Welding gas flow monitoring device

Abstract

The utility model discloses a welding gas flow monitoring device which comprises a base, a gas storage tank used for storing welding gas is fixedly installed on the top of the base, the output end of the gas storage tank is fixedly connected with a pipe opening, a midway bin is installed on the top of the base, and the top of the midway bin is fixedly connected with a gas pressure gauge. The output end of the midway bin is fixedly connected with a third guide pipe, and the outer wall of the third guide pipe is fixedly provided with a flow valve in a matched mode, the welding gas flow monitoring device relates to the technical field of welding gas flow monitoring devices, the midway bin is arranged, and a gas pressure gauge is arranged at the top of the midway bin and used for monitoring the gas pressure in the midway bin in real time; and the air pressure of the midway bin is kept close to the rated air pressure all the time, and dynamic balance is kept within the error range of the rated air pressure, so that when air is supplied through the midway bin, the error of supplied air flow can be effectively reduced, and the practicability of equipment use and the safety of welding operation are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding gas flow monitoring devices, in particular to a welding gas flow monitoring device. Background Art

[0002] During the welding process, the flow rate of welding gas plays a key role in welding quality. A suitable gas flow rate can effectively protect the weld pool, preventing defects such as porosity and oxidation in the weld, while also helping to stabilize the welding arc. Existing methods of providing shielding gas to welding equipment typically involve pumping air from a gas tank to the input of the welding equipment via an air pump. During this process, as the gas in the gas tank gradually decreases, the gas pressure also gradually decreases. This can lead to unstable air pressure when the equipment is delivering air, making it difficult to maintain a continuous and stable gas supply. Utility Model Content

[0003] The purpose of the present utility model is to provide a welding gas flow monitoring device to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A welding gas flow monitoring device includes a base, a gas storage tank for storing welding gas is fixedly installed on the top of the base, the output end of the gas storage tank is fixedly connected to a pipe mouth, an intermediate warehouse is installed on the top of the base, the top of the intermediate warehouse is fixedly connected to a gas pressure gauge, the output end of the intermediate warehouse is fixedly connected to a third conduit, and a flow valve is fixedly installed on the outer wall of the third conduit.

[0006] In a preferred embodiment of the present invention, a valve is installed on the top of the gas storage tank, and the valve is used to control the on-off and opening degree of the output end pipe of the gas storage tank.

[0007] In a preferred embodiment of the present invention, the input end of the intermediate chamber is connected to the pipe mouth through a first conduit, and the inner wall of the first conduit is connected with a flexible joint.

[0008] In a preferred embodiment of the present invention, a solenoid valve and a first check valve are fixedly installed on the outer wall of the first conduit, and the output end of the first conduit is connected to an air pump.

[0009] In a preferred embodiment of the present invention, the output end of the vacuum pump is fixedly connected to the input end of the intermediate chamber through a second conduit, and a second check valve is fixedly installed on the outer wall of the second conduit.

[0010] In a preferred embodiment of the present invention, the outer walls of the second conduit and the third conduit are both mounted on the top of the base via a support seat, and the outer wall of the third conduit is fixedly mounted with a third check valve.

[0011] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention.

[0012] 1. By setting up an intermediate chamber and installing a pressure gauge on the top of the intermediate chamber to monitor the air pressure inside the intermediate chamber in real time, the intermediate chamber is always kept close to the rated air pressure and maintains dynamic balance within the error range of the rated air pressure. This facilitates the supply of air through the intermediate chamber, effectively reducing the error of the air supply flow, and improving the practicality of the equipment and the safety of the welding operation;

[0013] 2. By setting up an air pump, the gas in the gas storage tank is actively pumped into the interior of the intermediate chamber through the air pump, so that during the welding gas supply process, the interior of the intermediate chamber can be quickly and accurately supplied with gas, thereby achieving a state of air pressure balance inside the intermediate chamber, thereby improving the practicality and stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0015] Figure 1 This is a schematic diagram of the main structure of a welding gas flow monitoring device;

[0016] Figure 2 This is a schematic diagram of a top view of the structure of a welding gas flow monitoring device;

[0017] Figure 3 This is a schematic diagram of the structure of a gas storage tank in a welding gas flow monitoring device;

[0018] Figure 4 This is a schematic diagram of the intermediate chamber structure in a welding gas flow monitoring device.

[0019] In the figure: base 100, gas storage tank 200, valve 210, nozzle 220, air pump 300, first conduit 310, first check valve 311, flexible joint 320, solenoid valve 330, second conduit 340, second check valve 341, intermediate chamber 400, air pressure gauge 410, third conduit 420, support seat 430, flow valve 440, third check valve 450. DETAILED DESCRIPTION

[0020] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0021] Example 1: Figures 1-4 , including a base 100, a gas storage tank 200 for storing welding gas is fixedly installed on the top of the base 100, the output end of the gas storage tank 200 is fixedly connected to the pipe mouth 220, an intermediate warehouse 400 is installed on the top of the base 100, the top of the intermediate warehouse 400 is fixedly connected to the gas pressure gauge 410, the output end of the intermediate warehouse 400 is fixedly connected to the third conduit 420, and the outer wall of the third conduit 420 is fixedly installed with a flow valve 440.

[0022] The specific usage scenario of this embodiment is: by setting up an intermediate warehouse 400, and setting up a pressure gauge 410 on the top of the intermediate warehouse 400 for real-time monitoring of the air pressure inside the intermediate warehouse 400, the intermediate warehouse 400 is always kept close to the rated air pressure and maintains dynamic balance within the error range of the rated air pressure, thereby facilitating the gas supply through the intermediate warehouse 400, and can effectively reduce the error of the gas supply flow, thereby improving the practicality of the equipment and the safety of the welding operation, and setting a flow valve 440 for detecting the flow of the protective gas.

