CN209883343U - Shock-absorbing knapsack - Google Patents

Abstract

The utility model provides a shock attenuation knapsack, shock attenuation knapsack include knapsack body and two braces, and shock attenuation knapsack includes: the device comprises a first fixing frame, a first fixing seat, a first mandrel, a second fixing seat, a second mandrel, a first supporting device, a second fixing frame, a first extension spring, a first supporting spring, a second extension spring and a second supporting spring. When the people is when removing, the knapsack body is because of the weight effect moves down, first extension spring, second extension spring, first supporting spring and second supporting spring take place elastic deformation, thereby realize making first extension spring, second extension spring, first supporting spring and second supporting spring bear to shock attenuation knapsack effort, and then prevent the knapsack body when jolting from top to bottom, the effort that the knapsack body produced is used on the people, in order to avoid the injury to human backbone and shoulder, experience in order to improve the use of product.

Description

Shock-absorbing knapsack

Technical Field

The utility model relates to a knapsack technical field particularly, relates to a shock attenuation knapsack.

Background

At present, in the related art, when a person carries the backpack, the gravity of the backpack directly acts on the shoulders and the spine of the person, and when the person moves, the backpack jolts, so that the shoulders and the spine of the person are further injured, and the use experience of the product is reduced.

SUMMERY OF THE UTILITY MODEL

The present invention aims at least solving one of the technical problems existing in the prior art or the related art.

Therefore, the utility model provides a shock attenuation knapsack.

In view of this, the utility model provides a shock attenuation knapsack, shock attenuation knapsack include knapsack body and two braces, and shock attenuation knapsack includes: the device comprises a first fixing frame, a first fixing seat, a first mandrel, a second fixing seat, a second mandrel, a first supporting device, a second fixing frame, a first extension spring, a first supporting spring, a second extension spring and a second supporting spring; the two first fixing seats are fixed at two ends of the first fixing frame and are positioned at one side of the first fixing frame; the first mandrel penetrates through the two first fixing seats at the same time, and two ends of the first mandrel are fixed on the two first fixing seats; the two second fixed seats are fixed at two ends of the first fixed frame, and the second fixed seats are positioned at the other side of the first fixed frame; the second mandrel simultaneously penetrates through the two second fixed seats, and two ends of the second mandrel are fixed on the two second fixed seats; the first supporting device is sleeved on the outer side of the first mandrel; the second supporting device is sleeved on the outer side of the second mandrel; the second fixing frame is connected with the backpack body, and the first supporting device and the second supporting device are fixed on the second fixing frame; one end of the first extension spring is connected with a first fixed seat, and the other end of the first extension spring is connected with the first supporting device; one end of the first supporting spring is contacted with the other first fixed seat, and the other end of the first supporting spring is contacted with the first supporting device; one end of the second extension spring is connected with a second fixed seat, and the other end of the second extension spring is connected with the second supporting device; one end of the second supporting spring is contacted with the other second fixed seat, and the other end of the second supporting spring is contacted with the second supporting device; the first supporting device is in clearance fit with the first mandrel, and the second supporting device is in clearance fit with the second mandrel.

