Anti-slip Velcro

Abstract

The utility model discloses a non-slip Velcro, which includes a sheet-like substrate and at least two groups of connection clusters arranged on the substrate, the connection clusters include multiple columns of connection groups arranged in the same direction, each connection group includes multiple connection pieces arranged in a row, and the space between any two adjacent connection pieces in the same connection group is a processed notch, the connection piece includes an elastic arm erected on the substrate and at least one hook and buckle portion arranged at the upper end of the elastic arm, the hook and buckle portion is located on the side of the connection piece opposite to the adjacent connection group in the same connection cluster, or on the side of the connection piece away from the adjacent connection group in the same connection cluster, and the connection group of at least one connection cluster is arranged in a different direction from the connection groups of other connection clusters. The Velcro of the utility model is easy to use, conducive to improving service life, and the molding method is very simple, and can avoid slipping between two pieces of Velcro.

Description

Technical Field

[0001] The utility model relates to the technical field of Velcro, in particular to an anti-slip Velcro. Background Art

[0002] Traditional Velcro consists of two parts, a fleece side and a hook side. During the production process, the fleece side and the hook side must be produced separately. When it is used on specific products, the hook side and the fleece side must be used together. There is a risk of confusing the fleece side and the hook side when producing these products. At the same time, after this kind of Velcro has been used for a period of time, some of the hairs on the fleece side will break, resulting in reduced adhesion.

[0003] In order to solve the above problems, the patent with publication number CN117356801A discloses a Velcro with selectable adhesion level. The Velcro adopts a base sheet with multiple hook-shaped connectors, so that any two pieces of the same Velcro can be bonded to each other, and the service life is relatively high. However, this Velcro also has the following problems: since each hook is independent of each other and the hooks are rotationally symmetrical, it is very difficult to produce. In addition, the hooks in this Velcro are arranged in an array. When two Velcros are bonded together, the Velcros are easy to slide relative to each other along the arrangement direction of the hooks and detach. Utility Model Content

[0004] In view of this, one of the purposes of the utility model is to provide a non-slip Velcro that is easy to shape.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A non-slip Velcro tape comprises a sheet-like substrate and at least two connection clusters arranged on the substrate, the connection clusters comprising a plurality of connection groups arranged in the same direction, each connection group comprising a plurality of connection members arranged in a row at intervals, the space between any two adjacent connection members in the same connection group being a processed notch, the connection members comprising elastic arms erected on the substrate and at least one hook and buckle portion arranged at the upper end of the elastic arms, the hook and buckle portion being located on a side of the connection member opposite to an adjacent connection group in the same connection cluster, or on a side of the connection member away from an adjacent connection group in the same connection cluster, the arrangement direction axis of the connection group of at least one connection cluster intersects with the arrangement direction axis of the connection groups of other connection clusters.

[0007] In a preferred embodiment of the present invention, the substrate comprises at least two substrate units spliced ​​together, and each group of connection clusters is arranged on one substrate unit.

[0008] In a preferred solution of the present invention, the side surface of the connecting piece facing the processed notch is a plane.

[0009] In a preferred embodiment of the present invention, in the same connection cluster, all connection groups are parallel and all connection members are arranged in an array.

[0010] In a preferred solution of the utility model, a partition groove is provided between any two adjacent connection clusters to separate the two.

[0011] In a preferred embodiment of the present invention, the connector is J-shaped or "7"-shaped, and each connector has one hook portion.

[0012] A method for forming a non-slip Velcro is used to form the non-slip Velcro as described above, comprising the following steps:

[0013] S1, an extrusion-molded Velcro blank, the Velcro blank comprising a sheet-shaped substrate unit and a plurality of connecting strips arranged in parallel on the upper surface of the substrate unit, the cross-section of the connecting strip is J-shaped or "7"-shaped, and the connecting strip comprises a vertical strip arranged on the upper surface of the substrate unit along the front-back direction and a fastening strip arranged on one side of the vertical strip;

[0014] S2, cutting the connecting strips so that each connecting strip has a plurality of the processing notches, cutting the fastening strips into a plurality of hooks, and cutting a plurality of elastic arms on the vertical strips, so that the connecting cluster can be formed on the substrate unit;

[0015] S3. Splice at least two substrate units together so that the connection groups on each substrate unit are arranged in different directions.

