CN217109555U

CN217109555U - Isobaric cutting torch

Info

Publication number: CN217109555U
Application number: CN202220401540.0U
Authority: CN
Inventors: 童芬波; 陈一; 徐祖灵
Original assignee: Ningbo Longxing Welding Cutting Technology Stock Co ltd
Current assignee: Ningbo Longxing Welding Cutting Technology Stock Co ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-08-02
Anticipated expiration: 2032-02-25

Abstract

The utility model provides an isobaric formula cutting torch belongs to metal cutting technical field, include: the cutting torch body is sequentially connected with a cutting oxygen pipe, a preheating oxygen pipe and a gas pipe; the connector, its detachably is connected with cuts chews, the cutting oxygen pipe preheat the oxygen pipe and the gas pipe all with the connector is connected, cut to chew and set gradually first hole, second hole and third hole, the cutting oxygen pipe with first hole intercommunication, preheat the oxygen pipe with second hole intercommunication, the gas pipe with third hole intercommunication. The utility model has the advantages that: the cutting oxygen pipe, the preheating oxygen pipe and the fuel gas pipe which are sequentially arranged from top to bottom have low manufacturing requirements on the cutting nozzle, no special hole needs to be formed in the designated position of the cutting torch, the cutting nozzle is only connected to the connecting head to enable the pipe bodies to be respectively communicated with the holes, and the cutting oxygen pipe and the preheating oxygen pipe are located above the fuel gas pipe and are not easy to have a tempering phenomenon.

Description

Isobaric cutting torch

Technical Field

The utility model belongs to the technical field of metal cutting tool, a constant pressure formula cutting torch is related to.

Background

The cutting torch is used for mixing oxygen and acetylene in proportion to form preheating flame, and spraying high-pressure pure oxygen onto a cut workpiece to burn cut metal in oxygen jet flow, and the oxygen jet flow blows away slag (oxide) generated by burning to form a cutting slit. Cutting torches are the primary tools for gas cutting workpieces. But when using the cutting torch at present, often need press the switch-on of cutting oxygen handle in order to keep cutting oxygen pipeline all the time, be not convenient for operating personnel to operate and lead to cutting oxygen gas flow unstability easily, influence cutting efficiency.

For example, in a utility model patent application No. cn202120171914.x, there is provided a constant pressure torch comprising: the cutting torch comprises a cutting torch body, wherein the cutting torch body comprises an air inlet end, an air outlet end and a cutting oxygen handle movably connected to the cutting torch body, a button assembly is mounted on the cutting oxygen handle, and the button assembly is in clamping fit with the cutting torch body. The utility model provides a pair of constant pressure formula cutting torch through the button subassembly that sets up on the cutting oxygen handle for the cutting oxygen handle can be fixed with cutting torch main part joint, and then control cutting oxygen pipe switches on all the time, need not operating personnel and presses cutting oxygen handle always, convenient laborsaving and stable output hyperbaric oxygen.

In summary, in some prior art solutions, the cutting oxygen pipe, the preheating oxygen pipe and the gas pipe in the main gas pipe are distributed in a triangular manner, and it is difficult for the three holes to be respectively aligned with the three pipe bodies during the manufacture of the cutting tip, which is complicated to manufacture and easy to generate errors, and has a large improvement space.

Disclosure of Invention

The utility model aims at the above-mentioned problem that prior art exists, provide an isobaric cutting torch.

The purpose of the utility model can be realized by the following technical proposal: an isostatic torch, comprising:

the cutting torch body is sequentially connected with a cutting oxygen pipe, a preheating oxygen pipe and a gas pipe; the connector, its detachably is connected with cuts chews, the cutting oxygen pipe preheat the oxygen pipe and the gas pipe all with the connector is connected, cut to chew and set gradually first hole, second hole and third hole, the cutting oxygen pipe with first hole intercommunication, preheat the oxygen pipe with second hole intercommunication, the gas pipe with third hole intercommunication.

Preferably, the cutting torch further comprises an oxygen joint and a gas joint, wherein the oxygen joint and the gas joint are both connected with the cutting torch body, the cutting oxygen pipe and the preheating oxygen pipe are both communicated with the oxygen joint, and the gas pipe is communicated with the gas joint.

Preferably, the cutting torch body is provided with a first valve cavity and a first valve core, the cutting oxygen pipe, the first valve cavity and the oxygen connector are integrally communicated, the first valve core is arranged in the first valve cavity and can block an inlet of the first valve cavity, and the first valve core penetrates through the wall surface of the first valve cavity and is provided with a lifting block convenient to lift.

Preferably, the cutting torch body is hinged to a handle, one end of the handle is provided with a connecting part which is connected with the lifting block in an interlocking manner, the other end of the handle is provided with a handle part, and a hinged point of the handle and the cutting torch body is located between the connecting part and the handle part.

