Wall bushing device of underground structure

Abstract

The invention provides an underground structure wall bushing device, which comprises a wall bushing, a rear-mounted water stop ring and a blocking body, the rear-mounted water stop ring comprises a ring body sheet and a ring sleeve, and the blocking body is arranged in the wall bushing and comprises a first blocking body and a second blocking body which are arranged at two ends of the wall bushing. According to the waterproof wall bushing device, the construction cost is lower, the construction cost is reduced, the internal thread wall bushing is used in cooperation with the plug bolt, the problem that the middle section of a traditional three-section opposite-pull screw cannot be detached is solved, secondary utilization of materials is achieved, resource waste is reduced, and the waterproof wall bushing device is suitable for popularization and application. The problem that screw thread connection between sections of a traditional three-section opposite-pull water stop screw is prone to damage is effectively solved, and the bearing capacity and safety of the whole structure are improved.

Description

Technical Field

[0001] The present application relates to the field of building construction waterproofing, and in particular to an underground structure wall sleeve device. Background Art

[0002] In underground structure wall construction, tie-threaded wall sleeves are crucial components for ensuring structural stability and waterproofing. Currently, two types of tie-threaded wall sleeves are commonly used in underground structure wall formwork construction: standard sleeves and sleeves with waterstops.

[0003] However, the existing technology of the tension screw wall sleeve still has the following problems: First, the three-section tension water-stop screw is expensive, which increases the project cost; second, the middle section of the three-section tension screw cannot be removed in the concrete wall and cannot be reused, resulting in a waste of resources; third, the three-section tension water-stop screw segments are connected by threads, and frequent dismantling operations will cause damage to the threads, affecting the bearing capacity of the tension screw; fourth, if the damaged screw is not replaced in time, it will cause safety hazards and even cause wall formwork explosion incidents, affecting the quality and safety of the project and causing cost waste. Therefore, there is an urgent need for a simple, low-cost, reusable and safe and reliable tension screw waterproof wall sleeve structure for underground structure wall formwork construction. Summary of the Invention

[0004] This application provides the following technical solutions to address the defects of the existing three-section pull-to-pull water-stop screws, such as high cost, the middle section cannot be removed resulting in waste of resources, the threaded connection is easily damaged affecting the bearing capacity, and the waterproof effect is poor.

[0005] The present application provides an underground structure wall-penetrating sleeve device, which includes a wall-penetrating sleeve, a post-installed water-stop ring and a blocking body, wherein the post-installed water-stop ring includes a ring body and a ring sleeve, and the blocking body is arranged in the wall-penetrating sleeve, including a first blocking body and a second blocking body arranged at both ends of the wall-penetrating sleeve.

[0006] In one embodiment, the inner wall of the wall sleeve is provided with threads.

[0007] In one embodiment, the wall sleeve is made of PVC, UPVC or PE.

[0008] In one embodiment, the post-installed water stop ring is bonded to the middle position of the wall sleeve by liquid raw tape.

[0009] In one embodiment, the thickness of the annular piece is not less than 2 mm, and its outer radius is about 20 mm larger than the outer radius of the wall sleeve.

[0010] In one embodiment, the plugging body includes a first plugging bolt and a second plugging bolt.

[0011] In one embodiment, the plug bolt is made of the same material as the wall sleeve. The first plug bolt is arranged on the water-facing side of the wall sleeve and penetrates into the wall sleeve by a length of not less than 70 mm. The second plug bolt is arranged on the non-water-facing side of the wall sleeve and penetrates into the wall sleeve by a length of not less than 50 mm.

[0012] In one embodiment, the wall thickness of the rear-mounted water stop ring sleeve is not less than 1.5 mm, the width is not less than 30 mm, and the inner diameter matches the outer diameter of the wall sleeve.

[0013] In one embodiment, the rear-mounted water stop ring is made of the same material as the wall sleeve, and the ring body and the ring sleeve are an integral structure.

[0014] In one embodiment, a liquid raw material tape is provided on the surface of the plugging body.

