Tunnel inverted arch base pouring device

Abstract

The application discloses a tunnel inverted arch base pouring device, which comprises a flat bracket located above an excavation area, a swing arm is hinged to the flat bracket, a horizontal shaft rod is connected to the lower end of the swing arm, the swing arm comprises a positioning upper arm and a moving lower arm, the moving lower part can move along the axial direction, the swing arm drives the horizontal shaft rod to move along an arc track, a rotating sleeve is sleeved on the horizontal shaft rod, a cleaning part, a spraying part and a screed plate are fixed on the circumferential surface of the rotating sleeve, the cleaning part, the spraying part and the screed plate are arranged around the central axis of the horizontal shaft rod, and the spraying part is located between the cleaning part and the screed plate; compared with the prior art, the tunnel inverted arch base pouring device has the beneficial effects that after grouting is completed, the screed plate can be turned to the bottommost position, at this time, the cleaning part and the spraying part are simultaneously turned and moved, the screed plate is moved by controlling the swing arm, the screed plate is realized, and the construction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of tunnel construction equipment, and particularly relates to a device for pouring a base in the construction of a tunnel inverted arch. BACKGROUND

[0002] In tunnel construction, in order to increase the firmness and safety of the tunnel, an inverted arch structure is needed to improve the stress conditions of the upper support structure and to resist the reaction force from the lower stratum of the tunnel. During construction, the base is excavated first, and then the base layer is poured in the excavated area. Before pouring, debris and floating stones need to be removed, and then pouring is performed and the poured part needs to be smoothed after pouring is completed. After the poured base layer solidifies, a steel frame is installed. In the prior art, the excavated base is manually cleaned, and then concrete is sprayed on the excavated base area by a spraying device. Finally, manual operation or a smoothing device is used for smoothing work, so that different construction equipment is needed for different construction processes. The installation and disassembly of different construction equipment increase the construction period, resulting in low efficiency and increased construction cost. SUMMARY

[0003] The present application aims to provide a tunnel inverted arch base pouring device that can increase construction efficiency.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is a tunnel invert foundation casting device, comprising a flat support frame located above the excavation area, a rocker arm hinged to the flat support frame, and a horizontal shaft connected to the lower end of the rocker arm. The rocker arm includes a positioning upper arm and a moving lower arm, the moving lower arm being movable along the axial direction. The rocker arm drives the horizontal shaft to move in an arc trajectory. A rotating sleeve is fitted on the horizontal shaft, and a cleaning part, a spraying part, and a scraper plate are fixed on the circumferential surface of the rotating sleeve. The cleaning part, spraying part, and scraper plate are arranged around the central axis of the horizontal shaft. The spraying part is located between the cleaning part and the scraper plate. The spraying part includes a lower shell and an upper shell, each having an inner cavity. The lower shell and the upper shell are located on the same plane and are both fixed to the rotating sleeve. The upper shell and the lower shell are connected... The device includes a flat material transfer tube located on the side of the rotating sleeve, a spray nozzle mounted on the lower housing, a feed pipe on the upper housing, an inclined guide plate fixed on the top side of the upper housing, a buffer box fixed on the rocker arm connected to the feed pipe via a connector, a cleaning section including an arc plate, a cleaning guide plate axially connected to the free end of the arc plate, a deformable elastic support plate connected between the arc plate and the inclined guide plate, a discharge port on the scraper plate, the inclined guide plate passing through the discharge port, a downwardly extending baffle plate connected to the scraper plate, a collection cover fixed to the lower housing connected to the lower end of the baffle plate, a vertical telescopic arm on the flat support frame, a flat support platform fixed to the upper end of the vertical telescopic arm, the flat support platform connected to the rocker arm via a docking shaft, and a limiting part on the flat support frame restricting the movement range of the rocker arm.

[0005] Furthermore, the limiting part includes a hanging plate fixed at the upper end to the flat bracket. The hanging plate is located on the side of the rocker arm. An arc-shaped support plate is provided on the side of the hanging plate. A movable stop bar is connected to the support plate. A stop head fixed to the positioning upper arm is provided above the support plate.

