Tunnel waterproof pipe curtain device

Abstract

The utility model discloses a tunnel waterproof pipe curtain device, which relates to the field of tunnel engineering, and comprises an occlusion steel pipe, a wave-shaped ring frame, a wave-shaped air bag and a sealing assembly, an annular water stop groove is formed in the inner wall of the waveform ring frame in the circumferential direction of the waveform ring frame. The waveform ring frame comprises a central ring frame and two auxiliary frames which are respectively arranged on two opposite sides of the central ring frame, and the central ring frame is respectively communicated with the two auxiliary frames; wherein the central steel pipe is correspondingly sleeved with the central ring frame, and the two side steel pipes are correspondingly sleeved with the two auxiliary frames respectively; the wave-shaped air bag is arranged in the water stop groove; the sealing assembly is arranged at the opening end of the wave-shaped ring frame. According to the utility model, the technical problem of external water seepage in a pipe-roofing construction method is solved, the gap between pipe-roofing systems is sealed, external water seepage is prevented, and the anti-seepage capability of the pipe-roofing systems is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel engineering, in particular to a tunnel waterproof pipe curtain device structure. Background Art

[0002] With the development of tunnel construction technology, my country currently mainly uses the pipe curtain method for tunnel construction. However, during the pipe jacking construction process, water from the outside often seeps into the pipe curtain structure, causing dangerous events such as water gushing and mud bursting in the strata of the construction area. At present, the sealing performance of the tunnel waterproof pipe curtain device in the pipe curtain method construction is poor, and it often cannot well seal the gaps generated during the pipe curtain construction, resulting in poor anti-seepage ability of the tunnel waterproof pipe curtain device, which cannot meet actual needs. Utility Model Content

[0003] The main purpose of the utility model is to provide a tunnel waterproof pipe curtain device, which aims to solve the technical problem that the existing tunnel waterproof pipe curtain device in the pipe curtain method construction has poor sealing performance and often cannot well seal the gaps generated in the pipe curtain construction, resulting in poor anti-seepage ability of the tunnel waterproof pipe curtain device and cannot meet actual needs.

[0004] In order to achieve the above-mentioned purpose, the utility model proposes a tunnel waterproof pipe curtain device, and the tunnel waterproof pipe curtain device comprises:

[0005] An interlocking steel pipe, the interlocking steel pipe comprising a central steel pipe and two side steel pipes respectively installed on opposite sides of the central steel pipe, and the central steel pipe is respectively connected to the two side steel pipes;

[0006] A corrugated ring frame, the corrugated ring frame can be slidably sleeved outside the interlocking steel pipe and a sliding gap is formed between the corrugated ring frame and the interlocking steel pipe, and an annular water stop groove is arranged on the inner wall of the corrugated ring frame along its circumference; the corrugated ring frame comprises a central ring frame and sub-frames respectively installed on opposite sides of the central ring frame, and the central ring frame and the sub-frames are connected to each other; wherein the central ring frame is correspondingly sleeved outside the central steel pipe, and the sub-frame is sleeved outside the side steel pipe; the central ring frame comprises a detachable ring frame, and the detachable ring frame is arranged at the junction of the central ring frame and the sub-frame;

[0007] A corrugated airbag, the corrugated airbag is arranged in the water stop groove, and the corrugated airbag is connected to an external air source through an air inlet pipe;

[0008] A sealing component is arranged at the open end of the corrugated ring frame and seals the sliding gap.

[0009] Optionally, the head end and the tail end of the corrugated airbag are connected to form an annular closed structure, and the corrugated airbag is sleeved on the outside of the interlocking steel pipe.

[0010] Optionally, a ventilation pipe is pre-buried in the water stop groove, the head end of the corrugated airbag is connected to one end of the ventilation pipe, and the tail end of the corrugated airbag is connected to the other end of the ventilation pipe.

[0011] Optionally, an elastic cover plate is installed at the notch of the water stop groove, and the elastic cover plate and the water stop groove are combined to form a containing chamber, and the corrugated airbag is accommodated in the containing chamber.

[0012] Optionally, the elastic cover plate completely covers the notch of the water stop groove, and the two sides of the elastic cover plate are respectively a fixed side and a free side, the fixed side is fixed to the inner wall of the corrugated ring frame close to the sealing assembly, and the free side extends in a direction away from the fixed side and overlaps the inner wall of the corrugated ring frame.

