A sleeve for a roof wire-through pipe, a roof and a sleeve sealing structure

Abstract

The utility model discloses a kind of sleeve pipes for roof line pipe, including sleeve body, backwater surface closure and water surface closure, the top of sleeve body outer wall is equipped with water surface stop ring, middle part is equipped with intermediate stop ring, bottom is equipped with backwater surface stop ring, the top of sleeve body is stretched from the upside of water surface stop ring, and is set as the water surface connecting end for being connected with water surface closure, the bottom of sleeve body is set as the backwater surface connecting end for being connected with backwater surface closure.Also disclosed is a kind of roof, sleeve body is pre-buried in roof, water surface stop ring is in contact with the upper surface of roof, backwater surface stop ring is in contact with the lower surface of roof or is embedded in the lower surface of roof. Also disclosed is a kind of sleeve pipe sealing structure, backwater surface closure is connected with backwater surface connecting end, sleeve body is filled with high-strength concrete, water surface closure is connected with water surface connecting end. The sleeve pipe for roof line pipe, roof and sleeve pipe sealing structure of the utility model have good sealing effect, and are not prone to water leakage.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically to a sleeve for overhead conduit in a roof slab, and a roof slab and sleeve sealing structure. Background Technology

[0002] In underground stations of rail transit projects or other underground reinforced concrete structures, secondary structures are generally constructed after the top slab is completed. During the implementation of secondary structures within the underground structure, the routing of construction power cables, construction communication cables, construction water pipes, and concrete pump pipes needs to be considered. Generally, staircases and passages reserved in the structural design are used as routing channels for the above-mentioned wetted pipes, but their routing also needs to be winding and tortuous. In some cases, the method of reserving wells in the top slab is adopted, but this will affect the overall top slab sealing period, and at the same time, it will become a weak point in waterproofing after sealing.

[0003] Existing methods also include pre-embedding sleeves on the top slab, such as the waterproof sleeve disclosed in Chinese patent application number 201710114716.8, which allows components such as cables and water pipes to pass through. However, this method has the following drawbacks: 1) It is difficult to guarantee the sealing performance of the pre-embedded sleeve after sealing. Generally, it is sealed by filling the sleeve with concrete, which has a poor sealing effect and is prone to leakage; 2) The sealing performance between the sleeve and the external concrete structure is not good. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a top plate conduit sleeve, top plate and sleeve sealing structure with good sealing effect and not easy to leak.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A sleeve for overhead conduit in a roof slab includes a sleeve body, a backwater-side cap, and a frontwater-side cap. The top of the outer wall of the sleeve body is provided with a frontwater-side water-stop ring, the middle is provided with a middle water-stop ring, and the bottom is provided with a backwater-side water-stop ring. The top end of the sleeve body extends from the upper side of the frontwater-side water-stop ring and is provided as a frontwater-side connection end for connecting with the frontwater-side cap. The bottom end of the sleeve body is provided as a backwater-side connection end for connecting with the backwater-side cap.

[0007] As a further improvement to the above technical solution:

[0008] The water-facing connecting end is provided with a water-facing external thread, the water-facing cover is provided with a water-facing internal thread for thread engagement with the water-facing external thread, and the water-facing cover is provided with a water-facing screw-fit part.

[0009] The backwater surface connecting end is provided with an internal thread, the backwater surface cover is provided with an external thread for threading with the internal thread, and the backwater surface cover is provided with a screw-fitting part.

[0010] The back-water side cover is provided with a back-water side water-expanding sealing pad for abutting against the inner side of the back-water side connection end, and the front-water side cover is provided with a front-water side water-expanding sealing pad for abutting against the end face of the front-water side connection end.

[0011] The backwater cover is provided with anchors for extending into the casing body.

[0012] The inner wall of the casing body is provided with multiple support parts arranged at intervals around the center.

[0013] A top plate, wherein the sleeve body of the aforementioned top plate conduit sleeve is pre-embedded in the top plate, the water-facing sealing ring abuts against the upper surface of the top plate, and the water-repellent sealing ring abuts against the lower surface of the top plate or is embedded in the lower surface of the top plate.