Preferably, the first valve cavity is provided with a return spring, two ends of the return spring are respectively connected with the cutting torch body and the first valve core in an abutting mode, and the return spring pushes the first valve core to block an inlet of the first valve cavity.

Preferably, the first valve core is provided with a sealing gasket, and the first valve core can be in interference connection with the cutting torch body through the sealing gasket.

Preferably, the cutting torch body is provided with a second valve cavity and a second valve core, the preheating oxygen pipe, the second valve cavity and the oxygen connector are integrally communicated, the second valve core is arranged in the second valve cavity and can block an inlet of the second valve cavity, and the second valve core is connected with a first adjusting hand wheel.

Preferably, the cutting torch body is provided with a third valve cavity and a third valve core, the gas pipe, the third valve cavity and the gas joint are integrally communicated, the third valve core is arranged in the third valve cavity and can seal an inlet of the third valve cavity, and the third valve core is connected with a second adjusting hand wheel.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the cutting oxygen pipe, the preheating oxygen pipe and the fuel gas pipe which are sequentially arranged from top to bottom have low manufacturing requirements on the cutting nozzle, no special hole needs to be formed in the designated position of the cutting torch, the cutting nozzle is only connected to the connecting head to enable the pipe bodies to be respectively communicated with the holes, and the cutting oxygen pipe and the preheating oxygen pipe are located above the fuel gas pipe and are not easy to have a tempering phenomenon.

2. The lifting block is lifted to control the first valve core to open the inlet of the first valve cavity, so that oxygen in the oxygen supply joint can continue to move towards the cutting oxygen pipe through the first valve cavity, and whether oxygen is continuously supplied into the cutting oxygen pipe is controlled.

3. The hinged point of the handle and the cutting torch body is positioned between the connecting part and the handle part, so that the lifting block can be lifted by pressing the handle part, the cutting torch body is held by a hand during specific operation, and the first valve cavity can be continuously opened by controlling and pressing the handle part by a thumb through the connecting part and the lifting block.

4. The two ends of the reset spring are respectively connected with the cutting torch body and the first valve core in an abutting mode, the reset spring pushes the first valve core to block the inlet of the first valve cavity, and therefore the function of automatic reset of the first valve core is achieved, and the first valve cavity is in a closed state under the normal state.

5. The first adjusting hand wheel is screwed to control the second valve core to seal and block the inlet of the second valve cavity, so that whether oxygen is continuously provided in the preheating oxygen pipe is controlled, and the second adjusting hand wheel is screwed to control the third valve core to seal and block the inlet of the third valve cavity, so that whether gas is continuously provided in the gas pipe is controlled.

Drawings

Fig. 1 is a schematic structural diagram of the constant pressure cutting torch of the present invention.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Fig. 3 is a sectional view taken along line B-B of fig. 1.

Fig. 4 is a top view of the cutting nozzle of the present invention.

Fig. 5 is a schematic structural diagram of the cutting torch body according to the present invention.

In the figure, 100, a cutting torch body; 110. cutting the oxygen tube; 120. preheating an oxygen pipe; 130. a gas pipe; 140. a first valve chamber; 141. a first valve spool; 142. pressing a key; 143. a gasket; 150. a handle; 151. a connecting portion; 152. a handle portion; 160. a return spring; 170. a second valve cavity; 171. a second valve core; 172. a first adjusting hand wheel; 180. a third valve cavity; 181. a third valve core; 182. a second adjusting hand wheel; 200. a connector; 300. cutting a nozzle; 310. a first hole; 320. a second hole; 330. a third aperture; 400. an oxygen connector; 500. a gas joint.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Furthermore, the descriptions in the present application as to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

As shown in fig. 1-5, an isobaric cutting torch includes: a cutting torch body 100 and a connector 200, wherein the connector 200 is detachably connected with a cutting nozzle 300 for discharging fire.

Wherein, the cutting torch body 100 is connected with the cutting oxygen pipe 110, the preheating oxygen pipe 120 and the gas pipe 130 from top to bottom in sequence, the cutting oxygen pipe 110, the preheating oxygen pipe 120 and the gas pipe 130 are arranged in parallel, and in the actual manufacturing process, the cutting oxygen pipe 110 and the gas pipe 130 have a slightly larger diameter than the preheating oxygen pipe 120.

Wherein, connector 200 detachably is connected with cutting torch 300, cutting oxygen pipe 110 preheat oxygen pipe 120 and gas pipe 130 all with connector 200 is connected, cutting torch 300 is from last to having set gradually first hole 310, second hole 320 and third hole 330 down, cutting oxygen pipe 110 with first hole 310 intercommunication, preheat oxygen pipe 120 with second hole 320 intercommunication, gas pipe 130 with third hole 330 intercommunication.

