A device for discharging water from inside a hollow slab beam

Abstract

The present invention discloses an internal water discharge device for hollow slab beams, comprising an outer cylinder, a rubber soft shell is arranged at the top end of the outer cylinder, the inner cavity of the rubber soft shell is connected with the inside of the outer cylinder; a rotating sealing plate is arranged at the bottom end of the outer cylinder; a plurality of drainage holes are arranged on the upper part of the rubber soft shell along the circumferential direction; a plurality of water outlet holes that can be connected with the inside of the outer cylinder are arranged on the rotating sealing plate; a lifting and telescopic assembly that can make the rubber soft shell contract to pass through the bottom plate opening on the hollow slab beam and make the rubber soft shell open to seal the top of the bottom plate opening is arranged on the rotating sealing plate. When the present invention is used, the accumulated water in the inner hole of the hollow slab beam is discharged along the drainage hole, the inner cavity of the rubber soft shell, the inside of the outer cylinder, and the water outlet hole; in the process of discharging the internal accumulated water, since the rubber soft shell is opened and sealed and pressed against the top of the bottom plate opening, the accumulated water in the inner hole of the hollow slab beam will not flow out along the annular space between the bottom plate opening and the outer cylinder, thereby preventing the accumulated water from overflowing to the bottom plate of the slab beam.

Description

Technical Field

[0001] The invention belongs to the technical field of building engineering, and particularly relates to an internal water discharge device for a hollow slab beam. Background Art

[0002] From the 1970s and 1980s to the beginning of this century, prestressed hollow slab beams were widely used in small and medium span bridges in highway engineering. Figure 1 As shown. During the construction of the bridge, due to the constraints of backward construction technology and low management level, the airbag inner mold used floated significantly, resulting in the top plate thickness being significantly less than the design value; during the operation of the bridge, the thin top plate is prone to damage. Once the bridge deck waterproof layer fails, rainwater or snow water, ice-melted water (sometimes containing deicing salt) on the bridge deck will flow into the hollow slab beam. The two ends of the hollow slab beam are mostly blocked with brickwork or cast-in-place concrete. The rainwater entering the hollow slab beam cannot flow out smoothly. Under negative temperature conditions in winter, the accumulated water freezes and expands, which can easily cause longitudinal cracks, water seepage, whitening and other problems in the bottom plate, seriously affecting the durability of the bridge structure.

[0003] In order to solve the problem of longitudinal seams and water seepage in the bottom plate of the slab beam caused by water accumulation in the hollow slab beam, a hole is usually opened in the bottom plate of the slab beam to drain the water, and sometimes a PVC pipe needs to be inserted into the hole. However, whether the pipe is inserted or not, it is difficult to ensure that the water in the slab beam will not flow out from the outer wall of the pipe and overflow to the bottom plate of the slab beam, thereby causing the concrete of the bottom plate of the slab beam to suffer from freeze-thaw cycles, and even the presence of deicing salt in the accumulated water will seriously weaken the durability and applicability of the hollow slab beam.

[0004] Therefore, there is an urgent need to design a device for discharging internal water for hollow slab beams, which can replace the existing PVC pipes. On the one hand, it can discharge the internal water of the hollow slab beams, and on the other hand, it can prevent the internal water of the slab beams from flowing out from the outer wall of the pipe, thereby preventing the accumulated water from overflowing to the bottom plate of the slab beams. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a device for discharging internal water accumulation for a hollow slab beam.

[0006] To achieve the above object, the present invention adopts the following technical solution:

[0007] A device for discharging internal water accumulation for a hollow slab beam comprises an outer cylinder, a rubber soft shell is arranged at the top end of the outer cylinder, and the inner cavity of the rubber soft shell is connected with the inside of the outer cylinder; a rotating sealing plate is arranged at the bottom end of the outer cylinder;

[0008] A plurality of drainage holes are arranged on the upper part of the rubber soft shell along the circumferential direction;

[0009] The rotating sealing plate is provided with a plurality of water outlet holes which can be communicated with the interior of the outer cylinder;

[0010] The rotary sealing plate is provided with a lifting and telescopic assembly which can shrink the rubber soft shell to pass through the bottom plate opening on the hollow plate beam and expand the rubber soft shell to seal the top of the bottom plate opening.