[0014] As a further improvement to the above technical solution:

[0015] The water-facing water-stop ring has an upper water-swellable water-stop pad between its lower surface and the top plate, the middle water-swellable water-stop ring has a middle water-swellable water-stop pad between its upper surface and the top plate, and the back water-stop ring has a lower water-swellable water-stop pad between its upper surface and the top plate.

[0016] A sleeve sealing structure on the top plate described above, wherein the backwater cover is connected to the backwater connection end, the sleeve body is filled with high-strength concrete, and the water-facing cover is connected to the water-facing connection end.

[0017] As a further improvement to the above technical solution:

[0018] The backwater cover is provided with anchors that extend into the casing body. The anchors are embedded in high-strength concrete. The inner wall of the casing body is provided with multiple support parts arranged at intervals around the center. Each support part is hooked with a steel cage, which is embedded in high-strength concrete.

[0019] Compared with the prior art, the advantages of this utility model are:

[0020] This utility model discloses a sleeve for overhead conduits. In use, the sleeve body is pre-embedded within the concrete of the overhead slab. The water-facing sealing ring abuts against the upper surface of the overhead slab, while the water-retaining ring abuts against or is embedded within the lower surface of the overhead slab. This allows construction cables, communication cables, water pipes, concrete pump pipes, and other conduits to pass through the internal space of the sleeve body for routing. After the conduits are arranged vertically, the water-retaining cap is first connected to the water-retaining connection end. Then, high-strength concrete is filled into the sleeve body, and finally, the water-facing cap is connected to the water-facing connection end, forming the sleeve sealing structure. The conduit sleeve used in this roof slab has two main advantages. First, the sleeve body can form a well-sealed structure through the backwater cover, high-strength concrete, and frontwater cover, ensuring the sealing performance of the subsequent sealing of the sleeve body and preventing leakage. Second, the sleeve body has three layers of water stoppers on the outside: a frontwater water-stop ring, a middle water-stop ring in the middle, and a backwater water-stop ring at the bottom, which improves the sealing performance.

[0021] The top plate of this utility model features a three-layer water-stop system: an external water-stop ring on the water-facing side, a middle water-stop ring in the middle, and a water-stop ring on the back side at the bottom, thus improving the sealing performance. Furthermore, subsequent sealing with a back-side cap, high-strength concrete, and a water-facing cap can further enhance the sealing of the casing body, ensuring a high level of airtightness and preventing leakage.

[0022] The casing sealing structure of this utility model has two aspects: First, the casing body forms a well-sealed sealing structure through the back-water-side cap, high-strength concrete, and front-water-side cap, ensuring the sealing performance of the casing body and making it less prone to leakage. Second, the casing body has three layers of water-stopping, including a front-water-side water-stop ring, a middle water-stop ring, and a back-water-side water-stop ring, which improves the sealing performance. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the sleeve for the conduit in the top plate of this utility model.

[0024] Figure 2 This is a schematic diagram of the sleeve body of the sleeve for the conduit in the top plate of this utility model.

[0025] Figure 3 This is a schematic diagram of the main cross-sectional structure of the backwater cover of the sleeve for the conduit in the top plate of this utility model.

[0026] Figure 4 This is a bottom view structural diagram of the backwater side cover of the sleeve for the conduit in the top plate of this utility model.

[0027] Figure 5This is a schematic diagram of the main cross-sectional structure of the water-facing side cover of the sleeve for the conduit in the top plate of this utility model.

[0028] Figure 6 This is a schematic diagram of the top plate of this utility model.

[0029] Figure 7 This is a schematic diagram of the sleeve sealing structure of this utility model.

