Relief control unwinding anti-falling device for tunnel waterproof plate construction

Abstract

The invention discloses a relief-control unwinding anti-falling device for tunnel waterproof plate construction. The relief-control unwinding anti-falling device comprises a trolley, an arc-shaped rail and a laying and hanging assembly, the laying and hanging assembly comprises a cage frame and a supporting shaft, the supporting shaft is connected with the two ends of a longitudinal supporting frame, the two ends of the longitudinal supporting frame are connected to the two walking trolleys respectively, and the walking trolleys run on the arc-shaped track. An unwinding motor and an unwinding roller are arranged at the bottom of the cage frame, and the unwinding motor drives a waterproof plate roll in the cage frame to roll and unwind through the unwinding roller; a waterproof plate outlet is formed in one side of the cage frame; the longitudinal supporting frame is provided with a plurality of relaxation degree control assemblies which are arranged at intervals in the length direction of the cage frame, each relaxation degree control assembly comprises a supporting push rod, a linear telescopic mechanism and a pressing roller, the supporting push rods and the linear telescopic mechanisms are hinged to the longitudinal supporting frame, the pressing rollers are installed at the front ends of the supporting push rods, and the front ends of the linear telescopic mechanisms are hinged to the supporting push rods. The automatic unwinding and anti-falling effects of the waterproof plate can be achieved, the laying and hanging construction efficiency of the waterproof plate is improved, and the efficient and high-quality tunnel waterproof construction requirement is met.

Description

Technical Field

[0001] The present invention belongs to the technical field of tunnel engineering, and particularly relates to a device for preventing the release and detachment of waterproof plates during tunnel waterproof plate construction and controlling the release speed. Background Art

[0002] In tunnel construction, the laying of waterproof plates is a crucial link, and its laying quality directly affects the waterproof effect and service life of the tunnel. Traditional methods of hanging waterproof plates mostly rely on manual operations. Workers need to manually carry, unfold the waterproof plates and fix them on the tunnel wall. This method is inefficient and labor-intensive. With the continuous expansion of the scale of tunnel construction and the increasing construction requirements, the existing waterproof plate trolley hanging devices have emerged as the times require. However, most of the current hanging devices on the market, although reducing the human burden to a certain extent, still have many deficiencies. For example, during the process of releasing the waterproof plate, it is difficult to achieve precise and stable automatic control, and problems such as uneven release speed and jamming often occur, affecting the continuity and flatness of the laying. Moreover, the anti-detachment protection measures for waterproof plates are not perfect enough. In a complex tunnel construction environment, due to vibration, collision or other interference factors, the waterproof plates are prone to slipping off the hanging device or detaching from the fixed points, resulting in construction interruption, not only wasting materials, but also possibly damaging the completed parts, increasing the repair cost and time, and unable to meet the requirements of efficient and high-quality tunnel waterproof construction. Summary of the Invention

[0003] The purpose of the present invention is to provide a device for preventing the release and detachment of waterproof plates during tunnel waterproof plate construction and controlling the release speed, so as to achieve the automatic release and anti-detachment effect of waterproof plates, improve the construction efficiency of waterproof plate hanging, and meet the requirements of efficient and high-quality tunnel waterproof construction.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: a device for preventing the release and detachment of waterproof plates during tunnel waterproof plate construction and controlling the release speed, including a trolley, two arc-shaped tracks arranged on the trolley, and a hanging component; characterized in that: the hanging component includes a cage frame and support shafts connected to both ends of the cage frame, the support shafts at both ends are connected to both ends of a longitudinal support frame, and both ends of the longitudinal support frame are respectively connected to two traveling trolleys, and the traveling trolleys run on the arc-shaped tracks; A release motor and a release roller mounted on the release motor are arranged at the bottom of the cage frame, and the release motor drives the waterproof plate coil in the cage frame to roll and release through the release roller; a waterproof plate outlet is arranged on one side of the cage frame; A plurality of tension control components are arranged on the longitudinal support frame at intervals along the length direction of the cage frame. The tension control components are located on one side of the outlet of the waterproof board, and each tension control component includes a support push rod, a linear telescopic mechanism, and a pressure roller. One end of the support push rod and one end of the linear telescopic mechanism are respectively hinged on the longitudinal support frame. A freely rotatable pressure roller is installed at the other end of the support push rod, and the other end of the linear telescopic mechanism is hinged on the rod body of the support push rod.

