Cutting gun with cutting torch convenient to disassemble

Abstract

The utility model relates to a cutting gun with a cutting torch convenient to disassemble. Comprising a cutting torch, a cutting torch connecting piece installed on a cutting gun, a fixing piece used for fixing the cutting torch, a limiting mechanism arranged on an inner cavity of the cutting torch and a clamping groove formed in the cutting torch connecting piece. An annular limiting groove is formed in the bottom end of the cutting torch connecting piece. The top end of the cutting torch is embedded in the annular limiting groove. The fixing piece is connected to the cutting torch connecting piece and the cutting torch. The limiting mechanism abuts against the clamping groove. The technical problems that in the prior art, a cutting torch and a cutting gun are mostly of an integrated welding structure, after the cutting torch is damaged, workers need to replace the whole cutting gun, and then the cutting torch replacement cost is increased are solved.

Description

Technical Field

[0001] The utility model relates to the field of cutting guns, in particular to a cutting gun with a conveniently disassembled cutting nozzle. Background Art

[0002] Flame cutting machine is a machine that uses high-temperature flame to cut metal materials. It injects combustible gas into the cutting area and ignites these gases through sparks. The high-temperature flame generated is used as a cutting tool to cut by heating and oxidizing metal materials. Metal pipes are a common type of pipes. Flame cutting machines can be used to cut pipe interfaces such as bevel cutting, related wire cutting, and special-shaped cutting to meet the construction requirements of different sites. The tool with a valve used for cutting with a cutting gun is slightly like a gun and has a nozzle at the front. It is also called a cutting torch. The cutting gun generally has three switches. The top one is the high-pressure oxygen switch, which is commonly known as the high-wind switch; the one below the high-wind switch is the mixed gas switch; and the last switch is the acetylene switch. The cutting nozzle is a component placed at the front end of the cutting gun for mixing gas. In the industrial production process, some metal materials need to be cut to a certain extent so that the metal materials can be cut into the shape described. In order to make cutting more convenient, gasification cutting is often used. When gasification cutting is performed, corresponding cutting nozzles are often installed to ensure normal flame spraying.

[0003] When the cutting nozzle is in use, the internal structure of the cutting nozzle will be damaged due to the long-term spraying of flame. If the cutting nozzle is not replaced for a long time, the stability of the cutting nozzle during cutting will be affected. The cutting nozzle and the cutting gun in the existing technical solutions are mostly one-piece welded structures. This means that after the cutting nozzle is damaged, the staff needs to replace the entire cutting gun, which will increase the cost of replacing the cutting nozzle. Utility Model Content

[0004] The embodiment of the present application solves the technical problem that the cutting nozzle and the cutting gun in the prior art solutions are mostly an integrated welded structure, which results in the staff having to replace the entire cutting gun when the cutting nozzle is damaged, thereby increasing the cost of replacing the cutting nozzle.

[0005] The technical solution adopted in the embodiment of the present application is as follows:

[0006] A cutting gun with an easily disassembled cutting nozzle comprises a cutting nozzle, a cutting nozzle connecting piece mounted on the cutting gun, a fixing piece for fixing the cutting nozzle, a limiting mechanism arranged on an inner cavity of the cutting nozzle, and a slot provided on the cutting nozzle connecting piece; an annular limiting groove is provided at the bottom end of the cutting nozzle connecting piece; the top end of the cutting nozzle is embedded in the annular limiting groove; the fixing piece is connected to the cutting nozzle connecting piece and the cutting nozzle; and the limiting mechanism abuts against the slot.

[0007] A further technical solution is: the limiting mechanism includes a limiting block arranged on the inner cavity of the cutting nozzle, a block for abutting against the slot, a spring for buffering the block, and a telescopic rod for limiting the spring; the spring is arranged around the telescopic rod; the telescopic end of the telescopic rod is connected to the block; the other end of the telescopic rod is connected to the limiting block.

[0008] A further technical solution is: the cutting gun with conveniently detachable cutting nozzle further comprises an annular sealing block; the annular sealing block is arranged in the annular limiting groove.

