Underground engineering EVA waterproof plate laying device

Abstract

The invention relates to the technical field of underground engineering waterproof construction, in particular to an underground engineering EVA waterproof plate laying device which comprises a rack, the rack is arranged in an underground tunnel, the upper side of the rack is a trapezoid frame, bottom supports are fixedly connected to the lower ends of the left side and the right side of the trapezoid frame, and a driving system is installed on the outer sides of the bottom supports; telescopic arms are symmetrically arranged on the front side and the rear side of the rack in the left-right direction, a waterproof plate mounting assembly and a spraying mechanism are arranged between the two telescopic arms distributed on the left side and the right side in the front-back direction, and the spraying mechanism is arranged at the front end of the waterproof plate mounting assembly. Waterproof coating spraying and waterproof plate laying construction of the underground tunnel wall can be rapidly completed, two kinds of waterproof construction are synchronously and automatically completed, and the waterproof construction period of an underground tunnel can be effectively shortened while the waterproof effect of the underground tunnel is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of underground engineering waterproof construction, and in particular to a laying device for an EVA waterproof board of an underground engineering. Background Art

[0002] Underground engineering refers to the general term for various construction projects and facilities carried out below the surface. These projects usually include but are not limited to basements, tunnels, air-raid shelters, and energy storage facilities. Among them, underground tunnel structures are more common. The waterproof construction of underground tunnels is a key step to ensure that underground tunnels are protected from groundwater erosion. It is essential to extend the service life of the tunnel and protect the safety of internal facilities. Construction units will choose appropriate waterproof materials according to different engineering requirements and environmental conditions.

[0003] Quick-setting rubber asphalt waterproof coating is a high-performance waterproof material with excellent elasticity and self-healing ability. It can be used alone to provide reliable waterproof protection in many cases. However, in some specific application scenarios, it is also necessary to combine it with the laying of EVA waterproof board to enhance the overall waterproof effect. EVA waterproof board is a waterproof material commonly used in underground projects. It has good flexibility, weather resistance, aging resistance and excellent waterproof performance.

[0004] In the prior art, the construction using the combination of the above two waterproofing methods needs to be carried out separately. Generally, it is necessary to spray the waterproof coating first. When spraying, it is mostly done by manually riding an elevator to a suitable height and using a spray gun to spray. After the coating is sprayed, the waterproof board is laid using a waterproof board laying device. However, due to the slow efficiency of manual spraying, the laying progress of the waterproof board will be directly affected. At the same time, the quick-setting rubber asphalt waterproof coating is a coating with a relatively fast curing speed. Manual spraying requires uninterrupted trimming and there will be a certain stagnation period. During this period, the coating remaining on the periphery of the nozzle will cure quickly and easily clog the nozzle's spray hole, requiring manual peeling, which further affects the construction efficiency. In addition, the existing waterproof board laying device uses a single arm to rotate along the underground tunnel wall, and the overall working path is relatively long, and the laying efficiency needs to be improved. Summary of the invention

[0005] Technical problem to be solved: The present invention provides a laying device for EVA waterproof board for underground engineering, which can solve the above-mentioned problems.

[0006] Technical solution: In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a laying device for EVA waterproof boards in underground projects, including a frame, which is arranged in an underground tunnel. The upper side of the frame is a trapezoidal frame, and the lower ends of the left and right sides of the trapezoidal frame are fixedly connected to bottom supports. A traveling system is installed on the outside of the bottom supports. Telescopic arms are symmetrically arranged on the front and rear sides of the frame, and a waterproof board installation assembly and a spraying mechanism are arranged between the two telescopic arms distributed front and back on the left and right sides. The spraying mechanism is arranged at the front end of the waterproof board installation assembly, and a rotating assembly for controlling the opposite rotation of the left and right telescopic arms is arranged inside the frame.

[0007] The spraying mechanism includes a mounting frame fixedly connected to the outer end of the front telescopic arm, an infusion tube is fixedly connected inside the mounting frame, one end of the infusion tube is communicated with an external high-pressure transmission system, a plurality of nozzles are equidistantly rotatably connected to the infusion tube, a plurality of spray holes are opened on the outer wall of the end of the nozzle, a clearing component for clearing the spray holes is arranged in the nozzle hole, a stripping component for stripping the solidified coating on the periphery of the nozzle is commonly arranged outside the plurality of nozzles, and a repairing component for repairing the laying of waterproof boards and the spraying of waterproof coating is arranged at the top center of the trapezoidal frame.

[0008] By using the waterproof board installation component, the repair component, the stripping component and the dredging component together, the quick-setting rubber asphalt waterproof coating can be quickly sprayed while the waterproof board is quickly installed.