In the technical scheme, firstly, two first fixing seats are fixed at two ends of a first fixing frame, and the two first fixing seats are positioned at one side of the first fixing frame so as to improve the stability of the first fixing seats; secondly, the first mandrel penetrates through the two first fixing seats simultaneously, and two ends of the first mandrel are fixed on the two first fixing seats, so that the first mandrel is supported and fixed by the two first fixing seats, and the stability of the first mandrel is improved; thirdly, the two second fixing seats are fixed at two ends of the first fixing frame, and are positioned at the other side of the first fixing frame, so that the stability of the second fixing seats is improved; thirdly, the second mandrel simultaneously passes through the two second fixed seats, and the two ends of the second mandrel are fixed on the two second fixed seats, so that the two second fixed seats support and fix the second mandrel, and the stability of the second mandrel is improved; thirdly, the first supporting device is sleeved on the outer side of the first mandrel and fixed on the second fixing frame, so that the stability of the first supporting device is improved, and the first supporting device can slide along the first mandrel due to clearance fit between the first supporting device and the first mandrel, so that the flexibility of the first supporting device is improved; thirdly, the second supporting device is sleeved on the outer side of the second mandrel and fixed on the second fixing frame, so that the stability of the second supporting device is improved, and the second supporting device can slide along the second mandrel due to clearance fit with the second mandrel, so that the flexibility of the second supporting device is improved; meanwhile, the second fixing frame is connected with the backpack body; thirdly, one end of a first extension spring is connected with a first fixed seat, the other end of the first extension spring is connected with a first supporting device, one end of a second extension spring is connected with a second fixed seat, and the other end of the second extension spring is connected with a second supporting device, so that when the first fixed frame and the second fixed frame move relatively, the first supporting device and the second supporting device respectively pull the first extension spring and the second extension spring to generate elastic deformation; and thirdly, one end of the first supporting spring is contacted with the other first fixing seat, and the other end of the first supporting spring is contacted with the first supporting device, so that when the first fixing frame and the second fixing frame move relatively, the first supporting device and the second supporting device respectively compress the first supporting spring and the second supporting spring to generate elastic deformation. By adopting the structure, the structure is simple, and when the two straps are connected with the first fixing frame, a person can back up the damping backpack through the two straps; when the people is when removing, the knapsack body is because of the weight effect moves down, the knapsack body will make first strutting arrangement and second strutting arrangement take place relative movement with first dabber and second dabber respectively through the second mount this moment, and make first extension spring, second extension spring, first support spring and second support spring take place elastic deformation, thereby realize making first extension spring, second extension spring, first support spring and second support spring bear and come to shock attenuation knapsack effort, and then prevent that the knapsack body from jolting from top to bottom, the produced effort of knapsack body is used on the human body, in order to avoid the injury to human backbone and shoulder, in order to improve the use experience of product. Moreover, the gravity of the backpack body is borne by the springs, so that the springs are prevented from being damaged due to the overlarge stress of the single spring, the quality of the product is improved, and the service life of the product is prolonged.

Additionally, the utility model provides an among the above-mentioned technical scheme shock attenuation knapsack can also have following additional technical characteristic:

in the above technical solution, preferably, the shock-absorbing backpack further includes: the third fixing frame, the third fixing seat, the third mandrel, the fourth fixing seat, the fourth mandrel, the third supporting device, the fourth supporting device, the third extension spring, the third supporting spring, the fourth extension spring and the fourth supporting spring; the two third fixing seats are fixed at two ends of the third fixing frame, and the third fixing seats are positioned at one side of the third fixing frame; the third mandrel simultaneously passes through the two third fixing seats, and two ends of the third mandrel are fixed on the two third fixing seats; two fourth fixed seats are fixed at two ends of the third fixed frame, and the fourth fixed seats are positioned at the other side of the third fixed frame; the fourth mandrel simultaneously passes through the two fourth fixed seats, and two ends of the fourth mandrel are fixed on the two fourth fixed seats; the third supporting device is sleeved on the outer side of the third mandrel and is fixed on the first fixing frame; the fourth supporting device is sleeved on the outer side of the fourth mandrel, and the third supporting device is fixed on the first fixing frame; one end of the third extension spring is connected with a third fixed seat, and the other end of the third extension spring is connected with a third supporting device; one end of the third supporting spring is connected with the other third fixing seat, and the other end of the third supporting spring is connected with the third supporting device; one end of a fourth extension spring is connected with a fourth fixed seat, and the other end of the fourth extension spring is connected with a fourth supporting device; one end of the fourth supporting spring is connected with the other fourth fixing seat, and the other end of the fourth supporting spring is connected with the fourth supporting device; the third supporting device is in clearance fit with the third mandrel, and the fourth supporting device is in clearance fit with the fourth mandrel.

