A concrete spraying apparatus for tunnel reinforcement construction

Abstract

The application discloses a concrete spraying device for tunnel reinforcement construction and relates to the field of concrete spraying devices.The concrete spraying device comprises a spraying vehicle, a vibrating hopper and a spraying mechanical arm are installed on the spraying vehicle, a driving seat is installed on the spraying mechanical arm, a spraying head is installed on the driving seat, and a main material pipe is installed between the vibrating hopper and the spraying head.It is to be noted that in the embodiment of the application, if the spraying vehicle is blocked, a plurality of unblocking knocking rods knock the main material pipe in sequence, the purpose of unblocking the main material pipe in a ladder mode is achieved, when unblocking fails, the transfer feeding box is moved into the auxiliary vibrating hopper, the auxiliary vibrating hopper is opened to feed, the material is conveyed into the auxiliary spraying head through the auxiliary material pipe and sprayed out, the purpose of uninterrupted feeding is achieved, the problem that the material still continuously feeds after being blocked to cause the material to burst and leak is avoided, and the safe use of the spraying vehicle is protected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of concrete spraying equipment, and particularly relates to a concrete spraying equipment for tunnel reinforcement construction. BACKGROUND

[0002] Wet spraying concrete refers to that cement, coarse and fine aggregates and water are stirred together according to a certain mixing ratio, then the stirred concrete is conveyed to a nozzle through a conveying hose by means of various types of wet spraying machines, and a liquid accelerator is added at the nozzle, compressed air is supplied to form a concrete bundle, and the concrete is sprayed onto a surrounding rock surface from the nozzle. In the process of tunnel construction, because the working area is large and the working position is high, a wet spraying vehicle is now widely used for concrete work.

[0003] When the wet spraying vehicle is working, the concrete is added into a vibrating hopper, the material is conveyed into a main pipe through a feeding pump, and then the material is conveyed into a spraying head through the main pipe, and the spraying head is moved and rotated by a mechanical arm and a driving seat, so that the spraying head sprays the concrete on the working surface. However, in the actual construction process, the pipe is blocked or stopped due to the too large particle size of the aggregate and the insufficient slump, and the residual concrete hardens to cause secondary blockage, so that the spraying vehicle is prone to blockage. In addition, when the pipe is blocked, there is no active measure to deal with it, so that a large amount of material is easily accumulated in a short time, the pipe is abnormally vibrated, the equipment is easily damaged, and even because of the continuous blockage and continuous pressure, the pressure in the pipe is accumulated, the concrete is high-pressure sprayed when it is suddenly opened, and the risk of injury is high. SUMMARY

[0004] The present application aims to provide a concrete spraying equipment for tunnel reinforcement construction to solve the problems in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A concrete spraying equipment for tunnel reinforcement construction comprises a spraying vehicle, a vibrating hopper and a spraying mechanical arm are installed on the spraying vehicle, a driving seat is installed on the spraying mechanical arm, a spraying head is installed on the driving seat, a main pipe is installed between the vibrating hopper and the spraying head, two feeding pumps are installed on the spraying vehicle, and one feeding pump is installed on the vibrating hopper.

[0007] The bearing switching protection device is installed on the spraying vehicle and used for switching the vibrating hopper.

[0008] The spraying vehicle is provided with a ladder unblocking device used for ladder unblocking of the main material pipe.

[0009] Further, in the preferred embodiment of the present application, the bearing switching protection device further comprises a U-shaped limiting frame installed on the bearing pressing frame, and the rotating switching frame is inserted into the U-shaped limiting frame.

[0010] The rotating switching frame is provided with a switching sliding shaft rotatably installed on the cross-shaped frame.

[0011] Further, in the preferred embodiment of the present application, the spraying vehicle is provided with a supporting column, a switching spring groove is formed in the top side of the supporting column, a switching rotating shaft is rotatably installed in the switching spring groove, and the rotating switching frame is installed on the switching rotating shaft.

[0012] The switching rotating shaft is provided with a switching torsional spring installed on the inner wall of the switching spring groove.

[0013] Further, in the preferred embodiment of the present application, the bottom side of the transfer feeding box is provided with a buffer soft sleeve, the bottom side of the buffer soft sleeve is provided with a pressing frame, and the pressing frame is pressed against the vibrating hopper.

[0014] The transfer feeding box is provided with a mounting frame, the pressing frame is slidably installed on the mounting frame, and a buffer spring is connected between the pressing frame and the mounting frame.