[0005] The beneficial effects are as follows: In the present invention, during the movement of the laying and hanging assembly along the arc track with the traveling trolley, the unwinding motor drives the waterproof board coil in the cage frame to roll and unwind through the unwinding roller, thereby realizing the automatic unwinding of the waterproof board. At the same time, the support push rod in the tension control component presses the waterproof board against the tunnel wall, and can also prevent the waterproof board from falling off, facilitating the construction personnel to fix the waterproof board in time, thus realizing the automatic laying and anti - detachment effect of the waterproof board, improving the construction efficiency of waterproof board laying, and meeting the requirements of high - efficiency and high - quality tunnel waterproof construction.

[0006] In addition, the linear telescopic mechanism in the tension control component can control the pitching angle of the support push rod through telescoping. For tunnel construction problems such as over - excavation and under - excavation on the tunnel wall, adjust the telescoping of the linear telescopic mechanism at the corresponding position, so that the corresponding support push rod can keep close to the tunnel wall, avoid the waterproof board from falling off, and ensure the laying effect of the waterproof board on the tunnel wall.

[0007] Furthermore, the cage frame includes two relatively arranged end plates, multiple longitudinal axes, and a plurality of circumferential skeletons; the multiple longitudinal axes are arranged at intervals along the circumferential direction, and both ends of the longitudinal axes are respectively fixed on the inner sides of the two end plates; the plurality of circumferential skeletons are arranged at intervals along the length direction of the longitudinal axes, and shaft holes for the longitudinal axes to pass through are provided on the circumferential skeletons. A notch is left on one side of the circumferential skeleton as the outlet of the waterproof board; the support shaft is fixed on the outer side of the end plate.

[0008] The beneficial effects are as follows: The main structure of the cage frame is given, which is simple and light, and can not only support the waterproof board coil but also facilitate the unwinding of the waterproof board.

[0009] Still further, the circumferential skeleton includes a plurality of arc - shaped frames, and the shaft holes are provided on the arc - shaped frames.

[0010] The beneficial effects are as follows: A structural form of the circumferential skeleton is given, which is convenient for implementation.

[0011] Even further, one of the arc - shaped frames is an arc - shaped flipping frame. The two ends of the arc - shaped flipping frame are respectively a rotating end and a movable end. The rotating end and the movable end are respectively connected to two adjacent longitudinal axes, wherein the rotating end is rotatably connected to the longitudinal axis, and the movable end is detachably connected to the longitudinal axis.

[0012] Its beneficial effects are as follows: By flipping the arc-shaped flipping frame outward, the circumferential skeleton can be opened, and thus a relatively wide opening can be opened on the cage frame, facilitating the hoisting of the waterproof sheet material roll into the cage frame. After the arc-shaped flipping frame is flipped inward and connected to the longitudinal axis, it can ensure that the waterproof sheet material roll will not fall out of the cage frame during the construction process.

[0013] Furthermore, a connecting arm is installed on the longitudinal axis connected to the movable end of the arc-shaped flipping frame. One end of the connecting arm is connected to the arc-shaped flipping frame through a detachable connecting piece, and the other end of the connecting arm is provided with a guide wheel, which is located on one side of the waterproof sheet outlet; another guide wheel is provided on the other side of the waterproof sheet outlet, and the two guide wheels are arranged oppositely.

[0014] Its beneficial effects are as follows: By providing the connecting arm, it is convenient to realize the detachable connection with the arc-shaped flipping frame through detachable connecting pieces such as pin shafts and bolts; and by providing guide wheels on both sides of the waterproof sheet outlet, the unwinding of the waterproof sheet can be guided, reducing the unwinding resistance.

[0015] Preferably, a plurality of freely rolling rollers are further provided on the arc-shaped frame, and the wheel rims of the rollers protrude from the inner diameter surface of the arc-shaped frame.

[0016] Its beneficial effects are as follows: The rollers on the arc-shaped frame can rotate when contacting the waterproof sheet material roll, reducing the friction between the waterproof sheet material roll and the cage frame, and avoiding the wear of the waterproof sheet material roll during rotation.

[0017] Specifically, two unwinding motors are in a group and are oppositely arranged at the lower part of the cage frame; at least one group of unwinding motors is provided on the cage frame.

[0018] Its beneficial effects are as follows: Two unwinding motors being oppositely arranged as a group can avoid the situation of tilting when driving the waterproof sheet material roll to rotate, ensure that the waterproof sheet will not be skewed when being laid on the tunnel wall, and thus ensure the final waterproof effect.

[0019] Specifically, the longitudinal support frame includes a longitudinal beam, a bottom frame fixed at both ends of the longitudinal beam, and a hanging component mounting seat fixed on the bottom frame. The bottom frame is fixed on the walking trolley; the support shaft on the cage frame is connected to the hanging component mounting seat.