[0009] As a preferred technical solution of the present invention, a worm gear is fixedly connected to the outer wall of the nozzle, a worm sleeve is meshingly connected to the outer periphery of the worm gear, and several worm sleeves are fixedly connected to the connecting shaft. The left end of the connecting shaft extends to the outside of the mounting frame and is fixedly connected to the output end of motor four, and motor four is fixedly connected to the outside of the mounting frame.

[0010] As a preferred technical solution of the present invention, the rotating assembly includes a mounting plate fixedly connected to the center of the front and rear sides of the trapezoidal body frame, and connecting rods are symmetrically connected to the front and rear mounting plates for rotation. The telescopic arms are fixedly connected to the ends of the connecting rods one by one, and the front ends of the two connecting rods extend to the outside of the front mounting plate and are fixedly connected to gear one. The two gears are meshed and connected. The middle part of any one of the connecting rods is fixedly connected to the first bevel gear, and the outer periphery of the first bevel gear is meshed and connected to the second bevel gear. The second bevel gear is rotatably connected to the support plate through a rotating pin. The support plates are fixedly connected to the trapezoidal body frame in front and back distributions, and the rotating pins extend to the lower side of the support plate and are fixedly connected to the output end of motor one, and motor one is fixedly connected to the lower side of the support plate.

[0011] As a preferred technical solution of the present invention, the waterproof board installation assembly includes a mounting seat fixedly connected to the outer end of the rear telescopic arm, a waterproof board roll is detachably rotatably connected between the mounting seat and the mounting frame installed on the front telescopic arm, a short rod is integrally fixedly connected to the mounting seat and the mounting frame along the telescopic direction of the telescopic arm, a push rod is rotatably connected between the front and rear short rods, the starting end of the waterproof board roll is laid on the push rod, and the push rod is provided with a puncturing component for puncturing the laid waterproof board.

[0012] As a preferred technical solution of the present invention, the piercing component includes a plurality of mounting sleeves distributed in pairs and linearly and equidistantly fixedly connected to the support rod, the inner end of the mounting sleeve is closed and the outer end is slidably penetrated by a piercing rod, one end of the piercing rod located inside the mounting sleeve is fixedly connected to a limiting plate, a spring 1 is arranged between the limiting plate and the inner end wall of the mounting sleeve, the rear end of the support rod extends to the outside of the mounting seat and is fixedly connected to the output end of the motor 2, and the motor 2 is fixedly connected to the outside of the mounting seat.

[0013] As a preferred technical solution of the present invention, the dredging component includes a movable rod passing through the spray hole, a ball head is fixedly connected to the outer end of the movable rod, a back plate is fixedly connected to the inner end of the movable rod, a spring 2 is fixedly connected between the back plate and the side wall of the spray head, and a section of the movable rod located at the spray hole is fixedly connected to a plurality of bristles.

[0014] As a preferred technical solution of the present invention, the stripping assembly includes a rotating sleeve rotatably connected to the periphery of the nozzle, a mounting ring is provided on the outer sleeve, a plurality of movable grooves are equidistantly provided on the inner circumference of the mounting ring, a plurality of racks are fixedly connected to the rotating sleeve circumferentially equidistantly, the racks and the movable grooves are distributed one-to-one, and rotating teeth are meshed and connected to the racks, and the rotating teeth are rotatably connected in the movable grooves, and a support arm pointing in the spraying direction of the nozzle is also fixedly connected to the rotating teeth, and a stripping blade matching the contour of the outer wall of the nozzle is fixedly connected to the end of the support arm away from the rotating teeth, a wavy groove is provided on the inner wall of the stripping blade, and a limiting protrusion is also fixedly connected to the outer wall of the rotating sleeve, and a limiting groove matching the limiting protrusion is provided on the mounting ring, and each mounting ring is fixedly connected by a plurality of connecting plates, and any plurality of connecting plates are fixedly connected with brackets, and the plurality of brackets are fixedly connected to the push plate together, and the push plate is fixedly connected to the output end of a plurality of electric push rods two, and each electric push rod two is fixedly connected to the mounting frame.

[0015] As a preferred technical solution of the present invention, the repair component includes a movable opening opened in the mounting plate, a movable plate is slidably connected in the movable opening, the lower end of the movable plate is fixedly connected to the output end of the electric push rod one, the electric push rod one is fixedly connected to the mounting plate, a screw rod is rotatably connected between the front and rear movable plates and a guide rod is fixedly connected, two movable seats are threadedly connected to the screw rod, the two movable seats are also slidably connected to the guide rod together, the spacing between the two movable seats is half of the front and rear direction of the trapezoidal frame, one end of the screw rod extends to the outside of the movable plate and is fixedly connected to the output end of the motor three, the motor three is fixedly connected to the outside of the corresponding movable plate, a connecting pipe is installed on the front movable seat, the connecting pipe is communicated with the external high-pressure transmission system, a number of nozzles are installed on the connecting pipe, and a short waterproof board roll is installed on the rear movable seat.

