WO2003097170A1

WO2003097170A1 - Magnetically absorbed foam drill for automatically quenching oilcan fire

Info

Publication number: WO2003097170A1
Application number: PCT/CN2003/000266
Authority: WO
Inventors: Zhenguo Niu
Original assignee: Zhenguo Niu
Priority date: 2002-04-15
Filing date: 2003-04-14
Publication date: 2003-11-27
Also published as: CN2532930Y; AU2003236127A1

Abstract

A magnetically absorbed foam drill for automatically quenching oilcan fire, includes a frame which is provided with several suction pads at its front-end. A hollow drill rod which can axially move, is fitted at the central section of the frame. A broach is fixed at the front-end of the drill rod, the back-end of the drill rod is connected with a hollow communicating pipe. A big gear is fixed at the central section of the hollow drill rod, and is driven to rotate by an electrical machine. There is also an elastic thrust mechanism on the hollow drill rod which can push the drill rod to move axially. The fire unit according to present invention not only can economise water and achieve good quenching effect, but also have good maneuverability and is easy for carrying. Meanwhile, the device can automatically be absorbed on the oilcan, automatically connect the oilcan with outer pipe, and can be remotely controlled, being operated conveniently and safely.

Description

Technical field:

The invention relates to an oil tank fire extinguishing device for saving, rescuing, and transporting and withdrawing oil products when a fuel tank fire occurs, and in particular to a magnetically absorbing type oil tank automatic emergency fire extinguishing foam hammer drill gun.

Background technique:

In the prior art, there are many deficiencies in the fire extinguishing devices of oil tanks. When a large oil tank fires, the fixed or semi-fixed fire extinguishing device is usually used to extinguish the fire, but the fixed or semi-fixed device is easy to be damaged. If these devices are destroyed, mobile fire extinguishing devices such as large vehicle-mounted foam cannons or foam cannon hook guns must be used to extinguish the fire. These devices have many disadvantages: For example, vehicle-mounted foam cannons are often not very effective due to the influence of terrain and range. Close to the target, and when a large oil tank fires, a strong updraft will be generated around it. It is often difficult for the sprayed foam to fall into the fire tank, which not only has a poor fire extinguishing effect, but also wastes water, especially in the absence of water. Fires often cannot be extinguished. In the event of a collapsing oil tank fire, the foam peg hook is ineffective. There are some improved solutions to the above prior art, such as the Chinese Utility Model Patent CN2208952 published on October 4, 1995, which discloses an oil tank fire extinguishing device. The device is equipped with a fire extinguishing ring on the top of the oil tank. A fire extinguisher is installed at the front end of the oil tank. The fire extinguisher and the fire extinguishing ring are connected through the fire extinguishing tube. When the oil tank is on fire, the fire extinguishing agent in the fire extinguisher can enter the spray ring through the fire extinguishing tube and spray out, so that the oil in the tank is isolated from the air. Purpose of fire extinguishing. The fire extinguishing device is generally used for small vehicle oil tanks, and is not suitable for large oil tanks, and the oil products in the tanks cannot be output. When a large oil tank fires, the process pipelines and valves are often severely damaged, making it impossible to withdraw oil from the oil tank. The damage caused by the fire.

Summary of the invention:

The purpose of the present invention is to overcome the shortcomings of the prior art described above, and provide a magnetically absorbing oil tank automatic emergency fire extinguishing foam drill gun applied to a steel oil tank. The fire extinguishing device not only saves water sources, but also can achieve better fire extinguishing effects. Moreover, the device has strong mobility and convenient handling. At the same time, the device can automatically adsorb on the oil tank, automatically connect the oil tank to the external pipeline, and can perform remote control, which is convenient and safe to operate.

The automatic adsorption fire extinguishing foam boring drill gun provided by a magnetic adsorption oil tank according to the present invention comprises a frame, and a plurality of magnetic suction cups are arranged at the front end of the frame; an axially movable hollow is installed in the middle of the frame. A drill rod, a drill bit is installed at a front end of the hollow drill rod, and a rear end communicates with a hollow communication pipe; a large gear is fixedly installed in the middle of the hollow drill rod, and the large gear is driven to rotate by a motor; The hollow drill rod is also provided with an elastic thrust mechanism which can push it forward in the axial direction.