[0015] Further, in the preferred embodiment of the present application, a load-bearing spring is installed on the inner wall of the bottom side of the sliding bearing sleeve, and the load-bearing spring is installed on the bearing lower pressing frame;

[0016] The switching horizontal moving groove is provided on the spraying vehicle, and the two sliding bearing sleeves are slidingly installed in the switching horizontal moving groove. The two inner walls of the switching horizontal moving groove are both provided with switches, and the two switches are electrically connected with the vibrating hopper and the auxiliary vibrating hopper, respectively.

[0017] Further, in the preferred embodiment of the present application, the step dredging device further comprises three pulling frames, and three arc-shaped strips are installed on the three synchronous unlocking plates, respectively, and the three arc-shaped strips are installed on the three pulling frames, respectively.

[0018] The mounting seat is provided with three pulling grooves, and the three pulling frames are slidingly installed in the three pulling grooves, respectively.

[0019] One side of the bearing lower pressing frame is provided with a switching frame, and an arc-shaped pressing seat is installed on the switching frame, and the arc-shaped pressing seat is used for sequentially pressing the three arc-shaped strips.

[0020] Further, in the preferred embodiment of the present application, three locking insertion rods are installed on the synchronous unlocking plate, and the three locking insertion rods are inserted into the three dredging seats, respectively.

[0021] The bottom side of the dredging seat is provided with a dredging spring, and the dredging spring is installed on the mounting seat.

[0022] Further, in the preferred embodiment of the present application, a partial blockage blocking device is further included, and the partial blockage blocking device is installed on the spraying mechanical arm, and the partial blockage blocking device is used for blocking the spraying head.

[0023] The partial blockage blocking device comprises a receiving box, and an integrated seat is installed on the driving seat, and the spraying head and the auxiliary spraying head are installed on the integrated seat.

[0024] Further, in the preferred embodiment of the present application, a pulling-down frame is movably installed on the integrated seat, and a supporting spring is connected between the pulling-down frame and the integrated seat.

[0025] The receiving box is installed on the spraying head, a rotating frame is rotatably installed in the receiving box, a blocking sleeve is installed on the rotating frame, and the blocking sleeve is used for blocking the spraying head.

[0026] Further, in the preferred embodiment of the present application, a synchronous rotating shaft is rotatably installed in the material receiving box, the rotating frame is installed on the synchronous rotating shaft, a pulling frame is installed at one end of the synchronous rotating shaft, a positioning frame is installed on the integrated seat, and the pulling frame is movably installed on the positioning frame.

[0027] A pulling hole is formed in the pulling frame, a pulling shaft is movably installed in the pulling hole, and the pulling shaft is rotatably installed on the positioning frame.

[0028] The concrete spraying equipment for tunnel reinforcement construction provided by the present application has the following beneficial effects:

[0029] In the present application, if the spraying vehicle is blocked and fails to be dredged, the U-shaped limiting frame is driven by the load pressing frame to disengage from the rotating switching frame, the rotating switching frame drives the cross-shaped frame to move through the switching slide shaft, the cross-shaped frame drives the two sliding load sleeves to slide horizontally in the switching transverse groove, disengages from one switch and presses the other switch, so that the other feeding pump is started, and the feeding pump on the vibrating hopper is closed; in addition, the movement of the two sliding load sleeves drives the transfer feeding box through the load pressing frame to move, so that the transfer feeding box moves into the auxiliary vibrating hopper, and the auxiliary vibrating hopper is opened for feeding; the material is conveyed to the auxiliary spray head through the auxiliary material pipe and sprayed out, achieving the purpose of uninterrupted feeding, and avoiding the problem of material explosion and leakage caused by continuous feeding after blockage, thereby protecting the safe use of the spraying vehicle.

[0030] Further, in the present application, when blockage occurs during the construction of the spraying vehicle, the weight of the transfer feeding box is gradually increased and moved downward, thereby driving the arc-shaped pressing seats to press the three arc-shaped strips in sequence, and then driving the three synchronous unlocking plates in sequence, so that the plurality of dredging knocking rods knock the main material pipe for dredging, achieving the purpose of stepwise dredging of the main material pipe.

[0031] Further, in the present application, when local blockage occurs in the spraying vehicle, the material in the spraying head accumulates and the weight of the spraying head increases, thereby driving the material receiving box to move downward, and then driving the rotating frame to rotate the blocking sleeve to the position of the spraying head to block the spraying head and recycle the material, thereby avoiding the problem of insufficient pressure of the material sprayed from the spraying head due to blockage, resulting in material waste and pollution of the spraying vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 A three-dimensional structure schematic diagram of the concrete spraying equipment for tunnel reinforcement construction provided by the embodiment of the present application is provided.

