CN217253525U - Metal arc power-free combustion rod - Google Patents

Abstract

The utility model discloses a metal arc does not have power supply burning rod, including oxygen cylinder, gas pressure reducer, rifle head and metal arc burning rod, the oxygen cylinder connects gradually through the pipeline gas pressure reducer with the rifle head, the other end of rifle head is used for the centre gripping metal arc burning rod, the end of metal arc burning rod is equipped with gunpowder coating. The utility model provides a metal arc does not have power burning rod can enough ignite under the condition that has the power, also can ignite to utilizing ignition equipment such as lighters in the condition of power failure.

Description

Metal arc power-free combustion rod

Technical Field

The utility model relates to a burning stick technical field, in particular to metal arc does not have power burning stick.

Background

The combustion rod can be used as a metal cutter, is widely used in various rescue occasions, and is an essential tool in modern fire rescue and forcible entry work. Conventional cutters, such as oxy-acetylene cutters, toothless saw cutters, gasoline cutters, hydraulic cutting pliers, and the like, have limited cutting capabilities and cannot be removed timely and effectively when facing high-strength metal obstacles. In patent No. CN201520294921.3, a portable metal arc cutter is provided, but the metal arc burning rod thereof cannot be used in case of power failure, and therefore, a metal arc non-power burning rod capable of igniting even in case of power failure is desired.

Disclosure of Invention

To the above-mentioned prior art, the utility model provides a metal arc does not have power burning rod can enough ignite under the condition that has the power, also can ignite to utilizing ignition equipment such as lighters in the condition of power failure.

The technical scheme of the utility model is realized like this:

the metal arc power-free combustion rod comprises an oxygen cylinder, a gas pressure reducer, a gun head and a metal arc combustion rod, wherein the oxygen cylinder is sequentially connected with the gas pressure reducer and the gun head through a pipeline, the other end of the gun head is used for clamping the metal arc combustion rod, and the tail end of the metal arc combustion rod is provided with a gunpowder coating.

Furthermore, the metal arc combustion rod comprises a hollow shell, a plurality of oxygen input tubes and a plurality of solid fuel rods, the oxygen input tubes and the solid fuel rods are arranged in the hollow shell, the solid fuel rods are located between the oxygen input tubes, and the oxygen input tubes are communicated with the oxygen channel of the gun head.

Further, gas pressure reducer includes inner tube, outer tube, spring, piston, connecting rod and valve, the inner tube cup joints in the outer tube, be equipped with between outer tube and the inner tube spring and piston, the spring is used for promoting the piston is to being close to the direction motion of valve, the piston passes through the connecting rod drives the valve is opened or is closed, the one end of outer tube is equipped with the atmospheric first gas pocket of intercommunication, and the other end is equipped with the intercommunication the second gas pocket of inner tube, the both ends of outer tube are equipped with sealed lid, and one of them sealed lid is equipped with and is used for passing the spout of connecting rod, spout play is connected with and covers the sealed cowling of the control knob of connecting rod and valve.

Furthermore, a third air hole is formed in the position, between the valve and the sealing cover, of the inner pipe, and the third air hole is communicated with the sealing cover.

Furthermore, the valve comprises a control knob, a screw rod and a valve core, wherein the control knob is rotatably connected with the inner pipe, the valve core is slidably connected with the inner pipe, the control knob is provided with a threaded hole, the valve core is provided with the screw rod in threaded connection with the threaded hole, the control knob is provided with a first gear, and the connecting rod is provided with a first rack meshed with the first gear.

Furthermore, the inner ring of the piston is connected with a first telescopic pipe, the outer ring of the piston is connected with a second telescopic pipe, the other end of the first telescopic pipe is connected with the inner pipe, and the other end of the second telescopic pipe is connected with the outer pipe.

Furthermore, one end of the spring is connected with a sliding block, the sliding block is provided with a conical wheel, a second gear and a second rack, the conical wheel is fixedly connected with the second gear, the second gear is meshed with the second rack, the second rack is in sliding connection with the sliding block, one end of the second rack is fixedly connected with the piston, the inner tube is provided with an inclined rail, and the conical wheel is attached to the inclined rail and keeps friction continuously; and in the process that the spring releases elastic potential energy, the contact position of the conical wheel and the inclined rail moves from one end with a small diameter to one end with a large diameter.