[0016] As a preferred technical solution of the present invention, a plurality of pedals are fixedly connected at equal distances to the left and right sides of the trapezoidal frame and to the outer sides of the left and right bottom supports.

[0017] As a preferred technical solution of the present invention, the front and rear sides of the trapezoidal frame are fixedly connected with arc guide frames, an arc groove is opened in the arc guide frame, and two telescopic arms distributed on the left and right are slidably connected in the same arc groove through sliding pins.

[0018] Beneficial effects:

[0019] 1. The rotating assembly adopted in the present invention performs concentrated waterproofing construction from low to high on the curved wall of the underground tunnel by means of two sets of telescopic arms rotating in opposite directions. Compared with the traditional method of constructing from one end of the curved wall to the other end, it can effectively improve the construction efficiency.

[0020] 2. The waterproof board installation assembly and spraying mechanism adopted in the present invention are used in combination. The front half of the device is used for spraying asphalt coating, and the rear half of the device is used for laying waterproof boards. In the overall structure, the waterproof coating and the waterproof board are laid simultaneously without interfering with each other, which effectively improves the construction efficiency.

[0021] 3. The stripping component and the unblocking component used in the present invention are used together to automatically and periodically clean the solidified coating on the outside of the nozzle, effectively avoiding the problem of the nozzle being blocked by solidified coating and requiring manual cleaning one by one, thereby further improving construction efficiency.

[0022] 4. The rotating assembly, waterproof board installation assembly and spraying mechanism adopted in the present invention are used in combination to quickly complete the spraying of waterproof coating on the underground tunnel wall and the laying of waterproof boards. The two waterproof constructions are completed simultaneously and automatically, which can effectively shorten the waterproof construction period of the underground tunnel while ensuring the waterproof effect of the underground tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0025] Figure 2 It is a schematic diagram of the working state of the present invention during underground tunnel construction.

[0026] Figure 3 It is a cross-sectional three-dimensional structural schematic diagram of the present invention.

[0027] Figure 4 It is a schematic diagram of the three-dimensional connection structure of the waterproof board installation assembly and the spraying mechanism of the present invention.

[0028] Figure 5 It is a schematic cross-sectional structural diagram of the piercing component of the present invention.

[0029] Figure 6 The present invention Figure 4 Schematic diagram of the enlarged structure of area A in the middle.

[0030] Figure 7 It is a connection schematic diagram of a single nozzle of the present invention and a structure connected thereto.

[0031] Figure 8 It is a schematic cross-sectional structural diagram of the nozzle of the present invention.

[0032] In the figure: 1, frame; 11, travel system; 12, pedal; 13, mounting plate; 14, support plate; 2, telescopic arm; 21, revolving assembly; 211, gear 1; 212, connecting rod; 213, first bevel gear; 214, second bevel gear; 215, motor 1; 22, waterproof board mounting assembly; 221, waterproof board roll; 222, motor 2; 223, stop rod; 224, piercing component; 2241, mounting sleeve; 2242, spring 1; 2243, piercing rod; 23, arc guide frame; 231, arc groove; 24, mounting seat; 3, spraying mechanism; 31, repair assembly; 311, electric push rod 1; 312, movable plate; 31 3. Screw rod; 314. Guide rod; 315. Moving seat; 316. Motor three; 32. Mounting frame; 33. Stripping assembly; 331. Electric push rod two; 332. Bracket; 333. Push plate; 334. Mounting ring; 335. Rotating gear; 336. Limiting protrusion; 337. Rack; 338. Support arm; 339. Rotating sleeve; 3310. Stripping blade; 3311. Connecting plate; 34. Motor four; 35. Worm gear; 36. Spray nozzle; 361. Spray hole; 37. Worm sleeve; 38. Connecting shaft; 39. Clearing assembly; 391. Bristles; 392. Movable rod; 393. Spring two; 394. Back plate; 395. Wave groove; 4. Underground tunnel. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0034] See also Figure 1 and Figure 2 A laying device for EVA waterproof board in underground engineering includes a frame 1, which is arranged in an underground tunnel 4. The upper side of the frame 1 is a trapezoidal frame. The lower ends of the left and right sides of the trapezoidal frame are fixedly connected to bottom supports. A driving system 11 is installed on the outer side of the bottom support (the driving system 11 is a crawler type). Telescopic arms 2 are symmetrically arranged on the front and rear sides of the frame 1 (the telescopic arms 2 are three-section telescopic, and the telescopic arms 2 are controlled by a hydraulic system). A waterproof board installation component 22 and a spraying mechanism 3 are arranged between the two telescopic arms 2 distributed front and back on the left and right sides. The spraying mechanism 3 is arranged at the front end of the waterproof board installation component 22, and a rotating component 21 for controlling the opposite rotation of the left and right telescopic arms 2 is arranged inside the frame 1.

