Outer wall deformation joint waterproof structure based on water plant construction
By adopting a multi-layered collaborative waterproofing structure during the construction of the water plant, the problem of insufficient waterproofing performance of the external wall expansion joints was solved, achieving higher waterproofing reliability and stability, adapting to wall deformation, and reducing water penetration.
Patent Information
- Application Number
- CN202511239528.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-01
- Publication Date
- 2025-11-28
AI Technical Summary
In existing technologies, the waterproofing performance of the expansion joints in the exterior walls of water plant construction is poor, and there is insufficient differentiated treatment for the waterproofing needs of the inner and outer sides, resulting in uneven waterproofing effects.
A multi-layered synergistic waterproof structure is adopted, including setting an elastic waterstop in the middle of the expansion joint, filling the inner and outer areas with polyethylene material and sealing strips, and combining foam rods, protective layer and surface layer to form a multi-layered waterproof barrier.
It improves the waterproof reliability and stability of the external wall expansion joints, enhances the waterproof performance on both the inner and outer sides, adapts to wall deformation, reduces water penetration, and forms a dynamic seal.
Smart Images
Figure CN121024216A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of deformation joint waterproof structure, in particular to an outer wall deformation joint waterproof structure based on water plant construction. BACKGROUND
[0002] A deformation joint is a construction joint used in buildings, structures or roads, mainly used to accommodate expansion, contraction and vibration caused by temperature changes, structural deformation or other reasons.
[0003] During the construction of a water plant, the waterproof performance of the outer wall deformation joint is crucial to ensure the normal operation of the water plant and the stability of the building structure. However, the waterproof performance of the outer wall deformation joint is also a difficulty in construction.
[0004] In the prior art, the waterproofing of the outer wall deformation joint is mainly carried out by using a single material, and there is a lack of multi-layer collaborative waterproofing design, which means that once a layer of waterproofing material fails, the waterproofing performance of the entire outer wall deformation joint will be greatly reduced.
[0005] In addition, during actual construction, there are differences in waterproofing requirements on the inside and outside of the outer wall deformation joint. For example, the outside of the deformation joint usually faces underground water pressure, while the inside needs to be moisture-proof. Without differential treatment for the waterproofing of the inside and outside, it is easy to cause uneven waterproofing effect, thereby reducing the waterproofing effect. SUMMARY
[0006] The purpose of the present application is to provide an outer wall deformation joint waterproof structure based on water plant construction, aiming to solve the problem of poor waterproof performance of the outer wall deformation joint formed by water plant construction in the prior art.
[0007] The present application is implemented as follows: an outer wall deformation joint waterproof structure based on water plant construction includes the following construction steps:
[0008] 1) Two longitudinally arranged wall bodies are formed by construction, and adjacent wall bodies have longitudinally arranged deformation joints therebetween. The wall body has an outwardly arranged outward face, and the wall body has an inwardly arranged inward face. The deformation joint penetrates the inward face inwardly to form an inward opening, and the deformation joint penetrates the outward face outwardly to form an outward opening.
[0009] The middle part of the deformation joint has a middle part, and the middle part and the inward opening form an inward area, and the middle part and the outward opening form an outward area. An elastic deformation water stop is provided in the middle part, the middle part of the water stop has an elastic tube, and the two sides of the elastic tube respectively extend elastic flaps, the elastic flaps are embedded and fixed in the interior of the wall body, and the water stop closes and separates the middle part.
[0010] 2), filling the inward region with polyethylene material to form an inward filling layer; filling the inward opening with a foam rod made of polyethylene material, which is integrated with the inward filling layer and closes the inward opening;
[0011] 3), arranging a protective layer on the inward surface, which covers the inward opening and fixes the foam rod in the inward opening;
[0012] 4), filling the outward region with polyethylene material to form an outward filling layer, and filling the outward opening with a sealing rubber strip, which closes the outward opening;
[0013] 5), arranging a surface layer on the outward surface, which covers the outward opening and fixes the sealing rubber strip in the outward opening.
[0014] Further, in the construction step 1), the elastic tube is clamped between two wall bodies, and the elastic tube is deformed by extrusion, and the elastic tube is deformed by extrusion towards the inward opening and the outward opening respectively.
[0015] Further, in the construction step 1), the elastic wing has side parts extending on both sides respectively, and the side parts on both sides of the elastic wing are arranged in mutual misalignment, and the side parts are embedded and fixed in the interior of the wall body.
