Portable combustible gas alarm quick calibration adapter

Abstract

The utility model provides portable combustible gas alarm quick calibration adapter relates to adapter technical field, include: adapter main part, the bottom fixed installation of adapter main part has gas cylinder main joint, the gas cylinder main joint is the gas inlet end, and the gas cylinder main joint is connected with the gas outlet thread of outside gas steel bottle pressure reducing valve. This adapter is through setting transverse distribution pipe, and is configured a plurality of alarm vice joint on transverse distribution pipe, only needs through gas cylinder main joint and single standard gas steel bottle butt joint, can connect multiple combustible gas alarms simultaneously with the aid of a plurality of alarm vice joint, realizes many equipment synchronous calibration, solved many and uses one to one single connection mode to realize the butt joint of alarm and gas steel bottle, this makes batch calibration multiple alarms, needs to dismantle frequently, changes adapter and the connection of different alarm, not only the operation is complicated, still greatly increased the dismantling change frequency, influences the problem of calibration efficiency.

Description

Technical Field

[0001] This utility model relates to the field of adapter technology, and in particular to a rapid calibration adapter for portable combustible gas alarms. Background Technology

[0002] The portable combustible gas alarm quick calibration adapter is a dedicated auxiliary tool for portable combustible gas alarms, or simply alarms. Its core function is to simplify the alarm calibration process and improve calibration efficiency and accuracy. It is widely used in chemical, gas, mining, metallurgical and other scenarios where combustible gas alarms need to be calibrated regularly.

[0003] Existing combustible gas alarm quick calibration adapters typically use a one-to-one single connection mode to connect the alarm to the gas cylinder. This requires frequent disassembly and replacement of the adapter with different alarms when calibrating multiple alarms in batches. This is not only cumbersome but also significantly increases the frequency of disassembly and replacement, affecting calibration efficiency. Utility Model Content

[0004] This utility model relates to a portable combustible gas alarm rapid calibration adapter. It features a horizontal distribution pipe with multiple alarm sub-connectors. After connecting to a single standard gas cylinder via the main gas cylinder connector, the adapter can connect to multiple combustible gas alarms via these sub-connectors. This allows for simultaneous calibration of multiple combustible gas alarms, reducing the frequency of alarm replacement by increasing the number of alarms calibrated at once. Furthermore, the adapter not only provides multiple sub-connectors for calibration but also ensures that other sub-connectors are sealed when connecting to a single combustible gas alarm. Therefore, this adapter can calibrate both multiple and single combustible gas alarms.

[0005] In a first aspect, this utility model provides a portable combustible gas alarm quick calibration adapter, specifically comprising: an adapter body, wherein a gas cylinder main connector is fixedly installed at the bottom end of the adapter body; the gas cylinder main connector is an inlet end and is threadedly connected to the outlet of an external gas cylinder pressure reducing valve; a transverse distribution pipe is fixedly installed at the top of the adapter body; an alarm auxiliary connector is provided at the top of the transverse distribution pipe; the alarm auxiliary connector is an outlet end and is threadedly connected to the inlet connector of an external combustible gas alarm; a trigger-type gas guide tube is fixedly installed at the center of the bottom end of the alarm auxiliary connector; the bottom end of the trigger-type gas guide tube is inside the transverse distribution pipe; a gas delivery groove is formed on the outer circumferential wall of the trigger-type gas guide tube; a sealing slide is slidably installed at the bottom end of the alarm auxiliary connector; and a trigger-type sealing sleeve is fixedly installed at the top of the sealing slide.

[0006] Furthermore, the top of the trigger-type air duct is closed, while the bottom is open.

[0007] Furthermore, the sealing slide has a disc-shaped structure.

[0008] Furthermore, both the trigger-type sealing sleeve and the sealing slide are slidably mounted on the outer circumferential wall of the trigger-type air guide tube.

[0009] Furthermore, the trigger-type sealing sleeve is also slidably installed on the threaded connection part of the alarm sub-connector.

[0010] Furthermore, a restoring spring is embedded in the bottom of the sealing slide; the other end of the restoring spring is embedded in the bottom of the alarm sub-connector.

[0011] Furthermore, when the trigger-type sealing sleeve is located at the threaded connection of the alarm sub-connector, the trigger-type sealing sleeve will block the air supply channel.