[0016] Furthermore, in step S3, when any two substrate units are spliced ​​together, the splicing edge of at least one substrate unit protrudes from the connecting cluster thereon, so that a partition groove is formed between any two adjacent connecting clusters to separate the two.

[0017] Furthermore, the method of making the splicing edge of the substrate unit protrude from the connection cluster thereon is to cut off a part of the connection cluster, or to reserve a protruding part at the edge of the substrate unit when extruding the Velcro blank.

[0018] In another preferred embodiment of the present invention, the connector is T-shaped, and each connector has two hooks and buckles, which are respectively arranged on two sides of the upper end of the elastic arm.

[0019] Furthermore, the distance between the elastic arm and the elastic arm of the adjacent connection group is A, the distance between the hook portion and the hook portion of the adjacent connection group is B, the left and right width of the hook portion is W, and A, B, and W satisfy the following relationship B <W<A。

[0020] Furthermore, the ratio of W to B is 1.01 to 1.45.

[0021] Furthermore, the hook portion is an undercut extending downward.

[0022] Furthermore, an included angle C between the inner side surface of the undercut and the elastic arm is 15° to 60°.

[0023] Furthermore, the distance between adjacent machining notches is greater than the width of the machining notches.

[0024] A method for forming a non-slip Velcro is used to form the non-slip Velcro as described above, comprising the following steps:

[0025] S1, an extrusion-molded Velcro blank, the Velcro blank comprising a sheet-shaped substrate unit and a plurality of connecting strips arranged in parallel on the upper surface of the substrate unit, the cross-section of the connecting strip is T-shaped, and the connecting strip comprises a vertical strip arranged on the upper surface of the substrate unit along the front-back direction and two buckle strips arranged on both sides of the upper end of the vertical strip;

[0026] S2, cutting the connecting strips so that each connecting strip has a plurality of the processing notches, cutting the fastening strips into a plurality of hooks, and cutting a plurality of elastic arms on the vertical strips, so that the connecting cluster can be formed on the substrate unit;

[0027] S3. Splice at least two substrate units together so that the connection groups on each substrate unit are arranged in different directions.

[0028] The beneficial effects of the utility model are as follows: compared with the traditional Velcro that needs to distinguish between the fur surface and the hook surface, the single hook Velcro and the anti-slip Velcro of the utility model are more convenient to use and are conducive to improving the service life. Compared with the mushroom head Velcro available on the market, the molding method of the anti-slip Velcro is very simple, which is conducive to improving production efficiency, and the Velcro after molding has high strength and is not easy to be damaged when bearing heavy objects. In addition, for an anti-slip Velcro, when two pieces of Velcro are bonded together, since the arrangement directions of the connection groups on different connection clusters are different, when the Velcro is used to install an object on the wall, slipping between the two pieces of Velcro can be avoided, so that the object is firmly bonded to the wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional diagram of a single hook type Velcro embodiment 1;

[0030] Figure 2 It is a bonding principle diagram of single hook Velcro embodiment 1;

[0031] Figure 3 It is a partial structural schematic diagram of a Velcro blank for producing a single-hook Velcro embodiment 1;

[0032] Figure 4 It is a bonding principle diagram of single hook Velcro embodiment 2;

[0033] Figure 5 It is a top view of a first embodiment of a non-slip Velcro;

[0034] Figure 6 It is a top view of a second embodiment of the anti-slip Velcro;

[0035] Figure 7 It is a top view of a third embodiment of the anti-slip Velcro;

