A support strip and a guard

Abstract

The utility model discloses a kind of support bar and protective equipment, including elastic body, elastic body middle part has deformation section, deformation section one side or both sides have deformation auxiliary structure;Deformation auxiliary structure includes at least one deformation unit, each deformation unit is outward convex along deformation section and is set along the length direction gap of deformation section, each deformation unit has deformation hole;When using, elastic body is bent, to make each deformation unit and / or each deformation hole deformation. Whole protective equipment uses, following joint different action form, elastic body will occur bending deformation, at this time, each deformation unit can be extruded deformation also can be tensile deformation, corresponding, according to the stress condition of deformation unit, each deformation hole can be deformed along with deformation unit, also can not be deformed, with multiple deformation modes, so that whole support bar can adapt to the different movement actions of joint, can provide better rebound effect, adapt to the activity of different intensity of human body.

Description

Technical Field

[0001] This utility model relates to the field of sports protective gear technology, and in particular to a support strip and protective gear. Background Technology

[0002] Protective gear, including knee braces, wrist guards, and elbow pads, is used to protect human joints and reduce sports (use) injuries. Knee braces, in particular, require better support and protection; therefore, support strips are typically incorporated into the main body of the brace (usually a flexible tubular structure). These support strips are usually attached to the side of the brace and bend along with the joint during flexion and extension. Their rigidity provides feedback during movement, strengthening tendon function, and also restricts joint movement within a certain range.

[0003] Currently, support bars mainly adopt circular springs, polymer materials, hinges, etc., so that the middle part of the support bar has the effect of deformation and recovery deformation to meet the usage requirements.

[0004] However, existing support bars have conventional strip or serrated structures in the middle. When using support bars, the deformation feedback in the middle is singular. However, protective gear (such as knee pads) involves various movements such as walking, running, squatting, and high knees, resulting in the current support bars still having the problem of not being a good user experience. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a support strip and protective gear. The structure of the deformation segment of the support strip is improved by designing multiple deformation units. These deformation units increase the deformation forms of the support strip during use, making it adaptable to different usage scenarios.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a support bar, comprising an elastic body, a deformation section in the middle of the elastic body, and a deformation auxiliary structure on one or both sides of the deformation section;

[0007] The deformation auxiliary structure includes at least one deformation unit, each deformation unit protruding outward along the deformation segment and spaced apart along the length of the deformation segment, and each deformation unit has a deformation hole;

[0008] In use, the elastic body bends to deform each deformation unit and / or each deformation hole.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] Understandably, support strips can be common shapes such as strips, X-shapes, and Y-shapes. The support strip as a whole is made of elastic material, such as nylon or TPE. Therefore, the support strip as a whole is an elastic body. Regardless of the structure of the elastic body, after the elastic body is fixed to the protective gear body (cylindrical body, sheet body, etc.), the middle part of the elastic body will deform during use. Therefore, the middle part of the elastic body is the main deformation section of the entire support strip.

[0011] The deformation segment can be a straight strip structure, an arc-shaped strip structure, etc., as in the prior art. Deformation auxiliary structures can be set on one or both sides of the deformation segment. The deformation auxiliary structure consists of at least one deformation unit. The deformation unit can be a rectangular block structure, a triangular block structure, etc. A deformation hole is opened in the middle of the deformation unit, so that the deformation unit with the deformation hole is actually a ring structure (closed ring structure or open ring structure). Similarly, the structure of the deformation hole can be circular, elliptical, teardrop-shaped, rectangular, etc.

[0012] When the entire protective gear is in use, the elastic body will bend and deform according to different movement patterns at the joints. At this time, each deformation unit can be compressed or stretched. Correspondingly, depending on the stress of the deformation unit, each deformation hole can deform with the deformation unit or not, which has multiple deformation modes. This allows the entire support bar to adapt to different joint movements, provide better rebound effect, and adapt to different intensities of human activity.

[0013] Furthermore, the deformation unit exhibits a constricted structure that gradually narrows from the outside towards the deformation segment.