[0013] Optionally, the elastic cover plate is an elastic steel plate.

[0014] Optionally, the air intake pipe is pre-buried in the corrugated ring frame, one end of the air intake pipe is connected to the corrugated airbag, and the other end extends to the outside of the corrugated ring frame and is used to be connected to the external air source.

[0015] Optionally, the sealing assembly includes a plurality of sealing structures, and the plurality of sealing structures are sequentially connected along the circumference of the corrugated ring frame to form the sealing assembly.

[0016] Optionally, each of the sealing structures comprises a cord rubber plate and a flap plate, the cord rubber plate and the flap plate are both mounted on the open end of the corrugated ring frame, and the cord rubber plate is located between the flap plate and the open end of the corrugated ring frame.

[0017] Optionally, two ends of the cord rubber sheet are respectively a mounting end and a free end, the mounting end is mounted on the opening end of the corrugated ring frame, and the free end is a transition fillet structure.

[0018] Optionally, the detachable ring frame is connected to the central ring frame by connecting bolts.

[0019] The above one or more technical solutions provided by the present utility model may have the following advantages or at least achieve the following technical effects:

[0020] The utility model proposes a tunnel waterproof pipe curtain device, which is achieved by installing a sub-frame on both sides of a central ring frame, the sub-frame and the central ring frame are connected at the installation position, the central ring frame is sleeved on the outside of the central steel pipe, the sub-frames are sleeved on the outside of the side steel pipes respectively, and the side steel pipes and the central steel pipe have sliding gaps with the sub-frame and the central ring frame respectively. The inner wall of the corrugated ring frame is provided with an annular water stop groove along its circumference, and a corrugated airbag is provided in the water stop groove. The corrugated airbag is connected to an external air source through an air inlet pipe. After the corrugated airbag is inflated, it fills the water stop groove and is in close contact with the interlocking steel pipe, so that the sliding gap is closed, which can effectively prevent external water from penetrating into the pipe curtain. A sealing component is installed at the open end of the corrugated ring frame. When the interlocking steel pipe is pushed into the corrugated ring frame, the sealing component seals the sliding gap again at the front end of the corrugated airbag to prevent external water from penetrating into the pipe curtain. The sealing performance is good, the sealing reliability is high, and the anti-seepage ability of the tunnel waterproof pipe curtain device is improved to meet actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 It is a cross-sectional schematic diagram of the opening of the corrugated ring frame in the tunnel waterproof pipe curtain device involved in one embodiment of the utility model;

[0023] Figure 2 It is a front view schematic diagram of a corrugated ring frame in a tunnel waterproof pipe curtain device involved in an embodiment of the utility model;

[0024] Figure 3 It is a structural schematic diagram of a tunnel waterproof pipe curtain device involved in one embodiment of the utility model.

[0025] Description of Figure Numbers:

[0026]

[0027]

[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0033] The utility model proposes a tunnel waterproof pipe curtain device, which includes an interlocking steel pipe 10, a corrugated ring frame 20, a corrugated airbag 30 and a sealing assembly 50; wherein the interlocking steel pipe includes a central steel pipe and two side steel pipes respectively installed on opposite sides of the central steel pipe, and the central steel pipe is respectively communicated with the two side steel pipes; the corrugated ring frame is slidably sleeved outside the interlocking steel pipe, and a sliding gap is formed between the corrugated ring frame and the interlocking steel pipe, and an annular water stop groove is arranged on the inner wall of the corrugated ring frame along its circumference; the corrugated ring frame includes a central ring frame and sub-frames respectively installed on opposite sides of the central ring frame, and the central ring frame and the sub-frame are communicated with each other; wherein the central ring frame is correspondingly sleeved outside the central steel pipe, and the sub-frame is sleeved outside the side steel pipe; the central ring frame includes a detachable ring frame, and the detachable ring frame is arranged at the junction of the central ring frame and the sub-frame; the corrugated airbag is arranged in the water stop groove, and the corrugated airbag is communicated with an external air source through an air inlet pipe; the sealing assembly is arranged at the opening end of the corrugated ring frame, and the sliding gap is sealed.

