Shield tunnel segment joint elastic sealing gasket of waterproof structure

Abstract

The utility model relates to the field of sealing gaskets, and discloses a shield tunnel segment joint elastic sealing gasket of a waterproof structure. The shield tunnel segment joint elastic sealing gasket of the waterproof structure comprises a lower sealing gasket body, an auxiliary sealing gasket body is arranged at the upper end of the lower sealing gasket body, a plurality of clamping grooves are formed in the lower end of the auxiliary sealing gasket body, a plurality of positioning columns are fixedly connected to the upper end of the lower sealing gasket body, and clamping plates are arranged on the side faces of the positioning columns; an isolation plate is fixedly connected into a positioning column, a worker can compress the position of a clamping plate by pulling a lower sealing gasket and an auxiliary sealing gasket and applying external force, the positioning column in a clamping groove can be taken out by driving the position of the clamping plate to move through a spring, the position of the spring is conveniently limited through the isolation plate, and therefore follow-up operation and use of the assembly are facilitated; therefore, operation and use of workers are facilitated.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of sealing gaskets, specifically a shield tunnel segment joint elastic sealing gasket with a waterproof structure. BACKGROUND

[0002] The shield tunnel segment joint elastic sealing gasket with a waterproof structure has many advantages. First, it can effectively improve the sealing performance of the segment joint, preventing water leakage inside and outside the tunnel. The elastic design of the sealing gasket allows it to adapt to the slight changes in the segment due to settlement, deformation, or external loads, maintaining consistent sealing effectiveness. Second, the material of the elastic sealing gasket has good weather resistance and aging resistance, resisting the effects of water, chemicals, and temperature changes in harsh environments during the long-term operation of the tunnel, extending its service life. In addition, the design of the sealing gasket also considers the pressure distribution between the segment and the gasket, which can evenly distribute external pressure and reduce the problem of excessive local pressure, effectively preventing sealing failure. Its installation and maintenance are relatively simple, thanks to the close fit between the sealing gasket and the segment, which not only reduces errors during installation but also facilitates later maintenance and replacement, thereby reducing maintenance costs during tunnel operation. Most importantly, the use of elastic sealing gaskets ensures that tunnels can operate stably for a long time in areas with complex geological conditions or high water levels, avoiding damage to the tunnel structure caused by water leakage, providing strong protection for the safe operation of the tunnel.

[0003] As disclosed in Publication No. CN206158767U, a shield tunnel segment joint waterproof elastic sealing gasket belongs to the field of high water pressure waterproof design at the shield tunnel segment joint of oil and gas pipelines. The shield tunnel segment joint waterproof elastic sealing gasket has a "M" shaped cross-section, and the waterproof elastic sealing gasket includes a sealing gasket body made of ethylene-propylene-diene rubber, and the top end of the sealing gasket body is provided with water-swelling rubber. The sealing gasket body includes two grooves and a plurality of through holes, which are symmetrically arranged along the center line of the sealing gasket body. The shield tunnel segment joint waterproof elastic sealing gasket has a simple structure and is easy to use. By optimizing the shape, corresponding size, and arrangement of the through holes, the structure with optimal waterproof performance and mechanical properties is obtained, effectively improving the waterproof ability of the elastic sealing gasket and having high waterproof ability.

[0004] However, the common sealing gasket assembly in the application cannot be used in a stacked manner, and the sealing gasket is prone to wear and tear during long-term operation, which can cause the sealing gasket to become thin and affect the sealing operation, thereby reducing the sealing efficiency of the sealing gasket assembly. Invention content

[0005] The application aims at solving the above-mentioned problems of facilitating the thickening operation of the sealing gasket, and providing a shield tunnel segment joint elastic sealing gasket with a waterproof structure.