[0033] Figure 2A structure schematic diagram of a structure connection of a transfer feed tank of a concrete spraying equipment for tunnel reinforcement construction provided by the embodiment of the present application and a cross-shaped frame;

[0034] Figure 3 A structure schematic diagram of a structure connection of a transfer feed tank of a concrete spraying equipment for tunnel reinforcement construction provided by the embodiment of the present application and a cross-shaped frame;

[0035] Figure 4 A partial sectional structure schematic diagram of a structure connection of a sliding bearing sleeve of a concrete spraying equipment for tunnel reinforcement construction and a bearing lower pressing frame;

[0036] Figure 5 A partial sectional structure schematic diagram of a structure connection of a support column of a concrete spraying equipment for tunnel reinforcement construction and a rotating switching frame;

[0037] Figure 6 A structure schematic diagram of a structure connection of a transfer feed tank of a concrete spraying equipment for tunnel reinforcement construction and a mounting frame;

[0038] Figure 7 A partial structure schematic diagram of a structure connection of a spraying trolley of a concrete spraying equipment for tunnel reinforcement construction and a switch;

[0039] Figure 8 A structure schematic diagram of a structure connection of a dredging seat of a concrete spraying equipment for tunnel reinforcement construction and a synchronous unlocking plate;

[0040] Figure 9 A partial structure schematic diagram of a structure connection of a mounting seat of a concrete spraying equipment for tunnel reinforcement construction and a dredging seat;

[0041] Figure 10 A partial structure schematic diagram of a structure connection of a spraying mechanical arm of a concrete spraying equipment for tunnel reinforcement construction and a material receiving tank;

[0042] Figure 11 A partial structure schematic diagram of a structure connection of a positioning frame of a concrete spraying equipment for tunnel reinforcement construction and a pulling frame;

[0043] Figure 12 A partial structure schematic diagram of a structure connection of a synchronous rotating shaft of a concrete spraying equipment for tunnel reinforcement construction and a rotating frame;

[0044] Figure 13A partial sectional view structure schematic diagram of a rotating switching frame of a concrete spraying equipment for tunnel reinforcement construction provided by the embodiment of the present application is connected with a U-shaped limiting frame and the like structure;

[0045] Figure 14 A partial structure schematic diagram of a mounting seat of a concrete spraying equipment for tunnel reinforcement construction provided by the embodiment of the present application is connected with a dredging knocking rod and the like structure;

[0046] Figure 15 A structure schematic diagram of an arc-shaped strip of a concrete spraying equipment for tunnel reinforcement construction provided by the embodiment of the present application is connected with an arc-shaped extrusion seat and the like structure.

[0047] In the figure: 1-spraying vehicle; 2-vibrating hopper; 3-main pipe; 4-spraying mechanical arm; 5-spraying head; 6-bearing switching protection device; 601-intermediate transfer feeding box; 602-assisted vibrating hopper; 603-assisted pipe; 604-assisted spraying head; 605-sliding bearing sleeve; 606-bearing pressing frame; 607-bearing spring; 608-supporting column; 609-rotating switching frame; 610-cross-shaped frame; 611-switching sliding shaft; 612-U-shaped limiting frame; 613-switching rotating shaft; 614-switching spring groove; 615-switching torsional spring; 616-switch; 617-pressing frame; 618-buffering soft sleeve; 619-mounting frame; 620-buffering spring; 621-switching transverse moving groove; 7-stair dredging device; 701-mounting seat; 702-dredging seat; 703-dredging knocking rod; 704-dredging spring; 705-synchronous unlocking plate; 706-locking plug; 707-pulling groove; 708-pulling frame; 709-arc-shaped strip; 710-adapter frame; 711-arc-shaped extrusion seat; 8-driving seat; 9-partial blockage blocking device; 901-feeding box; 902-pulling frame; 903-supporting spring; 904-synchronous rotating shaft; 905-rotating frame; 906-blocking sleeve; 907-positioning frame; 908-pulling frame; 909-pulling shaft; 910-pulling hole; 911-integrated seat; 10-feeding pump. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, 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 part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0049] The following detailed description of embodiments of the application in the drawings provided is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. Based on the embodiments of the application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the application.

