CN219845479U - Pressure reducing knapsack - Google Patents

Pressure reducing knapsack Download PDF

Info

Publication number
CN219845479U
CN219845479U CN202321703315.3U CN202321703315U CN219845479U CN 219845479 U CN219845479 U CN 219845479U CN 202321703315 U CN202321703315 U CN 202321703315U CN 219845479 U CN219845479 U CN 219845479U
Authority
CN
China
Prior art keywords
cushion
cushion block
groove
backpack
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202321703315.3U
Other languages
Chinese (zh)
Inventor
陈文静
张然
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Li Ning China Sports Goods Co Ltd
Original Assignee
Li Ning China Sports Goods Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Li Ning China Sports Goods Co Ltd filed Critical Li Ning China Sports Goods Co Ltd
Priority to CN202321703315.3U priority Critical patent/CN219845479U/en
Application granted granted Critical
Publication of CN219845479U publication Critical patent/CN219845479U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model relates to a pressure reducing knapsack which comprises a rear frame and a front bag, wherein a first cushion block, a second cushion block, a third cushion block, a fourth cushion block and a fifth cushion block are arranged on the rear frame in a protruding mode, the first cushion block and the second cushion block are arranged on the upper portion of the rear frame and correspond to a left side scapula part and a right side scapula part of a human body respectively, the third cushion block and the fourth cushion block are arranged in the middle of the rear frame and correspond to a left half part and a right half part of the back of the human body respectively, the fifth cushion block is arranged on the lower portion of the rear frame and is arranged below the third cushion block and the fourth cushion block and corresponds to the waist of the human body. The decompression backpack disclosed by the utility model can prevent C-shaped and S-shaped lateral bending of the spine, has a good air circulation flow structure, and has excellent heat conduction and heat dissipation functions.