[0030] The labels in the diagram represent:

[0031] 1. Sleeve body; 11. Water-facing sealing ring; 12. Intermediate sealing ring; 13. Water-retaining ring; 14. Water-facing connecting end; 141. Water-facing external thread; 15. Water-retaining connecting end; 151. Water-retaining internal thread; 16. Support part; 17. Upper water-swellable sealing pad; 18. Middle water-swellable sealing pad; 19. Lower water-swellable sealing pad; 2. Water-retaining cap; 21. Water-retaining water-swellable sealing pad; 22. Anchor; 23. Water-retaining screw-fit part; 24. Water-retaining external thread; 3. Water-facing cap; 31. Water-facing internal thread; 32. Water-retaining water-swellable sealing pad; 33. Water-retaining screw-fit part; 4. Reinforcing cage; 41. Hook part; 5. Top plate; 6. High-strength concrete. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 utility model 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, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Example 1:

[0037] Figures 1 to 5 This invention illustrates an embodiment of the overhead conduit sleeve for roof slabs. The overhead conduit sleeve of this embodiment includes a sleeve body 1, a backwater cover 2, and a frontwater cover 3. The top of the outer wall of the sleeve body 1 is provided with a frontwater water-stop ring 11, the middle is provided with a middle water-stop ring 12, and the bottom is provided with a backwater water-stop ring 13. The top end of the sleeve body 1 extends from the upper side of the frontwater water-stop ring 11 and is provided as a frontwater connection end 14 for connecting with the frontwater cover 3. The bottom end of the sleeve body 1 is provided as a backwater connection end 15 for connecting with the backwater cover 2.

[0038] In use, the sleeve body 1 of the conduit sleeve for the roof slab is pre-embedded in the concrete of the roof slab 5. The water-facing sealing ring 11 abuts against the upper surface of the roof slab 5, and the water-retaining ring 13 abuts against the lower surface of the roof slab 5 or is embedded in the lower surface of the roof slab 5. In this way, construction power cables, construction communication cables, construction water pipes, concrete pump pipes, and other conduits can pass through the internal space of the sleeve body 1 for routing. After the straight arrangement of each conduit is completed, the water-retaining cap 2 is first connected to the water-retaining connection end 15, then high-strength concrete 6 is filled into the sleeve body 1, and then the water-facing cap 3 is connected to the water-facing connection end 14 to form a sleeve sealing structure. The conduit sleeve used in this roof slab has the following advantages: First, the backwater cover 2, high-strength concrete 6, and frontwater cover 3 can form a well-sealed sealing structure for the sleeve body 1, ensuring the sealing performance of the subsequent sealing of the sleeve body 1, resulting in a good sealing effect and preventing water leakage. Second, the sleeve body 1 has three water-stopping rings: a frontwater water-stopping ring 11, a middle water-stopping ring 12, and a backwater water-stopping ring 13, which improves the sealing performance.

[0039] Furthermore, such as Figure 1 and Figure 2As shown, in this embodiment, the water-facing connecting end 14 is provided with a water-facing external thread 141, and the water-facing cap 3 is provided with a water-facing internal thread 31 for threaded engagement with the water-facing external thread 141. The water-facing cap 3 is also provided with a water-facing screw-fit part 33. On one hand, during subsequent sealing, the water-facing cap 3 is threadedly engaged with the water-facing external thread 141 of the water-facing connecting end 14 via the water-facing internal thread 31, facilitating connection. On the other hand, before the sleeve body 1 is sealed and before the conduit is threaded through, the water-facing cap 3 can be threadedly connected to the water-facing connecting end 14 to achieve a protective effect. The water-facing screw-fit part 33 is used for external screw-fit engagement, allowing the water-facing cap 3 to be screwed for installation and removal.

[0040] Furthermore, in this embodiment, the backwater surface connecting end 15 is provided with an internal backwater surface thread 151, and the backwater surface cap 2 is provided with an external backwater surface thread 24 for threaded engagement with the internal backwater surface thread 151. The backwater surface cap 2 is also provided with a backwater surface screw-fitting part 23. On the one hand, during subsequent sealing, the backwater surface cap 2 is threadedly engaged with the internal backwater surface thread 151 of the backwater surface connecting end 15 via the external backwater surface thread 24, facilitating connection. On the other hand, before the sleeve body 1 is sealed and before the conduit is threaded through, the backwater surface cap 2 can be threadedly connected to the backwater surface connecting end 15 to achieve a protective effect. The backwater surface screw-fitting part 23 is used for external screw-fitting, allowing the backwater surface cap 2 to be screwed for installation and removal.

