CN202675291U

CN202675291U - Cutting torch

Info

Publication number: CN202675291U
Application number: CN 201220113361
Authority: CN
Inventors: 李会民; 徐磊
Original assignee: TSINGTAO METAL INJECTION MOLDING Co
Current assignee: TSINGTAO METAL INJECTION MOLDING Co
Priority date: 2012-03-23
Filing date: 2012-03-23
Publication date: 2013-01-16
Anticipated expiration: 2022-03-23

Abstract

The utility model relates to a cutting torch capable of cutting metal and belongs to the frame cutting tool field. The cutting torch comprises a central pipe and a shell, wherein the central pipe is inserted into the shell to assemble, a wing platform is arranged on the outer wall of the central pipe, and an oxygen channel is arranged inside the central pipe. A sinking groove and a rib platform are arranged on the inner wall of the shell. After the central pipe is inserted into the shell, the wing platform and the sinking groove are matched, the rib platform on the inner wall of the shell is contacted and located with the central pipe, and radically locates the central pipe and the shell. After the central pipe is inserted into the shell, a fuel channel is formed between the outer wall of the central pipe and the inner wall of the shell. A fuel nozzle is formed at the head end where the fuel channel is closed to the cutting torch. The cutting torch removes a thread connecting structure, integrates parts of the cutting torch into the central pipe and the shell, reduces production complexity, and enables the parts to be matched easily. After the nozzle is blocked by slag, the cutting torch is convenient to separate and remove, the cutting torch can be used continuously, and the parts can be independently replaced after the parts are damaged, so that cost is reduced.

Description

A kind of cutting torch

Technical field

The utility model relates to the saw that cuts of cutting metal and uses cutting torch, belongs to Flame-cutter tool field.

Background technology

The gas flame cutting technique is widely used in the Metal Cutting field of all kinds of manufacturing industry and other industry, the equipment that uses is cutting torch, cutting torch is the vitals of cutting torch, performance impact to whole cutting torch is most important, traditional cutting torch generally is comprised of cutting torch core print seat, cutting nozzle core, cutting torch overcoat three parts, adopts threaded engagement to connect between three parts.Typical as now widely used is jet absorption type welding torch, China formulated and has implemented relevant standard (the GB GB5110-85 of this product in 1985, Machinery Ministry standard JBT6969-1993), until now, most of manufacturing enterprise is still the production of carrying out the cutting torch goods according to this standard.The tradition cutting torch generally adopts the way of machining to produce, and pass through tens of procedures such as car, brill, tapping, and material is generally selected brass and red copper, and final cutting torch product three part assemblies tighten together, and is difficult for mounting or dismounting.Cutting torch in use, the slag ratio is easier to stop up spout, traditional cutting torch is not easy to assemble, thereby can't molten slag removal, can only change cutting torch.

The utility model content

The purpose of this utility model is to solve the deficiencies in the prior art, and a kind of cutting torch of new structure is provided, and makes cutting torch be convenient to dismounting, easily inner slag is cleared up, and the cutting torch parts can be changed separately during simultaneously cutting torch infringement, have reduced use cost.

The technical solution adopted in the utility model is: a kind of cutting torch is comprised of central tube and shell; Central tube inserts shell and assembles; The central tube outer wall is provided with wing platform, and inside is provided with oxygen channel; Outer casing inner wall is provided with deep gouge and muscle platform; After central tube inserted shell, wing platform and deep gouge matched; The internal diameter of the muscle platform of outer casing inner wall and the external diameter of center core pipe are consistent, and after central tube inserted shell, the muscle platform of outer casing inner wall contacted the location with central tube, and central tube and shell are carried out radial location; Central tube forms blast tube between central tube outer wall and the outer casing inner wall after inserting shell; Blast tube is at the head end formation combustion gas spout of cutting torch near the muscle platform, and combustion gas sprays from the combustion gas spout.

The quantity of wing platform is two or more, is symmetricly set on the central tube outer wall; Deep gouge quantity in the shell is corresponding with wing number of units amount, and quantity is consistent; The axial mating surface of wing platform and the corresponding axial mating surface of shell inner groove adopt taper fit when cooperating each other, and tapering is at 0.5 °～80 °.