[0035] During specific operation, the whole device is driven to move in the ground tunnel by the traveling system 11 , and the waterproof board installation assembly 22 and the spraying mechanism 3 are controlled to stay close to the side wall of the underground tunnel 4 by the telescopic arm 2 .

[0036] See also Figure 1 , Figure 4 and Figure 8 The spraying mechanism 3 includes a mounting frame 32 fixedly connected to the outer end of the front telescopic arm 2, an infusion tube is fixedly connected inside the mounting frame 32, one end of the infusion tube is communicated with an external high-pressure delivery system (the external high-pressure delivery system is not shown in the figure), and a plurality of nozzles 36 are equidistantly rotatably connected to the infusion tube, a plurality of spray holes 361 are opened on the outer wall of the end of the nozzle 36, and a dredging component 39 for dredging the spray hole 361 is arranged in the nozzle hole 361, a stripping component 33 for stripping the solidified coating on the periphery of the nozzle 36 is commonly arranged outside the plurality of nozzles 36, and a repair component 31 for repairing the laying of waterproof boards and the spraying of waterproof coatings is arranged at the top center of the trapezoidal frame.

[0037] During specific operation, high-pressure fluid is delivered by the high-pressure delivery system, and the coating material is sprayed onto the side wall of the underground tunnel 4 from the spray hole 361 of the spray head 36 .

[0038] By using the waterproof board installation component 22, the repair component 31, the stripping component 33 and the dredging component 39 in cooperation, the quick-setting rubber asphalt waterproof coating can be quickly sprayed while the waterproof board is quickly installed.

[0039] See also Figure 4 , Figure 6 and Figure 7A worm gear 35 is fixedly connected to the outer wall of the nozzle 36, and a worm sleeve 37 is meshedly connected to the outer periphery of the worm gear 35. Several worm sleeves 37 are fixedly connected to a connecting shaft 38. The left end of the connecting shaft 38 extends to the outside of the mounting frame 32 and is fixedly connected to the output end of the motor four 34. The motor four 34 is fixedly connected to the outside of the mounting frame 32.

[0040] During specific operation, the motor 4 34 controls the rotation of the connecting shaft 38, which drives the worm gear 35 to rotate, and the worm gear 35 drives the nozzle 36 to rotate on the infusion tube, thereby increasing the coverage of the spray hole 361 and improving the uniformity of paint spraying.

[0041] See also Figure 1 and Figure 3 The rotating assembly 21 includes a mounting plate 13 fixedly connected to the center of the front and rear sides of the trapezoidal frame, and a connecting rod 212 is symmetrically connected between the front and rear mounting plates 13 for left-right rotation. The telescopic arms 2 are fixedly connected to the ends of the connecting rods 212 one by one, and the front ends of the two connecting rods 212 extend to the outside of the front mounting plate 13 and are fixedly connected to a gear 211. The two gears 211 are meshed and connected. The middle part of any one of the connecting rods 212 is fixedly connected to a first bevel gear 213, and the outer periphery of the first bevel gear 213 is meshed and connected to a second bevel gear 214. The second bevel gear 214 is rotatably connected to the support plate 14 through a rotating pin. The support plate 14 is fixedly connected to the trapezoidal frame in front and back distribution. The rotating pin extends to the lower side of the support plate 14 and is fixedly connected to the output end of a motor 215. The motor 215 is fixedly connected to the lower side of the support plate 14.

[0042] During specific operation, the second bevel gear 214 is controlled to rotate by the motor 215, and the second bevel gear 214 controls the first bevel gear 213 to rotate and control the connected connecting rod 212 to rotate, and the two gears 211 are meshed and connected to control the other connecting rod 212 to rotate synchronously and oppositely, so that the two sets of telescopic arms 2 rotate upward synchronously, and the waterproof board mounting components 22 and the spraying mechanism 3 on both sides work at the same time, so as to improve work efficiency.

[0043] See also Figure 1 , Figure 4 and Figure 5The waterproof board installation assembly 22 includes a mounting seat 24 fixedly connected to the outer end of the rear telescopic arm 2, a waterproof board coil 221 is detachably rotatably connected between the mounting seat 24 and the mounting frame 32 installed on the front telescopic arm 2, a short rod is integrally fixedly connected to the mounting seat 24 and the mounting frame 32 along the telescopic direction of the telescopic arm 2, a support rod 223 is rotatably connected between the front and rear short rods, the starting end of the waterproof board coil 221 is laid on the support rod 223, and a piercing component 224 for piercing the laid waterproof board is provided on the support rod 223 The piercing component 224 includes a plurality of mounting sleeves 2241 linearly and equidistantly fixedly connected in pairs to the support rod 223. The inner end of the mounting sleeve 2241 is closed and the outer end is slidably penetrated by a piercing rod 2243. One end of the piercing rod 2243 located inside the mounting sleeve 2241 is fixedly connected to a limiting plate. A spring 2242 is provided between the limiting plate and the inner end wall of the mounting sleeve 2241. The rear end of the support rod 223 extends to the outside of the mounting seat 24 and is fixedly connected to the output end of the motor 222. The motor 222 is fixedly connected to the outside of the mounting seat 24.