[0015] The beneficial effects of this application are:

[0016] 1. Compared with the three-stage tensioning water-stop screw in the prior art, the waterproof wall bushing device of this application has lower construction cost and reduces engineering costs;

[0017] 2. This application uses an internally threaded wall sleeve in conjunction with a plug bolt, avoiding the problem of the middle section of the traditional three-section tension screw being unable to be removed, achieving secondary use of materials and reducing resource waste;

[0018] 3. This application effectively solves the problem of easily damaged threaded connections between segments of the traditional three-stage pull-together waterstop screw by combining an internally threaded wall sleeve with a post-installed waterstop ring, thereby improving the load-bearing capacity and safety of the overall structure.

[0019] 4. The post-installed water stop ring of this application uses liquid raw tape bonding to enhance the waterproof effect and effectively prevent wall leakage;

[0020] 5. This application combines the advantages of a three-stage tensioning waterstop screw and a traditional tensioning screw with a wall sleeve, has a simple structure, is easy to construct, has good water-blocking and waterproofing effects, and significantly improves safety and economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present application and its features, features, configurations, and advantages will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings. Like reference numerals indicate like parts throughout the drawings. The drawings are not drawn to scale, emphasis being placed on illustrating the subject matter of the present application.

[0022] Figure 1 Schematic cross-sectional view of a wall bushing device including a tension screw in one embodiment of the present application;

[0023] Figure 2 Schematic cross-sectional view of a wall bushing device including a blocking body in one embodiment of the present application;

[0024] Figure 3 This is a partial enlarged view of the rear-mounted water stop ring in one embodiment of the present application;

[0025] Figure 4 Schematic diagram of the connection between the wall bushing and the rear-mounted water stop ring in one embodiment of the present application;

[0026] Numbers in the figure: 1. Self-adhesive wall sleeve; 1-1. Pipe wall; 1-2. Inner coating; 1-3. Outer coating; 2. Cement mortar; 3. Tension screw; 4. Concrete wall. DETAILED DESCRIPTION

[0027] The technical solutions of the present application will be described clearly and completely below through examples with reference to the accompanying drawings. It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by those of ordinary skill in the art to which this application belongs.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless otherwise expressly specified in the present application, the singular form is also intended to include the plural form, and it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0029] Example 1

[0030] The present embodiment provides a wall-penetrating sleeve device for an underground structure, which includes a wall-penetrating sleeve, a post-installed water-stop ring and a plugging body, wherein the post-installed water-stop ring includes a ring body and a ring sleeve, and the plugging body is arranged in the wall-penetrating sleeve, including a first plugging body and a second plugging body arranged at both ends of the wall-penetrating sleeve. The inner wall of the wall-penetrating sleeve is provided with a thread. The wall-penetrating sleeve is made of PVC, UPVC or PE. The post-installed water-stop ring is made of the same material as the wall-penetrating sleeve, the ring body and the ring sleeve are an integral structure, and are bonded to the middle position of the wall-penetrating sleeve by liquid raw tape. The ring body adopts a circular design and the thickness of the ring body is not less than 2 mm. Its outer radius is about 20 mm larger than the outer radius of the wall-penetrating sleeve. The wall thickness of the post-installed water-stop ring sleeve is not less than 1.5 mm, the width is not less than 30 mm, and the inner diameter matches the outer diameter of the wall-penetrating sleeve. The plugging body includes a first plugging bolt and a second plugging bolt. The plugging bolts are made of the same material as the wall sleeve. The first plugging bolt is installed on the water-facing side of the wall sleeve and extends at least 70mm into the wall sleeve. The second plugging bolt is installed on the non-water-facing side of the wall sleeve and extends at least 50mm into the wall sleeve. A liquid raw tape is applied to the surface of the plugging body.

[0031] Specifically, such as Figures 1-4 As shown, the internal threaded wall sleeve provided in this embodiment is made of PVC material, which has good corrosion resistance and waterproof performance. The inner wall of the wall sleeve is provided with a thread for connecting with the plug bolt. The length of the internal threaded wall sleeve is determined according to the thickness of the wall, usually 300mm to 600mm, and the diameter is 20mm to 22mm. The wall thickness of the internal threaded wall sleeve is 2mm to 3mm, ensuring that it has sufficient strength to withstand the pressure during concrete pouring. Both ends of the internal threaded wall sleeve are provided with internal threads, the thread specification is M16, the pitch is 2mm, and the thread depth is 1.5mm. The outer surface of the internal threaded wall sleeve is smooth, which is convenient for combining with concrete.