[0036] Figure 8 This is Embodiment 1 of the 7-shaped connector;

[0037] Fig. 9 This is Embodiment 2 of the 7-shaped connector;

[0038] Fig.10 It is a top view of a fourth embodiment of the anti-slip Velcro;

[0039] Fig.11 is a top view of a non-slip Velcro embodiment 5;

[0040] Fig.12 is a top view of a sixth embodiment of the anti-slip Velcro;

[0041] Fig.13 is a top view of a non-slip Velcro embodiment 7;

[0042] Fig.14 It is a schematic diagram of the partial structure of the second Velcro blank;

[0043] Fig.15 It is a partial structural diagram of the second Velcro unit;

[0044] Fig.16 is a bonding principle diagram of Example 1 of a T-type connector;

[0045] Fig.17 is a schematic structural diagram of a second embodiment of a T-shaped connector;

[0046] Fig.18 It is a schematic structural diagram of Example 3 of the T-type connector. DETAILED DESCRIPTION

[0047] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0048] It should be noted that all directional indications in the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the descriptions of "preferred", "sub-preferred", etc. in the present invention are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "preferred" or "sub-preferred" may explicitly or implicitly include at least one such feature.

[0049] Reference Figures 1 to 4 A single hook Velcro comprises a sheet-like substrate 100, and a plurality of connecting groups 210 arranged side by side on the substrate 100, each connecting group 210 comprises a plurality of connecting members 2 arranged in a row, and the space between any two adjacent connecting members 2 in the same connecting group 210 is a processed notch 301, and the connecting member 2 comprises an elastic arm 21 erected on the substrate 100 and a hook portion 22 arranged at the upper end of the elastic arm 21, and the hook portion 22 is located on a side of the connecting member 2 opposite to the adjacent connecting group 210, or on a side of the connecting member 2 away from the adjacent connecting group 210.

[0050] Example 1

[0051] Figure 1 to Figure 2 The embodiment 1 of the single hook Velcro is shown. In this embodiment, the connector 2 is J-shaped, and the side of the connector 2 facing the processing notch 301 is a plane. All the connection groups 210 are parallel, and all the connectors 2 are arranged in an array.

[0052] Reference Figure 2 In this embodiment, all the hooks and buckles 22 are located on the same side of the connector 2, that is, if the connection group 210 is arranged along the front-to-back direction, all the hooks and buckles 22 are located on the left side of the upper end of the connector 2, or on the right side of the upper end of the connector 2. Taking the example that all the hooks and buckles 22 are located on the right side of the upper end of the connector 2, the hooks and buckles 22 of the connector 2 close to the right edge of the substrate 100 are located on the side of the connector 2 away from the adjacent connection group 210; the hooks and buckles 22 of the remaining connectors 2 are all located on the side of the connector 2 opposite to the connection group 210 adjacent to the right thereof.

[0053] Reference Figure 1-Figure 3 The method for forming the single hook Velcro comprises the following steps:

[0054] S1, an extrusion-molded Velcro blank 300, the Velcro blank 300 comprises a sheet-shaped substrate unit 1 and a plurality of connecting strips 5 arranged in parallel on the upper surface of the substrate unit 1, the cross section of the connecting strip 5 is J-shaped, and the connecting strip 5 comprises a vertical strip 51 arranged on the upper surface of the substrate unit 1 along the front-to-back direction and a fastening strip 52 arranged at the upper end of the vertical strip 51;

[0055] S2. Cut the connecting strips 5 so that a plurality of processed notches 301 are cut out on each connecting strip 5, cut the fastening strips 52 into a plurality of hook portions 22, and simultaneously cut out a plurality of elastic arms 21 on the vertical strips 51, so that a plurality of connecting parts 2 can be formed on the substrate unit 1, and all the connecting parts 2 are arranged in an array.