In the technical scheme, firstly, two third fixing seats are fixed at two ends of a third fixing frame, and the two third fixing seats are positioned at one side of the third fixing frame so as to improve the stability of the third fixing seats; secondly, the third mandrel penetrates through the two third fixing seats simultaneously, and two ends of the third mandrel are fixed on the two third fixing seats, so that the third mandrel is supported and fixed by the two third fixing seats, and the stability of the third mandrel is improved; thirdly, the two fourth fixing seats are fixed at two ends of the third fixing frame, and the two fourth fixing seats are positioned at the other side of the third fixing frame, so that the stability of the fourth fixing seats is improved; thirdly, the fourth mandrel penetrates through the two fourth fixing seats simultaneously, and two ends of the fourth mandrel are fixed on the two fourth fixing seats, so that the fourth mandrel is supported and fixed by the two fourth fixing seats, and the stability of the fourth mandrel is improved; thirdly, the third supporting device is sleeved on the outer side of the third mandrel and fixed on the first fixing frame, so that the stability of the third supporting device is improved, and the third supporting device can slide along the third mandrel due to clearance fit with the third mandrel, so that the flexibility of the third supporting device is improved; thirdly, the fourth supporting device is sleeved on the outer side of the fourth mandrel and fixed on the first fixing frame, so that the stability of the fourth supporting device is improved, and the fourth supporting device can slide along the fourth mandrel due to clearance fit with the fourth mandrel, so that the flexibility of the fourth supporting device is improved; thirdly, one end of a third extension spring is connected with a third fixed seat, the other end of the third extension spring is connected with a third supporting device, one end of a fourth extension spring is connected with a fourth fixed seat, and the other end of the fourth extension spring is connected with a fourth supporting device, so that when the third fixed frame and the first fixed frame move relatively, the third supporting device and the fourth supporting device respectively pull the third extension spring and the fourth extension spring to generate elastic deformation; and thirdly, one end of the third supporting spring is contacted with the other third fixing seat, and the other end of the third supporting spring is contacted with the third supporting device, so that when the third fixing frame and the first fixing frame move relatively, the third supporting device and the fourth supporting device respectively compress the third supporting spring and the fourth supporting spring to generate elastic deformation. By adopting the structure, the structure is simple, and when the two straps are connected with the third fixing frame, a person can back up the damping backpack through the two straps; when the people is when removing, the knapsack body is because of the weight effect downstream, third strutting arrangement and fourth strutting arrangement take place relative displacement with third dabber and fourth dabber respectively this moment, first strutting arrangement and second strutting arrangement also take place relative displacement with first dabber and second dabber respectively simultaneously, thereby realize making a plurality of springs bear to shock attenuation knapsack effort, further play absorbing effect, and then prevent that the effort from being used on one's body, further avoid the injury to human backbone and shoulder, experience in order to improve the use of product. Moreover, the gravity of the backpack body is borne by the springs, so that the springs are prevented from being damaged due to the overlarge stress of the single spring, the quality of the product is improved, and the service life of the product is prolonged.

In the above technical solution, preferably, the first supporting device includes: a first support base; two first supporting seats are fixed on the second fixing frame, one first supporting seat is connected with the other end of the first extension spring, and the other first supporting seat is connected with the other end of the first extension spring; wherein, there is the interval between two first supporting seats.

In this technical scheme, through fixing two first supporting seats on the second mount, make one of them first supporting seat be connected with first extension spring's the other end to make another first supporting seat be connected with first supporting spring's the other end, when realizing that two first supporting seats take place to remove, two first supporting seats make first extension spring and first supporting spring take place elastic deformation respectively, thereby make first extension spring and first supporting spring bear the gravity of knapsack body. Because there is the interval between two first supporting seats, consequently under the unchangeable condition of second mount overall height, shorten first extension spring and first supporting spring length to the cost of product has been reduced.

In the above technical solution, preferably, the second supporting device includes: a second support seat; two second supporting seats are fixed on the second fixing frame, one second supporting seat is connected with the other end of the second extension spring, and the other second supporting seat is connected with the other end of the second supporting spring; wherein, there is the interval between two second supporting seats.

In this technical scheme, through fixing two second supporting seats on the second mount, make one of them second supporting seat be connected with second extension spring's the other end to make another second supporting seat be connected with second supporting spring's the other end, in order to realize when two second supporting seats take place to remove, two second supporting seats make second extension spring and second supporting spring take place elastic deformation respectively, thereby make second extension spring and second supporting spring bear the gravity of knapsack body. Because there is the interval between two second supporting seats, consequently under the unchangeable condition of second mount overall height, shorten second extension spring and second supporting spring length to the cost of product has been reduced.

In the above technical solution, preferably, the third supporting device includes: a third support seat; two third supporting seats are fixed on the first fixing frame, one third supporting seat is connected with the other end of the third extension spring, and the other third supporting seat is connected with the other end of the third supporting spring; wherein, there is the interval between two third supporting seats.

In this technical scheme, through fixing two third supporting seats on first mount, make one of them third supporting seat be connected with third extension spring's the other end to make another third supporting seat be connected with third supporting spring's the other end, in order to realize when two third supporting seats take place to remove, two third supporting seats make third extension spring and third supporting spring take place elastic deformation respectively, thereby make third extension spring and third supporting spring bear the gravity of knapsack body. Because there is the interval between two third supporting seats, consequently under the unchangeable condition of third mount overall height, shorten third extension spring and third supporting spring length to the cost of product has been reduced.