[0014] Furthermore, the large end of the deformation unit has an upper deformation part and a lower deformation part, and the gap distance between the upper deformation part and the adjacent lower deformation part is 0.2-0.5mm.

[0015] Furthermore, a deformation positioning element is provided between the deformation unit and the adjacent deformation unit and / or the deformation segment, so that each deformation unit is pressed against each other in a preset direction;

[0016] The deformation positioning element is located between adjacent upper and lower deformation portions, and / or

[0017] The deformation positioning element is located between the upper deformation part and the upper end of the deformation segment, and / or

[0018] The deformation positioning element is located between the lower deformation part and the lower end of the deformation section.

[0019] Furthermore, the deformation positioning element includes at least one positioning protrusion for use and positioning grooves that individually mate with each positioning protrusion.

[0020] Furthermore, a deformation limiting member is provided between the deformation unit and the adjacent deformation unit and / or the deformation segment, so that the deformation hole of each deformation unit is squeezed and deformed.

[0021] Furthermore, the deformation limiting component includes a support platform and a limiting platform used in conjunction. The support platform is located on the side wall of the large end of the deformation unit near the upper deformation part or at the lower end of the deformation segment, and the limiting platform is located on the side wall of the large end of the deformation unit near the lower deformation part or at the upper end of the deformation segment.

[0022] Furthermore, the deformation unit is formed by bending a strip-shaped elastomer.

[0023] Furthermore, each side of the deformation segment has multiple deformation units. The multiple deformation units located on both sides of the deformation segment are arranged alternately along the length of the deformation segment. The two elastic body parts corresponding to any two adjacent deformation units are arranged in a co-structure so that the multiple deformation units form a serpentine deformation segment.

[0024] Furthermore, the deformation unit is located away from the outer wall of the outer side of the deformation segment, and / or

[0025] The inner wall of the deformation hole near the outer side of the deformation unit has an arc-shaped structure.

[0026] This application also provides a protective device, including an elastic cylindrical body and the aforementioned support strips, wherein the number of support strips is at least one, and each support strip is connected to the cylindrical body.

[0027] Compared with the prior art, the present invention has the following advantages: the protective gear with the support strip of the present application is more suitable for joint activities of different intensities and provides better comfort. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the first structural design of the support strip in this utility model;

[0029] Figure 2 for Figure 1 A structural schematic diagram of the mid-deformation segment from another perspective;

[0030] Figure 3 This is a schematic diagram of the second structure of the support strip in this utility model;

[0031] Figure 4 This is a schematic diagram of the third structure of the support strip in this utility model;

[0032] Figure 5 This is a schematic diagram of one structure of the deformation unit in this utility model;

[0033] Figure 6 This is a schematic diagram of another structure of the deformation unit in this utility model;

[0034] Figure 7 This is a diagram showing the process of extrusion deformation of two adjacent deformation units in this invention.

[0035] Figure 8 This is a schematic diagram of one type of protective gear in this utility model.

[0036] In the figure: support bar 100, elastic body 110, deformation section 120, connecting ring 130, deformation auxiliary structure 140, deformation unit 141, deformation hole 1411, upper deformation part 1412, lower deformation part 1413, deformation positioning part 142, positioning protrusion 1421, positioning groove 1422, deformation limiting part 143, support platform 1431, limiting platform 1432, cylindrical body 200. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0038] like Figure 8 As shown, this application also provides a protective gear, including an elastic cylindrical body 200 and the aforementioned support strips 100, wherein the number of support strips 100 is at least one, and each support strip 100 is connected to the cylindrical body 200.

[0039] It is understandable that the tubular body 200 can adopt a sheet-like structure or a tubular structure. Under normal circumstances, the tubular body 200 is a tubular structure of elastic knitted material. The tubular body 200 shown in this application is a tubular structure. In actual use, the tubular body 200 can be a sheet or other structures.

