Foundation pit protection device for pipeline crossing open cut station

Abstract

The utility model discloses a pipeline cross open cut station foundation pit protection device which comprises two parallel cross beams arranged above a foundation pit in the pipeline direction, supporting cushion blocks arranged on the lower portions of the two ends of the cross beams and a plurality of cross braces horizontally arranged at intervals in the length direction of the cross beams. The two ends of the cross beam are connected with screw rods through adjusting nuts correspondingly, the lower ends of the two sets of screw rods located at the two ends of the cross beam are detachably connected with a wind and rain shielding mechanism, the lower ends of the remaining screw rods are connected with arc-shaped supporting brackets through adjusting nuts, and two clamping plates with the distance adjustable are arranged on the arc-shaped supporting brackets in a sliding mode. According to the underground pipeline supporting device, the stability and the protection performance of the device can be improved, the pipeline can be evenly supported, and the risk that underground pipelines are exposed in the air and damaged is reduced through the wind and rain shielding mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of foundation pit construction, and specifically relates to a pipeline across open cut station foundation pit protection device. BACKGROUND

[0002] With the advance of urbanization, deep foundation pit construction is more and more common in the process of urban municipal engineering construction, and in the process of open cut station construction in the urban area, various complex municipal pipelines are often encountered in the earthwork excavation range. These pipelines bear the functions of water supply, gas supply, communication and sewage discharge. Once the pipeline is damaged in construction, it will cause adverse effects, and subsequent work is difficult to continue. At present, the general way to solve the problem of protecting underground pipelines is to move the pipelines to the outside of the foundation pit. However, the pipeline relocation cost is too high, and the relocation period is long, which will delay the normal construction period, and some pipelines cannot be relocated. In order to avoid damage to the suspended pipeline during the foundation pit construction process, the pipeline must be supported and protected, and the pipeline will be buried under the ground again when the earthwork is backfilled after the foundation pit project is completed.

[0003] The prior art mostly uses U-shaped pipe supports to support and protect the pipeline. However, the diameters of underground pipelines are different, and it is difficult to match the completely fitted U-shaped pipe supports. When the size of the pipe support does not match the diameter of the pipeline, it is easy to cause the pipeline to be single in stress, and the stability and protection performance are not good. In addition, the pipeline is in an open state for a long time, and is subjected to the sun's exposure and the erosion of wind and rain, which can easily cause damage and deformation of the pipeline. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a pipeline across open cut station foundation pit protection device. The prior art has the problems of low fitting degree of the pipe support and the pipeline, single stress of the pipeline, poor stability and protection performance, poor flexibility, and long-term exposure of the pipeline to the sun and wind and rain, which can easily cause damage and deformation of the pipeline.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0006] Pipeline across open cut station foundation pit protection device, including two mutually parallel cross beams arranged above the foundation pit along the pipeline direction, support pads arranged at the lower part of the two ends of the cross beam, and a plurality of horizontal spacing arranged along the length direction of the cross beam, the two ends of the cross beam are connected with screw rods through adjusting nuts respectively, the lower ends of the two groups of screw rods located at the two ends of the cross beam are detachably connected with wind and rain shielding mechanisms, the remaining lower ends of the screw rods are connected with arc-shaped support brackets through adjusting nuts, two spacing adjustable clamping plates are slidably arranged on the arc-shaped support brackets, the contact surface of the clamping plates with the pipeline is an arc surface, and the wind and rain shielding mechanisms are located on the upper part of the arc-shaped support brackets.

[0007] Preferably, the wind and rain shielding mechanism comprises: a fixed rod detachably connected to the lower end of one group of screw rods, and a curtain assembly detachably connected to the lower end of the other group of screw rods, the curtain assembly comprises: two mounting boxes connected with the two screw rods respectively, two rotating shafts rotatably connected to the mounting boxes at the two ends, and a curtain wound on the rotating shafts, one end of the curtain is fixed on the rotating shaft, and the other end of the curtain is provided with a connecting rope.

[0008] Preferably, the curtain comprises an upper curtain and two side curtains connected to the two sides of the upper curtain, and the side curtains are adhered to the upper curtain by magic tape.

[0009] Preferably, the rotating shaft is hollow inside, and the curtain assembly further comprises an automatic winding mechanism arranged inside the rotating shaft, the automatic winding mechanism comprises: a fixed shaft located inside the rotating shaft and fixedly connected at both ends to the mounting boxes, and a coil spring arranged on the fixed shaft, the inner end of the coil spring is fixed on the fixed shaft, and the outer end is fixed on the inner wall of the rotating shaft.

[0010] Preferably, the two clamping plates located on the same arc-shaped support bracket are provided with length-adjustable fixing belts, and the arc surface of the clamping plate is provided with a rubber pad.