[0023] Example 2: Figures 1-4 , including a base 100, a gas storage tank 200 for storing welding gas is fixedly installed on the top of the base 100, the output end of the gas storage tank 200 is fixedly connected to the pipe mouth 220, an intermediate warehouse 400 is installed on the top of the base 100, the top of the intermediate warehouse 400 is fixedly connected to the gas pressure gauge 410, the output end of the intermediate warehouse 400 is fixedly connected to the third conduit 420, the outer wall of the third conduit 420 is fixedly installed with a flow valve 440, a valve 210 is installed on the top of the gas storage tank 200, the valve 210 is used to control the on-off and opening of the pipe mouth 220 at the output end of the gas storage tank 200, the input end of the intermediate warehouse 400 is connected through The first conduit 310 is connected to the pipe mouth 220, and the inner wall of the first conduit 310 is connected to the flexible joint 320. The outer wall of the first conduit 310 is fixedly installed with a solenoid valve 330 and a first check valve 311. The output end of the first conduit 310 is connected to the air pump 300, and the output end of the air pump 300 is fixedly connected to the input end of the intermediate warehouse 400 through the second conduit 340. The outer wall of the second conduit 340 is fixedly installed with a second check valve 341. The outer walls of the second conduit 340 and the third conduit 420 are both installed on the top of the base 100 through the support seat 430, and the outer wall of the third conduit 420 is fixedly installed with a third check valve 450.

[0024] The specific usage scenario of this embodiment is as follows: by setting the valve 210 to control the release of gas from the pipe mouth 220, by setting the intermediate chamber 400, it is convenient to pump the gas in the gas tank 200 into the intermediate chamber 400 in advance, so that the pressure inside the intermediate chamber 400 is maintained constant, so that when the welding equipment is supplied with gas through the intermediate chamber 400, it is possible to avoid the gas pressure change caused by the gas in the gas tank 200 becoming less, which may affect the welding protection, thereby improving the safety of the welding equipment. By setting the solenoid valve 330 to control the on-off function of the first conduit 310, it is convenient to control the opening of the solenoid valve 330 when the equipment is working, so as to control the amount of shielding gas required for the interior of the gas tank 200 by controlling the opening of the solenoid valve 330. By setting the first check valve 311, the first conduit 310 can be unidirectional, the second check valve 341 is provided to control the unidirectional flow of the second conduit 340, and the third check valve 450 is provided to control the unidirectional flow of the third conduit 420.

[0025] The working principle of the present invention is as follows: when in use, a person skilled in the art fills the shielding gas for welding into the gas tank 200, installs the vacuum pump 300 on the top outer wall of the base 100, and then connects the input end of the vacuum pump 300 to the nozzle 220 of the gas tank 200. A flexible joint 320 is provided to facilitate the rotational connection between the first conduit 310 and the nozzle 220 to avoid knotting. Then, the output end of the vacuum pump 300 is fixedly connected to the input end of the intermediate chamber 400 through the second conduit 340. When in use, the vacuum pump 300 is turned on to open the valve. The door 210 pumps the gas in the gas storage tank 200 into the intermediate warehouse 400, and monitors the air pressure inside the intermediate warehouse 400 through the pressure gauge 410. When the rated air pressure is reached, the vacuum pump 300 is turned off, and the third conduit 420 is connected to the input end of the welding equipment for gas supply. The flow rate of the gas transported by the third conduit 420 is monitored through the flow valve 440, and the pressure in the intermediate warehouse 400 is monitored in real time through the pressure gauge 410. At the same time, the vacuum pump 300 is controlled to be turned on to replenish the gas in the intermediate warehouse 400 in time, so that the intermediate warehouse 400 can maintain a stable air pressure when outputting gas.

[0026] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A welding gas flow monitoring device, comprising a base (100), a gas storage tank (200) for storing welding gas fixedly mounted on the top of the base (100), characterized in that: The output end of the gas storage tank (200) is fixedly connected to a pipe mouth (220); an intermediate chamber (400) is installed on the top of the base (100); a gas pressure gauge (410) is fixedly connected to the top of the intermediate chamber (400); the output end of the intermediate chamber (400) is fixedly connected to a third conduit (420); and a flow valve (440) is fixedly installed on the outer wall of the third conduit (420).

2. A welding gas flow monitoring device according to claim 1, characterized in that: A valve (210) is installed on the top of the gas storage tank (200), and the valve (210) is used to control the on / off and opening degree of the output end pipe port (220) of the gas storage tank (200).

3. A welding gas flow monitoring device according to claim 2, characterized in that: The input end of the intermediate chamber (400) is connected to the pipe mouth (220) via a first conduit (310), and a flexible joint (320) is connected to the inner wall of the first conduit (310).

4. A welding gas flow monitoring device according to claim 3, characterized in that: A solenoid valve (330) and a first check valve (311) are fixedly installed on the outer wall of the first conduit (310), and the output end of the first conduit (310) is connected to an air extraction pump (300).

5. A welding gas flow monitoring device according to claim 4, characterized in that: The output end of the air extraction pump (300) is fixedly connected to the input end of the intermediate chamber (400) via a second conduit (340), and a second check valve (341) is fixedly installed on the outer wall of the second conduit (340).

6. A welding gas flow monitoring device according to claim 5, characterized in that: The outer walls of the second conduit (340) and the third conduit (420) are both mounted on the top of the base (100) via a support seat (430), and a third check valve (450) is fixedly mounted on the outer wall of the third conduit (420).

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