[0040] One or more support strips 100 can be connected to the cylindrical body 200, and the number of support strips 100 is set according to the applicable scenario of the knee brace. Commonly, one support strip 100 is set on each side of the cylindrical body 200 to support both sides of the knee and improve the overall support effect of the brace. When support strips 100 are set on both sides of the cylindrical body 200, other support strips 100 can be superimposed on the surface of each support strip 100 to form a reinforced support and improve the support strength; of course, the support strips 100 on both sides of the cylindrical body 200 can also be made of different materials, so that the support strips 100 and the cylindrical body 200 can be combined to form braces with different support strengths.

[0041] The support strip 100 and the cylindrical body 200 can be fixedly connected by sewing or by snap-fit ​​or magnetic attraction.

[0042] Common shapes of the support bar 100 include strip structures, X-shapes, Y-shapes, etc. When the support bar 100 is connected to the cylindrical body 200, the upper and lower connecting ends (parts) of the support bar 100 are fixed to the cylindrical body 200. To give the support bar 100 a certain supporting elasticity, the support bar 100 is made of an elastic material, such as nylon or TPE. Therefore, the support bar 100 is an elastic body 110. Regardless of the structure of the elastic body 110, after the elastic body 110 is connected to the cylindrical body 200, the middle part of the elastic body 110 will deform during use. Therefore, the middle part of the elastic body 110 is the main deformation section 120 of the entire support bar 100.

[0043] In the prior art, the deformation segment 120 is a common strip-shaped structure or a sawtooth-shaped structure, which cannot be well adapted to the joint for different types of movements during use. Therefore, this application improves the deformation segment 120 of the existing support bar 100 so that the entire protective gear can adapt to different intensities of human activity.

[0044] Specifically, this application also provides a support bar 100, including an elastic body 110, a deformation segment 120 in the middle of the elastic body 110, and deformation auxiliary structures 140 on one or both sides of the deformation segment 120; the deformation auxiliary structure 140 includes at least one deformation unit 141, each deformation unit 141 protruding outward along the deformation segment 120 and spaced apart along the length direction of the deformation segment 120, and each deformation unit 141 having a deformation hole 1411; in use, the elastic body 110 bends to deform each deformation unit 141 and / or each deformation hole 1411.

[0045] Understandably, the deformable segment 120 can be a straight strip structure, an arc-shaped strip structure, etc., as in the prior art. Deformation auxiliary structures 140 can be set on one or both sides of the deformable segment. The deformation auxiliary structure 140 consists of at least one deformable unit 141. The deformable unit 141 can be a rectangular block structure, a triangular block structure, etc. A deformable hole 1411 is opened in the middle of the deformable unit 141, so that the deformable unit 141 with the deformable hole 1411 is actually a ring structure (closed ring structure or open ring structure). Similarly, the structure of the deformable hole 1411 can be circular, elliptical, teardrop-shaped, rectangular, etc.

[0046] Specifically, in some embodiments of this application, such as Figure 1 , 3As shown in Figure 4, the elastic body 110 of the support strip 100 is generally a strip-shaped structure. Connecting rings 130 are respectively provided at the upper and lower ends (or near the upper and lower ends) of the elastic body 110. The connecting rings 130 and the cylindrical body 200 are fixedly connected by sewing or other fixing methods. The middle part of the elastic body 110 is a deformation section 120. Multiple deformation units 141 are provided on one side of the deformation section 120. Each deformation unit 141 has a rectangular block structure, a triangular block structure, a fan-shaped structure, etc., extending outward along the deformation section 120. The deformation unit 141 preferably has a structure that narrows towards the deformation section 120, such as a triangle, teardrop shape, or fan shape. A deformation hole 1411 is provided on each deformation unit 141. The deformation hole 1411 can be circular, elliptical, teardrop-shaped, rectangular, etc., and the deformation hole 1411 preferably has a structure that adapts to the deformation unit 141. Figure 3 , 4 As shown, the deformation segment 120 can be a strip structure, and multiple deformation units 141 extend outward along the deformation segment 120; as Figure 1 , 2 As shown, one side of multiple deformation units 141 can also be connected vertically to form a deformation segment 120 with a special structure.

