Pressure-reducing shoulder pad for shoulder straps of backpack and backpack

Abstract

The invention belongs to the technical field of hand-carried articles, and particularly relates to a pressure-reducing shoulder pad for shoulder straps of a backpack and the backpack. The decompression shoulder pad comprises a shoulder pad body connected with a shoulder strap, a damping air bag is arranged on the shoulder pad body, the length direction of the damping air bag is the same as that of the shoulder pad body, and the upper end face of the damping air bag in the width direction of the damping air bag is flat; supporting pieces are arranged in the damping air bag, the length direction of the supporting pieces is the same as the width direction of the damping air bag, and the supporting pieces are arranged in the damping air bag at equal intervals in the length direction of the damping air bag. Due to the existence of the supporting piece, the firmness of the air bag structure is enhanced, the appearance can be kept stable when the air bag structure is pressed, and the problem of uneven pressure caused by excessive deformation is avoided; and even under the condition that the shoulder pad bears large pressure, the pressure can be uniformly dispersed, and continuous and stable support is provided.

Description

Technical Field

[0001] The present invention belongs to the technical field of hand-held articles, and particularly relates to a pressure-reducing shoulder pad for a shoulder strap of a backpack and a backpack. Background Art

[0002] With the popularity of backpacks, the problem of the backpack weight has gradually become the focus of attention. In order to reduce the burden on the shoulders, shock-absorbing shoulder pads have emerged, which not only improve the carrying comfort but also effectively protect the shoulder health.

[0003] After retrieval, the patent (application number: CN201110044720.4) "Pressure-reducing shoulder pad for a shoulder strap of a backpack and a backpack" laminates a silicone pressure-reducing pad with a TPU film, enhancing the structural firmness, and at the same time having the functions of anti-stretching, soft and comfortable. However, this design adopts an integrated setting method and cannot be directly applied to other types of backpacks. In addition, the silicone has a slow rebound speed and a low energy recovery efficiency, and cannot quickly adapt to dynamic changes like an airbag.

[0004] Another patent (application number: CN201720998731.9) "Anti-slip airbag shoulder pad" realizes the protection of buffer force through multiple airbags with different sizes and spaced distributions, avoiding the shoulders from feeling sore or scratched due to long-term load-bearing. Although this design adopts the arrangement of multiple airbags for shock absorption, each airbag works independently, and it is difficult to achieve an overall coordinated shock absorption effect, resulting in the problem of uneven force in a complex use environment.

[0005] In addition, most of the existing designs are independently set for the two shoulder straps, and there is no linkage mechanism between the left and right shoulder pads, so the pressure distribution cannot be dynamically adjusted. When the items in the backpack shift, this design is likely to exacerbate the discomfort of the user and further affect the carrying experience. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a pressure-reducing shoulder pad for a shoulder strap of a backpack and a backpack to solve the problems in the above-mentioned background art.

[0007] To solve the above technical problems, the first technical solution of the present invention is a pressure-reducing shoulder pad for a shoulder strap of a backpack. The backpack has shoulder straps. The pressure-reducing shoulder pad includes a shoulder pad main body connected to the shoulder straps. The shoulder pad main body is provided with shock-absorbing airbags. The length direction of the shock-absorbing airbags is the same as the length direction of the shoulder pad main body. The end face of the shock-absorbing airbags is flat in its own width direction; a support member is arranged in the shock-absorbing airbags. The length direction of the support member is the same as the width direction of the shock-absorbing airbags. The support member is arranged in the shock-absorbing airbags at equal intervals along the length direction of the shock-absorbing airbags; when the shock-absorbing airbags are under pressure, the support member maintains the stable shape of the shock-absorbing airbags to ensure the balanced force of the pressure-reducing shoulder pad.

[0008] Preferably, the support member is integrally annularly arranged, and one side of the support member close to the shoulder strap is open, and the side of the support member far from the shoulder strap is fixedly arranged on the side wall of the shock-absorbing airbag; first sliders are slidably arranged on both sides of the opening of the support member, and the first sliders are connected in series by a connecting rope; when the shock-absorbing airbag is subjected to abnormal pressure, all the support members are combined by the first sliders and the connecting rope to ensure the balanced force of the decompression shoulder pad.

