Waterproof device and waterproof rubber strip replacement method

Abstract

The invention discloses a waterproof device and a waterproof rubber strip replacement method, and belongs to the technical field of bridge waterproof devices.The waterproof device comprises a waterproof rubber strip, profiles and a steel wire rope, the profiles are arranged on the two sides of an expansion joint respectively, cavity through grooves are formed in the upstream faces of the profiles, and the waterproof rubber strip comprises an expansion part and a clamping part; the clamping parts are arranged at the two ends of the telescopic part in the telescopic direction, the clamping parts are used for being embedded in the cavity through grooves, and containing through grooves allowing the steel wire ropes to be plugged in in an interference mode are formed in the clamping parts. The waterproof rubber strip can be pulled back and forth in the cavity through groove, the steel wire rope can be pulled back and forth in the containing through groove of the waterproof rubber strip, the waterproof rubber strip can be replaced in a pulling mode, and compared with an extrusion mode for installation in the prior art, the replacement steps can be effectively reduced, the replacement difficulty is lowered, and the replacement efficiency is improved. And the waterproof rubber strip can be widely applied to the waterproof construction of expansion joints of various buildings, in particular to rail transit bridges.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge waterproof devices, and in particular to a waterproof device and a method for replacing a waterproof rubber strip. Background Art

[0002] Rail transit bridges generally have waterproofing devices installed at the expansion joints between the two beam ends and between the beam ends and the abutments to adapt to the expansion and contraction deformation of the beam body and to achieve sealing to prevent the lower structure of the bridge from being eroded by water.

[0003] Existing rail transit bridge waterproofing devices are usually composed of profiles, waterproof rubber belts and anchoring structures. The profiles are arranged on both sides of the expansion joint. Two large and small cavities are set on the profiles. The large cavity and the small cavity are connected. During installation, the ears of the waterproof rubber belt are first pulled into the large cavity, and then the ears of the waterproof rubber belt are squeezed into the small cavity with a roller tool. During removal, another roller tool is used to push the ears of the waterproof rubber belt forward out of the small cavity. The tooling is complicated and the construction is tedious, making replacement very difficult. In addition, the tool extrusion cannot ensure that the tightness of the waterproof rubber belt is consistent over the entire length of the expansion joint, resulting in poor sealing.

[0004] Therefore, it is necessary to improve the structure of the waterproof device to facilitate the replacement of the waterproof rubber strip. Summary of the Invention

[0005] The purpose of the present invention is to solve the above-mentioned technical problems and provide a waterproof device and a method for replacing a waterproof rubber strip. The waterproof rubber strip can be pulled back and forth in the cavity groove, and the steel wire rope can be pulled back and forth in the accommodating groove of the waterproof rubber strip. The replacement of the waterproof rubber strip can be completed by pulling. Compared with the existing technology that requires installation by extrusion, it can effectively reduce the replacement steps and reduce the difficulty of replacement, and there will be no situation where the tightness of the waterproof rubber strip is different. It can be widely used in the expansion joint waterproofing construction of various buildings, especially rail transit bridges.

[0006] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention discloses a waterproof device, including a waterproof rubber strip, a profile and a steel wire rope, the profile is symmetrically arranged on both sides of the expansion joint, and a cavity groove is provided on the water-facing surface of the profile, the waterproof rubber strip includes a telescopic part and a clamping part, the telescopic part can be telescoped, and the clamping part is symmetrically arranged at both ends of the telescopic part in the telescopic direction, the clamping part is used to be embedded in the cavity groove, and the clamping part is provided with a accommodating groove for the steel wire rope to be inserted with interference fit, and the notch of the accommodating groove is used to face the bottom of the cavity groove.

[0007] Preferably, it further comprises a cover plate, which covers the profile and the waterproof rubber strip.

[0008] Preferably, the profile is mounted on the expansion joint by means of bolts.

[0009] Preferably, the accommodating through groove includes a circular groove cavity and a rectangular notch.

[0010] Preferably, the clamping portion includes two arc-shaped bodies, the inner arc surfaces of the two arc-shaped bodies are arranged to face each other, and the accommodating groove is formed between the two arc-shaped bodies.

[0011] Preferably, the center of the circular groove cavity and the center of the outer circle formed by the outer arc surfaces of the two arc-shaped bodies are eccentrically set, and the center of the outer circle is closer to the bottom of the cavity groove than the center of the circular groove cavity, so that the wall thickness of the arc-shaped body gradually increases from one end away from the bottom of the cavity groove to the end close to it.