[0020] Its beneficial effects are as follows: It gives the connection structure between the specific hanging component and the walking trolley.

[0021] Specifically, a plurality of hinge seats are provided on the longitudinal beam, and the plurality of hinge seats are arranged at intervals along the length of the longitudinal beam. Each group of hinge seats is used to install the support push rod and the linear telescopic mechanism of the tension control component.

[0022] Its beneficial effects are as follows: The tension control component is connected to the longitudinal beam on one side of the hanging component, making the structure more compact and concise.

[0023] The structure of the present invention further includes a traction component, which includes a driving mechanism, a traction member, a reversing wheel, and a supporting wheel. The driving mechanism and the reversing wheel are fixed on the trolley, the reversing wheel is located on the winding path of the traction member, and the supporting wheels are arranged at intervals along the arc-shaped track; the middle part of the traction member is wound around the driving wheel at the output end of the driving motor, and both ends of the traction member respectively bypass each reversing wheel and are connected to the opposite sides of the walking trolley or the longitudinal support frame through the support of the supporting wheels.

[0024] Its beneficial effects are as follows: The movement of the walking trolley on the arc-shaped track is realized through the traction of the traction component on the walking trolley, and then the waterproof board hanging operation of the hanging component along the arc-shaped track is realized.

[0025] The beneficial effects of the present invention are as follows: 1. Compared with the traditional method of relying on a large number of manpower to cooperate in a fixed position to control the waterproof board, the present invention realizes the automatic unwinding of the waterproof board through the cooperation of the hanging component and the walking trolley. During the hanging operation, as the hanging component moves forward steadily along the arc-shaped track, the unwinding motor runs to drive the unwinding roller to rotate. Then, under the frictional force of the unwinding roller, the waterproof board coil in the cage of the hanging component rolls orderly and unfolds outward. This automatic unwinding method greatly reduces manual intervention, improves the continuity and efficiency of the waterproof board laying, effectively avoids problems such as unsmooth and uneven board laying caused by improper manual operation, and ensures the accuracy and quality of the waterproof board laying.

[0026] 2. The supporting push rod in the tension control component can reliably press the waterproof board against the tunnel wall, effectively preventing the waterproof board from falling off due to vibration, shaking or other external force factors in a complex construction environment, strongly guaranteeing the safety and stability of the waterproof board laying operation, reducing the construction risk and cost, and providing a solid technical guarantee for the high-quality completion of the tunnel waterproof project.

[0027] In addition, when overexcavation or under-excavation occurs on the tunnel wall, depressions or protrusions will be formed at the overexcavated or under-excavated positions, and the flatness of the tunnel wall is poor. For example, when a depression due to overexcavation appears on the tunnel wall, it is difficult to press the waterproof board completely against the tunnel wall; when a protrusion due to under-excavation appears on the tunnel wall, the protrusion will hinder the fitting of the waterproof board to the tunnel wall. Both of these situations will affect the waterproof board hanging operation. Therefore, the present invention controls the pitching angle of the supporting push rod by the telescopic movement of the adjusting oil cylinder or other linear telescopic mechanisms in the tension control component, so that the supporting push rod can also reliably press the waterproof board against the tunnel wall at the overexcavated or under-excavated positions on the tunnel wall, that is, the adjustment of the tension is realized, which is the so-called "tension control" in the present invention. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 The front view of the overall structure of the present invention; Figure 2 is Figure 1 the partial enlarged view at position A in Figure 3 The side view of the overall structure of the present invention; Figure 4 The schematic structural diagram of the laying and hanging assembly in the present invention; Figure 5 The schematic structural diagram of the circumferential skeleton in the laying and hanging assembly of the present invention in the closed state; Figure 6 The schematic structural diagram of the circumferential skeleton in the laying and hanging assembly of the present invention in the opened state; Figure 7 The schematic diagram of the positional relationship of the unwinding motor on the laying and hanging assembly relative to the circumferential skeleton in the present invention; Figure 8 The top view structural diagram of the longitudinal support frame in the present invention; Figure 9 The end view of the longitudinal support frame in the present invention; Figure 10 The schematic diagram of the connection relationship between the laying and hanging assembly and the traveling trolley in the present invention; Figure 11 The schematic structural diagram of the traction assembly in the present invention; Figure 12 The schematic structural diagram of the drive motor of the traction assembly in the present invention; Reference numerals in the figure: 100, trolley; 101, transverse support beam; 102, support column; 103, fixed beam; 104, sleeve. 200, arc track; 201, flange. 300, laying and hanging assembly; 301, circumferential skeleton; 302, longitudinal axis; 303, roller; 304, unwinding motor; 305, unwinding roller; 306, front end plate; 307, rear end plate; 308, support shaft; 309, arc fixing frame; 310, arc turning frame; 311, connecting arm; 312, guide wheel; 313, shaft hole; 314, waterproof plate outlet; 315, cage frame. 400, traveling trolley; 401, vehicle body; 402, upper row of rollers; 403, lower row of rollers. 500, Tension Control Component, 501, Support Push Rod, 502, Adjusting Oil Cylinder, 503, Pressing Roller; 600, Traction Component, 601, Hydraulic Motor, 602, Chain, 603, Reversing Sprocket, 604, Counterweight Block, 605, Support Sprocket; 700, Lifting Mechanism; 800, Longitudinal Support Frame, 801, Longitudinal Beam, 802, Underframe, 803, Installation Seat for Laying and Hanging Component, 804, Fixed Hole, 805, Chain Link Arm, 806, Push Rod Hinge Seat, 807, Oil Cylinder Hinge Seat; 900, Waterproof Sheet Coil, 901, Waterproof Sheet. Detailed Implementation Manner