[0034] Specifically, Figure 3 As shown, the interlocking steel pipe 10 includes a central steel pipe 11 and two side steel pipes 12. The two side steel pipes 12 are respectively installed on both sides of the central steel pipe 11, and the two side steel pipes 12 and the central steel pipe 11 are connected at the installation position. The interlocking steel pipe 10 is provided with a corrugated ring frame 20. The corrugated ring frame 20 includes a central ring frame 21 and two sub-frames 22. The two sub-frames 22 are respectively installed on both sides of the central ring frame 21. The two sub-frames 22 and the central ring frame 21 are connected at the junction. The central ring frame 21 is sleeved on the outside of the central steel pipe 11, and the two sub-frames 22 are respectively sleeved on the outside of the two side steel pipes 12, so that the corrugated ring frame 20 is sleeved on the outside of the interlocking steel pipe 10, between the two side steel pipes 12 and the two sub-frames 22; and there is a sliding gap between the central steel pipe 11 and the central ring frame 21. The inner wall of the corrugated ring frame 20 is provided with an annular water stop groove 70 along its circumference, and a corrugated airbag 30 is provided in the water stop groove 70. The corrugated airbag 30 is connected to an external air source through an air inlet pipe 40. After the corrugated airbag 30 is inflated, it fills the water stop groove 70 and is tightly wrapped around the outer side of the interlocking steel pipe 10, so that the sliding gaps between the two side steel pipes 12 and the two sub-frames 22; and between the central steel pipe 11 and the central ring frame 21 are all sealed, which can effectively prevent the external water from penetrating into the pipe curtain. The opening end 20a of the corrugated ring frame 20 is installed with a sealing component 50. In the process of the interlocking steel pipe 10 being pushed into the corrugated ring frame 20, the sealing component 50 is in close contact with the interlocking steel pipe 10. The sealing component 50 seals the sliding gap again at the front end of the corrugated airbag 30 to prevent the external water from penetrating into the pipe curtain. The sealing performance is good, the sealing reliability is high, and the anti-seepage ability of the tunnel waterproof pipe curtain device is improved to meet the actual needs.

[0035] In one embodiment, the head end and the tail end of the corrugated airbag 30 are connected to form an annular closed structure, and the corrugated airbag 30 is sleeved on the outer side of the bite steel pipe 10 .

[0036] Specifically, the corrugated airbag 30 is a long strip structure arranged in the water stop groove 70. The head end and the tail end of the corrugated airbag 30 are connected to form an annular closed structure. The corrugated airbag 30 is sleeved on the outside of the interlocking steel pipe 10. After the corrugated airbag 30 is inflated, the corrugated airbag 30 is wrapped and arranged on the outside of the interlocking steel pipe 10, and is in close contact with the interlocking steel pipe 10. The corrugated airbag 30 with an annular structure can more comprehensively block external water from infiltrating into the pipe curtain, further improving the anti-seepage ability of the pipe curtain.

[0037] In one embodiment, a vent pipe is pre-buried in the water stop groove 70 , the head end of the corrugated airbag 30 is connected to one end of the vent pipe, and the tail end of the corrugated airbag 30 is connected to the other end of the vent pipe.

[0038] Specifically, a vent pipe is pre-installed in the water stop groove 70, and the corrugated airbag 30 is bent so that the head end of the corrugated airbag 30 is connected to one end of the vent pipe, and the tail end of the corrugated airbag 30 is connected to the other end of the vent pipe to form an annular closed structure. The airflow flows through the vent pipe in the corrugated airbag 30, so that the corrugated airbag 30 is inflated and tightly wrapped around the occlusal steel pipe 10. By pre-burying the vent pipe in the water stop groove 70 and using the vent pipe to realize the annular arrangement of the corrugated airbag 30, the structural design is reasonable and ingenious, and it is easy to install, and the construction difficulty is lower.

[0039] In one embodiment, an elastic cover plate 60 is installed at the notch of the water stop groove 70 , and the elastic cover plate 60 and the water stop groove 70 are enclosed to form a receiving chamber 70 a , and the corrugated airbag 30 is received in the receiving chamber 70 a .

[0040] Furthermore, if Figure 1 As shown, an elastic cover plate 60 is installed at the notch of the water stop groove 70, and the elastic cover plate 60 and the water stop groove 70 are enclosed to form a storage bin 70a. The corrugated airbag 30 is inflated to push up the elastic cover plate 60 at the notch of the water stop groove 70, and the elastic cover plate 60 is in close contact with the bite steel pipe 10 to close the sliding gap. The elastic cover plate 60 separates the corrugated airbag 30 from the bite steel pipe 10, so that the corrugated airbag 30 is protected and is not easily damaged during the process of pushing the bite steel pipe 10, thereby improving the durability of the tunnel waterproof pipe curtain device.

