CN210114157U

CN210114157U - Air suspension shock attenuation knapsack

Info

Publication number: CN210114157U
Application number: CN201920778226.2U
Authority: CN
Inventors: 冷品逸; 王瑜昕; 蒋义; 万建新; 陈轶凡; 喻长江; 徐松
Original assignee: Nanjing Zhiku Xingbao Intelligent Technology Co Ltd
Current assignee: Nanjing Zhiku Xingbao Intelligent Technology Co Ltd
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-02-28
Anticipated expiration: 2029-05-28

Abstract

The utility model relates to an air suspension shock absorption backpack, which comprises a backpack body, a backpack frame and an air pressure buffer device; the backpack frame is fixedly provided with a guide rail, and the backpack body is provided with a sliding block which is matched with the guide rail and forms a moving pair; the air pressure buffer device comprises an air cylinder consisting of a cylinder barrel, a piston ring, a first piston and a first piston rod, and the first piston rod is parallel to the guide rail; one of the two components of the cylinder barrel and the first piston rod is fixedly connected with the backpack frame, and the other component is fixedly connected with the backpack body. The utility model discloses can reduce the useless acting that the knapsack fluctuates produced about the motion in-process by a wide margin, and then reduce people's physical stamina consumption, can alleviate the sensation of burden on back, neck, knee, ankle greatly when the people walks or runs, be applicable to sports such as hiking, training, travel better.

Description

Air suspension shock attenuation knapsack

Technical Field

The utility model relates to an air suspension shock attenuation knapsack belongs to portable knapsack technical field.

Background

The backpack plays an important role in daily life, is an important tool for carrying articles when people go out daily, and is required to be used for students to learn, go out and travel to outdoor exercises. However, when the load is heavy, the existing ergonomic backpack may still cause poor user experience and even health risks.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: the utility model provides a knapsack with good shock attenuation and buffering effect to can reduce user's physical stamina consumption and improve user's use experience.

In order to solve the technical problem, the utility model provides a technical scheme is: an air suspension shock absorption backpack comprises a backpack body, a backpack frame and an air pressure buffer device; the backpack frame is fixedly provided with a guide rail, and the backpack body is provided with a sliding block which is matched with the guide rail and forms a moving pair; the air pressure buffer device comprises an air cylinder consisting of a cylinder barrel, a piston ring, a first piston and a first piston rod, and the first piston rod is parallel to the guide rail; the cylinder barrel is fixedly connected with the backpack body, and the first piston rod is fixedly connected with the backpack frame, or the first piston rod is fixedly connected with the backpack body, and the cylinder barrel is fixedly connected with the backpack frame.

The utility model discloses the air suspension load technique that will be applied to on the shockproof system of car improves to creatively apply to on the knapsack, when the holding power of the first piston in the cylinder passes through air pressurization and load balance, with the help of the static inertia of knapsack, make the people when knapsack up-and-down motion, the power on this vertical plane is by fine buffering, and then play absorbing effect, can alleviate the back greatly when the people walks or runs, the neck, the knee, the sense of burden on the ankle, be applicable to on foot better, the training, motion such as travel. The backpack of the utility model has good shock absorption effect, so the backpack is also applied to the transportation of some dangerous goods and medical supplies. The utility model discloses have and carry advantages such as heavy, effectual, the durability of shock attenuation is strong, the operation is stable and the precision is high.

In order to improve the damping effect, the technical scheme is further improved as follows: the pneumatic buffer device also comprises a spring and a cylindrical pneumatic buffer container, wherein a second piston is arranged in the pneumatic buffer container; the second piston divides the air pressure buffer container into a pressure cavity and a buffer cavity, the pressure cavity of the air pressure buffer container is communicated with the two cylinder barrels through a pipeline, and two ends of the spring respectively abut against the end faces of the second piston and the buffer cavity. Furthermore, the second piston is fixedly connected with a second piston rod which extends towards the end face of the buffer cavity and extends out of the end face of the buffer cavity, and the spring is sleeved on the second piston rod. Therefore, in the process of up-and-down movement of the backpack, the air pressure buffer container can maximally and uniformly change the pressure in the air cylinder, and acting force is generated in the opposite direction of the backpack to be moved, so that the backpack is kept relatively static in the vertical direction, and the damping effect is improved.

The technical scheme is further improved as follows: the part of the second piston rod extending out of the end face of the buffer cavity is provided with a rack, a support is fixedly connected to the air pressure buffer container, and the support is provided with a gear matched with the rack and a generator driven by the gear. The generator can generate power output of about 5-36W according to different weights of the backpack, and the generated electric quantity can provide power for the air pump and also can provide energy for daily electronic products and the like.

Preferably, the cylinder is the double-end cylinder that is equipped with two first piston rods, stability when can improve first piston rod connection knapsack main part or knapsack frame.

