Portable tunnel maintenance device with air bag structure

Abstract

The utility model relates to the related technical field of tunnel engineering, in particular to a portable tunnel maintenance device with an air bag structure, which comprises a supporting frame formed by welding a plurality of supporting rods, and further comprises an air bag assembly, a gas storage assembly, a gas supply assembly, a gas supply assembly and a gas supply assembly, and the air bag assembly comprises an air bag unit arranged on the supporting frame and is used for supporting and protecting the wall surface of a tunnel after being filled with gas; and the maintenance atomization assembly comprises a plurality of nozzles which are oppositely distributed on the top of the supporting frame and is used for spraying and maintaining the wall surface of the tunnel. The tunnel wall surface can be supported and protected to a certain extent while the tunnel wall surface passes through during tunnel maintenance, so that the tunnel structure is prevented from collapsing or deforming; and spray curing with temperature self-adaptive adjustment is carried out on the tunnel wall surface, so that the concrete temperature difference of the tunnel wall surface is effectively reduced, and dry shrinkage or shrinkage cracks of the tunnel wall surface caused by large temperature change are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel engineering, in particular to a tunnel maintenance device with a portable airbag structure. Background Art

[0002] Tunnel engineering is a typical large-volume concrete project. Due to the hydration heat of cement, after the concrete is poured, it needs to be cured in time to effectively prevent cracks in the concrete caused by solidification shrinkage stress, so as to meet the requirements of concrete strength and durability.

[0003] At present, in tunnel construction operations, a lining trolley is generally used as a formwork. After the formwork curing is completed, it will be moved to the next section for continuous use of the formwork. Since the above-mentioned curing method is greatly affected by the construction quality of the lining trolley, in case of insufficient curing, failures may occur, affecting the continuity and accuracy of construction, and thus affecting the construction quality.

[0004] The above content is only used to assist in understanding the technical solution of the present invention, and does not represent an admission that the above content is the closest prior art. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the above deficiencies and provide a tunnel maintenance device with a portable airbag structure.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme: A tunnel maintenance device with a portable airbag structure, including a support frame formed by welding a plurality of support rods, and further including:

[0007] An airbag assembly, including an airbag unit arranged on the support frame, used to provide support and protection to the tunnel wall after being filled with gas;

[0008] A maintenance atomization assembly, including a plurality of spray heads arranged oppositely on the top of the support frame, used to spray and cure the tunnel wall.

[0009] Further, the support frame is composed of several arc-shaped arches longitudinally and equidistantly distributed. Each arc-shaped arch is provided with a plurality of cross bars and a plurality of vertical bars, and the plurality of cross bars and the plurality of vertical bars are symmetrically distributed on the end surfaces of the corresponding arc-shaped arches. Connecting bottom braces are arranged on both sides of the bottom of several arc-shaped arches, and a plurality of longitudinal bars are longitudinally arranged on several arc-shaped arches.

[0010] Further, a hollow structure is arranged in two longitudinal bars symmetrically distributed on both sides near the top of several arc-shaped arches; the hollow structure conveys the water introduced into the tunnel wall to a plurality of spray heads.

[0011] Further, the airbag unit includes an outer-arch airbag disposed on the outer-arch surface formed by several arc-shaped arches on the support vehicle frame. Annular airbags are provided at both longitudinal ends of the outer-arch airbag. Longitudinal airbags are correspondingly provided on both horizontal sides of the outer-arch airbag. Two groups of openings are symmetrically arranged on the outer-arch airbag; the openings are used for correspondingly assembling the nozzles.

[0012] Further, the airbag assembly further includes an air delivery conduit connected to the air inlet of the outer-arch airbag. An air inflation pump for inflating the sealed airbag body formed by the outer-arch airbag, annular airbags and longitudinal airbags is provided at the end of the air delivery conduit.

[0013] Further, a temperature sensor is provided on the annular airbag.

[0014] Further, the maintenance atomization assembly further includes a water delivery conduit disposed under the two side longitudinal rods and communicating with the hollow structure. A water tank for storing water is provided at the end of the water delivery conduit. A pump body for boosting pressure is provided at the end of the water tank connected to the water delivery conduit. A heating device is provided in the water tank; the heating device is used for adjusting the water temperature inside the water tank.

[0015] Further, a moisture preservation layer is provided on the outer surface of the outer-arch airbag; the moisture preservation layer is used for heat preservation and moisture preservation of the tunnel wall surface.