[0011] Preferably, the arc-shaped support bracket comprises two corresponding support plates, a connecting block hingedly connected to the distal end of the two support plates away from each other, and a connecting piece provided at the bottom of the corresponding end of the two support plates, a screw hole is provided on the connecting piece, the two corresponding connecting pieces are fixedly connected together by bolts and nuts, a through hole matched with the size of the screw rod is provided on the connecting block, the screw rod passes through the through hole and is connected with the adjusting nut, and the two clamping plates are slidably connected on the two corresponding support plates respectively.

[0012] Preferably, the inner side of the support plate is provided with a rubber pad.

[0013] Preferably, one end of the support plate close to the connecting block is provided with two corresponding side plates which are hingedly connected.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. The utility model discloses a flexible height adjustment of arc support and wind -proof rain -proof mechanism can be adjusted through the cooperation of screw rod and adjusting nut, adapts to different foundation pit depth and pipeline suspension height requirement, through adjustable spacing's clamping plate and arc surface design, make the device can adapt to the pipeline of different pipe diameter, ensure that the stress is even, avoid partial stress concentration and lead to pipeline deformation, through wind -proof rain -proof mechanism reduces the risk of underground pipeline damage exposed in the air;

[0016] 2. The utility model discloses quick cloth curtain is unfolded and covers pipeline from pivot, and through connecting rope is fixed on fixed rod, and construction efficiency is high, and the space is small after cloth curtain is rolled up, convenient transportation storage, and the detachable connection of installation box and screw rod is convenient individually replacement of damaged part, and maintenance cost is reduced;

[0017] 3. The utility model discloses the automatic recovery of cloth curtain through spring automatic winding mechanism, further improve the construction efficiency, and the combination of upper curtain and side curtain forms three -dimensional protection, and further improve the effect of cloth curtain component blocking oblique rain and wind erosion;

[0018] 4. The utility model discloses through rubber pad provides flexible contact interface, increases friction coefficient and avoids arc support and directly contact pipeline and lead to anticorrosive layer breakage, through setting telescopic fixing belt forms annular constraint to pipeline, and together with clamping plate constitutes three -point positioning system, further improves the stability of pipeline on arc support;

[0019] 5. The utility model discloses through two corresponding setting support plate group arc support, through the connecting block of support plate bottom end with bolt and nut connection, can realize the quick installation and dismounting of arc support, further can improve the installation and dismounting efficiency of whole device. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be to the drawings needed in the embodiment used briefly introduction, should understand, the following drawings only shows some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for ordinary skilled person in the art comes, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.

[0021] Figure 1 It is pipeline crossing open cut station foundation pit protection device structure schematic diagram;

[0022] Figure 2 It is pipeline crossing open cut station foundation pit protection device's side view;

[0023] Figure 3Fig. 1 is a schematic diagram of the mechanism of the pipeline crossing open-cut station foundation pit protection device after the curtain is blocked;

[0024] Figure 4 Fig. 2 is an enlarged view of the part in Fig. 1;

[0025] Figure 5 Fig. 3 is a schematic diagram of the support plate mechanism of the pipeline crossing open-cut station foundation pit protection device;

[0026] Figure 6 Fig. 4 is a schematic diagram of the structure of the pipeline crossing open-cut station foundation pit protection device after the curtain is unfolded;

[0027] Figure 7 Fig. 5 is a schematic diagram of the mechanism of the pipeline crossing open-cut station foundation pit protection device after the curtain is folded;

[0028] Fig. 1 is a schematic diagram of the mechanism of the pipeline crossing open-cut station foundation pit protection device after the curtain is blocked; DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0031] In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0032] In addition, if the terms "first", "second" or "third" and the like are used herein, it is merely to distinguish one entity from another, and does not imply a relative importance.

[0033] In addition, if the terms "horizontal", "vertical", "suspended" and the like are used herein, it does not mean that the components must be absolutely horizontal or suspended, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0034] In the description of the present application, it should be pointed out that, unless otherwise specified and limited, if the terms "arrangement", "installation", "connection", "connection" and the like appear, they should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0036] As shown in Figure 1 and Figure 3 The pipeline across open cut station foundation pit protection device, including two parallel beams 1 set above the foundation pit along the direction of the pipeline, support pads 2 set at the lower part of both ends of the beam 1, and a plurality of horizontal spacing along the length of the beam 1 The cross brace 3 is arranged, the both ends of the beam 1 are connected with the screw rod 5 through the adjusting nut 4, the lower end of the two groups of screw rods 5 located at both ends of the beam 1 is detachably connected with the wind and rain shielding mechanism 6, the lower end of the remaining screw rod 5 is connected with the arc support 7 through the adjusting nut 4, the arc support 7 is provided with two adjustable spacing clamping plates 8, the contact surface between the clamping plate 8 and the pipeline is arc surface, and the wind and rain shielding mechanism 6 is located on the upper part of the arc support 7.