Description

Pressure reducing knapsack
Technical Field
The utility model relates to the field of backpacks, in particular to a pressure-reducing backpack.
Background
Backpack is a common backpack style, and particularly for students in growing up and developing groups, the backpack is usually used as a schoolbag. When the weight of the backpack is increased to a certain degree, the backpack can deform, so that the gravity center of the backpack cannot be controlled, and the overweight backpack can pull the shoulders of a human body backwards, so that the upper half body can unconsciously tilt forwards, and the human body can generate a humpback and poor chest-containing posture over time. In addition, backpack deformation, center of gravity shifting can also result in unbalanced pressure on both sides of the body, and prolonged pressure imbalance can cause scoliosis and high-low shoulder problems, especially for students whose bones are not yet shaped, which can be irreversible.
In order to protect the spine of a human body, the existing backpack is generally provided with a backboard structure with a buffering function on one side close to the back of the human body, so that the backboard is abutted against the waist and the whole back area of the human body, and the function of protecting the spine is further realized.
However, this backpack structure may result in poor heat dissipation of the back of the backpack, and may not sufficiently disperse the pressure of the backpack to the back and the spine of the human body, which is not beneficial to protecting the health of the human body and is not comfortable.
Disclosure of Invention
The utility model aims to provide a pressure-reducing knapsack, which is characterized in that five convex elastic cushion blocks are arranged on the rear panel of the knapsack, and a groove structure for promoting air circulation flow is formed between the cushion blocks, so that the protection of a spine and the heat dissipation of the back are realized. The specific technical scheme is as follows:
the utility model provides a decompression knapsack, including back frame and preceding bag, the protrusion is provided with first cushion, the second cushion, the third cushion, fourth cushion and fifth cushion on the back frame, first cushion and second cushion are located the upper portion of back frame, correspond the left side scapula position and the right side scapula position setting of human body respectively, third cushion and fourth cushion are located the middle part of back frame, correspond the left half and the right half setting of human back respectively, the fifth cushion sets up the lower part at the back frame, be located the below of third cushion and fourth cushion, correspond human waist setting.
Further, the first cushion block, the second cushion block, the third cushion block, the fourth cushion block and the fifth cushion block are distributed in a star-shaped structure on the rear frame, a groove structure is formed among the first cushion block, the second cushion block, the third cushion block, the fourth cushion block and the fifth cushion block, and the groove structure is arranged in an outward extending mode along the direction of a parting line of the middle area of the star-shaped structure by taking the midpoint of the star-shaped structure as the center.
Further, a first groove is formed between the first cushion block and the second cushion block, a fourth groove is formed between the third cushion block and the fourth cushion block, the first groove and the fourth groove are communicated with each other, and the first groove and the fourth groove are arranged at positions corresponding to the spine of the human body, so that a hollow structure is formed at the positions of the rear panel of the backpack corresponding to the spine of the human body.
Further, a second groove is formed between the third cushion block and the first cushion block, the second groove takes the midpoint of the star-shaped structure as a starting point, and extends outwards and downwards, a third groove is formed between the fourth cushion block and the second cushion block, and the third groove takes the midpoint of the star-shaped structure as a starting point, and extends outwards and downwards.
Further, a fourth groove is formed between the third cushion block and the fourth cushion block, and the width of the fourth groove is gradually narrowed from top to bottom in the vertical direction.
Further, a fifth groove is formed between the fifth cushion block and the third cushion block, a sixth groove is formed between the fifth cushion block and the fourth cushion block, the fifth groove and the sixth groove are symmetrically arranged along the central line of the back panel of the backpack in the vertical direction, the central line is used as a starting point to extend outwards and downwards in an inclined mode, and the bottom edge of the fifth cushion block is close to the lower end face of the back panel.
Further, the first cushion block, the second cushion block, the third cushion block and the fourth cushion block have a protrusion height at a region near the human spine greater than a protrusion height at a region far from the human spine.
Further, the protruding height of the upper portion of the fifth pad is greater than the protruding height of the lower portion.
Further, first cushion, second cushion, third cushion, fourth cushion and fifth cushion are including overlapping the first top layer, first supporting surface layer and the first bottom that set up, and first top layer is located the cushion and keeps away from the one side of knapsack back margin, and first bottom is located the cushion and the one side that the knapsack back margin was connected, and first supporting surface layer is located between first top layer and the first bottom.
Further, a brace structure is arranged on the rear panel, a second braid and a second eye-splice structure are arranged between the two brace structures, and the second braid is connected with the two brace structures through the second eye-splice structure; the waist both sides of knapsack back panel are equipped with the flap, and the flap includes to protect subsides, third meshbelt and third eye-splice structure, and the third meshbelt sets up in the outside of protecting subsides, connects the third meshbelt through third eye-splice structure.
The pressure reducing knapsack of the utility model has the following advantages:
1. cushion blocks are arranged on the rear panel of the backpack corresponding to the positions of shoulder blades, back and waist of a human body, and the five cushion blocks are symmetrically distributed on two sides of a spine, so that the stress on the two sides of the spine is the same, and the effects of preventing C-shaped and S-shaped lateral bending of the spine are achieved;
2. a plurality of groove structures are formed among the cushion blocks, and the groove structures are communicated with each other to form a good air circulation flow structure, so that the backpack has excellent heat conduction and heat dissipation functions;
3. the groove structure is arranged corresponding to the spine so as to realize the hollow protection effect on the spine of the human body and reduce the stress of the spine;
4. the cushion blocks, the buffer belts and the wings of the backpack support and disperse the gravity of the backpack together, so that the backpack can be efficiently depressurized, the shoulders and the waist can be protected, the burden of the shoulders and the waist can be lightened, and the pressure carried for a long time can be relieved.