[0030] The present invention will be further described in detail below in conjunction with the drawings and embodiments, but it is not used as a basis for any limitation to the invention.

[0031] As Figures 1-3 shown, a tunnel waterproof sheet construction tension control, unwinding and anti - detachment device includes a trolley 100, an arc - shaped track 200, a laying and hanging component 300, and a tension control component 500.

[0032] The arc - shaped track 200 is erected on the upper part of the trolley 100 and is adapted to the tunnel arch. Two arc - shaped tracks 200 are arranged on the trolley 100 and are spaced along the longitudinal direction of the trolley 100, that is, the traveling direction of the trolley 100 in the tunnel. Flanges are provided on both sides of the top of the arc - shaped track 200, and the upper and lower surfaces of the flanges serve as the running track surfaces for the laying and hanging component 300 to perform waterproof sheet laying operations along the arc - shaped track 200.

[0033] The laying and hanging component 300 is used to load the waterproof sheet coil 900 and unwind it. Each end of the laying and hanging component 300 is connected to a traveling trolley 400. The traveling trolley 400 includes a vehicle body 401 and wheel sets provided on opposite sides of the vehicle body 401. An upper row of rollers 402 and a lower row of rollers 403 are provided on one side of the vehicle body 401. The upper row of rollers 402 and the lower row of rollers 403 respectively run on the upper and lower surfaces of the flange 201 of the arc - shaped track 200, driving the laying and hanging component 300 to automatically unwind the waterproof sheet coil during the operation with the traveling trolley.

[0034] The structure of the laying and hanging component is as Figure 4As shown in the figure, it includes a circumferential skeleton 301, a longitudinal axis 302, a front end plate 306, and a rear end plate 307. A plurality of longitudinal axes 302 are provided and arranged at intervals in the circumferential direction between the front end plate 306 and the rear end plate 307. Both ends of the longitudinal axis 302 are fixedly connected to the front end plate 306 and the rear end plate 307 respectively. A plurality of circumferential skeletons 301 are provided and arranged at intervals along the axial direction of the longitudinal axis 302 on the longitudinal axis 302. Each circumferential skeleton 301 is fixedly connected to the longitudinal axis 302 through the provided shaft hole. In this way, the front end plate 306, the rear end plate 307, a plurality of longitudinal axes 302, and a plurality of circumferential skeletons 301 form a cage 315 for accommodating the waterproof sheet roll 900. On the outer sides of the front end plate 306 and the rear end plate 307, support shafts 308 are respectively provided. Through the support shafts 308 at the front and rear ends, the paving and hanging assembly 300 can be supported on two longitudinal support frames 800, and then the two longitudinal support frames 800 are connected to two traveling trolleys 400.

[0035] The structure of the circumferential skeleton 301 is as Figure 5 shown in the figure, and it includes a plurality of arc-shaped frames. Shaft holes 313 are provided on the arc-shaped frames for installing and fixing on the longitudinal axis 302. In this way, the plurality of arc-shaped frames enclose a circumferential skeleton 301 with one side open. The opening is a waterproof sheet outlet 314 for sending out the waterproof sheet outward. In this embodiment, the arc-shaped frames are divided into an arc-shaped fixed frame 309 and an arc-shaped flipping frame 310, and the arc-shaped flipping frame 310 can rotate relative to the arc-shaped fixed frame 309. The two ends of the arc-shaped flipping frame 310 are respectively a rotating end and a movable end. The rotating end is rotatably connected to a longitudinal axis 302, and the movable end is detachably connected to the adjacent longitudinal axis 302. After the arc-shaped flipping frames 310 of the plurality of circumferential skeletons 301 rotate outward, each circumferential skeleton 301 can be opened to put the waterproof sheet roll 900 into the cage 315 of the paving and hanging assembly 300.

