Splicing type supporting device for tunnel grouting

Abstract

The utility model discloses a splicing type tunnel grouting supporting device which comprises a supporting base, a lifting mechanism is arranged above the supporting base, a cavity is formed in the supporting base, a driving mechanism for driving the lifting mechanism to operate is arranged in the cavity, a fixing plate is arranged above the lifting mechanism, and the fixing plate is connected with the lifting mechanism. An arc-shaped plate is arranged above the fixing plate, positioning anchor rods are symmetrically arranged on the surface of the arc-shaped plate, an H-shaped reinforcing part is arranged between the arc-shaped plate and the fixing plate, and a penetrating grouting pipe is arranged on the arc-shaped plate; the spliced supporting device for tunnel grouting can be adjusted according to the height of a tunnel during use, the application range is wide, the grouting pipe can elastically float during use, excessive displacement is avoided, splicing is facilitated, and the spliced supporting device is suitable for application and popularization.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel construction technical field especially relates to a support device for spliced tunnel grouting. BACKGROUND

[0002] Tunnel is the engineering building that is buried in stratum, is one kind of form of human utilization of underground space, tunnel can be divided into traffic tunnel, hydraulic tunnel, municipal tunnel, mine tunnel, military tunnel, the structure of tunnel includes main building and two parts of subsidiary equipment, and grouting is through the means of pressure sending to inject the slurry that has certain setting time into loose soil layer or water-bearing rock fissure, and the slurry is solidified together with surrounding soil particles or rock, so that the nature of surrounding rock is improved.

[0003] However, the conventional tunnel grouting reinforcement support assembly is mostly fixed integrated structure when leaving factory, which is inconvenient to adjust grouting according to the height of the tunnel, resulting in the need for workers to replace the tunnel grouting reinforcement support assembly of matching size for operation when grouting the higher tunnel, which is time-consuming and laborious, and reduces the efficiency of tunnel grouting and the practicability of the equipment; in addition, the grouting pipe structure of the conventional device is relatively single, cannot realize elastic floating, has poor stability, and has unsatisfactory use effect. UTILITY MODEL CONTENT

[0004] The utility model aims at solving above -mentioned problem and provides a kind of support device for spliced tunnel grouting that can be adjusted according to the height of tunnel, more extensive application range, and grouting pipe can be elastically floated when being used, avoid excessive displacement, also benefit splicing.

[0005] To achieve the above object, the technical scheme of the utility model is as follows: a kind of support device for spliced tunnel grouting, including support base, the upper of support base is equipped with lifting mechanism, the cavity is equipped in support base, the driving mechanism that is equipped in cavity drives lifting mechanism to operate, the upper of lifting mechanism is equipped with fixed plate, the upper of fixed plate is equipped with arc plate, the surface of arc plate is symmetrically equipped with positioning anchor rod, H type reinforcing part is equipped between arc plate and fixed plate, the grouting pipe that is equipped on arc plate is penetrated.

[0006] Preferably, the lifting mechanism includes two groups of rotatable screw rods, the bottom end of the screw rod is arranged in the cavity, the top end extends upward through the support base, the top of the screw rod is provided with a threaded sleeve, a guide plate is fixedly connected between the two threaded sleeves, a positioning rod is vertically arranged in the guide plate, the bottom end of the positioning rod is fixed on the support base, and a stopper is arranged at the top end, and the guide plate and the threaded sleeve are lifted around the positioning rod.

[0007] Preferably, the driving mechanism comprises a double-shaft motor arranged in the cavity, two output shafts of the double-shaft motor are rotatably connected with the inner wall of the cavity respectively, a first bevel gear is arranged on the output shaft of the double-shaft motor, a second bevel gear matched with the first bevel gear is arranged at the bottom end of the screw rod, and the double-shaft motor drives the screw rod to rotate after operation.

[0008] Preferably, the H-shaped reinforcing piece is provided with a through hole for splicing the grouting pipe.

[0009] Preferably, the grouting pipe comprises an outer fixed pipe vertically fixed on the arc-shaped plate, an inner grouting pipe arranged in the outer fixed pipe, an annular groove arranged on the inner wall of the outer fixed pipe, a clamping ring arranged on the circumference of the inner grouting pipe and clamped in the annular groove, springs arranged above and below the clamping ring, and the inner grouting pipe can elastically float in the outer fixed pipe through the springs.

[0010] Preferably, the two ends of the inner grouting pipe are spliced with outer grouting pipes.

[0011] Preferably, the bottom of the supporting base is provided with a groove, a plurality of groups of hydraulic cylinders synchronously operating are arranged in the groove, a push plate is arranged at the output end of the hydraulic cylinder, the two sides of the push plate are arranged in guide grooves, and moving wheels are arranged at the bottom of the push plate.

