CN211186214U

CN211186214U - Safe buoyancy knapsack

Info

Publication number: CN211186214U
Application number: CN202020035872.2U
Authority: CN
Inventors: 舒东
Original assignee: Guangzhou Baideli Industrial Co ltd
Current assignee: Guangzhou Baideli Industrial Co ltd
Priority date: 2020-01-03
Filing date: 2020-01-08
Publication date: 2020-08-07
Anticipated expiration: 2030-01-08

Abstract

The utility model discloses a safe buoyancy knapsack includes the knapsack, has the holding chamber in the knapsack, is equipped with buoyant device on the knapsack, be equipped with on the knapsack with the communicating water inlet in holding chamber. Utilize the utility model discloses a safe buoyancy knapsack provides buoyancy to the human body after the human body falls into water, avoids the knapsack suppression human body simultaneously, has improved the security performance.

Description

Safe buoyancy knapsack

Technical Field

The utility model relates to a safe buoyancy backpack and a self-rescue method using the safe buoyancy backpack.

Background

The backpack or the schoolbag does not have much buoyancy, and if a user carries the schoolbag or the backpack and accidentally falls into water, the schoolbag or the backpack can not provide buoyancy, but can increase gravity, so that the user is more dangerous, and the user can not be rescued when going out and traveling in water. As a result, many buoyant backpacks now exist.

For example, in patent document 2019.11.26 issued as publication date No. 201920047793.0 in the chinese patent application, a drowning prevention backpack is disclosed, which comprises a backpack body, a handle and two straps, wherein the handle is fixedly connected to the top of the backpack body, the straps comprise a fixing part and an adjusting part, the fixing part and the adjusting part are connected by an adjusting buckle, the backpack further comprises a life saving board and a life saving airbag of a buoyancy lifting device, the life saving board is detachably connected to the back of the backpack body, and the straps are fixedly connected to the side of the life saving board away from the backpack body; the lifesaving air bag is fixed and filled in the hollow handle, the handle is provided with a notch for taking out the lifesaving air bag, and the lifesaving air bag is provided with an air tap; the lifesaving board comprises a base layer, a floating board and a silica gel pad, the silica gel pad is bonded on the side, close to the wrapping tape, of the floating board, and the base layer made of canvas wraps the outer portions of the floating board and the silica gel pad. The utility model discloses knapsack commonly used when will playing combines together with life saving board, lifesaving gasbag, utilizes the buoyancy of life saving board and lifesaving gasbag to hold the visitor, has effectively reduced the probability that the visitor was drowned when playing and dies, protects visitor's personal safety.

The patent document with the publication date 2018.6.8 granted by the chinese patent application number of 201721008502.4 discloses a multifunctional schoolbag with a communication function, which comprises a schoolbag body and shoulder straps arranged on one side of the schoolbag body, wherein a microcontroller, a power supply module, a wireless communication module and a positioning module are arranged in the schoolbag body, and the power supply module, the wireless communication module and the positioning module are connected with the microcontroller; the shoulder straps are provided with buttons, sound pick-up devices and loudspeakers; the button, the sound pickup and the loudspeaker are all connected with the microcontroller; the side wall of the schoolbag body close to the shoulder straps is at least internally provided with a floating block so as to provide back supporting force during backpack and buoyancy during water falling; the floating block is a hard material with low density. The utility model discloses be equipped with wireless communication module, can carry out voice conversation in the schoolbag of carrying on the back to must the student need hold the mobile phone in addition and talk on one's call, liberated student's both hands, and the module of no communication imbeds in the schoolbag body, is difficult for losing. In addition, a positioning module is arranged to obtain a walking route of the student schoolbag in the process of going to school and going to school. The floating block is arranged in the schoolbag body, so that the back shaping effect can be achieved, the student can be prevented from walking in a humpback mode, and the floating block can play a role in buoyancy under the condition of falling into water, so that drowning can be prevented.

The patent document with the publication number of CN201109486Y entitled 2008.9.3 discloses a self-rescue knapsack on water, XPE (polyethylene chemical cross-linking foamed product) or L XPE (polyethylene electronic cross-linking foamed product) is arranged in the periphery and the inside of the knapsack, and buoyancy generated by the XPE or L XPE is utilized, so that people cannot feel sunken after falling into water, and the knapsack has a self-rescue function, simple structure and strong practicability.