Furthermore, the cone-shaped wheel is provided with a plurality of grooves, and the inclined rail is provided with a plurality of bulges matched with the grooves.

The beneficial effects of the utility model reside in that: the utility model discloses cut the back of rubbing with the piece of cutting on the ignition polar plate of power with metal arc burning rod, reuse power ignites, consequently the utility model discloses not only can ignite the use on the power, can also use the naked light to ignite the operation under the circumstances that the power broke down or can't use the power. In addition, the combustion rod can still be ignited by a power supply in water, so that the combustion rod can be used under various conditions, and the rescue time is shortened.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.

Fig. 1 is a schematic structural view of a metal arc power-free combustion rod according to embodiment 1 of the present invention;

FIG. 2 is a cross-sectional view of a metal arc combustion bar according to example 1 of the present invention;

fig. 3 is a schematic structural view of a gas pressure reducer according to embodiment 2 of the present invention;

fig. 4 is a schematic structural view of a gas pressure reducer according to embodiment 3 of the present invention;

fig. 5 is a top view of the cone pulley and the inclined rail according to embodiment 3 of the present invention;

fig. 6 is a perspective view of the cone pulley and the inclined rail in the embodiment 3 of the present invention;

in the figure, 1 oxygen cylinder, 2 gas pressure reducer, 3 gun head, 4 metal arc burning rod, 5 gunpowder coating, 6 hollow shell, 7 oxygen conveying pipe, 8 solid fuel rod, 9 inner pipe, 10 outer pipe, 11 spring, 12 piston, 13 connecting rod, 14 valve, 15 first air hole, 16 second air hole, 17 sealing cover, 18 sliding groove, 19 sealing cover, 20 third air hole, 21 control knob, 22 screw rod, 23 valve core, 24 threaded hole, 25 first gear, 26 first rack, 27 first telescopic pipe, 28 second telescopic pipe, 29 sliding block, 30 conical wheel, 31 second gear, 32 second rack, 33 inclined rail, 34 groove and 35 protrusion.

Detailed Description

In order to better understand the technical content of the present invention, the following embodiments are provided, and the present invention is further described with reference to the accompanying drawings.

Example 1

Referring to fig. 1-2, the metal arc power-free combustion rod comprises an oxygen cylinder 1, a gas pressure reducer 2, a gun head 3 and a metal arc combustion rod 4, wherein the oxygen cylinder 1 is sequentially connected with the gas pressure reducer 2 and the gun head 3 through a pipeline, the other end of the gun head 3 is used for clamping the metal arc combustion rod 4, and a gunpowder coating 5 is arranged at the tail end of the metal arc combustion rod 4. Oxygen is stored in the oxygen cylinder 1 and is sequentially communicated with the gas pressure reducer 2 and the gun head 3 through a pipeline, and the gun head 3 clamps the metal arc combustion rod 4. Oxygen in the oxygen cylinder 1 is sprayed out after passing through the gas pressure reducer 2, the gun head 3 and the metal arc combustion rod 4, the gunpowder coating 5 is arranged at the tail end of the metal arc combustion rod 4, and the gunpowder coating 5 is ignited by ignition equipment such as a lighter during welding, so that the metal arc combustion rod 4 is ignited. The utility model discloses cut the back of rubbing with the piece of cutting on the ignition polar plate of power with metal arc burning rod 4, reuse power ignites, consequently the utility model discloses not only can ignite the use on the power, can also use naked light to ignite the operation under the circumstances that the power broke down or can't use power. In addition, the combustion rod can still be used for power ignition in water, so that the combustion rod can be used under various conditions, and the rescue time is shortened.

Specifically, the metal arc combustion rod 4 comprises a hollow shell 6, a plurality of oxygen transfer tubes 7 and a plurality of solid fuel rods 8, the oxygen transfer tubes 7 and the solid fuel rods 8 are arranged in the hollow shell 6, the solid fuel rods 8 are located between the oxygen transfer tubes 7, and the oxygen transfer tubes 7 are communicated with an oxygen channel of the gun head 3. The hollow shell 6 protects the oxygen duct 7 and the solid combustion rod. In the combustion process, the oxygen conveying pipe 7 is arranged around the solid combustion rod, oxygen discharged from the oxygen conveying pipe 7 can be directly absorbed by the solid combustion rod, and the initial combustion is more stable.

