Exoskeleton back frame

Abstract

The utility model relates to an exoskeleton back frame. The exoskeleton back frame comprises a back plate main body and a leg bandage fixing block, the back plate main body is provided with two waist bandage fixing grooves which are arranged at an interval; the leg bandage fixing block is arranged on the back plate body in a protruding mode and located between the two waist bandage fixing grooves, and the leg bandage fixing block is provided with a leg bandage fixing hole. According to the exoskeleton back frame, the leg bandage fixing blocks are arranged on the back plate body in the protruding mode, and the leg bandage fixing holes are formed in the leg bandage fixing blocks; the situation that the strength of the periphery of the leg bandage fixing hole in the backboard body is reduced due to the fact that the leg bandage fixing hole in an opening form is formed between the two waist bandage fixing grooves in the backboard body can be avoided, it can be guaranteed that the backboard body cannot be broken after a user bends down frequently, and the resistance function can be normally provided for the user; and accidental injury to the body of the user can be avoided.

Description

Technical Field

[0001] This application relates to the field of mechanical joint technology, and in particular to an exoskeleton back frame. Background Technology

[0002] As a high-frequency bending assistance product, exoskeleton back frames can provide some assistance to users when they frequently bend over, reducing lumbar muscle strain. However, existing exoskeleton back frames typically have leg strap fixing holes between the two lumbar strap fixing slots for leg straps to pass through and fix. This makes the design of the exoskeleton back frame unreasonable. When the user bends over frequently, the leg strap fixing holes are prone to breakage. This not only causes the assistive product to fail instantly, seriously hindering the user's work or life, but may even cause accidental injury to the user due to the sudden failure of the back frame. Utility Model Content

[0003] Therefore, it is necessary to provide an exoskeleton back frame to address the technical problem that the exoskeleton back frame is prone to breakage when the user bends over frequently.

[0004] An exoskeleton back brace, comprising:

[0005] The back panel body has two spaced-apart waist strap fixing grooves; and

[0006] The leg strap fixing block protrudes from the back panel body and is located between the two waist strap fixing slots. The leg strap fixing block has leg strap fixing holes.

[0007] This exoskeleton back frame, by featuring protruding leg strap fixing blocks and leg strap fixing holes on the main body of the back panel, avoids the reduction in strength around the leg strap fixing holes that would occur with open-type leg strap fixing holes between the two waist strap fixing slots. This ensures that the main body of the back panel will not break after frequent bending over by the user, providing normal resistance while preventing accidental injury to the user. In other words, by changing the way the leg strap fixing holes are located on the main body of the back panel, this exoskeleton back frame effectively prevents the main body of the back panel from breaking after frequent bending over by the user, providing normal assistive function while preventing accidental injury to the user.

[0008] In one embodiment, the leg strap fixing block is integrally formed with the back panel body.

[0009] The above settings ensure the connection strength between the leg strap fixing block and the back panel, preventing the leg strap fixing block from falling off the back panel after the user frequently bends over. This not only provides normal assistive function for the user but also avoids accidental injury to the user's body.

[0010] In one embodiment, the leg strap fixing hole and the back plate body are spaced apart by a distance H in the direction in which the leg strap fixing block protrudes from the back plate body.

[0011] With the above configuration, the leg strap fixing holes are formed in the middle of the leg strap fixing block, rather than on the surface of the leg strap fixing block facing the back panel body. That is, the leg strap fixing holes are not formed by the leg strap fixing block and the back panel body. This increases the contact area between the leg strap fixing block and the back panel body, increases the connection strength between the leg strap fixing block and the back panel body, and effectively prevents the leg strap fixing block from falling off the back panel body after the user frequently bends over.

[0012] In one embodiment, the height L1 of the leg strap fixing block protruding from the back plate body is 10mm~15mm; and / or, the length L2 of the leg strap fixing block in the direction of extension of the leg strap fixing hole is 25mm~35mm; and / or, the length L3 of the leg strap fixing block perpendicular to the direction of extension of the leg strap fixing hole is 45mm~55mm.

[0013] The above setup facilitates the insertion of leg straps and ensures the connection strength between the leg strap fixing block and the back panel body.