[0032] The post-installed waterstop is made of the same material as the internally threaded wall sleeve, also made of PVC. The post-installed bonded waterstop is factory-fabricated from a body and sleeve. The body is disc-shaped, with a diameter of 60mm to 65mm and a thickness of 2mm to 3mm. The sleeve is cylindrical, with an inner diameter that matches the outer diameter of the internally threaded wall sleeve and a length of 20mm to 30mm. The body is located in the middle of the sleeve, forming an integral waterstop structure. The post-installed bonded waterstop is bonded to the internally threaded wall sleeve using liquid raw tape. The liquid raw tape is made of polytetrafluoroethylene and offers excellent sealing and durability.

[0033] The plug bolt is also made of PVC, the same material as the internal threaded wall sleeve. The outer diameter of the plug bolt matches the internal thread of the internal threaded wall sleeve, and the length is 50mm to 70mm. The head of the plug bolt is designed to be hexagonal, which is convenient for tightening or removing with a wrench. The threaded portion of the plug bolt is 40mm to 60mm long, and the thread specifications match the internal thread of the internal threaded wall sleeve. The end of the plug bolt is provided with a sealing gasket made of rubber with a thickness of 2mm to 3mm to ensure the sealing after connection with the internal threaded wall sleeve. When installing the plug bolt, first apply liquid raw tape to its threaded portion, and then screw it into the internal threaded wall sleeve to form a reliable waterproof seal.

[0034] The working principle of the tension screw waterproof wall sleeve structure used in the underground structure wall formwork construction is as follows:

[0035] During the formwork construction of underground structure walls, the internally threaded wall sleeve is first inserted through the wall formwork, leaving both ends exposed. A post-installed adhesive waterstop is then installed at the appropriate location on the internally threaded wall sleeve. Liquid raw tape secures the post-installed waterstop to the internally threaded wall sleeve. The ring body of the post-installed adhesive waterstop is perpendicular to the axis of the internally threaded wall sleeve, forming a waterproof barrier.

[0036] After the concrete pour is complete and reaches a certain strength, the wall formwork is removed, exposing the ends of the internally threaded wall sleeves. After the tie rods are removed from the internally threaded wall sleeves, plugs are installed at each end. During installation, apply liquid tack tape to the threads of the plugs, then screw the plugs into the internally threaded wall sleeves until they are tightened. The liquid tack tape creates a reliable seal between the plugs and the internally threaded wall sleeves, preventing moisture from penetrating.

[0037] The advantages of this waterproof wall bushing structure are:

[0038] The internal threaded wall sleeve, post-installed bonded water stop ring and plug bolt are all made of PVC, which has good corrosion resistance and waterproof performance, and is suitable for the long-term waterproofing requirements of underground structures.

[0039] The post-installed bonded water stop ring is firmly bonded to the internal thread wall sleeve through liquid raw tape, forming a reliable waterproof barrier, effectively preventing moisture from penetrating along the contact surface between the internal thread wall sleeve and the concrete.

[0040] The plug bolt is connected to the internal thread wall sleeve through threads and sealed with liquid raw tape to form a double waterproof protection to ensure the waterproof performance of the underground structure.

[0041] The waterproof through-wall sleeve is simple to install and remove, can be repeatedly used, reduces construction cost and improves construction efficiency.

[0042] Embodiment two

[0043] The female threaded through-wall sleeve is made of UPVC material, has higher strength and rigidity, and is suitable for underground structures that bear large pressure. The inner wall of the female threaded through-wall sleeve is provided with threads for cooperating with the plug bolt. The length of the female threaded through-wall sleeve is 400-700 mm, and the diameter is 22-25 mm. The wall thickness of the female threaded through-wall sleeve is 2.5-3.5 mm, ensuring sufficient strength to bear the pressure during concrete pouring. Both ends of the female threaded through-wall sleeve are provided with female threads, the thread specification is M18, the pitch is 2 mm, and the thread depth is 1.5 mm. The outer surface of the female threaded through-wall sleeve is provided with a shallow groove to enhance the bonding force with the concrete.

