Gas alarm calibrating line connection device

Abstract

The utility model discloses a pipeline connection device for gas alarm calibration, including the connecting pipe of fixed above gas alarm and the connecting sleeve of fixed in pipeline end part, the connecting sleeve is used in cooperation with connecting pipe, be provided with the automatic clamping structure of inlaying between the connecting sleeve and gas alarm, the automatic clamping structure of inlaying is used for after the connecting sleeve inserts into the connecting pipe, realizes the location of connecting sleeve, the utility model relates to pipeline connection technical field. The pipeline connection device for gas alarm calibration, through the setting of automatic clamping structure of inlaying, it is convenient for connecting sleeve and connecting pipe quick assembly connection, and then realize the quick connection of pipeline and gas alarm, convenient operation makes the gas alarm calibration work more quickly carry out, through the setting of down -pressing sealing mechanism, it is convenient to guarantee the leakproofness between connecting sleeve and connecting pipe after connecting, realize automatic pressure tight sealing after pipeline connection.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection technology, specifically a pipeline connection device for calibrating gas alarms. Background Technology

[0002] A gas alarm is a gas leak detection and alarm instrument. When a flammable or toxic gas leaks in an industrial environment, and the gas alarm detects that the gas concentration has reached the critical point set by the explosion or poisoning alarm, the alarm will sound an alarm signal to remind workers to take safety measures and activate ventilation, shut-off, and sprinkler systems to prevent explosions, fires, or poisoning accidents, thereby ensuring safe production.

[0003] In the prior art, gas alarms need to be connected to pipelines during calibration. However, this is inconvenient for each test, which affects the calibration process. Therefore, this invention proposes a pipeline connection device for gas alarm calibration to solve the aforementioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a pipeline connection device for calibrating gas alarms, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pipeline connection device for calibrating a gas alarm, comprising a connecting pipe fixed above the gas alarm and a connecting sleeve fixed at the end of the pipeline. The connecting sleeve is used in conjunction with the connecting pipe. An automatic locking structure is provided between the connecting sleeve and the gas alarm. The automatic locking structure is used to limit the position of the connecting sleeve after it is inserted into the connecting pipe. A downward sealing mechanism is provided between the connecting sleeve and the connecting pipe. The downward sealing mechanism is used to achieve a seal between the connecting sleeve and the connecting pipe.

[0006] Preferably, the automatic locking structure includes a limiting ring fixed to the surface of the connecting sleeve, a supporting folding plate fixed above the gas alarm, a triangular limiting block that cooperates with the limiting ring slidably installed above the supporting folding plate, a first magnetic plate fixed to one side of the triangular limiting block, a second magnetic plate that cooperates with the first magnetic plate fixed above the supporting folding plate, and a lever fixed above the first magnetic plate.

[0007] Preferably, the sides of the first magnetic plate and the second magnetic plate that are close to each other are magnetic poles of the same polarity, the triangular limiting block is a right-angled triangular block, and a sliding groove that cooperates with the triangular limiting block is provided on the upper part of the supporting folding plate.

[0008] Preferably, the pressing sealing mechanism includes a fixing ring fixed to the surface of the connecting sleeve, an upper sealing ring fixed below the fixing ring, and a lower sealing ring that cooperates with the upper sealing ring fixed at the upper end of the connecting pipe.

[0009] Preferably, a sealing protrusion is provided below the upper sealing ring, and a sealing groove is provided above the lower sealing ring to cooperate with the sealing protrusion.

[0010] Preferably, the sealing convex ring has a cross-section that gradually decreases from top to bottom, and the sealing groove has a cross-section that gradually decreases from top to bottom. Beneficial effects

[0011] This invention provides a pipeline connection device for calibrating a gas alarm. Compared with the prior art, it has the following advantages:

[0012] This gas alarm calibration pipeline connection device features an automatic locking structure that facilitates quick assembly and connection of the connecting sleeve and connecting pipe, enabling rapid connection between the pipeline and the gas alarm. Its convenient operation allows for faster gas alarm calibration. The pressure sealing mechanism ensures a tight seal between the connecting sleeve and connecting pipe after connection, achieving automatic compression and sealing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 This is a schematic diagram of a partial structure of the present invention;

[0015] Figure 3 This is a schematic diagram of the connecting sleeve structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the upper sealing ring structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the lower sealing ring structure of this utility model.

[0018] In the diagram: 1-Gas alarm, 2-Connecting pipe, 3-Pipeline, 4-Connecting sleeve, 5-Connecting sleeve, 51-Limiting ring, 52-Supporting folding plate, 53-Triangular limiting block, 54-First magnetic plate, 55-Second magnetic plate, 56-Toggle rod, 57-Slide groove, 6-Pressing sealing mechanism, 61-Fixing ring, 62-Upper sealing ring, 63-Lower sealing ring, 64-Sealing convex ring, 65-Sealing groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-5 The present invention provides the following technical solution: a pipeline connection device for calibrating a gas alarm, including a connecting pipe 2 fixed above the gas alarm 1 and a connecting sleeve 4 fixed at the end of the pipeline 3. The connecting sleeve 4 is used in conjunction with the connecting pipe 2. An automatic locking structure 5 is provided between the connecting sleeve 4 and the gas alarm 1. The automatic locking structure 5 is used to limit the connecting sleeve 4 after it is inserted into the connecting pipe 2. A pressing sealing mechanism 6 is provided between the connecting sleeve 4 and the connecting pipe 2. The pressing sealing mechanism 6 is used to seal the connection between the connecting sleeve 4 and the connecting pipe 2.