[0014] In one embodiment, the width W1 of the waist strap fixing groove is 6mm to 8mm; and / or, the length W2 of the waist strap fixing groove is 80mm to 90mm.

[0015] The above setup facilitates the insertion of waist straps and ensures that the waist straps are of sufficient size to support the force on the user's waist, thus guaranteeing the normal use of the exoskeleton back brace.

[0016] In one embodiment, the waist strap fixing groove is inclined relative to the central axis of the leg strap fixing hole.

[0017] By setting it as described above, the dimensions of the backplate body in the direction of the leg strap fixing holes can be reduced, which can further reduce the weight of the backplate body.

[0018] In one embodiment, the backplate body further has a shoulder strap fixing area, and the backplate body has a plurality of first weight-reducing holes in the shoulder strap fixing area.

[0019] With the above settings, the weight of the backplate body can be further reduced, achieving lightweight exoskeleton back frame.

[0020] In one embodiment, the backplate body further has a non-stress concentration area located between the shoulder strap fixing area and the waist strap fixing groove, and the backplate body has a second weight reduction hole in the non-stress concentration area.

[0021] With the above settings, the weight of the backplate body can be further reduced, achieving lightweight exoskeleton back frame.

[0022] In one embodiment, the diameter of the first weight-reducing hole and / or the second weight-reducing hole is 5mm to 9mm; the distance between two adjacent first weight-reducing holes and / or two adjacent second weight-reducing holes is 5mm to 10mm.

[0023] By adopting the above settings, the strength of the back panel body in the shoulder strap fixing area and / or non-stress concentration area can be effectively guaranteed, and the weight of the back panel body can also be effectively reduced.

[0024] In one embodiment, the backplate body has a recessed mounting groove in the area where the shoulder strap is fixed.

[0025] With the above configuration, the end of the shoulder strap mounting plate can be accommodated in the mounting groove, preventing the end of the shoulder strap mounting plate from protruding from the back panel body and scratching the user. It also eliminates the need to increase the thickness of the back panel body in the shoulder strap fixing area to create the mounting groove, thus reducing the weight of the back panel body. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of an existing exoskeleton scaffold.

[0027] Figure 2 This is a schematic diagram of the main structure of the backplate of an existing exoskeleton frame.

[0028] Figure 3 This is a schematic diagram of the structure of an exoskeleton frame provided in an embodiment of this application.

[0029] Figure 4 for Figure 3 A schematic diagram of the leg strap fixing block of the provided exoskeleton frame.

[0030] The labels in the attached diagram are explained as follows:

[0031] 10' Existing exoskeleton frame; 100' Backplate main body; 110' Waist strap fixing groove; 120' Leg strap fixing hole; 130' Circumferential post; 200' Shoulder strap; 210' Shoulder strap mounting plate; 300' Waist strap; 400' Leg strap; 10. Exoskeleton frame of this application; 100 Backplate main body; 110 Waist strap fixing groove; 120 First weight reduction hole; 130 Second weight reduction hole; 140 Mounting hole; 150 First leg strap auxiliary fixing hole; 160 Second leg strap auxiliary fixing hole; 170 Circumferential post; 200 Leg strap fixing block; 210 Leg strap fixing hole; A. Stress-bending area; B. Shoulder strap fixing area; C. Non-stress concentration area; M. Central axis of the leg strap fixing hole. Detailed Implementation

[0032] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0033] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0034] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0038] In modern work and life scenarios, many industries, such as logistics and handling, production and assembly, and agricultural labor, involve operators frequently bending over. When operators are in this high-intensity bending work mode for a long time, their lumbar muscles are easily damaged due to excessive load. The emergence of exoskeleton back braces provides an effective solution to alleviate this problem.

[0039] When operators frequently bend over, the exoskeleton back frame can provide some assistance for the operators to stand up, which reduces the risk of lumbar muscle strain and allows the operators to maintain a relatively relaxed physical state during long periods of bending over.