Specifically, the cutting tip 300 has three top surfaces from top to bottom, the first hole 310, the second hole 320 and the third hole 330 are sequentially located on the three top surfaces of the cutting tip 300, the number of the first hole 310, the second hole 320 and the third hole 330 is not limited specifically, and may be one, or may be at least two, and when the number of the first hole 310, the second hole 320 or the third hole 330 is at least two, the holes are respectively arranged circumferentially around the cutting tip 300.

In this embodiment, the cutting oxygen pipe 110, the preheating oxygen pipe 120, and the gas pipe 130, which are sequentially arranged from top to bottom, have low requirements for manufacturing the cutting tip 300, and the cutting tip 300 is not required to be specially perforated at a designated position of the cutting torch, and each pipe body and each hole can be respectively communicated only by connecting the cutting tip 300 to the connector 200, and the cutting oxygen pipe 110 and the preheating oxygen pipe 120 are located above the gas pipe 130, and the tempering phenomenon is not easily generated.

It should be noted here that the cutting oxygen pipe 110 is generally a high pressure pipe, and thus the occurrence of the backfire phenomenon can be prevented to the maximum extent by disposing the cutting oxygen pipe 110 at the uppermost position.

As shown in fig. 1 and 5, in addition to the above embodiments, the cutting torch further includes an oxygen connector 400 and a gas connector 500, wherein the oxygen connector 400 and the gas connector 500 are both connected to the cutting torch body 100, the cutting oxygen pipe 110 and the preheating oxygen pipe 120 are both communicated with the oxygen connector 400, and the gas pipe 130 is communicated with the gas connector 500.

In the present embodiment, the cutting oxygen pipe 110 and the preheating oxygen pipe 120 are both communicated with the oxygen joint 400, the oxygen joint 400 can provide oxygen for the cutting oxygen pipe 110 and the preheating oxygen pipe 120, the gas pipe 130 is communicated with the gas joint 500, and the gas joint 500 can provide gas for the gas pipe 130.

As shown in fig. 1 and 5, in addition to the above embodiments, the torch body 100 is provided with a first valve cavity 140 and a first valve core 141, the cutting oxygen pipe 110, the first valve cavity 140 and the oxygen connector 400 are integrally communicated, the first valve core 141 is disposed in the first valve cavity 140 and can seal an inlet of the first valve cavity 140, and the first valve core 141 penetrates through a wall surface of the first valve cavity 140 and is formed with a lifting block which is convenient to lift.

In this embodiment, lifting the lifting block controls the first valve core 141 to open the inlet of the first valve cavity 140, and oxygen in the oxygen supply connector 400 continuously moves toward the cutting oxygen pipe 110 through the first valve cavity 140, thereby controlling whether oxygen is continuously supplied into the cutting oxygen pipe 110.

As shown in fig. 1 and 5, in addition to the above-mentioned embodiments, the torch body 100 is hinged to a handle 150, one end of the handle 150 is formed with a connecting portion 151 connected to the pulling block in an interlocking manner, the other end of the handle 150 is formed with a handle portion 152, and the hinge point between the handle 150 and the torch body 100 is located between the connecting portion 151 and the handle portion 152.

Specifically, the connection between the connection portion 151 and the lifting block may be an articulated connection or a fixed connection, as long as the linkage connection between the handle 150 and the lifting block through the connection portion 151 can be realized, and the handle portion 152 is actually a structure of the handle 150 that extends from the end of the handle 150 and facilitates the user to hold the handle.

In this embodiment, the hinge point between the handle 150 and the torch body 100 is located between the connecting portion 151 and the handle portion 152, so that the lifting block can be lifted by pressing the handle portion 152, and in a specific operation, the first valve cavity 140 can be continuously opened by pressing the handle portion 152 with the thumb by holding the torch body 100 with a hand.

As shown in fig. 1 and 5, in addition to the above embodiment, the first valve chamber 140 is provided with a return spring 160, two ends of the return spring 160 are respectively connected to the torch body 100 and the first valve core 141 in an abutting manner, and the return spring 160 pushes the first valve core 141 to seal the inlet of the first valve chamber 140.

In the present embodiment, both ends of the return spring 160 are respectively abutted against the torch body 100 and the first valve body 141, and the return spring 160 pushes the first valve body 141 to block the inlet of the first valve chamber 140, thereby performing a function of automatically returning the first valve body 141, and making the first valve chamber 140 in a closed state in a normal state.

As shown in fig. 1 and 5, in addition to the above embodiments, the first valve element 141 is provided with a sealing gasket 143, and the first valve element 141 can be connected with the torch body 100 in an interference manner through the sealing gasket 143.