[0006] The technical scheme adopted by the application is as follows: a shield tunnel segment joint elastic sealing gasket with a waterproof structure, comprising a lower sealing gasket, wherein the upper end of the lower sealing gasket is provided with an auxiliary sealing gasket, the lower end of the auxiliary sealing gasket is provided with a plurality of clamping grooves, the upper end of the lower sealing gasket is fixedly connected with a plurality of positioning columns, the side surface of the positioning column is provided with a clamping plate, the inside of the positioning column is fixedly connected with a partition plate, the inside of the positioning column is fixedly connected with a spring at the adjacent position of the partition plate, the other end of the spring is fixedly connected with the clamping plate, the positioning column is clamped in the clamping groove provided at the lower end of the auxiliary sealing gasket, the clamping groove is provided with a hole with a size suitable for the clamping plate, and the size of the positioning column and the clamping groove is suitable.

[0007] By adopting the above technical scheme, in the use of the sealing gasket assembly, the positioning column is clamped in the clamping groove provided at the lower end of the auxiliary sealing gasket, and then the clamping plate is clamped in the hole provided in the clamping groove, so as to fix the position of the positioning column in the clamping groove, thereby facilitating the connection between the lower sealing gasket and the auxiliary sealing gasket, and facilitating the subsequent operation and use. In use, the lower sealing gasket and the auxiliary sealing gasket are clamped together, thereby increasing the operation thickness of the lower sealing gasket, facilitating the sealing performance during the structural operation, thereby facilitating the subsequent operation and use. By clamping the lower sealing gasket and the auxiliary sealing gasket in the clamping groove provided at the lower end of the auxiliary sealing gasket according to the positioning column, the lower sealing gasket and the auxiliary sealing gasket are in contact. When clamping, the positioning column is aligned and inserted into the clamping groove. The position of the clamping plate is extruded by the inside of the clamping groove, thereby compressing the spring and moving the position of the clamping plate, so as to clamp the positioning column into the clamping groove, and then reach the position of the hole. The clamping plate loses the extrusion of the inner wall of the clamping groove. The clamping plate is driven back to the initial position by the spring, thereby facilitating the clamping of the clamping plate into the hole, limiting the position of the positioning column, and then ensuring the connection between the lower sealing gasket and the auxiliary sealing gasket. When the lower sealing gasket and the auxiliary sealing gasket need to be separated, the worker can compress the position of the clamping plate by pulling the lower sealing gasket and the auxiliary sealing gasket and giving an external force. The position of the clamping plate is moved by the spring, so as to take out the positioning column in the clamping groove. The partition plate facilitates the limitation of the position of the spring, thereby facilitating the subsequent operation and use of the assembly, and thereby facilitating the operation and use of the worker.

[0008] In a preferred embodiment, a plurality of third circular holes are formed in the inside of the lower sealing gasket, and a plurality of fourth circular holes are formed in the inside of the lower sealing gasket at the adjacent position of the third circular holes.

[0009] By adopting the technical scheme, the third circular hole and the fourth circular hole are used in cooperation with the lower sealing gasket, so that normal operation of the lower sealing gasket assembly is ensured, the operation efficiency of the sealing gasket is ensured, and subsequent installation operation of the staff is facilitated.

[0010] In a preferred embodiment, a plurality of first circular holes are formed in the inner part of the auxiliary sealing gasket, and a plurality of second circular holes are formed in the inner part of the auxiliary sealing gasket at positions adjacent to the first circular holes.

[0011] By adopting the technical scheme, the first circular hole and the second circular hole are arranged to make the auxiliary sealing gasket structure the same as the lower sealing gasket, so that the lower sealing gasket and the auxiliary sealing gasket are connected to facilitate operation of the assembly, and normal operation of the structure is facilitated.

[0012] In a preferred embodiment, a plurality of grooves are formed in the side surfaces of the lower sealing gasket and the auxiliary sealing gasket.

[0013] By adopting the technical scheme, the grooves can increase the contact area between the sealing gasket and the pipe piece, so that the sealing gasket can be better embedded in the joint area of the pipe piece, the sealing effect is increased, displacement or loosening of the sealing gasket during tunnel operation due to external force is avoided, the sealing property of the joint is improved, and water leakage is prevented.