[0009] A further technical solution is: the cutting gun with convenient removal of the cutting nozzle also includes a protrusion; and a plurality of groups of the protrusions arranged in a circular array are arranged on the outside of the cutting nozzle connecting piece.

[0010] A further technical solution is: the fixing member is a bolt.

[0011] A further technical solution is that threads are arranged on the outside of the cutting nozzle connecting piece.

[0012] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0013] 1. Due to the arrangement of the cutting nozzle, the cutting nozzle connector, the fixing part, the limiting mechanism, the card slot and the fixing part, when the cutting nozzle is inserted into the annular limiting groove provided at the bottom end of the cutting nozzle connector, and each set of limiting mechanisms on the inner cavity of the cutting nozzle is respectively embedded in the corresponding card slot, each set of fixing parts can correspond to the position of each set of threaded holes, so that it is convenient for the staff to fix the cutting nozzle on the cutting nozzle connector. When the cutting nozzle needs to be disassembled and replaced, the staff can disengage the cutting nozzle from the cutting nozzle connector by screwing out each set of fixing parts in turn, and then the cutting nozzle can be disassembled from the cutting gun. The whole operation process is simple and reliable, so it is convenient for the staff to disassemble and replace the cutting nozzle.

[0014] 2. Due to the use of the setting of the limit block, the stopper, the spring and the telescopic rod, when the limit mechanism is embedded in the slot, the slot will respectively abut against the stoppers at both ends of the limit block, and at the same time will generate a certain extrusion force on the two groups of stoppers. At this time, the two groups of stoppers subjected to the extrusion force will compress the corresponding springs and the telescopic rod. The spring in the compressed state will generate elastic force, so that the two groups of stoppers will firmly abut against the slot, and then the position where the cutting nozzle is inserted into the cutting nozzle connector can be limited. When the spring is in a compressed state, the telescopic rod can prevent the spring from being deformed, and then it can play a certain protective role on the spring.

[0015] 3. Due to the setting of the annular sealing block, when the cutting nozzle is inserted into the annular limiting groove opened at the bottom end of the cutting nozzle connector, the top end of the cutting nozzle will be tightly attached to the annular sealing block, which can make the sealing effect between the cutting nozzle and the cutting nozzle connector better.

[0016] 4. Due to the setting of the protrusion, when the staff holds the cutting nozzle connecting piece and disassembles and replaces the cutting nozzle, the protrusion can increase the friction when holding the cutting nozzle connecting piece, thereby making it more convenient for the staff to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the overall structure of a cutting gun with a conveniently disassembled cutting nozzle in an embodiment of the utility model.

[0018] Figure 2 It is a schematic diagram of the overall internal structure of a cutting gun for easily disassembling a cutting nozzle in an embodiment of the utility model.

[0019] Figure 3 It is a partial structural schematic diagram for reflecting the limiting mechanism in the embodiment of the utility model.

[0020] Figure 4 It is a partial structural schematic diagram for reflecting the positional relationship between the annular sealing block and the annular limiting groove in the embodiment of the utility model.

[0021] In the figure: 1, cutting nozzle; 2, cutting nozzle connecting piece; 21, annular limiting groove; 3, fixing piece; 4, limiting mechanism; 41, limiting block; 42, stopper; 43, spring; 44, telescopic rod; 5, slot; 6, annular sealing block; 7, protrusion. DETAILED DESCRIPTION

[0022] The embodiment of the present application solves the technical problem that the cutting nozzle and the cutting gun in the prior art solutions are mostly an integrated welded structure, which results in the staff having to replace the entire cutting gun when the cutting nozzle is damaged, thereby increasing the cost of replacing the cutting nozzle.