[0011] Preferably, the rubber soft shell is a shell structure with openings at the top and bottom ends.

[0012] Preferably, the bottom opening of the rubber soft shell is sealed and pressed against the top outer wall surface of the outer cylinder.

[0013] Preferably, a plurality of support frames are evenly arranged in the inner cavity of the rubber soft shell along the circumferential direction, and the upper and lower ends of the support frames are fixedly connected to the inner wall of the rubber soft shell.

[0014] Preferably, a rubber card body is arranged inside the bottom opening of the rubber soft shell, and a card slot is arranged at the end of the rubber card body;

[0015] The top end of the outer cylinder is inserted into the slot;

[0016] The lower end of the support frame is fixedly connected to the rubber card body.

[0017] Preferably, the lifting and telescopic assembly comprises a connecting rod located inside the outer cylinder, the lower outer end of the connecting rod is provided with an external thread, and the lower part of the connecting rod is threadedly connected to the rotating sealing plate;

[0018] The top end of the connecting rod is fixedly connected to the connecting block;

[0019] A plurality of support rods are arranged on the side surface of the connection block along the circumferential direction, one end of the support rod is hingedly connected to the connection block; the other end of the support rod is hingedly connected to the middle part of the corresponding support frame.

[0020] Preferably, the outer diameter of the outer cylinder is smaller than the diameter of the bottom plate opening on the hollow slab beam.

[0021] Preferably, the rotating sealing plate is a cylindrical structure;

[0022] The connecting rod, the outer cylinder and the rotating sealing plate are coaxially arranged.

[0023] Preferably, the diameter of the rotating sealing plate is larger than the diameter of the bottom plate opening on the hollow slab beam.

[0024] Preferably, the bottom end of the outer cylinder is rotatably connected to a rotating sealing plate.

[0025] The beneficial effects of the present invention are:

[0026] (1) When the internal water discharge device for the hollow slab beam of the present invention is used, the accumulated water in the inner hole of the hollow slab beam is discharged along the drainage hole, the inner cavity of the rubber soft shell, the inside of the outer tube, and the water outlet hole; in the process of discharging the internal water, since the rubber soft shell is opened and sealed and pressed against the top of the bottom plate opening, the accumulated water in the inner hole of the hollow slab beam will not flow out along the annular space between the bottom plate opening and the outer tube, thereby preventing the accumulated water from overflowing to the bottom plate of the slab beam.

[0027] (2) The arrangement of the lifting and telescopic components in the device for discharging accumulated water from the hollow slab beam of the present invention can realize the contraction and expansion of the rubber soft shell, and further realize the installation, sealing, pressing and recovery of the entire device. That is, it is convenient to install it in the hole wall of the hollow slab beam to discharge the accumulated water. After the accumulated water is discharged, it is convenient to take out the entire device for reuse, and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings in the specification, which constitute a part of the present application, are used to provide further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0029] Figure 1 It is a structural schematic diagram of a hollow slab beam in the background technology;

[0030] Figure 2 It is a schematic structural diagram of the internal water discharge device for hollow slab beams of the present invention;

[0031] Figure 3 It is a schematic structural diagram of the present invention when the rubber soft shell of the internal water discharge device for hollow slab beam is opened;

[0032] Figure 4 It is a schematic diagram of the structure of the rubber soft shell of the internal water discharge device for hollow slab beams of the present invention when it shrinks;

[0033] in,

[0034] 0-hollow slab beam, 01-bottom plate opening;

[0035] 1-rotating sealing plate, 101-water outlet, 2-outer cylinder, 3-connecting rod, 4-rubber soft shell, 401-drain hole, 402-rubber card body, 5-support frame, 6-support rod, 7-connecting block. DETAILED DESCRIPTION

[0036] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0037] 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 the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] In the present invention, the directions or positional relationships indicated by terms such as "upper", "lower", "bottom", "top", etc. are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention. They do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

[0039] In the present invention, terms such as "connected" and "connection" should be understood in a broad sense, indicating that the connection can be fixed, integral or detachable; it can be directly connected or indirectly connected through an intermediate medium. Relevant scientific research or technical personnel in this field can determine the specific meaning of the above terms in the present invention according to specific circumstances, and they should not be understood as limiting the present invention.