[0050] It should be noted that similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0051] In addition, in the description of the application, it should be noted that the terms "center", "upper", "lower", "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 in which the product of the application is usually placed, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third", and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0052] In addition, the terms "horizontal", "vertical", "perpendicular", and the like do not mean that the components must be absolutely vertical, but can be slightly inclined. For example, "vertical" only means that its direction is more vertical relative to "horizontal", and does not mean that the structure must be completely vertical, but can be slightly inclined.

[0053] In the description of the application, it should also be noted that unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or 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 inside. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0054] Please refer to the drawings in the description Figures 1-15 The concrete spraying device for tunnel reinforcement construction provided by the embodiments of the application comprises a spraying vehicle 1, a vibrating hopper 2 and a spraying mechanical arm 4 are installed on the spraying vehicle 1, a driving seat 8 is installed on the spraying mechanical arm 4, a spraying head 5 is installed on the driving seat 8, a main pipe 3 is installed between the vibrating hopper 2 and the spraying head 5, two feeding pumps 10 are installed on the spraying vehicle 1, and one feeding pump 10 is installed on the vibrating hopper 2.

[0055] Further, please refer to the drawings in the descriptionFigures 2-7 and Figure 13 The concrete spraying equipment for tunnel reinforcement construction provided by the embodiment of the present application further comprises a load switching protection device 6, which is installed on the spraying vehicle 1 and used for switching the vibrating hopper 2. Specifically, the load switching protection device 6 comprises a transfer feeding box 601, one side of the spraying vehicle 1 is provided with an auxiliary vibrating hopper 602, another feeding pump 10 is installed on the auxiliary vibrating hopper 602, an auxiliary spraying head 604 is installed on the spraying mechanical arm 4, the auxiliary spraying head 604 is connected with the auxiliary vibrating hopper 602 through an auxiliary material pipe 603, the transfer feeding box 601 is slidingly installed on the spraying vehicle 1, the transfer feeding box 601 is moved to the auxiliary vibrating hopper 602 for switching feeding, two sliding load sleeves 605 are slidingly installed on the spraying vehicle 1, a load pressing frame 606 is installed on the transfer feeding box 601, the load pressing frame 606 is movably installed in the two sliding load sleeves 605, a cross-shaped frame 610 is installed between the two sliding load sleeves 605, a rotating switching frame 609 is rotatably installed on the spraying vehicle 1, the rotating switching frame 609 is movably installed on the cross-shaped frame 610, and the rotating switching frame 609 is rotated to drive the transfer feeding box 601 to move.

[0056] It should be noted that, in the embodiment of the present application, when the material in the transfer feeding box 601 continuously accumulates, the load pressing frame 606 drives the U-shaped limiting frame 612 to disengage from the rotating switching frame 609, and then the rotating switching frame 609 drives the cross-shaped frame 610 to move through the switching sliding shaft 611, thereby driving the transfer feeding box 601 to move, so that the transfer feeding box 601 moves into the auxiliary vibrating hopper 602, and at the same time, the auxiliary vibrating hopper 602 is opened for feeding, the material is transported to the auxiliary spraying head 604 through the auxiliary material pipe 603 and sprayed out, achieving the purpose of uninterrupted feeding, and avoiding the problem that the material still continuously feeds after being blocked, causing the material to burst and leak, thereby protecting the safe use of the spraying vehicle 1.

[0057] Further specifically, in the embodiment of the present application, the spraying vehicle 1 is provided with a ladder unblocking device 7, which is used for ladder unblocking of the main material pipe 3. The ladder unblocking device 7 comprises a mounting seat 701, a plurality of unblocking knocking rods 703 are installed on the mounting seat 701, an unblocking seat 702 is installed on each of the unblocking knocking rods 703, every three unblocking seats 702 form a group, and a synchronous unlocking plate 705 is inserted into each group of unblocking seats 702. It should be noted that, in the embodiment of the present application, when the spraying vehicle 1 is blocked during construction, the plurality of groups of unblocking seats 702 are sequentially moved downward, and the main material pipe 3 is knocked and unblocked through the plurality of unblocking knocking rods 703, achieving the purpose of ladder unblocking of the main material pipe 3.

[0058] Please continue to refer to the description of the drawings Figures 2-7and Figure 13 Further, the concrete spraying device for tunnel reinforcement construction provided by the embodiment of the present application further comprises a U-shaped limiting frame 612, which is installed on the load-bearing lower pressing frame 606, and the rotating switching frame 609 is inserted in the U-shaped limiting frame 612.