[0014] In a preferred embodiment, the first circular hole and the third circular hole have the same size, and the second circular hole and the fourth circular hole have the same size.

[0015] By adopting the technical scheme, the first circular hole and the third circular hole have the same size, and the second circular hole and the fourth circular hole have the same size, so that the lower sealing gasket and the auxiliary sealing gasket can be normally installed after being connected, thereby ensuring stable installation of the assembly.

[0016] In a preferred embodiment, the lower sealing gasket is composed of multiple layers of materials, and an outer waterproof layer is arranged in the inner part of the lower sealing gasket.

[0017] By adopting the technical scheme, the outer waterproof layer is usually made of rubber material with high waterproof performance, which can effectively prevent water penetration, has strong wear resistance, aging resistance, and good resistance to water pressure, and ensures the waterproof effect of the joint of the pipe piece.

[0018] In a preferred embodiment, an elastic sealing layer is arranged in the inner part of the lower sealing gasket at a lower end of the outer waterproof layer, and a corrosion-resistant layer is arranged in the inner part of the lower sealing gasket at a lower end of the elastic sealing layer.

[0019] By adopting the technical scheme, the elastic sealing layer is composed of material with excellent elasticity, and has good compressibility, resilience and flexibility, can adapt to the slight displacement or deformation of the shield tunnel due to the change of geology, and ensures long-term sealing effect, the corrosion-resistant layer is usually made of corrosion-resistant plastic, which can prevent the sealing gasket from being eroded by dissolved substances and salt in water, and helps the long-term durability of the sealing gasket in harsh environment, and prolongs the service life.

[0020] In summary, due to the adoption of the above technical scheme, the beneficial effects of the present application are:

[0021] In the application, in the use in the sealing gasket assembly, the positioning column is clamped in the clamping groove arranged at the lower end of the auxiliary sealing gasket, and then the clamping plate is clamped in the hole arranged in the clamping groove, so as to fix the position of the positioning column in the clamping groove, thereby facilitating the connection between the lower sealing gasket and the auxiliary sealing gasket, thereby facilitating subsequent operation and use, the lower sealing gasket and the auxiliary sealing gasket are clamped together during use, thereby increasing the operation thickness of the lower sealing gasket, facilitating the sealing performance during structural operation, thereby facilitating subsequent operation and use, the lower sealing gasket and the auxiliary sealing gasket are clamped in the clamping groove arranged at the lower end of the auxiliary sealing gasket according to the positioning column, so that the lower sealing gasket and the auxiliary sealing gasket are in contact, the positioning column is aligned and inserted into the clamping groove during clamping, the position of the clamping plate is extruded by the inside of the clamping groove, thereby compressing the spring and moving the position of the clamping plate, thereby facilitating the clamping of the positioning column into the clamping groove, and then reaching the position of the hole, the clamping plate is extruded by the inner wall of the clamping groove, the clamping plate is driven back to the initial position by the spring, thereby facilitating the clamping of the clamping plate into the hole, limiting the position of the positioning column, and then ensuring the connection between the lower sealing gasket and the auxiliary sealing gasket, when the lower sealing gasket and the auxiliary sealing gasket need to be separated, the worker can compress the position of the clamping plate by pulling the lower sealing gasket and the auxiliary sealing gasket, the position of the clamping plate is moved by the spring, and the positioning column in the clamping groove can be taken out, the isolation plate facilitates the limitation of the position of the spring, thereby facilitating the subsequent operation and use of the assembly, thereby facilitating the operation and use of the worker. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a shield tunnel segment joint elastic sealing gasket structure of the waterproof structure of the present application.

[0023] Figure 2 It is a lower sealing gasket structure in the present application.

[0024] Figure 3 It is an upper sealing gasket structure in the present application.

[0025] Figure 4 It is an internal structure diagram of the positioning column in the present application.

[0026] Figure 5For the composition of the lower gasket material in this application;

[0027] Figure 6 For the enlarged view at A in the figure in this application.