[0012] Preferably, waterproof ridges protrude along the circumference of the cavity groove, and the waterproof ridges extend along the groove length direction of the cavity groove; or waterproof ridges protrude along the circumference of the outer arc surface of the arc body, and the waterproof ridges extend along the axial direction of the arc body.

[0013] Preferably, the waterproof ridge is a triangular prism, and the top of the triangular prism is arc-shaped.

[0014] Preferably, the telescopic portion is a single-layer wavy structure or a double-layer wavy structure.

[0015] The present invention also discloses a method for replacing a waterproof rubber strip, which is used to replace the waterproof rubber strip in the above-mentioned waterproof device, comprising the following steps:

[0016] S1. Pull the steel wire rope out of the receiving groove of the clamping part of the old waterproof rubber strip;

[0017] S2. Pull the clamping part of the old waterproof rubber strip out of the cavity groove of the profile;

[0018] S3, cleaning the cavity groove;

[0019] S4. Pull the clamping part of the new waterproof rubber strip into the cavity groove;

[0020] S5. Insert the steel wire rope into the receiving groove of the clamping part of the new waterproof rubber strip.

[0021] Compared with the prior art, the present invention has achieved the following technical effects:

[0022] In the present invention, a cavity groove is provided on the water-facing surface of the profile, and the ear portion of the waterproof rubber strip is provided as a clamping portion with a receiving groove. The waterproof rubber strip can be pulled back and forth in the cavity groove, and the steel wire rope can be pulled back and forth in the receiving groove of the waterproof rubber strip, so that the waterproof rubber strip can be replaced by pulling. Compared with the prior art that requires installation by extrusion, the structure of this waterproof device can effectively reduce the replacement steps and reduce the difficulty of replacement, and there will be no problem of uneven tightness of the waterproof rubber strip. Moreover, under the interference fit of the steel wire rope, the receiving groove of the clamping portion can be opened, so that the clamping portion is tightly attached to the cavity groove of the profile, ensuring the sealing and waterproof effect. This waterproof device can be widely used in the waterproof construction of expansion joints of various buildings, especially rail transit bridges. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the analysis of these drawings without paying any creative work.

[0024] Figure 1 Schematic diagram of the structure of the waterproof device in an embodiment of the present invention;

[0025] Figure 2 for Figure 1 A partial enlarged schematic diagram;

[0026] Figure 3 Schematic diagram of the front view of the profile (with waterproof ridges) in an embodiment of the present invention;

[0027] Figure 4 Schematic diagram of the front structure of the waterproof rubber strip in an embodiment of the present invention;

[0028] Figure 5 for Figure 4 A partial enlarged schematic diagram;

[0029] Figure 6 Schematic diagram of the front structure of the profile in the embodiment of the present invention;

[0030] Figure 7 Schematic diagram of the front view of the waterproof rubber strip (with waterproof ridges) in an embodiment of the present invention;

[0031] Figure 8 for Figure 7 A partial enlarged schematic diagram;

[0032] Figure 9 Schematic diagram of the front view of the waterproof rubber strip (single wavy layer ridges) in an embodiment of the present invention;

[0033] Figure 10 Schematic diagram of the structure of the steel ball tooling in an embodiment of the present invention.

[0034] Explanation of the accompanying reference numerals: 1. Waterproof rubber strip; 2. Profile; 3. Steel wire rope; 4. Cover plate; 5. Bolt; 6. Waterproof ridge; 7. Steel wool tooling; 11. Telescopic part; 12. Clamping part; 13. Accommodating slot; 121. Arc-shaped body; 131. Circular groove; 132. Rectangular notch; 21. Cavity slot; 71. Pull ring; 72. Pull rope; 73. Roulette knife; 74. Small steel wool; 75. Large steel wool. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments analyzed and obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] The purpose of the present invention is to provide a waterproof device and a method for replacing waterproof rubber strips to solve the problems existing in the prior art. By setting a cavity groove on the water-facing surface of the profile, the ear of the waterproof rubber strip is set as a clamping part with a receiving groove. The waterproof rubber strip can be pulled back and forth in the cavity groove, and the steel wire rope can be pulled back and forth in the receiving groove of the waterproof rubber strip, so that the replacement of the waterproof rubber strip can be completed by pulling. Compared with the prior art that requires installation by extrusion, the structure of this waterproof device can effectively reduce the replacement steps and reduce the difficulty of replacement, and there will be no situation where the tightness of the waterproof rubber strip is inconsistent. Moreover, under the interference fit of the steel wire rope, the receiving groove of the clamping part can also be opened, so that the clamping part is tightly attached to the cavity groove of the profile, ensuring the sealing and waterproof effect. This waterproof device can be widely used in the waterproof construction of expansion joints of various buildings, especially rail transit bridges.