[0037] The device forms a spanning main load-bearing frame above the foundation pit through the beam 1 and the support pad, the cross brace 3 is welded between the beam 1 to form a truss structure, the pipeline load is uniformly transmitted to the stable stratum on both sides of the foundation pit, the lifting mechanism composed of the screw rod 5 and the adjusting nut 4 can accurately adjust the vertical height of the arc support 7, match the pipeline suspension position under different foundation pit excavation depths, and the adjustable spacing clamping plate 8 and the arc surface design make the device adapt to pipelines with different diameters, ensure uniform stress, avoid local stress concentration leading to pipeline deformation, and the wind and rain shielding mechanism 6 reduces the risk of damage to underground pipelines exposed to air.

[0038] The wind and rain shielding mechanism 6 comprises a fixed rod 9 detachably connected to the lower ends of a group of screw rods 5, and a curtain assembly 10 detachably connected to the lower ends of another group of screw rods 5, the curtain assembly 10 comprising two mounting boxes 11 connected to two screw rods 5 respectively, two rotating shafts 12 rotatably connected to the mounting boxes 11, and a curtain 13 wound around the rotating shafts 12, one end of the curtain 13 being fixed to the rotating shafts 12, and the other end of the curtain 13 being provided with a connecting rope 14.

[0039] The curtain 13 comprises an upper curtain 15 and two side curtains 16 connected to the two sides of the upper curtain 15, the side curtains 16 being adhered to the upper curtain 15 by magic tape; the curtain 13 is provided with a first adhesive strip corresponding to the first side curtain 16, and the back of the first side curtain 16 is provided with a second adhesive strip corresponding to the second side curtain 16.

[0040] The rotating shafts 12 are hollow, and the curtain assembly 10 further comprises an automatic winding mechanism 17 arranged in the rotating shafts 12, the automatic winding mechanism 17 comprising a fixed shaft 18 located in the rotating shafts 12 and fixedly connected to the mounting boxes 11 at both ends, and a coil spring 19 arranged on the fixed shaft 18, the inner end of the coil spring 19 being fixed to the fixed shaft 18, and the outer end being fixed to the inner wall of the rotating shaft 12.

[0041] During the arrangement of the wind and rain shielding mechanism 6, the connecting rope 14 is first pulled to pull the curtain 13 out of the rotating shaft 12, and at the same time the rotating shaft 12 rotates to store energy in the coil spring 19; after the curtain 13 completes covering the pipeline, the connecting rope 14 is fixed to the fixed rod 9, and the covering of the curtain 13 is completed; the upper curtain 15 and the side curtains 16 form a three-sided wrapping through magic tape, further improving the effect of the curtain 13 assembly 10 in resisting oblique wind and rain erosion; when the device is used up, the connecting rope 14 on the fixed rod 9 is untied, the coil spring 19 loses tension and releases energy, thereby driving the rotating shaft 12 to rotate, and realizing automatic recovery of the curtain 13, further improving the construction efficiency of the device.

[0042] The two clamping plates 8 located on the same arc-shaped support bracket 7 are provided with adjustable length fixing belts 20, and the arc-shaped surface of the clamping plate 8 is provided with a rubber pad 21; the rubber pad provides a flexible contact interface, which not only increases the friction coefficient but also avoids damage to the corrosion-resistant layer caused by direct contact of the arc-shaped support bracket with the pipeline; the telescopic fixing belts form a ring-shaped constraint on the pipeline, and together with the clamping plates, form a three-point positioning system, further improving the stability of the pipeline on the arc-shaped support bracket.

[0043] The arc-shaped supporting bracket 7 comprises two corresponding supporting plates 22, a connecting block 23 hingedly connected to the distal ends of the two supporting plates 22, and connecting members 24 provided at the bottoms of the corresponding ends of the two supporting plates 22, wherein the connecting members 24 are provided with screw holes, the two corresponding connecting members 24 are fixedly connected together by bolts and nuts, the connecting block 23 is provided with a through hole 25 matching the size of the screw rod, the screw rod is connected to the adjusting nut 4 through the through hole 25, and the two clamping plates 8 are slidingly connected to the two corresponding supporting plates 22, respectively.

[0044] The inner side of the supporting plate 22 is provided with a rubber pad 21.

[0045] The end of the supporting plate 22 close to the connecting block 23 is provided with two corresponding side plates 26, and the connecting block 23 and the two side plates 26 are hingedly connected.