In this embodiment, when the return spring 160 pushes the first valve body 141 to block the inlet of the first valve cavity 140, the first valve body 141 can be abutted against the torch body 100 through the gasket 143, so that the first valve cavity 140 can be well sealed, and gas can be prevented from leaking from a gap between the first valve body 141 and the torch body 100.

As shown in fig. 1 and 2, in addition to the above embodiments, the torch body 100 is provided with a second valve chamber 170 and a second valve core 171, the preheating oxygen pipe 120, the second valve chamber 170 and the oxygen connector 400 are integrally communicated, the second valve core 171 is disposed in the second valve chamber 170 and can seal an inlet of the second valve chamber 170, and the second valve core 171 is connected with a first adjusting handwheel 172.

Specifically, the cutting torch body 100 is provided with a first external thread, the first adjusting handwheel 172 is provided with a first internal thread matched with the first external thread, and the first adjusting handwheel 172 is in threaded connection with the cutting torch body 100 through the first external thread and the first internal thread.

In this embodiment, the first adjusting handwheel 172 is screwed to control the second valve core 171 to block the inlet of the second valve cavity 170, so as to prevent the oxygen in the oxygen connector 400 from continuously moving toward the pre-oxygen pipe 120, thereby controlling whether the oxygen is continuously provided in the pre-oxygen pipe 120.

As shown in fig. 1 and 3, in addition to the above-described embodiments, the torch body 100 is provided with a third valve chamber 180 and a third valve core 181, the gas pipe 130, the third valve chamber 180 and the gas joint 500 are integrally communicated, the third valve core 181 is provided in the third valve chamber 180 and can seal an inlet of the third valve chamber 180, and a second adjusting hand wheel 182 is connected to the third valve core 181.

Specifically, the cutting torch body 100 is provided with a second external thread, the second adjusting handwheel 182 is provided with a second internal thread adapted to the second external thread, and the second adjusting handwheel 182 is in threaded connection with the cutting torch body 100 through the second external thread and the second internal thread.

In this embodiment, the second adjusting handwheel 182 is screwed to control the third valve core 181 to block the inlet of the third valve cavity 180, so as to prevent the gas in the gas joint 500 from continuously moving toward the gas pipe 130, thereby controlling whether the gas is continuously provided in the gas pipe 130.

Claims

1. An isostatic torch, comprising:

the cutting torch body is sequentially connected with a cutting oxygen pipe, a preheating oxygen pipe and a gas pipe;

the connector, its detachably is connected with cuts the mouth, the cutting oxygen pipe preheat the oxygen pipe and the gas pipe all with the connector is connected, cut and chew that first hole, second hole and third hole have been set gradually, the cutting oxygen pipe with first hole intercommunication, preheat the oxygen pipe with second hole intercommunication, the gas pipe with third hole intercommunication.

2. The isopressure torch of claim 1 wherein: the cutting torch is characterized by further comprising an oxygen joint and a gas joint, wherein the oxygen joint and the gas joint are both connected with the cutting torch body, the cutting oxygen pipe and the preheating oxygen pipe are both communicated with the oxygen joint, and the gas pipe is communicated with the gas joint.

3. The isopressure torch of claim 2 wherein: the cutting torch body is provided with a first valve cavity and a first valve core, the cutting oxygen pipe, the first valve cavity and the oxygen connector are integrally communicated, the first valve core is arranged in the first valve cavity and can block an inlet of the first valve cavity, and the first valve core penetrates through the wall surface of the first valve cavity and is provided with a lifting block convenient to lift.

4. The isopressure torch of claim 3 wherein: the cutting torch body is hinged to a handle, a connecting portion connected with the lifting block in a linkage mode is formed at one end of the handle, a handle portion is formed at the other end of the handle, and a hinge point of the handle and the cutting torch body is located between the connecting portion and the handle portion.

5. The isopressure torch of claim 4 wherein: the first valve cavity is provided with a return spring, two ends of the return spring are respectively connected with the cutting torch body and the first valve core in an abutting mode, and the return spring pushes the first valve core to block an inlet of the first valve cavity.

6. The isopressure torch of claim 5 wherein: the first valve core is provided with a sealing gasket, and the first valve core can be in abutting connection with the cutting torch body through the sealing gasket.

7. The isopressure torch of claim 3 wherein: the cutting torch body is provided with a second valve cavity and a second valve core, the preheating oxygen pipe, the second valve cavity and the oxygen connector are integrally communicated, the second valve core is arranged in the second valve cavity and can block an inlet of the second valve cavity, and the second valve core is connected with a first adjusting hand wheel.

8. The isopressure torch of claim 7 wherein: the cutting torch body is provided with a third valve cavity and a third valve core, the gas pipe, the third valve cavity and the gas joint are integrally communicated, the third valve core is arranged in the third valve cavity and can seal an inlet of the third valve cavity, and the third valve core is connected with a second adjusting hand wheel.