[0036] Furthermore, a connecting arm 311 is installed on a longitudinal axis 302 near the waterproof sheet outlet 314. One end of the connecting arm 311 is connected to the movable end of the arc-shaped flipping frame 310 through a detachable connector such as a pin shaft or a bolt. The other end of the connecting arm 311 is installed with a guide wheel 312. Another guide wheel 312 is installed at one end of the arc-shaped fixed frame 309 near the waterproof sheet outlet 314. The guide wheels 312 can rotate freely.

[0037] Furthermore, a plurality of freely rotatable rollers 303 are also provided on the arc-shaped fixed frame 309 and the arc-shaped flipping frame 310. The rollers 303 can reduce the friction with the waterproof sheet roll 900 and avoid damaging the waterproof sheet due to friction when the waterproof sheet roll 900 is unrolled.

[0038] As Figure 6As shown, in this embodiment, when it is necessary to open the circumferential framework 301, the pin shaft between the arc-shaped turning frame 310 and the connecting arm 311 can be removed, and the arc-shaped turning frame 310 can be manually turned outwards to open the circumferential framework 301, and the waterproof sheet material roll 900 can be placed therein. Then, the arc-shaped turning frame 310 is turned inwards, and it is connected and fixed to the connecting arm 311 by the pin shaft.

[0039] Preferably, as Figure 7 shown, a plurality of unwinding motors 304 are further provided on the laying and hanging assembly 300. The unwinding motors 304 are fixed on the lower longitudinal shaft 302 through motor fixing frames. The output shafts of the unwinding motors 304 are provided with unwinding rollers 305 to support the waterproof sheet material roll 900. The rolling surface of the unwinding roller 305 is a friction surface. With the help of friction, the waterproof sheet material roll 900 is driven to rotate and unwind, making the unwinding easier and smoother.

[0040] Further, two unwinding motors 304 are in a group and are oppositely arranged on the lower longitudinal shaft 302. Two groups are provided on one laying and hanging assembly 300 and are kept at a certain distance, and preferably, they are symmetrically arranged about the middle position in the length direction of the longitudinal shaft 302.

[0041] As Figure 8 、 9 shown in FIGS. 9 and 10, the longitudinal support frame 800 includes a longitudinal beam 801, bottom frames 802 fixed at both ends of the longitudinal beam 801, and a laying and hanging assembly mounting seat 803 fixed above the bottom frames 802. One end of the bottom frame 802 is fixedly connected to the end of the longitudinal beam 801, such as by welding or bolt connection. The bottom frame 802 is fixed above the vehicle body 401 of the walking trolley 400 by bolts. The top of the laying and hanging assembly mounting seat 803 is provided with a fixing hole 804. The support shaft 308 at the end of the laying and hanging assembly 300 is installed in the fixing hole 804 and fixed to prevent the laying and hanging assembly 300 from rotating. For example, the rotation of the support shaft 308 in the fixing hole 804 can be prevented by the cooperation of a key and a keyway. Chain connecting arms 805 are respectively provided at both ends of the laying and hanging assembly mounting seat 803 for connecting with the traction assembly 600.

[0042] A plurality of hinge seats are further provided on the longitudinal beam 801. The plurality of hinge seats are arranged at intervals along the length direction of the longitudinal beam 801. Each group of hinge seats is used to install the tension control assembly 500. Each group of hinge seats includes a push rod hinge seat 806 and an oil cylinder hinge seat 807.

[0043] The structure of the tension control assembly 500 is as Figure 1 、 2As shown in the figure, it includes a support push rod 501, an adjustment oil cylinder 502 and a pressure roller 503. One end of the support push rod 501 is hinged to a push rod hinge seat 806 on the longitudinal beam 801, and the other end is provided with a pressure roller 503 which can rotate freely. One end of the adjustment oil cylinder 502 is hinged to an oil cylinder hinge seat 807 on the longitudinal beam 801, and the other end is hinged to the rod body of the support push rod 501. By adjusting the telescopic movement of the adjustment oil cylinder 502, the pitching angle of the support push rod 501 can be adjusted. When the laying and hanging assembly 300 advances and unwinds along the arc track 200, the pitching angle of the support push rod 501 can be adjusted by the adjustment oil cylinder 502, so that the pressure roller 503 at the end of the support push rod 501 can press the unfixed waterproof board 901 against the tunnel wall, preventing the waterproof board 901 from falling off, thus playing a role in anti-detachment. The free rolling of the pressure roller 503 can reduce the friction with the waterproof board 901 and avoid damaging the waterproof board 901.