[0046] In practice, the connection between the two connecting members 24 can be released before construction, so that the supporting plates 22 are rotated to a vertical state under their own gravity, so that when the device is hoisted above the foundation pit, the pipeline can be directly located in front of the two corresponding screw rods 5, and then the supporting plates 22 are connected by bolts and nuts, thereby realizing the assembly of the arc-shaped supporting bracket 7, and then the distance between the supporting bracket and the bottom end of the pipeline is adjusted by the adjusting nut, so that the bottom end of the pipeline is in contact with the arc-shaped supporting bracket 7; when the device is used up, the connection between the two connecting members 24 is also released, and then the device is directly hoisted upward, so that the device can be disassembled, which is convenient to operate and has high practicability.

[0047] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described by referring to the preferred embodiments of the present application, those skilled in the art should understand that various changes can be made in form and details without departing from the spirit and scope of the present application as defined in the appended claims.

Claims

1. A pipeline crossing open cut station foundation pit protection device, comprising two mutually parallel cross beams (1) arranged above the foundation pit along the pipeline direction, support pads (2) arranged at the lower part of both ends of the cross beams (1), and a plurality of horizontal cross braces (3) arranged horizontally along the length direction of the cross beams (1), characterized in that: The both ends of the crossbeam (1) are connected with screw rod (5) through adjusting nut (4) respectively, the lower end of two groups of screw rod (5) located at the both ends of the crossbeam (1) is detachably connected with wind and rain shielding mechanism (6), the lower end of the remaining screw rod (5) is connected with arc-shaped support bracket (7) through adjusting nut (4), the arc-shaped support bracket (7) is slidably provided with two adjustable spacing clamping plates (8), the contact surface of the clamping plate (8) and the pipeline is arc surface, the wind and rain shielding mechanism (6) is located on the upper portion of the arc-shaped support bracket (7).

2. The pipeline across open cut station caisson protection apparatus of claim 1, wherein: The wind and rain shielding mechanism (6) comprises: a fixed rod (9) detachably connected to the lower end of one group of screw rod (5), and a curtain assembly (10) detachably connected to the lower end of the other group of screw rod (5), the curtain assembly (10) comprises two mounting boxes (11) connected with two screw rods (5) respectively, two rotating shafts (12) rotatably connected to the mounting boxes (11) at both ends, and a curtain (13) wound on the rotating shaft (12), one end of the curtain (13) is fixed on the rotating shaft (12), and the other end of the curtain (13) is provided with a connecting rope (14).

3. The pipeline across open cut station caisson protection apparatus of claim 2, wherein: The curtain (13) comprises an upper curtain (15) and two side curtains (16) connected on both sides of the upper curtain (15), and the side curtains (16) are adhered to the upper curtain (15) by magic tape.

4. The pipeline across open cut station caisson protection apparatus of claim 2, wherein: The rotating shaft (12) is hollow, and the curtain assembly (10) further comprises an automatic winding mechanism (17) arranged in the rotating shaft (12), the automatic winding mechanism (17) comprises a fixed shaft (18) located in the rotating shaft (12) and fixedly connected to the mounting boxes (11) at both ends, and a coil spring (19) arranged on the fixed shaft (18), the inner end of the coil spring (19) is fixed on the fixed shaft (18), and the outer end is fixed on the inner wall of the rotating shaft (12).

5. The pipeline across open cut station excavation protection apparatus of claim 1, wherein: The two clamping plates (8) located on the same arc-shaped support bracket (7) are provided with a length-adjustable fixing belt (20), and the arc surface of the clamping plate (8) is provided with a rubber pad (21).

6. The pipeline spanning trenching vehicle station pit protection device of claim 5, wherein: The arc-shaped support bracket (7) comprises two corresponding support plates (22), a connecting block (23) hinged to the distal ends of the two support plates (22) away from each other, a connecting piece (24) is arranged on the bottom of the corresponding end of the two support plates (22), a screw hole is arranged on the connecting piece (24), the two corresponding connecting pieces (24) are fixedly connected together by bolts and nuts, a through hole (25) matched with the size of the screw rod is arranged on the connecting block (23), the screw rod passes through the through hole (25) and is connected with the adjusting nut (4), and the two clamping plates (8) are slidably connected on the two corresponding support plates (22) respectively.

7. The pipeline spanning trenching vehicle station pit protection device of claim 6, wherein: The inner side of the support plate (22) is provided with a rubber pad (21).

8. The pipeline spanning trenching vehicle station pit protection device of claim 6, wherein: The end of the support plate (22) close to the connecting block (23) is provided with two corresponding side plates (26), and the connecting block (23) and the two side plates (26) are hinged.

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