Gas cutting head

Abstract

The utility model discloses a fuel gas cutting head which comprises an inner pipe and an outer pipe, the outer pipe is connected to the outer side of the inner pipe in a sleeved mode, the inner pipe is communicated with a high-pressure oxygen pipe, the upper end of the outer pipe extends into a fuel gas pipe and is provided with an adjusting part, the outer pipe is communicated with the adjusting part, and the adjusting part can be controlled to be communicated with the fuel gas pipe or the high-pressure oxygen pipe by rotating the outer pipe. The fixing cover is arranged, the outer pipe can be controlled to be communicated with the gas pipe or the high-pressure oxygen pipe, and therefore the outer pipe can be dredged through high-pressure oxygen after the outer pipe is communicated with the gas pipe or the high-pressure oxygen pipe, and the cleaning effect is improved.

Description

Technical Field

[0001] The utility model relates to a gas cutting head and belongs to the field of gas cutting. Background Art

[0002] At present, a gas cutting head is required for gas cutting. However, after long-term use, a certain amount of carbon deposits will be generated on the inner wall near the gas pipe outlet, thereby affecting the outflow of gas and making it impossible to cut. At present, when cleaning the carbon deposits, workers are often required to use a needle-shaped object to conduct a connection to the position of the gas pipe opening. The needle-shaped object will push the carbon deposits into the inside of the gas pipe, and then the subsequent gas will cause the carbon deposits to be discharged. However, during the subsequent discharge, the carbon deposits may still be stuck in the inside of the gas pipe, resulting in an unsatisfactory cleaning effect. In order to solve the above problem, the utility model provides a gas cutting head. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides a gas cutting head provided with a fixed cover, which can control the outer tube to communicate with the gas pipe or the high-pressure oxygen pipe, so that the outer tube can be cleared with high-pressure oxygen after conduction, thereby improving the cleaning effect.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a gas cutting head, comprising an inner tube and an outer tube, the outer tube is sleeved on the outside of the inner tube, the outer tube is rotatably connected to the inner tube, the inner tube is communicated with a high-pressure oxygen tube, the high-pressure oxygen from the outside can enter the inside of the inner tube through the high-pressure oxygen tube, and then be discharged through the inner tube, the upper end of the outer tube extends to the inside of the gas pipe and is equipped with an adjustment part, the outer tube is communicated with the adjustment part, and the adjustment part can be controlled to communicate with the gas pipe or the high-pressure oxygen pipe by rotating the outer tube, when in use, the adjustment part can be communicated with the gas pipe, the external gas enters the inside of the outer tube through the gas pipe and is then discharged, and ignition cutting can be performed at this time.

[0005] Preferably, the adjusting part includes a fixed cover, which is fixedly connected to the outer tube, and an air inlet is provided on the side wall of the fixed cover. The fixed cover is rotatably connected to the inner tube, and a through-hole is provided on a section of the side wall of the inner tube located inside the fixed cover. The high-pressure oxygen entering the inner tube can enter the interior of the fixed cover through the through-hole, and then enter the interior of the outer tube. A baffle matched with the through-hole is fixedly connected to the interior of the fixed cover, and the baffle can seal the through-hole. A sealing cover matched with the air inlet is fixedly connected to the inner tube, and the sealing cover can seal the air inlet.

[0006] Preferably, one end of the baffle is fixedly connected to the inner side wall of the fixed cover, and the other end is fixedly connected to the upper end surface of the outer tube, so that the baffle can be driven to rotate synchronously when the outer tube is rotated.

[0007] Preferably, the sealing cover comprises a side ring and a top plate, the top plate is fixedly connected to the side ring, the side ring is rotatably connected to the outer tube, the opening angle of the top plate is matched with the curvature of the baffle, and the top plate can control the rotation angle of the baffle.

[0008] Preferably, a plurality of protrusions are fixedly connected to the outer side of the inner tube, and a groove matching the protrusions is provided on the inner side surface of the outer tube. The protrusions and the grooves are interference fit, so that the inner wall of the outer tube can vibrate when the outer tube is rotated.

[0009] Preferably, the shape of the protrusion is an arc, which can facilitate the staff to better rotate the outer tube.

[0010] Preferably, a sealing ring is fixedly connected to the outer side of the outer tube, the sealing bolt is meshedly connected to the gas pipe, and the sealing bolt is provided with a sealing groove matching the sealing ring. During installation, the outer tube can be inserted into the gas pipe first, and then the sealing bolt can be installed.