[0023] The technical solution in the embodiment of the present application is to solve the above problems, and the overall idea is as follows:

[0024] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] A cutting gun with a conveniently detachable cutting nozzle, such as Figure 1 and Figure 2As shown, it includes a cutting nozzle 1, a cutting nozzle connecting member 2 installed on the cutting gun, a fixing member 3 for fixing the cutting nozzle 1, a limiting mechanism 4 arranged on the inner cavity of the cutting nozzle 1, and a clamping groove 5 provided on the cutting nozzle connecting member 2. An annular limiting groove 21 is provided at the bottom end of the cutting nozzle connecting member 2. The top end of the cutting nozzle 1 is embedded in the annular limiting groove 21. The fixing member 3 is connected to the cutting nozzle connecting member 2 and the cutting nozzle 1. The limiting mechanism 4 abuts against the clamping groove 5.

[0026] The top of the cutting nozzle 1 is detachably inserted into the annular limiting groove 21. Several groups of limiting mechanisms 4 arranged in a circular array are fixedly connected to the inner cavity of the cutting nozzle 1. Adaptive card slots 5 are provided at the bottom end of the inner cavity of the cutting nozzle connector 2 and at the corresponding positions of each group of limiting mechanisms 4. Several groups of fixing members 3 arranged in a circular array are provided on the outer side of the cutting nozzle connector 2. The fixing members 3 are preferably bolts. Threaded holes are provided at the corresponding positions of the cutting nozzle 1 and each group of fixing members 3. Each group of fixing members 3 passes through the cutting nozzle connector 2 and is threadedly connected to the corresponding threaded holes. Threads are provided at the top of the outer side of the cutting nozzle connector 2. The cutting nozzle connector 2 is threadedly connected to the cutting gun.

[0027] Due to the arrangement of the cutting nozzle 1, the cutting nozzle connector 2, the fixing member 3, the limiting mechanism 4, the slot 5 and the fixing member 3, when the cutting nozzle 1 is inserted into the annular limiting slot 21 provided at the bottom end of the cutting nozzle connector 2, and each set of limiting mechanisms 4 on the inner cavity of the cutting nozzle 1 is respectively embedded in the corresponding slot 5, each set of fixing members 3 can correspond to the position of each set of threaded holes, thereby facilitating the staff to fix the cutting nozzle 1 on the cutting nozzle connector 2. When the cutting nozzle 1 needs to be disassembled and replaced, the staff can disengage the cutting nozzle 1 from the cutting nozzle connector 2 by screwing out each set of fixing members 3 in turn, thereby detaching the cutting nozzle 1 from the cutting nozzle connector 2, and thus detaching the cutting nozzle 1 from the cutting gun. The entire operation process is simple and reliable, thereby facilitating the staff to disassemble and replace the cutting nozzle 1.

[0028] like Figure 3 As shown, the limiting mechanism 4 includes a limiting block 41 arranged on the inner cavity of the cutting nozzle 1, a stopper 42 for abutting against the card slot 5, a spring 43 for buffering the stopper 42, and a telescopic rod 44 for limiting the spring 43. The spring 43 is arranged around the telescopic rod 44. The telescopic end of the telescopic rod 44 is connected to the stopper 42. The other end of the telescopic rod 44 is connected to the limiting block 41.

[0029] The limiting mechanism 4 includes two groups of blocks 42. The two groups of blocks 42 are respectively located at the two ends of the limiting block 41. The limiting block 41 is fixedly connected to the inner cavity of the cutting nozzle 1. Three groups of telescopic rods 44 arranged in a linear array are arranged at both ends of the limiting block 41. Springs 43 are arranged around the outside of each group of telescopic rods 44. One end of each group of springs 43 is fixedly connected to the corresponding block 42. The other end of each group of springs 43 is fixedly connected to the limiting block 41. The telescopic end of each group of telescopic rods 44 is fixedly connected to the corresponding block 42. The other end of each group of telescopic rods 44 is fixedly connected to the limiting block 41. The top ends of the two groups of blocks 42 are arranged as inclined structures, so as to facilitate the block 42 to be embedded in the card slot 5.