[0044] During specific operation, the waterproof board coil 221 is pressed against the side wall of the underground tunnel 4 by the push rod 223, and the push rod 223 is driven to rotate by the motor 222, so that the thorn rod 2243 periodically punctures holes in the waterproof board. When the waterproof board is fixed at a later time, expansion screws can be driven through the punctured holes. The evenly distributed puncture holes can ensure the uniformity of the installation of the expansion screws. The spring 1 2242 is provided to prevent the thorn rod 2243 from having a hard contact with the side wall of the underground tunnel 4.

[0045] See also Figure 8 The dredging component 39 includes a movable rod 392 passing through the spray hole 361, a ball head is fixedly connected to the outer end of the movable rod 392, a support plate 394 is fixedly connected to the inner end of the movable rod 392, a spring 2 393 is fixedly connected between the support plate 394 and the side wall of the spray head 36, and a section of the movable rod 392 located at the spray hole 361 is fixedly connected to a plurality of bristles 391.

[0046] During specific operation, the ball head presses the movable rod 392 to move inside the spray hole 361, and the spring 2 393 is pulled by the plate 394 to stretch. When the ball head loses pressure, the spring 2 393 shortens and resets to control the movable rod 392 to be ejected, and the movable rod 392 drives the bristles 391 to control the movement of the paint in the spray hole 361. Driven by the bristles 391, the paint will flow out of the spray hole 361 or return to the nozzle 36. The paint flowing out of the spray hole 361 will solidify when exposed to the air, and the paint returned to the nozzle 36 will maintain its original state.

[0047] See also Figure 4 , Figure 6 and Figure 7The stripping assembly 33 includes a rotating sleeve 339 rotatably connected to the periphery of the nozzle 36, a mounting ring 334 is provided on the periphery of the rotating sleeve 339, a plurality of movable grooves are equidistantly provided on the inner circumference of the mounting ring 334, a plurality of racks 337 are fixedly connected to the rotating sleeve 339 equidistantly, the racks 337 are distributed one by one with the movable grooves, a rotating tooth 335 is meshedly connected to the rack 337, the rotating tooth 335 is rotatably connected in the movable groove, a support arm 338 pointing to the spraying direction of the nozzle 36 is fixedly connected to the rotating tooth 335, and an end of the support arm 338 away from the rotating tooth 335 is fixedly connected to the outer circumference of the nozzle 36 The peeling blade 3310 has a wall contour that matches the peeling blade 3310, and the inner wall of the peeling blade 3310 is provided with a wave groove 395. The outer wall of the rotating sleeve 339 is also fixedly connected to a limiting protrusion 336. The mounting ring 334 is provided with a limiting groove that matches the limiting protrusion 336. The mounting rings 334 are fixedly connected through a plurality of connecting plates 3311. Any plurality of connecting plates 3311 are fixedly connected with a bracket 332. The plurality of brackets 332 are fixedly connected to a push plate 333. The push plate 333 is fixedly connected to the output end of a plurality of electric push rods 331. Each electric push rod 331 is fixedly connected to the mounting frame 32.

[0048] During specific operation, the push plate 333 is controlled to move by the electric push rod 331, and the push plate 333 drives the bracket 332 to control multiple connecting plates 3311 to drive each mounting ring 334 to move, and the mounting ring 334 drives the rotating gear 335 to rotate along the rack 337. The rotating gear 335 rotates and drives the support arm 338 to control the stripping blade 3310 to stick to the nozzle 36. When the nozzle 36 rotates, the solidified paint on the outside of the nozzle 36 will be stripped off by the stripping blade 3310, and the ball head of the movable rod 392 continuously fluctuates in the wave groove 395 of the stripping blade 3310, thereby driving the movable rod 392 to move in the spray hole 361.

[0049] See also Figure 1 and Figure 3 The repair component 31 includes a movable opening opened in the mounting plate 13, a movable plate 312 is slidably connected in the movable opening, the lower end of the movable plate 312 is fixedly connected to the output end of the electric push rod 311, the electric push rod 311 is fixedly connected to the mounting plate 13, a screw rod 313 is rotatably connected between the front and rear movable plates 312 and a guide rod 314 is fixedly connected, two movable seats 315 are threadedly connected to the screw rod 313, and the two movable seats 315 are also slidably connected to the guide rod 31 4, the spacing between the two moving seats 315 is half of the front-to-back direction of the trapezoidal frame, one end of the screw rod 313 extends to the outside of the movable plate 312 and is fixedly connected to the output end of the motor three 316, and the motor three 316 is fixedly connected to the outside of the corresponding movable plate 312, a connecting pipe is installed on the front moving seat 315, the connecting pipe is communicated with the external high-pressure transmission system, and a plurality of nozzles 36 are installed on the connecting pipe (the nozzle 36 uses a fan nozzle), and a short waterproof sheet coil 221 is installed on the rear moving seat 315.