[0006] Furthermore, the support plate is provided with a sliding opening extending along the length direction, through which a locking screw passes. The upper end of the locking screw is fixed to the lower end of the stop rod, and a locking nut located below the support plate is screwed onto the locking screw.

[0007] Furthermore, the flat bracket is provided with a standard plate parallel to the vertical telescopic arm, and the standard plate is provided with a vertically movable marking part.

[0008] Furthermore, the middle position of the cleaning guide plate is connected to the arc plate via a straight shaft, and rolling rods and tension return springs are respectively provided at both ends of the cleaning guide plate.

[0009] Furthermore, the scraper plate is provided with a baffle plate parallel to the horizontal axis rod. The cross section of the baffle plate is a trapezoid with a narrow top and a wide bottom. The scraper plate is provided with a push-block part to control the movement of the baffle plate away from the horizontal axis rod.

[0010] Further, the push part comprises a limiting strip body matched with a limiting strip opening arranged on the scraping plate, the limiting strip opening is arranged in parallel with the material blocking strip plate, a pressing rod is arranged on the limiting strip body, the extension line of the pressing rod is perpendicular to the surface of the scraping plate, a pushing plate is connected to the pressing rod, and the end of the pushing plate pushes and extrudes the material blocking strip plate when the pressing rod moves downward.

[0011] Further, the lower end of the moving lower arm is fixed with an inverted U-shaped frame, the two ends of the horizontal shaft rod are connected with the two ends of the U-shaped frame, and the lower surface of the buffer box is provided with a groove matched with the U-shaped frame.

[0012] Compared with the prior art, the beneficial effects of the present application are: when the inverted arch construction is carried out, the flat bracket is installed above the excavated base, at this time, the cleaning part, the spraying part and the scraping plate on the horizontal shaft rod are all located in the excavated base, when the sundries in the excavated base are removed, only the cleaning part needs to be adjusted to be in the lowest position, so that the end of the arc plate is in contact with the base surface, at this time, the arc plate moves with the swing arm to push the sundries, and then the pouring treatment is carried out, at this time, the lower shell is adjusted to be in the lowest position, in this process, the arc plate is turned up to the inclined state, the sundries on the elastic supporting sheet fall into the storage cover through the discharge port on the scraping plate, and at this time, the concrete can be injected into the buffer box through the grouting device, so that the cleaning process and the grouting process are quickly connected, and when the grouting is completed, the scraping plate can be turned to the bottom position, at this time, the cleaning part and the spraying part are turned and moved at the same time, so that the scraping plate is moved by controlling the swing arm, the concrete is scraped, and the construction efficiency is increased. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a front view structural schematic diagram of the present application;

[0014] Figure 2 It is a connecting schematic diagram of the horizontal shaft rod, the cleaning part, the spraying part and the scraping plate of the present application;

[0015] Figure 3 It is a side view structural schematic diagram of the flat bracket of the present application;

[0016] Figure 4 It is a structural schematic diagram of the swing arm of the present application;

[0017] Figure 5 It is a structural schematic diagram of the spraying part of the present application;

[0018] Figure 6 It is a structural schematic diagram of the limiting part of the present application;

[0019] Figure 7 It is a structural schematic diagram of the material cleaning guide plate of the present application;

[0020] Figure 8 It is a sectional structural schematic diagram of the scraping plate of the present application;

