CN111840850B

CN111840850B - Single rescue device

Info

Publication number: CN111840850B
Application number: CN202010740812.5A
Authority: CN
Inventors: 何秋锦
Original assignee: Individual
Current assignee: Wuxi Ruifac Technology Co.,Ltd.
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2022-03-15
Anticipated expiration: 2040-07-29
Also published as: CN111840850A

Abstract

The invention relates to a single rescue device, which effectively solves the problem of low success rate of falling rescue; the technical scheme includes that the device comprises a vertical inner barrel and an outer barrel, the outer barrel is slidably sleeved on the inner barrel, a first pressure spring is installed between the upper end of the inner barrel and the upper end of the outer barrel, a horizontal annular groove is formed in the lower end of the inner wall of the outer barrel, an annular air bag is installed in the annular groove, a high-pressure air tank is fixed on the outer barrel and is communicated with the air bag through an air inlet pipe, a normally closed electromagnetic valve and an air inlet one-way valve are installed on the air inlet pipe, the normally closed electromagnetic valve is powered by a power supply, a button switch is installed at the lower end of the chute, the normally closed electromagnetic valve can be powered on and opened by pressing the button switch, and after the outer barrel is popped downwards, the air bag is inflated and expanded to hold the arm of a person to be saved; the invention can quickly and reliably grasp the arm of the rescued person, thereby avoiding the problem that the rescued person falls off due to hand fatigue and wet slip in the traditional rescue mode and effectively improving the success rate of rescue.

Description

Single rescue device

Technical Field

The invention relates to the field of fire-fighting lifesaving equipment, in particular to a single rescue device.

Background

In-process at the firefighter rescue twilight life personnel or drowned personnel, can often have such a condition, and the firefighter has already been grabbed by the rescuers ' arm, but because the desire of seeking survival by the rescuers is not strong, and in addition firefighter's arm strength and grip are limited, can't effectually be grabbed by the rescuers for a long time, if still there is the condition such as struggling not to cooperate by the rescuers, the firefighter wants to be can effectually rescue more difficult, causes the rescue success rate not high.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a single rescue device, which effectively solves the problem of low success rate of falling rescue.

The single rescue device comprises a vertical inner cylinder and an outer cylinder, wherein the outer cylinder is slidably sleeved on the inner cylinder, a first pressure spring is arranged between the upper end of the inner cylinder and the upper end of the outer cylinder and can push the outer cylinder to move downwards, an axial sliding groove is formed in the outer wall of the inner cylinder and is divided into an upper section and a lower section, the depth of the upper section is larger than that of the lower section, the lower end of the sliding groove is closed, a radial blind hole is formed in the upper end of the inner wall of the outer cylinder, a clamping block is arranged in the blind hole, an electromagnet is arranged at the bottom of the blind hole, a power supply for supplying power to the electromagnet is arranged on the outer wall of the outer cylinder, the electromagnet is connected with a first switch through a lead, the first switch can be fixed on a finger of a rescuer, and the first switch is pressed to enable the electromagnet to be electrified to generate suction to the clamping block; a second pressure spring is arranged between the fixture block and the electromagnet, and the inner end of the fixture block extends into the sliding groove under the action of the second pressure spring; the lower end of the inner wall of the outer cylinder is provided with a horizontal annular groove, an annular air bag is arranged in the annular groove, a high-pressure air tank is fixed on the outer cylinder and is communicated with the air bag through an air inlet pipe, a normally closed electromagnetic valve and an air inlet one-way valve are arranged on the air inlet pipe, the normally closed electromagnetic valve is powered by a power supply, a button switch is arranged at the lower end of the chute, the normally closed electromagnetic valve can be powered on and opened by pressing down the button switch, an exhaust pipe communicated with the air bag is arranged at the bottom of the annular groove, and a switch valve is arranged on the exhaust pipe; the upper end of the inner cylinder is connected with a fixing band which can be used for binding and fixing the device on the upper arm or the shoulder of the rescue worker.

The invention can quickly and reliably grasp the arm of the rescued person, thereby avoiding the problem that the rescued person falls off due to hand fatigue and wet slip in the traditional rescue mode and effectively improving the success rate of rescue.