[0044] Further, the support push rod 501 is in a T shape, with a fixed head perpendicular to the rod body at the front end, and both ends of the pressure roller 503 are rotationally supported on the fixed head through a rotating shaft.

[0045] In other embodiments of this embodiment, other linear telescopic mechanisms can also be used to replace the adjustment oil cylinder 502. For example, an electric cylinder can be used to realize the angle adjustment of the support push rod 501.

[0046] In order to enable the laying and hanging assembly to travel along the arc track driven by the walking trolley, the traction assembly adopted in this embodiment is a chain traction assembly, and its structure is as Figure 1 、 Figure 11 and Figure 12As shown in the figure, it includes a hydraulic motor 601, a chain 602, multiple reversing sprockets 603 and multiple supporting sprockets 605. The hydraulic motor 601 is fixed on the transverse support beam 101 of the trolley and is located at the middle position of the transverse support beam 101. A driving sprocket 606 is installed on the output shaft of the hydraulic motor 601. One pressing wheel 607 is arranged on each side of the driving sprocket 606, and the pressing wheel 607 is lower than the driving sprocket 606. One reversing sprocket 603 is arranged at each end of the transverse support beam 101. One reversing sprocket 603 is arranged on the side of the support column 102 of the trolley. One reversing sprocket 603 is arranged at the end of the arc-shaped track 200 and has the same height as the reversing sprocket 603 on the support column 102. The multiple supporting sprockets 605 are arranged at intervals along the upper surface of the arc-shaped track 200. The middle part of the chain 602 is engaged with the driving sprocket 606 of the hydraulic motor 601. One side of the chain 602 is connected to the chain connecting arm 805 on one side of the hanging component mounting seat 803 on the traveling trolley 400 through the pressing wheel 607 and multiple reversing sprockets 603 and then along the multiple supporting sprockets 605 on the arc-shaped track 200. The other side of the chain 602 is connected to the chain connecting arm 805 on the other side of the hanging component mounting seat 803 in the same way. After the hydraulic motor 601 is started, it drives the chain 602 to rotate, thereby realizing the traction of the traveling trolley 400. The traveling trolley 400 drives the hanging component 300 to travel along the arc-shaped track 200 to perform the automatic unwinding operation of the waterproof sheet material roll 900.

[0047] The purpose of arranging the supporting sprocket 605 on the arc-shaped track 200 is to avoid the direct contact and friction between the chain 602 and the arc-shaped track 200, and at the same time, it can also avoid interfering with the traveling wheels of the traveling trolley 400, ensuring the normal operation of the traveling trolley 400 on the arc-shaped track 200. There is an overhead space at the bottom of the traveling trolley 400 to facilitate the passing of the supporting sprocket 605.

[0048] Furthermore, a transverse fixed beam 103 is arranged between the lower end of the arc-shaped track 200 and the adjacent support column 102. A sleeve 104 with an open lower end is welded on the lower surface of the fixed beam 103. A counterweight 604 is arranged in the sleeve 104, and a tensioning wheel is arranged at the upper end of the counterweight 604. A long strip-shaped slot is opened on the sleeve 104 in the direction where the chain 602 passes. The counterweight 604 is suspended on the chain 602 passing through the sleeve 104 through the tensioning wheel. The tensioning wheel is a smooth wheel with a rim, and the tightness of the chain 602 is adjusted by the self-weight of the counterweight 604.

[0049] Two sets of the traction components 600 are provided, which respectively drive the traveling trolley 400 and the hanging component 300 on one arc-shaped track 200 to move along the track.

[0050] As a variation of the traction assembly 600, in other embodiments, a wire rope can be used instead of the above-mentioned chain 602. Correspondingly, the reversing sprocket 603 and the support sprocket 605 that cooperate with the chain 602 need to be replaced with pulleys that cooperate with the wire rope.

[0051] In other embodiments, a drive motor can also be used as the drive mechanism of the traction assembly to replace the hydraulic motor 601.