Regardless of the above-mentioned schoolbag or backpack, although the user can generate a large buoyancy force to the schoolbag or backpack after falling into water, the user must carry the schoolbag or backpack on the body of the user to generate a buoyancy force to the human body and the schoolbag or backpack to prevent drowning, so that the human face tends to move towards the water surface or the water under the action of the buoyancy force after the water generates the buoyancy force to the schoolbag or backpack, and therefore, even if the human body floats through the schoolbag or the backpack, the human face can be immersed into the water, and the drowning phenomenon can be caused.

Disclosure of Invention

The utility model aims at providing a safe buoyancy knapsack. Utilize the utility model discloses a safe buoyancy knapsack provides buoyancy to the human body after the human body falls into water, avoids the knapsack suppression human body simultaneously, has improved the security performance.

In order to achieve the purpose, the safe buoyancy backpack comprises a backpack, wherein an accommodating cavity is formed in the backpack, a buoyancy device is arranged on the backpack, and a water inlet communicated with the accommodating cavity is formed in the backpack.

The self-rescue method by utilizing the safe buoyancy backpack comprises the following steps: after a person carrying the backpack falls into water, the person is floated under the action of the buoyancy device, meanwhile, water sequentially enters the accommodating cavity through the water inlet, the gravity of the backpack is increased, and the backpack filled with the water generates backward-turning force on the human body to enable the head of the human body to leak out of the water surface.

Above-mentioned safe buoyancy knapsack and utilize buoyancy knapsack to save oneself, after the human body that has the knapsack on the back fell into the aquatic, float the human body through buoyancy device, water enters into the holding intracavity from the water inlet simultaneously, let the weight of knapsack increase gradually, the knapsack through getting into water makes the human body lean on backward, let the face of human body float above the surface of water, realize human normal breathing, the synergy of the buoyancy that produces through buoyancy device and the gravity of the production of watering, the technical problem that current buoyancy knapsack can float its human body but can not guarantee face surface of leaking outward has been solved. Furthermore, the utility model discloses in, utilize the gravity that increases the knapsack to change human position, overcome among the prior art increase gravity and sink the drowned inertia thinking of assembly easily.

In addition, when a person falling into water leaves the water surface for saving or self-rescuing, the water in the accommodating cavity can be quickly discharged from the backpack body due to the water inlet, so that the weight of the backpack can be quickly lightened, and the self-rescuing chance of the person is increased.

Furthermore, the backpack comprises a backpack body and straps arranged on the backpack body, and the accommodating cavity is arranged in the backpack body; at least one of the rear panel, the bottom, the front panel and the side wall of the bag body is provided with a water inlet. In the structure, when the water inlet is arranged at the bottom or the back panel or the side wall of the bag body, the lower end of the bag body generally enters the water firstly after a human body falls into the water, so that the water can enter the bag body quickly, the time for pressing the head of the bag body is shortened, and the face of the human body leaks out of the water as soon as possible.

Furthermore, a breathable net is arranged on the outer wall of the bag body at the water inlet. Through setting up ventilative net, on the one hand can let the human body carry on the back behind the knapsack air permeability good, improves the comfort level, and on the other hand, when intaking, ventilative net not only can not influence into water, can play filterable effect moreover.

Further, the buoyancy device is low-density non-water-absorbing material filled in the backpack. Through setting up the not absorbent material of low density, can provide extra buoyancy for the knapsack, let the human body float to can effectually avoid drowned incident.

Further, the low-density non-absorbent material is a low-density expandable polyethylene material with the thickness of 1-4 cm. The density of the low-density non-water-absorbing material is generally between 0.02 and 0.025 g/cubic centimeter, and the filling material is 6000-9000 cubic centimeter, so that 6 to 9 kilograms of buoyancy can be generated, the weight of the filling material minus 120-225 g can be almost ignored, and the density of the human body and the water are almost between 1.01 and 1.05, so that the weight of the object in the backpack is added to 70 kilograms of people, the people can safely float on the water surface only by 6.5 kilograms of buoyancy, the filling area of the backpack close to the body part can be about 3000 square centimeters, and the low-density non-water-absorbing material with the thickness of 1 to 4 centimeters can generate 6 to 12 kilograms of buoyancy to ensure the safety requirement of the people.

