Composite waterproof board for high-speed rail tunnel
Through innovative design of stabilizing and auxiliary devices, the problems of time-consuming, labor-intensive, and unstable traditional bolt fixing of composite waterproof membranes have been solved, achieving boltless fastening and uniform adsorption force, thus improving the stability and service life of composite waterproof membranes used in high-speed railway tunnels.
Patent Information
- Application Number
- CN202520130252.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2035-01-20
AI Technical Summary
The existing composite waterproof membrane is time-consuming and labor-intensive to fix with traditional fastening bolts, and the loss of bolts affects the structural stability, resulting in weak connection.
Employing stabilizing and auxiliary devices, boltless fastening is achieved through the combination of sliding plates, clamping plates, sliding columns, slots, square holes, and springs; the auxiliary devices utilize airbags, suction pipes, vertical plates, and suction nozzles to generate negative pressure, enhancing the fixing effect.
This achieves boltless fastening, improves connection stability, avoids damage to the board material due to concentrated stress, and enhances the overall stability and service life of the waterproof board.
Smart Images

Figure CN223549283U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of waterproof membrane technology, specifically relating to a composite waterproof membrane for high-speed railway tunnels. Background Technology
[0002] Composite waterproofing membranes are multi-layered waterproofing materials, typically composed of a substrate and a waterproofing layer bonded together using a special process. Common composite waterproofing membranes include polyvinyl chloride (PVC) waterproofing membranes and modified bitumen waterproofing membranes, and are widely used in waterproofing projects for building roofs, basements, bridges, tunnels, etc. They possess excellent waterproofing performance, weather resistance, corrosion resistance, and tensile strength, effectively preventing water penetration and structural damage.
[0003] Chinese patent publication number CN214774444U discloses a composite waterproof membrane, including a main body and waterproof strips. The waterproof strips can prevent water from entering through the joints, and the waterproof strips are arranged in parallel. This patent overcomes the shortcomings of the prior art by incorporating a first fixing plate, a second fixing plate, a telescopic rod, a rock wool layer, and a waterproof layer. During installation, adjusting the switch causes the telescopic rod to move the first and second fixing plates inward, thereby fixing and clamping the internal structure, making it more secure and less prone to loosening. With the rock wool layer and waterproof layer, the waterproof membrane can effectively absorb infiltrated water during use, ensuring the dryness of the internal structure. It has strong waterproof performance, high practicality, and improves the service life of the waterproof membrane, which is beneficial for practical use.
[0004] However, the current composite waterproof membrane has the following problems: the waterproof membrane is fixed by traditional fastening bolts, which is more time-consuming and labor-intensive, and the loss will affect the stability of the subsequent structure, resulting in the connection part being not firm. Therefore, we propose a composite waterproof membrane for high-speed railway tunnels. Utility Model Content
[0005] The purpose of this utility model is to provide a composite waterproof membrane for high-speed railway tunnels, which can solve the problems in related technologies where the waterproof membrane is fixed by traditional fastening bolts, which is more time-consuming and labor-intensive, and the loss of bolts affects the stability of subsequent structures, resulting in weak connections.
[0006] The specific technical solution adopted by this utility model is as follows:
[0007] A composite waterproof membrane for high-speed railway tunnels includes a main body of the waterproof membrane. Several alignment holes are formed on the side of the main body. Several insert rods are fixedly connected to the side of the main body. A stabilizing device is provided on the outer wall of the main body. The stabilizing device includes two fastening plates, the inner walls of which are fixedly connected to the outer wall of the main body. Two connecting columns are fixedly connected to the side of the fastening plates. A retaining plate is slidably connected to the outer wall of the connecting columns. A sliding column is slidably connected to the inner wall of the retaining plate. A groove is formed on the circumferential surface of the sliding column. A square hole is formed on the side of the fastening plates. A sliding plate is slidably connected to the inner wall of the square hole. A fixing plate is fixedly connected to the side of the main body. A spring is provided between the fixing plate and the sliding plate. A reinforcing plate is fixedly connected to the inner wall of the sliding plate. The diameter of the groove is equal to the diameter of the square hole. The sliding plate is located on the movement trajectory of the sliding column. One end of the sliding plate has an arc surface design. The fastening plate is located on the movement trajectory of the reinforcing plate.
[0008] The side of the fixing plate is provided with an auxiliary device, which includes a connecting plate. The side of the connecting plate is fixedly connected to the side of the fixing plate. An airbag is fixedly connected to the side of the connecting plate. An air extraction tube is fixedly connected to the side of the airbag. The end of the air extraction tube away from the airbag is fixedly connected to the side of the reinforcing plate. A vertical plate is fixedly connected to the side of the reinforcing plate. The end of the airbag away from the connecting plate is fixedly connected to the side of the vertical plate. Several suction nozzles are fixedly connected to the side of the reinforcing plate. The fastening plate is located on the movement trajectory of the suction nozzles. There is a gap between the airbag and the waterproof plate body. Two pairs of auxiliary devices are provided and are linearly arrayed on the side of the fastening plate.