[0047] Based on the above structure, multiple deformation units 141 can be provided on both sides of the deformation segment 120. For example... Figure 4 As shown, the deformation segment 120 is a strip structure, and multiple deformation units 141 are provided on both sides of the deformation segment 120. The deformation units 141 located on both sides of the deformation segment 120 can be arranged alternately or relative to each other. Each deformation unit 141 is provided with a deformation hole 1411.

[0048] Based on the above-described structure, when the support bar 100 is fixed to the protective gear, during the use of the protective gear, the elastic body 110 will bend and deform according to different movement patterns at the joint. At this time, each deformation unit 141 can be compressed or stretched. Correspondingly, depending on the force on the deformation unit 141, each deformation hole 1411 can deform with the deformation unit 141 or not deform, thus having multiple deformation modes. This allows the entire support bar 100 to adapt to different joint movements, provide better rebound effect, and adapt to different intensities of human activity.

[0049] In some embodiments of this application, the deformation unit 141 has a constricted structure that gradually shrinks from the outside toward the deformation segment 120.

[0050] Understandably, since the deformation unit 141 is made of an elastic material, it can deform when the elastic body 110 is bent. Therefore, the deformation unit 141 can have any structure. However, considering the ease of use of the deformation unit 141, this application sets the deformation unit 141 as a constricted structure that gradually narrows towards the deformation segment 120, such as a triangle or teardrop shape. In this case, even if the deformation hole 1411 opened on the deformation unit 141 is an elliptical or rectangular structure.

[0051] Taking two adjacent deformation units 141 as an example, each deformation unit 141 is similar to a triangle, such as... Figure 7 As shown, each pair of triangular deformation units 141 is divided into three stroke segments. During bending, assuming the upper deformation unit 141 begins to change position as the elastic body 110 bends, the lower part of the larger end of the upper deformation unit 141 and the upper part of the lower deformation unit 141 come into contact. When the upper deformation unit 141 and the lower deformation unit 141 contact at point A, the bending stroke changes, and it begins to rotate around point A. At this time, the deformation of the two deformation units 141 will be concentrated on the material of the lower deformation unit 141. This movement continues until the upper deformation unit 141 and the lower deformation unit 141 bend around point A, and the two units contact at point B, approximately 14.63°. Figure 7 (2) Angle b), this is the first segment of the journey.

[0052] When point B makes contact, the center of curvature changes from point A to point B, resulting in a curvature of approximately 28.4°. Figure 7 (1) Angle a), at this time the part of the right dashed line is deformed, the material available for deformation is reduced, the stress increases, and this is the second segment of the stroke.

[0053] When the surface to the left of point B comes into contact, the stroke ends. The force thereafter is concentrated in the yellow area, where the deformed material has the smallest volume and the stress is the greatest. This is the third stroke.

[0054] The bending stress increases progressively in the three strokes, approximately bending to the ranges of (0°-15°), (15°-45°), and (45°), corresponding to three movements of the knee joint: walking, running, squatting, and high knee raising, respectively, adapting to different intensities of human activity.

[0055] Therefore, when the deformation unit 141 of this application is set to be constricted toward the deformation section 120, it will have multiple deformation possibilities. Depending on the shape of the deformation unit 141, it can have multiple deformation strokes to adapt to different intensities of human activity.

[0056] In some embodiments of this application, the large end of the deformation unit 141 has an upper deformation portion 1412 and a lower deformation portion 1413, and the gap distance between the upper deformation portion 1412 and the adjacent lower deformation portion 1413 is 0.2-0.5mm.

[0057] Understandably, the deformation unit 141 has a constricted structure with one end larger than the other. Therefore, when multiple deformation units 141 are pressed together, the larger ends of each deformation unit 141 contact and press together. Since multiple deformation units 141 are spaced apart along the length of the deformation segment 120, the actual gap between each deformation unit 141 is the distance between the upper deformation part 1412 of the lower deformation unit 141 and the lower deformation part 1413 of the upper deformation unit 141.