[0021] Wherein, 1-pivot bracket, 2-swinging arm, 3-supporting leg, 4-cross shaft, 5-positioning upper arm, 6-moving lower arm, 7-rotating sleeve, 8-screeding plate, 9-lower housing, 10-upper housing, 11-conveying flat tube, 12-spraying head, 13-feeding pipe, 14-inclined guide plate, 15-abutment, 16-buffer box, 17-U-shaped frame, 18-arc plate, 19-clearing guide plate, 20-elastic supporting piece, 21-escape baffle, 22-collecting cover, 23-vertical telescopic arm, 24-pivot table, 25-abutment shaft, 26-supporting plate, 27-stop lever, 28-stop head, 29-upper fixed plate, 30-lower moving plate, 31-hanging rod, 32-locking screw, 33-locking nut, 34-standard plate, 35-rolling rod, 36-tension reset spring, 37-stopping strip plate, 38-limiting strip body, 39-limiting strip opening, 40-pressing rod, 41-advancing plate, 42-anti-escape rod, 43-homing spring, 44-telescopic push-pull cylinder. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0023] Reference Figures 1 to 5The utility model discloses a tunnel inverted arch base pouring device, including the flat bracket 1 of excavation area, the swing arm 2 of hinging has and the movable mouth for passing through swing arm 2 on flat bracket 1, and the support leg 3 of connecting between flat bracket 1 and tunnel ground, the lower end of swing arm 2 is connected with horizontal shaft rod 4, and swing arm 2 includes positioning upper arm 5 and mobile lower arm 6, and positioning upper arm 5 and mobile lower arm 6 are all rod-like arms, and mobile lower arm 6 can move along the axis direction, to adjust the length of swing arm 2, and swing arm 2 drives horizontal shaft rod 4 to move along the arc track, and horizontal shaft rod 4 is set with rotating sleeve 7, and the circumferential surface of rotating sleeve 7 is fixed with cleaning part, spraying part and screed plate 8, and cleaning part, spraying part and screed plate 8 are arranged around the central axis of horizontal shaft rod 4, and the inner end of locking rod is on horizontal shaft rod 4 when locking rod rotates and tightens, at this time, rotating sleeve 7 cannot rotate, so the position of cleaning part, spraying part and screed plate 8 can be adjusted, and spraying part is located between cleaning part and screed plate 8, and spraying part includes lower casing 9 and upper casing 10 that are all arranged with inner cavity, and lower casing 9 and upper casing 10 are all plate-like shells, and lower casing 9 and upper casing 10 are located on the same plane and are all fixed with rotating sleeve 7, and the lateral of rotating sleeve 7 is connected with the material transfer flat tube 11 between lower casing 9 and upper casing 10, and the space in lower casing 9 and upper casing 10 is communicated with material transfer flat tube 11, and spraying head 12 is installed on lower casing 9, and feeding pipe 13 is arranged on upper casing 10, and oblique guide plate 14 is fixed on the top side of upper casing 10, and feeding pipe 13 is connected with buffer box 16 fixed on swing arm 2 through butt joint 15, and the lower end of mobile lower arm 6 is fixed with inverted U-shaped frame 17, and the both ends of horizontal shaft rod 4 are connected with the both ends of U-shaped frame 17, and the lower surface of buffer box 16 is provided with recess that cooperates with U-shaped frame 17, when pouring, adjusting lower casing 9 to be the lowest state, can pour concrete into buffer box 16 through grouting equipment, and then concrete enters lower casing 9 and flows out through spraying head 12, after completing pouring operation, separating butt joint 15 from feeding pipe 13 and buffer box 16, so that rotating sleeve 7 can continue to rotate and adjust, and before pouring operation, the sundries in excavation base need to be removed, and cleaning part includes arc plate 18, and the free end of arc plate 18 is hinged with cleaning guide plate 19, and the lateral between arc plate 18 and oblique guide plate 14 is connected with deformable elastic supporting sheet 20, when lower casing 9 is vertical, elastic supporting sheet 20 is in the inclined state, adjusting cleaning part to be the lowest state, and the end of arc plate 18 contacts with base surface, at this time, arc plate 18 moves along with swing arm 2, and the sundries are pushed, and the sundries are located between cleaning guide plate 19 and elastic supporting sheet 20, and when the sundries and floatstone increase, the accumulated sundries and floatstone extrude elastic supporting sheet 20, and elastic supporting sheet 20 is deformed, and then pouring treatment is carried out, at this time, adjusting lower casing 9 to be the lowest state, in the process, arc plate 18 is turned up to the inclined state, and screed plate 8 is provided with discharge port, and oblique guide plate 14 passes through discharge port,The floating stone impurities on the elastic supporting sheet 20 will be partially passed through the discharge port at first, at this time the pressure on the elastic supporting sheet 20 is gradually reduced, the elastic supporting sheet 20 will gradually recover to the flat state, so that the floating stone is completely passed through the discharge port, the scraping plate 8 is connected with a downward extending discharging plate 21, the linear distance from the upper end of the discharging plate 21 to the horizontal shaft rod 4 is greater than the linear distance from the discharge port to the horizontal shaft rod 4, the lower end of the discharging plate 21 is connected with a collecting cover 22 fixed with the lower shell 9, the upper opening of the collecting cover 22 is butted with the lower end of the discharging plate 21, the floating stone impurities are blocked by the discharging plate 21 after being passed through the discharge port, and the floating stone impurities fall in the collecting cover 22, and the flat bracket 1 is provided with a vertical telescopic arm 23, the upper end of the vertical telescopic arm 23 is fixed with a flat supporting table 24, the flat supporting table 24 is connected with the swing arm 2 through a butt joint shaft 25, the horizontal height of the butt joint shaft 25 is changed and adjusted by the extension and contraction of the vertical telescopic arm 23 and the extension and contraction of the swing arm 2 at the same time, so that the arc center position of the moving track of the horizontal shaft rod 4 is changed, so as to adapt to the spraying and pouring of the floating stone impurities at the middle position and the two side positions of the arch base, the flat bracket 1 is provided with a limiting part for limiting the moving range of the swing arm 2, the swing angle of the swing arm 2 is limited by the limiting part, so as to facilitate the construction.