The magnetically absorbing oil tank automatic rescue fire extinguishing boring drill gun provided according to the present invention also has the following auxiliary technical features:

In an embodiment of the present invention, the elastic propulsion mechanism is a thruster, and the thruster includes a hollow shaft sleeve fixed on the frame, and a nut is installed inside the hollow shaft sleeve. And a compression spring, the cross section of the hollow shaft sleeve matching the nut is a regular polygon, the internal thread of the nut is matched with the external thread of the hollow drill rod, and one end of the compression spring abuts against the nut On the end surface, the other end abuts on the frame.

In another implementation of the present invention, the elastic propulsion mechanism is a spring, one end of the spring abuts against a rear end surface of the large gear, and the other end abuts on the frame.

In an embodiment of the present invention, a power transmission shaft parallel to the hollow drill pipe is provided on the frame, and a spline is formed at one end of the power transmission shaft, and the spline is formed. A small gear meshing with the large gear is slidably installed on the upper side of the small gear, and clamping plates that cooperate with the clearance of the large gear are provided on both end surfaces of the small gear; another small gear is fixedly installed at the other end of the power transmission shaft The pinion gear meshes with a gear on an output shaft of the motor.

In another implementation of the present invention, a motor is mounted on the frame, a spline is formed on the output shaft of the motor, and a small gear meshing with the large gear is slidably mounted on the spline. The two end faces of the pinion gear are provided with clamping plates that cooperate with the gap of the large gear.

The frame includes two end plates that are substantially parallel to each other and are generally isosceles triangles. A support rod is provided at each corresponding vertex of the two end plates, and the magnetic sucker is fixed at the front end of the support rod. The hollow drill pipe is mounted on both end plates of the frame by means of a sliding sleeve, and the sliding sleeve is a copper sleeve.

A set of gaskets is installed at the front end of the hollow drill pipe, and a spring is arranged in the gasket; a valve is arranged at the rear end of the communication pipe, and a drill gun of this structure can be used to transport and withdraw oil.

A rear end of the communication tube is provided with a bubble generator and a quick interface.

A spring ejector mechanism is provided inside the drill bit. The spring ejector mechanism includes two support frames parallel to each other and a ejection rod passing through the two support frames, and the ejection rod is located between the two support frames. The middle part is sleeved with a spring and a baffle blocking the spring.

The drill bit is provided with a cooling and cooling hole.

Compared with the prior art, the magnetically absorbing oil tank automatic rescue fire extinguishing drill gun provided by the present invention has the following advantages:

1. Since the fire extinguishing agent can be input into the oil tank through the connecting pipe and the hollow drill pipe, that is, the fire is started from the flame core portion, the fire can be extinguished quickly and efficiently, and the fire extinguishing effect is good.

2. Since the drill gun is not restricted by terrain and range, it has strong mobility and easy handling.

3. Because the front of the drilling machine is equipped with a magnetic suction cup, the device can automatically absorb On the surface of the steel oil tank, after adsorption, the operator can evacuate and remotely control its automatic drilling through the electric wire and automatically connect the pipeline, so it is not only easy to operate, but also safer.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

2 is a right side view of the frame and the magnetic chuck in the embodiment shown in FIG. 1;

FIG. 3A is an enlarged sectional view of the thruster in the embodiment shown in FIG. 1, and FIG. 3B is a sectional view taken along A-A of FIG. 3A;

4 is a schematic structural diagram of another preferred embodiment of the present invention;

5 is a schematic structural diagram of still another preferred embodiment of the present invention, and the drill gun shown in the figure is used for fire extinguishing;

FIG. 6A is an enlarged cross-sectional view at B in FIG. 5, and FIG. 6B is a right side view of FIG. 6A.

detailed description:

Referring to FIG. 1, a magnetically absorbing oil tank automatic emergency fire extinguishing foam boring drill gun provided according to the present invention includes a frame 1, and the front end of the frame 1 is provided with a plurality of magnetic suction cups 2. See FIGS. 1 and 2, in In the embodiment given by the present invention, the rack 1 includes two end plates 11 that are substantially parallel to each other and are generally isosceles triangles. A support rod 12 is provided at each corresponding vertex of the two end plates 11. The suction cup 2 is fixed at the front end of the support rod 12, that is, three support rods 12 and three magnetic suction cups 2 are provided in total. The magnetic suction cup is distributed in an isosceles triangle, so that the drill gun has good stability during use. Can be firmly adsorbed on the oil tank.

