Sealing device for calibrating atmospheric pressure gauge

Abstract

The utility model relates to the technical field of atmospheric pressure gauge calibration, in particular to a sealing device for atmospheric pressure gauge calibration, which comprises a constant-temperature box body for calibration, and the base surface of the constant-temperature box body is respectively connected with a sealing door and a controller. Sealing structures are arranged in the sealing door and at the edge of the front end of the constant-temperature box body, a detection table is fixedly mounted at the bottom end in the constant-temperature box body, and a to-be-detected atmospheric pressure gauge is placed at the top of the detection table; according to the utility model, a sealing effect can be provided for the atmospheric pressure gauge which is in calibration in the constant-temperature box body, so that the constant-temperature box body is isolated from the internal cavity environment of the sealing door, and the sealing door is very practical.

Description

Technical Field

[0001] The utility model relates to the technical field of atmospheric pressure gauge calibration, in particular to a sealing device for atmospheric pressure gauge calibration. Background Art

[0002] A barometer is an instrument used to measure the pressure in Earth's atmosphere. Objects in the atmosphere are subject to the pressure exerted by air molecules, a force known as atmospheric pressure. A barometer uses a specific mechanism to measure this pressure and convert it into a readable value or indication.

[0003] The operating principle of a barometric pressure gauge is based on the effect of atmospheric pressure on a sensitive element within the instrument. When atmospheric pressure changes, the sensitive element undergoes a corresponding deformation or displacement, which is converted into a readable value or indication through mechanical or electronic means. Different types of barometric pressure gauges may utilize different sensitive elements and conversion mechanisms, but the basic principles remain similar.

[0004] Barometric pressure gauges require calibration before use or after extended periods of use. During calibration, some instruments are placed in a thermostat to simulate or control specific environmental conditions, such as temperature. A thermostat provides a stable temperature environment, helping to reduce the impact of temperature fluctuations on calibration results. The use of a thermostat is particularly important when calibrating temperature-sensitive barometric pressure gauges.

[0005] However, most of the thermostats currently used for atmospheric pressure gauge calibration are sealed with doors, which have a poor sealing effect and can easily cause external gas to enter the box, affecting the calibration conditions of the atmospheric pressure gauge and further affecting the calibration of the atmospheric pressure gauge itself. Utility Model Content

[0006] The purpose of the present utility model is to provide a sealing device for calibrating an atmospheric pressure gauge, so as to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a sealing device for calibrating an atmospheric pressure gauge, comprising a constant temperature box for calibration, wherein the base surface of the constant temperature box is respectively connected to a sealing door and a controller, a sealing structure is provided inside the sealing door and at the front edge of the constant temperature box, a testing platform is fixedly installed at the bottom end of the interior of the constant temperature box, and an atmospheric pressure gauge to be tested is placed on the top of the testing platform.

[0008] As a preferred solution of the present invention, a sealing device for calibrating an atmospheric pressure gauge includes a constant temperature box for calibration, characterized in that: the base surface of the constant temperature box is respectively connected to a sealing door and a controller, a sealing structure is provided inside the sealing door and at the front edge of the constant temperature box, a detection platform is fixedly installed at the bottom end of the interior of the constant temperature box, and the atmospheric pressure gauge to be tested is placed on the top of the detection platform.

[0009] As a preferred solution of the present invention, an extrusion spring is fixedly connected between the two longitudinal sealing blocks, and a mounting block is fixedly connected to one side of the extrusion spring located on the longitudinal sealing block, and the mounting block is fixedly installed inside the notch.

[0010] As a preferred solution of the present invention, the bottom of one side of the upper transverse sealing block is fixedly connected to the telescopic column end of the telescopic cylinder, and the top of one side of the lower transverse sealing block is fixedly connected to the telescopic column end of the telescopic cylinder.

[0011] As a preferred solution of the present invention, vertical holes are vertically opened on the left and right sides of the transverse sealing block, and vertical rods are slidably connected inside the vertical holes.

[0012] As a preferred solution of the present invention, guide sliders are fixedly provided on the left and right sides of the transverse sealing block, guide slots are opened on the left and right inner walls of the sealing door, and the guide sliders and the guide slots are slidably connected.

[0013] As a preferred solution of the present invention, a detection device is fixedly installed on the inner shell of the constant temperature box, the detection device is a temperature and humidity detector, and the detection device and the controller are electrically connected.

[0014] Beneficial effect: In view of the problem that most of the thermostats used for atmospheric pressure gauge calibration in the prior art are sealed with a door body, and the sealing effect is not obvious, which easily causes external gas to enter the box body and affect the calibration conditions of the atmospheric pressure gauge, and further affect the calibration of the atmospheric pressure gauge itself, in the utility model, a sealing structure is provided on the door body of the thermostat used for atmospheric pressure gauge calibration. The sealing structure is designed by a transverse sealing block driven by a telescopic cylinder and a longitudinal sealing block controlled by an extrusion spring. On the one hand, the transverse sealing block is driven by the telescopic cylinder to move upward and downward respectively, and on the other hand, the longitudinal sealing block is moved by the spring force of the extrusion spring itself, so that the transverse sealing block and the thermostat are finally sealed by the transverse sealing block and the longitudinal sealing block to ensure that the temperature and humidity inside the thermostat will not change, which is very practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall three-dimensional diagram of the utility model.

[0016] Figure 2 This is a three-dimensional view of the sealed door of the present invention after it is opened.

[0017] Figure 3 It is a three-dimensional diagram of the sealing structure of the present invention.

[0018] Figure 4 It is a three-dimensional diagram of the sealing door of the present invention.

