A grout-proof strip for precast concrete components

Abstract

This utility model discloses a grout-proof strip for precast concrete components. The grout-proof strip includes a limiting part and at least one deformable part. The limiting part restricts the maximum insertion depth of the grout-proof strip. The deformable part is connected to the limiting part and forms a preset angle with the limiting part. A first arc transition section is provided at the connection between the deformable part and the limiting part. When the grout-proof strip is inserted into the gap between two precast components, the deformable part is squeezed by the precast components and deforms towards the central axis of the gap, thereby sealing the gap. In the process of adapting to changes in the gap width, it can also provide sufficient oblique support force for the limiting part within the width range of the component joint. Furthermore, because the deformable part has deformable properties, it can adapt to gaps of different widths, effectively preventing grout leakage during concrete pouring and facilitating rapid sealing of gaps during construction.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a grout-proof strip for precast concrete components. Background Technology

[0002] In building construction projects, to expedite construction, various components are often manufactured using prefabrication methods. These prefabricated components (such as prefabricated exterior wall panels) are then transported to the construction site for installation or use, thus shortening the construction period. During the installation of prefabricated components, it is also necessary to seal the gaps between adjacent components to prevent mortar from leaking out through these gaps during subsequent concrete pouring, thereby ensuring the smooth progress of the construction work. Existing sealing methods for precast components include directly applying foam adhesive, attaching mesh fabric, placing round (rectangular) adhesive strips inside the joints, or directly using mortar. Directly applying foam adhesive results in poor molding, affecting the shape of the sealed area, and poses a significant risk of detachment when the gap is large, making the sealing unreliable. Attaching mesh fabric requires a high-quality precast concrete substrate, making it difficult to adhere firmly, and it is prone to detachment during subsequent concrete pouring, causing grout leakage. Placing round (rectangular) adhesive strips inside the joints requires high precision in the joint width between precast components. When there are positional deviations in the installation of precast components, the gaps between the precast components will differ from the drawings, causing the adhesive strips to not be pressed tightly and detach, resulting in grout leakage. Directly using mortar for sealing is difficult due to the presence of on-site reinforcing steel, and the mortar requires a long curing time to reach a certain strength. Furthermore, the strength of the mortar after filling the gaps will restrict the in-plane deformation of the wall, creating a structural safety hazard.

[0003] Therefore, all existing technologies have certain defects and security risks. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a grout-proof strip for precast concrete components, addressing the aforementioned deficiencies of the prior art. The technical solution adopted by this utility model is as follows:

[0005] In a first aspect, this utility model provides a grout-proof strip for precast concrete components, wherein the grout-proof strip comprises:

[0006] The limiting part is used to limit the maximum insertion depth of the anti-leakage strip;

[0007] At least one deformable part is provided, the deformable part is connected to the limiting part and is at a preset angle to the limiting part, and a first arc transition section is provided at the connection between the deformable part and the limiting part;

[0008] When the anti-leakage strip is inserted into the gap between two precast exterior wall panels, the deformable part is squeezed by the precast exterior wall panels and deforms towards the central axis of the gap or towards one of the precast exterior wall panels. In the process of adapting to the change of gap width, it can also provide sufficient oblique support force for the limiting part within the width range of the precast component joint.

[0009] In one implementation, the limiting part is configured as an L-shape, a T-shape, or a straight line.

[0010] In one implementation, if the limiting part is configured as an L-shape or a T-shape, the limiting part includes: a sealing part and an extension part perpendicularly connected to the sealing part. The sealing part abuts against the edge of the gap between the two prefabricated components to limit the maximum insertion depth of the anti-leakage strip. The extension part is inserted into the gap between the two prefabricated components and is in close contact with one of the prefabricated components.

[0011] A second arc transition section is provided at the connection between the edge sealing part and the extension part.

[0012] In one implementation, when the limiting part is L-shaped and one deformable part is provided, the extension part is perpendicularly connected to one end of the sealing part. The deformable part includes a first part and a second part, one end of the first part is connected to the middle part of the sealing part, the other end of the first part is connected to the middle part of the second part, and the first part and the sealing part, as well as the first part and the second part, form obtuse angles.

[0013] A third circular arc transition section is provided at the connection between the first part and the second part.

[0014] In one implementation, a second arc transition section is provided at the connection between the first part and the second part.

[0015] In one implementation, when the limiting part is L-shaped and one deformable part is provided, the extension part is perpendicularly connected to one end of the sealing part, the deformable part is connected to the other end of the extension part, the deformable part and the extension part form an acute angle and face towards the sealing part.

