A portable self-test bottle for a gas sensor

Abstract

This utility model provides a portable self-testing bottle for a gas sensor, relating to the field of gas detection technology. It includes: a bottle body with a bottle opening at the top; a connecting tube detachably connected to the bottom of the bottle opening, with an opening and closing mechanism inside the connecting tube to open and close the gas path; and a protective cap detachably mounted on the top of the connecting tube to protect it. According to this utility model, the detachable connection between the bottom of the connecting tube and the bottle opening, along with the opening and closing mechanism inside the connecting tube to open and close the gas path, allows for testing after gas is added to the bottle. Controlling the opening and closing facilitates adding gas to the bottle, enabling quick and easy operation. The protective cap detachably mounted on the top of the connecting tube further enhances the sealing of the bottle during transport or testing, facilitating testing.

Description

Technical Field

[0001] This utility model relates to the field of gas detection technology, specifically to a portable self-testing bottle for a gas sensor. Background Technology

[0002] Gas sensors are widely used in industrial safety, environmental monitoring, and medical testing. To ensure their detection accuracy and reliability, they need to be calibrated or self-tested regularly using standard concentration gases. Traditional calibration methods typically rely on large standard gas cylinders or fixed gas mixing devices. These devices are bulky and complex to operate, making it difficult to meet the needs of rapid on-site testing, outdoor operations, or immediate self-testing of distributed sensor nodes.

[0003] Existing self-test bottles typically use threaded or snap-fit ​​inlet interfaces. When replenishing or replacing standard gas, operators must use specialized tools to connect the gas lines, and manually maintain a seal during filling, making the process cumbersome and time-consuming. This difficulty is further exacerbated in high-altitude, high-temperature, low-temperature, or space-constrained environments, increasing the risk of gas leakage or concentration deviations, affecting calibration accuracy, and potentially leading to insufficient filling and reduced efficiency. Furthermore, existing self-test bottles, in pursuit of high storage capacity, are usually cylindrical metal bottles, resulting in large size and weight, hindering true portability. Therefore, this invention proposes a portable self-test bottle for a gas sensor to address these issues. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the shortcomings of the portable self-test bottle of gas sensor in the prior art, which is not convenient to use, and thus provide a portable self-test bottle of gas sensor.

[0005] To address the aforementioned problems, this utility model provides a portable self-testing bottle for a gas sensor, comprising: The bottle body has a bottle opening at its top; A connecting tube, the bottom of which is detachably connected to the bottle opening, and an opening and closing mechanism is provided inside the connecting tube to realize the opening and closing of the air passage of the connecting tube; A protective cover is detachably mounted on the top of the connecting cylinder to protect the connecting cylinder.

[0006] Preferably, the opening and closing mechanism includes an inner cylinder and a sphere. The inner cylinder is disposed in the middle of the connecting cylinder, and the sphere is hollow and movably disposed in the inner cylinder. The top and bottom of the sphere are respectively provided with a first connecting port and a second connecting port. When both the first connecting port and the second connecting port abut against the inner cylinder, the air passage is closed. When the first connecting port or the second connecting port connects to the bottle body, the air passage is opened.

[0007] Preferably, a pair of rotating rods are provided on the sphere in a direction perpendicular to the first and second connecting ports. One end of the pair of rotating rods is connected to the opposite outer side of the sphere, and the other end of the rotating rods is rotatably connected to the inner cylinder and the connecting cylinder, respectively. One end of one of the rotating rods is provided with a handle that extends through the outside of the connecting cylinder.

[0008] Preferably, the bottom inner side of the connecting cylinder is provided with a first thread, and the outer side of the bottle mouth is provided with a second thread, and the connecting cylinder and the bottle mouth are connected by the first thread and the second thread.

[0009] Preferably, the connecting cylinder has an assembly groove on its top inner side, the inner wall of the assembly groove has a third thread, the protective cover has a fourth thread on its bottom outer side, and the protective cover and the connecting cylinder are connected by the third thread and the fourth thread.

[0010] Preferably, the bottle body is provided with at least one recessed groove.

[0011] Preferably, a hanging ring is provided at the center of the top of the protective cover.