Example 2

Referring to fig. 3, the present embodiment is different from embodiment 1 in that the gas pressure reducer 2 includes an inner pipe 9, an outer pipe 10, a spring 11, a piston 12, a connecting rod 13 and a valve 14, the inner tube 9 is sleeved in the outer tube 10, the spring 11 and the piston 12 are arranged between the outer tube 10 and the inner tube 9, the spring 11 is used for pushing the piston 12 to move towards the direction close to the valve 14, the piston 12 drives the valve 14 to open or close through the connecting rod 13, one end of the outer tube 10 is provided with a first air hole 15 communicated with the atmosphere, the other end of the outer tube is provided with a second air hole 16 communicated with the inner tube 9, two ends of the outer tube 10 are provided with sealing covers 17, one of the sealing caps 17 is provided with a sliding slot 18 for passing through the connecting rod 13, the sliding slot 18 having a sealing cap 19 connected thereto which covers the connecting rod 13 and a control knob 21 of the valve 14.

A passage through which oxygen flows is formed in the inner tube 9. The inner tube 9 cup joints in the outer tube 10, forms the air cavity that can save oxygen between inner tube 9 and the outer tube 10, has set up spring 11 and piston 12 in the air cavity, and piston 12 divides the air cavity into two parts about, and wherein the left part is through first gas pocket 15 and external atmosphere intercommunication, and the right part is through second gas pocket 16 and inner tube 9 intercommunication, and the atmospheric pressure in the air cavity right part is the same with the atmospheric pressure in the inner tube 9. The spring 11 is used for pushing the piston 12 to move towards the direction close to the valve 14, and the piston 12 drives the valve 14 to open or close through the connecting rod 13. When the air pressure in the inner tube 9 is too high, the piston 12 will move to the left, so as to drive the valve 14 to close gradually through the connecting rod 13, reduce the oxygen entering the inner tube 9, and at the moment, the air pressure in the inner tube 9 decreases gradually; when the air pressure in the inner tube 9 is too small, the piston 12 will move to the right, so that the valve 14 is driven by the connecting rod 13 to open gradually, the amount of oxygen entering the inner tube 9 is increased, and the air pressure in the inner tube 9 is increased gradually. Meanwhile, due to the action of the valve 14, the gas pressure reducer 2 can automatically open and close the valve 14 along with the change of the gas pressure of the oxygen cylinder 1, so that the gas pressure reducer 2 can keep the gas pressure of the inner tube 9 in a relatively stable low-pressure state. While the gas pressure is gradually reduced with the consumption of the oxygen cylinder 1 during the combustion of the metal arc combustion rod 4, the flame of the metal arc combustion rod 4 can be kept stable by the gas pressure reducer 2. Sealing caps 17 are provided at both ends of the outer tube 10 so that the air chamber of the right portion can be isolated from the outside. Wherein, a sliding groove 18 for passing through the connecting rod 13 is arranged on the sealing cover 17 close to the valve 14, and a sealing cover 19 for covering the connecting rod 13 and a control knob 21 of the valve 14 is connected at the sliding groove 18. Under the effect of sealed cowling 19, avoid oxygen to leak out from spout 18, can promote the atmospheric pressure in the intracavity stable promptly, can also practice thrift the oxygen resource, prevent the emergence of accident.

Specifically, the inner tube 9 is provided with a third air hole 20 at a position between the valve 14 and the sealing cover 17, and the third air hole 20 is communicated with the sealing cover 19. When the valve 14 is not tightly connected to the inner tube 9 and air leakage occurs, air can flow into the inner tube 9 from the third air hole 20, so that the air pressure change of the right part of the air cavity caused by the air leakage is reduced, and the air pressure of the right part of the air cavity is closer to the air pressure of the inner tube 9.

