A concrete pouring device for tunnel inverted arch construction

Abstract

This invention discloses a concrete pouring device for tunnel invert construction, relating to the field of concrete pouring technology. It includes a main frame with two symmetrically arranged feeding clamping mechanisms. Each feeding clamping mechanism has a drive roller mechanism and a deflection clamping mechanism. The main frame also has a moving block mechanism with a reciprocating vibration mechanism and a vibration head mechanism. Two symmetrically arranged lifting stop mechanisms with elastic displacement plate mechanisms are also provided on the main frame. This invention, by setting up the feeding clamping mechanisms, can feed and clamp the drive roller mechanism and deflection clamping mechanism onto the inner wall of tunnels of different sizes. The drive roller mechanism can drive the device to move along the tunnel, and the deflection clamping mechanism ensures the device is stably clamped onto the inner wall of the tunnel, thus improving the performance of concrete pouring for tunnel invert construction.

Description

Technical Field

[0001] This invention relates to the field of concrete pouring technology, specifically a concrete pouring device for tunnel arch construction. Background Technology

[0002] The construction of the tunnel invert arch is a crucial step in ensuring the overall stability of the tunnel. The concrete pouring process is a meticulous operation, emphasizing a cyclical pattern of excavation, support, and pouring. The core principle lies in ensuring the integrity, density, and durability of the concrete structure through pumping, layered symmetrical pouring, thorough vibration, and rigorous curing. Ultimately, this forms a robust, closed-loop structure together with the tunnel arch walls, guaranteeing the long-term safe operation of the tunnel.

[0003] In existing technology, the upper support plate is lifted by a vertical support hydraulic rod, which in turn lifts the side claws and the side support hydraulic rods until the side support hydraulic rods reach the middle height of the tunnel. At this point, the side support hydraulic rods extend, causing the side claws to press tightly against the inner wall of the tunnel, providing support on both sides of the device. Then, concrete is poured and leveled onto the invert lining between the two bottom baffles by connecting the pouring nozzle. The vertical support hydraulic rods retract, causing the lower support plate to lift until the bottom baffles detach from the pouring plane of the invert lining. The vertical support hydraulic rods stop moving, and the device is moved along the tunnel axis along the support rollers and bottom rollers to a new location. The pouring and leveling of the invert lining between the two bottom baffles is repeated. However, existing technology cannot be adapted to different invert curvatures of the tunnel, nor can it be adapted to the vibration treatment of the poured concrete. Therefore, it needs to be improved. Summary of the Invention

[0004] This invention provides a concrete pouring device for tunnel invert construction, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A concrete pouring device for tunnel invert construction includes a main frame. The main frame has two symmetrically arranged feed clamping mechanisms, each equipped with a drive roller mechanism and a deflection clamping mechanism. The main frame also has a moving block mechanism, which in turn has a reciprocating vibration mechanism and a vibration head mechanism. Two symmetrically arranged lifting stop mechanisms are also located on the main frame, each equipped with an elastic displacement plate mechanism. The feed clamping mechanisms drive the drive roller mechanism to deflect and feed. The deflection clamping mechanism assists in clamping the device against the tunnel wall. The moving block mechanisms drive the reciprocating vibration mechanism and the vibration head mechanism to move. The reciprocating vibration mechanism drives the vibration head mechanism to reciprocate and vibrate the concrete. The lifting stop mechanisms adjust the overall height of the elastic displacement plate mechanism.

[0007] As a preferred embodiment of the present invention, the feeding plate mechanism includes a first hydraulic telescopic rod fixed to the main frame, the end of the first hydraulic telescopic rod being fixedly connected to the feeding frame, a first motor being provided inside the feeding frame, the output shaft of the first motor being fixedly connected to a rotating shaft, the rotating shaft passing through the feeding frame, the rotating shaft and the feeding frame being rotatably connected, and the rotating shaft being fixedly connected to a rotating plate.

[0008] As a preferred embodiment of the present invention, the drive roller mechanism includes a drive roller seat fixed to a rotating plate, a second motor is provided on the drive roller seat, the output shaft of the second motor is fixedly connected to the drive wheel, and the drive wheel and the drive roller seat are rotatably connected.