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] Example 1

[0039] like Figures 1 to 10As shown, this embodiment provides a waterproof device, including a waterproof rubber strip 1, a profile 2 and a steel wire rope 3. The profiles 2 are symmetrically arranged on both sides of the expansion joint (usually two profiles 2 are grouped together and symmetrically arranged on both sides of the expansion joint). A cavity groove 21 is provided on the water-facing surface of the profile 2, that is, the notch of the cavity groove 21 faces the direction of water. If the expansion joint is a horizontal joint and the main source of water is rainwater, the water-facing surface of the profile 2 is set upward, that is, the notch of the cavity groove 21 faces upward. The waterproof rubber strip 1 includes a telescopic portion 11 and a clamping portion 12, and the telescopic portion 11 can be telescoped. The clamping portion 12 is symmetrically arranged at both ends of the telescopic direction of the telescopic portion 11. The clamping portion 12 is designed to be embedded in the cavity groove 21. The clamping portion 12 is provided with a receiving groove 13, which allows the wire rope 3 to be inserted into the receiving groove 13 with an interference fit. The inserted wire rope 3 will fill the receiving groove 13, causing the clamping portion 12 to expand outward, thereby pressing it tightly against the cavity groove 21 and achieving a waterproof seal. The notch of the receiving groove 13 is designed to face the bottom of the cavity groove 21. When the expansion joint increases or decreases, the profiles 2 on both sides of the expansion joint will move away from or closer to each other, thereby pulling the clamping portion 12 of the waterproof rubber strip 1. The expansion portion 11 will then extend or shorten to adapt to the changes in the expansion joint and ensure a waterproof effect.

[0040] When disassembling and assembling the waterproof rubber strip, you only need to pull out the steel wire rope 3 from the accommodating groove 13 of the clamping part 12 of the old waterproof rubber strip 1, and then pull the clamping part 12 of the old waterproof rubber strip 1 out of the cavity groove 21 of the profile 2 to complete the disassembly of the waterproof rubber strip, and then pull the clamping part 12 of the new waterproof rubber strip 1 into the cavity groove 21, and pass the steel wire rope 3 into the accommodating groove 13 of the clamping part 12 of the new waterproof rubber strip 1 to complete the installation of the waterproof rubber strip. The entire disassembly and assembly process of the waterproof rubber strip is very simple, and it is not difficult to replace it. It can also ensure that the tightness of the waterproof rubber strip 1 is consistent throughout the entire length of the expansion joint, thereby ensuring the sealing effect.

[0041] This waterproof device can be widely used in the waterproof construction of expansion joints of various buildings, especially rail transit bridges.

[0042] In one embodiment, a cover plate 4 is also included, covering the profile 2 and the waterproof rubber strip 1. In this case, the expansion joint is a horizontal expansion joint, and the waterproof rubber strip 1 is arranged horizontally. The main purpose of providing the cover plate 4 is to protect the waterproof rubber strip 1 from being run over by vehicles when the waterproof device is installed on the expansion joint of the bridge.

[0043] In one embodiment, the profile 2 is mounted on both sides of the expansion joint using bolts 5. Specifically, the bolts 5 are partially embedded in the structure forming the expansion joint. Preferably, the bolts 5 are elbow bolts to enhance the connection strength with the expansion joint. Alternatively, other anchoring elements may be used to anchor the structure forming the expansion joint.

[0044] In one embodiment, the receiving groove 13 includes a circular groove 131 and a rectangular notch 132. The circular groove 131 is used to accommodate the wire rope 3. The diameter of the wire rope 3 is larger than the diameter of the circular groove 131, forming an interference fit, allowing the clamping portion 12 to expand and press tightly within the cavity groove 21 of the profile 2, achieving a waterproof seal. The presence of the rectangular notch 132 helps minimize the compression of the end of the clamping portion 12 near the bottom of the cavity groove 21, facilitating insertion into the cavity groove 21. Furthermore, the rectangular notch 132 facilitates the expansion of the circular groove 131 when the wire rope 3 is inserted, facilitating the pulling in and out of the wire rope 3.