[0056] During the cutting process, a saw blade of a specific thickness can be used to cut along a direction perpendicular to the connecting strip 5 or cut obliquely from one side of the Velcro to the other side, so that a processing notch 301 of a specific width can be cut on multiple connecting strips 5 at one time. In addition, the processing notch 301 can also be cut by milling cutter cutting, hot cutter cutting, wire cutting, laser cutting or other material removal processing methods.

[0057] Reference Figure 2 , press the two pieces of Velcro together, and then they can be buckled together through the J-shaped connector 2 on the two pieces of Velcro. Compared with the traditional Velcro that needs to distinguish between the fleece side and the hook side, this Velcro is more convenient to use and is conducive to improving the service life. Compared with the mushroom head Velcro on the market, this Velcro only needs to be cut after extrusion to be formed, and the forming method is very simple, which is conducive to improving production efficiency.

[0058] In addition, refer to Figures 8 to 9 The connector 2 can also be set to a 7-shape, and the corners of the 7-shape can be an arc transition or a right-angle transition. The Velcro using the 7-shaped connector 2 has the same bonding principle and the same molding method as the Velcro using the J-shaped connector 2. It also has the characteristics of simple molding method and is conducive to improving production efficiency.

[0059] Example 2

[0060] Figure 4 The bonding principle diagram of Example 2 of the single hook Velcro is shown. This example has a similar structure to Example 1, and the only difference lies in the orientation of the buckling parts in each connection group 210.

[0061] In Example 1, all the hooks 22 are located on the left side of the upper end of the connector 2, or are located on the right side of the upper end of the connector 2. In this embodiment, a part of the hooks 22 are located on the left side of the upper end of the connector 2, and a part of the hooks 22 are located on the right side of the upper end of the connector 2. Specifically, from left to right, the hooks 22 in the connection groups 210 in odd columns are located on the left side of the upper end of the connector 2; and the hooks 22 in the connection groups 210 in even columns are located on the right side of the upper end of the connector 2.

[0062] The Velcro of this embodiment has basically the same bonding principle and the same molding method as the Velcro of Embodiment 1, and also has the characteristics of simple molding method and being conducive to improving production efficiency.

[0063] Reference Figures 5 to 7 A non-slip Velcro comprises a sheet-like substrate 100 and at least two groups of connection clusters 200 arranged on the substrate 100, the connection cluster 200 comprises a plurality of columns of connection groups 210 arranged along the same direction, each connection group 210 comprises a plurality of connection members 2 arranged in a row at intervals, the space between any two adjacent connection members 2 in the same connection group 210 is a processed notch 301, the connection member 2 comprises an elastic arm 21 erected on the substrate 100 and at least one hook and buckle portion 22 arranged at the upper end of the elastic arm 21, the hook and buckle portion 22 is located on a side of the connection member 2 opposite to the adjacent connection group 210 in the same connection cluster 200, or on a side of the connection member 2 away from the adjacent connection group 210 in the same connection cluster 200, the arrangement direction axis of the connection group 210 of at least one connection cluster 200 intersects with the arrangement direction axis of the connection group 210 of other connection clusters 200.

[0064] The arrangement direction of the connection groups 210 of at least one connection cluster 200 is different from the arrangement direction of the connection groups 210 of other connection clusters 200. In other words, if a direction axis similar to the coordinate axis in a Cartesian coordinate system is drawn in all connection groups 210, and the direction axis passes through the center point of the lower end of all T-shaped connectors 2 in the connection group 210, then the arrangement direction axis of the connection group 210 of at least one connection cluster 200 intersects with the arrangement direction axis of the connection groups 210 of other connection clusters 200.

[0065] Example 1

[0066] Figure 5 The embodiment 1 of the anti-slip Velcro is shown. In this embodiment, the substrate 100 includes two substrate units 1 spliced ​​together, the two substrate units 1 are arranged on the left and the right, and two groups of connection clusters 200 are respectively arranged on the two substrate units 1. In the same connection cluster 200, all the connection groups 210 are parallel, and all the connection members 2 are arranged in an array.