[0009] As a preferred embodiment of the present invention, the deflection chuck mechanism includes two deflection seats fixed on a rotating plate, the deflection seats are rotatably connected to a deflection shaft, the deflection shaft is fixedly connected to a deflection rod, the deflection rod is rotatably connected to a deflection chuck, there are two deflection shafts, the deflection shafts are fixedly connected to synchronous gears, the two synchronous gears mesh with each other, a motor bracket is provided on the rotating plate, the motor bracket is fixedly connected to a third motor, and the output shaft of the third motor is coaxially fixedly connected to one of the synchronous gears.

[0010] As a preferred embodiment of the present invention, the moving block mechanism includes a fourth motor disposed within the main frame, the output shaft of the fourth motor being fixedly connected to a displacement threaded rod, the displacement threaded rod being rotatably connected to the main frame, the displacement threaded rod being threadedly connected to the moving block, and the moving block being slidably connected to the main frame.

[0011] As a preferred embodiment of the present invention, the reciprocating vibration mechanism includes a first fixed frame fixed to a movable block, a fixed shaft fixedly connected to the first fixed frame, a reciprocating swing rod rotatably connected to the fixed shaft, a swing groove provided on the reciprocating swing rod, a second fixed frame fixedly connected to the movable block, a fifth motor provided on the second fixed frame, a rotating frame fixedly connected to the output shaft of the fifth motor, a sixth motor provided inside the rotating frame, an adjusting threaded rod fixedly connected to the output shaft of the sixth motor, a rotating frame rotatably connected to the adjusting threaded rod, an adjusting block threadedly connected to the adjusting threaded rod, a sliding connection between the adjusting block and the rotating frame, a retaining shaft fixedly connected to the adjusting block, the retaining shaft passing through the swing groove, a reciprocating frame slidably connected to the movable block, a lifting shaft fixedly connected to the reciprocating frame, and the lifting shaft passing through the swing groove.

[0012] As a preferred embodiment of the present invention, the vibrating head mechanism includes a telescopic sleeve fixed on a reciprocating frame, a telescopic rod provided inside the telescopic sleeve, a plurality of positioning holes provided on the telescopic rod, a locking bolt threadedly connected to the telescopic sleeve, the locking bolt passing through the positioning holes, and an electric vibrating head fixedly connected to the bottom of the telescopic rod.

[0013] As a preferred embodiment of the present invention, the lifting baffle mechanism includes a fixed plate fixed to the main frame, a second hydraulic telescopic rod fixedly connected to the fixed plate, a lifting frame fixedly connected to the second hydraulic telescopic rod, the lifting frame passing through the fixed plate, the lifting frame and the fixed plate being slidably connected, and the lifting frame being fixedly connected to the fixed baffle.

[0014] As a preferred embodiment of the present invention, the elastic displacement plate mechanism includes a seventh motor mounted on a fixed baffle frame. The output shaft of the seventh motor is fixedly connected to the displacement shaft. The displacement shaft is provided with two symmetrically arranged synchronous threaded grooves. The displacement shaft is threadedly connected to two synchronous plates. An elastic plate is fixedly connected between the two synchronous plates. The elastic plate is fixedly connected to a first lateral baffle and a second lateral baffle.

[0015] The present invention has the following advantages:

[0016] By setting up a feeding clamping mechanism, the drive roller mechanism and the deflection clamping mechanism can be fed and clamped onto the inner wall of tunnels of different sizes. The drive roller mechanism can drive the device to move along the tunnel, and the deflection clamping mechanism can ensure that the device is stably clamped onto the inner wall of the tunnel. The reciprocating vibration mechanism can drive the vibrating head mechanism to reciprocate and rise and fall, thereby realizing the quick insertion and slow withdrawal of the vibrating head mechanism to achieve efficient concrete vibration. The lifting baffle mechanism and the elastic displacement plate mechanism can block the pouring of concrete for invert arches of different curvatures, increasing the performance of concrete pouring for tunnel invert arch construction. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a first-view structural schematic diagram of a concrete pouring device for tunnel arch construction.

[0019] Figure 2 This is a structural schematic diagram from a second perspective of a concrete pouring device for tunnel arch construction.

[0020] Figure 3 This is a schematic diagram of the first part of a concrete pouring device for tunnel arch construction.

[0021] Figure 4 This is a schematic diagram of the second part of a concrete pouring device for tunnel arch construction.

[0022] Figure 5This is a schematic diagram of the third part of a concrete pouring device for tunnel arch construction.

[0023] Figure 6 This is a schematic diagram of the fourth part of a concrete pouring device for tunnel arch construction.