[0009] Furthermore, an adjustment slider is arranged at one end of the shock-absorbing airbag in its own length direction, the adjustment slider is slidably and sealingly arranged on the shock-absorbing airbag, the adjustment slider is connected to the connecting rope, and limit members are arranged at both ends of the adjustment slider and the first slider in the length direction of the shock-absorbing airbag; the limit members restrict the sliding stroke of the first slider on the support member and the sliding stroke of the adjustment slider on the shock-absorbing airbag; when the shock-absorbing airbag is subjected to abnormal pressure, by controlling the sliding stroke of the adjustment slider inside the shock-absorbing airbag, the tightness of the connecting rope is adjusted, and the force uniformity of the decompression shoulder pad is improved.

[0010] Furthermore, the shoulder pad body and the shock-absorbing airbag are detachably connected to facilitate the replacement of the shock-absorbing airbag; an adjustment component is arranged at one end of the shoulder pad body adjacent to the adjustment slider, the adjustment component is connected to the adjustment slider, and the adjustment component is used to control the sliding stroke of the adjustment slider inside the shock-absorbing airbag.

[0011] Furthermore, the adjustment component includes a connecting head connected to the adjustment slider, an adjustment member rotatably arranged on the shoulder pad body, and a connecting member is arranged between the adjustment member and the connecting head, and the connecting member is used for the transmission between the adjustment member and the connecting head; the adjustment member and the connecting member are a gear and a rack.

[0012] To solve the above technical problems, the second technical solution of the present invention is an optimization of the shock-absorbing shoulder pad described in the first technical solution: the backpack has a handle strap, and the pressure-reducing shoulder pad includes a handle pad for connecting the pressure-reducing shoulder pads on the left and right shoulder straps. The handle pad is composed of a handle main body and a handle airbag. The handle main body is connected to the handle strap, and the handle airbag has a connection joint connected to the pressure-reducing shoulder pad; the adjustment slider is located at one end of the shock-absorbing shoulder pad away from the handle pad, and a connection slider is provided at one end of the shock-absorbing shoulder pad close to the handle pad. The connection slider is slidably and hermetically connected to the shock-absorbing shoulder pad. The shock-absorbing airbag leads out a connection pipe adapted to the connection joint from the end where the connection slider is located. The connection pipe has a seal for controlling on / off, and the seal is connected to the connection slider through the connection rope; when the shock-absorbing airbag is subjected to abnormal pressure, the seal is pulled by the connection rope to connect the connection joint and the connection pipe, so that the gas in the handle airbag enters the pressure-reducing shoulder pad to ensure the balanced force on the pressure-reducing shoulder pad.

[0013] Furthermore, a compression spring is provided between the seal and the connection pipe. The compression spring is located on the side of the seal close to the shock-absorbing shoulder pad, and the compression spring and the connection rope are provided at the same end of the seal; the compression spring is used to control the disconnection of the connection pipe, and the connection rope is used to control the conduction of the connection pipe.

[0014] Furthermore, the shock-absorbing shoulder pad is divided into a left shoulder pad and a right shoulder pad according to the left and right shoulder straps. The connection between the left shoulder pad and the handle pad and the connection between the right shoulder pad and the handle pad are controlled separately; the internal air pressure of the handle airbag is greater than the internal air pressure of the shock-absorbing airbag; when the left shoulder pad and the right shoulder pad are under normal force, the connection pipes of the left shoulder pad and the right shoulder pad are both in a disconnected state; when the left shoulder pad and the right shoulder pad are under uneven force, the connection pipe on the shock-absorbing shoulder pad on the side with greater force is conducted, so that the internal gas of the handle airbag moves into the shock-absorbing airbag to ensure the even force on the left shoulder pad and the right shoulder pad.

[0015] To solve the above technical problems, the third technical solution of the present invention is a backpack with double shoulder straps applying the pressure-reducing shoulder pad described in the first technical solution. When the backpack is in normal use, the shock-absorbing airbag and the support member ensure the balanced force on the pressure-reducing shoulder pad; when subjected to abnormal pressure, the first slider and the connection rope can combine all the support members to balance the pressure on the pressure-reducing shoulder pad; when it is necessary to adjust the balanced force of the pressure-reducing shoulder pad, the sliding stroke of the adjustment slider in the shock-absorbing airbag can be controlled through the adjustment component to achieve the best balanced force state.