[0067] The structure composed of the above-mentioned connection cluster 200 and the corresponding substrate unit 1 is the above-mentioned single hook Velcro, which can adopt the structure shown in Example 1 of the single hook Velcro, or the structure shown in Example 2 of the single hook Velcro, or other structural forms.

[0068] In this embodiment, the connecting member 2 is J-shaped or "7"-shaped, and the number of hook portions 22 on each connecting member 2 is one, and the hook portion 22 is a curved hook portion of the J-shaped or "7"-shaped structure.

[0069] The method for forming the Velcro comprises the following steps:

[0070] S1, an extrusion-molded Velcro blank 300, the Velcro blank 300 comprises a sheet-shaped substrate unit 1 and a plurality of connecting strips 5 arranged in parallel on the upper surface of the substrate unit 1, the cross section of the connecting strip 5 is J-shaped or "7"-shaped, and the connecting strip 5 comprises a vertical strip 51 arranged on the upper surface of the substrate unit 1 along the front-to-back direction and a fastening strip 52 arranged on one side of the upper end of the vertical strip 51;

[0071] S2, cutting the connecting strips 5, so that each connecting strip 5 has a plurality of processing notches 301 cut out, cutting the buckling strips 52 into a plurality of hooking portions 22, and cutting a plurality of elastic arms 21 on the vertical strips 51, so that the connecting cluster 200 can be formed on the substrate unit 1;

[0072] S3. Splice two substrate units 1 together so that the connection groups 210 on each substrate unit 1 are arranged along different directions. Preferably, the corresponding connection groups 210 on the two substrate units 1 together form a V-shaped structure.

[0073] The substrate units 1 are connected to each other by bonding, welding or the like, among which bonding is the best.

[0074] Example 2

[0075] Figure 6 Embodiment 2 of the anti-slip Velcro is shown. In this embodiment, this embodiment has a similar structure to embodiment 1. The only difference is that in this embodiment, a partition groove 302 is provided between two adjacent connection clusters 200 to separate the two.

[0076] The molding method of this embodiment comprises the following steps:

[0077] S1, an extrusion-molded Velcro blank 300, the Velcro blank 300 comprises a sheet-shaped substrate unit 1 and a plurality of connecting strips 5 arranged in parallel on the upper surface of the substrate unit 1, the cross section of the connecting strip 5 is J-shaped or "7"-shaped, and the connecting strip 5 comprises a vertical strip 51 arranged on the upper surface of the substrate unit 1 along the front-to-back direction and a fastening strip 52 arranged on one side of the upper end of the vertical strip 51;

[0078] S2, cutting the connecting strips 5, so that each connecting strip 5 has a plurality of processing notches 301 cut out, cutting the buckling strips 52 into a plurality of hooking portions 22, and cutting a plurality of elastic arms 21 on the vertical strips 51, so that the connecting cluster 200 can be formed on the substrate unit 1;

[0079] S3. Splice two substrate units 1 together so that the connection groups 210 on the two substrate units 1 are arranged in different directions, and the corresponding connection groups 210 on the two substrate units 1 together form a V-shaped structure; when the two substrate units 1 are spliced ​​together, the splicing edge of at least one substrate unit 1 protrudes from the connection cluster 200 thereon, so that a partition groove 302 is formed between two adjacent connection clusters 200 to separate the two.

[0080] The method of making the splicing edge of the substrate unit 1 protrude from the connection cluster 200 thereon is to cut off a part of the connection cluster 200, or to reserve a protruding portion at the edge of the substrate unit 1 when extruding the Velcro blank 300.