Drawings

Fig. 1 is a front sectional view of the present invention in an initial state.

Fig. 2 is a front sectional view of the outer cartridge of the present invention after ejection.

FIG. 3 is a top cross-sectional view of the airbag position.

Fig. 4 is an enlarged view of the position a in fig. 1.

Fig. 5 is an enlarged view of the position B in fig. 1.

Fig. 6 is an enlarged view of the position C in fig. 2.

Detailed Description

The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.

As shown in fig. 1 to 6, the device comprises a vertical inner cylinder 1 and an outer cylinder 2, wherein the outer cylinder 2 is slidably sleeved on the inner cylinder 1, a first pressure spring 3 is arranged between the upper end of the inner cylinder 1 and the upper end of the outer cylinder 2, the first pressure spring 3 can push the outer cylinder 2 to move downwards, an axial sliding groove 4 is formed in the outer wall of the inner cylinder 1, the sliding groove 4 is divided into an upper section and a lower section, the depth of the upper section is larger than that of the lower section, the lower end of the sliding groove 4 is closed, a radial blind hole 5 is formed in the upper end of the inner wall of the outer cylinder 2, a clamping block 6 is arranged in the blind hole 5, an electromagnet 7 is arranged at the bottom of the blind hole 5, a power supply 8 for supplying power to the electromagnet 7 is arranged on the outer wall of the outer cylinder 2, the electromagnet 7 is connected with a first switch 9 through a wire, the first switch 9 can be fixed on a finger of a rescuer, and the first switch 9 is pressed to enable the electromagnet 7 to be electrified to generate suction to the clamping block 6; a second pressure spring 10 is arranged between the fixture block 6 and the electromagnet 7, and under the action of the second pressure spring 10, the inner end of the fixture block 6 extends into the chute 4; the lower end of the inner wall of the outer cylinder 2 is provided with a horizontal annular groove 11, an annular air bag 12 is arranged in the annular groove 11, a high-pressure air tank 13 is fixed on the outer cylinder 2, the high-pressure air tank 13 is communicated with the air bag 12 through an air inlet pipe 14, a normally closed electromagnetic valve 15 and an air inlet one-way valve 16 are arranged on the air inlet pipe 14, the normally closed electromagnetic valve 15 is powered by a power supply 8, the lower end of the chute 4 is provided with a button switch 17, the normally closed electromagnetic valve 15 can be powered on and opened by pressing down the button switch 17, the bottom of the annular groove 11 is provided with an exhaust pipe 18 communicated with the air bag 12, and the exhaust pipe 18 is provided with a switch valve 19; the upper end of the inner cylinder 1 is connected with a fixing belt 20, and the device can be bound and fixed on the upper arm or the shoulder of the rescue worker.

The device also comprises a second switch 21, the second switch 21 is connected with the electromagnet 7 through a lead, the second switch 21 is fixed at a position on the upper side of the shoulder of the rescuer and can be pressed by the chin, the current of the electromagnet 7 can be increased by pressing down the second switch 21, so that the suction force of the electromagnet 7 to the clamping block 6 is increased, the clamping block 6 is completely retracted into the blind hole 5, the outer barrel 2 can be separated from the inner barrel 1, when the rescued person is not matched to threaten the safety of the rescued person, the second switch 21 can be pressed down to give up rescue, and the phenomenon of greater casualties is avoided.

The lower end of the outer cylinder 2 is provided with a bell mouth 22, so that the outer cylinder 2 can be smoothly sleeved on the forearm of a rescuer when being popped downwards.

The switch valve 19 on the exhaust pipe 18 is hidden in the inner wall of the outer barrel 2, or must be opened by a tool such as a hexagonal wrench, and the switch valve 19 is prevented from being opened by rescuers intentionally in the rescue process.

The high-pressure air tanks 13 are provided with a plurality of air tanks, so that the instant inflation and expansion of the air bags can be ensured.

And a plurality of groups of sliding grooves 4 and second clamping blocks 6 are uniformly distributed on the circumference.