[0024] Referring to Figure 3 and Figure 6The limiting part includes a hanging plate fixed with the upper end of the flat bracket 1, the hanging plate is located at the side of the swing arm 2, the center axis of the butt joint shaft 25 on the swing arm 2 is perpendicular to the surface of the hanging plate, the side surface of the hanging plate is provided with an arc-shaped supporting plate 26, the supporting plate 26 is located on the side surface of the hanging plate close to the swing arm 2, the supporting plate 26 is connected with a movable stop rod 27, the upper side of the supporting plate 26 is provided with a stop head 28 fixed with the positioning upper arm 5, the hanging plate includes an upper fixed plate 29 and a lower movable plate 30, the upper fixed plate 29 is fixed with the flat bracket 1, the supporting plate 26 is fixed on the lower movable plate 30, the lower movable plate 30 is connected with the upper fixed plate 29 through a hanging rod 31, the lower movable plate 30 is provided with an insertion hole for passing through the hanging rod 31, the insertion hole is vertically arranged and the lower movable plate 30 is provided with a positioning top screw rod which can be screwed into the insertion hole, when not adjusted, the stop head 28 is located above the stop rod 27, at this time, when the swing arm 2 swings, the stop head 28 does not contact with the stop rod 27, when the vertical telescopic arm 23 and the swing arm 2 are shortened, the horizontal height of the stop head 28 also changes, when the stop head 28 moves to the lower side of the upper end of the stop rod 27, at this time, the stop rod 27 limits the moving range of the stop head 28, and the swing range of the swing arm 2 is also limited, the supporting plate 26 is provided with a sliding slot extending along the length direction, the sliding slot is provided with a locking screw rod 32, the upper end of the locking screw rod 32 is fixed with the lower end of the stop rod 27, the locking screw rod 32 is screwed with a locking nut 33 located below the supporting plate 26, the supporting plate 26 can be locked after sliding along the length direction of the sliding slot, so as to adjust the position of the stop rod 27 and change the swing range of the swing arm 2.