Further, a 1-3 cm-thick low-density non-absorbent material is filled in a backpack interlayer, a 1-2 cm-thick low-density non-absorbent material is filled in a back panel, a 1-2 cm-thick low-density non-absorbent material is filled in a backpack side wall, a 1-3 cm-thick low-density non-absorbent material is filled in a backpack cover head, a 1-3 cm-thick low-density non-absorbent material is filled in the backpack bottom, and a 1-3 cm-thick low-density non-absorbent material is filled in a backpack spine protection block. The low-density non-water-absorbing material is arranged at each position of the backpack, so that the uniform buoyancy generated by water to the backpack can be realized, and the safety performance is improved.

Furthermore, a buoyancy brick made of low-density non-water-absorbing material and 5-15 cm thick is arranged below the backpack cover. Through setting up the buoyancy brick, then can increase the buoyancy of human head, let human head spill the surface of water more easily, further improved the security performance.

Furthermore, a chest belt is arranged between the back belts. This structure, through setting up the waistband, then can let the reliable back of the body of knapsack attach on the human body, simultaneously, can produce certain space between the lower extreme of knapsack and human body, lets human lower part can not follow the knapsack and float in the twinkling of an eye.

Further, the buoyancy device is an inflatable air bag arranged in or on the backpack.

Drawings

Figure 1 is a perspective illustration of the securely buoyant backpack of example 1.

Figure 2 is a side schematic view of the buoyant backpack of example 1.

Figure 3 is a schematic view of the rear of the embodiment 1 safe buoyancy backpack.

Figure 4 is a schematic side view of the embodiment 1 secure buoyant backpack with one side removed.

Figure 5 is a schematic view of the underside of the buoyant backpack of example 1.

Fig. 6 is a schematic diagram of a prior art human body falling into water.

Fig. 7 is a schematic diagram of a process after a human body falls into water in the prior art.

Fig. 8 is a schematic diagram of a prior art human body falling into water.

Fig. 9 is a schematic view of the instant when the human body falls into water.

Fig. 10 is a schematic view of the present invention showing a process after a human body falls into water.

Fig. 11 is a schematic view of the utility model showing the human body leaning backwards after falling into water.

Figure 12 is a perspective illustration of the securely buoyant backpack of example 2.

Figure 13 is a side schematic view of the safe buoyancy backpack of example 2.

Figure 14 is a schematic view of the rear of the embodiment 2 secure buoyant backpack.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Example 1.

As shown in fig. 1 to 3, the safe buoyancy backpack comprises a backpack 1 and a buoyancy device.

As shown in fig. 1 to 3, the backpack 1 includes a bag body 11, a head 12, a back strap 13, and a chest strap 14. As shown in fig. 4, a containing cavity 111 for placing articles is arranged in the bag body 11; as shown in fig. 1 to 3, the cap 12 is disposed on the top of the bag body 11 and is located at the upper end of the accommodating cavity 111; the back belt 13 is connected to the bag body 11, and in the embodiment, two back belts 13 are arranged; the chest strap shown comprises a strap body 141 and a buckle 142, wherein two strap bodies 141 are provided, one strap body 141 is arranged on one of the straps 13, the other strap body 141 is arranged on the other strap 13, the buckle 142 comprises a male buckle 1421 and a female buckle 1422, the male buckle 1421 is arranged on one strap body 141, and the female buckle 1422 is arranged on the other strap body 141.

Interlayers are respectively arranged in the bag body 11, the cover head 12 and the braces 13.

The buoyancy device is a low-density non-absorbent material filled in the interlayer, in this embodiment, the low-density non-absorbent material is a low-density expandable polyethylene material, and the thickness of the low-density expandable polyethylene material is 1-4 cm. In this embodiment, the interlayer of the strap 13 is filled with a low-density non-absorbent material with a thickness of 1-3 cm, the back panel of the bag body 11 is filled with a low-density non-absorbent material with a thickness of 1-2 cm, the side wall of the bag body 11 is filled with a low-density non-absorbent material with a thickness of 1-2 cm, the cap 12 is filled with a low-density non-absorbent material with a thickness of 1-3 cm, the bottom of the bag body 11 is filled with a low-density non-absorbent material with a thickness of 1-3 cm, and the spine protection block 15 of the backpack is filled with a low-density non-absorbent material with a thickness of 1-3 cm.