[0016] In one implementation, if the limiting part is T-shaped, one deformable part is provided, the extension part is perpendicularly connected to the middle part of the sealing part, the deformable part includes a first part and a second part, the first part and the second part are symmetrically arranged on both sides of the extension part, and both are connected to one end of the extension part at an acute angle, and the first part, the extension part and the second part form an arrow shape.

[0017] In one implementation, if the limiting part is configured in a straight line, two deformable parts are provided, and the two deformable parts are symmetrically arranged along the horizontal center line of the limiting part.

[0018] In one implementation, the deformable portion includes a first portion and a second portion, one end of the first portion being connected to the middle portion of the limiting portion, the other end of the first portion being connected to the middle portion of the second portion, and the first portion and the limiting portion, as well as the first portion and the second portion, forming an obtuse angle.

[0019] In one implementation, if the limiting part is configured as a straight line, and one deformable part is provided, the deformable part is configured as a frustum-shaped structure, and the deformable part and the limiting part are integrally formed;

[0020] A through hole is provided on the deformable part to form a deformable cavity.

[0021] In one implementation, the limiting part and the deformable part can be arranged along the entire length of the gap between the two prefabricated components, or they can be arranged at preset length intervals.

[0022] Beneficial Effects: Compared with the prior art, this utility model provides a grout-proof strip for precast concrete components. The grout-proof strip includes a limiting part and at least one deformable part. The limiting part restricts the maximum insertion depth of the grout-proof strip. The deformable part is connected to the limiting part and forms a preset angle with the limiting part. A first arc transition section is provided at the connection between the deformable part and the limiting part. When the grout-proof strip is inserted into the gap between two precast components, the deformable part is squeezed by the precast components and deforms towards the central axis of the gap to fill the gap between the two precast components connected in the construction of the building, thereby sealing the gap. Furthermore, since the deformable part has deformable properties, it can adapt to gaps of different widths. The limiting part, on the one hand, prevents the grout-proof strip from being completely submerged in the gap, causing excessive insertion depth. On the other hand, it also provides secondary sealing of the gap between the outer surface of the grout-proof strip and the precast component, effectively preventing grout leakage during concrete pouring and facilitating rapid sealing of gaps during construction. At the same time, when the deformable part is squeezed by the precast component and adapts to the change of joint width, it can provide sufficient oblique support force for the limiting part within the joint width range of the precast component to ensure that the limiting part has sufficient rigidity to resist the pressure during concrete pouring. Attached Figure Description

[0023] Figure 1 A front view of a first form of a grout-proof strip for precast concrete components provided in an embodiment of this utility model.

[0024] Figure 2 A three-dimensional structural schematic diagram of a first form of anti-grout leakage strip for precast concrete components provided in this embodiment of the present utility model.

[0025] Figure 3A schematic diagram illustrating the first application of the waterproof adhesive for precast concrete components provided in this embodiment of the present invention.

[0026] Figure 4 A front view of a second form of the anti-grouting strip for precast concrete components provided in an embodiment of this utility model.

[0027] Figure 5 A front view of a third form of the anti-grouting strip for precast concrete components provided in this embodiment of the present invention.

[0028] Figure 6 A front view of a fourth form of the anti-grouting strip for precast concrete components provided in this embodiment of the present invention.

[0029] Figure 7 A front view of a fifth form of the anti-leakage strip for precast concrete components provided in an embodiment of this utility model.

[0030] Figure 8 A three-dimensional structural schematic diagram of the fifth form of the anti-leakage strip for precast concrete components provided in this utility model embodiment.

[0031] Figure 9 This is a schematic diagram illustrating a second application of the waterproof adhesive for precast concrete components provided in an embodiment of the present invention.

[0032] Figure 10 A front view of a sixth form of the anti-leakage strip for precast concrete components provided in this embodiment of the present invention.

[0033] Figure 11 A front view of the seventh form of the anti-grouting strip for precast concrete components provided in this embodiment of the present invention.

[0034] Figure 12 A three-dimensional structural schematic diagram of the seventh form of the anti-leakage strip for precast concrete components provided in this utility model embodiment.

[0035] Figure 13 The eighth form of the anti-grouting strip for precast concrete components provided in this embodiment of the present invention is shown in the front view.

[0036] Figure 14 A front view of the ninth form of the anti-grouting strip for precast concrete components provided in this embodiment of the present invention.