In the above technical solution, preferably, the fourth supporting device includes: a fourth supporting seat; two fourth supporting seats are fixed on the first fixing frame, one fourth supporting seat is connected with the other end of the fourth extension spring, and the other fourth supporting seat is connected with the other end of the fourth supporting spring; wherein, there is the interval between two fourth supporting seats.

In this technical scheme, through fixing two fourth supporting seats on first mount, make one of them fourth supporting seat be connected with fourth extension spring's the other end to make another fourth supporting seat be connected with fourth supporting spring's the other end, in order to realize when two fourth supporting seats take place to remove, two fourth supporting seats make fourth extension spring and fourth supporting spring take place elastic deformation respectively, thereby make fourth extension spring and fourth supporting spring bear the gravity of knapsack body. Because there is the interval between two fourth supporting seats, consequently under the unchangeable condition of third mount overall height, shorten fourth extension spring and fourth supporting spring length to the cost of product has been reduced.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

figure 1 shows a schematic structural view of a shock absorbing backpack according to one embodiment of the present invention;

figure 2 shows a schematic structural view of a shock absorbing backpack according to another embodiment of the present invention;

fig. 3 is a sectional view taken along the line a-a of fig. 2 showing a structural schematic view of a shock-absorbing backpack according to another embodiment of the present invention;

fig. 4 is a B-B sectional view of fig. 2 showing a structural schematic view of a shock-absorbing backpack according to another embodiment of the present invention;

wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:

10 backpack body, 12 backpack body, 14 first fixing frame, 16 first fixing frame, 18 first mandrel, 20 first fixing frame, 22 second mandrel, 24 first supporting device, 242 first supporting seat, 26 second supporting device, 262 second supporting seat, 28 second fixing frame, 30 first stretching spring, 32 first supporting spring, 34 second stretching spring, 36 second supporting spring, 38 third fixing frame, 40 third fixing frame, 42 third mandrel, 44 fourth fixing frame, 46 fourth mandrel, 48 third supporting device, 482 third supporting seat, 50 fourth supporting device, 502 fourth supporting seat, 52 third stretching spring, 54 third supporting spring, 56 fourth stretching spring and 58 fourth supporting spring.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The shock absorbing backpack according to some embodiments of the present invention is described below with reference to fig. 1 to 4.

In the embodiment of the present invention, as shown in fig. 1 to 4, the present invention provides a damping backpack, which includes a backpack body 10 and two straps 12, and the damping backpack includes: the first fixing frame 14, the first fixing seat 16, the first mandrel 18, the second fixing seat 20, the second mandrel 22, the first supporting device 24, the second supporting device 26, the second fixing frame 28, the first extension spring 30, the first supporting spring 32, the second extension spring 34 and the second supporting spring 36; the two first fixing seats 16 are fixed at two ends of the first fixing frame 14, and the two first fixing seats 16 are located at one side of the first fixing frame 14; the first mandrel 18 simultaneously penetrates through the two first fixing seats 16, and two ends of the first mandrel 18 are fixed on the two first fixing seats 16; the two second fixing seats 20 are fixed at two ends of the first fixing frame 14, and the second fixing seats 20 are located at the other side of the first fixing frame 14; the second mandrel 22 simultaneously passes through the two second fixing seats 20, and two ends of the second mandrel 22 are fixed on the two second fixing seats 20; the first supporting device 24 is sleeved outside the first mandrel 18; the second supporting device 26 is sleeved on the outer side of the second mandrel 22; the second fixing frame 28 is connected with the backpack body 10, and the first supporting device 24 and the second supporting device 26 are fixed on the second fixing frame 28; one end of the first extension spring 30 is connected with a first fixed seat 16, and the other end of the first extension spring 30 is connected with the first supporting device 24; one end of the first supporting spring 32 is in contact with the other first fixing seat 16, and the other end of the first supporting spring 32 is in contact with the first supporting device 24; one end of the second extension spring 34 is connected with one second fixed seat 20, and the other end of the second extension spring 34 is connected with the second supporting device 26; one end of the second supporting spring 36 is in contact with the other second fixed seat 20, and the other end of the second supporting spring 36 is in contact with the second supporting device 26; wherein the first supporting device 24 is in clearance fit with the first mandrel 18, and the second supporting device 26 is in clearance fit with the second mandrel 22.