[0045] In one embodiment, the clamping portion 12 includes two arcuate bodies 121, the inner arcuate surfaces of the two arcuate bodies 121 facing each other, and a receiving groove 13 is formed between the two arcuate bodies 121. Specifically, a circular groove 131 is formed between the inner arcuate surfaces of the two arcuate bodies 121, and a rectangular notch 132 is formed between the ends of the two arcuate bodies 121 near the bottom of the cavity groove 21. The outer arcuate surfaces of the two arcuate bodies 121 also form the clamping portion 12 with an outer circular surface. The corresponding cavity groove 21 of the profile 2 is a C-shaped groove to match the outer circular surface of the clamping portion 12. During installation, the two arcuate bodies 121 are first inserted into the notch of the C-shaped groove (cavity groove 21), and then the wire rope 3 is inserted along the axial direction of the circular groove 131. The wire rope 3 will stretch the two arcuate bodies 121 apart, so that the arcuate bodies 121 are tightly attached to the cavity groove 2121, achieving a waterproof seal.

[0046] In one embodiment, the center A of the circular groove 131 and the center B of the outer circle formed by the outer arc surfaces of the two arc-shaped bodies 121 are eccentrically arranged. The center B of the outer circle is closer to the bottom of the cavity groove 21 than the center A of the circular groove 131. This allows the wall thickness of the arc-shaped body 121 to gradually increase from the end away from the bottom of the cavity groove 21 to the end closer to the bottom of the cavity groove 21. This can prevent the clamping portion 12 from being radially pulled out of the notch of the cavity groove 21, thereby improving the clamping performance of the profile 2 on the clamping portion 12. Taking the installation of a horizontal expansion joint in a bridge as an example, the center A of the circular groove 131 is slightly higher than the center B of the outer circle, and the adhesive layer at the lower end of the clamping portion 12 is thicker.

[0047] In one embodiment, to ensure waterproof sealing between the cavity groove 21 and the clamping portion 12, there are two design options: one option is to have multiple waterproof ridges 6 protruding from the inner circumference of the cavity groove 21 (the waterproof ridges 6 are made of the same material as the profile 2 and have a harderness than the clamping portion 12), and each waterproof ridge 6 extends along the length of the cavity groove 21. No waterproof ridges 6 are provided on the outer curved surface of the arcuate body 121 (the outer surface of the clamping portion 12). After the two arcuate bodies 121 of the clamping portion 12 are stretched apart by the steel wire rope 3, during the process of being in close contact with the cavity groove 21, the waterproof ridges 6 will squeeze the outer curved surface of the arcuate body 121 and embed into the outer curved surface of the arcuate body 121, thereby enhancing the sealing effect. Another solution is to have waterproof ridges 6 protrude from the outer arc surface of the arc body 121 (the outer surface of the clamping portion 12) (the waterproof ridges 6 are made of the same material as the clamping portion 12 and have a lower hardness than the profile 2), but no waterproof ridges 6 are provided in the cavity groove 21. Instead, multiple waterproof ridges 6 are provided along the circumference of the outer arc surface of the arc body 121, and each waterproof ridge 6 extends along the axial direction of the arc body 121. After the two arc bodies 121 of the clamping portion 12 are stretched apart by the steel wire rope 3, the waterproof ridges 6 will be squeezed and deformed during the process of being in close contact with the cavity groove 21, thereby improving the fit with the cavity groove 21 and strengthening the sealing effect. In addition, regardless of whether the waterproof ridges 6 are provided on the cavity groove 21 or on the two arc bodies 121 of the clamping portion 12, while improving the sealing effect, they can also improve the clamping force of the cavity groove 21 on the clamping portion 12, thereby preventing the waterproof rubber strip 1 from falling off. In addition, a plurality of waterproof ridges 6 are provided, and the clamping portion 12 of the waterproof rubber strip 1 is in line contact when pulled into the cavity groove 21 , which reduces the contact friction area and facilitates the pulling in and out of the waterproof rubber strip 1 in the cavity groove 21 .

[0048] In one embodiment, the waterproof rib 6 is a triangular prism with an arc-shaped top. When the waterproof rib 6 is mounted on the profile 2, the arc-shaped top prevents damage to the engaging portion 12 (arc-shaped body 121). When the waterproof rib 6 is mounted on the waterproof rubber strip 1, the arc-shaped top increases the contact area with the cavity groove 21.