[0016] In order to solve the above technical problems, technical solution four of the present invention is a backpack using the decompression shoulder pad as described in technical solution two. When the backpack is in normal use, the shock-absorbing airbag and the support member ensure the force balance of the decompression shoulder pad; when it is necessary to adjust the force balance of the decompression shoulder pad, the sliding stroke of the adjustment slider in the shock-absorbing airbag can be controlled by the adjustment component to achieve the best force balance state; when the backpack is unevenly stressed and one side of the shock-absorbing shoulder pad is subjected to abnormal pressure, the docking tube on that side will be connected under the pull of the connecting rope, so that the gas in the handle airbag flows into the shock-absorbing airbag, thereby balancing the pressure on both sides.

[0017] The technical effects of the present invention are mainly reflected in the following aspects:

[0018] The present invention provides equally spaced annular support members inside the shock-absorbing airbag, which are arranged along the width of the airbag and open on one side to accommodate the design of the shoulder strap. The presence of the support members not only enhances the firmness of the airbag structure, but also maintains a stable shape when under pressure, avoiding uneven pressure caused by excessive deformation; ensuring that even under greater pressure, the shoulder pad can evenly disperse the pressure and provide continuous and stable support.

[0019] The shock-absorbing airbag adopts a flat setting method, which increases the contact area with the shoulder and improves comfort. At the same time, the flat design enables the airbag to respond to pressure changes more quickly and provide better dynamic adjustment capabilities. This not only improves the user's wearing experience, but also enables the shoulder pad to automatically adjust to the best state in various sports conditions, effectively alleviating the fatigue caused by long-term carrying.

[0020] In order to solve the problem of uneven pressure caused by the independent operation of the left and right shoulder pads, the present invention introduces a linkage mechanism. The first sliders are connected in series through a connecting rope. When one shoulder pad is subjected to greater pressure, the system will automatically adjust the state of the other side to achieve overall pressure balance. This mechanism ensures that no matter how the items in the backpack are distributed, the shoulders can feel uniform pressure, greatly improving the comfort and safety of carrying. When it is detected that the shoulder pad on one side is subjected to uneven force, the side docking pipe is turned on to allow the gas in the handle airbag to flow into the shock-absorbing airbag to help redistribute the pressure; ensuring that the shoulders can maintain the best pressure distribution even in complex and changeable usage environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The structure diagram of the existing backpack is shown below;

[0022] Figure 2 is a structural diagram of the decompression shoulder pad of the present invention;

[0023] Figure 3 for Figure 2 Half-section diagram of the structure of the medium decompression shoulder pad;

[0024] Figure 4 is Figure 2 a schematic structural view of the inside of the shock-absorbing airbag of the decompression shoulder pad in

[0025] Figure 5 is Figure 2 a schematic structural view of the adjusting component of the decompression shoulder pad in

[0026] Figure 6 is Figure 2 a structural view of the handle pad in

[0027] Figure 7 is Figure 2 a schematic connection view of the decompression shoulder pad and the handle pad in

[0028] In the figure: 1. double-shoulder backpack, 11. shoulder strap, 12. handle strap; 2. decompression shoulder pad, 21. shoulder pad main body, 22. shock-absorbing airbag, 23. support member, 24. first slider, 25. connecting rope, 26. adjusting slider, 27. limiting member, 28. adjusting component, 281. connecting head, 282. adjusting member, 283. connecting member; 29. connecting slider; 3. handle pad, 31. handle main body, 32. handle airbag, 33. connecting joint, 34. connecting pipe, 35. seal, 36. compression spring. Specific Embodiments

[0029] The following further details the specific embodiments of the present invention in conjunction with the accompanying drawings, so that the technical solutions of the present invention are easier to understand and master. In the embodiments, it should be understood that the orientation or positional relationships indicated by terms such as "middle", "upper", "lower", "top", "right side", "left end", "above", "back", "middle part", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Additionally, in this specific embodiment, if the connection or fixing method between components is not specifically stated, the connection or fixing method can be bolt fixing, pin fixing, or pin shaft connection commonly used in the prior art, etc., and therefore will not be elaborated in this embodiment.