[0028] Marked in the figure: 1, lower gasket; 2, auxiliary gasket; 3, first circular hole; 4, second circular hole; 5, groove; 6, clamping groove; 7, positioning column; 8, clamping plate; 9, spring; 10, isolation plate; 11, outer waterproof layer; 12, elastic sealing layer; 13, corrosion-resistant layer; 14, third circular hole; 15, fourth circular hole. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0030] Embodiment:

[0031] Reference Figures 1-4 , Figure 6A waterproof elastic sealing gasket for the joint of tunnel segments includes a lower sealing gasket 1, an auxiliary sealing gasket 2 at the upper end of the lower sealing gasket 1, and multiple slots 6 at the lower end of the auxiliary sealing gasket 2. Multiple positioning posts 7 are fixedly connected to the upper end of the lower sealing gasket 1, and snap-fit ​​plates 8 are provided on the sides of the positioning posts 7. An isolation plate 10 is fixedly connected inside the positioning post 7, and a spring 9 is fixedly connected inside the positioning post 7 at a position adjacent to the isolation plate 10. The other end of the spring 9 is fixedly connected to the snap-fit ​​plate 8, and the positioning post 7 snaps into the lower end of the auxiliary sealing gasket 2. The slot 6 is provided with holes that are adapted to the size of the snap-fit ​​plate 8. The positioning post 7 is adapted to the size of the slot 6. In use within the sealing gasket assembly, the positioning post 7 is snapped into the slot 6 at the lower end of the auxiliary sealing gasket 2, and then the snap-fit ​​plate 8 is snapped into the holes in the slot 6. This fixes the position of the positioning post 7 within the slot 6, ensuring a smooth connection between the lower sealing gasket 1 and the auxiliary sealing gasket 2, thus facilitating subsequent operations. In use, the lower sealing gasket 1 and the auxiliary sealing gasket 2 are placed and snapped together, thereby increasing the lower sealing... The working thickness of gasket 1 facilitates enhanced sealing during structural operation, thus simplifying subsequent operations. By engaging the lower sealing gasket 1 and the auxiliary sealing gasket 2 into the slot 6 at the lower end of the auxiliary sealing gasket 2 using the positioning post 7, the lower sealing gasket 1 and the auxiliary sealing gasket 2 come into contact. During engagement, the positioning post 7 is aligned and inserted into the slot 6. The internal pressure of the slot 6 compresses the position of the engaging plate 8, thereby compressing the spring 9 and causing the engaging plate 8 to move. This facilitates engaging the positioning post 7 into the slot 6, reaching the position of the hole. The engaging plate 8 then loses the pressure from the inner wall of the slot 6, and the spring... 9. Move the snap-fit ​​plate 8 back to its initial position, so that the snap-fit ​​plate 8 can be easily snapped into the hole, restricting the position of the positioning post 7, and ensuring the connection between the lower sealing gasket 1 and the auxiliary sealing gasket 2. When it is necessary to separate the lower sealing gasket 1 and the auxiliary sealing gasket 2, the operator can apply external force by pulling the lower sealing gasket 1 and the auxiliary sealing gasket 2 to compress the position of the snap-fit ​​plate 8. The spring 9 drives the snap-fit ​​plate 8 to move, so that the positioning post 7 in the slot 6 can be taken out. The isolation plate 10 helps to restrict the position of the spring 9, thereby facilitating the subsequent operation and use of the component, and thus making it easier for the operator to operate and use.

[0032] Reference Figures 1-3 The lower sealing gasket 1 has multiple third circular holes 14 inside, and multiple fourth circular holes 15 are provided inside the lower sealing gasket 1 at positions adjacent to the third circular holes 14. The third circular holes 14 and fourth circular holes 15 work together with the lower sealing gasket 1 to ensure the normal operation of the lower sealing gasket 1 assembly, facilitate the operation efficiency of the sealing gasket, and make it convenient for workers to carry out subsequent installation work.