In this embodiment, first, the two first fixing seats 16 are fixed at two ends of the first fixing frame 14, and the two first fixing seats 16 are located at one side of the first fixing frame 14, so as to improve the stability of the first fixing seats 16; secondly, the first mandrel 18 simultaneously penetrates through the two first fixing seats 16, and the two ends of the first mandrel 18 are fixed on the two first fixing seats 16, so that the two first fixing seats 16 support and fix the first mandrel 18, and the stability of the first mandrel 18 is improved; thirdly, the two second fixing seats 20 are fixed at two ends of the first fixing frame 14, and the two second fixing seats 20 are positioned at the other side of the first fixing frame 14, so that the stability of the second fixing seats 20 is improved; thirdly, the second mandrel 22 simultaneously passes through the two second fixing seats 20, and two ends of the second mandrel 22 are fixed on the two second fixing seats 20, so that the two second fixing seats 20 support and fix the second mandrel 22, and the stability of the second mandrel 22 is improved; thirdly, the first supporting device 24 is sleeved outside the first mandrel 18, and the first supporting device 24 is fixed on the second fixing frame 28, so that the stability of the first supporting device 24 is improved, and the first supporting device 24 can slide along the first mandrel 18 due to the clearance fit between the first supporting device 24 and the first mandrel 18, so that the flexibility of the first supporting device 24 is improved; thirdly, the second supporting device 26 is sleeved outside the second mandrel 22, and the second supporting device 26 is fixed on the second fixing frame 28, so as to improve the stability of the second supporting device 26, and since the second supporting device 26 is in clearance fit with the second mandrel 22, the second supporting device 26 can slide along the second mandrel 22, so as to improve the flexibility of the second supporting device 26; at the same time, the second holder 28 is connected to the backpack body 10; thirdly, one end of the first extension spring 30 is connected with one first fixed seat 16, the other end of the first extension spring 30 is connected with the first supporting device 24, one end of the second extension spring 34 is connected with one second fixed seat 20, and the other end of the second extension spring 34 is connected with the second supporting device 26, so that when the first fixing frame 14 and the second fixing frame 28 move relatively, the first supporting device 24 and the second supporting device 26 respectively pull the first extension spring 30 and the second extension spring 34 to elastically deform; thirdly, when the first fixing frame 14 and the second fixing frame 28 move relatively, the first supporting device 24 and the second supporting device 26 compress the first supporting spring 32 and the second supporting spring 36 to deform elastically by contacting one end of the first supporting spring 32 with the other first fixing seat 16 and contacting the other end of the first supporting spring 32 with the first supporting device 24. By adopting the structure, the structure is simple, and when the two straps 12 are connected with the first fixing frame 14, a person can back up the shock absorption backpack through the two straps 12; when a person moves, the backpack body 10 moves downwards due to the action of weight, at this time, the backpack body 10 makes the first supporting device 24 and the second supporting device 26 move relative to the first mandrel 18 and the second mandrel 22 through the second fixing frame 28, and makes the first extension spring 30, the second extension spring 34, the first supporting spring 32 and the second supporting spring 36 elastically deform, so that the first extension spring 30, the second extension spring 34, the first supporting spring 32 and the second supporting spring 36 are subjected to the acting force of the shock absorption backpack, and further, when the backpack body 10 jounces up and down, the acting force generated by the backpack body 10 acts on the person, so that the spine and the shoulders of the person are prevented from being injured, and the use experience of products is improved. Moreover, the gravity of the backpack body 10 is borne by the plurality of springs, so that the damage of the springs caused by the overlarge stress of a single spring can be avoided, the quality of the product is improved, and the service life of the product is prolonged.