[0040] like Figure 1As shown, a traditional exoskeleton back frame 10' includes a backplate body 100', shoulder straps 200', waist straps 300', and leg straps 400'; the shoulder straps 200' are mounted on the backplate body 100' via shoulder strap mounting plates 210', and the waist straps 300' are threaded through and fixed to waist strap fixing grooves 110' on the backplate body 100' (see...). Figure 2 The leg straps 400' are inserted through and secured to the leg strap fixing holes 120' on the back panel body 100' (see...). Figure 2 The user wears the shoulder strap 200', waist strap 300', and leg strap 400' on their shoulders, waist, and legs respectively.

[0041] When a user frequently bends over, their back and legs exert force. The force from the back acts on the shoulder strap mounting plate 210', which is in contact with the user's back. The shoulder strap mounting plate 210' absorbs this force due to deformation, resulting in only a small portion of the force being transmitted to the backrest body 100'. The force from the legs is directly transmitted to the backrest body 100' through the leg straps 400'. This means that the force on the backrest body 100' primarily comes from the user's legs, making it prone to bending around the leg strap fixing holes 120'. Figure 2 The area enclosed by the dashed line is the stress-bending area of ​​the 100' main body of the back panel. However, as... Figure 2 As shown, the leg strap fixing holes 120' of the existing exoskeleton back frame 10' are generally designed as open, and a winding post 130' is erected above the opening to facilitate the wrapping of the leg straps 400' in the leg strap fixing holes 120'. However, the design of this opening not only weakens the strength around the leg strap fixing holes 120' on the back plate body 100', but also causes stress concentration, making the area around the leg strap fixing holes 120' prone to cracking.

[0042] In response, this application changes the way the leg strap fixing holes are formed on the back panel body. A leg strap fixing block is protruding on the back panel body and a leg strap fixing hole is provided on the leg strap fixing block. This avoids the reduction in strength around the leg strap fixing holes on the back panel body due to the open-shaped leg strap fixing holes between the two waist strap fixing grooves. This ensures that the back panel body will not break after the user bends over frequently, thus providing normal assistive function for the user and preventing accidental injury to the user's body.

[0043] like Figure 3 As shown, one embodiment of this application provides an exoskeleton back brace 10, which can be worn by the user. When the user frequently bends over, the exoskeleton back brace 10 can provide some assistance to the user in getting up and reduce the user's lumbar muscle strain.

[0044] The exoskeleton back frame 10 includes a backplate body 100, waist straps, leg straps, and shoulder straps. The backplate body 100 is mainly used to secure the waist straps, leg straps, and shoulder straps, and its material can be carbon fiber composite material. Carbon fiber composite material is a high-performance material with carbon fiber as the reinforcing phase and resin as the matrix phase. It not only has extremely high strength—its tensile strength is higher than that of steel—but also very low density, making the backplate body 100 made of carbon fiber composite material very lightweight. It can provide good support for the user while adding almost no extra burden.

[0045] like Figure 3 As shown, the back panel body 100 has two spaced-apart waist strap fixing slots 110. The two waist strap fixing slots 110 are located on both sides of the back panel body 100. Two waist straps can also be provided, with the middle of each waist strap wrapped around the corresponding waist strap fixing slot 110, and the ends connected to the other waist strap via buckles, facilitating the wearing and removal of the exoskeleton back frame.

[0046] like Figure 3 As shown, the back panel body 100 also has a shoulder strap fixing area B, and a shoulder strap mounting plate is installed in the shoulder strap fixing area B. The shoulder strap mounting plate can be connected to the back panel body 100 in a detachable manner such as snap-fit ​​or screw-fit, making it easy to replace the back panel body 100 or the shoulder strap mounting plate. The back panel body 100 has mounting holes 140 in the shoulder strap fixing area B, and threaded parts (such as screws) can be inserted through the mounting holes 140 to connect the back panel body 100 to the shoulder strap mounting plate.

[0047] The back panel body 100 has a recessed mounting groove in the shoulder strap fixing area B. The end of the shoulder strap mounting plate can be accommodated in the mounting groove, preventing the end of the shoulder strap mounting plate from protruding from the back panel body 100 and scratching the user. It also eliminates the need to increase the thickness of the back panel body 100 in the shoulder strap fixing area B to create the mounting groove, thus reducing the weight of the back panel body 100.