[0081] Example 3

[0082] Figure 7 The embodiment 3 of the anti-slip Velcro is shown. This embodiment has a similar structure to the embodiment 2, and the difference lies in the number and layout of the connection clusters 200. In this embodiment, the connection clusters 200 are three groups, wherein the first group of connection clusters 200 are arranged on the left, the second group and the third group of connection clusters 200 are arranged on the right side of the first connection cluster 200, the second group of connection clusters 200 is located above the third group of connection clusters 200, and any two adjacent connection clusters 200 are provided with a partition groove 302 separating the two.

[0083] Example 4

[0084] Fig.10 and Fig.16 Embodiment 4 of the utility model is shown. This embodiment has a similar structure to Embodiment 2, and the only difference lies in the shape of the connecting piece. In this embodiment, the connecting piece 2 is T-shaped, and the number of hook portions 22 on each connecting piece 2 is 2, and the two hook portions 22 are respectively arranged on both sides of the upper end of the elastic arm 21.

[0085] A method for forming a non-slip Velcro tape of this embodiment includes the following steps:

[0086] S1. Extrude and form the Velcro blank 300. The Velcro blank 300 includes a sheet-like base material unit 1 and a plurality of connecting strips 5 arranged in parallel on the upper surface of the base material unit 1. The cross-section of the connecting strip 5 is T-shaped. The connecting strip 5 includes a vertical strip 51 arranged along the front-back direction on the upper surface of the base material unit 1 and two fastening strips 52 arranged on both sides of the upper end of the vertical strip 51.

[0087] S2. Cut the connecting strip 5 so that a plurality of processing notches 301 are cut out on each connecting strip 5, cut the fastening strip 52 into a plurality of hook-and-loop parts 22, and at the same time cut out a plurality of elastic arms 21 on the vertical strip 51, then a connection cluster 200 can be formed on the base material unit 1.

[0088] S3. Splice at least two base material units 1 together so that the connection groups 210 on each base material unit 1 are arranged in different directions.

[0089] Refer to Figure 7 , in order to ensure that the Velcro can be stably adhered to each other, on the same connection group 210, the distance between adjacent dividing notches 301 is greater than the width of the dividing notch 301. The distance between the elastic arm 21 and the elastic arm 21 of the adjacent connection group 210 is A, the distance between the hook-and-loop part 22 and the hook-and-loop part 22 of the adjacent connection group 210 is B, and the left-right width of the hook-and-loop part 22 is W. The three values of A, B, and W satisfy the following relationship: B < W < A. Preferably, the ratio of W to B is 1.01 - 1.45, such as 1.05, 1.1, 1.3, 1.4. With such a design, the head of the T-shaped connecting piece 2 can be buckled between the two elastic arms 21 of another Velcro, and the fastening parts 22 on the two Velcros can be buckled together to prevent the two Velcros from separating.

[0090] Furthermore, the height of the connection group 210 is H, and the ratio of H to A is 0.9 - 1.3. Such as 0.9, 1.0, 1.1, 1.25. The angle C between the inner side of the倒扣 221 and the elastic arm 21 is 15° - 60°, such as 20°, 30°, 40°, 50°. With such a design of the倒扣 221, the buckling force is moderate and it is convenient for forming.

[0091] The cross-sectional shape of the upper end of the connecting piece is not limited, and it can also be Fig.17 the semicircular, triangular, trapezoidal, pentagonal, hexagonal shapes shown in Fig.18 the square, crescent shape shown in

[0092] Preferably, the fastening parts 22 are all倒扣s extending downward.

[0093] In this embodiment, two groups of connection clusters 200 are symmetrically arranged on the substrate 100. With such a design, when two identical pieces of Velcro are glued together, since the two groups of connection clusters 200 are symmetrically arranged, the user can align all the connection groups 210 on the Velcro with the grooves between the connection groups 210 on the other Velcro, so that the clamping force of all areas on the Velcro is basically the same, which is convenient for the user to use constant pressure to press different areas of the two Velcro together.