[0030] Embodiment 1

[0031] Refer to Figure 1 and Figure 2, this embodiment discloses a decompression shoulder pad 2 for a double - shoulder backpack strap. The double - shoulder backpack 1 has a shoulder strap 11. The decompression shoulder pad 2 includes a shoulder pad main body 21 connected to the shoulder strap 11. The shoulder pad main body 21 is provided with a shock - absorbing airbag 22. The length direction of the shock - absorbing airbag 22 is the same as the length direction of the shoulder pad main body 21. The airbag is made of a high - strength, wear - resistant and highly elastic TPU material. The length direction of the airbag is consistent with that of the shoulder pad main body 21, ensuring effective buffering when bearing vertical pressure. The upper end surface of the shock - absorbing airbag 22 is flat in its own width direction; this not only increases the contact area with the shoulder, improves comfort, but also enables the airbag to respond more quickly to pressure changes and provides better dynamic adjustment ability. A support member 23 is arranged inside the shock - absorbing airbag 22. The length direction of the support member 23 is the same as the width direction of the shock - absorbing airbag 22. The support member 23 is arranged equidistantly along the length direction of the shock - absorbing airbag 22 inside the shock - absorbing airbag 22; the support member 23 can be made of a flexible but rigid material (such as nylon or lightweight alloy), which can maintain the stability of the airbag shape while ensuring the shock - absorbing effect. This solves the problem of uneven pressure distribution caused by the lack of internal support in the prior art. When the shock - absorbing airbag 22 is under pressure, the support member 23 maintains the stable shape of the shock - absorbing airbag 22, ensuring the balanced force of the decompression shoulder pad 2.

[0032] The shoulder pad main body 21 and the shoulder strap 11 can be detachably connected or integrally connected. When the shoulder pad main body 21 and the shoulder strap 11 are integrally connected, it means that they are manufactured as a whole, rather than combined together through additional connecting parts or devices. This design can provide a more stable structure, reducing the possible failures or inconveniences caused by loose connections. Integral connection usually means higher durability and possibly better comfort, because there will be no additional seams or connecting parts that may cause discomfort to the user.

[0033] See Figure 3 , Figure 4, the support member 23 is integrally annularly arranged, and one side of the support member 23 close to the shoulder strap 11 is open. The part of the open side close to the shoulder strap 11 is convenient for better conforming to the body curve of the backpack user. The side of the support member 23 far from the shoulder strap 11 is fixedly arranged on the side wall of the shock-absorbing airbag 22; it can not only provide effective internal support to prevent the shock-absorbing airbag 22 from being excessively deformed under pressure, but also ensure the flexibility and adaptability of the overall structure of the shoulder pad; at the same time, the open setting allows the support member 23 to have a deformation space when under pressure, so as to avoid the situation of collapse and fracture. First sliders 24 are slidably arranged on both sides of the opening of the support member 23, and the first sliders 24 are connected in series by a connecting rope 25; when the shock-absorbing airbag 22 is under abnormal pressure (such as sudden impact or long-term uneven pressure), the first sliders 24 and the connecting rope 25 jointly connect all the support members 23 to ensure the balanced force of the pressure-reducing shoulder pad 2; specifically, the sliders can slide on the support member 23, and through the action of the connecting rope 25, all the support members 23 are jointly used to share the pressure to ensure the balanced force, thereby improving the stability and comfort of the entire shoulder pad.

[0034] See Figure 4 , Figure 5 , one end of the shock-absorbing airbag 22 in its own length direction is provided with an adjusting slider 26, and the adjusting slider 26 is slidably and hermetically arranged on the shock-absorbing airbag 22 to ensure that it can slide smoothly on the shock-absorbing airbag 22 while maintaining airtightness. The adjusting slider 26 is connected to the connecting rope 25, allowing the tightness of the connecting rope 25 to be adjusted in real time according to the actual pressure situation, thereby improving the force uniformity. Limit members 27 are arranged at both ends of the adjusting slider 26 and the first slider 24 in the length direction of the shock-absorbing airbag 22; in order to prevent the first slider 24 and the adjusting slider 26 from exceeding their predetermined working ranges, limit members 27 are arranged at both ends of their respective sliding paths. It can not only prevent the components from being damaged due to excessive movement, but also ensure the efficient operation of each component within the preset range, and guarantee the stability and reliability of the entire system; the limit member 27 can be a simple baffle or a more complex locking device, which is used to limit the maximum stroke of the slider and prevent equipment damage caused by overload; the limit member 27 not only provides physical constraints for the slider, but also helps to maintain the dynamic balance within the system, ensuring that the pressure can be effectively dispersed even under extreme conditions. The sliding stroke of the first slider 24 on the support member 23 and the sliding stroke of the adjusting slider 26 on the shock-absorbing airbag 22 are restricted by the limit member 27; when the shock-absorbing airbag 22 is under abnormal pressure, by controlling the sliding stroke of the adjusting slider 26 inside the shock-absorbing airbag 22, the tightness of the connecting rope 25 is adjusted to improve the force uniformity of the pressure-reducing shoulder pad 2.