[0058] To facilitate the mold making of the entire support bar 100 and make it easier to manufacture, this application sets the distance between two adjacent deformation units 141 to 0.2-0.5mm. When the support bar 100 begins to bend under stress, the two adjacent deformation units 141 will come together within a small range. Within this range, all materials in the entire torsion part (deformation section 120) are subjected to average stress deformation, and the stress generated at this time is minimal, which can increase the service life of the support bar 100.

[0059] Specifically, such as Figure 4 As shown in the figure, point C can be understood as the lowest position of the upper deformed part 1412 at the large end of each deformable unit 141, and point D can be understood as the relatively high position of the lower deformed part 1413 at the large end of each deformable unit 141. The distance between points C and D is 0.2-0.5mm.

[0060] In some embodiments of this application, the deformation unit 141 is formed by bending a strip-shaped elastomer.

[0061] Since multiple deformation units 141 can be provided on both sides of the deformation segment 120 in this application, and multiple deformation units 141 can form a deformation segment 120 with a special structure, in order to facilitate the deformation segment 120 to have multiple structures, the deformation unit 141 of this application is formed by bending a strip-shaped elastic body. This method can ensure that the shape of the deformation hole 1411 and the deformation unit 141 are basically consistent, and that it is a constricted structure. At the same time, different structures of deformation segment 120 can be formed by different arrangement of multiple deformation units 141.

[0062] Specifically, such as Figure 6 As shown, the elastic body bends to form a triangular deformation unit 141; as Figure 5 As shown, the elastic body is bent to form a pentagonal deformation unit 141.

[0063] In some embodiments of this application, the deformable segment 120 has multiple deformable units 141 on both sides. The multiple deformable units 141 on both sides of the deformable segment 120 are arranged alternately along the length direction of the deformable segment 120. The two elastic body parts corresponding to any two adjacent deformable units 141 are structurally arranged together, so that the multiple deformable units 141 constitute a serpentine deformable segment 120.

[0064] Understandably, based on the configuration of the deformation unit 141, when multiple deformation units 141 are provided on both sides of the deformation segment 120, the multiple deformation units 141 can be staggered left and right and connected vertically in sequence. At this time, the two elastic body parts corresponding to any two adjacent deformation units 141 are structurally configured so that the multiple deformation units 141 form a serpentine deformation segment 120.

[0065] Specifically, such as Figure 1 , 2 As shown, the elastic body 110 is a strip structure, and the deformation section 120 is a continuously bent serpentine structure. This serpentine structure bends left and right to form multiple deformation units 141, which are arranged alternately on both sides of the deformation section 120. This structure is similar to the support bar 100 of the existing serpentine spring. However, although the continuous recurved structure of the existing serpentine spring has good stress dispersion ability and provides more torsional space, its structure is relatively simple. It does not have the design of angle and stroke, nor does it have the design and planning of the shape of the torsional unit after the recurved units come into contact after bending to a certain angle. Therefore, when installed on knee braces or orthotics, the feedback force felt by the human body does not increase with the angle, resulting in a poor experience. The serpentine structure of this application can solve the defects of the existing serpentine spring-shaped support bar 100. The continuous recurved shape, spacing and contact surface of the serpentine structure of this application are designed so that it has multiple strokes during bending and generates different feedback forces. When it is installed on both sides of the knee joint brace or orthosis, it has a more obvious effect of the feedback force gradually becoming stronger as the bending angle increases.

[0066] In some embodiments of this application, the outer wall of the deformation unit 141 away from the outer side of the deformation segment 120, and / or the inner wall of the deformation hole 1411 near the outer side of the deformation unit 141 is an arc-shaped structure.

[0067] Understandably, during the bending process, the maximum deformation position of each deformation unit 141 is on the inner and outer sides of the large end sidewall of each deformation unit 141 (the sidewall of the deformation unit 141 away from the deformation segment 120). In order to avoid the elastic strip material of each deformation unit 141 being subjected to concentrated force and causing breakage, this application has an arc-shaped structure on the outer wall of the deformation unit 141 away from the deformation segment 120 and / or the inner wall of the deformation hole 1411 near the outer side of the deformation unit 141.