[0094] Example 5

[0095] Fig.11 The embodiment 5 of the utility model is shown, and the embodiment 5 has a similar structure to the embodiment 4, and the only difference is the overall shape of the Velcro. In the embodiment 4, the Velcro is square, and in the embodiment, the Velcro is a hexagon with a convex upper end and a concave lower end.

[0096] Example 6

[0097] Fig.12 The embodiment 6 of the utility model is shown. This embodiment has a similar structure to the embodiment 4, and the only difference is the layout of the two groups of connection clusters 200. In the embodiment 4, the connection groups 210 on both sides are connected end to end, and the connection groups 210 and the corresponding connection groups 210 form a V-shaped structure. In this embodiment, the connection groups 210 on the upper and lower sides are perpendicular to each other.

[0098] Example 7

[0099] Fig.13 Embodiment 5 of the present invention is shown. This embodiment has a similar structure to Embodiment 4, and the difference lies in the number and layout of the connection clusters 200. In this embodiment, the connection clusters 200 are three groups, wherein the first group of connection clusters 200 are arranged on the left, the second group and the third group of connection clusters 200 are arranged on the right side of the first connection cluster 200, the second group of connection clusters 200 is located above the third group of connection clusters 200, and any two adjacent connection clusters 200 are provided with a partition groove 302 separating the two.

[0100] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A non-slip Velcro, characterized in that: The invention comprises a sheet-like substrate (100) and at least two groups of connection clusters (200) arranged on the substrate (100), wherein the connection clusters (200) comprise a plurality of connection groups (210) arranged in the same direction, each connection group (210) comprises a plurality of connection members (2) arranged in a row at intervals, and the space between any two adjacent connection members (2) in the same connection group (210) is a processed notch (301), and the connection member (2) comprises an elastic arm (21) erected on the substrate (100) and at least one elastic arm (21) arranged on the elastic arm (21). ), the hook portion (22) being located on a side of the connector (2) opposite to an adjacent connection group (210) in the same connection cluster (200), or on a side of the connector (2) away from an adjacent connection group (210) in the same connection cluster (200), the arrangement direction axis of the connection group (210) of at least one connection cluster (200) intersects with the arrangement direction axis of the connection group (210) of other connection clusters (200), and the distance between adjacent processing notches (301) is greater than the width of the processing notches (301).

2. The anti-slip Velcro according to claim 1, characterized in that: The substrate (100) comprises at least two substrate units (1) spliced ​​together, and each group of connection clusters (200) is arranged on one substrate unit (1).

3. The anti-slip Velcro according to claim 1, characterized in that: The side surface of the connecting piece (2) facing the processed notch (301) is a plane.

4. The anti-slip Velcro according to claim 1, characterized in that: In the same connection cluster (200), all connection groups (210) are parallel and all connection elements (2) are arranged in an array.

5. The anti-slip Velcro according to claim 1, characterized in that: A partition groove (302) is provided between any two adjacent connection clusters (200) to separate the two.

6. The anti-slip Velcro according to claim 2, characterized in that: The connecting piece (2) is in a J-shape or a "7"-shape, and the number of hooking parts (22) on each connecting piece (2) is one.

7. The anti-slip Velcro according to claim 2, characterized in that: The connecting piece (2) is T-shaped, and each connecting piece (2) has two hook portions (22), and the two hook portions (22) are respectively arranged on two sides of the upper end of the elastic arm (21).

8. The anti-slip Velcro according to claim 7, characterized in that: The distance between the elastic arm (21) and the elastic arm (21) of the adjacent connection group (210) is A, the distance between the hook portion (22) and the hook portion (22) of the adjacent connection group (210) is B, the left and right width of the hook portion (22) is W, and A, B, and W satisfy the following relationship B: <W<A。 9. The anti-slip Velcro according to claim 8, characterized in that: The ratio of W to B is 1.01 to 1.

45.

10. The anti-slip Velcro according to claim 7, characterized in that: The hook portion (22) is an undercut extending downward.

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