Earthwork standard room with node protection structure

Abstract

The utility model relates to the technical field of geocells, in particular to a geocell with a node protection structure. The geocell comprises a belt body and a node connecting piece, wherein the node connecting piece comprises an inserting rod; a plurality of mutually parallel kerfs are formed in the belt body at the nodes, the length direction of the kerfs is parallel to the length direction of the belt body, and the kerfs penetrate through the belt body in the thickness direction of the belt body; at the node, the insertion rods are inserted into the front and back surfaces of the belt body in a staggered manner through the kerfs; the node protection structure is located outside the node and wraps the belt body at the node, and the kerf on the belt body at the node is located inside the node protection structure. According to the design of the geocell, the belt body at the joint of the geocell can be protected; in addition, workers can be prevented from being scratched by the joint structure of the geocell.

Description

Technical Field

[0001] The utility model relates to the technical field of geocells, in particular to a geocell provided with a node protection structure. Background Art

[0002] In the prior art, the nodes of the geocell are generally connected by welding, riveting, U-shaped buckle connection, etc. to connect two belts, thereby forming the node structure of the geocell.

[0003] However, the node structure formed by welding and riveting has poor mechanical properties (for example, the peel strength at the node is much lower than the tensile strength of the belt itself). When the geocell is subjected to a large lateral tensile force, the node is very easy to be damaged, causing the two belts at the node to separate, resulting in the destruction of the overall mesh structure of the geocell, and unable to continue to effectively constrain the filler in the cell; although the geocell node formed by connecting the two belts with a U-shaped buckle has greatly improved mechanical properties compared to the geocell node formed by welding and riveting, such a node structure has no protective treatment. On the one hand, the U-shaped buckle is easy to scratch the staff, and on the other hand, the belt at the node becomes uneven due to the insertion of the U-shaped buckle, so that during the use of the geocell, the filler in the cell is easy to wear the belt at the node, which leads to failure of the node. Utility Model Content

[0004] The utility model aims to provide a geocell with a node protection structure, which can at least partially overcome the above-mentioned technical problems, specifically, can protect the belt body at the node of the geocell; in addition, it can also prevent workers from being scratched by the node structure of the geocell.

[0005] The utility model proposes a geocell with a node protection structure, the geocell includes a belt body and a node connector, the node connector includes an insertion rod; a plurality of mutually parallel slits are opened on the belt body located at the node, the length direction of the slits is parallel to the length direction of the belt body, and the slits penetrate the belt body along the thickness direction of the belt body; at the node, the insertion rods are staggered and inserted into the front and back sides of the belt body through the slits; the node protection structure is located outside the node and covers the belt body at the node, and the slits on the belt body at the node are located inside the node protection structure.

[0006] Furthermore, the node protection structure is fixedly connected to the belt body and / or the insertion rod at the node.

[0007] Optionally, the node protection structure includes a first fastening member and a second fastening member that can be fastened to each other, and the first fastening member and the second fastening member that are fastened to each other clamp the belt body at the node inside.

[0008] Furthermore, for any node, reinforcing ribs are provided at both ends of the slit in the length direction at the node, and the reinforcing ribs are provided along the width direction of the belt body.

[0009] Furthermore, the reinforcing ribs are located inside the node protection structure.

[0010] Furthermore, a stopper is provided at one end of the insertion rod, and the diameter of the stopper is larger than the diameter of the insertion rod; an introduction part is provided at the other end of the insertion rod, and the diameter of the introduction part gradually decreases in a direction away from the stopper.

[0011] Furthermore, a snap-in groove is provided on the outer peripheral wall of the introduction portion near one end of the insertion rod, and the node connector also includes a stop ring that can be installed in cooperation with the snap-in groove, and the outer diameter of the stop ring is greater than the diameter of the insertion rod.

[0012] Furthermore, a plurality of limiting units are arranged on the peripheral wall of the insertion rod.

[0013] Furthermore, the limiting unit includes a first limiting protrusion located on one side of the insertion rod and a second limiting protrusion located on the other side of the insertion rod, and the distance between an end of the first limiting protrusion away from the stop portion and the stop portion is less than or equal to the distance between an end of the second limiting protrusion close to the stop portion and the stop portion; each of the limiting units is distributed in an array along the length direction of the insertion rod.

[0014] Furthermore, the radial dimension of the first limiting protrusion near one end of the stop portion is greater than the thickness of the belt body at the node, and the radial dimension of the first limiting protrusion gradually decreases in the direction away from the stop portion; the radial dimension of the second limiting protrusion near one end of the stop portion is greater than the thickness of the belt body at the node, and the radial dimension of the second limiting protrusion gradually decreases in the direction away from the stop portion.

[0015] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0016] 1. The utility model provides a geocell with a node protection structure, in which the node is covered by the node protection structure. After the geocell is laid, the node protection structure can prevent the belt section at the node from contacting the sand and gravel in the cell, thereby avoiding friction and wear between the two, and can effectively protect the belt at the node; in addition, it can also reduce the risk of scratching workers at the node; and the slit is also located inside the node protection structure. When the node is subjected to tension along the thickness direction of the belt, the force on the belt will be evenly applied to the plug rod and the node protection structure, and then the node protection structure can also bear part of the external force, so that the mechanical properties of the node are further improved, and the peeling strength at the node is greatly improved;

[0017] 2. The utility model provides a geocell with a node protection structure. At the node, after the rod is inserted, the belt body as a whole is restricted between the stop part and the stop ring. At the same time, each strip separated by the slit is restricted by the first limiting protrusion and the second limiting protrusion in turn, so that each strip cannot move toward the stop ring. On the one hand, it can further prevent the belt body from slipping along the length direction of the rod. On the other hand, the movement of each strip at the node is restricted by the first limiting protrusion and the second limiting protrusion, which is conducive to setting the node protection structure at the node. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0019] Figure 1 It is a schematic diagram of a belt body at a node drawn according to an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of a single insertion rod interlaced and inserted into a belt body through slits according to an embodiment of the utility model;

[0021] Figure 3 It is a schematic diagram of a node protection structure provided at a node according to an embodiment of the utility model;

[0022] Figure 4 Based on Figure 3 Draw the node section view;

[0023] Figure 5 Based on Figure 4 A partial magnified view of the drawn A area;

[0024] Figure 6 Based on Figure 3 Another cross-sectional view of the node is drawn;

[0025] Figure 7 It is a schematic diagram of two insertion rods interlaced and inserted into the belt body through slits according to an embodiment of the utility model;

[0026] Figure 8 A node cross-sectional view drawn according to an embodiment of the utility model when there are two insertion rods;

[0027] Fig. 9 Another cross-sectional view of a node when there are two inserted rods according to an embodiment of the utility model;

[0028] Fig.10 It is a three-dimensional structural schematic diagram of the insertion rod and the stop ring drawn according to the embodiment;

[0029] Fig.11 FIG. 4 is another cross-sectional view of a node according to an embodiment.

[0030] Marks and corresponding parts names in the attached drawings:

[0031] 1-belt body; 11-slit; 12-reinforcement rib; 2-insertion rod; 21-stop portion; 22-introduction portion; 221-clamping groove; 231-first limiting protrusion; 232-second limiting protrusion; 3-node protection structure; 31-groove; 4-stop ring. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in combination with the embodiments and drawings. The schematic implementation mode and description of the utility model are only used to explain the utility model and are not intended to limit the utility model. It should be noted that the utility model is already in the actual development and use stage.

[0033] In the prior art, the nodes of the geocell are generally connected by welding, riveting, U-shaped buckle connection, etc. to connect two belts, thereby forming the node structure of the geocell.

[0034] However, the node structure formed by welding and riveting has poor mechanical properties (for example, the peel strength at the node is much lower than the tensile strength of the belt itself). When the geocell is subjected to a large lateral tensile force, the node is very easy to be damaged, causing the two belts at the node to separate, resulting in the destruction of the overall mesh structure of the geocell, and unable to continue to effectively constrain the filler in the cell; although the geocell node formed by connecting the two belts with a U-shaped buckle has greatly improved mechanical properties compared to the geocell node formed by welding and riveting, such a node structure has no protective treatment. On the one hand, the U-shaped buckle is easy to scratch the staff, and on the other hand, the belt at the node becomes uneven due to the insertion of the U-shaped buckle, so that during the use of the geocell, the filler in the cell is easy to wear the belt at the node, which leads to failure of the node.

[0035] To this end, the utility model proposes a geocell with a node protection structure. By setting the node protection structure at the node, the belt body at the node of the geocell can be protected. In addition, the workers can be prevented from being scratched by the node structure of the geocell.

[0036] Embodiment 1:

[0037] Please refer to Figures 1 to 6 , this embodiment provides a geocell with a node protection structure, the geocell includes a belt body 1 and a node connector, the node connector includes an insertion rod 2;

[0038] A plurality of mutually parallel slits 11 are provided on the belt body 1 at the nodes, the length direction of the slits 11 is parallel to the length direction of the belt body 1, and the slits 11 penetrate the belt body 1 along the thickness direction of the belt body 1;

[0039] At this node, the insertion rods 2 are interlaced and inserted into the front and back surfaces of the belt body 1 through the slits 11;

[0040] The node protection structure 3 is located outside the node and covers the belt body 1 at the node. The slit 11 on the belt body 1 at the node is located inside the node protection structure 3 .

[0041] Specifically, the node protection structure 3 is fixedly connected to the belt body 1 and / or the insertion rod 2 at the node. In this case, the node protection structure 3 can be formed by injection molding.

[0042] Alternatively, the node protection structure 3 includes a first fastening member and a second fastening member that can be fastened to each other, and the first fastening member and the second fastening member that are fastened to each other clamp the belt body 1 at the node inside. It should be understood that in this case, the first fastening member and the second fastening member should be able to be reliably locked after being fastened to each other (i.e., reliably fastened and not separated).

[0043] Preferably, if Figures 3 to 6 As shown, a groove 31 is provided on the node protection structure 3 along the thickness direction of the belt body 1. As a result, the wall thickness of the node protection structure 3 can be made uniform, and the density, quality, and mechanical properties of each part of the node protection structure 3 with uniform wall thickness are consistent (when the node protection structure 3 is a plastic part, it can also avoid deformation such as warping of the node protection structure 3 during the cooling process after injection molding), ensuring the quality of the node protection structure 3; in addition, the groove 31 can also make the connection between the filler in each cell and the node protection structure 3 stronger after the geocell is laid (the filler enters the groove 31), which is conducive to avoiding the geocell from being separated from the filler during use (separated along the width direction of the belt body 1).

[0044] Accordingly, the node is covered inside by the node protection structure 3. After the geocell is laid, the node protection structure 3 can prevent the belt body 1 section at the node from contacting the sand and gravel in the cell, thereby avoiding friction and wear between the two, and can effectively protect the belt body 1 at the node; in addition, it can also reduce the risk of scratching workers at the node. In addition, the slit 11 is also located inside the node protection structure 3. When the node is subjected to lateral tension (referring to the tension in the thickness direction of the belt body 1 at the node), the force on the belt body 1 will be evenly applied to the plug 2 and the node protection structure 3, and then the node protection structure 3 can also bear part of the external force, so that the mechanical properties of the node are further improved, and the peeling strength at the node is greatly improved.

[0045] Obviously, for any node, the number of the inserted rod 2 can be one or more. Figure 7 , Figure 8 As shown, at the node, the slit 11 separates the belt body 1 into multiple strips along the width direction. When there are two inserted rods 2, for the same strip, the two inserted rods 2 are respectively located on both sides of the thickness direction of the strip. When there are multiple inserted rods 2, after the inserted rods 2 are interlaced and inserted into the belt body 1 through the slits 11, there are gaps between the inserted rods 2 and between the inserted rods 2 and the belt body 1. The node protection structure 3 is formed by injection molding, so that the node protection structure 3 can be combined with the inserted rods 2 and the belt body 1 as a whole (during the injection molding process, the molten plastic fills into the gaps between the inserted rods 2 and between the inserted rods 2 and the belt body 1, and forms an integral structure after solidification), thereby further improving the strength of the node and preventing the node protection structure 3 from collapsing when the node is subjected to force.

[0046] Preferably, if Figure 1 , Figures 4 to 6 As shown, for any node, both ends of the slit 11 in the length direction at the node are provided with reinforcing ribs 12, and the reinforcing ribs 12 are provided along the width direction of the belt body 1. More preferably, the reinforcing ribs 12 are located inside the node protection structure 3.

[0047] Therefore, by providing the reinforcing ribs 12, it is possible to directly limit the further development of the cut 11 when the belt body 1 is subjected to force, especially when the node is subjected to external force along the width direction of the belt body 1, the provided reinforcing ribs 12 can effectively prevent the belt body 1 from further tearing along the cut 11, thereby facilitating the integrity of the geocell. By also sandwiching the reinforcing ribs 12 inside the node protection structure 3, the node protection structure 3 can be used to protect the reinforcing ribs 12 (mainly to prevent the reinforcing ribs 12 from being worn), and when the node is subjected to external force along the width direction of the belt body 1, the node protection structure 3 can be used to jointly resist the external force.

[0048] Preferably, the reinforcing ribs 12 are selected from one or more of steel strands, steel wires with a threaded steel structure, glass fibers, carbon fibers, and braided cotton threads.

[0049] This can improve the tensile strength of the reinforcing ribs 12 themselves, thereby ensuring that the reinforcing ribs 12 can effectively resist external forces along the width direction of the belt body 1, and even if stress concentration occurs at the cut slit 11, it can ensure that the belt body 1 will not be torn along the width direction.

[0050] Embodiment 2:

[0051] like Fig.10 , Fig.11 As shown, this embodiment is based on Embodiment 1, except that, in this embodiment:

[0052] A stopper 21 is provided at one end of the insertion rod 2, and the diameter of the stopper 21 is larger than the diameter of the insertion rod 2;

[0053] An introduction portion 22 is disposed at the other end of the insertion rod 2 , and a diameter of the introduction portion 22 gradually decreases in a direction away from the stop portion 21 .

[0054] Accordingly, when the rod 2 is installed on the belt body 1 to form a node structure of the geocell, the strips separated by the slits 11 at the node positions can be pushed alternately to the front and back sides of the belt body 1, and then the rod 2 is inserted (refer to Fig.11 , insert the insertion rod 2 into the belt body 1 from left to right); during this process, the introduction portion 22 can facilitate the smooth insertion of the insertion rod 2 (the introduction portion 22 is inserted first), and the stopper portion 21 can prevent the insertion rod 2 from being over-inserted, thereby preventing it from slipping along the insertion direction.

[0055] Preferably, a snap-in groove 221 is provided on the outer peripheral wall of the introduction part 22 near one end of the insertion rod 2, and the node connector also includes a stop ring 4 that can be installed in cooperation with the snap-in groove 221, and the outer diameter of the stop ring 4 is greater than the diameter of the insertion rod 2. It should be understood that the stop ring 4 is an elastic ring, and after the insertion rod 2 is inserted into the belt body 1, the stop ring 4 is inserted into the snap-in groove 221 from the end of the introduction part 22 away from the stop part 21 along the length direction of the insertion rod 2 (during the insertion process, the stop ring 4 is expanded, and after being inserted into the snap-in groove 221, the size is restored to prevent it from falling out).

[0056] Accordingly, by installing the stop ring 4 on the inserted rod 2, the belt body 1 can be restricted from escaping from the introduction portion 22 along the length direction of the rod 2, thereby the belt body 1 at the node is restricted between the stop portion 21 and the stop ring 4.

[0057] Embodiment 3:

[0058] like Fig.10 , Fig.11 As shown, this embodiment is based on Embodiment 1, except that, in this embodiment:

[0059] A plurality of limiting units are arranged on the peripheral wall of the insertion rod 2 .

[0060] Specifically, the limiting unit includes a first limiting protrusion 231 located on one side of the insertion rod 2 and a second limiting protrusion 232 located on the other side of the insertion rod 2, and the distance between the end of the first limiting protrusion 231 away from the stop portion 21 and the stop portion 21 is less than or equal to the distance between the end of the second limiting protrusion 232 close to the stop portion 21 and the stop portion 21;

[0061] The limiting units are distributed in an array along the length direction of the insertion rod 2 .

[0062] It should be understood that each first limiting protrusion 231 and each second limiting protrusion 232 corresponds to the strip separated by the slit 11 one by one, and the limiting effect is achieved by the end surface of each first limiting protrusion 231 and each second limiting protrusion 232 facing the stopper 21 abutting against the edge in the width direction of the strip. Obviously, the size of each first limiting protrusion 231 and each second limiting protrusion 232 along the length direction of the insertion rod 2 should be less than or equal to the spacing between adjacent slits 11 at the node. Fig.11 As shown, when the number of strips is an even number, since the stop portion 21 replaces a second limiting protrusion 232, an additional first limiting protrusion 231 needs to be arrayed after the limiting unit array; obviously, if the number of strips is an odd number, then when the stop portion 21 replaces a second limiting protrusion 232, there is no need to add an additional first limiting protrusion 231 after the limiting unit array.

[0063] Accordingly, at the node, after the insertion rod 2 is inserted, the belt body 1 as a whole is restricted between the stop portion 21 and the stop ring 4. At the same time, the strips separated by the slit 11 are restricted in turn by the first limiting protrusion 231 and the second limiting protrusion 232, so that the strips cannot move toward the stop ring 4. On the one hand, it can further prevent the belt body 1 from slipping along the length direction of the insertion rod 2. On the other hand, the movement of the strips at the node is restricted by the first limiting protrusion 231 and the second limiting protrusion 232, which is conducive to setting the node protection structure 3 at the node (specifically, ensuring that the strips are in the correct position when the node protection structure 3 is set at the node).

[0064] More preferably, the radial dimension of the first limiting protrusion 231 at one end close to the stop portion 21 is greater than the thickness of the belt body 1 at the node, and the radial dimension of the first limiting protrusion 231 gradually decreases in the direction away from the stop portion 21;

[0065] The radial dimension of the second limiting protrusion 232 at one end close to the stop portion 21 is greater than the thickness of the belt body 1 at the node, and the radial dimension of the second limiting protrusion 232 gradually decreases in a direction away from the stop portion 21 .

[0066] Accordingly, during the insertion of the insertion rod 2, the first limiting protrusion 231 and the second limiting protrusion 232 will not hinder the insertion action, which is conducive to the smooth insertion of the insertion rod 2.

[0067] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A geocell with a node protection structure, the geocell comprising a belt body (1) and a node connector, the node connector comprising an insertion rod (2); characterized in that: A plurality of mutually parallel slits (11) are provided on the belt body (1) at the nodes, the length direction of the slits (11) is parallel to the length direction of the belt body (1), and the slits (11) penetrate the belt body (1) along the thickness direction of the belt body (1); At the node, the insertion rods (2) are interlaced and inserted into the front and back surfaces of the belt body (1) through the slits (11); The node protection structure (3) is located outside the node and covers the belt body (1) at the node, and the slit (11) on the belt body (1) at the node is located inside the node protection structure (3); A stopper (21) is provided at one end of the insertion rod (2), and the diameter of the stopper (21) is greater than the diameter of the insertion rod (2); An introduction portion (22) is provided at the other end of the insertion rod (2), and the diameter of the introduction portion (22) gradually decreases in a direction away from the stop portion (21).

2. The geocell according to claim 1, characterized in that: The node protection structure (3) is fixedly connected to the belt body (1) and / or the insertion rod (2) at the node.

3. The geocell according to claim 1, characterized in that: The node protection structure (3) comprises a first fastening member and a second fastening member that can be fastened to each other, and the first fastening member and the second fastening member that are fastened to each other clamp the belt body (1) at the node inside.

4. The geocell according to claim 1, characterized in that: For any node, reinforcing ribs (12) are provided at both ends of the slit (11) in the length direction at the node, and the reinforcing ribs (12) are provided along the width direction of the belt body (1).

5. The geocell according to claim 4, characterized in that: The reinforcing ribs (12) are located inside the node protection structure (3).

6. The geocell according to claim 1, characterized in that: A snap-fit ​​groove (221) is provided on the outer peripheral wall of the introduction portion (22) close to one end of the insertion rod (2), and the node connection member further comprises a stop ring (4) capable of being mounted in cooperation with the snap-fit ​​groove (221), wherein the outer diameter of the stop ring (4) is greater than the diameter of the insertion rod (2).

7. The geocell according to claim 1, characterized in that: A plurality of limiting units are arranged on the peripheral wall of the insertion rod (2).

8. The geocell according to claim 7, characterized in that: The limiting unit comprises a first limiting protrusion (231) located on one side of the insertion rod (2) and a second limiting protrusion (232) located on the other side of the insertion rod (2), and the distance between an end of the first limiting protrusion (231) away from the stop portion (21) and the stop portion (21) is less than or equal to the distance between an end of the second limiting protrusion (232) close to the stop portion (21) and the stop portion (21); The limiting units are distributed in an array along the length direction of the insertion rod (2).

9. The geocell according to claim 8, characterized in that: The radial dimension of one end of the first limiting protrusion (231) close to the stop portion (21) is greater than the thickness of the belt body (1) at the node, and the radial dimension of the first limiting protrusion (231) gradually decreases in a direction away from the stop portion (21); The radial dimension of the second limiting protrusion (232) at one end close to the stop portion (21) is greater than the thickness of the belt body (1) at the node, and the radial dimension of the second limiting protrusion (232) gradually decreases in a direction away from the stop portion (21).

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