[0068] like Figure 1 , 2As shown, the deformation section 120 of the support bar 100 has a serpentine structure. The outer wall of each deformation unit 141 away from the deformation section 120 (where H is located in the figure) and the inner wall of the deformation hole 1411 near the outer side of the deformation unit 141 (where S is located in the figure) are both arc-shaped structures.

[0069] In some embodiments of this application, a deformation positioning member 142 is provided between the deformation unit 141 and adjacent deformation units 141 and / or with the deformation segment 120, so that each deformation unit 141 is pressed against each other in a preset direction; the deformation positioning member 142 is located between adjacent upper deformation part 1412 and lower deformation part 1413, and / or the deformation positioning member 142 is located between the upper deformation part 1412 and the upper end of the deformation segment 120, and / or the deformation positioning member 142 is located between the lower deformation part 1413 and the lower end of the deformation segment 120.

[0070] Understandably, during the bending process of the elastic body 110, when multiple deformation units 141 are provided on the bending side of the deformation segment 120, theoretically, the optimal usage state of the deformation units 141 is that adjacent deformation units 141 can compress each other, or the deformation units 141 and the upper and lower ends of the deformation segment 120 can compress each other to control the bending stroke, so that each deformation unit 141 has a preset amount of multi-segment bending stroke. Currently, in the process of mutual compression, the two contacting parts of the simple constricted deformation units 141 are in multi-faceted contact, which is prone to slippage. Therefore, it is necessary to set some deformation positioning parts 142 to ensure that each deformation unit 141 can compress each other in a preset direction.

[0071] Since the deformation unit 141 can cooperate with other adjacent deformation units 141 or directly cooperate with the upper and lower ends of the deformation segment 120, the deformation positioning member 142 can be disposed between adjacent upper deformation part 1412 and lower deformation part 1413, and / or disposed between upper deformation part 1412 and upper end of deformation segment 120, and / or disposed between lower deformation part 1413 and lower end of deformation segment 120.

[0072] Specifically, such as Figure 1 , 2As shown, the strip-shaped elastic body 110 has a serpentine deformation segment 120 in the middle. This deformation segment 120 includes multiple deformation units 141 arranged alternately from top to bottom and left to right. A deformation positioning member 142 is provided between the upper deformation portion 1412 of the deformation unit 141 at the uppermost installation position and the upper end of the deformation segment 120; a deformation positioning member 142 is provided between the lower deformation portion 1413 of the deformation unit 141 at the lowermost installation position and the lower end of the deformation segment 120; a deformation positioning member 142 is also provided between the upper deformation portion 1412 of any deformation unit 141 in the middle and the lower deformation portion 1413 of another adjacent deformation unit 141. This layout allows each deformation unit 141 to be compressed and deformed in a preset direction when the entire elastic body 110 is bent.

[0073] In some embodiments of this application, the deformable positioning member 142 includes at least one positioning protrusion 1421 that engages with each positioning protrusion 1421 and a positioning groove 1422 that engages with each positioning protrusion 1421 individually.

[0074] Understandably, the positioning groove 1422 and the corresponding positioning protrusion 1421 can achieve the positioning function. Whether the positioning groove 1422 is set on the upper deformation part 1412 or the lower deformation part 1413 of the deformation unit 141, the positioning function can be achieved. At the same time, the number of positioning grooves 1422 can also be set according to the thickness of the elastic body 110. Multiple positioning grooves 1422 are arranged along the thickness direction of the elastic body 110, and multiple positioning protrusions 1421 need to be set accordingly.

[0075] The positioning protrusion 1421 can have a spherical or columnar structure, and the positioning groove 1422 can be a matching structure. This application preferably uses a spherical protrusion structure for the positioning protrusion 1421.