[0025] Referring to Figure 3 The flat bracket 1 is provided with a standard plate 34 parallel to the vertical telescopic arm 23, the standard plate 34 is provided with a mark part which can move vertically, before adjusting the vertical telescopic arm 23, the mark part on the standard plate 34 is moved to the specified position, so that when the vertical telescopic arm 23 is telescoped, the end position of the butt joint shaft 25 is aligned with the mark part, and then the vertical telescopic arm 23 can be stopped from telescoping, wherein when the standard plate 34 does not have intersection with the extension line of the butt joint shaft 25, the mark part can be a mark disc with magnetic attraction function, and at the same time, the standard plate 34 is a metal plate which can be attracted by the magnet, but when the standard plate 34 has intersection with the extension line of the butt joint shaft 25, a long slot extending vertically can be arranged on the standard plate 34, and the long slot is provided with a sliding disc which can be moved and positioned, the sliding disc is provided with a standard hole which can pass through the butt joint shaft 25, the horizontal position of the sliding disc is pre-set, then when the center axis of the butt joint shaft 25 coincides with the center axis of the standard hole, the adjustment of the vertical telescopic arm 23 is stopped, when the horizontal height of the butt joint shaft 25 changes, the moving track of the horizontal shaft rod 4 can be changed through the swing of the swing arm 2.

[0026] Referring toFigure 7 As shown in the figure, the middle position of the material cleaning guide plate 19 is connected with the arc plate 18 through a straight shaft, and the two ends of the material cleaning guide plate 19 are respectively provided with a rolling rod 35 and a tension reset spring 36. When the material cleaning guide plate 19 is in close contact with the surface of the excavated base, the tension reset spring 36 is in a stretched state. At this time, under the action of the restoring force of the tension reset spring 36, the rolling rod 35 on the material cleaning guide plate 19 can always be in contact with the excavated base, and in the process of moving the material cleaning guide plate 19, the surface of the excavated base can be prevented from being damaged.

[0027] When the surface of the poured base is scraped, as shown in the figure, Figure 8 As shown in the figure, the scraping plate 8 is provided with a material blocking strip plate 37 parallel to the horizontal shaft rod 4, the cross section of the material blocking strip plate 37 is a trapezoidal shape with a narrow upper part and a wide lower part, the scraping plate 8 is provided with a push block part for controlling the movement of the material blocking strip plate 37 away from the horizontal shaft rod 4, the push block part includes a limiting strip body 38, the limiting strip body 38 is matched with a limiting strip opening 39 provided on the scraping plate 8, the limiting strip opening 39 is arranged in parallel with the material blocking strip plate 37, the limiting strip body 38 is provided with a pressing rod 40, the extension line of the pressing rod 40 is perpendicular to the surface of the scraping plate 8, the pressing rod 40 is connected with a pushing plate 41, the pushing plate 41 extends to the material blocking strip plate 37, when the scraping plate 8 gradually moves to a horizontal state, the pressing rod 40 is in contact with the lower end of the steel frame in the upper support, so that the pressing rod 40 moves downward, when the pressing rod 40 moves downward, the end of the pushing plate 41 pushes and extrudes the material blocking strip plate 37, and the lower part of the limiting strip body 38 is provided with an anti-falling rod 42, the anti-falling rod 42 is connected with a homing spring 43 between the lower surface of the scraping plate 8, the homing spring 43 generates a restoring force after being stretched, when the material blocking strip plate 37 moves away from the horizontal shaft rod 4, the mud is extruded with the side surface of the base, so that the adhesion is increased.

[0028] In the arrangement of the scraping plate 8, when the cross section of the material blocking strip plate 37 is a rectangular shape, the end of the pushing plate 41 is provided with an inclined guide surface, so that the length of the upper side of the pushing plate 41 is greater than the length of the lower side, when the inclined guide surface on the pushing plate 41 is in contact with the edge of the material blocking strip plate 37, a pushing and extruding force is applied to the material blocking strip plate 37.

[0029] In addition, in the present application, the power mechanism for controlling the swinging of the lower end of the swinging arm 2 can select a telescopic push-pull cylinder 44, the telescopic push-pull cylinder 44 is connected between the flat bracket 1 and the upper end of the swinging arm 2, and the upper end of the telescopic push-pull cylinder 44 is detachably connected with the upper end of the swinging arm 2.

