Gas leakage-preventing oxygen welding machine

Abstract

The utility model relates to the technical field of dioxo welding machines, in particular to a dioxo welding machine capable of preventing gas leakage, which comprises a welding machine main body and a sealing plate, one side of the welding machine main body is provided with a transmission pipe, the transmission pipe is communicated with the inside of the welding machine main body, the outer side of the transmission pipe is provided with a thread groove, and the sealing plate is arranged in the thread groove. The bottom of the carbon dioxide concentration detector is provided with a gas absorption pipe, the gas absorption pipe extends into the detection chamber, the carbon dioxide concentration detector is in sealed connection with the detection chamber, and one side of the display screen is provided with an alarm lamp. According to the utility model, the carbon dioxide concentration detector is used for detecting the concentration of the gas, and when the concentration of the gas in the detection chamber is detected to exceed the standard, the carbon dioxide concentration detector can send out an electric signal to control the alarm lamp to start working, so that an operator is reminded of gas leakage; operators stop working to overhaul the welding machine, and potential safety hazards in the using process of the welding machine are eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of dioxygen welding machines, in particular to a dioxygen welding machine capable of preventing gas leakage. Background Art

[0002] Oxygen welding machine, full name carbon dioxide shielded welding machine, is a kind of electric welding equipment that uses carbon dioxide gas as shielding gas for welding. This welding method mainly relies on the arc between the welding wire and the workpiece to melt the metal, thereby achieving metal connection.

[0003] During use, the carbon dioxide welder needs to be connected to a carbon dioxide gas cylinder to ensure normal use of the welder. However, during use, gas leakage may occur at the connection between the welder and the carbon dioxide gas cylinder, thereby reducing the safety of the welder during use. Existing carbon dioxide welders that prevent gas leakage cannot inform the operator whether there is a carbon dioxide gas leak during use, thereby increasing the safety risks of the welder.

[0004] For this reason, a kind of oxygen welding machine that prevents gas leakage is specially proposed. Utility Model Content

[0005] The purpose of the present utility model is to provide a carbon dioxide welder that prevents gas leakage, so as to solve the problems raised in the above-mentioned background technology. To achieve the above-mentioned purpose, the present utility model provides the following technical solutions: A carbon dioxide welder that prevents gas leakage, comprising a welder body and a sealing plate, a transmission pipe is installed on one side of the welder body, the transmission pipe is connected to the interior of the welder body, a threaded groove is provided on the outside of the transmission pipe, a detection chamber is installed on one side of the welder body, the transmission pipe is located inside the detection chamber, a connecting valve is sealed in the interior of the sealing plate, the connecting valve is sealed in connection with the threaded groove, a carbon dioxide concentration detector is installed on the top of the detection chamber, a gas absorption tube is installed on the bottom of the carbon dioxide concentration detector, the gas absorption tube extends into the interior of the detection chamber, the carbon dioxide concentration detector and the detection chamber are sealed, a display screen is installed on one side of the carbon dioxide concentration detector, and an alarm light is installed on one side of the display screen.

[0006] Preferably, two hinge keys are welded to both sides of the top and bottom of the detection chamber, and the hinge keys are hinged with buckle plates inside.

[0007] Preferably, the cross-sectional view of the gusset plate is L-shaped, and a limiting bolt is connected to the interior of the gusset plate through threaded engagement, and a knob is installed at one end of the limiting bolt.

[0008] Preferably, four threaded holes are respectively opened inside one side of the detection chamber, and the four threaded holes are respectively located at four corners of one side of the detection chamber, and the threaded holes are fitted with limit bolts.

[0009] Preferably, a sealing groove is provided on one side of the detection chamber, and a rubber sealing pad is installed on one side of the rubber sealing pad, and the rubber sealing pad is sealed to the sealing groove.

[0010] Preferably, a positioning hole is provided inside the rubber sealing pad, and is used in conjunction with a limiting bolt.

[0011] Preferably, four fixed casters are installed on the top of the welding machine body by bolts, and the four fixed casters are respectively located at the four corners of the bottom of the welding machine body.

[0012] Preferably, a plurality of heat dissipation openings are provided on one side of the welding machine body, and the heat dissipation openings are communicated with the interior of the welding machine body, and two handles are welded on both sides of the top of the welding machine body.