[0016] Further, several longitudinally arranged moving rollers are provided at the bottom of the connecting bottom brace. A matching linear track is provided on the several longitudinally arranged moving rollers.

[0017] Further, a passage is provided at the middle position of the end face of the arc-shaped arch frame for the multiple cross bars and multiple vertical bars.

[0018] Compared with the prior art, the present utility model has the following beneficial effects: By providing a support vehicle frame with an airbag assembly structure and being conveniently movable in the tunnel, the present utility model can support and protect the tunnel wall surface to a certain extent by using the airbag structure while passing through during tunnel maintenance, avoiding the collapse or deformation of the tunnel structure, being convenient to move and simple to operate; and through the setting of the maintenance atomization assembly and with the cooperation of the moisture preservation layer, spray maintenance for temperature adaptive adjustment of the tunnel wall surface is carried out, effectively reducing the concrete temperature difference of the tunnel wall surface and preventing dry shrinkage or shrinkage cracks caused by large temperature changes on the tunnel wall surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0020] Figure 1 A perspective three-dimensional structure diagram of the whole of an embodiment of the present utility model;

[0021] Figure 2 A perspective three-dimensional structure diagram of an airbag assembly of an embodiment of the present utility model;

[0022] Figure 3 A perspective three-dimensional structure diagram of a support vehicle frame of an embodiment of the present utility model;

[0023] Figure 4 A perspective three-dimensional structure diagram of a tunnel in cooperation with an embodiment of the present utility model;

[0024] Figure 5 A front structure diagram of another perspective of a tunnel in cooperation with an embodiment of the present utility model.

[0025] In the figure: 1, support vehicle frame; 11, arc arch frame; 12, cross bar; 13, vertical bar; 14, connecting bottom brace; 15, longitudinal bar; 2, airbag assembly; 21, airbag unit; 211, outer arch airbag; 212, annular airbag; 213, longitudinal airbag; 214, through port; 22, air delivery conduit; 23, air inflation pump; 24, temperature sensor; 3, maintenance atomization assembly; 31, nozzle; 32, water delivery conduit; 33, water tank; 34, heating device; 4, moisture preservation layer; 5, moving roller; 6, straight track. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present utility model will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if descriptions such as "first", "second", etc. are involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or the solution where A and B are satisfied simultaneously. In addition, "a plurality of" means two or more. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0029] As Figures 1-5 shown, a tunnel maintenance device with a portable airbag structure of the present utility model includes a support vehicle frame 1 formed by welding a plurality of support rods, and further includes:

[0030] An airbag assembly 2, including an airbag unit 21 arranged on the support vehicle frame 1, which is used to provide support and protection to the tunnel wall surface after being filled with gas;

[0031] A maintenance atomization assembly 3, including a plurality of spray heads 31 arranged oppositely at the top of the support vehicle frame 1, which is used to spray and maintain the tunnel wall surface. With such a design, through the airbag assembly 2 assembled on the top of the support vehicle frame 1, it is possible to provide a certain degree of support and protection to the tunnel wall surface while passing through during tunnel maintenance, avoiding the collapse or deformation of the tunnel structure. And the maintenance atomization assembly 3 fixed on the support vehicle frame 1 can perform spray maintenance with temperature self-adaptation adjustment while the airbag provides support and protection, effectively reducing the concrete temperature difference on the tunnel wall surface and preventing dry shrinkage or shrinkage cracks on the tunnel wall surface caused by large temperature changes.

[0032] In one embodiment, the support vehicle frame 1 is composed of several arc-shaped arches 11 longitudinally and equidistantly distributed. A plurality of cross bars 12 and a plurality of vertical bars 13 are arranged on each of the arc-shaped arches 11, and the plurality of cross bars 12 and the plurality of vertical bars 13 are symmetrically distributed on the end faces of the corresponding arc-shaped arches 11. Connecting bottom braces 14 are arranged on both sides of the bottom of the several arc-shaped arches 11, and a plurality of longitudinal bars 15 are longitudinally arranged on the several arc-shaped arches 11. With such a design, by using several arc-shaped arches 11, a plurality of cross bars 12, a plurality of vertical bars 13, the connecting bottom braces 14 on both sides of the bottom of the several arc-shaped arches 11, and the plurality of longitudinal bars 15 longitudinally distributed on the several arc-shaped arches 11, the overall welding of the support vehicle frame 1 is completed, playing a role in supporting the airbag assembly 2 and the maintenance atomization assembly 3 assembled thereon, ensuring good support strength and stiffness.