[0050] During specific operation, the motor 316 drives the screw rod 313 to rotate and control the two moving seats 315 to move synchronously along the guide rod 314. The front moving seat 315 drives several nozzles 36 to repair the butt joints of the sprayed surfaces on the left and right sides. The rear moving seat 315 drives the short waterproof sheet roll 221 to repair the butt joints of the waterproof sheet roll 221 on the left and right sides to ensure the comprehensiveness of spraying and laying.

[0051] See also Figure 1 A plurality of pedals 12 are fixedly connected to the left and right sides of the trapezoidal frame and the outer sides of the left and right bottom supports at equal intervals.

[0052] During specific work, the height of the multi-level pedal 12 is continuously changed to adapt to the change of the side wall of the ground tunnel from the ground, and the staff can fix the waterproof board at different positions by stepping on the pedals 12 of different levels.

[0053] See also Figure 3 The front and rear sides of the trapezoidal body frame are fixedly connected with an arc guide frame 23, an arc groove 231 is opened in the arc guide frame 23, and the two telescopic arms 2 distributed on the left and right are slidably connected in the same arc groove 231 through a sliding pin.

[0054] During specific operation, the sliding pin and the arc groove 231 cooperate to improve the rotation stability of the telescopic arm 2.

[0055] When using:

[0056] S1: The whole device is driven to move in the ground tunnel by the driving system 11. During construction, the whole device needs to be located in the middle of the ground tunnel. After the device moves to the construction position, it stops moving, and then the starting ends of each waterproof sheet roll 221 are fixed to the corresponding positions of the four walls of the underground tunnel.

[0057] S2: Then the second bevel gear 214 is controlled to rotate by the motor 1 215, and the second bevel gear 214 controls the first bevel gear 213 to rotate and control the connected connecting rod 212 to rotate, and the two gears 1 211 are meshed and connected to control the other connecting rod 212 to rotate synchronously and oppositely, so that the two sets of telescopic arms 2 are synchronously rotated upward, so that the waterproof board installation components 22 and the spraying mechanism 3 on both sides work at the same time. At the same time, the waterproof board installation components 22 and the spraying mechanism 3 are controlled to stay close to the side wall of the underground tunnel 4 by the telescopic arms 2. At the same time, the motor The fourth 34 controls the rotation of the connecting shaft 38, and the connecting shaft 38 drives the worm gear 35 to rotate to control the rotation of the worm gear 35, and the worm gear 35 drives the nozzle 36 to rotate on the infusion tube, and the high-pressure fluid is delivered through the high-pressure delivery system. The rotating nozzle 36 sprays the paint onto the side wall of the underground tunnel 4, and the rotation of the telescopic wall will pull the waterproof sheet coil 221 to release, and the waterproof sheet coil 221 is pressed against the side wall of the underground tunnel 4 by the push rod 223, and the push rod 223 is driven to rotate by the motor 222, so that the piercing rod 2243 periodically pierces the waterproof sheet.

[0058] S3: until the telescopic arms 2 on both sides are concentrated in the middle of the device, the waterproof board is manually cut and laid, and the high-pressure delivery system stops delivering the paint to the nozzle 36 in the mounting frame 32, and then the rotating assembly 21 is rotated to reset the telescopic arm 2 to its original position. In the reset stage, the push plate 333 is controlled to move by the electric push rod 2 331, and the push plate 333 drives the bracket 332 to control multiple connecting plates 3311 to drive each mounting ring 334 to move, and the mounting ring 334 drives the rotating gear 335 to rotate along the rack 337, and the rotating gear 335 rotates to drive the support arm 338 to control the stripping blade 3310 to stick to the nozzle 36. When the nozzle 36 rotates, the solidified paint on the outside of the nozzle 36 will be peeled off by the peeling blade 3310. 310 peeling, the ball head of the movable rod 392 constantly fluctuates in the wave groove 395 of the peeling blade 3310, thereby driving the movable rod 392 to move in the spray hole 361, and the movable rod 392 is pressed by the ball head to move toward the inside of the spray hole 361, and the spring 2 393 is pulled by the plate 394 to stretch. When the ball head loses pressure, the spring 2 393 shortens and resets to control the movable rod 392 to be ejected, and the bristles 391 are driven by the movable rod 392 to control the movement of the paint in the spray hole 361. Driven by the bristles 391, the paint will flow out of the spray hole 361 or return to the nozzle 36. The paint flowing out of the spray hole 361 will solidify when exposed to the air, and the paint returned to the nozzle 36 will maintain its original state.