In an initial state, the outer cylinder 2 is completely sleeved on the inner cylinder 1, the first pressure spring 3 is in a compressed state, the fixture block 6 extends into the sliding groove 4 under the action of the second pressure spring 10, and the fixture block 6 blocks the lower end of the deeper upper half section of the sliding groove 4, so that the outer cylinder 2 moves downwards differently.

When the device is used for rescue, a rescuer sleeves the inner barrel 1 on the forearm, extends the hand out of the lower end of the inner barrel 1, fixes the device on the upper arm or the shoulder by using the fixing belt 20, ties the first switch 9 on the finger of the rescue hand, and fixes the second switch 21 on the shoulder at a position which can be pressed by the chin.

After the device is worn, a rescuer wears safety belts, safety ropes and other protective measures to reach a rescue position, grasps the hand of the rescued person by the hand wearing the device, the electromagnet 7 is electrified under the pressure of the first switch 9 on the fingers of the rescued person, the electromagnet 7 generates suction to the fixture block 6, so that the fixture block 6 moves to the bottom of the blind hole 5 for a certain distance under the action of the second pressure spring 10, the inner end of the fixture block 6 exits from the upper half section of the chute 4, the lower end of the upper half section of the chute 4 does not block the fixture block 6, the outer barrel 2 is downwards popped out and sleeved on the arm of the rescued person under the action of the first pressure spring 3, the fixture block 6 slides in the lower half section of the chute 4 until reaching the lower end of the chute 4, and the outer barrel 2 stops sliding; after the clamping block 6 slides to the lower end of the sliding groove 4, the button switch 17 at the lower end of the sliding groove 4 is pressed down, the normally closed electromagnetic valve 15 is powered on and opened, high-pressure gas in the high-pressure gas tank 13 enters the air bag 12 through the gas inlet pipe 14, the air bag 12 expands to hold the arm of a rescued person tightly, and therefore the rescued person is firmly grasped, and the stress point of the outer barrel 2 is located at the lower ends of the clamping block 6 and the sliding groove 4.

If the rescued person does not cooperate with the rescue to threaten the safety of the rescued person, the rescued person can press the second switch 21 on the shoulder with the chin in a biased way under the condition of completely losing the possibility of rescue, so that the current of the electromagnet 7 is increased, the suction force of the electromagnet 7 is increased, the clamping block 6 is completely withdrawn from the sliding groove 4, the outer barrel 2 is slipped from the inner barrel 1 after losing the acting point, and the rescued person is separated from the rescued person.

After rescue is finished, the device is taken down from the arm of a rescuer, the switch valve 19 on the exhaust pipe 18 is opened, high-pressure gas in the air bag 12 is exhausted, the air bag 12 is contracted into the annular groove 11, then the inner barrel 1 is pressed downwards, the first pressure spring 3 is compressed until the upper half section of the sliding groove 4 slides downwards to the position of the fixture block 6, and the fixture block 6 is popped out and clamped in the upper half section of the sliding groove 4 under the action of the second pressure spring 10; and finally, supplementing high-pressure gas into the high-pressure gas tank 13 to reach the calibrated pressure.

When the rescue device is used for rescuing, the arm of the rescued person can be fast and reliably grasped, so that the problem that the rescued person falls due to hand fatigue and wet slip in the traditional rescue mode is solved, the success rate of rescue can be effectively improved, meanwhile, the rescue device can be fast separated from the outer barrel 2 through the second switch 21, the threat of extreme conditions to the rescued person is avoided, and the life safety of the rescued person and the rescued person can be protected to the maximum extent.