[0035] SeeFigure 3 , Figure 5 , the shoulder pad body 21 and the shock-absorbing airbag 22 are detachably connected, which is convenient for users to replace the shock-absorbing airbag 22 according to their needs; not only extends the service life of the product, but also allows users to select airbags with different characteristics (such as hardness, elasticity, etc.) according to different usage scenarios. One end of the shoulder pad body 21 adjacent to the adjustment slider 26 is provided with an adjustment component 28, the adjustment component 28 is connected to the adjustment slider 26, and the adjustment component 28 is used to control the sliding stroke of the adjustment slider 26 inside the shock-absorbing airbag 22; enabling users to manually adjust the tightness of the connecting rope 25, thereby optimizing the pressure distribution and enhancing comfort and adaptability. The adjustment component 28 includes a connecting head 281 connected to the adjustment slider 26, an adjustment member 282 rotatably arranged on the shoulder pad body 21, and a connecting member 283 is arranged between the adjustment member 282 and the connecting head 281, and the connecting member 283 is used for the transmission between the adjustment member 282 and the connecting head 281; the adjustment member 282 and the connecting member 283 are a gear and a rack; the force transmission is achieved through the cooperation of the gear and the rack. When the user rotates the adjustment member 282, the rack will drive the connecting head 281 to move, and then the adjustment slider 26 will slide along the length direction of the shock-absorbing airbag 22. The user can adjust the position of the adjustment slider 26 by rotating the adjustment member 282, thereby changing the tension of the connecting rope 25. Specifically, rotating the adjustment member 282 clockwise or counterclockwise will cause the rack to drive the connecting head 281 to move forward or backward, and the adjustment slider 26 will move accordingly.

[0036] Embodiment 2

[0037] This embodiment discloses a decompression shoulder pad 2 for the shoulder straps of a backpack. Compared with the shock-absorbing shoulder pad in Embodiment 1, this embodiment adds a handle pad 3 for linking the shock-absorbing shoulder pads on both sides of the backpack 1 to further optimize the pressure distribution and provide a more uniform and comfortable carrying experience; specifically as follows: The backpack 1 has a handle strap 12,

[0038] See Figure 1 , Figure 2 , Figure 6, the decompression shoulder pad 2 includes a handle pad 3 for connecting the decompression shoulder pad 2 on the left and right shoulder straps 11. The handle pad 3 is composed of a handle main body 31 and a handle airbag 32. The handle main body 31 is connected to the handle strap 12, and the handle airbag 32 has a connecting joint 33 connected to the decompression shoulder pad 2; the adjustment slider 26 is located at one end of the shock-absorbing shoulder pad away from the handle pad 3, mainly used to control the tightness of the connecting rope 25. A connecting slider 29 is arranged at one end of the shock-absorbing shoulder pad close to the handle pad 3. The connecting slider 29 is connected to the shock-absorbing shoulder pad by a sliding seal. The shock-absorbing airbag 22 leads out from the end where the connecting slider 29 is located to a connecting pipe 34 adapted to the connecting joint 33. The connecting pipe 34 is adapted to the connecting joint 33 on the handle airbag 32 to form a gas channel. The connecting pipe 34 has a seal 35 for controlling the on-off, and the seal 35 is connected to the connecting slider 29 through the connecting rope 25; when the shock-absorbing airbag 22 is subjected to abnormal pressure, the connecting rope 25 pulls the seal 35 to connect the connecting joint 33 and the connecting pipe 34, so that the gas in the handle airbag 32 enters the decompression shoulder pad 2 to ensure the balanced force of the decompression shoulder pad 2. The gas in the handle airbag 32 enters the shock-absorbing shoulder pad through the connecting pipe 34 to supplement the part that needs additional support due to excessive local force, thereby redistributing the pressure in the entire shoulder pad system to ensure the balanced force; when the pressure returns to normal, the seal 35 closes to cut off the gas channel and maintain the stable state of the system.