[0012] The portable self-test bottle for a gas sensor provided by this utility model has the following beneficial effects: 1. This utility model features a detachable connection between the bottom of a connecting cylinder and the bottle opening. The connecting cylinder is equipped with an opening and closing mechanism to allow for the opening and closing of the gas passage, enabling testing after gas is added to the bottle. Controlling the opening and closing facilitates the addition of gas, allowing for quick and easy inflation. A protective cap is detachably mounted on the top of the connecting cylinder to protect it. The protective cap further enhances the sealing of the bottle during transport or testing, facilitating testing. 2. This utility model also allows the ball to rotate relative to the inner cylinder, thereby adjusting whether the first connecting port and the second connecting port abut against the inner cylinder or extend into the bottle mouth; one end of one of the rotating rods is provided with a handle through the outside of the connecting cylinder, which facilitates the operation of the rotating rod. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the assembly of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the installation of the second communication port structure of this utility model; Figure 4 This is a schematic diagram of the handle structure installation of this utility model; Figure 5 This is a schematic diagram of the detection scenario of this utility model.

[0014] The reference numerals in the attached figures are as follows: 1. Bottle body; 2. Bottle mouth; 3. Connecting tube; 4. Protective cap; 5. Inner tube; 6. Sphere; 7. First connecting port; 8. Second connecting port; 9. Rotating rod; 10. Handle; 11. Assembly groove; 12. Recessed groove. Detailed Implementation

[0015] like Figure 1-5 As shown, this utility model provides a portable self-test bottle for a gas sensor, which includes: Bottle 1, which temporarily stores gas, is made of transparent material, and has a bottle opening 2 at its top; Connecting cylinder 3, whose bottom is detachably connected to the bottle opening 2, has an opening and closing mechanism to allow for the opening and closing of the gas passage, enabling testing after gas needs to be added to the bottle. Controlling the opening and closing facilitates adding gas and allows for quick operation with instant opening and closing; Protective cap 4, detachably mounted on top of the connecting cylinder 3, further enhances the sealing of the bottle 1 during transport or testing, facilitating testing. Taking methane as an example, during calibration, the bottle is placed at the detection port of a laser methane alarm. The emitter of the laser methane alarm emits specific light, which, upon passing through the methane gas inside the bottle 1, forms a specific spectrum. The laser methane alarm receives this spectrum and issues an alarm, thus completing the laser methane alarm test.

[0016] In some implementations, such as Figure 1-5 As shown, the opening and closing mechanism includes an inner cylinder 5 and a sphere 6. The inner cylinder 5 is located in the middle of the connecting cylinder 3 and can be connected by snap-fit, threaded connection, or adhesive. The sphere 6 is a hollow structure and is movably disposed in the inner cylinder 5. The sphere 6 can rotate between the inner cylinders 5 by rotating it. The top and bottom of the sphere 6 are respectively provided with a first connecting port 7 and a second connecting port 8. When both the first connecting port 7 and the second connecting port 8 abut against the inner cylinder 5, the air passage is closed. When the first connecting port 7 or the second connecting port 8 connects to the bottle body 1, the air passage is opened. By rotating the sphere 6, the first connecting port 7 and the second connecting port 8 are oriented in different directions. The first connecting port 7 is on the central axis of the sphere 6. The aperture of the first connecting port 7 and the second connecting port 8 is much smaller than the aperture of the bottle mouth 2 to prevent excessive gas overflow from the bottle mouth 2.

[0017] In some implementations, such as Figure 1-5As shown, a pair of rotating rods 9 are arranged on the sphere 6 in a direction perpendicular to the first connecting port 7 and the second connecting port 8. The pair of rotating rods 9 are also arranged on the central axis of the sphere 6, but the line connecting the pair of rotating rods 9 is perpendicular to the line connecting the first connecting port 7 and the second connecting port 8. One end of the pair of rotating rods 9 is connected to the opposite outer side of the sphere 6, which can be snapped or glued. The other end of the rotating rods 9 is rotatably connected to the inner cylinder 5 and the connecting cylinder 3, respectively, so that the sphere 6 can rotate relative to the inner cylinder 5, thereby adjusting whether the first connecting port 7 and the second connecting port 8 abut against the inner cylinder 5 or extend into the bottle mouth 2. One end of one of the rotating rods 9 passes through the outer side of the connecting cylinder 3 and is provided with a handle 10. The handle 10 facilitates the operation of rotating rod 9. The handle 10 and the rotating rod 9 can also be detachably connected. The end of the rotating rod 9 is provided with a groove, and the connection of the handle 10 is provided with a protrusion. The shape of the protrusion and the groove are adapted, such as a triangle or trapezoid, so that it can be inserted when adjustment is needed and removed at other times to avoid misoperation during use.