[0037] Figure 15 A front view of the tenth form of the anti-grouting strip for precast concrete components provided in this utility model embodiment.

[0038] In the attached drawings, 100: anti-leakage strip, 10: limiting part, 20: deformable part, 110: sealing part, 120: extension part, 210: first part, 220: second part, 30: first arc transition section, 40: second arc transition section, 50: third arc transition section, 200: prefabricated component, 60: through hole. Detailed Implementation

[0039] To make the objectives, technical solutions, and effects of this utility model clearer and more explicit, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0040] The flowchart shown in the attached diagram is for illustrative purposes only and does not necessarily include all content, operations, or steps, nor does it require execution in the described order. For example, some operations or steps can be broken down, combined, or partially merged, so the actual execution order may change depending on the actual situation.

[0041] It should be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0042] It should be understood that, in order to clearly describe the technical solutions of the embodiments of this utility model, the terms "first" and "second" are used in the embodiments of this utility model to distinguish identical or similar items with essentially the same function and effect. For example, the first control information and the second control information are only used to distinguish different control information and do not limit their order.

[0043] Those skilled in the art will understand that the words "first" and "second" do not limit the quantity or the order of execution, and that the words "first" and "second" do not necessarily imply that they are different.

[0044] It should also be understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0045] To address the problems of existing technologies, this utility model provides a grout-proof strip for precast concrete components, combined with... Figure 1 and Figure 2As shown, the anti-leakage strip includes: a limiting part 10 and at least one deformable part 20. The limiting part 10 is used to limit the maximum insertion depth of the anti-leakage strip; the deformable part 20 is connected to the limiting part 10 and forms a preset angle with the limiting part 10, and a first arc transition section 30 is provided at the connection between the deformable part 20 and the limiting part 10. In practical applications, combined with Figure 3 As shown, when the anti-leakage strip 100 is inserted into the gap between two precast components 200, the deformable part 20 is squeezed by the precast components 200 on both sides and deforms towards the central axis of the gap to fill the gap between the two precast components 200 connected during building construction. This seals the gap and helps prevent concrete from flowing through the gap between the precast components 200 during subsequent concrete pouring, thus avoiding concrete waste and affecting the shape of the connection joint of the precast components 200, thereby improving the quality of building construction. Furthermore, since the deformable part 20 has deformability, it can adapt to gaps of different widths. The limiting part 10 is used on the one hand to prevent the anti-leakage strip 100 from being completely submerged in the gap due to excessive insertion depth, and on the other hand, it is used to perform secondary sealing of the gap between the outer surface of the anti-leakage strip 100 and the precast component 200, effectively preventing grout leakage during concrete pouring and facilitating rapid sealing of gaps during construction. At the same time, when the deformable part 20 is squeezed by the precast component and adapts to the change of joint width, it can provide sufficient oblique support force for the limiting part within the joint width range of the precast component to ensure that the limiting part 10 has sufficient rigidity to resist the pressure during concrete pouring.

[0046] In practical applications, the limiting part 10 of this embodiment is designed as a plate structure, which helps maintain the straightness of the sealing line and improves the shape of the sealing part. The deformable part 20 of this embodiment can be made of rubber-based materials, including but not limited to natural rubber or synthetic rubber, such as nitrile rubber, neoprene rubber, and silicone rubber, which facilitates deformation. In addition, this embodiment can also choose flexible plastics to make the deformable part 20, such as polyethylene, polypropylene, and polyvinyl chloride. In the specific material selection, polyurethane and other wear-resistant and highly malleable soft plastics can also be used, depending on the production conditions and cost control, which will not be elaborated here. Furthermore, the deformable part 20 and the limiting part 10 of this embodiment are integrally formed, so the limiting part 10 can be made of the same material as the deformable part 20.