Drawings
Fig. 1 is a schematic view of the structure of the front bag side of the pressure-reducing backpack according to the present utility model.
FIG. 2 is a schematic view of the back panel of the pressure-reducing backpack of the present utility model.
FIG. 3 is a schematic view of the structure of a pad on the back plate of the pressure-reducing backpack according to the present utility model
Fig. 4 is a schematic view of the structure of the rear side of the pressure-reducing backpack of the present utility model.
Detailed Description
For a better understanding of the objects, structures and functions of the present utility model, a further detailed description of the pressure relief backpack of the present utility model is provided below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the pressure-reducing backpack of the present utility model includes a rear panel 200 and a front bag 100, wherein the rear panel 200 has a plate-shaped structure disposed near the back of a human body, and is capable of supporting the backpack so as to maintain the basic configuration of the backpack, and the front bag 100 is connected to the side of the rear panel 200 far from the back of the human body, and the front bag 100 is capable of storing articles therein. The back panel 200 is equipped with backplate and braces structure 6 near the one side of human back, and the backplate protrusion is set up in the surface of back panel 200, adopts elastic material to make, can produce good cushioning effect to human back, and braces structure 6 can overlap and establish in human shoulder position department, makes the knapsack stable bear on human back.
Specifically, as shown in fig. 2, the back plate includes a first cushion block 1, a second cushion block 2, a third cushion block 3, a fourth cushion block 4 and a fifth cushion block 5, and a central line of the rear frame 200 in the vertical direction is defined as a first central line 7, so that the first cushion block 1 and the second cushion block 2 are symmetrically distributed relative to the first central line 7, and the first cushion block 1 and the second cushion block 2 are located at the upper part of the rear frame 200 and are respectively arranged corresponding to a left scapula part and a right scapula part of a human body. The third cushion block 3 and the fourth cushion block 4 are symmetrically distributed relative to the first central line 7, and the third cushion block 3 and the fourth cushion block 4 are positioned in the middle of the rear frame 200 and respectively correspond to the left half part and the right half part of the back of the human body.
The third cushion block 3 is positioned right below the first cushion block 1, and the fourth cushion block 4 is positioned right below the second cushion block 2. The fifth cushion block 5 is arranged at the lower part of the rear panel 200 and is positioned below the third cushion block 3 and the fourth cushion block 4, and is arranged corresponding to the waist of a human body, and the first central line 7 coincides with the central line of the fifth cushion block 5.
According to the pressure-reducing knapsack disclosed by the utility model, the cushion pads are respectively arranged in five areas of the knapsack rear frame 200 corresponding to the left side scapula part, the right side scapula part, the left half part and the right half part of the back part and the waist part of the human body, so that when the human body carries the knapsack, the two sides of the spine of the human body are uniformly stressed, and the parts of the back of the human body, which need to be supported, can ensure enough supporting force.
Further, as shown in fig. 2, five cushion blocks are arranged in a star structure on the rear panel 200, a center point of the star structure is defined as a middle point a, the middle point a passes through the first center line 7, a groove structure is formed among the first cushion block 1, the second cushion block 2, the third cushion block 3, the fourth cushion block 4 and the fifth cushion block 5, and the groove structure is arranged in an outward extending manner along a parting line direction of a middle area of the star structure by taking the middle point a of the star structure as a center, so that the rear panel 200 of the backpack has excellent heat conductivity and heat dissipation.
Further, a first groove is formed between the first cushion block 1 and the second cushion block 2, a fourth groove is formed between the third cushion block 3 and the fourth cushion block 4, the first groove and the fourth groove are mutually communicated, and the first groove and the fourth groove are arranged at the position corresponding to the spine of the human body, so that the rear panel 200 of the backpack and the position corresponding to the spine of the human body form a hollow structure, and the stress of the spine is reduced.
Specifically, the first cushion block 1 and the second cushion block 2 have a trapezoid structure. The first pad 1 comprises a first side edge arranged close to the first centre line 7 and a second side edge arranged close to the third pad 3, wherein the first side edge extends along the vertical direction, and the second side edge extends outwards and obliquely downwards along the midpoint A of the star-shaped structure. The second head block 2 comprises a third side edge arranged close to the first central line 7, which is parallel to the first side edge, and a fourth side edge arranged close to the fourth head block 4, which extends obliquely downwards outwards along the midpoint a of the star-shaped structure. A first groove is formed between the third side edge and the first side edge, and the extending direction of the first groove is a vertical direction.
The second cushion block 2 has the same structural shape as the first cushion block 1, so that forces applied to scapula areas on both sides of a human body are kept consistent.
Specifically, the third pad 3 and the fourth pad 4 have a parallelogram structure. The third cushion block 3 comprises a fifth side edge which is arranged close to the first cushion block 1, the fifth side edge is arranged in parallel with the second side edge, a second groove is formed between the second side edge and the fifth side edge, and the second groove takes the midpoint A of the star-shaped structure as a starting point and extends outwards and downwards in an inclined manner. The fourth cushion block 4 comprises a seventh side edge which is arranged close to the second cushion block 2, the fourth side edge is arranged in parallel with the seventh side edge, a third groove is formed between the fourth side edge and the seventh side edge, and the third groove extends outwards and downwards in an inclined manner from the midpoint A of the star-shaped structure.
Specifically, the third cushion block 3 includes a sixth side edge disposed near the fourth cushion block 4, and the sixth side edge is disposed obliquely in the vertical direction, and gradually approaches the first center line 7 from top to bottom. The fourth cushion block 4 comprises an eighth side edge which is arranged close to the third cushion block 3, and the eighth side edge is obliquely arranged in the vertical direction and gradually approaches the first central line 7 from top to bottom.
A fourth groove is formed between the eighth side edge and the sixth side edge, and the third cushion block 3 and the fourth cushion block 4 are symmetrically distributed relative to the first central line 7, so that the width of the fourth groove is gradually narrowed from top to bottom along the first central line 7.