[0012] This utility model provides a quick calibration adapter for a portable combustible gas alarm, which has the following advantages: (i) This adapter, by setting up a horizontal distribution pipe and configuring multiple alarm sub-connectors on the horizontal distribution pipe, only needs to be connected to a single standard gas cylinder through the main gas cylinder connector. Multiple combustible gas alarms can be connected simultaneously through multiple alarm sub-connectors to achieve synchronous calibration of multiple devices. By increasing the number of devices calibrated at one time, the frequency of alarm disassembly and replacement is greatly reduced, and the calibration efficiency is improved.

[0013] (ii) In addition to being equipped with multiple alarm sub-connectors to meet the simultaneous calibration requirements of multiple alarms, this adapter is also designed with an independent sealing structure for the alarm sub-connectors. When only a single combustible gas alarm is connected, the remaining unused alarm sub-connectors can automatically remain sealed without the need for additional sealing operations. Therefore, this adapter has dual adaptability for simultaneous calibration of multiple devices and independent calibration of a single device, making it flexible and convenient to use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0015] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0016] In the attached diagram: Figure 1 A schematic diagram of the overall structure of this utility model is shown; Figure 2 A schematic diagram of a half-section of the main body of the adapter of this utility model is shown; Figure 3 This utility model illustrates Figure 2 Enlarged structural diagram of section A; Figure 4 This diagram shows the structure of the trigger-type sealing sleeve in the disassembled state according to the present invention; Figure 5 A schematic diagram of the trigger-type sealing sleeve and trigger-type air guide tube of this utility model is shown. List of reference numerals 1. Adapter body; 2. Gas cylinder main connector; 3. Horizontal distribution pipe; 4. Alarm auxiliary connector; 5. Trigger-type gas guide pipe; 6. Gas delivery trough; 7. Sealing slide; 8. Trigger-type sealing sleeve; 9. Returning spring. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Please refer to Figures 1 to 5 Example 1: This utility model proposes a portable combustible gas alarm quick calibration adapter, comprising: an adapter body 1, with a gas cylinder main connector 2 fixedly installed at the bottom of the adapter body 1; the gas cylinder main connector 2 is the gas inlet end, and is threadedly connected to the outlet of an external gas cylinder pressure reducing valve; a transverse distribution pipe 3 is fixedly installed at the top of the adapter body 1; an alarm auxiliary connector 4 is provided at the top of the transverse distribution pipe 3; the alarm auxiliary connector 4 is the gas outlet end, and is threadedly connected to the gas inlet connector of an external combustible gas alarm; a trigger-type gas guide pipe 5 is fixedly installed at the center of the bottom of the alarm auxiliary connector 4; the bottom of the trigger-type gas guide pipe 5 is inside the transverse distribution pipe 3; a gas delivery groove 6 is provided on the outer circumferential wall of the trigger-type gas guide pipe 5; a sealing slide plate 7 is slidably installed at the bottom of the alarm auxiliary connector 4; a trigger-type sealing... The main connector 2 of the gas cylinder is threaded to the outlet of the pressure reducing valve of the standard gas cylinder. Then, the inlet of the combustible gas alarm is threaded into the inside of the auxiliary connector 4 of the alarm. During the threaded connection, the inlet of the combustible gas alarm will push the trigger-type sealing sleeve 8, causing the trigger-type sealing sleeve 8 to move downward under pressure and the top of the trigger-type gas guide tube 5 to enter the inlet of the combustible gas alarm. This removes the obstruction of the gas delivery channel 6 by the trigger-type sealing sleeve 8, opening the gas delivery channel 6. Then, the standard gas cylinder is opened, and the standard gas of the set concentration is introduced according to the calibration procedure. After the combustible gas alarm receives the gas, the staff can complete the zero-point calibration, full-scale calibration, and other operations according to the procedure. After the calibration is completed, the standard gas cylinder is closed, and the auxiliary connector 4 of the alarm is separated from the calibrated combustible gas alarm. Then, the calibration of the next combustible gas alarm begins.

[0019] In Example 2, based on Example 1, the top of the trigger-type gas guide tube 5 is closed, and the bottom is open; the sealing slide 7 has a disc-shaped structure; the trigger-type sealing sleeve 8 and the sealing slide 7 are both slidably installed on the outer circumference of the trigger-type gas guide tube 5; by setting a transverse distribution tube 3 and setting multiple alarm sub-connectors 4 on the transverse distribution tube 3, after this adapter is connected to a single standard gas cylinder through the main gas cylinder connector 2, it can be connected to multiple combustible gas alarms through multiple alarm sub-connectors 4, so that this calibration adapter can simultaneously calibrate multiple combustible gas alarms, thereby reducing the frequency of alarm replacement by increasing the number of alarms calibrated each time.