Preferably, the guide rail is a side guide rail, and a plurality of balls matched with the sliding block are arranged on the side guide rail. The side guide rail has the advantages of small volume, strong pressure resistance, low resistance and the like.

Preferably, the backpack body is provided with a fitment pouch for containing a pneumatic cushion container.

Preferably, an inflation inlet is arranged on a connecting pipeline between the air pressure buffer container and the cylinder barrel, and a one-way valve is arranged at the inflation inlet. Further, the air pump driven by a power supply is further included, and an air outlet of the air pump is connected with the inflation inlet.

Preferably, the piston ring is made of polytetrafluoroethylene, has a self-lubricating function and is low in later maintenance cost.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is an exploded schematic view of fig. 1.

Fig. 3 is a schematic structural view of the backpack frame and the air pressure buffer device.

Fig. 4 is a schematic structural view of the pneumatic buffer container.

Reference numerals: the backpack comprises a backpack body 1, a backpack frame 2, an air pressure buffer device 3, a cylinder 11, a guide rail 12, a ball 13, an air pressure buffer container 14, a slide block 15, an accessory bag 16, a first piston rod 17, a pipeline 18, a shoulder strap 21, a buckle 22, a power supply 23, an air pump 24, a generator 30, a second piston 32, a spring 33, a second piston rod 34, a rack 35, a gear 36, a pressure cavity 37 and a buffer cavity 38.

Detailed Description

Examples

As shown in fig. 1 to 3, the backpack of the present embodiment includes a backpack body 1, a backpack frame 2, and a pneumatic cushion device 3, wherein the backpack body 1 is a bag-shaped object for accommodating articles, and the backpack frame 2 is provided with necessary accessories such as shoulder straps 21 and buckles 22.

The backpack frame 2 is fixedly provided with a guide rail 12, and the backpack body is provided with a slide block 15 which is matched with the guide rail 12 and forms a moving pair; the pneumatic buffer device comprises a cylinder consisting of a cylinder barrel 11, a piston ring, a first piston and a first piston rod 17, wherein the first piston rod 17 is parallel to the guide rail 12. The piston ring is preferably made of polytetrafluoroethylene, has a self-lubricating function and is low in later maintenance cost.

In the embodiment, the backpack frame 2, the guide rails, the sliding blocks, the air cylinders and the like are made of light aluminum alloy materials, so that the weight of the backpack is only increased by less than 800g compared with the weight of the backpack of the same type. The backpack body is connected with the back of a human body through the backpack frame, the backpack frame is designed by human engineering, a gap exists between the backpack frame and the human body, an airflow channel is formed, and the sultry experience generated by the direct contact of the back and the backpack can be reduced.

Compared with other similar technologies, the pneumatic device is simple and portable in structure, convenient to install and maintain, high in output speed, high in speed compared with hydraulic and electric modes and sensitive in response, and the general cylinder has good buffering performance and high adaptability to impact loads and overload loads.

The guide rail 12 is preferably a side guide rail, and a plurality of balls 13 matched with the sliding block 15 are arranged on the side guide rail. The side slide rail has the advantages of small volume, strong pressure resistance and low resistance, and the ball 13 can reduce the resistance of the guide rail and the slide block in the relative movement process and can play a certain guiding role.

The cylinder 11 and the first piston rod 17 have two arrangements, one of which is not shown: the cylinder barrel 11 is fixedly connected with the backpack frame 2, and the first piston rod 17 is fixedly connected with the backpack body 1; in a second arrangement mode, as shown in fig. 2 and 3, the cylinder 11 is fixed on the backpack body 1 by a buckle, and the first piston rod 17 is fixedly connected with the backpack frame 2. Preferably, the cylinder is a double-head cylinder provided with two first piston rods 17, and the two first piston rods 27 can be fixedly connected with the backpack body 1 or the backpack frame 2 according to the first setting mode or the second setting mode.

In addition, in order to facilitate the use and timely supplement the air in the air cylinder, an air charging port is arranged on the cylinder barrel 11, a one-way valve is arranged at the air charging port, the one-way valve can prevent compressed air from reversely flowing, and the air pump is protected and meanwhile air pressure is guaranteed. During inflation, an air pump 24 driven by a power supply 23 can be adopted, after the power supply 23 is powered on, the air pump 24 starts to work, compressed air enters a pipeline, passes through a one-way valve and then enters the cylinder 11 of the air cylinder, and then the buffering and shock absorption effects are achieved in the reciprocating motion process of the first piston. The user is when knapsack heavy burden walking or run, and the knapsack can produce the effort of vertical direction because inertial action, according to the volume of the compressed air in the knapsack weight adjustment cylinder for first piston holding power reaches a balance point.