[0059] In addition, the rotating switching frame 609 is rotatably installed with a switching sliding shaft 611, which is slidingly installed in the cross-shaped frame 610. It should be noted that in the embodiment of the present application, when the load of the intermediate transfer feed bin 601 is too heavy, the load-bearing lower pressing frame 606 drives the U-shaped limiting frame 612 to disengage from the rotating switching frame 609, so as to achieve the purpose of automatically unlocking the rotating switching frame 609.

[0060] Further specifically, in the embodiment of the present application, the spraying vehicle 1 is installed with a supporting column 608, the top side of the supporting column 608 is provided with a switching elastic groove 614, the switching elastic groove 614 is rotatably installed with a switching rotating shaft 613, and the rotating switching frame 609 is installed on the switching rotating shaft 613; the switching rotating shaft 613 is installed with a switching torsional spring 615, and the switching torsional spring 615 is installed on the inner wall of the switching elastic groove 614. It should be noted that in the embodiment of the present application, when the load of the intermediate transfer feed bin 601 is too heavy, the load-bearing lower pressing frame 606 is unlocked, at this time, under the rebounding force of the switching torsional spring 615, the switching rotating shaft 613 drives the rotating switching frame 609 to rotate, the rotating switching frame 609 drives the cross-shaped frame 610 to move through the switching sliding shaft 611, so as to drive the two sliding load-bearing sleeves 605 to move, and then drive the intermediate transfer feed bin 601 to move into the auxiliary vibrating hopper 602, at the same time, the auxiliary vibrating hopper 602 is opened to feed, the material is conveyed into the auxiliary spray head 604 through the auxiliary material pipe 603 and sprayed out, so as to achieve the purpose of uninterrupted feeding.

[0061] Please continue to refer to the description of the drawings Figures 2-7 and Figure 13 Further specifically, in the embodiment of the present application, the bottom side of the intermediate transfer feed bin 601 is installed with a buffer soft sleeve 618, the bottom side of the buffer soft sleeve 618 is installed with an abutting frame 617, and the abutting frame 617 abuts against the vibrating hopper 2; in addition, the intermediate transfer feed bin 601 is installed with a mounting frame 619, the abutting frame 617 is slidingly installed on the mounting frame 619, and the abutting frame 617 and the mounting frame 619 are connected with a buffer spring 620. It should be noted that in the embodiment of the present application, when the vibrating hopper 2 vibrates to feed, the abutting frame 617 is vibrated and moves on the mounting frame 619, at the same time, drives the buffer spring 620 to be stressed, so that under the rebounding force of the buffer spring 620, the abutting frame 617 abuts against the vibrating hopper 2, so as to ensure that the material does not leak during feeding.

[0062] Further, the spraying vehicle 1 is provided with a switching horizontal moving groove 621, and the two sliding bearing sleeves 605 are slidingly installed in the switching horizontal moving groove 621. The two sides of the switching horizontal moving groove 621 are provided with switches 616, and the two switches 616 are electrically connected with the vibrating hopper 2 and the auxiliary vibrating hopper 602 respectively. It should be noted that in the embodiment of the present application, the transfer feeding box 601 moves downward to drive the bearing lower pressing frame 606 to move, and the bearing lower pressing frame 606 moves in the two sliding bearing sleeves 605, and the two bearing springs 607 are contracted under stress until the bearing lower pressing frame 606 is unlocked, and then the two sliding bearing sleeves 605 horizontally slide in the switching horizontal moving groove 621, and are separated from one switch 616 and press the other switch 616, so that the other feeding pump 10 is started, and the auxiliary vibrating hopper 602 is opened, thereby realizing the purpose of uninterrupted feeding.

[0063] Please refer to the drawings in the specification Figure 2 and Figures 8-9 and Figures 13-15 Further, the concrete spraying equipment for tunnel reinforcement construction provided by the embodiment of the present application further comprises three pulling frames 708, and the three synchronous unlocking plates 705 are provided with arc-shaped strips 709, and the three arc-shaped strips 709 are installed on the three pulling frames 708 respectively.