[0040] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0041] like Figure 2-4 As shown, a device for discharging internal water accumulation for a hollow slab beam comprises an outer tube 2, a rubber soft shell 4 is arranged at the top end of the outer tube 2, and the inner cavity of the rubber soft shell 4 is connected to the inside of the outer tube 2; a rotating sealing plate 1 is arranged at the bottom end of the outer tube 1;

[0042] The upper part of the rubber soft shell 4 is provided with a plurality of drainage holes 401 along the circumferential direction;

[0043] The rotary sealing plate 1 is provided with a plurality of water outlet holes 101 which can communicate with the interior of the outer cylinder 2;

[0044] The rotary sealing plate 1 is provided with a lifting and telescopic assembly which can shrink the rubber soft shell 4 to pass through the bottom plate opening 01 on the hollow plate beam 0 and expand the rubber soft shell 4 to seal the top of the bottom plate opening 01 .

[0045] Preferably, the rubber soft shell 4 is a shell structure with openings at the top and bottom.

[0046] Preferably, the bottom opening of the rubber soft shell 4 is sealed and pressed against the top outer wall surface of the outer cylinder 2 .

[0047] Preferably, a plurality of support frames 5 are evenly arranged in the inner cavity of the rubber soft shell 4 along the circumferential direction, and the upper and lower ends of the support frames 5 are fixedly connected to the inner wall of the rubber soft shell 4 .

[0048] Preferably, a rubber card body 402 is arranged inside the bottom opening of the rubber soft shell 4, and a card slot is arranged at the end of the rubber card body 402;

[0049] The top end of the outer tube 2 is inserted into the slot;

[0050] The lower end of the support frame 5 is fixedly connected to the rubber card body 402 .

[0051] Preferably, the lifting and telescopic assembly includes a connecting rod 3 located inside the outer tube 2, the lower outer end of the connecting rod 3 is provided with an external thread, and the lower part of the connecting rod 3 is threadedly connected with the rotating sealing plate 1; specifically, the length range of the lower threaded section of the connecting rod 3 meets the telescopic range requirements of the rubber soft shell 4;

[0052] The top end of the connecting rod 3 is fixedly connected to the connecting block 7;

[0053] A plurality of support rods 6 are arranged on the side surface of the connection block 7 along the circumferential direction, one end of each support rod 6 is hingedly connected to the connection block 7 ; the other end of each support rod 6 is hingedly connected to the middle portion of the corresponding support frame 5 .

[0054] The hinge axes at both ends of the same support rod 6 are parallel, and the central axes of the hinge axes at both ends of the support rod 6 are perpendicular to and skew with the central axis of the connecting rod 3 .

[0055] Preferably, the outer diameter of the outer tube 2 is smaller than the diameter of the bottom plate opening 01 on the hollow plate beam 0 .

[0056] Preferably, the rotary sealing plate 1 is a cylindrical structure;

[0057] The connecting rod 3, the outer cylinder 2, and the rotating sealing plate 1 are coaxially arranged.

[0058] Preferably, the diameter of the rotating sealing plate 1 is larger than the diameter of the bottom plate opening 01 on the hollow slab beam 0 .

[0059] Preferably, the bottom end of the outer cylinder 2 is rotatably connected to the rotary sealing plate 1 .

[0060] Rotate the rotary sealing plate 1. Since the bottom of the outer cylinder 2 is rotatably connected to the rotary sealing plate 1, the outer cylinder 2 does not rotate with the rotary sealing plate 1. When the rotary sealing plate 1 rotates, the connecting rod 3 can be lifted up and down. Figure 2In the process shown in FIG. 7 , the connecting block 7 pulls the support rod 6, and the support rod 6 pulls the support frame 5. Since the lower end of the support frame 5 is fixed on the rubber card body 402, and the card slot of the rubber card body 402 is stuck on the top of the outer tube 2, the support rod 6 pulls the support frame 5, so that the upper part of each support frame 5 shrinks inward, thereby driving the rubber soft shell 4 to shrink. Similarly, when the connecting rod 3 is Figure 2 When the position shown in FIG. 1 drops, the upper part of each support frame 5 will open outward, thereby driving the rubber soft shell to open.