[0033] Reference Figures 1-3The inside of the auxiliary sealing gasket 2 is provided with a plurality of first circular holes 3, and the inside of the auxiliary sealing gasket 2 is provided with a plurality of second circular holes 4 at the adjacent positions of the first circular holes 3. The first circular holes 3 and the second circular holes 4 are provided to make the structure of the auxiliary sealing gasket 2 the same as that of the lower sealing gasket 1, so that the lower sealing gasket 1 and the auxiliary sealing gasket 2 are connected, and the working use of the assembly is facilitated, and the normal working use of the structure is ensured.

[0034] With reference to Figures 1-3 The side surfaces of the lower sealing gasket 1 and the auxiliary sealing gasket 2 are provided with a plurality of grooves 5. The grooves 5 can increase the contact area between the sealing gasket and the segment, so that the sealing gasket can be better embedded in the joint area of the segment, the sealing effect is increased, the displacement or loosening of the sealing gasket due to external force during tunnel operation is avoided by using the grooves 5, the sealing performance of the joint is improved, and water leakage is prevented.

[0035] With reference to Figures 1-3 The sizes of the first circular holes 3 and the third circular holes 14 are the same, and the sizes of the second circular holes 4 and the fourth circular holes 15 are the same. The sizes of the first circular holes 3 and the third circular holes 14 are the same, and the sizes of the second circular holes 4 and the fourth circular holes 15 are the same, so that the lower sealing gasket 1 and the auxiliary sealing gasket 2 can be normally installed and used after being connected, thereby ensuring the stable installation and use of the assembly.

[0036] With reference to Figures 1-3 , Figure 5 The lower sealing gasket 1 is composed of multiple layers of materials. The inside of the lower sealing gasket 1 is provided with an outer waterproof layer 11. The outer waterproof layer 11 is usually made of rubber material with high waterproof performance, which can effectively prevent water penetration. This layer has strong wear resistance, aging resistance, and good resistance to water pressure, and can ensure the waterproof effect of the joint of the segment.

[0037] With reference to Figures 1-3 , Figure 5 The inside of the lower sealing gasket 1 is provided with an elastic sealing layer 12 at the lower end of the outer waterproof layer 11. The inside of the lower sealing gasket 1 is provided with a corrosion-resistant layer 13 at the lower end of the elastic sealing layer 12. The elastic sealing layer 12 is composed of a material with excellent elasticity, which has good compressibility, resilience and flexibility, and can adapt to the slight displacement or deformation of the shield tunnel due to geological changes, thereby ensuring long-term sealing effect. The corrosion-resistant layer 13 is usually made of corrosion-resistant plastic, which can prevent the sealing gasket from being eroded by dissolved substances and salt in water, and can help the sealing gasket to have long-term durability in harsh environments and prolong the service life.

[0038] The implementation principle of the shield tunnel segment joint elastic sealing gasket with a waterproof structure according to the embodiment is as follows:

[0039] In use in the sealing gasket assembly, the positioning column 7 is clamped in the clamping groove 6 arranged at the lower end of the auxiliary sealing gasket 2, and then the clamping plate 8 is clamped in the hole arranged in the clamping groove 6, so as to fix the position of the positioning column 7 in the clamping groove 6, thereby facilitating the connection between the lower sealing gasket 1 and the auxiliary sealing gasket 2, thereby facilitating subsequent operation and use. In use, the lower sealing gasket 1 and the auxiliary sealing gasket 2 are clamped together, thereby increasing the operation thickness of the lower sealing gasket 1, facilitating the sealing performance of the structure during operation, thereby facilitating subsequent operation and use. By clamping the lower sealing gasket 1 and the auxiliary sealing gasket 2 in the clamping groove 6 arranged at the lower end of the auxiliary sealing gasket 2 according to the positioning column 7, the lower sealing gasket 1 and the auxiliary sealing gasket 2 are in contact. When clamping, the positioning column 7 is aligned and inserted into the clamping groove 6. The position of the clamping plate 8 is extruded by the inside of the clamping groove 6, thereby compressing the spring 9 and moving the position of the clamping plate 8, thereby facilitating the clamping of the positioning column 7 into the clamping groove 6, and then reaching the position of the hole. The clamping plate 8 is extruded by the inner wall of the clamping groove 6, and the clamping plate 8 is driven back to the initial position by the spring 9, thereby facilitating the clamping of the clamping plate 8 into the hole, limiting the position of the positioning column 7, and then ensuring the connection between the lower sealing gasket 1 and the auxiliary sealing gasket 2. When the lower sealing gasket 1 and the auxiliary sealing gasket 2 need to be separated, the worker pulls the lower sealing gasket 1 and the auxiliary sealing gasket 2 to compress the position of the clamping plate 8, and the position of the clamping plate 8 is moved by the spring 9, so that the positioning column 7 in the clamping groove 6 can be taken out. The isolation plate 10 facilitates the limitation of the position of the spring 9, thereby facilitating the subsequent operation and use of the assembly, thereby facilitating the operation and use of the worker. By using this structure, the operation thickness of the lower sealing gasket 1 is increased, thereby improving the sealing performance and stability of the assembly, thereby facilitating subsequent operation and use, and improving the operation efficiency of the assembly.

[0040] The above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing examples, or make equivalent replacements for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A shield tunnel segment joint elastic sealing gasket of a waterproof structure, comprising a lower sealing gasket (1), characterized in that: The upper end of the lower sealing gasket (1) is provided with an auxiliary sealing gasket (2), the lower end of the auxiliary sealing gasket (2) is provided with a plurality of clamping grooves (6), the upper end of the lower sealing gasket (1) is fixedly connected with a plurality of positioning columns (7), the side surface of the positioning column (7) is provided with a clamping plate (8), the inside of the positioning column (7) is fixedly connected with an isolation plate (10), the inside of the positioning column (7) is fixedly connected with a spring (9) at the adjacent position of the isolation plate (10), the other end of the spring (9) is fixedly connected with the clamping plate (8), the positioning column (7) is clamped in the clamping groove (6) provided at the lower end of the auxiliary sealing gasket (2), the clamping groove (6) is provided with a hole with the size adaptability of the clamping plate (8), and the size of the positioning column (7) and the clamping groove (6) is adapted.

2. A shield tunnel segment joint elastic sealing pad of a waterproof structure according to claim 1, characterized in that: The inside of the lower sealing gasket (1) is provided with a plurality of third circular holes (14), and the inside of the lower sealing gasket (1) is provided with a plurality of fourth circular holes (15) at the adjacent position of the third circular holes (14).

3. A shield tunnel segment joint elastic sealing pad of a waterproof structure according to claim 2, characterized in that: The inside of the auxiliary sealing gasket (2) is provided with a plurality of first circular holes (3), and the inside of the auxiliary sealing gasket (2) is provided with a plurality of second circular holes (4) at the adjacent position of the first circular holes (3).

4. A shield tunnel segment joint elastic sealing pad of a waterproof structure according to claim 1, characterized in that: The side surface of the lower sealing gasket (1) and the auxiliary sealing gasket (2) is provided with a plurality of grooves (5).

5. A shield tunnel segment joint elastic sealing pad of a waterproof structure according to claim 3, characterized in that: The size of the first circular hole (3) and the third circular hole (14) is the same, and the size of the second circular hole (4) and the fourth circular hole (15) is the same.

6. A shield tunnel segment joint elastic sealing pad of a waterproof structure according to claim 1, characterized in that: The lower sealing gasket (1) is composed of multiple layers of materials, and the inside of the lower sealing gasket (1) is provided with an outer waterproof layer (11).

7. A shield tunnel segment joint elastic sealing pad of a waterproof structure according to claim 1, characterized in that: The inside of the lower sealing gasket (1) is provided with an elastic sealing layer (12) at the lower end of the outer waterproof layer (11), and the inside of the lower sealing gasket (1) is provided with a corrosion-resistant layer (13) at the lower end of the elastic sealing layer (12).

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