[0064] Further, the mounting seat 701 is provided with three pulling grooves 707, and the three pulling frames 708 are slidingly installed in the three pulling grooves 707 respectively. One side of the bearing lower pressing frame 606 is provided with a switching frame 710, and the switching frame 710 is provided with an arc-shaped pressing seat 711, and the arc-shaped pressing seat 711 is used for pressing the three arc-shaped strips 709 in sequence. It should be noted that in the embodiment of the present application, when the transfer feeding box 601 moves downward under stress due to blockage, the bearing lower pressing frame 606 moves through the switching frame 710 to drive the arc-shaped pressing seat 711 to move, the arc-shaped pressing seat 711 first presses one arc-shaped strip 709 to move, so that the arc-shaped strip 709 drives the pulling frame 708 to move, the pulling frame 708 moves horizontally in the pulling groove 707, and at the same time, the arc-shaped strip 709 moves to drive the synchronous unlocking plate 705 to move, thereby realizing the purpose of knocking the main pipe 3, and when the main pipe 3 is continuously blocked, the other two synchronous unlocking plates 705 are driven in sequence, thereby realizing the purpose of step-by-step dredging of the main pipe 3.

[0065] Further specifically, in the embodiment of the present application, the synchronous unlocking plate 705 is provided with three locking insertion rods 706, which are respectively inserted into the three dredging seats 702; the dredging spring 704 is installed at the bottom side of the dredging seat 702 and is installed on the mounting seat 701. It should be noted that, in the embodiment of the present application, when the transit feeding box 601 is forced to move downward due to blockage, the locking insertion rod 706 is separated from the dredging seat 702, and then under the pulling force of the dredging spring 704, the dredging seat 702 drives the dredging knocking rod 703 to move downward, knocking the main pipe 3, so as to achieve the purpose of dredging the main pipe 3 by knocking.

[0066] Please refer to the drawings in the specification Figure 2 and Figures 10-12 Further, the concrete spraying device for tunnel reinforcement construction provided by the embodiment of the present application further comprises a local blockage blocking device 9, which is installed on the spraying mechanical arm 4 and is used for blocking the spraying head 5; specifically, the local blockage blocking device 9 comprises a receiving box 901, and the integrated seat 911 is installed on the driving seat 8, and the spraying head 5 and the auxiliary spraying head 604 are both installed on the integrated seat 911. It should be noted that, in the embodiment of the present application, the local blockage blocking device 9 is provided to block the spraying head 5 when the spraying head 5 is locally blocked, thereby achieving the recycling of the material.

[0067] Further specifically, in the embodiment of the present application, the integrated seat 911 is movably provided with a pulling-down frame 902, and the pulling-down frame 902 and the integrated seat 911 are connected with a supporting spring 903; in addition, the receiving box 901 is installed on the spraying head 5, the rotating frame 905 is rotatably installed in the receiving box 901, the material blocking sleeve 906 is installed on the rotating frame 905, and the material blocking sleeve 906 is used for blocking the spraying head 5. It should be noted that, in the embodiment of the present application, when the spraying head 5 is blocked and the material pressure is insufficient, the spraying head 5 is blocked by the material blocking sleeve 906, and the material is recycled, which can not only avoid waste of the material, but also avoid pollution of the spraying vehicle 1 by the material.

[0068] Please refer to the drawings in the specification Figure 2 and Figures 10-12 More specifically, in the embodiment of the present application, the receiving box 901 is rotatably provided with a synchronous rotating shaft 904, the rotating frame 905 is installed on the synchronous rotating shaft 904, one end of the synchronous rotating shaft 904 is provided with a pulling frame 908, the integrated seat 911 is provided with a positioning frame 907, and the pulling frame 908 is movably installed on the positioning frame 907.

[0069] In addition, the pulling frame 908 is provided with a pulling hole 910, and a pulling shaft 909 is movably installed in the pulling hole 910 and rotatably installed on the positioning frame 907. It should be noted that, in the embodiment of the present application, when the weight of the spraying head 5 increases and drives the receiving box 901 to move downward, the pulling frame 908 is pulled by the pulling shaft 909, thereby driving the pulling frame 908 to rotate, so that the pulling frame 908 drives the synchronous rotating shaft 904 to rotate, the synchronous rotating shaft 904 drives the rotating frame 905 to rotate, so that the rotating frame 905 drives the blocking sleeve 906 to rotate, thereby achieving the purpose of automatically rotating the blocking sleeve 906 to the position of the spraying head 5.