[0020] In Example 3, based on Example 2, the trigger-type sealing sleeve 8 is also slidably installed on the threaded connection part of the alarm sub-connector 4; one end of the return spring 9 is embedded in the bottom of the sealing slide plate 7; the other end of the return spring 9 is embedded in the bottom of the alarm sub-connector 4; when the trigger-type sealing sleeve 8 is in the threaded connection part of the alarm sub-connector 4, the trigger-type sealing sleeve 8 will block the gas delivery channel 6; this adapter not only has multiple alarm sub-connectors 4, enabling it to be connected to multiple combustible gas alarms for calibration, but also ensures that when connecting a single combustible gas alarm, the other alarm sub-connectors 4 are in a sealed state. Therefore, this adapter can not only connect and calibrate multiple combustible gas alarms, but also connect and calibrate a single combustible gas alarm.

[0021] Working Principle: In use, first tighten the threads of the main gas cylinder connector 2 to the outlet of the pressure reducing valve on the standard gas cylinder. Then, according to calibration requirements, screw the inlet of the combustible gas alarm to be calibrated into the auxiliary connector 4 of the alarm. During the threaded connection, the alarm's inlet will push the trigger-type sealing sleeve 8 inside the auxiliary connector 4, causing it to move downwards under pressure. Simultaneously, the tip of the trigger-type gas guide tube 5 will precisely enter the alarm's inlet, thereby releasing the blockage of the gas delivery channel 6 by the trigger-type sealing sleeve 8, allowing the gas delivery channel 6 to be open. Then, open the standard gas cylinder and introduce the standard gas of the set concentration according to the calibration procedure. After the alarm receives the gas, the operator can complete the zero-point calibration, full-scale calibration, and other operations according to the procedure. After calibrating one or more alarms (connected as needed), close the standard gas cylinder and loosen the connection between the auxiliary connector 4 and the calibrated alarm. Unused auxiliary connector 4 remains sealed and requires no additional processing before being directly connected to the next alarm for calibration.

[0022] The following points should be noted in this article: 1. The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment; other structures can refer to general designs.

[0023] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0024] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A portable combustible gas alarm quick calibration adapter, comprising: characterized in that, The adapter body (1) has a gas cylinder main connector (2) fixedly installed at its bottom end; the gas cylinder main connector (2) is the inlet end and is threadedly connected to the outlet of the external gas cylinder pressure reducing valve; a transverse distribution pipe (3) is fixedly installed at the top of the adapter body (1); an alarm auxiliary connector (4) is provided at the top of the transverse distribution pipe (3); the alarm auxiliary connector (4) is the outlet end and is threadedly connected to the inlet connector of the external combustible gas alarm; a trigger-type gas guide pipe (5) is fixedly installed at the center of the bottom of the alarm auxiliary connector (4); the bottom of the trigger-type gas guide pipe (5) is inside the transverse distribution pipe (3); a gas delivery groove (6) is opened on the outer circumference of the trigger-type gas guide pipe (5); a sealing slide plate (7) is slidably installed at the bottom of the alarm auxiliary connector (4); a trigger-type sealing sleeve (8) is fixedly installed at the top of the sealing slide plate (7).

2. The portable combustible gas alarm quick calibration adapter according to claim 1, characterized in that, The top end of the trigger-type air duct (5) is closed, and the bottom end is open.

3. The portable combustible gas alarm quick calibration adapter according to claim 1, characterized in that, The sealing slide (7) has a disc-shaped structure.

4. The portable combustible gas alarm quick calibration adapter according to claim 1, characterized in that, Both the trigger-type sealing sleeve (8) and the sealing slide (7) are slidably mounted on the outer circumferential wall of the trigger-type air guide pipe (5).

5. The portable combustible gas alarm quick calibration adapter according to claim 1, characterized in that, The trigger-type sealing sleeve (8) is also slidably installed on the threaded connection part of the alarm sub-connector (4).

6. The portable combustible gas alarm quick calibration adapter according to claim 1, characterized in that, The bottom of the sealing slide (7) is embedded with one end of a restoring spring (9); the other end of the restoring spring (9) is embedded in the bottom of the alarm sub-connector (4).

7. The portable combustible gas alarm quick calibration adapter according to claim 1, characterized in that, When the trigger-type sealing sleeve (8) is located at the threaded connection of the alarm sub-connector (4), the trigger-type sealing sleeve (8) will block the air supply channel (6).

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