[0011] Preferably, a plurality of support blocks are fixedly connected between the high-pressure oxygen pipe and the gas pipe, so as to make the high-pressure oxygen pipe and the gas pipe more stable and strong.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. A fixed cover is set on the outer tube. By rotating the outer tube, the fixed cover can be connected to the gas pipe or high-pressure oxygen pipe. After the outer tube is dredged, the outer tube can be connected to the high-pressure oxygen pipe through the fixed cover, so that the carbon deposits in the outer tube can be blown out by high-pressure oxygen, ensuring the cleaning effect;

[0014] 2. A convex block is provided on the inner tube and a slot is provided on the outer tube. When the outer tube is rotated, the convex block will make the outer tube vibrate continuously, which can further improve the cleaning effect of carbon deposits;

[0015] 3. Support blocks are set on the high-pressure oxygen pipe and gas pipe brackets to make the high-pressure oxygen pipe and gas pipe more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the projection of the utility model.

[0018] Figure 3 It is an exploded view of the sealing bolt and the sealing ring of the utility model.

[0019] Figure 4 It is an exploded view of the inner tube and the outer tube of the utility model.

[0020] Figure 5 It is a schematic diagram of the baffle of the utility model before and after rotation.

[0021] In the figure: 1, inner tube, 2, outer tube, 3, high-pressure oxygen tube, 4, gas pipe, 5, support block, 6, fixed cover, 7, through-hole, 8, baffle, 9, air inlet, 10, sealing cover, 101, side ring, 102, top plate, 11, protrusion, 12, slot, 13, sealing ring, 14, sealing bolt, 15, sealing groove. DETAILED DESCRIPTION

[0022] The present invention is described below with specific embodiments, but is not intended to be a limitation of the present invention.

[0023] Embodiment 1

[0024] In this embodiment, a gas cutting head is provided, such as Figure 1 and Figure 3 As shown, it includes an inner tube 1 and an outer tube 2, the outer tube 2 is sleeved on the outer side of the inner tube 1, the outer tube 2 is rotatably connected to the inner tube 1, the inner tube 1 is communicated with the high-pressure oxygen tube 3, the high-pressure oxygen from the outside can enter the inner tube 1 through the high-pressure oxygen tube 3, and then be discharged through the inner tube 1, the upper end of the outer tube 2 extends to the inside of the gas pipe 4 and is installed with a regulating part, the outer tube 2 is communicated with the regulating part, and the regulating part can be controlled to communicate with the gas pipe 4 or the high-pressure oxygen tube 3 by rotating the outer tube 2, when in use, the regulating part can be communicated with the gas pipe 4, the external gas enters the inner part of the outer tube 2 through the gas pipe 4 and then is discharged, at this time, ignition cutting can be performed;

[0025] When cleaning carbon deposits, the staff can first loosen the carbon deposits with the help of a needle-shaped tool, and then connect the adjustment part with the high-pressure oxygen pipe 3. At this time, the high-pressure oxygen will also enter the interior of the outer tube 2 to blow out the loose carbon deposits.

[0026] like Figure 4 and Figure 5As shown, the regulating part includes a fixed cover 6, which is fixedly connected to the outer tube 2, and an air inlet 9 is provided on the side wall of the fixed cover 6. The fixed cover 6 is rotatably connected to the inner tube 1, and the gas in the gas pipe 4 can enter the interior of the fixed cover 6 through the air inlet 9, and then enter the interior of the outer tube 2. A through hole 7 is provided on a section of the side wall of the inner tube 1 located inside the fixed cover 6, and the high-pressure oxygen entering the interior of the inner tube 1 can enter the interior of the fixed cover 6 through the through hole 7, and then enter the interior of the outer tube 2. A baffle 8 adapted to the through hole 7 is fixedly connected to the interior of the fixed cover 6, and the baffle 8 can seal the through hole 7. When the baffle 8 seals the through hole 7, the high-pressure oxygen cannot enter the interior of the fixed cover 6. A sealing cover 10 adapted to the air inlet 9 is fixedly connected to the inner tube 1, and the sealing cover 10 can seal the air inlet 9. When the sealing cover 10 seals the air inlet 9, the gas cannot enter the interior of the fixed cover 6.

[0027] When the baffle 8 seals the through-hole 7, the air inlet 9 is in an open state, and vice versa, the through-hole 7 is in an open state, ensuring that the fuel gas or high-pressure oxygen enters the interior of the outer tube 2 alone, which will neither affect the cutting work nor the cleaning effect.

[0028] One end of the baffle 8 is fixedly connected to the inner wall of the fixed cover 6, and the other end is fixedly connected to the upper end surface of the outer tube 2. When the outer tube 2 is rotated, the baffle 8 can be driven to rotate synchronously, and the baffle 8 can better seal the through-hole 7.