[0013] Compared with the prior art, the present invention provides a gas leakage-proof oxyacetylene welding machine, which has the following beneficial effects:

[0014] By setting up a detection chamber, a sealing plate, a transmission pipe, a threaded groove, a connecting valve, a gas absorption tube, a carbon dioxide concentration detector and an alarm light, the connecting valve and the threaded groove opened on the outside of the transmission pipe are sealed and connected, and then the sealing plate is sealed and installed on one side of the detection chamber. When gas leakage occurs between the connecting valve and the transmission pipe, the carbon dioxide gas will fill the interior of the entire detection chamber, and the concentration of the carbon dioxide gas will be absorbed by the gas absorption tube, and its concentration will be detected by the carbon dioxide concentration detector. When it is detected that the concentration of the gas inside the detection chamber exceeds the standard, the carbon dioxide concentration detector will send an electrical signal to control the alarm light to start working, thereby reminding the operator of the gas leakage, causing the operator to stop working and repair it, thereby eliminating the safety hazards of the welding machine during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the main body of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model when in use;

[0017] Figure 3 For this utility model Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0019] In the figure: 1. Welding machine body; 2. Heat dissipation vent; 3. Fixed casters; 4. Detection chamber; 5. Connecting valve; 6. Sealing plate; 7. Rubber sealing gasket; 8. Alarm light; 9. Carbon dioxide concentration detector; 10. Handle; 11. Hinge key; 12. Buckle plate; 13. Knob; 14. Limit bolt; 15. Threaded hole; 16. Sealing groove; 17. Display screen; 18. Gas absorption tube; 19. Transmission tube; 20. Threaded groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1: A transmission tube 19 is installed on one side of the welding machine body 1, and the transmission tube 19 is connected to the interior of the welding machine body 1. A threaded groove 20 is provided on the outside of the transmission tube 19. A detection chamber 4 is installed on one side of the welding machine body 1. The transmission tube 19 is located inside the detection chamber 4. The interior of the sealing plate 6 is sealed with a connecting valve 5, and the connecting valve 5 is sealed with the threaded groove 20. A carbon dioxide concentration detector 9 is installed on the top of the detection chamber 4, and a gas absorption tube 18 is installed on the bottom of the carbon dioxide concentration detector 9. The gas absorption tube 18 extends into the interior of the detection chamber 4, and the carbon dioxide concentration detector 9 is sealed with the detection chamber 4. A display screen 17 is installed on one side of the carbon dioxide concentration detector 9, and an alarm light 8 is installed on one side of the display screen 17.

[0022] Specifically, such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, when in use, the connecting valve 5 is sealed and connected to the threaded groove 20 opened on the outside of the transmission pipe 19, and then the sealing plate 6 is sealed and installed on one side of the detection chamber 4. At this time, the carbon dioxide gas will enter the transmission pipe 19 through the connecting valve 5 and then enter the interior of the welding machine body 1. When gas leakage occurs between the connecting valve 5 and the transmission pipe 19, the carbon dioxide gas will fill the entire detection chamber 4, and then the concentration of the carbon dioxide gas will be absorbed by the gas absorption tube 18, and its concentration will be detected by the carbon dioxide concentration detector 9. When it is detected that the concentration of the gas inside the detection chamber 4 exceeds the standard, the carbon dioxide concentration detector 9 will send an electrical signal to control the alarm light 8 to start working, thereby reminding the operator that there is a gas leakage, so that the operator stops working and repairs it, eliminating the safety hazards of the welding machine during use.

[0023] Example 2: Two hinge keys 11 are welded on both sides of the top and bottom of the detection chamber 4, and a pinch plate 12 is hinged inside the hinge key 11. The cross-sectional view of the pinch plate 12 is L-shaped, and the inside of the pinch plate 12 is connected to a limit bolt 14 through threaded engagement. A knob 13 is installed at one end of the limit bolt 14. Four threaded holes 15 are respectively opened inside one side of the detection chamber 4, and the four threaded holes 15 are respectively located at the four corners of one side of the detection chamber 4. The threaded holes 15 are installed in conjunction with the limit bolts 14. A sealing is opened on one side of the detection chamber 4. Groove 16, and a rubber sealing gasket 7 is installed on one side of the rubber sealing gasket 7, the rubber sealing gasket 7 is sealedly connected to the sealing groove 16, a positioning hole is opened inside the rubber sealing gasket 7, and is used in conjunction with the limit bolt 14, four fixed casters 3 are installed on the top of the welding machine body 1 by bolts, and the four fixed casters 3 are respectively located at the four corners of the bottom of the welding machine body 1, a plurality of heat dissipation ports 2 are opened on one side of the welding machine body 1, and the heat dissipation ports 2 are communicated with the interior of the welding machine body 1, and two handles 10 are welded on both sides of the top of the welding machine body 1.

[0024] Specifically, such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, by rotating the buckle plate 12 and then rotating the knob 13 to drive the limiting bolt 14 to rotate, one end of the limiting bolt 14 passes through the positioning hole opened inside the sealing plate 6 and passes into the inside of the threaded hole 15, thereby tightly pressing the sealing plate 6 to one side of the detection chamber 4, so that the rubber sealing gasket 7 installed on one side of the sealing plate 6 is inserted into the inside of the sealing groove 16, thereby ensuring the sealing between the sealing plate 6 and one side of the detection chamber 4, avoiding gas leakage, and the heat dissipation port 2 opened on one side of the welding machine body 1 can dissipate heat to the inside of the welding machine body 1. Since the bottom of the welding machine body 1 is equipped with a fixed caster 3, the entire welding machine body 1 can be easily moved by the fixed caster 3. Since a handle 10 is welded on both sides of the top of the welding machine body 1, the two handles 10 can facilitate the operator to carry the entire welding machine body 1.