[0016] Further, in the construction step 2), the outer side of the foam rod is embedded in the inward region, and the inner side of the foam rod extends outside the inward opening to form a protruding part protruding outside the inward opening.
[0017] Further, in the construction step 4), the rubber strip made of rubber material and expanded by rainwater is in the outward filling layer, and the rubber strip is located between the sealing rubber strip and the elastic tube and is wrapped in the outward filling layer.
[0018] Further, in the construction step 4), the sealing rubber strip is recessed inwardly, and a recessed area is formed between the sealing rubber strip and the outward opening; in the construction step 5), the surface layer is embedded in the recessed area to fill the recessed area and is integrated with the sealing rubber strip.
[0019] Further, in the construction step 3), a waterproof bottom layer is coated on the inward surface, the waterproof bottom layer covers the inward opening and covers the foam rod, and the protective layer is coated on the waterproof bottom layer.
[0020] Further, in the construction step 3), a waterproof coating is coated on the waterproof bottom layer to form a coating layer, and the protective layer is coated on the coating layer.
[0021] Furthermore, in the construction step 1), the elastic tube has an elastic cavity inside, a central shaft is provided in the elastic cavity, and multiple annular elastic structures are sleeved on the outer periphery of the central shaft. The multiple annular elastic structures are arranged at intervals along the axial direction of the central shaft, and the annular elastic structures are arranged around the central shaft in the circumferential direction.
[0022] The annular elastic structure includes an elastic movable ring and a fixed ring fixed to the outer periphery of the central axis, with an annular region formed between the movable ring and the fixed ring; the annular region is provided with a plurality of metal springs, which are arranged circumferentially around the central axis, with the inner ends of the metal springs abutting against the fixed ring and the outer ends of the metal springs abutting against the movable ring.
[0023] The central shaft is inserted into the elastic cavity and extends along the axial direction of the elastic tube. The movable ring abuts against the inner wall of the elastic cavity. The central shaft is held and fixed by multiple fixed rings and is in an elastic suspension state.
[0024] When the elastic tube is compressed and deformed elastically, multiple movable rings deform elastically synchronously, multiple metal springs in the annular region deform elastically synchronously, the central shaft is driven to reciprocate along the axial direction of the elastic cavity, and the elastic tube elastically recovers its elastic force to buffer the vibration between the walls.
[0025] Furthermore, in the construction step 1), the inner end of the metal spring forms an inner end segment, the outer end of the metal spring forms an outer end segment, the middle part of the metal spring has two elastic segments arranged opposite to each other, the middle part of the elastic segments is arched and bent, and the two ends of the elastic segments are respectively connected to the inner end segment and the outer end segment.
[0026] As the central shaft is driven to reciprocate along the axial direction of the elastic cavity, the two elastic segments of the metal spring sheet undergo elastic deformation, moving towards or away from each other.
[0027] Compared with existing technologies, the waterproof structure for external wall expansion joints in water plant construction provided by this invention can improve the waterproof performance of external wall expansion joints formed during water plant construction, specifically in the following aspects:
[0028] 1) The waterstop in the middle of the expansion joint can not only prevent water from passing through, but its elasticity can also adapt to the deformation of the wall, avoiding displacement or damage of the waterstop due to the deformation of the wall, thus improving the reliability and stability of the waterproofing of the external wall expansion joint.
[0029] 2) Polyethylene filling layers are installed in the inner and outer areas of the expansion joint. These filling layers not only have good waterproof performance, but also can be tightly bonded with the foam rod to form double protection. Among them, the foam rod enhances the waterproofness inside the expansion joint and prevents water from seeping in from the opening.
[0030] 3) The separately arranged protective layer and surface layer not only cover the opening, but also fix the filling material and sealing strip, forming a multi-layer synergistic waterproofing. This allows the filling material and sealing strip to play a better role in protection, and also improves the waterproofing performance of the external wall expansion joint. Attached Figure Description
[0031] Figure 1 This is a schematic diagram of the construction process of the waterproof structure for the expansion joints of the exterior walls based on water plant construction provided by the present invention;
[0032] Figure 2 This is a front view schematic diagram of the waterproof structure for external wall expansion joints based on water plant construction provided by the present invention;
[0033] Figure 3 This is a cross-sectional schematic diagram of the elastic tube provided by the present invention;
[0034] Figure 4 This is a schematic diagram of the annular elastic structure provided by the present invention;
[0035] In the diagram: wall 100, expansion joint 101, waterstop 102, foam rod 103, sealing strip 104, rubber strip 105;
[0036] Elastic tube 200, elastic wing 201, side plate 202, elastic cavity 203, central shaft 204;
[0037] The ring-shaped elastic structure 300 includes a movable ring 301, a fixed ring 302, a metal spring 303, an inner end section 304, an outer end section 305, and an elastic section 306. Detailed Implementation
[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the invention 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 merely illustrative and not intended to limit the invention.