[0041] In one embodiment, the elastic cover plate 60 completely covers the notch of the water stop groove 70, and the two sides of the elastic cover plate 60 are respectively a fixed side and a free side. The fixed side is fixed to the inner wall of the corrugated ring frame 20 close to the sealing assembly 50, and the free side extends in a direction away from the fixed side and overlaps the inner wall of the corrugated ring frame 20.

[0042] Furthermore, if Figure 1As shown, the elastic cover plate 60 completely covers the notch of the water stop groove 70, and the two sides of the elastic cover plate 60 are respectively a fixed side and a free side. The corrugated airbag 30 in the accommodating chamber 70a is inflated so that the free side is pushed up. During the process of the interlocking steel pipe 10 being pushed in, the free side abuts against the tube wall of the interlocking steel pipe 10, so that the sliding gap between the corrugated ring frame 20 and the interlocking steel pipe 10 is sealed. This structure realizes sliding gap sealing while protecting the airbag, has good sealing effect, and has a reasonable and ingenious structural design.

[0043] In one embodiment, the elastic cover plate 60 is an elastic steel plate 60a, which is easier to obtain and more durable.

[0044] In one embodiment, if Figure 1 As shown, the air intake pipe 40 is pre-buried in the corrugated ring frame 20 , one end of the air intake pipe 40 is connected to the corrugated airbag 30 , and the other end extends to the outside of the corrugated ring frame 20 and is used to be connected to an external air source.

[0045] Specifically, when the corrugated ring frame 20 is manufactured, an air inlet pipe 40 is pre-buried in the corrugated ring frame 20, one end of the air inlet pipe 40 extends into the water stop groove 70 and is connected to the corrugated airbag 30, and the other end extends to the outside of the corrugated ring frame 20 and is used to be connected to an external air source. The external air source inflates the corrugated airbag 30 through the air inlet pipe 40 to expand the corrugated airbag 30. By pre-buried air inlet pipe 40, the corrugated airbag 30 can be inflated more conveniently.

[0046] In one embodiment, the sealing assembly 50 includes a plurality of sealing structures 51 , and the plurality of sealing structures 51 are sequentially connected along the circumference of the corrugated ring frame 20 to form the sealing assembly 50 .

[0047] Specifically, Figure 1 As shown, multiple sealing structures 51 are installed in sequence at the open end 20a of the corrugated ring frame 20 along the circumferential direction of the outer contour line of the corrugated ring frame 20, and because the sliding gap between the interlocking steel pipe 10 and the corrugated ring frame 20 is annular, multiple sealing structures 51 are installed in sequence at the open end 20a of the corrugated ring frame 20 around the circumference of the corrugated ring frame 20, so that the sliding gap between the interlocking steel pipe 10 and the corrugated ring frame 20 can be more completely closed, the sealing effect is better, and the anti-seepage ability of the pipe curtain is further improved.

[0048] In one embodiment, each sealing structure 51 includes a cord rubber plate 511 and a flap plate 512 , both of which are installed at the opening end 20 a of the corrugated ring frame 20 , and the cord rubber plate 511 is located between the flap plate 512 and the opening end 20 a of the corrugated ring frame 20 .

[0049] Specifically, Figure 1As shown, a flap plate 512 is installed at the open end 20a of the corrugated ring frame 20, and the flap plate 512 can be flipped along the direction of the insertion of the interlocking steel pipe 10. The curtain rubber plate 511 is installed between the flap plate 512 and the open end 20a of the corrugated ring frame 20. During the insertion of the interlocking steel pipe 10, the interlocking steel pipe 10 drives the flap plate 512 and the curtain rubber plate 511 to bend in the direction of the insertion of the interlocking steel pipe 10. The flap plate 512 and the curtain rubber plate 511 are in close contact with the interlocking steel pipe 10, respectively, so that the sliding gap between the interlocking steel pipe 10 and the corrugated ring frame 20 is sealed. The flap plate 512 and the curtain rubber plate 511 are used to double seal the sliding gap, which has a better sealing effect and higher sealing reliability, so that the pipe curtain has better anti-seepage ability.

[0050] In one embodiment, two ends of the cord rubber plate 511 are a mounting end 5111 and a free end 5112 , respectively. The mounting end 5111 is mounted on the opening end 20 a of the corrugated ring frame 20 , and the free end 5112 is a transition fillet structure.