[0049] In one embodiment, the telescopic portion 11 has a single-layer wavy structure or a double-layer wavy structure. Compared to a single-layer wavy structure, a double-layer wavy structure offers better waterproofing and a longer service life, but at a higher cost. Therefore, the double-layer wavy structure can be selected and used as needed. Preferably, the upper and lower wavy layers of the double-layer wavy structure are symmetrically arranged, with the troughs of the upper wavy layer aligned with the crests of the lower wavy layer, to ensure that the upper and lower wavy layers deform synchronously and uniformly.

[0050] Example 2

[0051] like Figures 1 to 10As shown, this embodiment provides a method for replacing a waterproof rubber strip, which is used to replace the waterproof rubber strip 1 in the waterproof device in Example 1, comprising the following steps:

[0052] S1. Pull the steel wire rope 3 out of the receiving groove 13 of the clamping portion 12 of the old waterproof rubber strip 1. After the steel wire rope 3 is pulled out, the pressing force between the clamping portion 12 and the inner wall of the cavity groove 21 is reduced, making it easier to pull out the waterproof rubber strip 1.

[0053] S2. Pull the clamping portion 12 of the old waterproof rubber strip 1 out of the cavity groove 21 of the profile 2;

[0054] S3, cleaning the cavity groove 21;

[0055] S4, pull the clamping portion 12 of the new waterproof rubber strip 1 into the cavity groove 21;

[0056] S5. Insert the steel wire rope 3 into the accommodating groove 13 of the clamping part 12 of the new waterproof rubber strip 1. When the steel wire rope 3 is pulled in, it will squeeze the accommodating groove 13 of the clamping part 12 of the waterproof rubber strip 1, so that the clamping part 12 is tightly attached to the inner wall of the cavity groove 21, ensuring the waterproof sealing effect.

[0057] Compared with the existing technology, the waterproof rubber strip replacement method of the present invention only requires pulling the waterproof rubber strip 1 and the steel wire rope 3, and does not require squeezing tooling, so the operation is simple, reliable and fast.

[0058] In one embodiment, in step S1, a traction device is first set up. For example, when replacing the waterproof rubber strip 1 of a bridge expansion joint, the traction device is set up on the outside of the beam end, and then the traction device wire rope 3 is used to pull it out from the receiving groove 13 of the clamping portion 12 of the old waterproof rubber strip 1.

[0059] In one embodiment, in step S3, a traction device is used to pull the steel wool tool 7 to clean the cavity groove 21. The steel wool tool 7 is mainly composed of a pull ring 71, a pull rope 72, a wheel blade 73, a small steel wool 74, and a large steel wool 75. The pull ring 71 is fixed to one end of the pull rope 72, the large steel wool 75 is fixed to the other end of the pull rope 72, and the wheel blade 73 and the small steel wool 74 are located between the pull ring 71 and the large steel wool 75. When in use, the pull ring 71 is pulled by the traction device, so that the wheel blade 73, the small steel wool 74, and the large steel wool 75 enter the cavity groove 21 from one end and then leave from the other end of the cavity groove 21, thereby completing the cleaning.

[0060] In one embodiment, in step S3 , after the steel wool tool 7 cleans the cavity groove 21 , a pulling device is used to pull cotton yarn or soft cloth to clean debris in the cavity groove 21 .

[0061] In one embodiment, in step S3, after cleaning the debris in the cavity groove 21, a traction device is used to pull cotton yarn or soft cloth to apply lubricating oil or lubricant in the cavity groove 21 to reduce the friction between the clamping portion 12 and the cavity groove 21, thereby facilitating pulling the waterproof rubber strip 1.

[0062] In one embodiment, in step S5, before inserting the steel wire rope 3, high-viscosity grease or liquid soapy water is evenly applied to the surface of the steel wire rope 3 to reduce the friction between the steel wire rope 3 and the receiving groove 13, thereby facilitating the pulling of the steel wire rope 3. Preferably, the steel wire rope 3 is re-applied with grease every 1 to 2 meters.

[0063] In one embodiment, in step S4 , the clamping portion 12 of the new waterproof rubber strip 1 is pulled from one end of the cavity through groove 21 to the other end using a pulling device.

[0064] In one embodiment, after step S4, step S5 is further included, in which water is poured on the waterproof rubber strip 1 to the edge joint with the profile 2 to verify the sealing effect.