[0052] In other embodiments, the traveling trolley 400 can also be self-powered, that is, a hub motor is provided in the upper row of rollers 402 or the lower row of rollers 403, and the rollers provided with the hub motor drive the traveling trolley 400 to move along the arc-shaped track 200. At this time, there is no need to provide the traction assembly 600.

[0053] To facilitate the lifting and placing of the waterproof sheet material roll 900 into the cage 315 of the hanging and laying assembly 300, a hoisting mechanism 700 is also provided on the trolley 100. For example, a hoist can be used to lift and transport the waterproof sheet material roll 900.

[0054] Embodiment 2 This embodiment uses the tunnel waterproof sheet construction relaxation and unwinding anti-detachment device described in Embodiment 1 to perform the hanging and laying operation of the waterproof sheet. The specific method is as follows: 1. Hoisting of the waterproof sheet material roll The traveling trolley 400 is located at the starting end of the arc-shaped track 200 (i.e., the end close to the hoisting mechanism 700). The arc-shaped turning frame 310 of the circumferential skeleton 301 in the hanging and laying assembly 300 is turned outwards, the circumferential skeleton 301 is opened, the hoisting mechanism 700 is manipulated to hoist the waterproof sheet material roll 900 to the hanging and laying assembly 300, and it is placed into the cage 315 of the hanging and laying assembly 300. Then, the arc-shaped turning frame 310 is turned inwards and fixedly connected to the connecting arm 311.

[0055] 2. Adjust the support push rod Manually pull out the waterproof sheet 901 from the waterproof sheet outlet 314 of the hanging and laying assembly 300 and press it between the pressure roller 503 and the tunnel wall. The length pulled out manually should ensure that the automatic unwinding can proceed smoothly after the hanging and laying operation 300 starts.

[0056] By adjusting the telescopic movement of the oil cylinder 502, the pitching angle of the support push rod 501 is adjusted so that the pressure roller 503 at the front end of the support push rod 501 can reliably press the waterproof sheet 901 against the tunnel wall to prevent the waterproof sheet from falling off the tunnel wall.

[0057] 3. Hanging and laying operation Start the hydraulic motor 601 of the traction assembly 600 and the unwinding motor 304 in the laying and hanging assembly 300. Driven by the pulling of the chain 602, drive the laying and hanging assembly 300 and the traveling trolley 400 to move along the arc track 200. At this time, the unwinding motor 304 drives the unwinding roller 305 to rotate, so that the waterproof sheet roll 900 in the laying and hanging assembly 300 rolls out orderly under the friction force of the unwinding roller 305, realizing the automatic unwinding of the waterproof sheet 901; during this process, the pressure roller 503 at the front end of the support push rod 501 can closely fit the rolled-out waterproof sheet 901, so that the waterproof sheet 901 is reliably attached to the tunnel wall; during the unwinding process of the waterproof sheet 901, the construction personnel can fix the waterproof sheet 901 on the tunnel wall on the trolley according to the construction requirements.

[0058] In this way, while the waterproof sheet 901 is automatically unwound, the construction personnel can fix it at the same time until the laying construction of one ring of the waterproof sheet is completed.

[0059] It should be noted that as the laying operation progresses, according to the actual situation, for example, when there are construction problems such as over-excavation or under-excavation on the tunnel wall, resulting in the depression or protrusion of the tunnel wall at that place, the expansion and contraction of the corresponding adjustment cylinder 502 at that position can be adjusted, and then the pitching angle of the support push rod 501 can be adjusted to keep the support push rod 501 always able to produce the best pressing effect on the waterproof sheet and avoid the waterproof sheet from falling off.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Those of ordinary skill in the art should understand that the specific implementation manners of the present invention can be modified or equivalently replaced by referring to the above embodiments. Any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention are within the scope of the claims pending for approval.

Claims

1. A tunnel waterproofing board construction control unwinding and anti-slipping device, comprising a trolley (100), two arc-shaped rails (200) arranged on the trolley (100), and a laying and hanging assembly (300); characterized in that: The paving and hanging assembly (300) comprises a cage frame (315) and support shafts (308) connected to two ends of the cage frame (315), the support shafts (308) at the two ends are connected to two ends of a longitudinal support frame (800), and the two ends of the longitudinal support frame (800) are respectively connected to two walking trolleys (400), and the walking trolleys (400) run on the arc track (200); The bottom of the cage (315) is provided with an unwinding motor (304) and an unwinding roller (305) mounted on the unwinding motor (304), and the unwinding motor (304) drives the waterproof sheet material roll (900) in the cage (315) to roll and unwind via the unwinding roller (305); a waterproof sheet outlet (315) is provided on one side of the cage (315); The longitudinal support frame (800) is provided with a plurality of tension control components (500) arranged at intervals along the length direction of the cage frame (315); the tension control component (500) is located on one side of the waterproof board outlet (314), and comprises a support push rod (501), a linear telescopic mechanism and a pressure roller (503); one end of the support push rod (501) and one end of the linear telescopic mechanism are respectively hinged to the longitudinal support frame (800); the other end of the support push rod (501) is provided with a freely rotatable pressure roller (503); the other end of the linear telescopic mechanism is hinged to the rod body of the support push rod (501).