[0012] The utility model discloses a kind of supporting devices for splicing type tunnel grouting, including supporting base, the top of the supporting base is equipped with lifting mechanism, cavity is equipped in the supporting base, driving mechanism is equipped in the cavity and drives lifting mechanism to operate, the top of the lifting mechanism is equipped with fixed plate, the top of the fixed plate is equipped with arc-shaped plate, the surface of the arc-shaped plate is symmetrically provided with positioning anchor rod, H-shaped reinforcing piece is equipped between the arc-shaped plate and fixed plate, and grouting pipe is equipped on the arc-shaped plate and penetrates;Compared with prior art, the supporting device for splicing type tunnel grouting has the beneficial effects that it can be adjusted according to tunnel height when in use, the application range is more extensive, and grouting pipe can elastically float when in use, avoid excessive displacement, and facilitate splicing. ACCURATE DRAWINGS

[0013] Fig. 1 It is the overall structure schematic diagram of the utility model discloses a kind of supporting devices for splicing type tunnel grouting.

[0014] Fig. 2 It is the internal structure schematic diagram of the utility model discloses a kind of supporting devices for splicing type tunnel grouting in grouting pipe.

[0015] In the figure: 1, support base; 2, screw rod; 3, threaded sleeve; 4, fixed plate; 5, arc plate; 6, H-shaped reinforcing member; 7, grouting pipe; 8, positioning anchor rod; 9, cavity; 10, rotating rod; 11, double-shaft motor; 12, first bevel gear; 13, second bevel gear; 14, support block; 15, guide groove; 16, push plate; 17, moving wheel; 18, groove; 19, hydraulic cylinder; 20, positioning rod; 21, stop block; 22, guide plate; 61, through hole; 71, outer fixing tube; 711, annular groove; 712, spring; 72, inner grouting pipe; 721, snap ring. DETAILED DESCRIPTION

[0016] The utility model will be explained further in detail now in combination with the drawings. The drawings are simplified schematic diagrams, and only schematically illustrate the basic structure of the utility model, so it only shows the structure related to the utility model.

[0017] Please refer to Figs. 1-2 A spliced tunnel grouting support device, including support base 1, the top of support base 1 is equipped with lifting mechanism, the inside of support base 1 is equipped with cavity 9, the inside of cavity 9 is equipped with drive mechanism that brings the operation of lifting mechanism, the top of lifting mechanism is equipped with fixed plate 4, the top of fixed plate 4 is equipped with arc plate 5, the surface of arc plate 5 is symmetrically equipped with positioning anchor rod 8, positioning anchor rod 8 is used for positioning, and the hole is more accurate before the use of the device, H-shaped reinforcing member 6 is equipped between arc plate 5 and fixed plate 4, and grouting pipe 7 is equipped on arc plate 5.

[0018] Specifically, the lifting mechanism includes two groups of rotatable screw rods 2, the bottom end of the screw rod 2 is arranged in the cavity 9, the top end extends upward through the support base 1, the top of the screw rod 2 is provided with a threaded sleeve 3, the fixed plate 4 is fixed on the top of the threaded sleeve 3, the two threaded sleeves 3 are provided with a fixedly connected guide plate 22, the guide plate 22 is provided with a vertically penetrating positioning rod 20, the bottom end of the positioning rod 20 is fixed on the support base 1, and the top end is provided with a stop block 21, the guide plate 22 and the threaded sleeve 3 are lifted around the positioning rod 20, and the grouting pipe 7 on the arc plate 5 is also lifted after the overall lifting, so that the tunnel of different heights can be used.

[0019] The drive mechanism includes a double-shaft motor 11 arranged in the cavity 9, the two output shafts of the double-shaft motor 11 are rotatably connected with the inner wall of the cavity 9, the output shaft of the double-shaft motor 11 is provided with a first bevel gear 12, the bottom end of the screw rod 2 is provided with a second bevel gear 13 matched with the first bevel gear 12, and the double-shaft motor 11 is driven to rotate the screw rod 2 by the cooperation of the first bevel gear 12 and the second bevel gear 13 after operation.

[0020] In the embodiment, the H-shaped reinforcing member 6 is provided with a through hole 61 for splicing the grouting pipe, and the external grouting pipe is spliced with the grouting pipe 7 at the through hole 61, and the overall length can be set according to requirements.

[0021] Further, the grouting pipe 7 comprises an outer fixed pipe 71 fixed vertically on the arc-shaped plate, the outer fixed pipe 71 is internally provided with an inner grouting pipe 72, the inner wall of the outer fixed pipe 71 is circumferentially provided with an annular groove 711, the circumference of the inner grouting pipe 72 is provided with a clamping ring 721 clamped in the annular groove 711, the upper and lower parts of the clamping ring 721 are provided with springs 712, and the inner grouting pipe 72 can elastically float in the outer fixed pipe 71 through the springs 712; the two ends of the inner grouting pipe 72 can splice external flexible grouting pipes according to the length, and the splicing positions can be connected through pipe clamps, metal clamps and the like.