[0048] like Figure 3 and Figure 4 As shown, the exoskeleton back frame 10 also includes leg strap fixing blocks 200. The leg strap fixing blocks 200 protrude from the back panel body 100 and are located between two waist strap fixing grooves 110. The leg strap fixing blocks 200 have leg strap fixing holes 210. When the user frequently bends over, a stress-bending area A is formed around the leg strap fixing blocks 200. It should be noted that... Figure 3 The area enclosed by the dashed line represents region A, which is subjected to bending under stress.

[0049] The middle portion of the leg strap is wrapped around the leg strap fixing hole 210, while the two ends of the leg strap are worn on the user's legs. To improve the connection strength between the leg strap and the back panel body 100, an auxiliary leg strap fixing hole can be added below the leg strap fixing block 200, and the middle portion of the leg strap can also be wrapped around the auxiliary leg strap fixing hole. As an example, such as Figure 3 As shown, the back panel body 100 has a first leg strap auxiliary fixing hole 150 and two second leg strap auxiliary fixing holes 160 on the side of the leg strap fixing block 200 opposite to the shoulder strap fixing area B. The two second leg strap auxiliary fixing holes 160 are located on both sides of the first leg strap auxiliary fixing hole 150 and are positioned relative to the central axis M of the leg strap fixing hole 210 (see...). Figure 4 The design is tilted. There are no specific restrictions on the opening form of the first leg strap auxiliary fixing hole 150 and the two second leg strap auxiliary fixing holes 160, as long as it does not affect the insertion and fixing of the leg straps. For example, the first leg strap auxiliary fixing hole 150 is set in an open form and is placed on the support post 170 above it, and the second leg strap auxiliary fixing hole 160 is set in an open form.

[0050] This application eliminates the need for an open leg strap fixing hole 210 on the back panel body 100 by creating a leg strap fixing hole 210 on the leg strap fixing block 200. This effectively fills in the existing leg strap fixing holes 210 on the back panel body 100, preventing the strength of the back panel body 100 from being reduced due to the open leg strap fixing holes 210 between the two waist strap fixing grooves 110. This ensures the strength of the back panel body 100 in the bending area A, preventing cracks or even breakage in the bending area A.

[0051] As can be seen, the exoskeleton back frame 10 provided in this application, by providing a leg strap fixing block 200 protruding on the back plate main body 100 and setting a leg strap fixing hole 210 on the leg strap fixing block 200, can avoid the reduction of the strength around the leg strap fixing hole 210 on the back plate main body 100 due to the leg strap fixing hole 210 being an open form between the two waist strap fixing grooves 110. This ensures that the back plate main body 100 will not break after the user frequently bends over, thus providing normal resistance to the user and preventing accidental injury to the user's body. In other words, the exoskeleton back frame 10 provided in this application, by changing the way the leg strap fixing hole 210 is set on the back plate main body 100, can effectively prevent the back plate main body 100 from breaking after the user frequently bends over, thus providing normal assistance to the user and preventing accidental injury to the user's body.

[0052] In some embodiments of this application, such as Figure 3 As shown, the waist strap fixing groove 110 avoids the bending area A. By avoiding the bending area A, the waist strap fixing groove 110 prevents stress concentration zones from forming in the back panel body 100 between the waist strap fixing groove 110 and the bending area A. This prevents cracks from forming and spreading in the extension direction of the bending area A, and even prevents it from splitting. The extension direction of the bending area A is the same as the extension direction of the waist strap.

[0053] Compared to the waist strap fixing groove 110 on the existing back frame body, the waist strap fixing groove 110 of this application is retracted by a certain distance, that is, the waist strap fixing groove 110 is shortened by a certain length, for example, 25cm, so that the width of the waist strap is also reduced accordingly. Since the waist strap is not subjected to much force, even if the width of the waist strap is reduced, the normal use of the exoskeleton back frame 10 can still be guaranteed.

[0054] In some embodiments of this application, the leg strap fixing block 200 is integrally formed with the back panel body 100. This ensures the connection strength between the leg strap fixing block 200 and the back panel body 100, preventing the leg strap fixing block 200 from falling off the back panel body 100 after the user frequently bends over. This provides normal assistive function for the user while avoiding accidental injury to the user's body.

[0055] The leg strap fixing block 200 and the back panel body 100 can be connected into a whole by injection molding, 3D printing or other methods.