[0030] It will be obvious to a person skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments and can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein and no

[0031] Furthermore, it should be understood that although the description is made on the basis of the embodiments, not every embodiment contains only one independent technical solution, and the description is made in this way only for the sake of clarity, and a person skilled in the art should consider the description as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by a person skilled in the art.

Claims

1. A tunnel invert foundation casting device, comprising a flat support frame located above the excavation area, characterized in that: The aforementioned A rocker arm is hinged to the flat bracket. The lower end of the rocker arm is connected to a horizontal shaft. The rocker arm includes a positioning upper arm and a moving lower arm. The moving lower arm can move along the axial direction. The rocker arm drives the horizontal shaft to move in an arc-shaped trajectory. A rotating sleeve is fitted onto the horizontal shaft. A cleaning section, a spraying section, and a scraper are fixed on the circumference of the rotating sleeve. The cleaning section, spraying section, and scraper are arranged around the central axis of the horizontal shaft. The spraying section is located between the cleaning section and the scraper. The spraying section includes a lower shell and an upper shell, both with internal cavities. The lower shell and the upper shell are located on the same plane and are both fixed to the rotating sleeve. A material transfer flat tube located on the side of the rotating sleeve is connected between the body and the lower shell. A spray head is installed on the lower shell, and a feed pipe is provided on the upper shell. An inclined guide plate is fixed on the top side of the upper shell. The feed pipe is connected to a buffer box fixed on the rocker arm through a butt joint. The cleaning part includes an arc plate. A cleaning guide plate is axially connected to the free end of the arc plate. A deformable elastic support plate is connected between the arc plate and the inclined guide plate. A discharge port is provided on the scraper plate. The inclined guide plate passes through the discharge port. A downwardly extending baffle plate is connected to the scraper plate. A collection cover fixed to the lower shell is connected to the lower end of the baffle plate. The scraper plate is provided with a baffle plate parallel to the horizontal shaft, and the scraper plate is provided with a push part to control the baffle plate to move away from the horizontal shaft. The push-block part includes a limiting strip body, which is matched with a limiting strip opening provided on the scraper plate. The limiting strip opening is parallel to the baffle plate. A pressure rod is provided on the limiting strip body. The extension line of the pressure rod is perpendicular to the surface of the scraper plate. A push plate is connected to the pressure rod. When the pressure rod moves downward, the end of the push plate pushes the baffle plate. The flat support is provided with a vertical telescopic arm, and a flat support platform is fixed at the upper end of the vertical telescopic arm. The flat support platform is connected to the rocker arm through a docking shaft. The flat support is provided with a limiting part that limits the movement range of the rocker arm. The limiting part includes a hanging plate fixed at the upper end to the flat bracket. The hanging plate is located on the side of the rocker arm. An arc-shaped support plate is provided on the side of the hanging plate. A movable stop bar is connected to the support plate. A stop head fixed to the positioning upper arm is provided above the support plate.

2. The tunnel invert foundation casting device according to claim 1, characterized in that: The support plate is provided with a sliding opening extending along the length direction. A locking screw passes through the sliding opening. The upper end of the locking screw is fixed to the lower end of the stop rod. A locking nut located below the support plate is screwed onto the locking screw.

3. The tunnel invert foundation casting device according to claim 1, characterized in that: The flat bracket is provided with a standard plate parallel to the vertical telescopic arm, and the standard plate is provided with a vertically movable marking part.

4. The tunnel invert foundation casting device according to claim 1, characterized in that: The middle position of the cleaning guide plate is connected to the arc plate via a straight shaft, and the two ends of the cleaning guide plate are respectively provided with a rolling rod and a tension return spring.

5. The tunnel invert foundation casting device according to claim 1, characterized in that: The lower end of the movable lower arm is fixed with an inverted U-shaped frame, the two ends of the horizontal shaft are connected to the two ends of the U-shaped frame, and the lower surface of the buffer box is provided with a groove that cooperates with the U-shaped frame.

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