[0024] Figure 7 for Figure 4 A magnified view of region A in the middle.

[0025] Figure 8 This is a schematic diagram of the structure of a concrete pouring device for tunnel invert construction after the synchronous plate has been replaced.

[0026] In the diagram: 1. Main frame; 2. Feeding chuck mechanism; 201. First hydraulic telescopic rod; 202. Feeding frame; 203. First motor; 204. Rotating shaft; 205. Rotating plate; 3. Drive roller mechanism; 301. Drive roller seat; 302. Second motor; 303. Drive wheel; 4. Deflection chuck mechanism; 401. Deflection seat; 402. Deflection shaft; 403. Deflection rod; 404. Deflection chuck; 405. Synchronous gear; 406. Motor bracket; 407. Third motor; 5. Moving block mechanism; 501. Fourth motor; 502. Displacement threaded rod; 503. Moving block; 6. Reciprocating vibration mechanism; 601. First fixed frame; 602. Fixed shaft; 603. Reciprocating swing rod; 604. Swinging slide; 6 05. Second fixed frame; 606. Fifth motor; 607. Rotating frame; 608. Sixth motor; 609. Adjusting threaded rod; 610. Adjusting block; 611. Shaft clamp; 612. Reciprocating frame; 613. Lifting shaft; 7. Vibrating head mechanism; 701. Telescopic sleeve; 702. Telescopic rod; 703. Positioning hole; 704. Locking bolt; 705. Electric vibrating head; 8. Lifting baffle mechanism; 801. Fixed plate; 802. Second hydraulic telescopic rod; 803. Lifting frame; 804. Fixed baffle; 9. Elastic displacement plate mechanism; 901. Seventh motor; 902. Displacement shaft; 903. Synchronous threaded groove; 904. Synchronous plate; 905. Elastic plate; 906. First side baffle; 907. Second side baffle. Detailed Implementation

[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0028] Example 1, please refer to Figures 1-8A concrete pouring device for tunnel invert construction includes a main frame 1. The main frame 1 has two symmetrically arranged feeding clamping mechanisms 2, each equipped with a drive roller mechanism 3 and a deflection clamping mechanism 4. The main frame 1 also has a moving block mechanism 5, which in turn has a reciprocating vibration mechanism 6 and a vibration head mechanism 7. Two symmetrically arranged lifting baffle mechanisms 8 are also provided on the main frame 1, each equipped with an elastic displacement plate mechanism 9. The feeding clamping mechanisms 2 drive the drive roller mechanism 3 to feed and deflect; the deflection clamping mechanism 4 assists in securing the entire device to the tunnel wall; the moving block mechanism 5 drives the reciprocating vibration mechanism 6 and the vibration head mechanism 7 to move; the reciprocating vibration mechanism 6 drives the vibration head mechanism 7 to reciprocate and vibrate the concrete; and the lifting baffle mechanism 8 adjusts the overall height of the elastic displacement plate mechanism 9.

[0029] The feeding plate mechanism 2 includes a first hydraulic telescopic rod 201 fixed to the main frame 1. The output end of the first hydraulic telescopic rod 201 is fixedly connected to the feeding frame 202. A first motor 203 is provided inside the feeding frame 202. The output shaft of the first motor 203 is fixedly connected to a rotating shaft 204. The rotating shaft 204 passes through the feeding frame 202 and is rotatably connected to the feeding frame 202. The rotating shaft 204 is fixedly connected to a rotating plate 205. The driving roller mechanism 3 includes a driving roller seat 301 fixed to the rotating plate 205. A second motor 302 is provided on the driving roller seat 301. The output shaft of the second motor 302 is fixedly connected to a driving wheel 303. The driving wheel 303 and the driving roller seat 301 are rotatably connected.

[0030] Specifically, opening the first hydraulic telescopic rod 201 can drive the feed frame 202 to feed, thereby driving the rotating shaft 204 and rotating plate 205 to feed, which in turn drives the drive roller seat 301 and drive wheel 303 to feed, so that the drive wheel 303 abuts against the inner wall of the tunnel. Opening the first motor 203 can drive the rotating shaft 204 to rotate, thereby driving the rotating plate 205 to rotate, which in turn drives the drive roller seat 301 and drive wheel 303 to rotate. In this way, the angle of the drive wheel 303 can be controlled, so that the device can move along the tunnel or rotate around the tunnel. That is, when the axis of the drive wheel 303 is parallel to the tunnel cross section, the device can move along the tunnel, and when the axis of the drive wheel 303 is perpendicular to the tunnel cross section, the device can rotate around the tunnel.