2. The tunnel waterproofing board construction control unwinding and anti-slipping device according to claim 1 is characterized by: The cage (315) comprises two end plates arranged opposite to each other, a plurality of longitudinal axes (302) and a plurality of annular frames (301); the plurality of longitudinal axes (302) are arranged at intervals along the circumferential direction, and the two ends of the longitudinal axes (302) are respectively fixed to the inner sides of the two end plates; the plurality of annular frames (301) are arranged at intervals along the length direction of the longitudinal axes (302), and the annular frames (301) are provided with axial holes for the longitudinal axes (302) to pass through, and a notch is left on one side of the annular frames (301) as the waterproof board outlet (314); the support shaft (308) is fixed to the outer side of the end plates.

3. The tunnel waterproofing board construction control unwinding and anti-slipping device according to claim 2 is characterized by: The annular frame (301) comprises a plurality of arc-shaped frames, and the arc-shaped frames are provided with the axial holes.

4. The tunnel waterproofing board construction control unwinding and anti-slipping device according to claim 3 is characterized by: One of the arc-shaped frames is an arc-shaped flip frame (310), and the two ends of the arc-shaped flip frame (310) are respectively a rotating end and a movable end, and the rotating end and the movable end are respectively connected to two adjacent longitudinal axes (302), wherein the rotating end is rotatably connected to the longitudinal axis (302), and the movable end is detachably connected to the longitudinal axis (302).

5. The tunnel waterproofing board construction control unwinding and anti-slipping device according to claim 4 is characterized by: A connecting arm (311) is installed on the longitudinal axis (302) connected to the movable end of the arc-shaped flip frame (310); one end of the connecting arm (311) is connected to the arc-shaped flip frame (310) via a detachable connecting piece; the other end of the connecting arm (311) is provided with a guide wheel (312); the guide wheel (312) is located on one side of the waterproof board outlet (314); another guide wheel (312) is provided on the other side of the waterproof board outlet (314); and the two guide wheels (312) are arranged opposite to each other.

6. The tunnel waterproofing board construction control unwinding and anti-slip device according to claim 3 is characterized by: The arc-shaped frame is also provided with a plurality of freely rolling rollers (303), and the wheel rims of the rollers (303) protrude from the inner diameter surface of the arc-shaped frame.

7. The tunnel waterproofing board construction control unwinding and anti-slipping device according to claim 1 is characterized by: The unwinding motors (304) are arranged in groups of two and are arranged relatively at the lower part of the cage frame (315); at least one group of unwinding motors (304) is arranged on the cage frame (315).

8. The tunnel waterproofing board construction control unwinding and anti-slipping device according to claim 1 is characterized by: The longitudinal support frame (800) comprises a longitudinal beam (801), a base frame (802) fixed at both ends of the longitudinal beam (801), and a paving assembly mounting seat (803) fixed on the base frame (802); the base frame (802) is fixed on the walking trolley (400); and the support shaft (308) on the cage frame (315) is connected to the paving assembly mounting seat (803).

9. The tunnel waterproofing board construction control unwinding and anti-slipping device according to claim 8, characterized in that: The longitudinal beam (801) is provided with a plurality of sets of articulated seats, which are arranged at intervals along the length of the longitudinal beam, and each set of articulated seats is used to install the support push rod (501) and the linear telescopic mechanism of the tension and relaxation control component (500).

10. The tunnel waterproofing board construction control unwinding and anti-slip device according to claim 1, characterized in that: It also includes a traction assembly (600), the traction assembly (600) including a driving mechanism, a traction member, a reversing wheel and a supporting wheel, the driving mechanism and the reversing wheel are fixed on the trolley (100), the reversing wheel is located on the winding path of the traction member, and the supporting wheels are arranged at intervals along the arc track (200); the middle part of the traction member is wound around the driving wheel at the output end of the driving mechanism, and the two ends of the traction member are connected to the opposite sides of the traveling trolley (400) or the longitudinal support frame (800) after respectively passing through the reversing wheels via the support wheels.

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