[0018] In some implementations, such as Figure 1-5 As shown, the bottom inner side of the connecting cylinder 3 is provided with a first thread, and the outer side of the bottle mouth 2 is provided with a second thread. The connecting cylinder 3 and the bottle mouth 2 are connected by the first thread and the second thread, and a sealing gasket is provided at their close contact points to increase airtightness.

[0019] In some implementations, such as Figure 1-5 As shown, the top inner side of the connecting cylinder 3 is provided with an assembly groove 11, the inner side wall of the assembly groove 11 is provided with a third thread, the bottom outer side of the protective cover 4 is provided with a fourth thread, the protective cover 4 and the connecting cylinder 3 are connected by the third thread and the fourth thread, and a sealing gasket is provided at their close contact points to increase air tightness. When inflation is required, the protective cover 4 is removed, and at other times it is closed to increase the sealing effect.

[0020] In some implementations, such as Figure 1-5 As shown, the bottle body 1 is provided with at least one recessed groove 12. The recessed groove 12 is designed to facilitate the operator's grip on the bottle body and prevent slipping.

[0021] In some implementations, such as Figure 1-5 As shown, a hanging ring is provided at the top center of the protective cover 4. The hanging ring allows the operator to easily connect it to other places by hooking it. At the same time, the protective cover 4 and the connecting cylinder 3 can be disassembled by grasping the hanging ring.

[0022] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A portable self-test bottle for a gas sensor, characterized in that, include: The bottle body has a bottle opening at its top; A connecting tube, the bottom of which is detachably connected to the bottle opening, and an opening and closing mechanism is provided inside the connecting tube to realize the opening and closing of the air passage of the connecting tube; A protective cover is detachably mounted on the top of the connecting cylinder to protect the connecting cylinder.

2. The portable self-test bottle for the gas sensor according to claim 1, characterized in that: The opening and closing mechanism includes an inner cylinder and a sphere. The inner cylinder is located in the middle of the connecting cylinder. The sphere is hollow and movably disposed in the inner cylinder. The top and bottom of the sphere are respectively provided with a first connecting port and a second connecting port. When both the first connecting port and the second connecting port abut against the inner cylinder, the air passage is closed. When the first connecting port or the second connecting port connects to the bottle body, the air passage is opened.

3. The portable self-test bottle for the gas sensor according to claim 2, characterized in that: A pair of rotating rods are provided on the sphere in a direction perpendicular to the first and second connecting ports. One end of each rotating rod is connected to the opposite outer side of the sphere, and the other end of each rotating rod is rotatably connected to the inner cylinder and the connecting cylinder, respectively. One end of one of the rotating rods is provided with a handle that extends through the outside of the connecting cylinder.

4. The portable self-test bottle for the gas sensor according to claim 1, characterized in that: The bottom inner side of the connecting cylinder is provided with a first thread, and the outer side of the bottle mouth is provided with a second thread. The connecting cylinder and the bottle mouth are connected by the first thread and the second thread.

5. The portable self-test bottle for the gas sensor according to claim 1, characterized in that: The connecting cylinder has an assembly groove on its top inner side, and a third thread on the inner wall of the assembly groove. The protective cover has a fourth thread on its bottom outer side, and the protective cover and the connecting cylinder are connected by the third thread and the fourth thread.

6. The portable self-test bottle of the gas sensor according to claim 1, characterized in that: The bottle body is provided with at least one recessed groove.

7. The portable self-test bottle for the gas sensor according to claim 1, characterized in that: A hanging ring is provided at the center of the top of the protective cover.

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