[0031] The moving block mechanism 5 includes a fourth motor 501 located within the main frame 1. The output shaft of the fourth motor 501 is fixedly connected to a displacement threaded rod 502, which is rotatably connected to the main frame 1. The displacement threaded rod 502 is threadedly connected to a moving block 503, which is slidably connected to the main frame 1. The reciprocating vibration mechanism 6 includes a first fixed frame 601 fixed to the moving block 503. The first fixed frame 601 is fixedly connected to a fixed shaft 602, which is rotatably connected to a reciprocating swing rod 603. The reciprocating swing rod 603 has a swing groove 604. The moving block 503 is fixedly connected to a second fixed frame 605, which has a fifth motor 606. The output shaft of the fifth motor 606 is fixedly connected to a rotating frame 607, which has a sixth motor 608. The output shaft is fixedly connected to the adjusting threaded rod 609, which is rotatably connected to the rotating frame 607. The adjusting threaded rod 609 is threadedly connected to the adjusting block 610, which is slidably connected to the rotating frame 607. The adjusting block 610 is fixedly connected to the retaining shaft 611, which passes through the swing slide groove 604. The moving block 503 is slidably connected to the reciprocating frame 612, which passes through the moving block 503. The reciprocating frame 612 is fixedly connected to the lifting shaft 613, which passes through the swing slide groove 604. The vibrating head mechanism 7 includes a telescopic sleeve 701 fixed to the reciprocating frame 612. The telescopic sleeve 701 contains a telescopic rod 702, which has several positioning holes 703. The telescopic sleeve 701 is threadedly connected to a locking bolt 704, which passes through one of the positioning holes 703. The bottom of the telescopic rod 702 is fixedly connected to an electric vibrating head 705.

[0032] Specifically, turning on the fourth motor 501 can drive the displacement threaded rod 502 to rotate, thereby driving the moving block 503 to move along the axis of the displacement threaded rod 502. The axis of the displacement threaded rod 502 is parallel to the main frame 1. Turning on the fifth motor 606 can drive the rotating frame 607 to rotate, thereby driving the adjusting block 610 and the retaining shaft 611 to rotate. Since the retaining shaft 611 is located in the swing groove 604, it can drive the reciprocating swing rod 603 to swing back and forth around the fixed shaft 602, thereby driving the lifting shaft 613 and the reciprocating frame 612 to move back and forth. At this time, it can drive the electric vibrator head 705 to move up and down, realizing the fast descent and slow rise of the electric vibrator head 705 to ensure sufficient vibration of the concrete. Turning on the sixth motor 608 can drive the adjusting threaded rod 609 to rotate, thereby driving the adjusting block 610 and the retaining shaft 611 to move, thereby adjusting the lifting stroke length of the electric vibrator head 705.

[0033] The lifting baffle mechanism 8 includes a fixed plate 801 fixed to the main frame 1. The fixed plate 801 is fixedly connected to a second hydraulic telescopic rod 802. The second hydraulic telescopic rod 802 is fixedly connected to a lifting frame 803. The lifting frame 803 passes through the fixed plate 801 and is slidably connected to the fixed plate 801. The lifting frame 803 is fixedly connected to a fixed baffle 804. The elastic displacement plate mechanism 9 includes a seventh motor 901 mounted on the fixed baffle 804. The output shaft of the seventh motor 901 is fixedly connected to a displacement shaft 902. The displacement shaft 902 is rotatably connected to the fixed baffle 804. The displacement shaft 902 has two symmetrically arranged synchronous threaded grooves 903. The displacement shaft 902 is threadedly connected to two synchronous plates 904. An elastic plate 905 is fixedly connected between the two synchronous plates 904. The elastic plate 905 is fixedly connected to a first lateral baffle 906 and a second lateral baffle 907.

[0034] Specifically, opening the second hydraulic telescopic rod 802 can drive the lifting frame 803 to rise and fall, thereby driving the fixed stop frame 804 to rise and fall, in order to adjust the height of the fixed stop frame 804.

