Elbow cutting torch

Abstract

The utility model discloses an elbow cutting nozzle which comprises a connecting pipe, a connector part and a bending cutting pipe, an abutting side is installed below the right side of the bending cutting pipe, a connecting mechanism is installed above the abutting side, and a fixing mechanism is installed on the connecting mechanism. The clamping hoop can be connected to the connecting pipe in a sleeving mode, then the abutting edge drives the clamping block to move till the clamping block is clamped into the clamping groove of the bent cutting pipe, then the bolt and the nut are screwed, and the clamping hoop is fixed to the connecting pipe, so that when cutting torch work is carried out for a period of time, and the bent cutting pipe is damaged, the abutting edge is detached, and then the clamping hoop is fixed to the connecting pipe. Meanwhile, a high-temperature-resistant layer is machined at the position, close to the bent cutting pipe, of the abutting flange, so that the service life of the abutting flange can be prolonged, the abutting flange is not prone to being damaged due to overheating, cost is saved, and the using effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting nozzles of welding and cutting torches, in particular to an elbow cutting nozzle. Background Technique

[0002] A cutting torch refers to a gas cutting tool that uses oxygen and fuel gas to be evenly mixed in a certain proportion as a heat source to preheat the workpiece to be cut, sprays cutting gas onto the fully preheated workpiece to make it burn, and uses the spraying energy to remove molten base metal and oxidation products. The part of the cutting torch that sprays the mixed gas formed by the fuel gas and oxygen is called a cutting nozzle.

[0003] For example, an elbow cutting nozzle with the publication number of CN215393056U belongs to the technical field of cutting nozzles of welding and cutting torches, including: a joint. The beneficial effect of this utility model is that it can ensure a smooth cut surface when gouging the back of the weld.

[0004] For this elbow cutting nozzle, an abutting edge is provided on the outer wall of the lower end of the bent cutting tube to ensure the smoothness of the cut surface. However, since the abutting edge is fixedly arranged with the bent cutting tube, and the bent cutting tube is a vulnerable part, after a period of cutting torch work, the bent cutting tube needs to be replaced. In order to improve the cutting effect, each bent cutting tube needs an additional step of machining the abutting edge during production, so the cost is relatively high. In view of this, it is very necessary to design an elbow cutting nozzle to solve this problem. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides an elbow cutting nozzle, which solves the problem that in the existing elbow cutting nozzle, since the abutting edge is fixedly arranged with the bent cutting tube, and the bent cutting tube is a vulnerable part, after a period of cutting torch work, the bent cutting tube needs to be replaced. In order to improve the cutting effect, each bent cutting tube needs an additional step of machining the abutting edge during production, so the cost is relatively high.

[0006] To achieve the above object, the utility model is realized through the following technical solutions: an elbow cutting nozzle, including a connecting pipe, a joint part, and a bent cutting tube. The joint part is integrally formed above the connecting pipe. The bent cutting tube is processed below the connecting pipe. An abutting edge is installed below the right side of the bent cutting tube. A connecting mechanism is installed above the abutting edge, and a fixing mechanism is installed on the connecting mechanism. The outer walls of the front and rear ends below the bent cutting tube are both processed with bevelling.

[0007] Preferably, the connecting mechanism includes a clamp sleeved on the outer wall of the connecting pipe. A cross bar is fixedly connected to the right side of the clamp, and an L-shaped plate is fixedly connected to the right side of the cross bar. A second connecting pipe is fixedly connected to the lower side of the L-shaped plate, and the lower side of the second connecting pipe is fixedly connected to the abutting edge.

[0008] Preferably, a high-temperature resistant layer is fixedly connected to the left side of the abutting edge.

[0009] Preferably, a clamping block is fixedly connected to the lower left side of the high-temperature resistant layer, and the clamping block is clamped and connected to the clamping groove of the bent cutting pipe.

[0010] Preferably, the fixing mechanism includes a bolt installed at the through hole of the clamp. A nut is threadedly connected to the outer wall of the right end of the bolt. Gaskets that fit the outer wall of the clamp are installed between the bolt and the nut, and the gaskets are sleeved on the outer wall of the bolt.

[0011] Preferably, a cutting spray hole is processed in the middle of the lower surface of the bent cutting pipe, and a number of preheating spray holes processed on the lower surface of the bent cutting pipe are arranged outside the cutting spray hole.