[0076] Specifically, such as Figure 1 , 2As shown, the strip-shaped elastic body 110 has a serpentine deformation section 120 in the middle. The deformation section 120 includes multiple deformation units 141 that are staggered from top to bottom and left to right. A deformation positioning member 142 is provided between the upper deformation part 1412 of the deformation unit 141 located at the uppermost installation position and the upper end of the deformation section 120. The deformation positioning member 142 has two positioning grooves 1422 and two positioning protrusions 1421. The positioning protrusions 1421 are located at the upper deformation part 1412 of the deformation unit 141, and the positioning grooves 1422 are located at the upper end of the deformation section 120. A deformation positioning member 142 is provided between the lower deformation portion 1413 and the lower end of the deformation segment 120 of the deformation unit 141 located at the lowest installation position. The deformation positioning member 142 has two positioning grooves 1422 and two positioning protrusions 1421, wherein the positioning protrusions 1421 are located at the lower deformation portion 1413 of the deformation unit 141, and the positioning grooves 1422 are located at the lower end of the deformation segment 120. Deformation positioning members 142 are also provided between the upper deformation portion 1412 of the multiple deformation units 141 located on the left and the lower deformation portion 1413 of another adjacent deformation unit 141. Each deformation positioning member 142 has two positioning grooves 1422 and two positioning protrusions 1421. A positioning protrusion 1421 is provided, wherein the positioning protrusion 1421 is located on the upper deformation portion 1412 of the deformation unit 141, and the positioning groove 1422 is located on the lower deformation portion 1413 of the deformation unit 141; a deformation positioning member 142 is also provided between the upper deformation portion 1412 of the multiple deformation units 141 on the right and the lower deformation portion 1413 of another adjacent deformation unit 141. Each deformation positioning member 142 has two positioning grooves 1422 and two positioning protrusions 1421, wherein the positioning protrusion 1421 is located on the lower deformation portion 1413 of the deformation unit 141, and the positioning groove 1422 is located on the upper deformation portion 1412 of the deformation unit 141.

[0077] This application utilizes the positioning method of grooves and protrusions to avoid the problem of slippage of the contact surface during the extrusion process of each deformation unit 141, and to ensure that each deformation unit 141 is extruded and deformed in a preset direction as much as possible.

[0078] In some embodiments of this application, a deformation limiting member 143 is provided between the deformation unit 141 and the adjacent deformation unit 141 and / or the deformation segment 120, so that the deformation hole 1411 of each deformation unit 141 is squeezed and deformed.

[0079] Understandably, when the upper deformation unit 141 presses the lower deformation unit 141, it actually rotates first at the position of the deformation positioning member 142. When the lower deformation part 1413 of the upper deformation unit 141 presses the upper deformation part 1412 of the lower deformation unit 141, the side wall where the large end of the lower deformation unit 141 is located will deform (third stroke), thereby changing the structure of the deformation hole 1411. At this time, it is necessary to limit the contact point of the two deformation units 141 after rotating along the deformation positioning member 142 in order to ensure that the deformation hole 1411 is squeezed and deformed.

[0080] To this end, the application also includes a deformation limiting member 143 to compress and deform the deformation holes 1411 of each deformation unit 141. As for the installation position of each deformation limiting member 143, it is mainly necessary to adapt to different numbers of deformation units 141. Therefore, the deformation limiting member 143 is set between two adjacent deformation units 141, and / or between the deformation unit 141 and the upper and lower ends of the deformation segment 120.

[0081] In some embodiments of this application, the deformation limiting member 143 includes a support platform 1431 and a limiting platform 1432 used in conjunction. The support platform 1431 is located on the large end sidewall of the deformation unit 141 near the upper deformation part 1412 or at the lower end of the deformation segment 120, and the limiting platform 1432 is located on the large end sidewall of the deformation unit 141 near the lower deformation part 1413 or at the upper end of the deformation segment 120.