[0059] S4: While the reset phase in S3 is being carried out, the motor 316 drives the screw rod 313 to rotate and control the two moving seats 315 to move synchronously along the guide rod 314. The front moving seat 315 drives a number of nozzles 36 to repair the butt joints of the left and right sprayed surfaces. The nozzles 36 of the repair component 31 are also transported with paint by the high-pressure transport system. The rear moving seat 315 drives the short waterproof sheet roll 221 to repair the butt joints of the left and right waterproof sheet rolls 221. After the repair is completed, the short waterproof sheet roll 221 is cut, and the work of the nozzle 36 is stopped. Then the two moving seats 315 are reset. After the telescopic arm 2 is also reset, the driving system 11 drives the entire device to move forward one body position to perform waterproof construction at the next position.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for laying EVA waterproof boards for underground projects, comprising a frame (1), the frame (1) being arranged in an underground tunnel (4), the upper side of the frame (1) being a trapezoidal frame, the lower ends of the left and right sides of the trapezoidal frame being fixedly connected to bottom supports, the outer side of the bottom supports being equipped with a travel system (11), characterized in that: The frame (1) is provided with telescopic arms (2) symmetrically on both the front and rear sides, a waterproof board installation component (22) and a spraying mechanism (3) are provided between the two telescopic arms (2) distributed front and rear on the left and right sides, the spraying mechanism (3) is provided at the front end of the waterproof board installation component (22), and a rotating component (21) for controlling the opposite rotation of the two telescopic arms (2) on the left and right sides is provided inside the frame (1); The spraying mechanism (3) comprises a mounting frame (32) fixedly connected to the outer end of the front telescopic arm (2), a liquid infusion tube fixedly connected inside the mounting frame (32), one end of the liquid infusion tube being in communication with an external high-pressure delivery system, a plurality of spray heads (36) being rotatably connected to the liquid infusion tube at equal intervals, a plurality of spray holes (361) being provided on the outer wall of the end of the spray head (36), a dredging assembly (39) for dredging the spray holes (361) being provided inside the spray holes (361), a stripping assembly (33) for stripping the solidified coating on the periphery of the spray heads (36) being provided outside the plurality of spray heads (36), and a repair assembly (31) for repairing the laying of waterproof boards and the spraying of waterproof coating being provided at the top center of the trapezoidal frame; By using the waterproof board installation component (22), the repair component (31), the stripping component (33) and the dredging component (39) in coordination, the quick-setting rubber asphalt waterproof coating can be quickly sprayed while the waterproof board is quickly mounted.

2. The laying device of the EVA waterproof board for underground engineering according to claim 1 is characterized by: A worm wheel (35) is fixedly connected to the outer wall of the nozzle (36), and a worm sleeve (37) is meshedly connected to the outer periphery of the worm wheel (35). A plurality of worm sleeves (37) are fixedly connected to a connecting shaft (38). The left end of the connecting shaft (38) extends to the outside of the mounting frame (32) and is fixedly connected to the output end of the fourth motor (34). The fourth motor (34) is fixedly connected to the outside of the mounting frame (32).

3. The laying device of the EVA waterproof board for underground engineering according to claim 1 is characterized by: The revolving assembly (21) comprises a mounting plate (13) fixedly connected to the center of the front and rear sides of the trapezoidal body frame, a connecting rod (212) is symmetrically rotatably connected between the front and rear mounting plates (13), the telescopic arms (2) are fixedly connected to the ends of the connecting rods (212) one by one, the front ends of the two connecting rods (212) extend to the outside of the front mounting plate (13) and are fixedly connected to a gear one (211), the two gears one (211) are meshed and connected, the middle part of any connecting rod (212) is fixedly connected to a first bevel gear (213), the outer periphery of the first bevel gear (213) is meshed and connected to a second bevel gear (214), the second bevel gear (214) is rotatably connected to the support plate (14) through a rotating pin, the support plate (14) is fixedly connected to the trapezoidal body frame in front and rear distribution, the rotating pin extends to the lower side of the support plate (14) and is fixedly connected to the output end of a motor one (215), and the motor one (215) is fixedly connected to the lower side of the support plate (14).

4. The laying device of the EVA waterproof board for underground engineering according to claim 1 is characterized by: The waterproof board installation assembly (22) comprises a mounting seat (24) fixedly connected to the outer end of the rear telescopic arm (2); a waterproof board coil (221) is detachably rotatably connected between the mounting seat (24) and a mounting frame (32) installed on the front telescopic arm (2); a short rod is integrally fixedly connected to the mounting seat (24) and the mounting frame (32) along the telescopic direction of the telescopic arm (2); a support rod (223) is rotatably connected between the front and rear short rods; the starting end of the waterproof board coil (221) is laid on the support rod (223); and a piercing component (224) for piercing holes in the laid waterproof board is provided on the support rod (223).

