe (8), and the left end of the electric pressure relief valve (1) is fixedly connected to a detection pipe (2). The outer surface of the detection pipe (2) is provided with a detection hole (3). The inner wall of the detection hole (3) is fixedly connected to a threaded pipe (4). The top end of the threaded pipe (4) is provided with a sealing cap (5). The inner ring of the sealing cap (5) is threadedly connected to the outer surface of the threaded pipe (4). The inner top wall of the sealing cap (5) is fixedly installed with a pressure sensor (6). The bottom end of the pressure sensor (6) passes through the detection hole (3) and extends into the interior of the detection pipe (2). The front of the electric pressure relief valve (1) is fixedly installed with a microcontroller (7).

2. The external safety pressure relief device for vacuum equipment according to claim 1, characterized in that, The left end of the detection tube (2) is fixedly connected to a flange (14), and the left side of the flange (14) has multiple connection holes (17).

3. An external safety pressure relief device for vacuum equipment according to claim 2, characterized in that, The flange (14) has an annular recess (15) on its left side, and a sealing gasket (16) is provided inside the annular recess (15).

4. An external safety pressure relief device for vacuum equipment according to claim 1, characterized in that, A rotating block (10) is provided above the sealing cap (5), and the bottom surface of the rotating block (10) is fixedly connected to the upper surface of the sealing cap (5).

5. An external safety pressure relief device for vacuum equipment according to claim 1, characterized in that, A nameplate (12) is fixedly connected to the back of the electric pressure relief valve (1), and a warning sign (11) is fixedly connected to the front of the electric pressure relief valve (1).

6. An external safety pressure relief device for vacuum equipment according to claim 1, characterized in that, The inner ring of the pressure relief pipe (8) is fixedly connected to a mesh plate (9), and the top of the electric pressure relief valve (1) is fixedly connected to a hexagonal plate (13).

7. An external safety pressure relief device for vacuum equipment according to claim 1, characterized in that, The pressure sensor (6) is electrically connected to the microcontroller (7) via a wire, and the microcontroller (7) is electrically connected to the electric pressure relief valve (1) via a wire.

Images