Specifically, the valve 14 includes a control knob 21, a screw 22 and a valve core 23, the control knob 21 is rotatably connected to the inner tube 9, the valve core 23 is slidably connected to the inner tube 9, the control knob 21 is provided with a threaded hole 24, the valve core 23 is provided with the screw 22 in threaded connection with the threaded hole 24, the control knob 21 is provided with a first gear 25, and the connecting rod 13 is provided with a first rack 26 engaged with the first gear 25. During the process of the left and right movement of the connecting rod 13, the first rack 26 fixed on the connecting rod 13 drives the first gear 25 to rotate, and the first gear 25 is fixedly connected with the control knob 21, so that the control knob 21 is driven to rotate when the connecting rod 13 moves left and right. The valve core 23 is connected with the inner pipe 9 in a sliding way, the valve core 23 can move relative to the inner pipe 9 in the radial direction, and the gas flow passage cross section of the inner pipe 9 is adjusted in the moving process. When the control knob 21 rotates, the threaded hole 24 and the screw 22 are matched with each other through threads, so that the control knob 21 rotates to drive the valve core 23 to move along the radial direction of the inner tube 9, thereby adjusting the diameter of the air flow channel of the inner tube 9 and controlling the air inflow of oxygen. The valve core 23 can be driven to move by the rotation of the control knob 21, but the control knob 21 cannot be driven to rotate by the movement of the valve core 23, so that the valve core 23 is prevented from being pushed to move when the pressure of oxygen in the gas cylinder is high, and the control stability is improved. The valve core 23 can only slide along the radial direction of the inner tube 9, and there is a pressure difference between the two sides of the valve core 23, so that the valve core 23 is subjected to gas pressure in the left-right direction, but the gas pressure is perpendicular to the moving direction of the valve core 23, thereby avoiding the problems that the valve core 23 is pushed open when the oxygen cylinder 1 is at atmospheric pressure, and the valve core 23 is difficult to close the gas flow channel of the inner tube 9 when the oxygen cylinder 1 is at atmospheric pressure.

Specifically, the inner ring of the piston 12 is connected to a first telescopic tube 27, the outer ring of the piston 12 is connected to a second telescopic tube 28, the other end of the first telescopic tube 27 is connected to the inner tube 9, and the other end of the second telescopic tube 28 is connected to the outer tube 10. The first bellows 27 and the second bellows 28 can be bellows, or tubes made of flexible material, or tubes made of rubber material. The first extension pipe and the second extension pipe 28 seal the inner ring and the outer ring of the piston 12, prevent gas from leaking from the inner ring and the outer ring of the piston 12, improve the gas tightness, and simultaneously enable the piston 12 to be in clearance fit with the inner pipe 9 and the outer pipe 10, thereby reducing the sliding friction force.

Example 3

Referring to fig. 4 to 6, the present embodiment is different from embodiment 2 in that a slider 29 is connected to one end of the spring 11, the slider 29 is provided with a conical wheel 30, a second gear 31 and a second rack 32, the conical wheel 30 is fixedly connected to the second gear 31, the second gear 31 is engaged with the second rack 32, the second rack 32 is slidably connected to the slider 29, one end of the second rack 32 is fixedly connected to the piston 12, the inner tube 9 is provided with a ramp 33, and the conical wheel 30 is attached to the ramp 33 and continuously keeps friction; during the process of releasing the elastic potential energy of the spring 11, the contact position of the conical wheel 30 and the inclined rail 33 moves from one end with a small diameter to one end with a large diameter of the conical wheel 30. The spring 11 pushes the slide block 29 to move towards the piston 12, the conical wheel 30 on the slide block 29 is in contact with the inclined rail 33 fixed on the inner pipe 9, the conical wheel 30 is in diameter fit with the inclined rail 33, and friction force capable of preventing the conical wheel 30 from sliding relative to the inclined rail 33 exists. The force of the spring 11 pushing the slider 29 acts on the rotating shaft of the conical wheel 30, and as the conical wheel 30 and the inclined rail 33 rub against each other, a moment is generated to force the conical wheel 30 to roll, and the moment acts on the second gear 31 and pushes the second rack 32 to move through the second gear 31. In the process that the spring 11 releases elastic potential energy, the contact position of the conical wheel 30 and the inclined rail 33 moves from the end with the small diameter of the conical wheel 30 to the end with the large diameter of the conical wheel, the distance between the acting force of the spring 11 and the contact point of the conical wheel 30 and the inclined rail 33 is increased, the acting force of the spring 11 is increased on the moment arm of the conical wheel 30, the acting force of the spring 11 is reduced and the force arm is increased, and the acting force is offset mutually, so that the moment generated on the conical wheel 30 is unchanged. Therefore, in the process that the elastic force of the spring 11 is gradually reduced, the moment that the conical wheel 30 drives the second gear 31 to rotate is kept unchanged, so that the thrust force generated by the second gear 31 on the second rack 32 is kept unchanged, the pressure applied to the piston 12 in the process of moving is kept unchanged, the air pressure in the right part of the air cavity is always equal to the sum of the atmospheric pressure and the pressure generated by the second gear 31 acting on the piston 12, and the pressure in the right part of the air cavity is kept constant. Therefore, when the air pressure in the pressure reducer is too large, the piston 12 moves to the left to drive the valve 14 to reduce the air flow passage until the air pressure is equal to the preset value. When the air pressure in the pressure reducer is too small, the piston 12 will move to the right to drive the valve 14 to increase the air flow passage until the air pressure is equal to the preset value. The problem of unstable air pressure in the pressure reducer caused by different thrust generated by the spring 11 in different deformation amounts is greatly reduced.