[0065] Compared with the prior art, the waterproof device and waterproof rubber strip replacement method of the present invention have the following advantages:

[0066] Waterproof device advantages:

[0067] Since the telescopic portion 11 in the middle of the waterproof rubber strip 1 of the waterproof device is double-layered and wavy, it has a longer service life than the existing single-layered wavy shape, and its vertical supporting force is improved, its downward deflection is reduced, and the amount of water stored on it is reduced. The clamping parts 12 at both ends of the waterproof rubber strip 1 are two arc-shaped bodies 121, which are usually in a free contraction state. The outer diameter is smaller than the inner diameter of the cavity groove 21 of the profile 2, which is convenient for pulling into the cavity groove 21 of the profile 2; the inner wall of the cavity groove 21 is provided with a number of full-length waterproof ridges 6, which are in line contact when the waterproof rubber strip 1 is pulled in, rather than large-area contact friction, thereby reducing the pulling resistance of the waterproof rubber strip 1 in the cavity groove 21; the steel wire rope 3 is inserted into the circular groove 131 to stretch the two arc-shaped bodies 121 of the clamping part 12 of the waterproof rubber strip 1 and contact the inner wall of the cavity groove 21. The waterproof ridges 6 squeeze the arc-shaped body 121 of the waterproof rubber strip 1 to deform, thereby enhancing the sealing and clamping effect; the outer arc of the arc-shaped body 121 of the clamping part 12 of the waterproof rubber strip 1 is not concentric with the circular groove 131, the center of the circular groove 131 is biased upward, and the rubber wall at the lower part of the arc-shaped body 121 is thicker, thereby enhancing the clamping effect.

[0068] Advantages of the waterproof rubber strip replacement method: only the traction equipment is needed to pull the waterproof rubber strip 1 and the steel wire rope 3, no squeezing tooling is required, and the operation is simple, reliable and fast.

[0069] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A waterproof device, characterized in that: It includes a waterproof rubber strip, a profile and a steel wire rope. The profile is symmetrically arranged on both sides of the expansion joint. A cavity groove is provided on the water-facing surface of the profile. The waterproof rubber strip includes a telescopic part and a clamping part. The telescopic part can be telescoped. The clamping part is symmetrically arranged at both ends of the telescopic part in the telescopic direction. The clamping part is used to be embedded in the cavity groove. The clamping part is provided with an accommodating groove for the steel wire rope to be inserted with interference fit. The notch of the accommodating groove is used to face the bottom of the cavity groove.

2. The waterproof device according to claim 1, characterized in that: It also includes a cover plate, which covers the profile and the waterproof rubber strip.

3. The waterproof device according to claim 1, characterized in that: The profile is mounted on the expansion joint by means of bolts.

4. The waterproof device according to claim 1, characterized in that: The accommodating through groove includes a circular groove cavity and a rectangular notch.

5. The waterproof device according to claim 4, characterized in that: The clamping portion includes two arc-shaped bodies, the inner arc surfaces of the two arc-shaped bodies are arranged to face each other, and the accommodating groove is formed between the two arc-shaped bodies.

6. The waterproof device according to claim 5, characterized in that: The center of the outer circle formed by the center of the circular groove cavity and the outer arc surfaces of the two arc-shaped bodies is eccentrically set, and the center of the outer circle is closer to the bottom of the cavity groove than the center of the circular groove cavity, so that the wall thickness of the arc-shaped body gradually increases from one end away from the bottom of the cavity groove to the other end close to it.

7. The waterproof device according to claim 5, characterized in that: Waterproof ridges protrude along the circumference of the cavity groove, and the waterproof ridges extend along the groove length direction of the cavity groove; or waterproof ridges protrude along the circumference of the outer arc surface of the arc body, and the waterproof ridges extend along the axial direction of the arc body.

8. The waterproof device according to claim 7, characterized in that: The waterproof ridge is a triangular prism, and the top of the triangular prism is arc-shaped.

9. The waterproof device according to claim 1, characterized in that: The telescopic portion is a single-layer wavy structure or a double-layer wavy structure.

10. A method for replacing a waterproof rubber strip, characterized in that: The method for replacing the waterproof rubber strip in the waterproof device according to any one of claims 1 to 9 comprises the following steps: S1. Pull the steel wire rope out of the receiving groove of the clamping part of the old waterproof rubber strip; S2. Pull the clamping part of the old waterproof rubber strip out of the cavity groove of the profile; S3, cleaning the cavity groove; S4. Pull the clamping part of the new waterproof rubber strip into the cavity groove; S5. Insert the steel wire rope into the receiving groove of the clamping part of the new waterproof rubber strip.

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