[0044] The rear-mounted adhesive type water stop ring is made of the same UPVC material as the female threaded through-wall sleeve. The rear-mounted adhesive type water stop ring is formed by a rear-mounted adhesive type water stop ring body piece and a rear-mounted adhesive type water stop ring sleeve, which are processed into a whole in the production factory. The rear-mounted adhesive type water stop ring body piece is disc-shaped, with a diameter of 70-75 mm and a thickness of 2-3 mm. The rear-mounted adhesive type water stop ring sleeve is cylindrical, with an inner diameter matching the outer diameter of the female threaded through-wall sleeve and a length of 25-35 mm. The rear-mounted adhesive type water stop ring body piece is located in the middle of the rear-mounted adhesive type water stop ring sleeve, forming a whole water stop structure. The rear-mounted adhesive type water stop ring is bonded to the female threaded through-wall sleeve by a liquid raw material belt, which is made of modified polytetrafluoroethylene material and has better adhesion and water resistance.

[0045] The plug bolt is also made of UPVC material, which is consistent with the material of the female threaded through-wall sleeve. The outer diameter of the plug bolt matches the inner threads of the female threaded through-wall sleeve, and the length is 60-80 mm. The head of the plug bolt is designed as an octagon to increase the torque, making it easier to tighten or remove with a wrench. The length of the threaded part of the plug bolt is 50-70 mm, and the thread specification matches the inner threads of the female threaded through-wall sleeve. The end of the plug bolt is provided with a composite gasket made of butyronitrile rubber and polyurethane composite material, with a thickness of 2.5-3.5 mm to ensure the sealing performance after connecting with the female threaded through-wall sleeve. When installing the plug bolt, liquid raw material belt is applied to the threaded part, and then the plug bolt is screwed into the female threaded through-wall sleeve to form a reliable waterproof seal.

[0046] The working principle of the through-wall sleeve structure is the same as that of embodiment one, but due to the use of UPVC material, it has higher strength and rigidity, and is suitable for underground structures that bear large pressure, such as underground garages, underground shopping malls, and other deep underground buildings.

[0047] Embodiment three

[0048] The female threaded through-wall sleeve provided by the embodiment is made of PE material, has good flexibility and low-temperature resistance, and is suitable for underground structures in cold regions. The inner wall of the female threaded through-wall sleeve is provided with threads for cooperating with the plug bolt. The length of the female threaded through-wall sleeve is 350 mm to 650 mm, and the diameter is 25 mm to 28 mm. The wall thickness of the female threaded through-wall sleeve is 2.5 mm to 3.5 mm, ensuring that it has sufficient strength to withstand the pressure during concrete pouring. Both ends of the female threaded through-wall sleeve are provided with female threads, the thread specification is M20, the pitch is 2 mm, and the thread depth is 1.5 mm. The outer surface of the female threaded through-wall sleeve is provided with a spiral protrusion to enhance the bonding force with the concrete.

[0049] The rear-mounted adhesive type water stop ring is made of the same PE material as the female threaded through-wall sleeve. The rear-mounted adhesive type water stop ring is formed by a rear-mounted adhesive type water stop ring body piece and a rear-mounted adhesive type water stop ring sleeve, which are processed into a whole in a production factory. The rear-mounted adhesive type water stop ring body piece is in the shape of an octagonal star, with an inscribed circle diameter of 65 mm to 70 mm and a thickness of 2 mm to 3 mm. The octagonal star design increases the contact area with the concrete, improving the waterproof effect. The rear-mounted adhesive type water stop ring sleeve is in the shape of a cylinder, with an inner diameter matching the outer diameter of the female threaded through-wall sleeve and a length of 22 mm to 32 mm. The rear-mounted adhesive type water stop ring body piece is located in the middle of the rear-mounted adhesive type water stop ring sleeve, forming a whole water stop structure. The rear-mounted adhesive type water stop ring is bonded to the female threaded through-wall sleeve by a liquid raw material belt, which is made of a silicone rubber base material and has good low-temperature performance and elasticity.