[0009] The technical effects achieved by this utility model are as follows:
[0010] This utility model, through the setting of a stabilizing device, enables the fastening plate, connecting column, clamping plate, sliding column, slot, square hole, sliding plate, fixing plate, spring, and reinforcing plate to cooperate. The spring resets, thereby driving the sliding plate to reset. The reset sliding plate is snapped into the slot on the cylindrical surface of the sliding column, thereby fixing the fastening plate and clamping plate. This structure avoids the need for traditional bolts for fastening, which is more time-consuming and labor-intensive. At the same time, the reset of the sliding plate causes the reinforcing plate to clamp the fastening plate and clamping plate, enhancing the overall stability.
[0011] This invention, through the setting of auxiliary devices, enables the connecting plate, airbag, suction pipe, vertical plate, and suction nozzle to work together. At the same time, the movement of the reinforcing plate drives the movement of the vertical plate. The movement of the vertical plate causes the airbag to draw air from the inside of the suction nozzle through the suction pipe, generating negative pressure, thereby enhancing the fixing effect of the suction nozzle on the fastening plate and clamping plate. The suction nozzle fixation can evenly distribute the suction force to the surface of the fastening plate and clamping plate, avoiding the damage to the material caused by concentrated stress like bolts or clamps. This uniform adsorption force can effectively prevent the deformation or damage of the object. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the entire utility model;
[0013] Figure 2 This is a schematic diagram of the structure at the sliding column of this utility model;
[0014] Figure 3 This is a schematic diagram of the structure of the stabilizing device of this utility model;
[0015] Figure 4 This is a utility model Figure 3 A schematic diagram of the structure at point A in the middle;
[0016] Figure 5 This is a schematic diagram of the structure of the auxiliary device of this utility model.
[0017] The attached diagram lists the components represented by each number as follows:
[0018] 1. Waterproof membrane body; 2. Alignment hole; 3. Insert rod; 4. Stabilizing device; 41. Fastening plate; 42. Connecting column; 43. Clamping plate; 44. Sliding column; 45. Groove; 46. Square hole; 47. Slide plate; 48. Fixing plate; 49. Spring; 410. Reinforcing plate; 5. Auxiliary device; 51. Connecting plate; 52. Airbag; 53. Suction pipe; 54. Vertical plate; 55. Suction nozzle. Detailed Implementation
[0019] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0020] like Figures 1-5As shown, a composite waterproof membrane for high-speed railway tunnels includes a waterproof membrane body 1. Several alignment holes 2 are formed on the side of the waterproof membrane body 1. Several insert rods 3 are fixedly connected to the side of the waterproof membrane body 1. A stabilizing device 4 is provided on the outer wall of the waterproof membrane body 1. The stabilizing device 4 includes two fastening plates 41, the inner walls of which are fixedly connected to the outer wall of the waterproof membrane body 1. Two connecting posts 42 are fixedly connected to the side of the fastening plates 41. A clamping plate 43 is slidably connected to the outer wall of the connecting posts 42, and a sliding column 4 is slidably connected to the inner wall of the clamping plate 43. 4. A slot 45 is provided on the circumferential surface of the sliding column 44. A square hole 46 is provided on the side of the fastening plate 41. A sliding plate 47 is slidably connected to the inner wall of the square hole 46. A fixing plate 48 is fixedly connected to the side of the waterproof plate body 1. A spring 49 is provided between the fixing plate 48 and the sliding plate 47. A reinforcing plate 410 is fixedly connected to the inner wall of the sliding plate 47. The diameter of the slot 45 is equal to the diameter of the square hole 46. The sliding plate 47 is located on the movement trajectory of the sliding column 44. One end of the sliding plate 47 is designed with an arc surface. The fastening plate 41 is located on the movement trajectory of the reinforcing plate 410.
[0021] According to the above structure, when the worker presses the sliding column 44, the sliding column 44 moves backward and contacts the arc surface of the slide plate 47, causing the slide plate 47 to move to both sides. The movement of the slide plate 47 to both sides compresses the spring 49. When the sliding column 44 has completely passed the slide plate 47, the spring 49 returns to its original position through its own elasticity. The return of the spring 49 drives the slide plate 47 to return to its original position. The returned slide plate 47 is snapped into the groove 45 on the cylindrical surface of the sliding column 44, thereby fixing the fastening plate 41 and the clamping plate 43. This structure avoids the need for traditional bolts for fastening, which is more time-consuming and labor-intensive. At the same time, the return of the slide plate 47 causes the reinforcing plate 410 to clamp the fastening plate 41 and the clamping plate 43, enhancing the overall stability.