[0039] See Figure 7 , a compression spring 36 is arranged between the seal 35 and the connecting pipe 34, so that the seal 35 remains in the closed state without external force, ensuring that the gas will not flow accidentally and improving the safety of the system; the function of the compression spring 36 is to keep the seal 35 in the closed state unless sufficient external force is applied. The compression spring 36 is located on the side of the seal 35 close to the shock-absorbing shoulder pad, and the compression spring 36 and the connecting rope 25 are arranged at the same end of the seal 35; the compression spring 36 is used to control the disconnection of the connecting pipe 34, and the connecting rope 25 is used to control the conduction of the connecting pipe 34; the connecting rope 25 is used to pull the seal 35 open, so as to allow the gas to flow from the handle airbag 32 into the shock-absorbing shoulder pad. This design combines the idea of mechanical automation and can dynamically adjust the system state according to the actual pressure situation. When the connecting slider 29 moves due to pressure, it will tighten the connecting rope 25, and then pull the seal 35 to overcome the elastic force of the compression spring 36, so that the seal 35 leaves its original position and opens the channel of the connecting pipe 34. Once the pressure returns to normal, the connecting rope 25 relaxes, and the compression spring 36 pushes the seal 35 back to its original position again to close the channel of the connecting pipe 34 and restore the initial state of the system.

[0040] SeeFigure 2 The shock-absorbing shoulder pads are divided into a left shoulder pad and a right shoulder pad according to the left and right shoulder straps 11. Separate connection controls are adopted between the left shoulder pad and the handle pad 3, and between the right shoulder pad and the handle pad 3; this means that each shoulder pad has its own independent connecting pipe 34, seal 35, and related control components. The internal air pressure of the handle airbag 32 is greater than the internal air pressure of the shock-absorbing airbag 22, and when needed, gas can flow from the handle airbag 32 to the shock-absorbing airbag 22. When the left shoulder pad and the right shoulder pad are under normal stress (i.e., the pressures received by the left shoulder pad and the right shoulder pad are approximately equal), the connecting pipes 34 of the left shoulder pad and the connecting pipes 34 of the right shoulder pad are both in a disconnected state; at this time, there is no gas exchange between the handle airbag 32 and the shock-absorbing airbag 22, and their respective air pressures remain unchanged. When the left shoulder pad and the right shoulder pad are under uneven stress, the connecting pipe 34 on the shock-absorbing shoulder pad on the side with greater stress is conducted (the connecting slider 29 on this side of the shoulder pad will move due to the stress, and through the connecting rope 25, it will pull the corresponding seal 35 to overcome the resistance of the compression spring 36, making the connecting pipe 34 conductive), so that the internal gas of the handle airbag 32 moves into the shock-absorbing airbag 22 to ensure that the left shoulder pad and the right shoulder pad are under even stress.

[0041] Embodiment Three

[0042] This embodiment discloses a backpack 1 applying the decompression shoulder pad 2 described in Embodiment One, specifically as follows:

[0043] When the backpack 1 is in normal use, the shock-absorbing airbag 22 and the support member 23 ensure the balanced stress of the decompression shoulder pad 2; when abnormal pressure is received, the first slider 24 and the connecting rope 25 can combine all the support members 23 to balance the pressure received by the decompression shoulder pad 2; when it is necessary to adjust the balanced stress of the decompression shoulder pad 2, the sliding stroke of the adjustment slider 26 in the shock-absorbing airbag 22 can be controlled through the adjustment member 28 to achieve the best balanced stress state.