[0025] Working principle: When in use, connect one end of the connecting valve 5 to the carbon dioxide gas cylinder, and then seal the connecting valve 5 with the threaded groove 20 opened on the outside of the transmission pipe 19, and then seal the sealing plate 6 on one side of the detection chamber 4, and rotate the buckle plate 12, and then rotate the knob 13 to drive the limit bolt 14 to rotate, so that one end of the limit bolt 14 passes through the positioning hole opened inside the sealing plate 6 and passes into the inside of the threaded hole 15, thereby tightly pressing the sealing plate 6 to one side of the detection chamber 4, so that the rubber sealing gasket 7 installed on one side of the sealing plate 6 is inserted into the inside of the sealing groove 16, thereby ensuring the sealing between the sealing plate 6 and one side of the detection chamber 4 to avoid gas leakage. At this time, the carbon dioxide gas will enter the transmission pipe 19 through the connecting valve 5 and then enter the interior of the welding machine body 1. When gas leakage occurs between the connecting valve 5 and the transmission pipe 19, the carbon dioxide gas will fill the entire detection chamber 4, and then the concentration of the carbon dioxide gas will be absorbed by the gas absorption tube 18, and its concentration will be detected by the carbon dioxide concentration detector 9. When it is detected that the concentration of the gas inside the detection chamber 4 exceeds the standard, the carbon dioxide concentration detector 9 will send an electrical signal to control the alarm light 8 to start working, thereby reminding the operator that there is a gas leakage, so that the operator stops working and repairs it, eliminating the safety hazards of the welding machine during use.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A gas leakage preventing oxygen welding machine, comprising a welding machine body (1) and a sealing plate (6), characterized in that: A transmission tube (19) is installed on one side of the welding machine body (1), and the transmission tube (19) is connected to the inside of the welding machine body (1). A threaded groove (20) is provided on the outside of the transmission tube (19). A detection chamber (4) is installed on one side of the welding machine body (1), and the transmission tube (19) is located inside the detection chamber (4). The inside of the sealing plate (6) is sealed with a connecting valve (5), and the connecting valve (5) is sealed with the threaded groove (20). A carbon dioxide concentration detector (9) is installed on the top of the detection chamber (4), and a gas absorption tube (18) is installed on the bottom of the carbon dioxide concentration detector (9). The gas absorption tube (18) extends into the inside of the detection chamber (4), and the carbon dioxide concentration detector (9) is sealed with the detection chamber (4). A display screen (17) is installed on one side of the carbon dioxide concentration detector (9), and an alarm light (8) is installed on one side of the display screen (17).

2. The gas leakage preventing oxyacetylene welding machine according to claim 1, characterized in that: Two hinge keys (11) are welded to both sides of the top and bottom of the detection chamber (4), and a buckle plate (12) is hinged inside the hinge key (11).

3. The gas leakage preventing oxyacetylene welding machine according to claim 2, characterized in that: The cross-sectional view of the gusset plate (12) is L-shaped, and a limiting bolt (14) is connected to the interior of the gusset plate (12) through threaded engagement, and a knob (13) is installed at one end of the limiting bolt (14).

4. The gas leakage preventing oxyacetylene welding machine according to claim 1, characterized in that: Four threaded holes (15) are respectively provided inside one side of the detection chamber (4), and the four threaded holes (15) are respectively located at four corners of one side of the detection chamber (4), and the threaded holes (15) are fitted with the limiting bolts (14).

5. The gas leakage preventing oxyacetylene welding machine according to claim 1, characterized in that: A sealing groove (16) is provided on one side of the detection chamber (4), and a rubber sealing gasket (7) is installed on one side of the rubber sealing gasket (7), wherein the rubber sealing gasket (7) and the sealing groove (16) are sealed.

6. The gas leakage preventing oxyacetylene welding machine according to claim 5, characterized in that: A positioning hole is provided inside the rubber sealing pad (7) and is used in conjunction with the limiting bolt (14).

7. The gas leakage preventing oxyacetylene welding machine according to claim 1, characterized in that: Four fixed casters (3) are mounted on the top of the welding machine body (1) via bolts, and the four fixed casters (3) are respectively located at four corners of the bottom of the welding machine body (1).

8. The gas leakage preventing oxyacetylene welding machine according to claim 1, characterized in that: A plurality of heat dissipation openings (2) are provided on one side of the welding machine body (1), and the heat dissipation openings (2) are communicated with the interior of the welding machine body (1). Two handles (10) are welded to both sides of the top of the welding machine body (1).

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