[0051] Furthermore, if Figure 1 As shown, the free end 5112 is a transition fillet structure, which can seal the sliding gap between the interlocking steel pipe 10 and the corrugated ring frame 20 more densely. The free end 5112 of the curtain rubber plate 511 is a transition fillet structure, which has higher sealing reliability and makes the pipe curtain have better anti-seepage ability.

[0052] In one embodiment, the detachable ring frame 23 is connected to the central ring frame 21 via connecting bolts. It can be understood that the detachable ring frame 23 is connected to the central ring frame 21 via connecting bolts, which is convenient for disassembly and assembly and easy for construction.

[0053] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A tunnel waterproof pipe curtain device, characterized in that: The tunnel waterproof pipe curtain device comprises: An interlocking steel pipe, the interlocking steel pipe comprising a central steel pipe and two side steel pipes respectively installed on opposite sides of the central steel pipe, and the central steel pipe is respectively connected to the two side steel pipes; A corrugated ring frame, the corrugated ring frame can be slidably sleeved outside the interlocking steel pipe and a sliding gap is formed between the corrugated ring frame and the interlocking steel pipe, and an annular water stop groove is arranged on the inner wall of the corrugated ring frame along its circumference; the corrugated ring frame comprises a central ring frame and sub-frames respectively installed on opposite sides of the central ring frame, and the central ring frame and the sub-frames are connected to each other; wherein the central ring frame is correspondingly sleeved outside the central steel pipe, and the sub-frame is sleeved outside the side steel pipe; the central ring frame comprises a detachable ring frame, and the detachable ring frame is arranged at the junction of the central ring frame and the sub-frame; A corrugated airbag, the corrugated airbag is arranged in the water stop groove, and the corrugated airbag is connected to an external air source through an air inlet pipe; A sealing component is arranged at the open end of the corrugated ring frame and seals the sliding gap.

2. The tunnel waterproof pipe curtain device according to claim 1, characterized in that: The head end and the tail end of the corrugated airbag are connected to form an annular closed structure, and the corrugated airbag is sleeved on the outer side of the occlusal steel pipe.

3. The tunnel waterproof pipe curtain device according to claim 2, characterized in that: A ventilation pipe is pre-buried in the water stop groove, the head end of the corrugated airbag is connected to one end of the ventilation pipe, and the tail end of the corrugated airbag is connected to the other end of the ventilation pipe.

4. The tunnel waterproof pipe curtain device according to claim 1, characterized in that: An elastic cover plate is installed at the notch of the water stop groove, and the elastic cover plate and the water stop groove are combined to form a accommodating chamber, and the corrugated airbag is accommodated in the accommodating chamber.

5. The tunnel waterproof pipe curtain device according to claim 4, characterized in that: The elastic cover plate completely covers the notch of the water stop groove, and the two sides of the elastic cover plate are respectively a fixed side and a free side. The fixed side is fixed to the inner wall of the corrugated ring frame close to the sealing assembly, and the free side extends in a direction away from the fixed side and overlaps the inner wall of the corrugated ring frame.

6. The tunnel waterproof pipe curtain device according to claim 5, characterized in that: The elastic cover plate is an elastic steel plate.

7. The tunnel waterproof pipe curtain device according to any one of claims 1 to 6, characterized in that: The air intake pipe is pre-buried in the corrugated ring frame, one end of the air intake pipe is connected to the corrugated airbag, and the other end extends to the outside of the corrugated ring frame and is used to be connected to the external air source.

8. The tunnel waterproof pipe curtain device according to any one of claims 1 to 6, characterized in that: The sealing assembly includes a plurality of sealing structures, and the plurality of sealing structures are sequentially connected along the circumference of the corrugated ring frame to form the sealing assembly.

9. The tunnel waterproof pipe curtain device according to claim 8, characterized in that: Each of the sealing structures comprises a cord rubber plate and a flap plate, both of which are mounted on the open end of the corrugated ring frame, and the cord rubber plate is located between the flap plate and the open end of the corrugated ring frame.

10. The tunnel waterproof pipe curtain device according to claim 9, characterized in that: The two ends of the cord rubber plate are respectively a mounting end and a free end, the mounting end is mounted on the open end of the corrugated ring frame, and the free end is a transition fillet structure.

11. The tunnel waterproof pipe curtain device according to any one of claims 1 to 6, characterized in that: The detachable ring frame is connected to the central ring frame by connecting bolts.

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