5. The laying device of the EVA waterproof board for underground engineering according to claim 1 is characterized by: The piercing component (224) comprises a plurality of mounting sleeves (2241) which are linearly and equidistantly fixedly connected to the support rod (223) and are distributed in pairs. The inner end of the mounting sleeve (2241) is closed and the outer end is slidably penetrated by the piercing rod (2243). One end of the piercing rod (2243) located inside the mounting sleeve (2241) is fixedly connected to a limit plate. A spring 1 (2242) is provided between the limit plate and the inner end wall of the mounting sleeve (2241). The rear end of the support rod (223) extends to the outside of the mounting seat (24) and is fixedly connected to the output end of the second motor (222). The second motor (222) is fixedly connected to the outside of the mounting seat (24).

6. The laying device of the EVA waterproof board for underground engineering according to claim 1 is characterized by: The dredging component (39) comprises a movable rod (392) passing through the spray hole (361), the outer end of the movable rod (392) is fixedly connected to a ball head, the inner end of the movable rod (392) is fixedly connected to a support plate (394), a spring 2 (393) is fixedly connected between the support plate (394) and the side wall of the spray head (36), and a section of the movable rod (392) located at the spray hole (361) is fixedly connected to a plurality of bristles (391).

7. The laying device of the EVA waterproof board for underground engineering according to claim 1 is characterized by: The stripping assembly (33) comprises a rotating sleeve (339) rotatably connected to the periphery of the nozzle (36); a mounting ring (334) is mounted on the periphery of the rotating sleeve (339); a plurality of movable grooves are equidistantly provided on the inner circumference of the mounting ring (334); a plurality of racks (337) are equidistantly fixedly connected to the circumference of the rotating sleeve (339); the racks (337) are distributed one-to-one with the movable grooves; a rotating tooth (335) is meshingly connected to the rack (337); the rotating tooth (335) is rotatably connected in the movable groove; a support arm (338) pointing to the spraying direction of the nozzle (36) is fixedly connected to the rotating tooth (335); an end of the support arm (338) away from the rotating tooth (335) is fixedly connected to the outer circumference of the nozzle (36); The peeling blade (3310) has a wall profile that matches the peeling blade (3310), and the inner wall of the peeling blade (3310) is provided with a wave groove (395). The outer wall of the rotating sleeve (339) is also fixedly connected to a limiting protrusion (336). The mounting ring (334) is provided with a limiting groove that matches the limiting protrusion (336). Each mounting ring (334) is fixedly connected through a plurality of connecting plates (3311). Any plurality of connecting plates (3311) are fixedly connected with a bracket (332). The plurality of brackets (332) are fixedly connected to a push plate (333). The push plate (333) is fixedly connected to the output end of a plurality of electric push rods (331). Each electric push rod (331) is fixedly connected to a mounting frame (32).

8. The laying device of the EVA waterproof board for underground engineering according to claim 1 is characterized by: The repair component (31) comprises a movable opening formed in the mounting plate (13), a movable plate (312) being slidably connected in the movable opening, the lower end of the movable plate (312) being fixedly connected to the output end of an electric push rod (311), the electric push rod (311) being fixedly connected to the mounting plate (13), a screw rod (313) being rotatably connected between the front and rear movable plates (312) and a guide rod (314) being fixedly connected thereto, two movable seats (315) being threadedly connected to the screw rod (313), and the two movable seats (315) being slidably connected thereto together. The two movable seats (315) are connected to the guide rod (314), the spacing between the two movable seats (315) is half of the front-to-back direction of the trapezoidal frame, one end of the screw rod (313) extends to the outside of the movable plate (312) and is fixedly connected to the output end of the motor three (316), the motor three (316) is fixedly connected to the outside of the corresponding movable plate (312), a connecting pipe is installed on the front movable seat (315), the connecting pipe is communicated with the external high-pressure transmission system, a plurality of nozzles (36) are installed on the connecting pipe, and a short waterproof board coil (221) is installed on the rear movable seat (315).

9. The laying device of the EVA waterproof board for underground engineering according to claim 1, characterized in that: A plurality of pedals (12) are fixedly connected at equal distances to the left and right sides of the trapezoidal frame and to the outer sides of the left and right bottom supports.

10. The laying device of EVA waterproof board for underground engineering according to claim 1, characterized in that: The front and rear sides of the trapezoidal body frame are fixedly connected with an arc-shaped guide frame (23), an arc groove (231) is provided in the arc-shaped guide frame (23), and two telescopic arms (2) distributed on the left and right are slidably connected in the same arc groove (231) through a sliding pin.

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