[0047] The limiting part 10 in this embodiment can be configured as L-shaped, T-shaped, or straight. Specifically, if the limiting part 10 is configured as L-shaped or T-shaped, the limiting part 10 includes: an edge sealing part 110 and an extension part 120 perpendicularly connected to the edge sealing part 110. Figure 3As shown, when the anti-leakage strip 100 is inserted into the gap between two prefabricated components 200, the sealing portion 110 abuts against the edge of the gap between the two prefabricated components 200 to limit the maximum insertion depth of the anti-leakage strip 100. The extension portion 120 is inserted into the gap between the two prefabricated components 200 and is in close contact with one of the prefabricated components 200. In this embodiment, a second arc transition section 40 is provided at the connection between the sealing portion 110 and the extension portion 120. The arc transition connection helps to increase the strength of the connection and avoid cracking at the connection, which would affect the service life of the anti-leakage strip 100. Further, in this embodiment, the deformable portion 20 can be provided as one or two. When the limiting portion 10 is set as an L-shape, the deformable portion 20 can be provided as one. At this time, the extension portion 120 is perpendicularly connected to one end of the sealing portion 110. At this time, combined with Figure 1 and Figure 2 As shown, the deformable portion 20 includes a first portion 210 and a second portion 220. One end of the first portion 210 is connected to the middle of the sealing portion 110, and the other end of the first portion 210 is connected to the middle of the second portion 220. Since a first arc transition section 30 is provided at the connection between the deformable portion 20 and the limiting portion 10 in this embodiment, the first arc transition section 30 is the connection position between the first portion 210 and the sealing portion 110. Furthermore, in this embodiment, the first portion 210 and the sealing portion 110, as well as the first portion 210 and the second portion 220, form obtuse angles, causing the entire deformable portion 20 to be obliquely upward. In practical applications, the distance between the top edge of the deformable portion 20 and the extension portion 120 is greater than the width of the gap. Figure 3 In the application scenario described, when the anti-leakage strip 100 is inserted into the gap between two prefabricated components 200, the second part 220 of the deformable part 20 abuts against the prefabricated component 200 and deforms under the pressure of the prefabricated component 200, deforming inward towards the gap. In addition, the extension part 120 is tightly fitted with the prefabricated component 200, thereby sealing the gap. Similarly, in this embodiment, a third arc transition section 50 can be provided at the connection between the first part 210 and the second part 220 of the deformable part 20, which helps to increase the strength of the connection and avoid cracking at the connection, thus affecting the service life of the anti-leakage strip 100.

[0048] In another implementation, this embodiment can adjust the connection position of the deformable part 20 on the sealing part 110 according to the width of the gap between the two prefabricated components 200. Figure 1 In the leak-proof strip 100 shown, the distance between the first part 210 of the deformable part 20 and the extension part 120 at the connection position on the sealing part 110 is relatively large, for example, 12mm. This results in a larger distance between the top of the deformable part 20 and the extension part 120, making it suitable for scenarios with larger gaps. And as... Figure 4In the grout-proof strip 100 shown, the distance between the connection position of the first part 210 of the deformable part 20 on the sealing part 110 and the extension part 120 is relatively small, for example, 5mm. This makes the distance between the top of the deformable part 20 and the extension part 120 relatively small, which is suitable for scenarios with small gap widths. In this embodiment, a suitable grout-proof strip 100 can be selected according to the specific construction scenario and usage requirements.

[0049] In another implementation, when the limiting part 10 is configured as an L-shape, the deformable part 20 can also be configured in another form in this embodiment. For example... Figure 5 As shown, the deformable part 20 is connected to the other end of the extension part 120 at this time. The deformable part 20 and the extension part 120 form an acute angle and face the sealing part 110. At this time, the first arc transition section 30 is located at the connection between the deformable part 20 and the extension part 120. Figure 5 In the anti-leakage strip 100 described above, the deformable part 20 is a plate structure. Similarly, the distance between the top of the deformable part 20 and the extension part 120 is greater than the gap width between the two prefabricated components 200. When inserted into the gap between the two prefabricated components 200, the plate-shaped deformable part 20 will deform inward due to pressure, which can also seal the gap.

[0050] In other embodiments, the limiting part 10 of this utility model can also be configured as a T-shape. In this embodiment, the extension part 120 is perpendicularly connected to the middle part of the sealing part 110. In this case, one deformable part 20 can be provided, and the shape of the deformable part 20 can be deformed. Specifically, as shown below... Figure 6 As shown, the deformable portion 20 can also include a first portion 210 and a second portion 220. The first portion 210 and the second portion 220 are symmetrically arranged on both sides of the extension portion 120, and both are connected to one end of the extension portion 120 at an acute angle. The first arc transition section 30 is located at the connection points between the first portion 210 and the second portion 220 and the extension portion 120, respectively. The first portion 210, the extension portion 120, and the second portion 220 form an arrow shape. Similarly, the distance between the top of the first portion 210 and the bottom of the second portion 220 is greater than the gap width between the two prefabricated components 200. When the anti-leakage strip 100 is inserted into the gap between the two prefabricated components 200, both the first portion 210 and the second portion 220 will deform inwards under pressure, thus sealing the gap.