In an embodiment of the present invention, preferably, as shown in fig. 1 to 4, the shock absorbing backpack further includes: a third fixing frame 38, a third fixing seat 40, a third spindle 42, a fourth fixing seat 44, a fourth spindle 46, a third supporting device 48, a fourth supporting device 50, a third extension spring 52, a third supporting spring 54, a fourth extension spring 56 and a fourth supporting spring 58; the two third fixing seats 40 are fixed at two ends of the third fixing frame 38, and the third fixing seats 40 are located at one side of the third fixing frame 38; the third spindle 42 simultaneously passes through the two third fixing seats 40, and two ends of the third spindle 42 are fixed on the two third fixing seats 40; two fourth fixing seats 44 are fixed at two ends of the third fixing frame 38, and the fourth fixing seats 44 are located at the other side of the third fixing frame 38; the fourth mandrel 46 simultaneously passes through the two fourth fixing seats 44, and two ends of the fourth mandrel 46 are fixed on the two fourth fixing seats 44; the third supporting device 48 is sleeved outside the third mandrel 42, and the third supporting device 48 is fixed on the first fixing frame 14; the fourth supporting device 50 is sleeved on the outer side of the fourth mandrel 46, and the third supporting device 48 is fixed on the first fixing frame 14; one end of the third extension spring 52 is connected with a third fixing seat 40, and the other end of the third extension spring 52 is connected with the third supporting device 48; one end of the third supporting spring 54 is connected with another third fixing seat 40, and the other end of the third supporting spring 54 is connected with the third supporting device 48; one end of the fourth extension spring 56 is connected to a fourth fixing seat 44, and the other end of the fourth extension spring 56 is connected to the fourth supporting device 50; one end of the fourth supporting spring 58 is connected with the other fourth fixing seat 44, and the other end of the fourth supporting spring 58 is connected with the fourth supporting device 50; the third supporting device 48 is in clearance fit with the third mandrel 42, and the fourth supporting device 50 is in clearance fit with the fourth mandrel 46.

In this embodiment, first, the two third fixing seats 40 are fixed at two ends of the third fixing frame 38, and the two third fixing seats 40 are located at one side of the third fixing frame 38, so as to improve the stability of the third fixing seats 40; secondly, the third mandrel 42 simultaneously penetrates through the two third fixing seats 40, and two ends of the third mandrel 42 are fixed on the two third fixing seats 40, so that the third mandrel 42 is supported and fixed by the two third fixing seats 40, and the stability of the third mandrel 42 is improved; thirdly, the two fourth fixing seats 44 are fixed at two ends of the third fixing frame 38, and the two fourth fixing seats 44 are located at the other side of the third fixing frame 38, so as to improve the stability of the fourth fixing seats 44; thirdly, the fourth mandrel 46 simultaneously passes through the two fourth fixing seats 44, and two ends of the fourth mandrel 46 are fixed on the two fourth fixing seats 44, so that the fourth mandrel 46 is supported and fixed by the two fourth fixing seats 44, and the stability of the fourth mandrel 46 is improved; thirdly, the third supporting device 48 is sleeved outside the third mandrel 42, and the third supporting device 48 is fixed on the first fixing frame 14, so that the stability of the third supporting device 48 is improved, and since the third supporting device 48 is in clearance fit with the third mandrel 42, the third supporting device 48 can slide along the third mandrel 42, so that the flexibility of the third supporting device 48 is improved; thirdly, the fourth supporting device 50 is sleeved outside the fourth mandrel 46, and the fourth supporting device 50 is fixed on the first fixing frame 14, so that the stability of the fourth supporting device 50 is improved, and since the fourth supporting device 50 is in clearance fit with the fourth mandrel 46, the fourth supporting device 50 can slide along the fourth mandrel 46, so that the flexibility of the fourth supporting device 50 is improved; thirdly, one end of a third extension spring 52 is connected with a third fixed seat 40, the other end of the third extension spring 52 is connected with a third supporting device 48, one end of a fourth extension spring 56 is connected with a fourth fixed seat 44, and the other end of the fourth extension spring 56 is connected with a fourth supporting device 50, so that when the third fixed frame 38 and the first fixed frame 14 move relatively, the third supporting device 48 and the fourth supporting device 50 respectively pull the third extension spring 52 and the fourth extension spring 56 to deform elastically; thirdly, when the third fixing frame 38 and the first fixing frame 14 move relatively, the third supporting device 48 and the fourth supporting device 50 compress the third supporting spring 54 and the fourth supporting spring 58 to deform elastically, respectively, by contacting one end of the third supporting spring 54 with the other third fixing seat 40 and contacting the other end of the third supporting spring 54 with the third supporting device 48. By adopting the structure, the structure is simple, and when the two straps 12 are connected with the third fixing frame 38, a person can back up the shock absorption backpack through the two straps 12; when a person moves, the backpack body 10 moves downwards due to the action of weight, at this time, the third supporting device 48 and the fourth supporting device 50 respectively and relatively displace with the third mandrel 42 and the fourth mandrel 46, and simultaneously, the first supporting device 24 and the second supporting device 26 also respectively and relatively displace with the first mandrel 18 and the second mandrel 22, so that the plurality of springs bear the acting force of the shock absorption backpack, the shock absorption effect is further achieved, the acting force is further prevented from acting on the person, the injury to the spine and shoulders of the person is further avoided, and the use experience of the product is improved. Moreover, the gravity of the backpack body 10 is borne by the plurality of springs, so that the damage of the springs caused by the overlarge stress of a single spring can be avoided, the quality of the product is improved, and the service life of the product is prolonged.