[0041] Furthermore, in this embodiment, the back-side cover 2 is provided with a back-side water-swellable sealing pad 21 for abutting against the inner side of the back-side connection end 15, and the front-side cover 3 is provided with a front-side water-swellable sealing pad 32 for abutting against the end face of the front-side connection end 14. When the back-side cover 2 is tightened onto the back-side connection end 15, the back-side water-swellable sealing pad 21 abuts against the inner side of the back-side cover 2 and the back-side connection end 15, further improving the waterproof effect. When the front-side cover 3 is tightened onto the front-side connection end 14, the front-side water-swellable sealing pad 32 abuts against the end face of the front-side cover 3 and the front-side connection end 14, further improving the waterproof effect.

[0042] Furthermore, in this embodiment, the backwater cover 2 is provided with an anchor 22 for extending into the casing body 1. After the interior of the casing body 1 is subsequently sealed with high-strength concrete 6, the anchor 22 is anchored to the high-strength concrete 6, improving the overall connection strength and sealing performance.

[0043] Furthermore, in this embodiment, the inner wall of the casing body 1 is provided with a plurality of support portions 16 arranged at intervals around the center. When the support portions 16 are used to seal inside the casing body 1, a steel cage 4 is hung to further improve the strength and sealing performance of the subsequent sealing structure.

[0044] Example 2:

[0045] Figure 6 This illustration shows an embodiment of the top plate 5 of this utility model. In this embodiment, the top plate 5 pre-embeds the sleeve body 1 of the top plate conduit sleeve of Embodiment 1. The water-facing sealing ring 11 abuts against the upper surface of the top plate 5, and the water-retaining ring 13 abuts against the lower surface of the top plate 5 or is embedded within the lower surface of the top plate 5. The sleeve body 1 forms three water-stops: the water-facing sealing ring 11, the intermediate sealing ring 12 in the middle, and the water-retaining sealing ring 13 at the bottom, thus improving the sealing performance. Furthermore, the sleeve body 1 can be further sealed using the water-retaining cap 2, high-strength concrete 6, and the water-facing cap 3, ensuring a good seal and preventing leakage.

[0046] Furthermore, in this embodiment, an upper water-swellable water-stop pad 17 is provided between the lower surface of the water-facing water-stop ring 11 and the top plate 5; a middle water-swellable water-stop pad 18 is provided between the upper surface of the middle water-stop ring 12 and the top plate 5; and a lower water-swellable water-stop pad 19 is provided between the upper surface of the water-repellent water-stop ring 13 and the top plate 5. The water-stopping effect is further improved through the padding effect of the upper water-swellable water-stop pad 17, the middle water-swellable water-stop pad 18, and the lower water-swellable water-stop pad 19.

[0047] Example 3:

[0048] Figure 7 The illustration shows a sleeve sealing structure on the top plate 5 of Embodiment 2 of this utility model. In this embodiment, the backwater sealing cap 2 is connected to the backwater connection end 15, the sleeve body 1 is filled with high-strength concrete 6, and the frontwater sealing cap 3 is connected to the frontwater connection end 14. This sleeve sealing structure achieves two key benefits: First, the backwater sealing cap 2, the high-strength concrete 6, and the frontwater sealing cap 3 form a well-sealed sealing structure for the sleeve body 1, ensuring a good seal and preventing leakage. Second, the sleeve body 1 is further sealed by three layers of waterstops: a frontwater waterstop ring 11, a middle waterstop ring 12, and a backwater waterstop ring 13, improving the sealing performance.