[0039] The implementation of the present invention will be described in detail below with reference to specific embodiments.
[0040] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0041] Reference Figures 1-4 The image shows a preferred embodiment of the present invention.
[0042] The waterproofing structure for the external wall expansion joints in water plant construction includes the following construction steps:
[0043] 1) The construction forms two longitudinally arranged walls with longitudinally arranged expansion joints between adjacent walls. The walls have outward-facing faces and inward-facing faces. The expansion joints penetrate the inward-facing faces to form inward openings, and the expansion joints penetrate the outward-facing faces to form outward openings.
[0044] The expansion joint has a central section, which forms an inward area with the inward opening and an outward area with the outward opening. The central section is equipped with an elastic waterstop, which has an elastic tube in the middle. Elastic winglets extend from both sides of the elastic tube and are embedded and fixed inside the wall. The waterstop seals and isolates the central section.
[0045] 2) The inward area is filled with polyethylene material to form an inward filling layer; the inward opening is filled with foam rods made of polyethylene material, the foam rods are integrated with the inward filling layer and the inward opening is sealed.
[0046] 3) Arrange a protective layer on the inner surface, covering the inner opening, and fix the foam rod to the inner opening;
[0047] 4) Fill the outward-facing area with polyethylene material to form an outward-facing filling layer, and fill the outward-facing opening with sealing strips to seal the outward-facing opening;
[0048] 5) Lay the surface layer facing outwards, covering the outward opening, and fix the sealing strip to the outward opening.
[0049] The aforementioned waterproofing structure for external wall expansion joints in water plant construction can improve the waterproofing performance of external wall expansion joints formed during water plant construction, specifically in the following ways:
[0050] 1) The waterstop in the middle of the expansion joint can not only prevent water from passing through, but its elasticity can also adapt to the deformation of the wall, avoiding displacement or damage of the waterstop due to the deformation of the wall, thus improving the reliability and stability of the waterproofing of the external wall expansion joint.
[0051] 2) Polyethylene filling layers are installed in the inner and outer areas of the expansion joint. These filling layers not only have good waterproof performance, but also can be tightly bonded with the foam rod to form double protection. Among them, the foam rod enhances the waterproofness inside the expansion joint and prevents water from seeping in from the opening.
[0052] 3) The separately arranged protective layer and surface layer not only cover the opening, but also fix the filling material and sealing strip, forming a multi-layer synergistic waterproofing. This allows the filling material and sealing strip to play a better role in protection, and also improves the waterproofing performance of the external wall expansion joint.
[0053] In this embodiment, during construction step 1), the elastic tube is clamped between two walls and is squeezed and deformed, with the elastic tube being squeezed and deformed towards the inward opening and the outward opening respectively.
[0054] The clamping action causes the elastic tube to take on an elliptical shape, which, while tightly fitting the wall, reduces the penetration of moisture through the gaps, thus forming an effective waterproof barrier in the middle of the expansion joint. Furthermore, the elasticity of the tube's deformation allows it to maintain its sealing performance even when the wall undergoes minor displacement.
[0055] In this embodiment, in construction step 1), side plates extend from both sides of the elastic wing, and the side plates on both sides of the elastic wing are staggered and arranged to be embedded and fixed inside the wall.
[0056] The staggered arrangement of the side panels can disperse the water penetration path and enhance the stability of the waterproof structure. In addition, the side panels embedded in the wall can fix the elastic wing and prevent it from shifting when the wall deforms, thereby improving the reliability of the waterproofing of the expansion joint.
[0057] In this embodiment, in construction step 2), the outer side of the foam rod is embedded in the inward region, and the inner side of the foam rod extends outside the inward opening, forming a protrusion that protrudes outside the inward opening.
[0058] The protrusion outside the inward opening can prevent water from directly entering the inward opening, while buffering the impact of water flow and reducing the erosion of the filling material at the opening by water flow, thus improving the waterproof effect of the inward opening.