In an embodiment of the present invention, preferably, as shown in fig. 1 to 4, the first supporting device 24 includes: a first support base 242; two first supporting seats 242 are fixed on the second fixing frame 28, one first supporting seat 242 is connected with the other end of the first extension spring 30, and the other first supporting seat 242 is connected with the other end of the first supporting spring 32; wherein, there is a distance between the two first supporting seats 242.

In this embodiment, by fixing the two first supporting seats 242 on the second fixing frame 28, one of the first supporting seats 242 is connected to the other end of the first extension spring 30, and the other first supporting seat 242 is connected to the other end of the first supporting spring 32, so that when the two first supporting seats 242 move, the two first supporting seats 242 respectively elastically deform the first extension spring 30 and the first supporting spring 32, and the first extension spring 30 and the first supporting spring 32 bear the gravity of the backpack body 10. Because there is a space between the two first supporting seats 242, the lengths of the first extension spring 30 and the first supporting spring 32 are shortened under the condition that the overall height of the second fixing frame 28 is not changed, thereby reducing the cost of the product.

In an embodiment of the present invention, preferably, as shown in fig. 1 to 4, the second supporting device 26 includes: a second support base 262; two second supporting seats 262 are fixed on the second fixing frame 28, one second supporting seat 262 is connected with the other end of the second extension spring 34, and the other second supporting seat 262 is connected with the other end of the second supporting spring 36; wherein, there is a space between the two second supporting seats 262.

In this technical solution, two second supporting seats 262 are fixed on the second fixing frame 28, so that one of the second supporting seats 262 is connected to the other end of the second extension spring 34, and the other of the second supporting seats 262 is connected to the other end of the second supporting spring 36, so that when the two second supporting seats 262 move, the two second supporting seats 262 respectively elastically deform the second extension spring 34 and the second supporting spring 36, and the second extension spring 34 and the second supporting spring 36 bear the gravity of the backpack body 10. Due to the space between the two second supporting seats 262, the lengths of the second extension spring 34 and the second supporting spring 36 are shortened under the condition that the overall height of the second fixing frame 28 is not changed, thereby reducing the cost of the product.

In an embodiment of the present invention, preferably, as shown in fig. 1 to 4, the third supporting device 48 includes: a third support seat 482; two third supporting seats 482 are fixed on the first fixing frame 14, one third supporting seat 482 is connected with the other end of the third extension spring 52, and the other third supporting seat 482 is connected with the other end of the third supporting spring 54; wherein, there is a distance between the two third supporting seats 482.

In this embodiment, two third supporting seats 482 are fixed on the first fixing frame 14, such that one of the third supporting seats 482 is connected to the other end of the third extension spring 52, and the other third supporting seat 482 is connected to the other end of the third supporting spring 54, so that when the two third supporting seats 482 move, the two third supporting seats 482 respectively elastically deform the third extension spring 52 and the third supporting spring 54, and the third extension spring 52 and the third supporting spring 54 bear the weight of the backpack body 10. Due to the space between the two third supporting seats 482, the lengths of the third extension spring 52 and the third supporting spring 54 are shortened under the condition that the overall height of the third fixing frame 38 is not changed, thereby reducing the cost of the product.

In an embodiment of the present invention, preferably, as shown in fig. 1 to 4, the fourth supporting device 50 includes: a fourth support seat 502; two fourth supporting seats 502 are fixed on the first fixing frame 14, one fourth supporting seat 502 is connected with the other end of the fourth extension spring 56, and the other fourth supporting seat 502 is connected with the other end of the fourth supporting spring 58; wherein, there is a distance between the two fourth supporting seats 502.