[0022] In the embodiment, the outer fixed pipe 71 and the inner grouting pipe 72 are both hard plastic or metal pipes, and the two ends of the inner grouting pipe 72 splice external flexible grouting pipes; when the grouting pipe is filled with slurry, the overall weight increases to make the inner grouting pipe 72 as a whole drop, at this time, the spring above the clamping ring 721 is stretched, and the spring below the clamping ring 721 is compressed; when the grouting pipe stops grouting, the overall weight decreases, at this time, the spring above the clamping ring 721 is pulled back, and the spring below the clamping ring 721 is upwardly rebounded to make the whole return to the original position, so that elastic buffering can be realized, and excessive displacement of the inner grouting pipe 72 can be avoided.

[0023] As a preferred scheme, the bottom of the support base 1 is provided with a recess 18, a plurality of groups of synchronously operated hydraulic cylinders 19 are arranged in the recess 18, the output end of the hydraulic cylinder 19 is provided with a push plate 16, the two sides of the push plate 16 are arranged in a guide groove 15, and the bottom of the push plate 16 is provided with a moving wheel 17; in use, the push plate 16 and the moving wheel 17 are retracted into the recess 18, when grouting is completed and the equipment needs to be moved, the push plate 16 drives the bottom moving wheel 17 to be in contact with the ground through the driving of the two sides of the hydraulic cylinder 19, and then the whole equipment is lifted to move the whole equipment.

[0024] When the device is used, whether the device has problems affecting use should be checked, when the device is used, the double-shaft motor 11 and the hydraulic cylinder 19 are started through external power connection, and the whole device starts to work; when working, the two sides of the rotating rod 10 drive the corresponding first bevel gears 12 to rotate through the driving of the double-shaft motor 11, so that the first bevel gears 12 drive the second bevel gears 13 to rotate, the threaded sleeve 3 is moved upward through the screw rod 2, and then the fixed plate 4 drives the arc-shaped plate 5 to be lifted upward, and then the grouting pipe 7 and the positioning anchor rod 8 are used for grouting in the tunnel, and at the same time, the guide plate 22 slides on the positioning rod 20, so as to have a limiting and guiding effect on the threaded sleeve 3.

[0025] Obviously, the above embodiments are only examples for clearly illustrating the present application and are not intended to limit the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments are not required to be enumerated. The changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A support device for tunneling by splicing, characterized by, The utility model provides a support base is provided with lifting mechanism in the top, and the support base is equipped with cavity, and the cavity is equipped with drive mechanism that drives the operation of lifting mechanism, and the top of lifting mechanism is equipped with fixed plate, and the top of fixed plate is equipped with arc plate, and the surface of arc plate is equipped with the positioning anchor rod that is symmetrically arranged, and the between fixed plate and arc plate is equipped with H type reinforcing part, and the arc plate is equipped with the grouting pipe that penetrates.

2. The support device for tunnel grouting in sections according to claim 1, characterized in that, The lifting mechanism includes two groups of rotatable screw rods, the bottom end of the screw rod is arranged in the cavity, the top end extends upward through the support base, the top of the screw rod is provided with a threaded sleeve, the fixed plate is fixed on the top of the threaded sleeve, the two threaded sleeves are provided with a guide plate fixedly connected therebetween, the guide plate is provided with a vertical positioning rod penetrating therethrough, the bottom end of the positioning rod is fixed on the support base, and the top end is provided with a stopper, and the guide plate and the threaded sleeve are lifted around the positioning rod.

3. The support device for tunnel grouting in sections according to claim 2, characterized in that, The drive mechanism includes a double-shaft motor arranged in the cavity, the two output shafts of the double-shaft motor are rotatably connected with the inner wall of the cavity, a first bevel gear is arranged on the output shaft of the double-shaft motor, the bottom end of the screw rod is provided with a second bevel gear matched with the first bevel gear, and the double-shaft motor drives the screw rod to rotate after operation.

4. The split-type support device for tunnel grouting according to claim 1, wherein The H-shaped reinforcing part is provided with a through hole for splicing the grouting pipe.

5. The split-type support device for tunnel grouting according to claim 1, wherein The grouting pipe includes an outer fixed pipe vertically fixed on the arc plate, the outer fixed pipe is provided with an inner grouting pipe, the inner wall of the outer fixed pipe is provided with an annular groove, the circumference of the inner grouting pipe is provided with a clamping ring clamped in the annular groove, the upper and lower parts of the clamping ring are provided with springs, and the inner grouting pipe can elastically float in the outer fixed pipe through the springs.

6. The support device for tunnel grouting in sections according to claim 5, characterized in that, The two ends of the inner grouting pipe are spliced with external grouting pipes.

7. The support device for tunnel grouting in sections according to any one of claims 1 to 6, characterized in that, The bottom of the support base is provided with a groove, the groove is provided with a plurality of groups of hydraulic cylinders operating synchronously, the output end of the hydraulic cylinder is provided with a push plate, the two sides of the push plate are arranged in the guide groove, and the bottom of the push plate is provided with a moving wheel.

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