[0050] The plug bolt is also made of PE material, which is consistent with the material of the female threaded through-wall sleeve. The outer diameter of the plug bolt matches the female threads of the female threaded through-wall sleeve, and the length is 55 mm to 75 mm. The head of the plug bolt is designed in the shape of a cross slot, which is convenient for tightening or disassembling with a screwdriver. The length of the threaded part of the plug bolt is 45 mm to 65 mm, and the thread specification matches the female threads of the female threaded through-wall sleeve. The end of the plug bolt is provided with a double-layer sealing gasket, with the inner layer made of silicone and the outer layer made of nitrile rubber, and the total thickness is 3 mm to 4 mm, ensuring the sealing performance after connecting with the female threaded through-wall sleeve. When installing the plug bolt, liquid raw material belt is applied to the threaded part, and then the plug bolt is screwed into the female threaded through-wall sleeve, forming a reliable waterproof seal.

[0051] The working principle of the counter-pull screw waterproof through-wall sleeve structure for underground structure wall formwork construction is the same as that of Embodiment One, but since PE material is used, it has good flexibility and low-temperature resistance, and is suitable for underground structures in cold regions, such as underground pipe galleries and basements in northern regions.

[0052] Those skilled in the art should understand that the skilled in the art can realize the variants in combination with the prior art and the above-mentioned embodiments, which are not described here in detail. Such variants do not affect the essential content of the present application and are not described here in detail.

[0053] The preferred embodiments of the present application are described above. It should be understood that the present application is not limited to the specific embodiments described above, wherein the devices and structures not described in detail should be understood as being implemented in the ordinary way in the art; any person skilled in the art can make many possible changes and modifications to the technical solutions of the present application, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solutions of the present application, which does not affect the essential content of the present application. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the content of the technical solutions of the present application, still belongs to the scope of protection of the technical solutions of the present application.

Claims

1. An underground structure wall casing device, characterized in that: The wall sleeve device includes a wall sleeve, a post-installed water stop ring and a blocking body, wherein the post-installed water stop ring includes a ring body and a ring sleeve, and the blocking body is arranged in the wall sleeve, including a first blocking body and a second blocking body arranged at both ends of the wall sleeve.

2. The underground structure wall sleeve device according to claim 1, characterized in that: The inner wall of the wall sleeve is provided with threads.

3. The underground structure wall sleeve device according to claim 1, characterized in that: The wall bushing is made of PVC, UPVC or PE.

4. The underground structure wall casing device according to claim 1, characterized in that: The rear-mounted water-stop ring is bonded to the middle position of the wall sleeve by liquid raw tape.

5. The underground structure wall sleeve device according to claim 1, characterized in that: The thickness of the annular body piece is not less than 2 mm, and its outer radius is about 20 mm larger than the outer radius of the wall sleeve.

6. The underground structure wall sleeve device according to claim 1, characterized in that: The plugging body includes a first plugging bolt and a second plugging bolt.

7. The underground structure wall sleeve device according to claim 6, characterized in that: The plug bolt is made of the same material as the wall sleeve. The first plug bolt is arranged on the water-facing side of the wall sleeve, and the length of the plug penetrating into the wall sleeve is not less than 70 mm. The second plug bolt is arranged on the non-water-facing side of the wall sleeve, and the length of the plug penetrating into the wall sleeve is not less than 50 mm.

8. The underground structure wall sleeve device according to claim 1, characterized in that: The wall thickness of the rear-mounted water-stop ring sleeve is not less than 1.5 mm, the width is not less than 30 mm, and the inner diameter matches the outer diameter of the wall sleeve.

9. The underground structure wall casing device according to claim 1, characterized in that: The rear-mounted water-stop ring is made of the same material as the wall sleeve, and the ring body and the ring sleeve are an integral structure.

10. The underground structure wall sleeve device according to claim 1, characterized in that: A liquid raw material belt is provided on the surface of the plugging body.

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