In this technical solution, two fourth supporting seats 502 are fixed on the first fixing frame 14, one of the fourth supporting seats 502 is connected to the other end of the fourth extension spring 56, and the other of the fourth supporting seats 502 is connected to the other end of the fourth supporting spring 58, so that when the two fourth supporting seats 502 move, the two fourth supporting seats 502 respectively elastically deform the fourth extension spring 56 and the fourth supporting spring 58, and the fourth extension spring 56 and the fourth supporting spring 58 bear the gravity of the backpack body 10. Because there is a distance between the two fourth supporting seats 502, under the condition that the overall height of the third fixing frame 38 is not changed, the lengths of the fourth extension spring 56 and the fourth supporting spring 58 are shortened, thereby reducing the cost of the product.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In the present disclosure, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A shock absorbing backpack comprising a backpack body and two straps, the shock absorbing backpack comprising:

a first fixing frame;

the two first fixing seats are fixed at two ends of the first fixing frame and are positioned at one side of the first fixing frame;

the first mandrel penetrates through the two first fixing seats at the same time, and two ends of the first mandrel are fixed on the two first fixing seats;

the two second fixed seats are fixed at two ends of the first fixed frame, and the second fixed seats are positioned at the other side of the first fixed frame;

the second mandrel penetrates through the two second fixed seats at the same time, and two ends of the second mandrel are fixed on the two second fixed seats;

the first supporting device is sleeved on the outer side of the first mandrel;

the second supporting device is sleeved on the outer side of the second mandrel;

the second fixing frame is connected with the backpack body, and the first supporting device and the second supporting device are fixed on the second fixing frame;

one end of the first extension spring is connected with one first fixed seat, and the other end of the first extension spring is connected with the first supporting device;

one end of the first supporting spring is in contact with the other first fixing seat, and the other end of the first supporting spring is in contact with the first supporting device;

one end of the second extension spring is connected with one second fixed seat, and the other end of the second extension spring is connected with the second supporting device;

one end of the second supporting spring is in contact with the other second fixing seat, and the other end of the second supporting spring is in contact with the second supporting device;

the first supporting device is in clearance fit with the first mandrel, and the second supporting device is in clearance fit with the second mandrel.

2. The shock absorbing backpack of claim 1, further comprising:

a third fixing frame;

the two third fixing seats are fixed at two ends of the third fixing frame, and the third fixing seat is positioned at one side of the third fixing frame;

the third mandrel penetrates through the two third fixing seats simultaneously, and two ends of the third mandrel are fixed on the two third fixing seats;

the two fourth fixed seats are fixed at two ends of the third fixed frame, and the fourth fixed seat is positioned at the other side of the third fixed frame;

the fourth mandrel penetrates through the two fourth fixing seats simultaneously, and two ends of the fourth mandrel are fixed on the two fourth fixing seats;

the third supporting device is sleeved on the outer side of the third mandrel and is fixed on the first fixing frame;

the fourth supporting device is sleeved on the outer side of the fourth mandrel, and the third supporting device is fixed on the first fixing frame;

one end of the third extension spring is connected with one third fixing seat, and the other end of the third extension spring is connected with the third supporting device;

one end of the third supporting spring is in contact with the other third fixing seat, and the other end of the third supporting spring is in contact with the third supporting device;

one end of the fourth extension spring is connected with one fourth fixed seat, and the other end of the fourth extension spring is connected with the fourth supporting device;

one end of the fourth supporting spring is in contact with the other fourth fixing seat, and the other end of the fourth supporting spring is in contact with the fourth supporting device;

the third supporting device is in clearance fit with the third mandrel, and the fourth supporting device is in clearance fit with the fourth mandrel.

3. The shock absorbing backpack of claim 2, wherein said first support means comprises:

the two first supporting seats are fixed on the second fixing frame, one first supporting seat is connected with the other end of the first extension spring, and the other first supporting seat is connected with the other end of the first extension spring;

wherein, there is the interval between two first supporting seat.

4. The shock absorbing backpack of claim 3, wherein said second support means comprises:

the two second supporting seats are fixed on the second fixing frame, one second supporting seat is connected with the other end of the second extension spring, and the other second supporting seat is connected with the other end of the second supporting spring;

wherein, there is the interval between two the second supporting seat.

5. The shock absorbing backpack of claim 4, wherein said third support means comprises:

the two third supporting seats are fixed on the first fixing frame, one third supporting seat is connected with the other end of the third extension spring, and the other third supporting seat is connected with the other end of the third supporting spring;

and a space is reserved between the two third supporting seats.

6. The shock absorbing backpack of claim 5, wherein said fourth support means comprises:

two fourth supporting seats are fixed on the first fixing frame, one fourth supporting seat is connected with the other end of the fourth extension spring, and the other fourth supporting seat is connected with the other end of the fourth supporting spring;

and a space is reserved between the two fourth supporting seats.

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