Specifically, the cone wheel 30 is provided with a plurality of grooves 34, and the inclined rail 33 is provided with a plurality of protrusions 35 matched with the grooves 34. The friction force between the cone-shaped wheel 30 and the inclined rail 33 is improved, and the cone-shaped wheel 30 is prevented from slipping.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The metal arc power-free combustion rod is characterized by comprising an oxygen cylinder, a gas pressure reducer, a gun head and a metal arc combustion rod, wherein the oxygen cylinder is sequentially connected with the gas pressure reducer and the gun head through a pipeline, the other end of the gun head is used for clamping the metal arc combustion rod, and the tail end of the metal arc combustion rod is provided with a gunpowder coating.

2. The metal arc powerless combustion rod of claim 1, comprising a hollow housing, a plurality of oxygen tubes and a plurality of solid fuel rods, the oxygen tubes and the solid fuel rods being disposed within the hollow housing, the solid fuel rods being positioned between the oxygen tubes, the oxygen tubes being in communication with the oxygen channel of the torch head.

3. The metal arc power-free combustion rod as claimed in claim 1, wherein the gas pressure reducer comprises an inner tube, an outer tube, a spring, a piston, a connecting rod and a valve, the inner tube is sleeved in the outer tube, the spring and the piston are arranged between the outer tube and the inner tube, the spring is used for pushing the piston to move towards a direction close to the valve, the piston drives the valve to open or close through the connecting rod, one end of the outer tube is provided with a first air hole communicated with the atmosphere, the other end of the outer tube is provided with a second air hole communicated with the inner tube, two ends of the outer tube are provided with sealing covers, one sealing cover is provided with a sliding groove used for penetrating through the connecting rod, and a sealing cover connected with a control knob for covering the connecting rod and the valve is arranged at the sliding groove.

4. A metal arc powerless burner bar according to claim 3, wherein said inner tube has a third air hole located between said valve and said sealing cap, said third air hole communicating with said sealing cap.

5. A metal arc power-free burner bar as set forth in claim 3, wherein the valve comprises a control knob, a screw and a valve core, the control knob is rotatably connected with the inner tube, the valve core is slidably connected with the inner tube, the control knob is provided with a threaded hole, the valve core is provided with a screw threadedly connected with the threaded hole, the control knob is provided with a first gear, and the connecting rod is provided with a first rack engaged with the first gear.

6. A metal arc powerless burner wand according to claim 3, wherein said piston has an inner ring connected to a first telescoping tube and an outer ring connected to a second telescoping tube, the other end of said first telescoping tube being connected to said inner tube and the other end of said second telescoping tube being connected to said outer tube.

7. A metal arc power-free combustion rod as claimed in claim 3, wherein a slider is connected to one end of the spring, the slider is provided with a cone wheel, a second gear and a second rack, the cone wheel is fixedly connected with the second gear, the second gear is meshed with the second rack, the second rack is slidably connected with the slider, one end of the second rack is fixedly connected with the piston, the inner tube is provided with a ramp, and the cone wheel is attached to the ramp and continuously keeps friction; and in the process that the spring releases elastic potential energy, the contact position of the conical wheel and the inclined rail moves from one end with a small diameter to one end with a large diameter of the conical wheel.

8. A metal arc, powerless combustion rod according to claim 7, wherein said cone wheel is provided with a plurality of grooves and said ramp is provided with a plurality of protrusions engaging said grooves.

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