[0012] Beneficial effects

[0013] The utility model provides an elbow cutting nozzle, which has the following beneficial effects:

[0014] The clamp can be sleeved on the connecting pipe, then the bolt, nut and gasket are installed on the clamp. After that, the position of the clamp is adjusted so that the abutting edge drives the clamping block to move until the clamping block is clamped into the clamping groove of the bent cutting pipe. Then the bolt and nut are tightened to fix the clamp on the connecting pipe. In this way, the abutting edge and the bent cutting pipe are designed as separate parts. When the bent cutting pipe is damaged after a period of torch work, the abutting edge is disassembled and reinstalled on a new bent cutting pipe. At the same time, a high-temperature resistant layer is processed near the bent cutting pipe on the abutting edge, which can improve the service life of the abutting edge and is not easily damaged by overheating, thus saving costs and having better use effects. Description of the drawings

[0015] Figure 1 is a schematic structural diagram of the utility model.

[0016] Figure 2 is a plane cross-sectional view of the utility model.

[0017] Figure 3 is a partially enlarged schematic view of the utility model.

[0018] Figure 4 is a partially enlarged schematic view of the utility model.

[0019] Figure 5 is a partial bottom view of the utility model.

[0020] In the figure: 1, connecting pipe; 2, joint head; 3, bent cutting pipe; 4, abutting edge; 5, clamping block; 6, clamp; 7, cross bar; 8, L-shaped plate; 9, second connecting pipe; 10, high-temperature resistant layer; 11, bolt; 12, nut; 13, gasket; 14, edge trimming; 15, cutting spray hole; 16, preheating spray hole. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-5 , the present invention provides a technical solution: an elbow cutting nozzle, including a connecting pipe 1, a joint head 2 and a bent cutting pipe 3. The joint head 2 is integrally formed above the connecting pipe 1, the bent cutting pipe 3 is processed below the connecting pipe 1, an abutting edge 4 is installed below the right side of the bent cutting pipe 3, a connecting mechanism is installed above the abutting edge 4, and a fixing mechanism is installed on the connecting mechanism. Edge trimmings 14 are processed on the outer walls of the front and rear ends below the bent cutting pipe 3;

[0023] The connecting pipe 1, the joint head 2 and the bent cutting pipe 3 are integrally formed to form an elbow cutting nozzle. A channel is processed inside the whole, through which oxygen can pass. The joint head 2 can be connected to a cutting torch. An abutting edge 4 is arranged below the right side of the bent cutting pipe 3. In this way, when in use, the abutting edge 4 is abutted against the back of the workpiece weld for root cleaning, which can effectively prevent the shaking of the elbow cutting nozzle, and the cut section can maintain consistent smoothness.

[0024] In this embodiment, it is further set that the connecting mechanism includes a clamp 6 sleeved on the outer wall of the connecting pipe 1. A cross bar 7 is fixedly connected to the right side of the clamp 6, an L-shaped plate 8 is fixedly connected to the right side of the cross bar 7, a second connecting pipe 9 is fixedly connected below the L-shaped plate 8, and the second connecting pipe 9 is fixedly connected to the abutting edge 4 below;

[0025] The L-shaped plate 8 can be connected through the cross bar 7 on the right side of the clamp 6, and the abutting edge 4 can be connected through the second connecting pipe 9 below the L-shaped plate 8 to limit the abutting edge 4.

[0026] In this embodiment, it is further set that a high-temperature resistant layer 10 is fixedly connected to the left side of the abutting edge 4;

[0027] A high-temperature resistant layer 10 is provided on the left side of the abutting edge 4. The high-temperature resistant layer 10 is made of silicon carbide material and has relatively high high-temperature resistance.

[0028] In this embodiment, it is further set that a clamping block 5 is fixedly connected to the lower left side of the high-temperature resistant layer 10, and the clamping block 5 is clamped and connected to the clamping groove of the bent cutting pipe 3;

[0029] A clamping groove can be processed on the lower right side of the bent cutting pipe 3. After the clamping block 5 is inserted into the clamping groove of the bent cutting pipe 3, the abutting edge 4 can be fixed.