[0061] A device for discharging accumulated water inside a hollow slab beam, the specific implementation of which is as follows:

[0062] First, rotate the rotary sealing plate 1 to move the connecting rod 3 upward so that the support frame 5 drives the rubber soft shell 4 to be in a contracted state, and then insert the device of the present application from the bottom of the bottom plate opening 01 into the inner hole of the hollow plate beam 0, as shown in FIG. Figure 4 Then reversely rotate the rotary sealing plate 1, so that the connecting rod moves downward so that the support frame 5 drives the rubber soft shell 4 in an open state, so that the outer wall surface of the rubber soft shell 4 is sealed and pressed against the top of the bottom plate opening 01, as shown Figure 3 shown.

[0063] Then the accumulated water in the inner hole of the hollow slab beam 0 is discharged along the drainage hole 401, the inner cavity of the rubber soft shell 4, the inside of the outer tube 2, and the water outlet hole 101. In the process of discharging the internal accumulated water, since the rubber soft shell 4 is opened and sealed and pressed against the top of the bottom plate opening 01, the accumulated water in the inner hole of the hollow slab beam 0 will not flow out along the annular space between the bottom opening 01 and the outer tube 2, thereby preventing the accumulated water from overflowing to the bottom plate of the slab beam.

[0064] After the accumulated water in the hollow slab beam 0 is drained, the rotary sealing plate 1 is rotated to shrink the rubber soft shell 4, and the device of the present application is pulled out from the bottom plate opening 01 of the hollow slab beam 0, completing the recovery of the entire device for reuse.

[0065] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not a limitation of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the protection scope of the present invention.

Claims

1. A device for discharging water from a hollow slab beam, characterized in that: It comprises an outer cylinder, a rubber soft shell is arranged at the top end of the outer cylinder, and the inner cavity of the rubber soft shell is connected with the inside of the outer cylinder; a rotating sealing plate is arranged at the bottom end of the outer cylinder; A plurality of drainage holes are arranged on the upper part of the rubber soft shell along the circumferential direction; The rotating sealing plate is provided with a plurality of water outlet holes which can be communicated with the interior of the outer cylinder; The rotary sealing plate is provided with a lifting and telescopic assembly capable of causing the rubber soft shell to contract to pass through the bottom plate opening on the hollow plate beam, and causing the rubber soft shell to expand to seal the top of the bottom plate opening; The rubber soft shell is a shell structure with openings at the top and bottom ends; The bottom opening of the rubber soft shell is sealed and pressed against the top outer wall surface of the outer cylinder; A plurality of support frames are evenly arranged in the inner cavity of the rubber soft shell along the circumferential direction, and the upper and lower ends of the support frames are fixedly connected to the inner wall of the rubber soft shell; A rubber card body is arranged inside the bottom opening of the rubber soft shell, and a card slot is arranged at the end of the rubber card body; the top end of the outer cylinder is inserted into the card slot; the lower end of the support frame is fixedly connected to the rubber card body; The lifting and telescopic assembly includes a connecting rod located inside the outer cylinder, an outer thread is arranged at the lower outer end of the connecting rod, and the lower part of the connecting rod is threadedly connected to the rotating sealing plate; the top end of the connecting rod is fixedly connected to the connecting block; a plurality of support rods are arranged on the side of the connecting block along the circumferential direction, one end of the support rod is hingedly connected to the connecting block; the other end of the support rod is hingedly connected to the middle part of the corresponding support frame; The bottom end of the outer cylinder is rotatably connected to the rotary sealing plate.

2. The device for discharging water from a hollow slab beam as claimed in claim 1, characterized in that: The outer diameter of the outer cylinder is smaller than the diameter of the bottom plate opening on the hollow plate beam.

3. The device for discharging accumulated water inside a hollow slab beam as claimed in claim 2, characterized in that: The rotating sealing plate is in a cylindrical structure; The connecting rod, the outer cylinder and the rotating sealing plate are coaxially arranged.

4. The device for discharging accumulated water inside a hollow slab beam as claimed in claim 3, characterized in that: The diameter of the rotating sealing plate is larger than the diameter of the bottom plate opening on the hollow slab beam.

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