As shown in figure 4, in order to increase the buoyancy of the head of the human body, so that the head of the human body can more easily leak out of the water surface and further improve the safety performance, a buoyancy brick 21 made of a low-density non-absorbent material and 5-15 cm thick is arranged below the cover head 12.

As shown in fig. 1 to 5, at least one of the rear, bottom, front and side walls of the bag body is provided with a water inlet 31 communicated with the accommodating cavity 111. The water inlets 31 can be formed in the rear panel, the bottom, the front panel or the side wall, the water inlets 31 can be formed in any two positions of the rear panel, the bottom, the front panel and the side wall, the water inlets can be formed in any deletion of the rear panel, the bottom, the front panel and the side wall, and the water inlets 31 can be formed in all the rear panel, the bottom, the front panel and the side wall.

In order to improve the air permeability and the filtering performance, the bottom of the bag body can be provided with an air permeable net 32 or the back of the back panel is provided with the air permeable net 32, and the water inlet is positioned at the inner side of the air permeable net.

The self-rescue method by utilizing the safe buoyancy backpack comprises the following steps: after a person carrying the backpack falls into the water, the person is floated under the action of the buoyancy device, meanwhile, the water sequentially enters the accommodating cavity 111 through the water inlet 31, the gravity of the backpack is increased, and the backpack filled with the water generates backward-turning force on the human body to enable the head of the human body to leak out of the water surface.

The density of the low-density expandable polyethylene material is generally between 0.02 and 0.025 g/cubic centimeter, and the filling is 6000-9000 cubic centimeter, so that 6 to 9 kilograms of buoyancy can be generated, the weight of the filling material is reduced by 120-225 g, which can be almost ignored, and the density of the human body and the water are almost between 1.01 and 1.05, so that 70 kilograms of people plus the weight of the articles in the backpack, the people can safely float on the water surface only by 6.5 kilograms of buoyancy, the filling area of the backpack close to the body part can be about 3000 square centimeters, and the low-density non-water-absorbing material with the thickness of 1 to 4 centimeters can generate 6 to 12 kilograms of buoyancy, which is enough to ensure the safety requirement of people.

In the prior art, as shown in fig. 6 to 8, because the backpack is attached to the human body, and the backpack is internally provided with the buoyancy device, under the action of the buoyancy force F of water, the human body can gradually face downwards under the pressure of the backpack in the process shown in fig. 6 to 8, and the face is probably immersed below the horizontal plane a, so that the self-rescue function cannot be realized even if the human body is floated.

In the embodiment, as shown in fig. 9, after the human body 100 carrying the backpack falls into the water 200, the human body is floated by the buoyancy device under the buoyancy F of the water, at the moment when the human body falls into the water, as shown in fig. 10, although the human body slightly leans forward, after the water enters the accommodating cavity 111 from the water inlet along with the water, as shown in fig. 11, the weight of the backpack is gradually increased, the human body is forced to lean backward by the backpack entering the water, the face of the human body floats above the water surface, so that the normal breathing of the human body is realized, and the technical problem that the existing buoyancy backpack can float the human body but cannot ensure the face of the human body to leak out of the water surface due to the synergistic effect of the buoyancy generated by the buoyancy device and the gravity generated by water filling is solved. Furthermore, the utility model discloses in, utilize the gravity that increases the knapsack to change human position, overcome among the prior art increase gravity and sink the drowned inertia thinking of assembly easily. Through setting up the waistband, then can let the reliable back of the bag attach on the human body, simultaneously, can produce certain space between the lower extreme of knapsack and human body, let human lower part can not follow the knapsack and float in the twinkling of an eye.

Example 2.

As shown in fig. 12 to 14, the safe buoyancy backpack comprises a backpack 1 and a buoyancy device.