The shape of wing platform has square, trapezoidal, arc, and the deep gouge shape in the shell is corresponding with wing platform shape, and shape is consistent.

The quantity of muscle platform is two or more in the shell, is symmetricly set in the inwall of shell.

Cutting torch of the present utility model has been removed screw connection structure, all parts simplification of cutting torch are integrated into central tube and shell, reduced the complexity of producing, make between each parts cooperate more easy, the spout slag can be installed and removed rear removing to cutting torch after stopping up easily, and cutting torch can reuse, also can change separately after the component damage, reduce use cost.

The more streaming of blast tube of the center oxygen channel of cutting torch of the present utility model and annular is given vent to anger more unobstructed, improves gas flow rate, thereby cutting speed is improved.

Be provided with muscle platform structure in the shell of the present utility model, guaranteed the concentricity of shell and inside center pipe from structure, solved the easy inconsistent problem of mouth core and overcoat center in traditional cutting torch.

Description of drawings

Fig. 1 is the sectional structure chart of cutting torch of the present utility model;

Fig. 2 is the central tube sectional structure chart of cutting torch of the present utility model;

Fig. 3 is the shell section structure chart of cutting torch of the present utility model;

Among the figure: 1, central tube; 2, wing platform; 3, oxygen channel; 3a, oxygen channel conical section; 3b, oxygen channel parallel-segment; 4, shell; 5, deep gouge; 6, muscle platform; 7, blast tube; 8, combustion gas spout.

The specific embodiment

Below in conjunction with drawings and Examples cutting torch of the present utility model is described in detail and illustrates.

As shown in Figure 1, a kind of cutting torch is comprised of central tube 1 and shell 4; The outer wall of central tube 1 is provided with wing platform 2; Shell 4 inwalls are provided with deep gouge 5 and muscle platform 6; Central tube 1 inserts shell 4 and assembles, wherein the deep gouge 5 of the wing platform 2 of central tube and outer casing inner wall matches, central tube 1 and shell 4 are carried out axial location, the cooperation that contacts of the muscle platform 6 of outer casing inner wall and the core tube wall of central tube 1, central tube 1 and shell 4 are carried out radial location, guarantee the concentricity of central tube 1 and shell 4; Central tube 1 inside is provided with oxygen channel 3, and oxygen channel is divided into two sections of conical section 3a and cylindrical segment 3b; Consist of blast tube 7 between central tube 1 outer wall and shell 4 inwalls, blast tube 7 is at the head end formation combustion gas spout 8 of cutting torch near the muscle platform, and combustion gas is from 8 ejections of combustion gas spout.

The quantity of the wing platform on the present embodiment central tube is 2, and the quantity of outer casing inner wall deep gouge also is 2, and the quantity of outer casing inner wall muscle platform is 4.

The axial mating surface of central tube wing platform and the corresponding axial mating surface of shell inner groove adopt taper fit when cooperating each other, and tapering is at 0.5 °～80 °.

Claims

1. a cutting torch is characterized in that: be comprised of central tube and shell; Central tube inserts shell and assembles; The central tube outer wall is provided with wing platform, and inside is provided with oxygen channel; Outer casing inner wall is provided with deep gouge and muscle platform; After central tube inserted shell, wing platform and deep gouge matched, and the muscle platform of outer casing inner wall contacts the location with central tube, and central tube and shell are carried out radial location; Central tube forms blast tube between central tube outer wall and the outer casing inner wall after inserting shell; Blast tube is at the head end formation combustion gas spout of cutting torch near the muscle platform.

2. cutting torch according to claim 1 is characterized in that: the quantity of wing platform is two or more, is symmetricly set on the central tube outer wall; Deep gouge quantity in the shell is corresponding with wing number of units amount, and quantity is consistent.

3. cutting torch according to claim 1 is characterized in that: the quantity of muscle platform is two or more, is symmetricly set in the inwall of shell.

4. cutting torch according to claim 1, it is characterized in that: the shape of wing platform has square, trapezoidal, arc, and the deep gouge shape in the shell is corresponding with wing platform shape, and shape is consistent.

5. cutting torch according to claim 1, it is characterized in that: the oxygen channel of central tube inside is comprised of conical section and cylindrical segment two parts.