[0044] Embodiment Four

[0045] This embodiment discloses a backpack 1 applying the decompression shoulder pad 2 described in Embodiment Two. When the backpack 1 is in normal use, it can provide an excellent pressure distribution and can also automatically adjust in the case of uneven stress to ensure the comfort and safety of the user. Specifically as follows:

[0046] When the double - shoulder backpack 1 is in normal use, the shock - absorbing airbag 22 and the support member 23 ensure the balanced force on the pressure - reducing shoulder pad 2; the shock - absorbing airbag 22 is designed in a flattened shape and has good elasticity and adaptability, capable of quickly responding to pressure changes and providing an effective buffering effect. The support member 23 is arranged in a ring shape and has an opening. The opening side is close to the shoulder strap 11 part and is fixed on the side wall of the shock - absorbing airbag 22. The support members 23 are evenly distributed along the length direction of the shock - absorbing airbag 22. When subjected to pressure, they can keep the shape of the airbag stable and prevent excessive deformation. When it is necessary to adjust the balanced force on the pressure - reducing shoulder pad 2, the adjustment member 28 can be used to control the sliding stroke of the adjustment slider 26 in the shock - absorbing airbag 22 to achieve the best balanced - force state; the adjustment member 28 includes a connecting head 281, an adjusting member 282 rotatably arranged on the shoulder - pad main body 21, and a connecting member 283 (gear and rack) for transmitting power between the adjusting member 282 and the connecting head 281. By rotating the adjusting member 282, the user can precisely control the position of the adjustment slider 26, thereby adjusting the tightness of the connecting rope 25 and achieving the best pressure distribution. When the backpack is unevenly stressed and an abnormal pressure is applied to one side of the shock - absorbing shoulder pad, the connecting pipe 34 on that side will be conducted under the traction of the connecting rope 25, so that the gas in the handle airbag 32 flows into the shock - absorbing airbag 22, thus balancing the pressures on both sides.

[0047] In addition, as common general knowledge in this industry, the shoulder strap 11 and the handle strap 12 mentioned above. The above is common general knowledge, so the principles and structures thereof will not be described in detail herein.

[0048] Of course, the above are only typical examples of the present invention. In addition, the present invention can also have many other specific implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A decompression shoulder pad for a shoulder strap of a backpack, wherein the backpack has a shoulder strap, and the characteristics are: The decompression shoulder pad comprises a shoulder pad body connected to the shoulder strap, the shoulder pad body is provided with a shock-absorbing airbag, the length direction of the shock-absorbing airbag is the same as the length direction of the shoulder pad body, and the end surface of the shock-absorbing airbag in its width direction is flat; a support member is arranged in the shock-absorbing airbag, the length direction of the support member is the same as the width direction of the shock-absorbing airbag, and the support member is equidistantly arranged in the shock-absorbing airbag along the length direction of the shock-absorbing airbag; When the shock-absorbing airbag is subjected to pressure, the support member keeps the shape of the shock-absorbing airbag stable, thereby ensuring that the pressure on the decompression shoulder pad is balanced.

2. The decompression shoulder pad according to claim 1, characterized in that: The support member is annular in shape throughout, with an opening on one side of the support member close to the shoulder strap, and a fixed arrangement on the side wall of the shock-absorbing airbag on one side of the support member away from the shoulder strap; first sliders are slidably arranged on both sides of the opening of the support member, and the first sliders are connected in series by a connecting rope; When the shock-absorbing airbag is subjected to abnormal pressure, the first slider and the connecting rope are combined with all the supporting members to ensure that the pressure of the decompression shoulder pad is balanced.

3. The decompression shoulder pad according to claim 2, characterized in that: The shock-absorbing airbag is provided with an adjustment slider at one end in the length direction thereof, the adjustment slider is provided on the shock-absorbing airbag in a sliding and sealing manner, the adjustment slider is connected to the connecting rope, and both ends of the adjustment slider and the first slider in the length direction of the shock-absorbing airbag are provided with limiting members; The limiting member constrains the sliding stroke of the first slider on the supporting member and the sliding stroke of the adjusting slider on the shock-absorbing airbag; When the shock-absorbing airbag is subjected to abnormal pressure, the tightness of the connecting rope can be adjusted by controlling the sliding stroke of the adjusting slider inside the shock-absorbing airbag, thereby improving the force uniformity of the decompression shoulder pad.