As shown in fig. 1 to 3, the backpack 1 includes a bag body 11, a head 12, a back strap 13, and a chest strap 14. As shown in fig. 13, a containing cavity 111 for placing articles is arranged in the bag body 11; as shown in fig. 12 to 14, the cap 12 is disposed on the top of the bag body 11 and is located at the upper end of the accommodating cavity 111; the back belt 13 is connected to the bag body 11, and in the embodiment, two back belts 13 are arranged; the chest strap shown comprises a strap body 141 and a buckle 142, wherein two strap bodies 141 are provided, one strap body 141 is arranged on one of the straps 13, the other strap body 141 is arranged on the other strap 13, the buckle 142 comprises a male buckle 1421 and a female buckle 1422, the male buckle 1421 is arranged on one strap body 141, and the female buckle 1422 is arranged on the other strap body 141.

The buoyancy device is an inflatable airbag, and the inflatable airbag is arranged in the interlayer or a partial cavity of the accommodating cavity, as shown in fig. 12, the inflatable airbag 300 may be inflated before falling into water, and may be inflated at the moment of falling into water to provide buoyancy.

At least one of the rear panel, the bottom, the front panel and the side wall of the bag body is provided with a water inlet 31 communicated with the containing cavity 111. The water inlets 31 can be formed in the rear panel, the bottom, the front panel or the side wall, the water inlets 31 can be formed in any two positions of the rear panel, the bottom, the front panel and the side wall, the water inlets can be formed in any deletion of the rear panel, the bottom, the front panel and the side wall, and the water inlets 31 can be formed in all the rear panel, the bottom, the front panel and the side wall.

In order to improve the air permeability and the filtering performance, an air permeable net (not shown) can be arranged at the bottom of the bag body or an air permeable net 32 can be arranged behind the rear panel, and the water inlet is positioned at the inner side of the air permeable net.

In the prior art, as shown in fig. 6 to 8, because the backpack is attached to the human body, and the backpack is internally provided with the buoyancy device, under the action of the buoyancy force F of water, the human body can be in the process shown in fig. 6 to 8, the face of the human body gradually faces downwards, and the face of the human body is probably immersed into the horizontal plane a, so that the human body can not be self-rescued even if floated.

Claims

1. A safe buoyancy knapsack, includes the knapsack, its characterized in that: the backpack is internally provided with an accommodating cavity, the backpack is provided with a buoyancy device, and the backpack is provided with a water inlet communicated with the accommodating cavity.

2. The securely buoyant backpack of claim 1, wherein: the backpack comprises a backpack body and straps arranged on the backpack body, and the accommodating cavity is arranged in the backpack body; at least one of the rear panel, the bottom, the front panel and the side wall of the bag body is provided with a water inlet.

3. The securely buoyant backpack of claim 2, wherein: a breathable net is arranged on the outer wall of the bag body at the water inlet.

4. The securely buoyant backpack of claim 1, wherein: the buoyancy device is made of low-density non-water-absorbing material filled in the backpack.

5. The securely buoyant backpack of claim 4, wherein: the low-density non-absorbent material is a low-density expandable polyethylene material with the thickness of 1-4 cm.

6. The securely buoyant backpack of claim 4, wherein: the backpack comprises a backpack, wherein a backpack interlayer is filled with a low-density non-absorbent material with the thickness of 1-3 cm, a back panel is filled with the low-density non-absorbent material with the thickness of 1-2 cm, a side wall of the backpack is filled with the low-density non-absorbent material with the thickness of 1-2 cm, a cover head of the backpack is filled with the low-density non-absorbent material with the thickness of 1-3 cm, the bottom of the backpack is filled with the low-density non-absorbent material with the thickness of 1-3 cm, and a spine protecting block of the backpack is filled with the low-density non-absorbent material with the thickness of 1-3 cm.

7. The securely buoyant backpack of claim 4, wherein: a buoyancy brick made of low-density non-water-absorbing material and 5-15 cm thick is arranged below the backpack cover.

8. The securely buoyant backpack of claim 2, wherein: a chest belt is arranged between the back belts.

9. The securely buoyant backpack of claim 1, wherein: the buoyancy device is an inflatable air bag arranged in or on the backpack.