[0059] In this embodiment, in construction step 4), the rubber strip in the outward filling layer is made of rubber material and expands with rainwater. The rubber strip is located between the sealing strip and the elastic tube and is wrapped in the outward filling layer.
[0060] In this way, the property of the rubber strip to expand when it comes into contact with water is utilized to automatically expand and fill the gap between the sealing strip and the elastic tube when moisture enters the expansion joint. This is a dynamic seal that can adapt to the minor deformations that the expansion joint cannot avoid.
[0061] In this embodiment, in construction step 4), the sealing strip is recessed inward, forming a recessed area between it and the outward opening; in construction step 5), the surface layer is embedded in the recessed area, filling the recessed area and integrating with the sealing strip.
[0062] The tight bonding between the surface layer and the sealing strip creates a multi-layered, synergistic waterproof structure, eliminating potential gaps in recessed areas and reducing the path for water penetration.
[0063] In this embodiment, during construction step 3), a waterproof underlayer is applied to the inner surface, which covers the inner opening and a foam rod, and a protective layer is applied over the waterproof underlayer.
[0064] In this way, the waterproof base layer can block water penetration while being protected by the protective layer, which improves the stability of the waterproof base layer. This double protection not only enhances the waterproof performance of the inward opening, but also effectively prevents the erosion and aging of the filling material.
[0065] In this embodiment, in construction step 3), a waterproof coating is applied to the waterproof substrate to form a coating layer, and a protective layer is applied over the coating layer.
[0066] This enhances the waterproofing performance of the inner area, makes the surface smoother, reduces the risk of water penetration, and the protective layer creates multiple layers of waterproofing, thereby improving the waterproofing effect of the expansion joint.
[0067] In this embodiment, in construction step 1), the elastic tube has an elastic cavity inside, a central shaft is provided in the elastic cavity, and multiple annular elastic structures are sleeved on the outer periphery of the central shaft. The multiple annular elastic structures are arranged at intervals along the axial direction of the central shaft and are arranged around the central shaft in the circumferential direction.
[0068] The annular elastic structure includes an elastic movable ring and a fixed ring fixed to the outer periphery of the central axis, with an annular region formed between the movable ring and the fixed ring; the annular region is provided with multiple metal springs, which are arranged circumferentially around the central axis, with the inner ends of the metal springs abutting against the fixed ring and the outer ends of the metal springs abutting against the movable ring.
[0069] The central shaft is inserted into the elastic cavity and extends along the axial direction of the elastic tube. The movable ring abuts against the inner wall of the elastic cavity. The central shaft is held and fixed by multiple fixed rings and is in an elastic suspension state.
[0070] When the elastic tube is compressed and deformed elastically, multiple moving rings deform elastically synchronously, and multiple metal springs in the annular region deform elastically synchronously. The central axis is driven and moves back and forth along the axial direction of the elastic cavity. The elastic tube elastically recovers its elastic force to buffer the vibration between the walls.
[0071] In this embodiment, in construction step 1), the inner end of the metal spring sheet forms an inner end section, the outer end of the metal spring sheet forms an outer end section, and the middle part of the metal spring sheet has two elastic sections arranged opposite to each other. The middle part of the elastic section is arched and bent, and the two ends of the elastic section are respectively connected to the inner end section and the outer end section.
[0072] As the central axis is driven to reciprocate along the axial direction of the elastic cavity, the two elastic segments of the metal spring sheet undergo elastic deformation, moving towards or away from each other.
[0073] In this way, the metal spring can provide effective elastic support and buffer when the elastic tube is squeezed and deformed, so that the elastic tube can restore its original shape after the wall is deformed, thereby maintaining good sealing performance.
[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A waterproof structure for exterior wall expansion joints in water plant construction, characterized in that, The construction steps include the following: 1) The construction forms two longitudinally arranged walls, with longitudinally arranged expansion joints between adjacent walls. The walls have an outward-facing surface and an inward-facing surface. The expansion joints penetrate the inward-facing surface to form an inward-facing opening, and the expansion joints penetrate the outward-facing surface to form an outward-facing opening. The expansion joint has a central section, which forms an inward region with an inward opening and an outward region with an outward opening. The central section is provided with an elastically deformable waterstop, which has an elastic tube in the center. Elastic winglets extend from both sides of the elastic tube and are embedded and fixed inside the wall. The waterstop seals and isolates the central section. 2) The inward-facing area is filled with polyethylene material to form an inward-facing filling layer; the inward-facing opening is filled with a foam rod made of polyethylene material, the foam rod being integrated with the inward-facing filling layer and sealing the inward-facing opening; 3) A protective layer is arranged on the inner surface, the protective layer covering the inner opening, and the foam rod is fixed to the inner opening; 4) Fill the outward-facing area with polyethylene material to form an outward-facing filling layer, and fill the outward-facing opening with a sealing strip to seal the outward-facing opening; 5) A surface layer is arranged on the outer side, the surface layer covering the outer opening, and the sealing strip is fixed to the outer opening.