[0082] To achieve the positioning and extrusion of the 143 pairs of deformation limiting components, such as Figure 1 , 2 As shown, each support platform 1431 is located on the side wall of the large end of the deformation unit 141 near the upper deformation part 1412 and the lower end of the deformation segment 120, respectively. Each support platform 1431 extends diagonally downwards along the side wall of the deformation unit 141 near the upper deformation part 1412. The support platform 1431 at the lower end of the deformation segment 120 has a similar structure. Each limiting platform 1432 is located on the side wall of the large end of the deformation unit 141 near the lower deformation part 1413 and at the upper end of the deformation segment 120. Each limiting platform 1432 extends diagonally upwards along the side wall of the deformation unit 141 near the lower deformation part 1413. The limiting platform 1432 at the upper end of the deformation segment 120 has a similar structure.

[0083] When in use, the support platform 1431 and the limiting platform 1432 used together squeeze each other, which can squeeze the deformation unit 141 where the support platform 1431 is located, forcing the deformation hole 1411 of the deformation unit 141 to deform, so as to achieve the purpose of multi-stage stroke change.

[0084] In this utility model, unless otherwise explicitly 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0085] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0086] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A support bar, comprising an elastic body (110), wherein the elastic body (110) has a deformation segment (120) in the middle, characterized in that: The deformation segment (120) has a deformation auxiliary structure (140) on one or both sides; The deformation auxiliary structure (140) includes at least one deformation unit (141), each deformation unit (141) protrudes outward along the deformation section (120) and is spaced apart along the length direction of the deformation section (120), and each deformation unit (141) has a deformation hole (1411). In use, the elastic body (110) bends to deform each deformation unit (141) and / or each deformation hole (1411).

2. The support bar according to claim 1, characterized in that: The deformation unit (141) has a narrowing structure that gradually shrinks from the outside towards the deformation segment (120).

3. The support strip according to claim 2, characterized in that: The large end of the deformation unit (141) has an upper deformation part (1412) and a lower deformation part (1413), and the gap distance between the upper deformation part (1412) and the adjacent lower deformation part (1413) is 0.2-0.5mm.

4. The support strip according to claim 3, characterized in that: A deformation positioning element (142) is provided between the deformation unit (141) and the adjacent deformation unit (141) and / or the deformation segment (120) so that each deformation unit (141) is pressed against each other in a preset direction; The deformation positioning element (142) is located between adjacent upper deformation portions (1412) and lower deformation portions (1413), and / or The deformation positioning element (142) is located between the upper deformation part (1412) and the upper end of the deformation segment (120), and / or The deformation positioning element (142) is located between the lower deformation part (1413) and the lower end of the deformation section (120).

5. The support strip according to claim 4, characterized in that: The deformable positioning element (142) includes at least one positioning protrusion (1421) for use and each positioning groove (1422) for a single engagement with each positioning protrusion (1421).

6. The support strip according to any one of claims 3-5, characterized in that: A deformation limiting member (143) is provided between the deformation unit (141) and the adjacent deformation unit (141) and / or the deformation segment (120) so that the deformation hole (1411) of each deformation unit (141) is squeezed and deformed.

7. The support strip according to claim 6, characterized in that: The deformation limiting component (143) includes a support platform (1431) and a limiting platform (1432) used in conjunction. The support platform (1431) is located on the large end sidewall of the deformation unit (141) near the upper deformation part (1412) or at the lower end of the deformation segment (120). The limiting platform (1432) is located on the large end sidewall of the deformation unit (141) near the lower deformation part (1413) or at the upper end of the deformation segment (120).

8. The support bar according to claim 1, 2, 3, 4, 5 or 7, characterized in that: The deformation unit (141) is formed by bending a strip of elastomer.

9. The support bar according to claim 8, characterized in that: The deformation segment (120) has multiple deformation units (141) on both sides. The multiple deformation units (141) on both sides of the deformation segment (120) are arranged alternately along the length direction of the deformation segment (120). The two elastic body parts corresponding to any two adjacent deformation units (141) are arranged in a co-structure so that the multiple deformation units (141) form a serpentine deformation segment (120).

10. A protective gear, characterized in that: Includes a support strip (100) as described in any one of claims 1-9 and an elastic cylindrical body (200), wherein the number of support strips (100) is at least one, and each support strip (100) is connected to the cylindrical body (200).

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