Specifically, the shape of the fifth cushion block 5 is isosceles triangle, a fifth groove is formed between the fifth cushion block 5 and the third cushion block 3, a sixth groove is formed between the fifth cushion block 5 and the fourth cushion block 4, the fifth groove and the sixth groove are symmetrically distributed along the first central line 7, and extend outwards and are obliquely downwards by taking the first central line 7 as a starting point. The bottom edge of the fifth block 5 is disposed near the lower end surface of the rear panel 200.
The groove structures are communicated with each other and are distributed along the extending direction of the star structure, so that the efficient heat conduction and heat dissipation functions of the pressure reducing knapsack can be realized; the first groove and the fourth groove are arranged in the area where the human spine is located, so that the spine is not in direct contact with the backpack, the stress of the spine is reduced, and the hollow protection effect on the spine is realized.
Further, the thicknesses of the first cushion block 1, the second cushion block 2, the third cushion block 3 and the fourth cushion block 4 near the side of the first central line 7 are larger, namely the protruding heights of the first cushion block 1, the second cushion block 2, the third cushion block 3 and the fourth cushion block 4 at the position near the spine of the human body are larger than those of the region far away from the spine of the human body. The protruding height of the upper part of the fifth cushion block 5 is larger than that of the lower part.
The convex structures of the cushion blocks enable the pressure reducing knapsack to be more in accordance with the ergonomic design, the cushion block structures are highly attached to shoulder blades, backs and waists of human bodies, meanwhile, the supporting force of the cushion block structures close to the spinal column is stronger, the pressure applied to the spinal column is reduced, and abnormal deformation of the spinal column is prevented.
Further, as shown in fig. 3, the fabrics of the first cushion block 1, the second cushion block 2, the third cushion block 3, the fourth cushion block 4 and the fifth cushion block 5 are formed into a sandwich net structure, and the sandwich net structure comprises a first surface layer 81, a first supporting surface layer 82 and a first bottom layer 83 which are overlapped. The first surface layer 81 is a surface of the pad away from the back panel 200, the first bottom layer 83 is a surface of the pad connected to the back panel 200, and the first support surface layer 82 is located between the first surface layer 81 and the first bottom layer 83. The material of the first surface layer 81 is sandwich net material, and has higher heat conducting property.
The first supporting surface layer 82 and the first bottom layer 83 are preferably made of polyester fiber, high-density cotton and non-woven fabric, and are covered with woven belts, so that the cushion block has higher buffering effect, and excellent buffering and damping effects are realized on corresponding contact points of the back of a human body.
As shown in fig. 4, the harness structure 6 includes a cushion belt 61, a first webbing 62, and a first buckle structure 63, wherein an upper end of the cushion belt 61 is fixed to an upper end portion of the rear panel 200, a lower end of the cushion belt 61 is connected to the first webbing 62, a lower end of the first webbing 62 is fixed to both sides of a waist portion of the rear panel 200, and the first webbing 62 is connected to the cushion belt 61 by the first buckle structure 63. The strap structure 6 of the pressure reducing backpack of the present utility model is adjustable and can accommodate ergonomic shapes of different groups.
The buffer band 61 of the back strap structure 6 comprises a second surface layer 611, a second supporting surface layer 612 and a second bottom layer 613, wherein the second surface layer 611 is arranged on the side far away from the human body, the material is preferably polyester fiber, and the second supporting surface layer 612 and the second bottom layer 613 are preferably made of TPE polymer foaming elastomer material. The shoulder strap structure of the backpack can buffer the impact force applied to the shoulders and the back of a human body and has higher heat conducting performance.
Be equipped with second meshbelt 64 and second eye-splice structure 65 between the braces structure 6, second meshbelt 64 passes through two braces structures 6 of second eye-splice structure 65 connection, makes the knapsack when being carried, laminates in the human body more, further carries out the partial pressure to the pressure that receives.
The waist both sides of the back panel 200 are provided with the protection wings, the protection wings comprise a protection patch 91, a third woven belt 92 and a third eye-splice structure 93, the third woven belt 92 is arranged on the outer side of the protection patch 91, and the third woven belt 92 is connected through the third eye-splice structure 93, so that the third woven belt 92 can correspond to different people to realize different size constraints, and then the protection patch is attached to the waist of a human body to realize partial pressure stress on the waist of the human body.
The pressure reducing knapsack of the utility model has the following advantages:
1. cushion blocks are arranged on the rear panel 200 of the backpack corresponding to the positions of shoulder blades, back and waist of a human body, and the five cushion blocks are symmetrically distributed on two sides of a spine, so that the stress on the two sides of the spine is the same, and the effects of preventing C-shaped and S-shaped lateral bending of the spine are achieved;
2. a plurality of groove structures are formed among the cushion blocks, and the groove structures are communicated with each other to form a good air circulation flow structure, so that the backpack has excellent heat conduction and heat dissipation functions;
3. the groove structure is arranged corresponding to the spine so as to realize the hollow protection effect on the spine of the human body and reduce the stress of the spine;
4. the cushion blocks, the buffer belts and the wings of the backpack support and disperse the gravity of the backpack together, so that the backpack can be efficiently depressurized, the shoulders and the waist can be protected, the burden of the shoulders and the waist can be lightened, and the pressure carried for a long time can be relieved.
The utility model has been further described with reference to specific embodiments, but it should be understood that the detailed description is not to be construed as limiting the spirit and scope of the utility model, but rather as providing those skilled in the art with the benefit of this disclosure with the benefit of their various modifications to the described embodiments. The individual technical features described in the above embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, various possible combinations of embodiments of the present utility model are not described in detail.
If directional indications (such as up, down, left, right, front, and rear … …) are involved in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture is changed, the directional indications are correspondingly changed.