2. The waterproof structure for exterior wall expansion joints based on water plant construction as described in claim 1, characterized in that, In construction step 1), the elastic tube is clamped between two walls and is squeezed and deformed, with the elastic tube being squeezed and deformed towards the inward opening and the outward opening respectively.
3. The waterproof structure for exterior wall expansion joints based on water plant construction as described in claim 1, characterized in that, In construction step 1), side plates extend from both sides of the elastic wing, and the side plates on both sides of the elastic wing are staggered with each other, and the side plates are embedded and fixed inside the wall.
4. The waterproof structure for exterior wall expansion joints based on water plant construction as described in claim 1, characterized in that, In construction step 2), the outer side of the foam rod is embedded in the inward region, and the inner side of the foam rod extends outside the inward opening, forming a protrusion that protrudes outside the inward opening.
5. The waterproof structure for exterior wall expansion joints based on water plant construction as described in claim 1, characterized in that, In construction step 4), the outward filling layer contains a rubber strip made of rubber material that expands with rainwater. The rubber strip is located between the sealing strip and the elastic tube and is wrapped in the outward filling layer.
6. The waterproof structure for exterior wall expansion joints based on water plant construction as described in claim 1, characterized in that, In construction step 4), the sealing strip is recessed inward, forming a recessed area between it and the outward opening; in construction step 5), the surface layer is embedded in the recessed area, filling the recessed area, and is integrated with the sealing strip.
7. The waterproof structure for exterior wall expansion joints based on water plant construction as described in any one of claims 1-6, characterized in that, In construction step 3), a waterproof undercoat is applied to the inner surface, the waterproof undercoat covers the inner opening and the foam rod, and the protective layer covers the waterproof undercoat.
8. The waterproof structure for exterior wall expansion joints based on water plant construction as described in claim 7, characterized in that, In construction step 3), a waterproof coating is applied to the waterproof substrate to form a coating layer, and the protective layer covers the coating layer.
9. The waterproof structure for exterior wall expansion joints based on water plant construction as described in any one of claims 1-6, characterized in that, In construction step 1), the elastic tube has an elastic cavity inside, a central shaft is provided in the elastic cavity, and multiple annular elastic structures are sleeved on the outer periphery of the central shaft. The multiple annular elastic structures are arranged at intervals along the axial direction of the central shaft and are arranged around the central shaft in a circumferential direction. The annular elastic structure includes an elastic movable ring and a fixed ring fixed to the outer periphery of the central axis, with an annular region formed between the movable ring and the fixed ring; the annular region is provided with a plurality of metal springs, which are arranged circumferentially around the central axis, with the inner ends of the metal springs abutting against the fixed ring and the outer ends of the metal springs abutting against the movable ring. The central shaft is inserted into the elastic cavity and extends along the axial direction of the elastic tube. The movable ring abuts against the inner wall of the elastic cavity. The central shaft is held and fixed by multiple fixed rings and is in an elastic suspension state. When the elastic tube is compressed and deformed elastically, multiple movable rings deform elastically synchronously, multiple metal springs in the annular region deform elastically synchronously, the central shaft is driven to reciprocate along the axial direction of the elastic cavity, and the elastic tube elastically recovers its elastic force to buffer the vibration between the walls.
10. The waterproof structure for exterior wall expansion joints based on water plant construction as described in claim 9, characterized in that, In construction step 1), the inner end of the metal spring forms an inner end section, the outer end of the metal spring forms an outer end section, the middle part of the metal spring has two elastic sections arranged opposite to each other, the middle part of the elastic sections is arched and bent, and the two ends of the elastic sections are respectively connected to the inner end section and the outer end section. As the central shaft is driven to reciprocate along the axial direction of the elastic cavity, the two elastic segments of the metal spring sheet undergo elastic deformation, moving towards or away from each other.