4. The decompression shoulder pad according to claim 3, characterized in that: The shoulder pad body and the shock-absorbing airbag are detachably connected to facilitate replacement of the shock-absorbing airbag; An adjusting component is provided at one end of the shoulder pad body adjacent to the adjusting slider, the adjusting component is connected to the adjusting slider, and the adjusting component is used to control the sliding stroke of the adjusting slider inside the shock-absorbing airbag.

5. The decompression shoulder pad according to claim 4, characterized in that: The adjusting component includes a connecting head connected to the adjusting slider, and an adjusting member rotatably arranged on the shoulder pad body. A connecting member is arranged between the adjusting member and the connecting head, and the connecting member is used for transmission of the adjusting member and the connecting head; the adjusting member and the connecting member are gears and racks.

6. The decompression shoulder pad according to any one of claims 3 to 5, wherein the backpack has a handle strap, characterized in that: The decompression shoulder pad includes a handle pad used to connect the decompression shoulder pads on the left and right shoulder straps, the handle pad is composed of a handle body and a handle airbag, the handle body is connected to the handle strap, and the handle airbag has a docking joint connected to the decompression shoulder pad; The adjusting slider is located at one end of the shock-absorbing shoulder pad away from the handle pad, and a connecting slider is provided at one end of the shock-absorbing shoulder pad close to the handle pad. The connecting slider and the shock-absorbing shoulder pad are connected by a sliding seal. The shock-absorbing airbag is led out from the end where the connecting slider is located to a docking tube that is compatible with the docking joint. The docking tube is provided with a sealing member for controlling on and off, and the sealing member is connected to the connecting slider via the connecting rope. When the shock-absorbing airbag is subjected to abnormal pressure, the connecting rope pulls the sealing member to connect the docking joint and the docking tube, so that the gas in the handle airbag enters the decompression shoulder pad, ensuring that the decompression shoulder pad is subjected to balanced force.

7. The decompression shoulder pad according to claim 6, characterized in that: A compression spring is arranged between the sealing member and the docking tube, the compression spring is located on one side of the sealing member close to the shock-absorbing shoulder pad, and the compression spring and the connecting rope are arranged at the same end of the sealing member; The compression spring is used to control the disconnection of the docking tube, and the connecting rope is used to control the conduction of the docking tube.

8. The decompression shoulder pad according to claim 7, characterized in that: The shock-absorbing shoulder pad is divided into a left shoulder pad and a right shoulder pad according to the left and right shoulder straps, and the left shoulder pad and the handle pad, as well as the right shoulder pad and the handle pad, are connected and controlled separately; the internal air pressure of the handle airbag is greater than the internal air pressure of the shock-absorbing airbag; When the left shoulder pad and the right shoulder pad are stressed normally, the docking pipe of the left shoulder pad and the docking pipe of the right shoulder pad are both in a disconnected state; When the left shoulder pad and the right shoulder pad are subjected to uneven force, the docking tube on the shock-absorbing shoulder pad on the side subjected to greater force is connected, so that the internal gas of the handle airbag moves into the shock-absorbing airbag, ensuring that the left shoulder pad and the right shoulder pad are subjected to even force.

9. A backpack using the decompression shoulder pad as claimed in claim 5, characterized in that: When the backpack is in normal use, the shock-absorbing airbag and the support member ensure that the pressure-reducing shoulder pad is balanced; When subjected to abnormal pressure, the first slider and the connecting rope can combine all the supporting members to balance the pressure on the decompression shoulder pad; When the force balance of the decompression shoulder pad needs to be adjusted, the sliding stroke of the adjustment slider in the shock-absorbing airbag can be controlled by adjusting the component to achieve the best force balance state.

10. A backpack using the decompression shoulder pad according to any one of claims 6 to 8, characterized in that: When the backpack is in normal use, the shock-absorbing airbag and the support member ensure that the pressure-reducing shoulder pad is balanced; When the force balance of the decompression shoulder pad needs to be adjusted, the sliding stroke of the adjustment slider in the shock-absorbing airbag can be controlled by adjusting the components to achieve the best force balance state; When the backpack is unevenly stressed and one side of the shock-absorbing shoulder pad is subjected to abnormal pressure, the docking tube on that side will be connected under the pull of the connecting rope, allowing the gas in the handle airbag to flow into the shock-absorbing airbag, thereby balancing the pressure on both sides.

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