[0056] Regarding the structure of the leg strap fixing block 200, it can be cylindrical, cubic, etc. This application does not impose specific restrictions, as long as it can effectively allow the leg strap to be wrapped around and fixed.

[0057] like Figure 3 As shown, in some embodiments of this application, the leg strap fixing hole 210 and the back plate body 100 are in the direction in which the leg strap fixing block 200 protrudes from the back plate body 100 (i.e., Figure 4 The distance H is on the Z-axis. This arrangement ensures that the leg strap fixing hole 210 is formed in the middle of the leg strap fixing block 200, rather than on the surface of the leg strap fixing block 200 facing the back panel body 100. That is, the leg strap fixing hole 210 is not formed by the leg strap fixing block 200 and the back panel body 100. This increases the contact area between the leg strap fixing block 200 and the back panel body 100, increases the connection strength between the leg strap fixing block 200 and the back panel body 100, and effectively prevents the leg strap fixing block 200 from falling off the back panel body 100 after the user frequently bends over.

[0058] The spacing H can be set according to the requirements, as long as it does not affect the setting of the leg strap fixing block 200 on the back panel body 100 and the setting of the leg strap fixing hole 210 on the leg strap fixing block 200.

[0059] Optionally, the leg strap fixing block 200 protrudes from the back panel body 100 at a height L1 (i.e., at... Figure 4 The dimension pointing upwards along the Z-axis is 10mm~15mm, for example, it can be set to 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, etc.; the length L2 of the leg strap fixing block 200 in the extension direction of the leg strap fixing hole 210 (i.e., in...) Figure 4 The dimension pointing upwards along the Y-axis is 25mm~35mm, for example, it can be set to 25mm, 26mm, 27mm, 28mm, 29mm, 30mm, 31mm, 32mm, 33mm, 34mm, 35mm, etc.; the length L3 of the leg strap fixing block 200 in the direction perpendicular to the extension of the leg strap fixing hole 210 (i.e., in...) Figure 4 The dimension pointing upwards along the X-axis is 45mm to 55mm, for example, it can be set to 45mm, 46mm, 47mm, 48mm, 49mm, 50mm, 51mm, 52mm, 53mm, 54mm, 55mm, etc. This dimension of the leg strap fixing block 200 facilitates the insertion of the leg straps and ensures the connection strength between the leg strap fixing block 200 and the back panel body 100.

[0060] In some embodiments of this application, such as Figure 3 As shown, the width W1 of the waist strap fixing groove 110 is 6mm~8mm (e.g., it can be set to 6mm, 6.5mm, 7mm, 7.5mm, 8mm, etc.), and the length W2 is 80mm~90mm (e.g., it can be set to 80mm, 81mm, 82mm, 83mm, 84mm, 85mm, 86mm, 87mm, 88mm, 89mm, 90mm, etc.). This size setting of the waist strap fixing groove 110 facilitates the insertion of the waist strap and ensures that the accommodated waist strap has sufficient size to withstand the force on the user's waist, guaranteeing the normal use of the exoskeleton back frame 10. It is understood that since the waist strap fixing groove 110 penetrates the back panel body 100 along the wall thickness direction, the groove depth of the waist strap fixing groove 110 is the same as the wall thickness of the back panel body 100.

[0061] See also Figure 3 The waist strap fixing groove 110 is inclined relative to the central axis M of the leg strap fixing hole 210. This reduces the size of the back panel body 100 in the extension direction of the leg strap fixing hole 210, and further reduces the weight of the back panel body 100.

[0062] In some embodiments of this application, such as Figure 3 As shown, the backplate body 100 has multiple first weight-reducing holes 120 in the shoulder strap fixing area B. The first weight-reducing holes 120 can further reduce the weight of the backplate body 100, achieving lightweighting. It should be noted that although the setting of the first weight-reducing holes 120 reduces the contact area between the backplate body 100 and the shoulder strap mounting plate, the force transmitted from the shoulder strap mounting plate to the backplate body 100 is very small, and the connection strength between the shoulder strap mounting plate and the backplate body 100 with the first weight-reducing holes 120 is sufficient for the normal use of the exoskeleton back frame 10.