[0051] In other embodiments, the limiting part 10 of this utility model can also be configured as a straight line, in which case the limiting part 10 is a single plate structure. In practical applications, one or two deformable parts 20 can be provided. When one deformable part 20 is provided, the two deformable parts 20 are symmetrically arranged along the horizontal center line of the limiting part 10. Figure 7 and Figure 8 As shown, the shape of the deformable part 20 at this time is similar to... Figure 1 and Figure 2 The deformable portions 20 shown are similar in shape, but two are provided and symmetrically arranged. Specifically, each deformable portion 20 also includes a first portion 210 and a second portion 220. One end of the first portion 210 is connected to the middle of the limiting portion 10, and the other end of the first portion 210 is connected to the middle of the second portion 220. The angles between the first portion 210 and the limiting portion 10, and between the first portion 210 and the second portion 220, are both obtuse angles. In practical applications, the maximum height between the two deformable portions 20 must also be greater than the gap width between the two prefabricated components 200. For example... Figure 9 As shown in the application diagram, when... Figure 7 When the anti-leakage strip 100 shown is inserted into the gap between the two prefabricated components 200, the second part 220 of both deformable parts 20 is squeezed by the prefabricated components 200, thereby deforming inward and sealing the gap. Of course, in this embodiment, the connection position of the deformable part 20 on the limiting part 10 can also be adjusted according to the width of the gap between the two prefabricated components 200. Figure 7 In the leak-proof strip 100 shown, the first part 210 of the two deformable parts 20 are connected at different positions on the limiting part 10, and are set at a certain distance from each other, such as 12mm apart. This makes the maximum height between the two deformable parts 20 larger, which is suitable for scenarios with larger gaps. Figure 10 In the grout-proof strip 100 shown, the first part 210 of the two deformable parts 20 is connected at the same position on the limiting part 10, using only an arc transition connection. This results in a slightly smaller maximum height between the two deformable parts 20, making it suitable for scenarios with small gaps. In this embodiment, a suitable grout-proof strip 100 can be selected based on the specific construction scenario and usage requirements. In this embodiment, the thickness of the limiting part 10 and the deformable part 20 can be set to be the same, such as 5-8mm, to ensure the overall performance and strength of the grout-proof strip 100.

[0052] Furthermore, in other embodiments, if the limiting part 10 in this utility model is configured as a straight line, the deformable part 20 can also be configured as a single unit. In this case, the deformable part 20 is configured as a frustum-shaped structure, and the deformable part 20 is integrally formed with the limiting part 10. Specifically, as shown below... Figure 11 and Figure 12As shown, the cross-section of the deformable portion 20 is an isosceles trapezoid, and the inclined surface of the deformable portion 20 transitions to the limiting portion 10 via a stepped surface. In this embodiment, the dimensions of the deformable portion 20 gradually decrease in the direction away from the limiting portion 10, facilitating insertion into the gap between the two prefabricated components 200. Furthermore, to improve deformation performance, this embodiment also provides a through hole 60 on the deformable portion 20, forming a deformation cavity. In practical applications, when the anti-leakage strip 100 is inserted into the gap between the two prefabricated components 200, the two inclined surfaces on the deformable portion 20 will deform inward, thus sealing the gap. In other implementations, this embodiment can also deform the deformable portion 20, such as... Figure 13 As shown, the inclined surface of the deformable part 20 is directly connected to the limiting part 10; or as... Figure 14 and Figure 15 As shown, the cross-section of the deformable part 20 is set as a right-angled trapezoid. And... Figure 14 The inclined surface of the middle deformation part 20 and the limiting part 10 are transitioned by a stepped surface. Figure 15 The inclined surface of the middle deformation part 20 is directly connected to the limiting part 10.

[0053] It should be noted that regardless of whether the limiting part 10 in this utility model is L-shaped, T-shaped, or straight, and regardless of the form of the deformable part 20, and whether there is one or two, the anti-leakage strip 100 in this embodiment can be manufactured by integral molding. In practical applications, the limiting part 10 and the deformable part 20 in this embodiment can be arranged along the entire length of the gap between the two prefabricated components. Of course, to solve the cost problem, they can also be arranged at preset length intervals.