[0029] The sealing cover 10 includes a side ring 101 and a top plate 102. The top plate 102 is fixedly connected to the side ring 101. The side ring 101 is rotatably connected to the outer tube 2. The opening angle of the top plate 102 is adapted to the curvature of the baffle 8. The top plate 102 can control the rotation angle of the baffle 8. Figure 5 When the baffle 8 is in contact with the upper right side of the top plate 102, it means that the baffle 8 seals the through-hole 7, and when the baffle 8 is in contact with the lower left side of the top plate 102, it means that the through-hole 7 is in an open state, which can facilitate the staff to control the opening and closing of the through-hole 7.

[0030] A sealing ring 13 is fixedly connected to the outer side surface of the outer tube 2, and a sealing bolt 14 is meshed and connected to the gas pipe 4, and the sealing bolt 14 is provided with a sealing groove 15 adapted to the sealing ring 13. During installation, the outer tube 2 can be inserted into the gas pipe 4 first, and then the sealing bolt 14 can be installed. At this time, the groove wall of the sealing groove 15 will fit with the sealing ring 13, so that the outer tube 2 can be rotated without affecting the sealing performance.

[0031] Embodiment 2

[0032] A plurality of protrusions 11 are fixedly connected to the outer side of the inner tube 1, and a groove 12 matched with the protrusion 11 is opened on the inner side surface of the outer tube 2. The protrusion 11 and the groove 12 are interference fit. When the outer tube 2 is rotated, the inner wall of the outer tube 2 can be vibrated. When cleaning carbon deposits, the outer tube 2 can be rotated back and forth multiple times to achieve a better effect of cleaning carbon deposits. At the same time, the protrusion 11 and the groove 12 can also prevent the outer tube 2 from rotating at will without external force, which can be safer when cutting.

[0033] like Figure 2 As shown, the shape of the protrusion 11 is an arc shape, and the arc shape can facilitate the staff to better rotate the outer tube 2.

[0034] Embodiment 3

[0035] A plurality of support blocks 5 are fixedly connected between the high-pressure oxygen pipe 3 and the gas pipe 4, so as to make the high-pressure oxygen pipe 3 and the gas pipe 4 more stable and strong.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A gas cutting head, characterized in that: The invention comprises an inner tube (1) and an outer tube (2), wherein the outer tube (2) is sleeved on the outer side of the inner tube (1), the inner tube (1) is in communication with a high-pressure oxygen tube (3), the upper end of the outer tube (2) extends to the inside of a gas tube (4) and is provided with an adjusting part, the outer tube (2) is in communication with the adjusting part, and the adjusting part can be controlled to communicate with the gas tube (4) or the high-pressure oxygen tube (3) by rotating the outer tube (2).

2. A gas cutting head according to claim 1, characterized in that: The regulating portion comprises a fixed cover (6), the fixed cover (6) being fixedly connected to the outer tube (2), and an air inlet (9) being provided on a side wall of the fixed cover (6), a through opening (7) being provided on a section of the side wall of the inner tube (1) located inside the fixed cover (6), a baffle (8) matching the through opening (7) being fixedly connected inside the fixed cover (6), and a sealing cover (10) matching the air inlet (9) being fixedly connected to the inner tube (1).

3. A gas cutting head according to claim 2, characterized in that: One end of the baffle (8) is fixedly connected to the inner wall of the fixed cover (6), and the other end is fixedly connected to the upper end surface of the outer tube (2).

4. A gas cutting head according to claim 3, characterized in that: The sealing cover (10) comprises a side ring (101) and a top plate (102); the opening angle of the top plate (102) is adapted to the curvature of the baffle plate (8).

5. A gas cutting head according to claim 4, characterized in that: A plurality of protrusions (11) are fixedly connected to the outer side of the inner tube (1), and a clamping groove (12) matching the protrusions (11) is provided on the inner side surface of the outer tube (2).

6. A gas cutting head according to claim 5, characterized in that: The protrusion (11) is in the shape of an arc.

7. A gas cutting head according to claim 1, characterized in that: A sealing ring (13) is fixedly connected to the outer surface of the outer tube (2), a sealing bolt (14) is meshingly connected to the gas pipe (4), and the sealing bolt (14) is provided with a sealing groove (15) that matches the sealing ring (13).

8. A gas cutting head according to claim 1, characterized in that: A plurality of support blocks (5) are fixedly connected between the high-pressure oxygen pipe (3) and the fuel gas pipe (4).

Images