[0070] In summary, the working principle of the concrete spraying equipment for tunnel reinforcement construction provided by the embodiment of the present application is as follows:

[0071] When the spraying vehicle 1 is blocked during construction, the material in the vibrating hopper 2 is accumulated, thereby increasing the material in the transfer feeding box 601 and increasing the weight of the transfer feeding box 601, which moves downward, drives the bearing lower pressing frame 606 to move, and the bearing lower pressing frame 606 moves in the two sliding bearing sleeves 605, and the two bearing springs 607 are stressed and contracted. The bearing lower pressing frame 606 moves through the adapter frame 710 to drive the arc-shaped extrusion seat 711 to move, which first extrudes an arc-shaped strip 709 to move, so that the arc-shaped strip 709 drives the pulling frame 708 to move, and the pulling frame 708 moves horizontally in the pulling slot 707. At the same time, the arc-shaped strip 709 moves to drive the synchronous unlocking plate 705 to move, and the three locking rods 706 are separated from the three dredging seats 702, thereby driving the three dredging seats 702 to move downward under the back-pulling force of the three dredging springs 704, and knocking the main material pipe 3, thereby achieving the first knocking dredging of the main material pipe 3. In addition, if the main material pipe 3 is continuously blocked, the other two synchronous unlocking plates 705 are sequentially driven to move, so that the remaining two groups of dredging seats 702 are sequentially moved downward, and the main material pipe 3 is knocked and dredged by the plurality of dredging knocking rods 703, thereby achieving the purpose of step-by-step dredging of the main material pipe 3, so that the spraying vehicle 1 can achieve the purpose of automatic dredging when blocked.

[0072] Further, if the main tube 3 cannot be dredged, the load bearing lower press frame 606 drives the U-shaped limiting frame 612 to disengage the rotating switching frame 609, at this time, under the resilience of the switching torsion spring 615, the switching rotating shaft 613 drives the rotating switching frame 609 to rotate, the rotating switching frame 609 drives the cross-shaped frame 610 to move through the switching sliding shaft 611, so that the cross-shaped frame 610 drives the two sliding bearing sleeves 605 to slide horizontally in the switching horizontal moving groove 621, disengaging one switch 616 and pressing the other switch 616, so that the other feeding pump 10 starts, and then the feeding pump 10 on the vibrating hopper 2 is closed, the two sliding bearing sleeves 605 move through the load bearing lower press frame 606 to drive the intermediate transfer feeding box 601 to move, so that the intermediate transfer feeding box 601 moves into the auxiliary vibrating hopper 602, at the same time, the auxiliary vibrating hopper 602 is opened for feeding, the material is conveyed into the auxiliary spray head 604 through the auxiliary tube 603 and sprayed out, realizing uninterrupted discharging, and avoiding the problem that the material still continuously feeds after the material is blocked, causing the material to burst and leak, protecting the safe use of the spray vehicle 1;

[0073] Further, when local blockage occurs during the construction of the spray vehicle 1, the material in the spray head 5 accumulates and the weight of the spray head 5 increases, driving the receiving box 901 to move downward, the spray head 5 moves downward to drive the pull frame 902 to move, and the supporting spring 903 is stressed, at this time, the pull frame 908 is pulled by the pulling shaft 909, thereby driving the pull frame 908 to rotate, and then the pull frame 908 drives the synchronous rotating shaft 904 to rotate, the synchronous rotating shaft 904 drives the rotating frame 905 to rotate, so that the rotating frame 905 drives the material blocking sleeve 906 to rotate, blocking the spray head 5, thereby avoiding the problem that the material pressure sprayed by the spray head 5 is not enough due to blockage, causing material waste and pollution of the spray vehicle 1.

[0074] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A concrete spraying device for tunnel reinforcement construction, characterized in that, It includes a spraying vehicle, on which a vibrating hopper and a spraying robotic arm are installed. A drive seat is installed on the spraying robotic arm, and a spraying head is installed on the drive seat. A main material pipe is installed between the vibrating hopper and the spraying head. Two feeding pumps are installed on the spraying vehicle, and one feeding pump is installed on the vibrating hopper. It also includes a load switching protection device, which is installed on the spraying vehicle and is used to switch the vibrating hopper. The load switching protection device includes a transfer feed box. An auxiliary vibrating hopper is installed on one side of the spraying vehicle, and another feed pump is installed on the auxiliary vibrating hopper. An auxiliary nozzle is installed on the spraying robot arm. An auxiliary material pipe is connected between the auxiliary nozzle and the auxiliary vibrating hopper. The transfer feed box is slidably installed on the spraying vehicle. The transfer feed box moves to the auxiliary vibrating hopper for switching the feed. Two sliding bearing sleeves are slidably installed on the spraying vehicle. A bearing lowering frame is installed on the transfer feed box. The bearing lowering frame is movably installed in the two sliding bearing sleeves, and a cross-shaped frame is installed between the two sliding bearing sleeves. A rotating switching frame is rotatably installed on the spraying vehicle. The rotating switching frame is movably installed on the cross-shaped frame. The rotation of the rotating switching frame is used to drive the transfer feed box to move. The spray vehicle is equipped with a stepped unblocking device, which is used to unblock the main material pipe in a stepped manner. The stepped unblocking device includes a mounting base, on which multiple unblocking tapping rods are mounted. Each of the multiple unblocking tapping rods is equipped with an unblocking seat. Every three unblocking seats form a group, and a synchronous unlocking plate is inserted into each group of unblocking seats.