[0035] Additionally, activating the seventh motor 901 drives the displacement shaft 902 to rotate, which in turn drives the synchronous threaded groove 903 to rotate, thereby adjusting the distance between the two synchronous plates 904 and adjusting the bending state of the elastic plate 905. Since the elastic plate 905 is an elastic plate, it can fit against the surface of the invert arch, thus adapting to the construction of tunnel invert arches with different curvatures. The first lateral baffle 906 and the second lateral baffle 907 are staggered, meaning they are not on the same plane, but they are in contact. This can block the lateral movement of the concrete. At the same time, the separation of the first lateral baffle 906 and the second lateral baffle 907 ensures that when the elastic plate 905 bends, the first lateral baffle 906 and the second lateral baffle 907 will not be bent too much and damaged.

[0036] In embodiments of the present invention, the synchronization plate 904 can be a flat plate structure or an L-shaped structure. The synchronization plate 904 is a detachable and replaceable structure to adapt to different construction environments. In addition, by adjusting the curvature of the elastic plate 905, when the appropriate curvature is achieved, the upper surface of the poured concrete can be scraped to create a curved surface, thus realizing the construction of the invert arch. Furthermore, by placing the synchronization plate 904 against the bottom of the tunnel, concrete can be poured between the two lifting baffle mechanisms 8 and the elastic displacement plate mechanism 9, so that the synchronization plate 904, the first lateral baffle 906 and the second lateral baffle 907 serve as retaining edges to realize the segmented pouring of concrete.

[0037] Example 2, see below. Figures 1-3 and Figure 8 In this embodiment of the invention, the deflection chuck mechanism 4 includes two deflection seats 401 fixed on the rotating plate 205. The deflection seats 401 are rotatably connected to the deflection shaft 402. The deflection shaft 402 is fixedly connected to the deflection rod 403. The deflection rod 403 is rotatably connected to the deflection chuck 404. There are two deflection shafts 402. The deflection shafts 402 are fixedly connected to the synchronous gears 405. The two synchronous gears 405 mesh with each other. The rotating plate 205 is provided with a motor bracket 406. The motor bracket 406 is fixedly connected to a third motor 407. The output shaft of the third motor 407 and one of the synchronous gears 405 are coaxially fixedly connected.

[0038] Specifically, turning on the third motor 407 can drive one of the synchronous gears 405 to rotate, which in turn drives the other synchronous gear 405 to rotate, thereby causing the deflection shaft 402 to rotate. This causes the deflection rod 403 and the deflection chuck 404 to deflect, so that the deflection chuck 404 abuts against the inner wall of the tunnel.

[0039] In the implementation of this invention, the device is first placed inside the tunnel. Then, the feeding plate mechanism 2 is activated, driving the drive roller mechanism 3 and the deflection roller mechanism 4 to feed forward, causing them to press against the inner wall of the tunnel. Activating the drive roller mechanism 3 allows the device to move along the tunnel or deflect around it. Simultaneously, the lifting baffle mechanism 8 and the elastic displacement plate mechanism 9 are activated to descend, thus fitting the device against the bottom of the tunnel. Concrete is then poured into the two lifting baffle mechanisms 8. The reciprocating vibration mechanism 6 is activated, driving the vibrating head mechanism 7 to reciprocate and vibrate, ensuring no air bubbles in the concrete. Activating the moving block mechanism 5 moves the reciprocating vibration mechanism 6 and the vibrating head mechanism 7, thereby achieving vibration treatment of the concrete within the pouring area.

[0040] This invention, through the setting of the feeding clamping plate mechanism 2, can feed and clamp the drive roller mechanism 3 and the deflection clamping wheel mechanism 4 onto the inner wall of tunnels of different sizes. The drive roller mechanism 3 can drive the device to move along the tunnel, and the deflection clamping wheel mechanism 4 can ensure that the device is stably clamped on the inner wall of the tunnel. The reciprocating vibration mechanism 6 can drive the vibrating head mechanism 7 to reciprocate and lift, thereby realizing the quick insertion and slow withdrawal of the vibrating head mechanism 7 to achieve efficient vibration of concrete. The lifting baffle mechanism 8 and the elastic displacement plate mechanism 9 can block the pouring of concrete for invert arches of different curvatures, increasing the performance of concrete pouring for tunnel invert arch construction.