[0021] In this embodiment, the automatic locking structure 5 includes a limiting ring 51 fixed to the surface of the connecting sleeve 4, a supporting folding plate 52 fixed above the gas alarm 1, a triangular limiting block 53 that cooperates with the limiting ring 51 slidably installed above the supporting folding plate 52, a first magnetic plate 54 fixed on one side of the triangular limiting block 53, a second magnetic plate 55 that cooperates with the first magnetic plate 54 fixed above the supporting folding plate 52, and a lever 56 fixed above the first magnetic plate 54.

[0022] In this design, the first magnetic plate 54 and the second magnetic plate 55 have like magnetic poles on their sides that are close to each other. The repulsive force between these like magnetic poles allows the triangular limiting block 53 to quickly reset and limit the limiting ring 51. The triangular limiting block 53 is a right-angled triangle. A groove 57 is provided above the supporting folding plate 52 to cooperate with the triangular limiting block 53. The inclined surface of the triangular limiting block 53 faces upwards. The lower opening of the connecting sleeve 4 is a frustum shape. This design facilitates the quick insertion and removal of the connecting sleeve 4 into the connecting tube 2. In actual use, the connecting sleeve 4 is aligned with the connecting tube 2 and inserted into it. At this time, the limiting ring... 51 will press the inclined surface of the triangular limiting block 53. Under the action and reaction forces, the entire triangular limiting block 53 will slide to the right until the limiting ring 51 moves below it. At this time, under the repulsive force of the first magnetic plate 54 and the second magnetic plate 55, the triangular limiting block 53 can quickly reset to limit and block the limiting ring 51, thereby completing the automatic positioning of the connecting sleeve 4. When it is necessary to remove the connecting sleeve 4, simply push the entire triangular limiting block 53 to the right through the lever 56, so that the triangular limiting block 53 loses its limit on the limiting ring 51, and then pull the connecting sleeve 4 out of the connecting tube 2.

[0023] In this embodiment, the pressing sealing mechanism 6 includes a fixing ring 61 fixed to the surface of the connecting sleeve 4, an upper sealing ring 62 fixed below the fixing ring 61, and a lower sealing ring 63 that cooperates with the upper sealing ring 62 fixed at the upper end of the connecting pipe 2. A sealing protrusion 64 is provided below the upper sealing ring 62, and a sealing groove 65 that cooperates with the sealing protrusion 64 is provided above the lower sealing ring 63.

[0024] After the connecting sleeve 4 completes automatic positioning, the upper sealing ring 62 and the lower sealing ring 63 come into contact with each other to prevent the connecting sleeve 4 from moving further down. During the process of the connecting sleeve 4 being inserted into the connecting pipe 2, the sealing convex ring 64 can be embedded in the sealing groove 65, which can increase the contact area between the upper sealing ring 62 and the lower sealing ring 63, thereby improving the sealing performance after the connecting sleeve 4 and the connecting pipe 2 are connected. The cross-section of the sealing convex ring 64 gradually decreases from top to bottom, and the cross-section of the sealing groove 65 gradually decreases from top to bottom. This design makes it easy for the sealing convex ring 64 to be stably embedded in the sealing groove 65. The sealing convex ring 64 and the upper sealing ring 62 are integrally molded. The sealing convex ring 64, the upper sealing ring 62, and the lower sealing ring 63 are all made of rubber.

[0025] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipeline connection device for calibrating a gas alarm, comprising a connecting pipe (2) fixed above the gas alarm (1) and a connecting sleeve (4) fixed at the end of the pipeline (3), characterized in that: The connecting sleeve (4) is used in conjunction with the connecting tube (2). An automatic locking structure (5) is provided between the connecting sleeve (4) and the gas alarm (1). The automatic locking structure (5) is used to limit the connecting sleeve (4) after it is inserted into the connecting tube (2). A pressing sealing mechanism (6) is provided between the connecting sleeve (4) and the connecting tube (2). The pressing sealing mechanism (6) is used to seal the connection between the connecting sleeve (4) and the connecting tube (2). The automatic locking structure (5) includes a limiting ring (51) fixed on the surface of the connecting sleeve (4), a supporting plate (52) fixed above the gas alarm (1), a triangular limiting block (53) that cooperates with the limiting ring (51) is slidably installed above the supporting plate (52), a first magnetic plate (54) is fixed on one side of the triangular limiting block (53), a second magnetic plate (55) that cooperates with the first magnetic plate (54) is fixed above the supporting plate (52), and a lever (56) is fixed above the first magnetic plate (54). The first magnetic plate (54) and the second magnetic plate (55) are on the same magnetic poles on the side that are close to each other. The triangular limiting block (53) is a right-angled triangular block. The upper part of the supporting folding plate (52) is provided with a sliding groove (57) that works with the triangular limiting block (53).

2. The pipeline connection device for calibrating a gas alarm according to claim 1, characterized in that: The pressing sealing mechanism (6) includes a fixing ring (61) fixed on the surface of the connecting sleeve (4), an upper sealing ring (62) fixed below the fixing ring (61), and a lower sealing ring (63) that cooperates with the upper sealing ring (62) fixed at the upper end of the connecting pipe (2).

3. The pipeline connection device for calibrating a gas alarm according to claim 2, characterized in that: A sealing protrusion (64) is provided below the upper sealing ring (62), and a sealing groove (65) is provided above the lower sealing ring (63) to cooperate with the sealing protrusion (64).

4. The pipeline connection device for calibrating a gas alarm according to claim 3, characterized in that: The sealing convex ring (64) has a cross-section that gradually decreases from top to bottom, and the sealing groove (65) has a cross-section that gradually decreases from top to bottom.

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