As shown in FIG. 1, an axially movable hollow drill rod 3 is installed in the middle of the frame 1, and the hollow cobalt rod 3 is mounted on two end plates 11 on the frame 1 by means of a sliding sleeve 21. The sliding sleeve 21 is a copper sleeve; a drill bit 31 is installed at the front end of the hollow drill rod 3, and a hollow end The communication pipe 32 communicates with a valve 33 at the rear end of the communication pipe 32. The drill bit 31 is also a hollow body. When the drill bit 31 penetrates the tank wall of the oil tank, the oil tank passes through the drill 31 and the hollow The drill pipe 3 communicates with the communication pipe 32 automatically, and the oil in the tank can be output through the pipeline, and then output to the external container through the valve 33. A large gear 4 is fixedly mounted in the middle of the hollow drill rod 3, and the large gear 4 is driven to rotate by a motor. The hollow drill rod 3 is also provided with an elastic thrust mechanism 5 that can push it forward in the axial direction. Therefore, the hollow drill rod 3 and the large gear 4 are driven forward by the motor and pushed by the elastic thrust mechanism 5 while rotating, so as to quickly drill through the tank wall.

As a preferred embodiment of the present invention, referring to 1 and 3A and 3B, the elastic propulsion mechanism 5 is a thruster, and the thruster includes a hollow shaft sleeve 51 fixed on the frame 1, A nut 52 and a compression spring 53 are installed inside the hollow shaft sleeve 51. The cross section of the hollow shaft sleeve 51 and the nut 52 is a regular polygon, and the internal thread of the nut 52 and the external thread of the hollow drill rod 2 In cooperation, one end of the compression spring 53 abuts against the end surface of the nut 52, and the other end abuts against the frame 1. Due to the use of a propeller, it has a good propulsion effect.

As another preferred embodiment of the present invention, as shown in FIG. 4, the elastic pushing mechanism 5 is a spring. One end of the spring abuts against the rear end face of the large gear 4, and the other end abuts against On the rack 1. This solution has a simple structure and low cost.

In the two above-mentioned preferred embodiments, the transmission mechanism between the motor and the large gear is: The frame 1 is provided with a power transmission shaft 6 parallel to the hollow drill rod 3, and the power transmission shaft 6 A spline is formed on one end of the spline, and a small gear 61 meshing with the large gear 4 is slidably mounted on the spline, and two end plates of the small gear 61 are provided with clamping plates 41 that cooperate with the clearance of the large gear 4. The other end of the power transmission shaft 6 is fixedly mounted with another pinion 62 that meshes with a gear 71 on an output shaft of the motor 7. 1 and 4, the front end of the hollow drill pipe 2 is provided with a set of gaskets 22, and a spring 23 is provided in the gasket 22. During use, the gasket 22 is under the elastic force of the spring 23, Always keeping close to the outer surface of the oil tank can effectively prevent oil leakage. The drill gun is used to transport and withdraw oil.

As an alternative form of the above-mentioned transmission mechanism, referring to FIG. 5, a motor 7 is mounted on the frame 1, a spline is formed on an output shaft of the motor 7, and a spline is mounted on the spline in a sliding manner. The pinion gear 61 meshed by the gear 4 is provided with clamping plates 41 that are fitted with the large gear 4 on both end faces of the pinion gear 61. As shown in the figure, in this embodiment, the rear of the communication pipe 32 The end is provided with a bubble generator 34 and a fast interface 35. The drill is used for fire fighting.

In the above-mentioned embodiments given by the present invention, a spring ejector mechanism 8 is provided inside the drill bit 31. Referring to FIGS. 6A and 6B, the spring ejector mechanism 8 includes two support frames 81 parallel to each other, and A spring 82 and a baffle 84 for blocking the spring 83 are passed through a part 82 of the two support frames 81 between the two support frames 8'1. During use, the ejector rod 82 can push the entire drill cuttings into the oil tank under the elastic force of the spring 83 to prevent the pipeline from being blocked because the drill cuttings enter the drill bit 31 or the hollow drill rod 3.

As shown in FIGS. 5 and 6A, the drill bit 31 is provided with a cooling and cooling hole 33. During use, a fire extinguishing agent can be sprayed through the cooling and cooling hole 33 to cool the magnetic chuck 2.

As described above: In the present invention, the drill and valve shown in Figs. 1 and 4 can be replaced with the drill and bubble generator and fast interface shown in Fig. 5 to realize one machine and two uses.