Through inventor's multiple tests, the knapsack buffer stroke of this embodiment can reach 180mm, and impact force buffering effect obviously promotes, and the effect is more obvious when the people walks soon, runs, goes up the downhill grade.

The embodiment can be further modified as follows: 1) as shown in fig. 2-4, the pneumatic buffer device further comprises a spring 33 and a cylindrical pneumatic buffer container 14, wherein a second piston 32 is arranged in the pneumatic buffer container 14; the second piston 32 divides the air pressure buffer container 14 into a pressure chamber 37 and a buffer chamber 38, the pressure chamber 37 of the air pressure buffer container 14 is communicated with the cylinder 11 through the pipeline 18, and two ends of the spring 33 respectively abut against the end surfaces of the second piston 32 and the buffer chamber 38. Furthermore, the second piston 32 is fixedly connected with a second piston rod 34 extending towards and out of the end face of the buffer cavity 38, and the spring 33 is sleeved on the second piston rod 34. When the backpack moves up and down through the improvement, the air pressure buffer container 14 can automatically adjust the air pressure in the air cylinder, and an acting force is generated in the opposite direction of the backpack to move, so that the backpack is kept relatively static in the vertical direction, and the damping effect is improved.

2) As shown in fig. 4, a rack 35 is disposed on a portion of the second piston rod 34 extending out of an end surface of the buffer chamber 38, and a bracket (not shown) is fixedly connected to the pneumatic buffer container 14, and a gear 36 engaged with the rack 35 and a generator 30 driven by the gear 36 are disposed on the bracket. The electric power generated by the generator 30 can be stored in the storage device to provide power for the air pump, and can also provide energy for the illuminating lamp when walking at night, and the like.

3) The backpack body 1 is provided with an accessory pocket 16 for accommodating the air pressure buffer container 14, thereby facilitating the carrying of the air pressure buffer container 14.

The present invention is not limited to the specific technical solutions described in the above embodiments, and other embodiments can be provided in addition to the above embodiments. It should be understood by those skilled in the art that any modifications, equivalent substitutions, improvements and the like that are made within the spirit and principle of the present invention are within the scope of the present invention.

Claims

1. An air suspension shock attenuation knapsack which characterized in that: comprises a backpack body, a backpack frame and an air pressure buffer device; the backpack frame is fixedly provided with a guide rail, and the backpack body is provided with a sliding block which is matched with the guide rail and forms a moving pair; the air pressure buffer device comprises an air cylinder consisting of a cylinder barrel, a piston ring, a first piston and a first piston rod, and the first piston rod is parallel to the guide rail; the cylinder barrel is fixedly connected with the backpack body, and the first piston rod is fixedly connected with the backpack frame, or the first piston rod is fixedly connected with the backpack body, and the cylinder barrel is fixedly connected with the backpack frame.

2. The air suspension shock absorbing backpack of claim 1, wherein: the pneumatic buffer device also comprises a spring and a cylindrical pneumatic buffer container, wherein a second piston is arranged in the pneumatic buffer container; the second piston divides the air pressure buffer container into a pressure cavity and a buffer cavity, the pressure cavity of the air pressure buffer container is communicated with the cylinder barrel through a pipeline, and two ends of the spring are respectively abutted against the end faces of the second piston and the buffer cavity.

3. The air suspension shock absorbing backpack of claim 2, wherein: the second piston is fixedly connected with a second piston rod which extends towards the end face of the buffer cavity and extends out of the end face of the buffer cavity, and the spring is sleeved on the second piston rod.

4. The air suspension shock absorbing backpack of claim 3, wherein: the part of the second piston rod extending out of the end face of the buffer cavity is provided with a rack, a support is fixedly connected to the air pressure buffer container, and the support is provided with a gear matched with the rack and a generator driven by the gear.

5. The air suspension shock absorbing backpack of claim 1 or 2, wherein: the cylinder is a double-head cylinder provided with two first piston rods.

6. The air suspension shock absorbing backpack of claim 1 or 2, wherein: the guide rail adopts the side guide rail, be equipped with on the side guide rail with slider complex a plurality of balls.

7. The air suspension shock absorbing backpack of claim 1, wherein: the backpack body is provided with an accessory pocket for accommodating a pneumatic buffer container.

8. The air suspension shock absorbing backpack of claim 2, wherein: an inflation inlet is arranged on a connecting pipeline of the air pressure buffer container and the cylinder barrel, and a one-way valve is arranged at the inflation inlet.

9. The air suspension shock absorbing backpack of claim 8, wherein: the air pump is driven by a power supply, and an air outlet of the air pump is connected with the inflation inlet.

10. The air suspension shock absorbing backpack of claim 1, wherein: the piston ring is made of polytetrafluoroethylene.