[0022] like Figures 1-5 As shown, an auxiliary device 5 is provided on the side of the fixed plate 48. The auxiliary device 5 includes a connecting plate 51. The side of the connecting plate 51 is fixedly connected to the side of the fixed plate 48. An airbag 52 is fixedly connected to the side of the connecting plate 51. An air extraction tube 53 is fixedly connected to the side of the airbag 52. The end of the air extraction tube 53 away from the airbag 52 is fixedly connected to the side of the reinforcing plate 410. A vertical plate 54 is fixedly connected to the side of the reinforcing plate 410. The end of the airbag 52 away from the connecting plate 51 is fixedly connected to the side of the vertical plate 54. Several suction nozzles 55 are fixedly connected to the side of the reinforcing plate 410. The fastening plate 41 is located on the movement trajectory of the suction nozzles 55. There is a gap between the airbag 52 and the waterproof plate body 1. Two pairs of auxiliary devices 5 are provided and are linearly arrayed on the side of the fastening plate 41.
[0023] According to the above structure, the movement of the reinforcing plate 410 simultaneously drives the movement of the suction nozzle 55. The suction nozzle 55 contacts the fastening plate 41 and the clamping plate 43. At the same time, the movement of the reinforcing plate 410 drives the movement of the vertical plate 54. The movement of the vertical plate 54 causes the airbag 52 to draw air from the inside of the suction nozzle 55 through the suction pipe 53, generating negative pressure, thereby strengthening the fixing effect of the suction nozzle 55 on the fastening plate 41 and the clamping plate 43. The fixing of the suction nozzle 55 can evenly distribute the suction force to the surface of the fastening plate 41 and the clamping plate 43, avoiding the damage to the plate caused by concentrated stress like bolts or clamps. This uniform adsorption force can effectively prevent the deformation or damage of the object.
[0024] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A composite waterproof membrane for high-speed railway tunnels, characterized in that: The system includes a waterproof membrane body (1), with several alignment holes (2) on its side. Several insert rods (3) are fixedly connected to the side of the waterproof membrane body (1). A stabilizing device (4) is provided on the outer wall of the waterproof membrane body (1). The stabilizing device (4) includes two fastening plates (41), the inner walls of which are fixedly connected to the outer wall of the waterproof membrane body (1). Two connecting columns (42) are fixedly connected to the side of the fastening plates (41). The outer walls of the connecting columns (42) slide... A card plate (43) is movably connected, and a sliding column (44) is slidably connected to the inner wall of the card plate (43). A slot (45) is opened on the circumferential surface of the sliding column (44). A square hole (46) is opened on the side of the fastening plate (41). A sliding plate (47) is slidably connected to the inner wall of the square hole (46). A fixing plate (48) is fixedly connected to the side of the waterproof plate body (1). A spring (49) is provided between the fixing plate (48) and the sliding plate (47). A reinforcing plate (410) is fixedly connected to the inner wall of the sliding plate (47).
2. The composite waterproof membrane for high-speed railway tunnels according to claim 1, characterized in that: The diameter of the slot (45) is equal to the diameter of the square hole (46), and the slide plate (47) is located on the movement trajectory of the slide column (44).
3. The composite waterproof membrane for high-speed railway tunnels according to claim 1, characterized in that: One end of the skateboard (47) is designed with an arc surface, and the fastening plate (41) is located on the movement trajectory of the reinforcing plate (410).
4. The composite waterproof membrane for high-speed railway tunnels according to claim 1, characterized in that: An auxiliary device (5) is provided on the side of the fixed plate (48). The auxiliary device (5) includes a connecting plate (51). The side of the connecting plate (51) is fixedly connected to the side of the fixed plate (48). An airbag (52) is fixedly connected to the side of the connecting plate (51). An air suction pipe (53) is fixedly connected to the side of the airbag (52). The end of the air suction pipe (53) away from the airbag (52) is fixedly connected to the side of the reinforcing plate (410). A vertical plate (54) is fixedly connected to the side of the reinforcing plate (410). The end of the airbag (52) away from the connecting plate (51) is fixedly connected to the side of the vertical plate (54). A plurality of suction nozzles (55) are fixedly connected to the side of the reinforcing plate (410).
5. A composite waterproof membrane for high-speed railway tunnels according to claim 4, characterized in that: The fastening plate (41) is located on the movement trajectory of the suction nozzle (55), and there is a gap between the airbag (52) and the waterproof plate body (1).
6. A composite waterproof membrane for high-speed railway tunnels according to claim 4, characterized in that: The auxiliary device (5) is provided in two pairs and linearly arrayed on the side of the fastening plate (41).
Citation Information
Patent Citations
Composite waterproof board
CN214774444U