Claims

Claim

1. A magnetic suction type oil tank automatic emergency fire extinguishing foam boring drill gun, characterized by: comprising a frame (1), and a plurality of magnetic suction cups (2) are provided at the front end of the frame (1); frame

(1) the middle part is provided with an axially movable hollow drill rod (3), a drill bit (31) is installed at a front end of the hollow drill rod (3), and a rear end is communicated with a hollow communication pipe (32); A large gear (4) is fixedly mounted in the middle of the hollow drill pipe (3), and the large gear (4) is driven to rotate by a motor, and the hollow drill pipe (3) is also provided with a shaft that can push it in the axial direction. Front-moving elastic thrust mechanism (5).

2. The magnetically-assisted oil tank automatic emergency fire extinguishing foam boring drill gun according to claim 1, characterized in that: the elastic propulsion mechanism (5) is a propeller, and the propeller includes a fixed to the machine A hollow shaft sleeve (51) on the frame (1), a nut (52) and a compression spring (53) are installed inside the hollow shaft sleeve (51), the hollow shaft sleeve (51) and the nut (52) The mating cross section is a regular polygon, and the internal thread of the nut (52) and the hollow drill pipe

(2) the external threads are matched, one end of the compression spring (53) abuts on the end face of the nut (52), and the other end abuts on the frame (1).

3. The automatic rescue fire extinguishing foam boring drill gun for a magnetic adsorption oil tank according to claim 1, characterized in that: the elastic propulsion mechanism (5) is a spring, and one end of the spring abuts against the large gear. (4) of the rear end face, the other end abuts against the frame (1).

4. The magnetically absorbing type oil tank automatic emergency fire extinguishing foam boring drill gun according to claim 1, characterized in that: the frame (1) is provided with a power transmission shaft parallel to the hollow drill rod (3) (6) A spline is formed at one end of the power transmission shaft (6), and a small gear (61) meshing with the large gear (4) is slidably mounted on the spline, and the small gear (61) Clamping plates (41) are provided on both end surfaces to cooperate with the large gear (4); the other end of the power transmission shaft (6) is fixed with another small gear (62), and the small gear (62) ) Mesh with the gear (71) on the output shaft of the motor (7). 5. The automatic rescue fire extinguishing foam boring drill gun for magnetic adsorption oil tank according to claim 1, characterized in that: a motor (7) is installed on the frame (1), and an output shaft of the motor (7) A spline is formed on the spline, and a small gear (61) that meshes with the large gear (4) is slidably mounted on the spline. The two ends of the small gear (61) are provided with the large gear (4). ) Clear-fit splint (41).

6. The magnetically absorbing oil tank automatic emergency fire extinguishing foam boring drill gun according to claim 1 or 2, characterized in that: the frame (1) includes two end plates (parallel isosceles triangles) that are parallel to each other ( 11), a support rod (12) is provided at each corresponding vertex of the two end plates (11), the magnetic sucker (2) is fixed at the front end of the support rod (12), and the hollow drill rod ( 2) Mounted on the two end plates (11) on the frame (1) by means of a sliding sleeve (21), the sliding sleeve

(21) is a copper sleeve.

7. The magnetically absorbing oil tank automatic rescue fire extinguishing foam boring drill gun according to claim 1 or 2 or 3, characterized in that: a set of gaskets (22) are installed at the front end of the hollow drill rod (2), and A spring (23) is provided in the gasket (22); a valve (33) is installed at the rear end of the communication pipe (32).

8. The automatic rescue fire extinguishing foam boring drill gun with magnetic adsorption type oil tank according to claim 1 or 2 or 3, characterized in that: a bubble generating unit (34) and A fast interface (35).

9. The magnetically absorbing oil tank automatic rescue fire extinguishing foam boring drill gun according to claim 1 or 2 or 3, characterized in that: a spring ejector mechanism (8) is provided inside the drill bit (31), The spring ejector mechanism (8) includes two support frames (81) parallel to each other and an ejection rod (82) passing through the two support frames (81). The ejection rod (82) is located on the two support frames. A spring (83) and a baffle (84) blocking the spring (83) are sleeved between the portions (81).

10. The automatic rescue fire extinguishing foam boring drill gun for a magnetic adsorption oil tank according to claim 1 or 2 or 3, characterized in that: the drill bit (31) is provided with a cooling and cooling hole (36).