[0033] In one embodiment, a hollow structure is provided in two longitudinal rods 15 symmetrically distributed on both sides near the top of several of the arc-shaped arches 11; the hollow structure conveys the water introduced into the wall of the curing tunnel to a plurality of nozzles 31. With such a design, through the hollow structure formed by machining and leaving in the longitudinal rod 15, it can communicate with the water delivery cavities of a plurality of nozzles 31, realizing that the water flow input by external pressurization is synchronously conveyed to the liquid inlet ends of a plurality of nozzles 31 through the hollow structure opened on the longitudinal rod 15, achieving the effect of atomizing and spraying water on the tunnel wall.

[0034] In one embodiment, the airbag unit 21 includes an outer arch airbag 211 provided on the outer arch surface of several arc-shaped arches 11 arranged on the support vehicle frame 1. Annular airbags 212 are arranged at both longitudinal ends of the outer arch airbag 211. Longitudinal airbags 213 are correspondingly arranged on the horizontal two sides of the outer arch airbag 211. Two groups of openings 214 are symmetrically arranged on the outer arch airbag 211; the openings 214 are used for correspondingly assembling the nozzles 31. With such a design, through the inflatable airbag structure shown in Figure 2 formed by integrally molding the outer arch airbag 211, the annular airbags 212 and the longitudinal airbags 213, and the openings 214 provided on the outer arch airbag 211, and the cross-section of the openings 214 penetrating through the outer arch airbag 211 is a sealed structure, a complete inflatable airbag structure is realized, which is used for effectively supporting and protecting the tunnel wall after inflation.

[0035] In one embodiment, the airbag assembly 2 further includes an air delivery conduit 22 connected to the air inlet of the outer arch airbag 211, and an inflation air pump 23 for inflating the sealed airbag body formed by the outer arch airbag 211, the annular airbags 212 and the longitudinal airbags 213 is arranged at the end of the air delivery conduit 22. With such a design, through the air delivery conduit 22 connected to one air inlet of the outer arch airbag 211 and the inflation air pump 23 connected to the air delivery conduit 22, the inflation operation of the sealed airbag body is realized, and the operation is simple.

[0036] In one embodiment, a temperature sensor 24 is arranged on the annular airbag 212. With such a design, through the temperature sensor 24 pasted and fixed on the annular airbag 212, the surface temperature of the tunnel wall can be real-time feedback, providing data support for the temperature change of subsequent spray curing.

[0037] In one embodiment, the curing atomization assembly 3 further includes a water delivery conduit 32 disposed under the two side longitudinal bars 15 and communicating with the hollow structure. The end of the water delivery conduit 32 is provided with a water tank 33 for storing water, and a pump body for boosting pressure is disposed at the end of the water tank 33 connected to the water delivery conduit 32. With such a design, through the water delivery conduit 32 communicating with the hollow structure on the longitudinal bar 15 and the water tank 33 inserted at the end of the water delivery conduit 32, the pump body on the water tank 33 is started, and spray curing operation is performed on the nozzle 31 via the water tank 33 and the hollow structure;

[0038] Preferably, a heating device 34 is disposed in the water tank 33; the heating device 34 is used to adjust the water temperature inside the water tank 33. With such a design, through the heating device 34 fixed in the water tank 33, and the heating device 34 and the temperature sensor 24 being electrically connected through the control board, the surface temperature can be real-time fed back according to the temperature sensor 24 closely attached to the tunnel wall surface. The temperature change of the heating device 34 is controlled by the signal transmitted through the control board, so as to control the temperature change of the water stored in the water tank 33, meet the adaptive adjustment of the temperature of the sprayed water mist, effectively reduce the concrete temperature difference on the tunnel wall surface, and prevent dry shrinkage or shrinkage cracks on the tunnel wall surface caused by large temperature changes.

[0039] In one embodiment, a moisture preservation layer 4 is disposed on the outer surface of the outer arch airbag 211; the moisture preservation layer 4 is used to keep the tunnel wall surface warm and moist. With such a design, through the moisture preservation layer 4 coated on the outer surface of the outer arch airbag 211, the functions of heat preservation and moisture preservation can be achieved, and the speed of temperature loss can be reduced.

[0040] In one embodiment, several longitudinally arranged moving rollers 5 are disposed at the bottom of the connecting bottom brace 14, and a matching linear track 6 is disposed on the several longitudinally arranged moving rollers 5. With such a design, by connecting the corresponding number of moving rollers 5 to the bottom of the two side connecting bottom braces 14 by means including but not limited to bolt fixation, and the linear track 6 used in cooperation with the several moving rollers 5, the portable movement of the present utility model in the tunnel is realized, and the operation is convenient.