[0041] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A concrete pouring device for tunnel invert construction, comprising a main frame body, characterized in that, The main frame is equipped with two symmetrically arranged feeding clamping mechanisms, each with a drive roller mechanism and a deflection clamping mechanism. The main frame also features a moving block mechanism, which in turn houses a reciprocating vibration mechanism and a vibration head mechanism. Additionally, the main frame has two symmetrically arranged lifting baffle mechanisms, each with an elastic displacement plate mechanism. The feeding clamping mechanisms drive the drive roller mechanism to feed and deflect, while the deflection clamping mechanism assists in clamping the mechanism against the tunnel wall. The moving block mechanisms drive the reciprocating vibration mechanism and the vibration head mechanism to move. The reciprocating vibration mechanism drives the vibration head mechanism to reciprocate and vibrate the concrete. The lifting baffle mechanisms adjust the overall height of the elastic displacement plate mechanism. The moving block mechanism includes a fourth motor located within the main frame. The output shaft of the fourth motor is fixedly connected to a displacement threaded rod. The displacement threaded rod is rotatably connected to the main frame. The displacement threaded rod is threadedly connected to the moving block. The moving block is slidably connected to the main frame. The reciprocating vibration mechanism includes a first fixed frame fixed to a movable block, a fixed shaft fixedly connected to the first fixed frame, a reciprocating swing arm rotatably connected to the fixed shaft, a swing groove provided on the reciprocating swing arm, a second fixed frame fixedly connected to the movable block, a fifth motor provided on the second fixed frame, a rotating frame fixedly connected to the output shaft of the fifth motor, a sixth motor provided inside the rotating frame, an adjusting threaded rod fixedly connected to the output shaft of the sixth motor, a rotating frame rotatably connected to the adjusting threaded rod, an adjusting block threadedly connected to the adjusting threaded rod, a sliding connection between the adjusting block and the rotating frame, a retaining shaft fixedly connected to the adjusting block, the retaining shaft passing through the swing groove, a reciprocating frame slidably connected to the movable block, a lifting shaft fixedly connected to the reciprocating frame, and the lifting shaft passing through the swing groove. The vibrating head mechanism includes a telescopic sleeve fixed on the reciprocating frame, a telescopic rod inside the telescopic sleeve, a number of positioning holes on the telescopic rod, a locking bolt threaded onto the telescopic sleeve, the locking bolt passing through the positioning holes, and an electric vibrating head fixedly connected to the bottom of the telescopic rod. The lifting baffle mechanism includes a fixed plate fixed to the main frame, a second hydraulic telescopic rod fixedly connected to the fixed plate, a lifting frame fixedly connected to the second hydraulic telescopic rod, a lifting frame passing through the fixed plate, a sliding connection between the lifting frame and the fixed plate, and a fixed connection between the lifting frame and the fixed baffle. The elastic displacement plate mechanism includes a seventh motor mounted on a fixed baffle. The output shaft of the seventh motor is fixedly connected to the displacement shaft. The displacement shaft is provided with two symmetrically arranged synchronous threaded grooves. The displacement shaft is threadedly connected to two synchronous plates. An elastic plate is fixedly connected between the two synchronous plates. The elastic plate is fixedly connected to a first lateral baffle and a second lateral baffle.

2. The concrete pouring device for tunnel invert construction according to claim 1, characterized in that, The feeding plate mechanism includes a first hydraulic telescopic rod fixed to the main frame, the end of the first hydraulic telescopic rod is fixedly connected to the feeding frame, a first motor is provided inside the feeding frame, the output shaft of the first motor is fixedly connected to the rotating shaft, the rotating shaft passes through the feeding frame, the rotating shaft and the feeding frame are rotatably connected, and the rotating shaft is fixedly connected to the rotating plate.

3. The concrete pouring device for tunnel invert construction according to claim 2, characterized in that, The drive roller mechanism includes a drive roller seat fixed to a rotating plate, a second motor is provided on the drive roller seat, the output shaft of the second motor is fixedly connected to the drive wheel, and the drive wheel and the drive roller seat are rotatably connected.

4. The concrete pouring device for tunnel invert construction according to claim 2, characterized in that, The deflection chuck mechanism includes two deflection seats fixed on a rotating plate. The deflection seats are rotatably connected to a deflection shaft. The deflection shaft is fixedly connected to a deflection rod. The deflection rod is rotatably connected to a deflection chuck. There are two deflection shafts. The deflection shafts are fixedly connected to synchronous gears. The two synchronous gears mesh with each other. A motor bracket is provided on the rotating plate. The motor bracket is fixedly connected to a third motor. The output shaft of the third motor and one of the synchronous gears are coaxially fixedly connected.

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