[0019] In the figure: 1. Constant temperature box; 2. Sealing door; 3. Controller; 4. Sealing structure; 41. Horizontal sealing block; 42. Notch; 43. Longitudinal sealing block; 44. Extrusion spring; 45. Mounting block; 46. Telescopic cylinder; 47. Telescopic column; 5. Testing table; 6. Atmospheric pressure gauge; 7. Vertical hole; 8. Vertical rod; 9. Guide slider; 10. Guide chute; 11. Testing device. DETAILED DESCRIPTION

[0020] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-4 The utility model provides a technical solution: a sealing device for calibrating an atmospheric pressure gauge, comprising a constant temperature box 1 for calibration, the base surface of the constant temperature box 1 being connected to a sealing door 2 and a controller 3 respectively, a sealing structure 4 being provided inside the sealing door 2 and at the front edge of the constant temperature box 1, a testing platform 5 being fixedly installed at the bottom end of the interior of the constant temperature box 1, an atmospheric pressure gauge 6 to be tested being placed on the top of the testing platform 5, and subsequent calibration being performed by placing the atmospheric pressure gauge 6 on the testing platform 5 inside the constant temperature box 1.

[0022] Specifically, the sealing structure 4 includes a transverse sealing block 41 provided on the upper and lower sides of the sealing door 2, a notch 42 is provided at the rear position of the transverse sealing block 41, a longitudinal sealing block 43 is provided inside the notch 42, and the longitudinal sealing block 43 and the notch 42 are connected by a sliding connection; an extrusion spring 44 is fixedly connected between the two longitudinal sealing blocks 43, and a mounting block 45 is fixedly connected to one side of the extrusion spring 44 on the longitudinal sealing block 43, and the mounting block 45 is fixedly installed inside the notch 42; the bottom of one side of the upper transverse sealing block 41 is fixedly connected to the end of the telescopic column 47 of the telescopic cylinder 46, and the top of the lower transverse sealing block 41 is fixedly connected to the end of the telescopic column 47 of the telescopic cylinder 46 ; Vertical holes 7 are vertically opened on the left and right sides of the transverse sealing block 41, and vertical rods 8 are slidably connected inside the vertical holes 7; guide sliders 9 are fixedly set on the left and right sides of the transverse sealing block 41, and guide grooves 10 are opened on the left and right inner walls of the sealing door 2, and the guide sliders 9 and the guide grooves 10 are slidably connected; on the one hand, the transverse sealing block 41 is driven to move upward and downward respectively by the telescopic cylinder 46, and on the other hand, the longitudinal sealing block 43 is moved by the spring force of the extrusion spring 44 itself, so that the transverse sealing block 41 and the longitudinal sealing block 43 are finally used to seal the connection position between the door body and the constant temperature box to ensure that the temperature and humidity inside the constant temperature box will not change.

[0023] Specifically, a detection device 11 is fixedly installed on the inner shell of the constant temperature box 1. The detection device 11 is a temperature and humidity detector, and the detection device 11 is electrically connected to the controller 3. The temperature and humidity detector monitors the temperature and humidity changes inside the constant temperature box 1 in real time, thereby monitoring whether the temperature and humidity inside the constant temperature box 1 change, and thus judging the sealing of the constant temperature box 1.

[0024] In summary, the present invention can provide a sealing effect for the atmospheric pressure gauge being calibrated inside the constant temperature box 1, thereby isolating the constant temperature box 1 and the internal cavity environment of the sealed door 2, which is very practical.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing device for calibrating an atmospheric pressure gauge, comprising a constant temperature box (1) for calibration, characterized in that: The base surface of the constant temperature box (1) is respectively connected to a sealing door (2) and a controller (3); a sealing structure (4) is provided inside the sealing door (2) and at the front edge of the constant temperature box (1); a detection platform (5) is fixedly installed at the bottom end of the interior of the constant temperature box (1); and an atmospheric pressure gauge (6) to be detected is placed on the top of the detection platform (5).

2. The sealing device for atmospheric pressure gauge calibration according to claim 1, characterized in that: The sealing structure (4) comprises transverse sealing blocks (41) arranged on the upper and lower sides of the sealing door (2), a notch (42) is provided at a rear position on the transverse sealing block (41), a longitudinal sealing block (43) is provided inside the notch (42), and the longitudinal sealing block (43) and the notch (42) are connected by sliding.

3. The sealing device for atmospheric pressure gauge calibration according to claim 2, characterized in that: An extrusion spring (44) is fixedly connected between the two longitudinal sealing blocks (43), and a mounting block (45) is fixedly connected to one side of the extrusion spring (44) located on the longitudinal sealing block (43). The mounting block (45) is fixedly installed inside the notch (42).

4. The sealing device for atmospheric pressure gauge calibration according to claim 2, characterized in that: The bottom of one side of the upper transverse sealing block (41) is fixedly connected to the end of the telescopic column (47) of the telescopic cylinder (46), and the top of one side of the lower transverse sealing block (41) is fixedly connected to the end of the telescopic column (47) of the telescopic cylinder (46).

5. The sealing device for atmospheric pressure gauge calibration according to claim 2, characterized in that: Vertical holes (7) are vertically opened on the left and right sides of the transverse sealing block (41), and vertical rods (8) are slidably connected inside the vertical holes (7).

6. The sealing device for atmospheric pressure gauge calibration according to claim 2, characterized in that: Guide slide blocks (9) are fixedly provided on the left and right sides of the transverse sealing block (41), guide slide grooves (10) are provided on the left and right inner walls of the sealing door (2), and the guide slide blocks (9) and the guide slide grooves (10) are slidably connected.

7. The sealing device for atmospheric pressure gauge calibration according to claim 1, characterized in that: A detection device (11) is fixedly mounted on the inner shell of the constant temperature box (1). The detection device (11) is a temperature and humidity detector, and the detection device (11) and the controller (3) are electrically connected.

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