[0049] Furthermore, in this embodiment, the backwater cover 2 is provided with anchors 22 extending into the casing body 1. The anchors 22 are embedded in high-strength concrete 6. The inner wall of the casing body 1 is provided with multiple support portions 16 arranged around the center, and a reinforcing cage 4 is hooked on each support portion 16. The reinforcing cage 4 is embedded in the high-strength concrete 6. The anchors 22 are anchored to the high-strength concrete 6, improving the overall connection strength and sealing performance. The reinforcing cage 4 is hung on each support portion 16 and embedded in the high-strength concrete 6, further improving the strength and sealing performance of the sealing structure. Preferably, the periphery of the reinforcing cage 4 is provided with multiple hook portions 41 arranged around the center, and each hook portion 41 is hooked on each support portion 16.

[0050] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A sleeve for cable conduit in a roof slab, characterized in that: The casing includes a casing body (1), a backwater cover (2), and a frontwater cover (3). The casing body (1) has a frontwater stop ring (11) at the top, a middle stop ring (12) in the middle, and a backwater stop ring (13) at the bottom. The top of the casing body (1) extends from the upper side of the frontwater stop ring (11) and is set as a frontwater connection end (14) for connecting with the frontwater cover (3). The bottom of the casing body (1) is set as a backwater connection end (15) for connecting with the backwater cover (2).

2. The sleeve for the conduit in the top plate according to claim 1, characterized in that: The water-facing connecting end (14) is provided with a water-facing external thread (141), the water-facing cover (3) is provided with a water-facing internal thread (31) for thread engagement with the water-facing external thread (141), and the water-facing cover (3) is provided with a water-facing screw-fit part (33).

3. The sleeve for overhead conduit in the top plate according to claim 1, characterized in that: The backwater surface connecting end (15) is provided with a backwater surface internal thread (151), the backwater surface cover (2) is provided with a backwater surface external thread (24) for thread engagement with the backwater surface internal thread (151), and the backwater surface cover (2) is provided with a backwater surface screw-fit part (23).

4. The sleeve for the conduit in the top plate according to claim 1, characterized in that: The back-water cover (2) is provided with a back-water surface water-swellable sealing pad (21) for abutting against the inner side of the back-water surface connection end (15), and the front-water cover (3) is provided with a front-water surface water-swellable sealing pad (32) for abutting against the end face of the front-water surface connection end (14).

5. The sleeve for the conduit in the top plate according to any one of claims 1 to 4, characterized in that: The backwater cover (2) is provided with anchors (22) for extending into the casing body (1).

6. The sleeve for the conduit in the top plate according to claim 5, characterized in that: The inner wall of the sleeve body (1) is provided with multiple support parts (16) arranged around the center.

7. A top plate (5), characterized in that: The top plate (5) is pre-embedded with the sleeve body (1) of the top plate conduit sleeve according to any one of claims 1 to 6, the water-facing sealing ring (11) abuts against the upper surface of the top plate (5), and the water-repellent sealing ring (13) abuts against the lower surface of the top plate (5) or is embedded in the lower surface of the top plate (5).

8. The top plate (5) according to claim 7, characterized in that: An upper water-swellable water-stop pad (17) is provided between the lower surface of the water-facing water-stop ring (11) and the top plate (5), a middle water-swellable water-stop pad (18) is provided between the upper surface of the middle water-stop ring (12) and the top plate (5), and a lower water-swellable water-stop pad (19) is provided between the upper surface of the back water-stop ring (13) and the top plate (5).

9. A sleeve sealing structure on the top plate (5) as described in claim 7 or 8, characterized in that: The backwater cover (2) is connected to the backwater connection end (15), the sleeve body (1) is filled with high-strength concrete (6), and the frontwater cover (3) is connected to the frontwater connection end (14).

10. The sleeve plugging structure according to claim 9, characterized in that: The backwater cover (2) is provided with an anchor (22) that extends into the casing body (1). The anchor (22) is embedded in high-strength concrete (6). The inner wall of the casing body (1) is provided with multiple hanging parts (16) arranged around the center. Each hanging part (16) is hooked with a steel cage (4). The steel cage (4) is embedded in high-strength concrete (6).

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