[0041] In one embodiment, a channel is disposed at the middle position of the end face of the arc-shaped arch frame 11 by the multiple cross bars 12 and the multiple vertical bars 13. With such a design, through the channel formed by the multiple cross bars 12 and the vertical bars 13 constituting on the support vehicle frame 1 as Figure 3 shown, the passing ability of the present utility model is improved, which is conducive to the passing of mechanical equipment and operators.

[0042] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or essential characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model.

Claims

1. A tunnel maintenance device with a portable airbag structure, comprising a support vehicle frame (1) formed by welding a plurality of support rods, characterized in that: It further includes: An airbag assembly (2), including an airbag unit (21) arranged on the support frame (1), which is used to provide support and protection to the tunnel wall surface after being filled with gas; A maintenance atomization assembly (3), including a plurality of spray nozzles (31) arranged oppositely at the top of the support frame (1), which is used to spray and maintain the tunnel wall surface.

2. The tunnel maintenance device with a portable airbag structure according to claim 1, characterized in that: The support frame (1) is composed of several arc-shaped arches (11) longitudinally and equidistantly distributed. A plurality of cross bars (12) and a plurality of vertical bars (13) are arranged on each arc-shaped arch (11), and the plurality of cross bars (12) and the plurality of vertical bars (13) are symmetrically distributed at the end faces of the corresponding arc-shaped arches (11). Connecting bottom braces (14) are arranged on both sides of the bottom of the several arc-shaped arches (11), and a plurality of longitudinal bars (15) are longitudinally arranged on the several arc-shaped arches (11).

3. The tunnel maintenance device with a portable airbag structure according to claim 2, wherein: A hollow structure is arranged in two longitudinal bars (15) symmetrically distributed on both sides near the top of the several arc-shaped arches (11); the hollow structure conveys the water introduced into the tunnel wall surface to the plurality of spray nozzles (31).

4. The tunnel maintenance device with a portable airbag structure according to claim 2, characterized in that: The airbag unit (21) includes an outer arch airbag (211) arranged on the outer arch surface formed by several arc-shaped arches (11) of the support frame (1). Annular airbags (212) are arranged at both longitudinal ends of the outer arch airbag (211), longitudinal airbags (213) are correspondingly arranged on the horizontal two sides of the outer arch airbag (211), and two groups of through openings (214) are symmetrically arranged on the outer arch airbag (211); the through openings (214) are used for corresponding assembly of the spray nozzles (31).

5. The tunnel maintenance device with a portable airbag structure according to claim 4, characterized in that: The airbag assembly (2) further includes an air delivery conduit (22) connected to the air inlet of the outer arch airbag (211), and an air inflation pump (23) for inflating the closed airbag body formed by the outer arch airbag (211), the annular airbag (212) and the longitudinal airbag (213) is arranged at the end of the air delivery conduit (22).

6. The tunnel maintenance device with a portable airbag structure according to claim 4, characterized in that: A temperature sensor (24) is arranged on the annular airbag (212).

7. The tunnel maintenance device with a portable airbag structure according to claim 2, characterized in that: The maintenance atomization assembly (3) further includes a water delivery conduit (32) arranged under the two longitudinal bars (15) and communicated with the hollow structure. A water tank (33) for storing water is arranged at the end of the water delivery conduit (32). A pump body for boosting is arranged at the end of the water tank (33) connected to the water delivery conduit (32), and a heating device (34) is arranged in the water tank (33); the heating device (34) is used to adjust the water temperature inside the water tank (33).

8. The tunnel maintenance device with a portable airbag structure according to claim 4, characterized in that: A moisture preservation layer (4) is arranged on the outer surface of the outer arch airbag (211); the moisture preservation layer (4) is used to keep the tunnel wall surface warm and moist.

9. The tunnel maintenance device with a portable airbag structure according to claim 2, characterized in that: Several longitudinally arranged moving rollers (5) are arranged at the bottom of the connecting bottom brace (14), and a matching linear track (6) is arranged on the several longitudinally arranged moving rollers (5).

10. The tunnel maintenance device with a portable airbag structure according to claim 2, characterized in that: Channels are arranged at the middle positions of the end faces of the arc-shaped arches (11) of the plurality of cross bars (12) and the plurality of vertical bars (13).

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