Claims (10)

1. The utility model provides a decompression knapsack, includes back frame and preceding bag, its characterized in that, the protrusion is provided with first cushion, second cushion, third cushion, fourth cushion and fifth cushion on the back frame, first cushion and second cushion are located the upper portion of back frame, correspond the left side scapula position and the right side scapula position setting of human body respectively, third cushion and fourth cushion are located the middle part of back frame, correspond the left half and the right half setting of human back respectively, the fifth cushion sets up the lower part at the back frame, be located the below of third cushion and fourth cushion, correspond the human waist setting.
2. The pressure-reducing backpack of claim 1, wherein the first cushion, the second cushion, the third cushion, the fourth cushion and the fifth cushion are arranged in a star-shaped structure on the rear panel, a groove structure is formed among the first cushion, the second cushion, the third cushion, the fourth cushion and the fifth cushion, and the groove structure is arranged in an outward extending manner along the dividing line direction of the middle area of the star-shaped structure by taking the midpoint of the star-shaped structure as the center.
3. The pressure-reducing backpack of claim 2, wherein a first groove is formed between the first cushion block and the second cushion block, a fourth groove is formed between the third cushion block and the fourth cushion block, the first groove and the fourth groove are mutually communicated, and the first groove and the fourth groove are arranged at positions corresponding to the spinal column of the human body, so that the rear panel of the backpack forms a hollow structure with the positions corresponding to the spinal column of the human body.
4. The pressure-reducing backpack of claim 2, wherein a second groove is formed between the third cushion block and the first cushion block, the second groove extends outwards and downwards with a midpoint of the star-shaped structure as a starting point, a third groove is formed between the fourth cushion block and the second cushion block, and the third groove extends outwards and downwards with a midpoint of the star-shaped structure as a starting point.
5. The pressure-reducing backpack of claim 2, wherein a fourth groove is formed between the third pad and the fourth pad, the width of the fourth groove being gradually narrowed from top to bottom in the vertical direction.
6. The pressure-reducing backpack of claim 2, wherein a fifth groove is formed between the fifth cushion block and the third cushion block, a sixth groove is formed between the fifth cushion block and the fourth cushion block, the fifth groove and the sixth groove are symmetrically arranged along the central line of the rear panel of the backpack in the vertical direction and extend outwards and downwards with the central line as a starting point, and the bottom edge of the fifth cushion block is arranged near the lower end surface of the rear panel.
7. The reduced pressure backpack of claim 1, wherein the first cushion, the second cushion, the third cushion, and the fourth cushion have a protrusion height at an area proximate the human spine that is greater than a protrusion height at an area distal from the human spine.
8. The pressure-reducing backpack of claim 1 or 7, wherein the upper portion of the fifth head block has a projection height greater than the projection height of the lower portion.
9. The reduced-pressure backpack of claim 1, wherein the first, second, third, fourth, and fifth pods comprise a first skin layer, a first support surface layer, and a first bottom layer that are disposed in overlapping relation, the first skin layer being positioned on a side of the pods remote from the back panel of the backpack, the first bottom layer being positioned on a side of the pods connected to the back panel of the backpack, the first support surface layer being positioned between the first skin layer and the first bottom layer.
10. The pressure-reducing backpack of claim 1, wherein a strap structure is provided on the rear panel, a second webbing and a second eye-splice structure are provided between the two strap structures, the second webbing connecting the two strap structures through the second eye-splice structure; the waist both sides of knapsack back panel are equipped with the flap, and the flap includes to protect subsides, third meshbelt and third eye-splice structure, and the third meshbelt sets up in the outside of protecting subsides, connects the third meshbelt through third eye-splice structure.
CN202321703315.3U 2023-07-01 2023-07-01 Pressure reducing knapsack Active CN219845479U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321703315.3U CN219845479U (en) 2023-07-01 2023-07-01 Pressure reducing knapsack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321703315.3U CN219845479U (en) 2023-07-01 2023-07-01 Pressure reducing knapsack