[0030] In this embodiment, it is further set that the fixing mechanism includes a bolt 11 installed at the through hole of the clamp 6. A nut 12 is threadedly connected to the outer wall of the right end of the bolt 11. Gaskets 13 that fit the outer wall of the clamp 6 are installed between the bolt 11 and the nut 12, and the gaskets 13 are sleeved on the outer wall of the bolt 11;

[0031] The nut 12, bolt 11 and gasket 1 can be installed on the clamp 6, so that the clamp 6 can be fixed to the connecting pipe 1.

[0032] In this embodiment, it is further set that a cutting spray hole 15 is processed in the middle of the lower surface of the bent cutting pipe 3, and a number of preheating spray holes 16 are provided on the lower surface of the bent cutting pipe 3 outside the cutting spray hole 15;

[0033] The cutting spray hole 15 and a number of preheating spray holes 16 are processed in the middle of the lower surface of the bent cutting pipe 3. The preheating spray holes 16 are evenly distributed in an arc with the midpoint of the cutting spray hole 15 as the center, so that the use effect is better.

[0034] Through those skilled in the art, the components in this case are connected in sequence. For the specific connection and operation sequence, the following working principle should be referred to. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process.

[0035] Embodiment: When this device needs to be used, the clamp 6 can be sleeved on the connecting pipe 1, then the bolt 11, nut 12 and gasket 13 are installed on the clamp 6. After that, the position of the clamp 6 is adjusted so that the abutting edge 4 drives the clamping block 5 to move until the clamping block 5 is inserted into the clamping groove of the bent cutting pipe 3. Then the bolt 11 and the nut 12 are tightened to fix the clamp 6 to the connecting pipe 1. In this way, the abutting edge 4 and the bent cutting pipe 3 are designed as separate parts. When the bent cutting pipe 3 is damaged after a period of torch work, the abutting edge 4 is disassembled and reinstalled on a new bent cutting pipe 3. At the same time, a high-temperature resistant layer 10 is processed at the position where the abutting edge 4 is close to the bent cutting pipe 3. In this way, the service life of the abutting edge 4 can be improved, and it is not easy to be damaged due to overheating, thus saving costs, so the use effect is better.

[0036] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0037] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elbow cutting nozzle, comprising a connecting tube (1), a joint portion (2) and a bending cutting tube (3), wherein the upper portion of the connecting tube (1) is integrally formed with the joint portion (2), and the lower portion of the connecting tube (1) is processed with the bending cutting tube (3), characterized in that: A contact edge (4) is installed at the lower right side of the bending and cutting tube (3), a connecting mechanism is installed above the contact edge (4), and a fixing mechanism is installed on the connecting mechanism. The outer walls of the front and rear ends of the lower side of the bending and cutting tube (3) are both processed with chamfered edges (14).

2. The elbow cutting nozzle according to claim 1, characterized in that: The connection mechanism comprises a clamp (6) sleeved on the outer wall of the connection pipe (1), a cross bar (7) is fixedly connected to the right side of the clamp (6), and an L-shaped plate (8) is fixedly connected to the right side of the cross bar (7), a second connection pipe (9) is fixedly connected below the L-shaped plate (8), and the bottom of the second connection pipe (9) is fixedly connected to the abutting edge (4).

3. The elbow cutting nozzle according to claim 1, characterized in that: A high temperature resistant layer (10) is fixedly connected to the left side of the abutting edge (4).

4. The elbow cutting nozzle according to claim 3, characterized in that: A clamping block (5) is fixedly connected to the lower left side of the high temperature resistant layer (10), and the clamping block (5) is clamped and connected to the clamping groove of the bending and cutting tube (3).

5. The elbow cutting nozzle according to claim 1, characterized in that: The fixing mechanism comprises a bolt (11) installed at a through hole of the clamp (6); a nut (12) is threadedly connected to the outer wall of the right end of the bolt (11); a gasket (13) is installed between the bolt (11) and the nut (12) and is in contact with the outer wall of the clamp (6); and the gasket (13) is sleeved on the outer wall of the bolt (11).

6. The elbow cutting nozzle according to claim 1, characterized in that: A cutting spray hole (15) is machined in the middle of the lower surface of the bending cutting tube (3), and a plurality of preheating spray holes (16) machined on the lower surface of the bending cutting tube (3) are arranged outside the cutting spray hole (15).

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