Claims

1. The single rescue device is characterized by comprising a vertical inner barrel (1) and an outer barrel (2), wherein the outer barrel (2) is slidably sleeved on the inner barrel (1), a first pressure spring (3) is installed between the upper end of the inner barrel (1) and the upper end of the outer barrel (2), the first pressure spring (3) can push the outer barrel (2) to move downwards, an axial sliding groove (4) is formed in the outer wall of the inner barrel (1), the sliding groove (4) is divided into an upper section and a lower section, the depth of the upper section is larger than that of the lower section, the lower end of the sliding groove (4) is sealed, a radial blind hole (5) is formed in the upper end of the inner wall of the outer barrel (2), a clamping block (6) is installed in the blind hole (5), an electromagnet (7) is installed at the bottom of the blind hole (5), a power supply (8) for supplying power to the electromagnet (7) is installed on the outer wall of the outer barrel (2), the electromagnet (7) is connected with a first switch (9) through a lead, and the first switch (9) can be fixed on fingers of rescuers, the first switch (9) is pressed to enable the electromagnet (7) to be electrified to generate suction force on the clamping block (6); a second pressure spring (10) is arranged between the clamping block (6) and the electromagnet (7), and under the action of the second pressure spring (10), the inner end of the clamping block (6) extends into the sliding groove (4); the lower end of the inner wall of the outer cylinder (2) is provided with a horizontal annular groove (11), an annular air bag (12) is arranged in the annular groove (11), a high-pressure air tank (13) is fixed on the outer cylinder (2), the high-pressure air tank (13) is communicated with the air bag (12) through an air inlet pipe (14), the air inlet pipe (14) is provided with a normally closed electromagnetic valve (15) and an air inlet one-way valve (16), the normally closed electromagnetic valve (15) is powered by a power supply (8), the lower end of the chute (4) is provided with a button switch (17), the normally closed electromagnetic valve (15) can be powered on and switched on by pressing the button switch (17), the bottom of the annular groove (11) is provided with an exhaust pipe (18) communicated with the air bag (12), and the exhaust pipe (18) is provided with a switch valve (19); the upper end of the inner cylinder (1) is connected with a fixing belt (20) which can be bound and fixed on the upper arm or shoulder of the rescue worker;

in an initial state, the outer cylinder (2) is completely sleeved on the inner cylinder (1), the first pressure spring (3) is in a compressed state, the fixture block (6) extends into the sliding groove (4) under the action of the second pressure spring (10), and the fixture block (6) blocks the lower end of the deeper upper half section of the sliding groove (4), so that the outer cylinder (2) moves downwards differently;

during rescue, a rescuer grasps the hand of the rescued person by the hand wearing the device, the electromagnet (7) is electrified by pressing the first switch (9) on the fingers of the rescued person, the electromagnet (7) generates suction force on the fixture block (6) so that the fixture block (6) moves a distance to the bottom of the blind hole (5) under the action of the second pressure spring (10), the inner end of the fixture block (6) withdraws from the upper half section of the chute (4), the lower end of the upper half section of the chute (4) does not block the fixture block (6), under the action of the first pressure spring (3), the outer barrel (2) is downwards popped out and sleeved on the arm of the rescued person, the fixture block (6) slides in the lower half section of the chute (4) until reaching the lower end of the chute (4), and the outer barrel (2) stops sliding; the clamping block (6) slides down to the lower end of the sliding groove (4) and then presses down the button switch (17) at the lower end of the sliding groove (4), so that the normally closed electromagnetic valve (15) is powered on and opened, high-pressure gas in the high-pressure gas tank (13) enters the air bag (12) through the gas inlet pipe (14), the air bag (12) expands to hold the arm of a rescued person tightly, the rescued person is firmly grasped, and the stress point of the outer barrel (2) is arranged at the lower ends of the clamping block (6) and the sliding groove (4).

2. A single person rescue device as claimed in claim 1, further comprising a second switch (21), wherein the second switch (21) is connected with the electromagnet (7) through a conducting wire, the second switch (21) is fixed at a position where the upper side of the shoulder of the rescuers can be pressed by the chin, and the current of the electromagnet (7) can be increased by pressing the second switch (21), so that the attraction of the electromagnet (7) to the fixture block (6) is increased, and the fixture block (6) can be completely retracted into the blind hole (5), so that the outer cylinder (2) can be separated from the inner cylinder (1).

3. A single person rescue apparatus as claimed in claim 1, wherein the outer barrel (2) is fitted at its lower end with a bell mouth (22).

4. A single person rescue apparatus as claimed in claim 1, wherein the on-off valve (19) on the exhaust duct (18) is concealed in the inner wall of the outer barrel (2).

5. A single person rescue apparatus as claimed in claim 1, wherein the high pressure tank (13) is provided in plurality.

6. A single person rescue device according to claim 1, wherein a plurality of sets of the sliding grooves (4) and the second blocks (6) are evenly distributed on the circumference.