Publications (1)

Publication Number Publication Date
CN219845479U true CN219845479U (en) 2023-10-20

Family

ID=88347897

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321703315.3U Active CN219845479U (en) 2023-07-01 2023-07-01 Pressure reducing knapsack

Country Status (1)

Country Link
CN (1) CN219845479U (en)

Similar Documents

Publication Publication Date Title
CA2261672C (en) Internal frame pack with load-responsive spring rods
US5590826A (en) Protector
US7819831B2 (en) Devices for alleviating back strain and back pain
US10154697B2 (en) Neck supporter
US20140215688A1 (en) Head and neck stabilizer for travel
EP2422642B1 (en) Bag with self-adjusting straps
CN104703508A (en) Compression system for backpack
US20040134955A1 (en) Pack supporting ventilation system
US7726530B1 (en) Ergonomic backpack
US20190038006A1 (en) A Posture Support
JP3811066B2 (en) Shoulder strap cushion
JP6407392B1 (en) Waist supporter
RO131609A2 (en) E-chair
US20030000985A1 (en) Posture pack TM - posture friendly backpack
CN219845479U (en) Pressure reducing knapsack
US20090179057A1 (en) Posture supporting backpack
JPH08336421A (en) Rucksack
CN214677994U (en) Schoolbag with unload power function
CN213849675U (en) Healthy hip-fitting cushion
CN2879771Y (en) Multi-functional school bag with function for reducing load on user's shoulder
CN209884451U (en) Novel correction belt
EP2312972A1 (en) Ergonomic backpack
CN218185966U (en) Bendable resin back cushion for seat
CN219556602U (en) Backpack
CN220327559U (en) Correcting clothes for preventing humpback and containing chest

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant