Novel plastic steel sheet pile expansion water stop structure

Abstract

The utility model relates to the technical field of sheet piles, in particular to a novel plastic steel sheet pile expansion water stop structure which comprises sheet pile bodies, C-shaped lock catch parts and T-shaped lock catch parts are arranged on the two sides of the sheet pile bodies correspondingly, and the adjacent sheet pile bodies are connected through the C-shaped lock catch parts and the T-shaped lock catch parts. A water swelling water stop rubber strip is further clamped between the C-shaped lock catch part and the T-shaped lock catch part and arranged in the length direction of the sheet pile body, the T-shaped lock catch part comprises a connecting plate and a limiting plate, the connecting plate is perpendicularly connected to the middle of the limiting plate, a corner is formed between the side face of the connecting plate and the side face of the limiting plate, and the connecting plate is connected with the limiting plate. The water swelling water stop rubber strip at least covers the two opposite side faces and the two corners of the connecting plate and the two end faces of the limiting plate. The novel plastic steel sheet pile expansion water stop structure is better in water stop effect.

Description

Technical Field

[0001] The present application relates to the technical field of sheet piles, and in particular to a novel plastic-steel sheet pile expansion water-stopping structure. Background Art

[0002] Plastic steel sheet piles are high-strength new sheet piles made of polymer reinforced composite materials mixed with various additives and extruded in one go. Plastic steel sheet piles have many advantages such as light weight, high rigidity, impact resistance, corrosion resistance, anti-leakage, high durability, and ecological environmental protection. At present, they are actively promoted and used in flood control walls, river channel revetments, landscape hydrophilic revetments, embankment management, farmland roads, forest road slope stabilization measures, water-saving treatment, sewage treatment, partition walls in ecologically fragile areas, etc.

[0003] After searching, the Chinese patent application number: 202221793238.0 discloses a flood prevention ecological sheet pile, including a sheet pile body, a C-shaped locking part and a T-shaped locking part are respectively arranged on both sides of the sheet pile body, and adjacent sheet pile bodies are connected by the C-shaped locking part and the T-shaped locking part. A sealing strip is also arranged between the C-shaped locking part and the T-shaped locking part, and the sealing strip is fixed on the C-shaped locking part or the T-shaped locking part, and the sealing strip is arranged along the length direction of the C-shaped locking part or the T-shaped locking part. The sealing strip is protrudingly installed on the side of the T-shaped locking part away from the C-shaped locking part, and the sealing strip (4) and the T-shaped locking part are co-extruded as a whole.

[0004] With respect to the above-mentioned related technologies, the inventor believes that there are the following technical defects that need to be improved:

[0005] Common sealing strips are only installed on the side end surface of the T-shaped locking part, and the width and area of ​​the gap between the C-shaped locking part and the T-shaped locking part are relatively small. In particular, the corners of the T-shaped locking part are not covered and sealed by the sealing strip, and the water-stopping effect is poor. Utility Model Content

[0006] The present application provides a new plastic steel sheet pile expansion water-stopping structure to improve the following technical problems:

[0007] Common sealing strips are only installed on the side end surface of the T-shaped locking part, and the width and area of ​​the gap between the C-shaped locking part and the T-shaped locking part are relatively small. In particular, the corners of the T-shaped locking part are not covered and sealed by the sealing strip, and the water-stopping effect is poor.

[0008] The present application provides a novel plastic steel sheet pile expansion water-stopping structure, which adopts the following technical solution:

[0009] A novel plastic steel sheet pile expansion waterproofing structure comprises a sheet pile body, wherein two sides of the sheet pile body are respectively provided with a C-shaped locking part and a T-shaped locking part, and adjacent sheet pile bodies are connected by the C-shaped locking part and the T-shaped locking part, and a water-swellable waterproofing strip is sandwiched between the C-shaped locking part and the T-shaped locking part, and the water-swellable waterproofing strip is arranged along the length direction of the sheet pile body, and the T-shaped locking part comprises a connecting plate and a limiting plate, wherein the connecting plate is vertically connected to the middle part of the limiting plate, and a corner is formed between the side of the connecting plate and the side of the limiting plate, and the water-swellable waterproofing strip at least covers two opposite side surfaces of the connecting plate, the two corners and the two end surfaces of the limiting plate, and the water-swellable waterproofing strip (3) has a full expansion time of more than 72 hours and an expansion volume increased by at least 50%.

[0010] In an achievable technical solution of the present application, two water-swellable waterproofing strips are provided, one side of the water-swellable waterproofing strip is fixedly connected to the side surface of the connecting plate, and the other side of the water-swellable waterproofing strip is fixedly connected to the end surface of the limiting plate.

[0011] In an achievable technical solution of the present application, a first clamping groove is provided on the side of the connecting plate, a first clamping portion is integrally formed on the water-swellable water-stop rubber strip, and the first clamping portion is clamped and fixed in the first clamping groove; a second clamping groove is provided on the end face of the limiting plate, a second clamping portion is also integrally formed on the water-swellable water-stop rubber strip, and the second clamping portion is clamped and fixed in the second clamping groove.

[0012] In an achievable technical solution of the present application, the cross-sections of the first clamping portion and the first clamping groove are matching T-shaped structures or dovetail structures, and the cross-sections of the second clamping portion and the second clamping groove are matching T-shaped structures or dovetail structures.

[0013] In an achievable technical solution of the present application, there is a water-swellable water-stop rubber strip, one side of the water-swellable water-stop rubber strip is fixedly connected to one side of the connecting plate, the other side of the water-swellable water-stop rubber strip is fixedly connected to the other side of the connecting plate, and the water-swellable water-stop rubber strip completely wraps the limiting plate.

[0014] In an achievable technical solution of the present application, third clamping grooves are respectively provided on both side surfaces of the connecting plate, and third clamping parts are respectively integrally formed on both sides of the water-swellable waterproofing strip, and the third clamping parts are clamped and fixed in the third clamping grooves.

[0015] In an achievable technical solution of the present application, the cross-sections of the third clamping portion and the third clamping groove are matched T-shaped structures or dovetail structures.

[0016] In an achievable technical solution of the present application, the angle at the corner is between 50-120 degrees.

[0017] In an achievable technical solution of the present application, a plurality of first reinforcing protrusions spaced apart and arranged along its length direction are integrally formed on the inner surface of the sheet pile body, and a plurality of second reinforcing protrusions spaced apart and arranged along its length direction are integrally formed on the outer surface of the sheet pile body.

[0018] In an achievable technical solution of the present application, the first reinforcing protrusion and the second reinforcing protrusion correspond to each other one by one and are symmetrically arranged, and the cross-sections of the first reinforcing protrusion and the second reinforcing protrusion are both arcuate.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] When the water-swellable waterstop strip is not in contact with water, its volume is smaller in a contracted state, which facilitates the assembly and connection between the C-shaped locking part and the T-shaped locking part, ensuring that the structure of the water-swellable waterstop strip is not damaged by excessive friction at the sheet pile connection during the piling process, thereby ensuring the water-stopping effect of the water-swellable waterstop strip. After the water-swellable waterstop strip comes into contact with water, its volume is larger in an expanded state (the volume increases by at least 50%), which is sufficient to seal the gap between the C-shaped locking part and the T-shaped locking part, thereby achieving a good water-stopping sealing effect; and it does not expand immediately after coming into contact with water, and the final expansion effect can only be achieved after at least 72 hours of contact with water.

[0021] Moreover, the water-swelling waterproof strip covers at least the two corners of the T-locking part, and its width and area are at least 3-5 times that of the conventional design. That is, more gaps are filled between the C-locking part and the T-locking part during water-stopping and sealing, and the water-stopping effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a structural schematic diagram of the new plastic-steel sheet pile expansion water-stopping structure of Example 1 of the present application.

[0024] Figure 2It is a schematic diagram of the structure of the water-swellable waterproofing strip in Example 1 of the present application when it is not in contact with water.

[0025] Figure 3 It is a schematic diagram of the structure of the water-swellable waterproofing strip in Example 1 of the present application after it comes into contact with water.

[0026] Figure 4 It is a structural schematic diagram of the new plastic-steel sheet pile expansion water-stopping structure of Example 2 of the present application.

[0027] Figure 5 It is a schematic diagram of the structure of the water-swellable waterproofing strip in Example 2 of the present application when it is not in contact with water.

[0028] Figure 6 It is a schematic diagram of the structure of the water-swellable waterproofing strip in Example 2 of the present application after it comes into contact with water.

[0029] Description of reference numerals:

[0030] 100. Sheet pile body;

[0031] 1. C-shaped locking part;

[0032] 2. T-shaped locking part; 21. connecting plate; 211. first clamping groove; 212. third clamping groove; 22. limiting plate; 221. second clamping groove;

[0033] 3. Water-swellable waterproofing strip; 31. first clamping portion; 32. second clamping portion; 33. third clamping portion;

[0034] 4. The first reinforcement protrusion;

[0035] 5. The second reinforcement protrusion. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0038] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] The following is combined with Figure 1-6 This application is described in further detail.

[0041] Embodiment 1

[0042] The first embodiment of the present application discloses a novel plastic steel sheet pile expansion water stop structure. Figure 1-3 The new plastic-steel sheet pile expansion water-stop structure includes a sheet pile body 100, and a C-shaped locking portion 1 and a T-shaped locking portion 2 are respectively arranged on both sides of the sheet pile body 100. Adjacent sheet pile bodies 100 are connected by the C-shaped locking portion 1 and the T-shaped locking portion 2. A water-swellable waterproofing strip 3 is also sandwiched between the C-shaped locking portion 1 and the T-shaped locking portion 2. The water-swellable waterproofing strip 3 is arranged along the length direction of the sheet pile body 100. The T-shaped locking portion 2 includes a connecting plate 21 and a limiting plate 22. The connecting plate 21 is vertically connected to the middle part of the limiting plate 22. A corner is formed between the side of the connecting plate 21 and the side of the limiting plate 22. The water-swellable waterproofing strip 3 at least covers two opposite side surfaces, two corners and two end surfaces of the limiting plate 22 of the connecting plate 21.

[0043] The material used for the water-swellable waterproofing strip 3 is one of swelling rubber, polymer water-absorbing material and its modified material. The water-swellable waterproofing strip 3 fully expands in more than 72 hours, and the expansion volume increases by at least 50%.

[0044] In this embodiment, two water-swellable waterproofing strips 3 are provided, one side of the water-swellable waterproofing strip 3 is fixedly connected to the side surface of the connecting plate 21 , and the other side of the water-swellable waterproofing strip 3 is fixedly connected to the end surface of the limiting plate 22 .

[0045] In order to ensure the installation stability of the water-swellable waterproof strip 3, the water-swellable waterproof strip 3 can be co-extruded with the sheet pile body 100. Furthermore, a first clamping groove 211 is provided on the side of the connecting plate 21, and a first clamping portion 31 is integrally formed on the water-swellable waterproof strip 3, and the first clamping portion 31 is clamped and fixed in the first clamping groove 211; a second clamping groove 221 is provided on the end face of the limiting plate 22, and a second clamping portion 32 is also integrally formed on the water-swellable waterproof strip 3, and the second clamping portion 32 is clamped and fixed in the second clamping groove 221.

[0046] Specifically, the cross-sections of the first clamping portion 31 and the first clamping groove 211 are matched T-shaped structures (or dovetail structures), and the cross-sections of the second clamping portion 32 and the second clamping groove 221 are matched T-shaped structures (or dovetail structures).

[0047] In this embodiment, the included angle at the corner is between 50-120 degrees, and the preferred included angle at the corner is 80 degrees.

[0048] In order to improve the structural strength of the sheet pile body 100 itself and make it less prone to bending and deformation, a plurality of first reinforcing protrusions 4 are integrally formed on the inner surface of the sheet pile body 100 and arranged along its length direction at intervals, and a plurality of second reinforcing protrusions 5 are integrally formed on the outer surface of the sheet pile body 100 and arranged along its length direction at intervals, and the first reinforcing protrusions 4 and the second reinforcing protrusions 5 correspond to each other one by one and are arranged symmetrically, and the cross-sections of the first reinforcing protrusions 4 and the second reinforcing protrusions 5 are both arcuate.

[0049] The beneficial technical effects of the new plastic-steel sheet pile expansion water-stopping structure of the embodiment of the present application are roughly as follows:

[0050] When the water-swelling waterproofing strip 3 is not in contact with water, it is in a contracted state with a small volume, which facilitates the assembly connection between the C-shaped locking part 1 and the T-shaped locking part 2, ensuring that the structure of the water-swelling waterproofing strip 3 is not damaged by excessive friction at the sheet pile connection during the piling process, and ensuring the waterproof effect of the water-swelling waterproofing strip 3. After the water-swelling waterproofing strip 3 is in contact with water, it is in an expanded state with a large volume (the volume increases by at least 50%), which is sufficient to seal the gap between the C-shaped locking part 1 and the T-shaped locking part 2, and achieve a good waterproof sealing effect;

[0051] Moreover, the water-swellable waterproofing strip 3 covers at least the two corners on the T-shaped locking part 2, and its width and area are at least 3-5 times that of the conventional design, that is, more gaps are filled between the C-shaped locking part 1 and the T-shaped locking part 2 during water-stopping and sealing, and the waterproof effect is better.

[0052] Embodiment 2

[0053] The second embodiment of the present application discloses a novel plastic steel sheet pile expansion water stop structure. Figure 4-6 , which is different from the first embodiment in that:

[0054] A water-swellable waterproof strip 3 is provided, one side of the water-swellable waterproof strip 3 is fixedly connected to one side of the connecting plate 21, and the other side of the water-swellable waterproof strip 3 is fixedly connected to the other side of the connecting plate 21, and the water-swellable waterproof strip 3 completely wraps the limiting plate 22.

[0055] In order to ensure the installation stability of the water-swellable waterproof strip 3, the water-swellable waterproof strip 3 can be co-extruded with the sheet pile body 100, wherein the two side surfaces of the connecting plate 21 are respectively provided with third clamping grooves 212, and the two sides of the water-swellable waterproof strip 3 are respectively integrally formed with third clamping parts 33, and the third clamping parts 33 are clamped and fixed in the third clamping grooves 212.

[0056] Specifically, the cross-sections of the third clamping portion 33 and the third clamping groove 212 are matched T-shaped structures (or dovetail structures).

[0057] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the application should be included in the protection scope of the present application.

Claims

1. A novel plastic steel sheet pile expansion water-stopping structure, comprising a sheet pile body (100), wherein two sides of the sheet pile body (100) are respectively provided with a C-shaped locking portion (1) and a T-shaped locking portion (2), and adjacent sheet pile bodies (100) are connected by the C-shaped locking portion (1) and the T-shaped locking portion (2), characterized in that: A water-swellable waterproofing strip (3) is also sandwiched between the C-shaped locking portion (1) and the T-shaped locking portion (2). The water-swellable waterproofing strip (3) is arranged along the length direction of the sheet pile body (100). The T-shaped locking portion (2) includes a connecting plate (21) and a limiting plate (22). The connecting plate (21) is vertically connected to the middle of the limiting plate (22). A corner is formed between the side of the connecting plate (21) and the side of the limiting plate (22). The water-swellable waterproofing strip (3) at least covers two opposite side surfaces of the connecting plate (21), the two corners and the two end surfaces of the limiting plate (22). The water-swellable waterproofing strip (3) takes more than 72 hours to fully expand and its expansion volume increases by at least 50%.

2. The new plastic steel sheet pile expansion water-stopping structure according to claim 1 is characterized in that: Two water-swellable waterproofing strips (3) are provided, one side of the water-swellable waterproofing strip (3) is fixedly connected to the side surface of the connecting plate (21), and the other side of the water-swellable waterproofing strip (3) is fixedly connected to the end surface of the limiting plate (22).

3. The new plastic steel sheet pile expansion water-stopping structure according to claim 2 is characterized in that: The side surface of the connecting plate (21) is provided with a first clamping groove (211), and the water-swellable waterproofing rubber strip (3) is integrally formed with a first clamping portion (31), and the first clamping portion (31) is clamped and fixed in the first clamping groove (211); the end surface of the limiting plate (22) is provided with a second clamping groove (221), and the water-swellable waterproofing rubber strip (3) is also integrally formed with a second clamping portion (32), and the second clamping portion (32) is clamped and fixed in the second clamping groove (221).

4. The new plastic steel sheet pile expansion water-stopping structure according to claim 3 is characterized in that: The cross-sections of the first clamping portion (31) and the first clamping groove (211) are matched T-shaped structures or dovetail structures, and the cross-sections of the second clamping portion (32) and the second clamping groove (221) are matched T-shaped structures or dovetail structures.

5. The new plastic steel sheet pile expansion water-stopping structure according to claim 1 is characterized in that: The water-swellable waterproofing strip (3) is provided with one side of the water-swellable waterproofing strip (3) being fixedly connected to one side of the connecting plate (21), and the other side of the water-swellable waterproofing strip (3) being fixedly connected to the other side of the connecting plate (21), and the water-swellable waterproofing strip (3) completely wraps the limiting plate (22).

6. The novel plastic steel sheet pile expansion water-stopping structure according to claim 5 is characterized in that: The two side surfaces of the connecting plate (21) are respectively provided with third clamping grooves (212), and the two sides of the water-swellable waterproofing strip (3) are respectively integrally formed with third clamping portions (33), and the third clamping portions (33) are clamped and fixed in the third clamping grooves (212).

7. The novel plastic steel sheet pile expansion water-stopping structure according to claim 6 is characterized in that: The cross-sections of the third clamping portion (33) and the third clamping groove (212) are matched T-shaped structures or dovetail structures.

8. The novel plastic-steel sheet pile expansion water-stopping structure according to claim 1 is characterized in that: The included angle at the corner is between 50 and 120 degrees.

9. The novel plastic-steel sheet pile expansion water-stopping structure according to claim 1 is characterized in that: A plurality of first reinforcing protrusions (4) spaced apart and arranged along its length are integrally formed on the inner surface of the sheet pile body (100), and a plurality of second reinforcing protrusions (5) spaced apart and arranged along its length are integrally formed on the outer surface of the sheet pile body (100).

10. The novel plastic-steel sheet pile expansion water-stopping structure according to claim 9 is characterized in that: The first reinforcing protrusion (4) and the second reinforcing protrusion (5) correspond to each other one by one and are symmetrically arranged; the cross sections of the first reinforcing protrusion (4) and the second reinforcing protrusion (5) are both arcuate.

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