[0030] Due to the arrangement of the limit block 41, the stopper 42, the spring 43 and the telescopic rod 44, when the limit mechanism 4 is embedded in the card slot 5, the card slot 5 will respectively abut against the stoppers 42 at both ends of the limit block 41, and at the same time will generate a certain extrusion force on the two groups of stoppers 42. At this time, the two groups of stoppers 42 subjected to the extrusion force will compress the corresponding springs 43 and the telescopic rod 44, and the springs 43 in the compressed state will generate elastic force, so that the two groups of stoppers 42 can be firmly abutted against the card slot 5, and then the position of the cutting nozzle 1 inserted into the cutting nozzle connector 2 can be limited. When the spring 43 is in the compressed state, the telescopic rod 44 can prevent the spring 43 from being deformed, and then can play a certain protective role on the spring 43.

[0031] like Figure 4 As shown, the cutting gun with conveniently detachable cutting nozzle further comprises an annular sealing block 6. The annular sealing block 6 is arranged in the annular limiting groove 21.

[0032] The annular sealing block 6 is fixedly connected in the annular limiting groove 21 .

[0033] Due to the provision of the annular sealing block 6, when the cutting nozzle 1 is inserted into the annular limiting groove 21 opened at the bottom end of the cutting nozzle connector 2, the top end of the cutting nozzle 1 will be tightly attached to the annular sealing block 6, which can achieve a better sealing effect between the cutting nozzle 1 and the cutting nozzle connector 2.

[0034] like Figure 1 As shown, the cutting gun with convenient removal of the cutting nozzle also includes a protrusion 7. The outer side of the cutting nozzle connecting member 2 is provided with a plurality of groups of protrusions 7 arranged in a circular array.

[0035] A plurality of groups of protrusions 7 arranged in a circular array are fixedly connected to the outer side of the cutting nozzle connecting piece 2 .

[0036] Due to the provision of the protrusion 7, when the worker holds the cutting nozzle connector 2 and disassembles and replaces the cutting nozzle 1, the protrusion 7 can increase the friction force when holding the cutting nozzle connector 2, thereby making it more convenient for the worker to operate.

[0037] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0038] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A cutting gun with a conveniently detachable cutting nozzle, characterized in that , comprising a cutting nozzle (1), a cutting nozzle connecting member (2) mounted on a cutting gun, a fixing member (3) for fixing the cutting nozzle (1), a limiting mechanism (4) arranged on the inner cavity of the cutting nozzle (1), and a clamping groove (5) provided on the cutting nozzle connecting member (2); an annular limiting groove (21) is provided at the bottom end of the cutting nozzle connecting member (2); the top end of the cutting nozzle (1) is embedded in the annular limiting groove (21); the fixing member (3) is connected to the cutting nozzle connecting member (2) and the cutting nozzle (1); the limiting mechanism (4) abuts against the clamping groove (5).

2. A cutting gun with a conveniently detachable cutting nozzle as claimed in claim 1, characterized in that: The limiting mechanism (4) comprises a limiting block (41) arranged on the inner cavity of the cutting nozzle (1), a stopper (42) for abutting against the slot (5), a spring (43) for buffering the stopper (42), and a telescopic rod (44) for limiting the spring (43); the spring (43) is arranged around the telescopic rod (44); the telescopic end of the telescopic rod (44) is connected to the stopper (42); and the other end of the telescopic rod (44) is connected to the limiting block (41).

3. A cutting gun with a conveniently detachable cutting nozzle as claimed in claim 1, characterized in that: The cutting gun with a conveniently detachable cutting nozzle further comprises an annular sealing block (6); the annular sealing block (6) is arranged in the annular limiting groove (21).

4. A cutting gun with a conveniently detachable cutting nozzle as claimed in claim 1, characterized in that: The cutting gun with a conveniently detachable cutting nozzle further comprises a protrusion (7); a plurality of groups of the protrusions (7) arranged in a circular array are arranged on the outside of the cutting nozzle connecting piece (2).

5. A cutting gun with a conveniently detachable cutting nozzle as claimed in claim 1, characterized in that: The fixing member (3) is a bolt.

6. A cutting gun with a conveniently detachable cutting nozzle as claimed in claim 1, characterized in that: The outer side of the cutting nozzle connecting piece (2) is provided with threads.

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