2. The concrete spraying equipment for tunnel reinforcement construction according to claim 1, characterized in that, The load switching protection device also includes a U-shaped limiting frame, which is installed on the load lowering frame, and the rotating switching frame is inserted into the U-shaped limiting frame; A switching slide shaft is rotatably mounted on the rotating switching frame, and the switching slide shaft is slidably mounted inside the cross-shaped frame.

3. A concrete spraying device for tunnel reinforcement construction according to claim 2, characterized in that, The spray vehicle is equipped with a support column, and a switching slot is provided on the top side of the support column. A switching shaft is rotatably installed in the switching slot, and the rotating switching frame is installed on the switching shaft. A switching torsion spring is installed on the switching shaft, and the switching torsion spring is installed on the inner wall of the switching spring groove.

4. A concrete spraying device for tunnel reinforcement construction according to claim 3, characterized in that, A buffer sleeve is installed on the bottom side of the transfer feed box, and a clamping frame is installed on the bottom side of the buffer sleeve, with the clamping frame abutting against the vibrating hopper. The transfer feed box is equipped with a mounting frame, the clamping frame is slidably mounted on the mounting frame, and a buffer spring is connected between the clamping frame and the mounting frame.

5. A concrete spraying device for tunnel reinforcement construction according to claim 4, characterized in that, A load-bearing spring is installed on the bottom inner wall of the sliding bearing sleeve, and the load-bearing spring is installed on the bearing lower pressure frame; The spraying vehicle is provided with a switching transverse groove, and the two sliding bearing sleeves are slidably installed in the switching transverse groove. Switches are installed on the inner walls of both sides of the switching transverse groove, and the two switches are electrically connected to the vibrating hopper and the auxiliary vibrating hopper, respectively.

6. A concrete spraying device for tunnel reinforcement construction according to claim 1, characterized in that, The stepped unblocking device also includes three pull-out brackets, and each of the three synchronous unlocking plates is equipped with an arc-shaped strip, which is respectively installed on the three pull-out brackets; The mounting base is provided with three pull-out slots, and the three pull-out brackets are slidably installed in the three pull-out slots respectively; A transfer frame is installed on one side of the bearing pressure frame, and an arc-shaped extrusion seat is installed on the transfer frame. The arc-shaped extrusion seat is used to extrude the three arc-shaped strips in sequence.

7. A concrete spraying device for tunnel reinforcement construction according to claim 6, characterized in that, The synchronous unlocking plate is equipped with three locking rods, which are respectively inserted into the three unblocking seats; A drain spring is installed on the bottom side of the drain seat, and the drain spring is mounted on the mounting base.

8. A concrete spraying device for tunnel reinforcement construction according to claim 1, characterized in that, It also includes a partial blockage blocking device, which is installed on the spraying robotic arm and is used to block the spraying head; The local blockage blocking device includes a receiving box, an integrated base is mounted on the drive seat, and the spray head and the auxiliary spray head are both mounted on the integrated base.

9. A concrete spraying device for tunnel reinforcement construction according to claim 8, characterized in that, A pull-down bracket is movably mounted on the integrated base, and a support spring connects the pull-down bracket and the integrated base; The receiving box is installed on the spray head, and a rotating frame is rotatably installed inside the receiving box. A baffle sleeve is installed on the rotating frame to block the spray head.

10. A concrete spraying device for tunnel reinforcement construction according to claim 9, characterized in that, A synchronous rotating shaft is rotatably installed inside the receiving box. The rotating frame is installed on the synchronous rotating shaft. A pulling frame is installed at one end of the synchronous rotating shaft. A positioning frame is installed on the integrated base. The pulling frame is movably installed on the positioning frame. The pulling frame has a pulling hole, and a pulling shaft is movably installed in the pulling hole. The pulling shaft is rotatably installed on the positioning frame.

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