[0054] In summary, this utility model provides a grout-proof strip for precast concrete components, comprising a limiting part and at least one deformable part. The limiting part restricts the maximum insertion depth of the grout-proof strip; the deformable part is connected to the limiting part and forms a preset angle with the limiting part, and a first arc transition section is provided at the connection between the deformable part and the limiting part. When the grout-proof strip is inserted into the gap between two precast components, the deformable part is squeezed by the precast components and deforms towards the central axis of the gap to fill the gap between the two precast components connected during building construction, thereby sealing the gap. Simultaneously, when the deformable part is squeezed by the precast components and adapts to changes in the gap width, it can provide sufficient oblique support force to the limiting part within the width range of the component joint to ensure that the limiting part has sufficient rigidity to resist the pressure during concrete pouring. Furthermore, since the deformable part has deformable properties, it can adapt to gaps of different widths. The limiting part is used on the one hand to prevent the anti-leakage strip from being completely submerged in the gap and causing the insertion depth to be too deep. On the other hand, it is also used to seal the gap between the outer surface of the anti-leakage strip and the precast component, effectively preventing grout leakage during concrete pouring and facilitating the rapid sealing of gaps during construction.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A grout-proof strip for precast concrete components, characterized in that, The anti-leakage strip includes: The limiting part is used to limit the maximum insertion depth of the anti-leakage strip; At least one deformable part is provided, the deformable part is connected to the limiting part and is at a preset angle to the limiting part, and a first arc transition section is provided at the connection between the deformable part and the limiting part; When the anti-leakage strip is inserted into the gap between two precast components, the deformable part is squeezed by the precast components and deforms towards the central axis of the gap. In the process of adapting to the change of gap width, it can also provide sufficient oblique support force for the limiting part within the width range of the precast component joint.

2. The anti-leakage strip for precast concrete components according to claim 1, characterized in that, The limiting part is configured as an L-shape, a T-shape, or a straight line.

3. The anti-leakage strip for precast concrete components according to claim 2, characterized in that, If the limiting part is configured as an L-shape or a T-shape, the limiting part includes: a sealing part and an extension part perpendicularly connected to the sealing part. The sealing part abuts against the edge of the gap between the two precast components to limit the maximum insertion depth of the anti-leakage strip. The extension part is inserted into the gap between the two precast components and is in close contact with one of the precast components. A second arc transition section is provided at the connection between the edge sealing part and the extension part.

4. The anti-leakage strip for precast concrete components according to claim 3, characterized in that, When the limiting part is set in an L-shape and one deformable part is provided, the extension part is perpendicularly connected to one end of the sealing part. The deformable part includes a first part and a second part. One end of the first part is connected to the middle part of the sealing part, and the other end of the first part is connected to the middle part of the second part. The first part and the sealing part, as well as the first part and the second part, are both obtuse angles. A third circular arc transition section is provided at the connection between the first part and the second part.

5. The anti-leakage strip for precast concrete components according to claim 3, characterized in that, When the limiting part is set in an L-shape and one deformable part is provided, the extension part is perpendicularly connected to one end of the sealing part, the deformable part is connected to the other end of the extension part, the deformable part and the extension part form an acute angle and face towards the sealing part.

6. The anti-leakage strip for precast concrete components according to claim 3, characterized in that, If the limiting part is T-shaped, one deformable part is provided, the extension part is perpendicularly connected to the middle part of the sealing part, the deformable part includes a first part and a second part, the first part and the second part are symmetrically arranged on both sides of the extension part, and both are connected to one end of the extension part at an acute angle, the first part, the extension part and the second part form an arrow shape.

7. The anti-leakage strip for precast concrete components according to claim 2, characterized in that, If the limiting part is configured in a straight line, two deformable parts are provided, and the two deformable parts are symmetrically arranged along the horizontal center line of the limiting part.

8. The anti-leakage strip for precast concrete components according to claim 7, characterized in that, The deformable portion includes a first portion and a second portion, one end of the first portion is connected to the middle portion of the limiting portion, the other end of the first portion is connected to the middle portion of the second portion, and the first portion and the limiting portion, as well as the first portion and the second portion, form obtuse angles.

9. The anti-leakage strip for precast concrete components according to claim 2, characterized in that, If the limiting part is configured as a straight line, and one deformable part is provided, and the deformable part is configured as a frustum-shaped structure, and the deformable part and the limiting part are integrally formed; A through hole is provided on the deformable part to form a deformable cavity.

10. The anti-leakage strip for precast concrete components according to claim 1, characterized in that, The limiting part and the deforming part can be arranged along the entire length of the gap between the two prefabricated components, or they can be arranged at preset length intervals.

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