[0063] The first weight-reducing hole 120 can be a round hole, a square hole, an oblong hole, etc. The first weight-reducing hole 120 can be arranged in a matrix or other form, such as the first weight-reducing holes 120 in two adjacent rows or two adjacent columns are staggered. This application does not impose specific restrictions on the shape and arrangement of the first weight-reducing hole 120.

[0064] The diameter of the first weight-reducing hole 120 can be 5mm to 7mm, for example, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, etc.; the spacing between two adjacent first weight-reducing holes 120 is 5mm to 10mm, for example, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc. This setting can effectively ensure the strength of the back panel body 100 in the shoulder strap fixing area B, and also effectively reduce the weight of the back panel body 100.

[0065] Similarly, in some embodiments of this application, such as Figure 3 As shown, the back panel body 100 also has a non-stress concentration area C located between the shoulder strap fixing area B and the waist strap fixing groove 110, and the back panel body 100 has a second weight reduction hole 130 in the non-stress concentration area C. The second weight reduction hole 130 can further reduce the weight of the back panel body 100, achieving lightweighting.

[0066] The second weight-reducing hole 130 can be a round hole, a square hole, an oblong hole, etc. The second weight-reducing hole 130 can be arranged in a matrix or other form, such as the second weight-reducing holes 130 in two adjacent rows or two adjacent columns are staggered. This application does not impose specific restrictions on the shape and arrangement of the second weight-reducing hole 130.

[0067] The diameter of the second weight-reducing hole 130 can be 5mm to 7mm, for example, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, etc.; the spacing between two adjacent second weight-reducing holes 130 is 5mm to 10mm, for example, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc. This setting can effectively ensure the strength of the back plate body 100 in the non-stress concentration area C, and also effectively reduce the weight of the back plate body 100.

[0068] The second weight-reducing hole 130 may have the same or different diameters as the first weight-reducing hole 120. For example, the diameter of the second weight-reducing hole 130 may be larger than that of the first weight-reducing hole 120; for another example, the diameter of the second weight-reducing hole 130 may be smaller than that of the first weight-reducing hole 120; for yet another example, the diameter of the second weight-reducing hole 130 may be the same as that of the first weight-reducing hole 120.

[0069] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An exoskeleton back brace, characterized by, The back plate body has two spaced waist belt fixing grooves. The leg belt fixing block is integrally formed with the back plate body. The leg belt fixing hole has a spacing H with the back plate body in the direction in which the leg belt fixing block protrudes from the back plate body. The height L1 of the leg belt fixing block protruding from the back plate body is 10-15 mm; and / or the length L2 of the leg belt fixing block in the direction in which the leg belt fixing hole extends is 25-35 mm; and / or the length L3 of the leg belt fixing block perpendicular to the direction in which the leg belt fixing hole extends is 45-55 mm.

2. The exoskeleton back-brace of claim 1, wherein, The waist belt fixing groove has a groove width W1 of 6-8 mm; and / or a groove length W2 of 80-90 mm.

3. The exoskeleton back-brace of claim 1, wherein, The waist belt fixing groove is obliquely arranged relative to the central axis of the leg belt fixing hole.

4. The exoskeleton back-brace of claim 3, wherein, The back plate body further has a shoulder belt fixing area, and the back plate body has a plurality of first weight-reducing holes in the shoulder belt fixing area.

5. The exoskeleton back-brace of claim 1, wherein, The back plate body further has a non-stress concentration area between the shoulder belt fixing area and the waist belt fixing groove, and the back plate body has a second weight-reducing hole in the non-stress concentration area.

6. The exoskeleton back-brace of claim 1, wherein, The first weight-reducing hole and / or the second weight-reducing hole has a hole diameter of 5-9 mm; and / or the spacing between two adjacent first weight-reducing holes and / or two adjacent second weight-reducing holes is 5-10 mm.

7. The exoskeleton back-brace of any one of claims 1 to 6, wherein, The back plate body is recessed to form a mounting groove at the shoulder belt fixing area.

8. The exoskeleton back-brace of claim 7, wherein, ​ 9. The exoskeleton back-brace of claim 8, wherein, ​ 10. The exoskeleton back-brace of claim 7, wherein, ​

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