A small digital display barometer
By introducing an infrared human body sensor and an automatic opening design with an explosion-proof glass plate into a small digital barometer, the problem of surface oil stains caused by manual operation is solved, achieving automatic opening and clear display, thus improving performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CIXI BAISHENG HARDWARE TOOLS CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-02
AI Technical Summary
Existing small digital barometers require manual opening during inflation, resulting in oil stains on the surface, which affects observation and cleaning, and has low performance.
A small digital barometer was designed, which uses a human detection mechanism consisting of an infrared human body sensor and an explosion-proof glass plate to automatically open the barometer, avoiding manual operation. The barometer displays the value on an LCD screen and is protected by an outer protective strip.
It eliminates the need for manual operation, ensuring the cleanliness of the barometer surface and the clarity of the readings, thus improving usability.
Smart Images

Figure CN224317219U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of digital barometer technology, specifically to a small digital barometer. Background Technology
[0002] Currently, digital tire pressure gauges are being used more and more widely. For example, they are used in air pumps or inflators to monitor the tire pressure in real time, thus providing a clear and accurate understanding of the tire pressure and preventing it from being too low or too high, effectively protecting the tires.
[0003] Existing small digital tire pressure gauges are usually installed on the inflation hose to facilitate observation of tire pressure during inflation. However, during inflation, the gauge needs to be manually turned on by pressing a button. Manual operation can easily lead to the gauge surface becoming covered with oil stains, making it difficult to observe the readings and clean the surface, resulting in low performance. Therefore, there is an urgent need for a small digital tire pressure gauge. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] The technical problem to be solved by this utility model is to provide a small digital display barometer in light of the current state of the technology.
[0006] (II) Technical Solution
[0007] This utility model is achieved through the following technical solution: This utility model proposes a small digital display barometer, including a barometer body, a display screen installed inside the barometer body, an installation cavity opened on the barometer body, an infrared human body sensor installed in the installation cavity, an explosion-proof glass plate provided on one side of the infrared human body sensor, a battery compartment opened on the back wall of the barometer body, and a controller provided on one side of the battery compartment.
[0008] Furthermore, the display screen is embedded in the barometer body, and the display screen is a liquid crystal display.
[0009] Furthermore, the mounting cavity is formed on the barometer body, the infrared human body sensor is fixed in the mounting cavity by screws, and the explosion-proof glass plate is bonded in the mounting cavity.
[0010] Furthermore, the battery compartment is formed on the barometer body, and a battery cover is installed on the battery compartment via a slot.
[0011] Furthermore, the controller is electrically connected to the display screen and the infrared human body sensor.
[0012] Furthermore, a protective strip is adhered to the outer wall of the barometer body, and the protective strip protrudes from the surface of the display screen.
[0013] Furthermore, a connection port is reserved on one side wall of the pressure gauge body, a connection nozzle is installed in the connection port, and a connection thread is provided on the outer wall of the connection nozzle.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, this utility model has the following advantages:
[0016] This invention designs a human detection mechanism consisting of an infrared human body sensor and an explosion-proof glass plate. During the use of the barometer, the infrared human body sensor can detect the operator. When a person is detected, the barometer will automatically turn on without manual operation, thus ensuring the cleanliness of the barometer surface and the clarity of the displayed values. At the same time, the explosion-proof glass plate can protect the infrared human body sensor while ensuring its normal operation, making it easy for workers to read the readings and providing high performance. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a small digital barometer according to the present invention;
[0018] Figure 2 This is a schematic diagram of the structure of an infrared human body sensor in a small digital barometer according to the present invention;
[0019] Figure 3 This is a bottom view of a small digital barometer described in this utility model.
[0020] The annotations in the attached figures are explained as follows:
[0021] 1. Pressure gauge body; 2. Connecting nozzle; 3. Protective strip; 4. Display screen; 5. Explosion-proof glass plate; 6. Battery compartment; 7. Controller; 8. Connecting port; 9. Infrared human body sensor; 10. Mounting cavity. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0023] like Figures 1-3As shown, a small digital barometer in this embodiment includes a barometer body 1, a display screen 4 installed inside the barometer body 1 to display the measured values of the barometer body 1, an installation cavity 10 on the barometer body 1 to provide installation space for an infrared human body sensor, an infrared human body sensor 9 installed inside the installation cavity 10 to detect people, an explosion-proof glass plate 5 is provided on one side of the infrared human body sensor 9 to protect the infrared human body sensor, a battery compartment 6 is provided on the back wall of the barometer body 1, the battery in the battery compartment 6 provides the required power to the barometer body 1, and a controller 7 is provided on one side of the battery compartment 6 to control the operation of the barometer body 1.
[0024] like Figures 1-3 In this embodiment, the display screen 4 is embedded in the barometer body 1. The display screen 4 is a liquid crystal display. The mounting cavity 10 is formed on the barometer body 1. The infrared human body sensor 9 is fixed in the mounting cavity 10 by screws. The explosion-proof glass plate 5 is bonded in the mounting cavity 10. During the use of the barometer, the infrared human body sensor 9 can detect the operator. When a person is detected, the barometer will automatically open without manual opening, thus ensuring the cleanliness of the barometer surface and the clarity of the displayed value. At the same time, the explosion-proof glass plate 5 can protect the infrared human body sensor while ensuring its normal operation, making it easy for the staff to read the value and providing high performance.
[0025] like Figures 1-3 In this embodiment, the battery compartment 6 is formed on the pressure gauge body 1. A battery cover is installed on the battery compartment 6 through a slot. The controller 7 is electrically connected to the display screen 4 and the infrared human body sensor 9. A protective strip 3 is adhered to the outer wall of the pressure gauge body 1. The protective strip 3 protrudes from the surface of the display screen 4. A connection port 8 is reserved on one side wall of the pressure gauge body 1. A connection nozzle 2 is installed in the connection port 8. A connection thread is provided on the outer wall of the connection nozzle 2. The pressure gauge body 1 is installed on the inflation tube through the connection nozzle 2. During the inflation process, the pressure gauge body 1 detects the air pressure in the tire. The display screen 4 displays the detected value. The battery in the battery compartment 6 provides the required power to the pressure gauge body 1. The protective strip 3 can protect the pressure gauge body 1 from impact.
[0026] The specific implementation process of this embodiment is as follows: First, the air pressure gauge body 1 is installed on the inflation tube through the connecting nozzle 2. During the inflation process, the infrared human body sensor 9 can detect the operator. When a person is detected, the air pressure gauge will be automatically turned on without manual operation, thus ensuring the cleanliness of the air pressure gauge surface and the clarity of the displayed value. At the same time, the explosion-proof glass plate 5 can protect the infrared human body sensor while ensuring its normal operation. During the inflation process, the air pressure gauge body 1 detects the air pressure in the tire, and the display screen 4 displays the detected value for easy reading by the operator. The protective strip 3 can protect the air pressure gauge body 1 from impact.
[0027] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A small digital barometer, characterized in that: The device includes a barometer body (1), a display screen (4) installed inside the barometer body (1), an installation cavity (10) opened on the barometer body (1), an infrared human body sensor (9) installed inside the installation cavity (10), an explosion-proof glass plate (5) provided on one side of the infrared human body sensor (9), a battery compartment (6) opened on the back wall of the barometer body (1), and a controller (7) provided on one side of the battery compartment (6).
2. The small digital barometer according to claim 1, characterized in that: The display screen (4) is embedded in the barometer body (1), and the display screen (4) is a liquid crystal display.
3. A small digital barometer according to claim 2, characterized in that: The mounting cavity (10) is formed on the barometer body (1), the infrared human body sensor (9) is fixed in the mounting cavity (10) by screws, and the explosion-proof glass plate (5) is bonded in the mounting cavity (10).
4. A small digital barometer according to claim 3, characterized in that: The battery compartment (6) is formed on the barometer body (1), and a battery cover is installed on the battery compartment (6) through a slot.
5. A small digital barometer according to claim 1, characterized in that: The controller (7) is electrically connected to the display screen (4) and the infrared human body sensor (9).
6. A small digital barometer according to claim 5, characterized in that: A protective strip (3) is adhered to the outer wall of the barometer body (1), and the protective strip (3) protrudes from the surface of the display screen (4).
7. A small digital barometer according to claim 6, characterized in that: A connection port (8) is reserved on one side wall of the pressure gauge body (1), a connection nozzle (2) is installed in the connection port (8), and a connection thread is provided on the outer side wall of the connection nozzle (2).