2923 results about "Water stop" patented technology

The invention discloses a panel vertical seam water stop structure repair effect evaluation method, which comprises the following steps of: firstly, synchronously obtaining surface crack and internal defect data through cooperative detection of infrared thermal imaging and ultrasonic flaw detection; and carrying out space alignment on point cloud data generated by three-dimensional laser scanning and an ultrasonic detection result, and establishing a BIM model containing a crack three-dimensional form. A practical engineering environment is simulated in a laboratory to carry out material accelerated aging and test key indexes such as an elastic recovery rate, a base surface state is evaluated through a temperature and humidity sensor array in a construction stage, a six-axis grouting robot is adopted to execute accurate filling, a curing process is monitored by a synchronous pre-embedded optical fiber sensor, and after aging is simulated by combining a hydraulic test with climate, a construction period is shortened. A distributed optical fiber network is used for continuously collecting deformation data, a comprehensive evaluation model is constructed based on mechanics, durability and sealing indexes, and finally material selection and process parameters are optimized through machine learning.

The invention discloses an underground building bottom plate advanced water stop post-cast strip structure which comprises a cushion layer concrete layer, other waterproof layers are arranged on the cushion layer concrete layer, and waterproof layer protection layers are arranged on the other waterproof layers. An earthwork groove is formed in the cushion layer concrete layer, same-bottom-plate steel bar layers are arranged on the two sides of the earthwork groove, and a waterproof assembly used for preventing water is arranged between the same-bottom-plate steel bar layers. A bottom plate bottom layer steel bar layer is arranged at the upper end of the same bottom plate steel bar layer, and two mud blocking assemblies are installed on the bottom plate bottom layer steel bar layer. A post-cast strip groove is formed between the two lower fast-easy closing-in nets and the two upper fast-easy closing-in nets, and a supporting part used for supporting is arranged in the post-cast strip groove. The lower fast and easy closing-in net and the upper fast and easy closing-in net can be supported, the stability of the lower fast and easy closing-in net and the stability of the upper fast and easy closing-in net can be improved during bottom plate concrete pouring, and then the stability of the overall structure is improved.

A remaining needle water stop clamp is integrally in a C shape and comprises a left portion, a middle portion and a right portion which are sequentially fixed together, a left through hole is formed in the left portion, a right through hole is formed in the right portion, a hose can pass through the left through hole and the right through hole, a guide tube is fixed to the inner wall of the left portion, and the axis of the guide tube coincides with the axis of the left through hole. Compared with the prior art, the hose fixing device has the technical effects that the guide tube is arranged, so that the radial direction of the hose is restrained, the hose can be prevented from deviating, and the hose can be conveniently blocked by the clamping block.

The invention discloses a buoyancy pipe penetrating construction method, which is characterized in that a water source is used as a medium between an outer sleeve and an inner penetrating pipe, so that the smoothness of the construction process is ensured, and an inlet hole water stopping device and an outlet hole water stopping device are respectively arranged at two ends of the outer sleeve and are used as a sealing system of the water source. In addition, a limiting device, a limiting roller and an anti-collision roller are installed at the position of the inlet hole, the inner wall of the outer sleeve and the end of the inner penetrating pipe respectively. And finally, the inner penetrating pipe is smoothly pushed into the outer sleeve under the action of buoyancy. The problems that in a traditional roller launching method, a method for installing trundles on the outer wall of a pipeline and a pulley block propelling method, the roller structural strength is insufficient, durability is poor, and an outer anticorrosive coating of the pipeline is prone to being damaged are effectively solved, and the method is particularly suitable for large-diameter and long-distance inner penetrating pipe construction with the high requirement for finished product protection; and the method has good economical efficiency and implementation effect.

The invention discloses a freezing pipe relative position adjusting structure for inter-pile freezing water stop, which comprises an inner ring stirrup, the inner ring stirrup is fixed on the inner ring of an outer ring stirrup of a reinforcement cage, a freezing pipe is positioned between the inner ring stirrup and the outer ring stirrup, and a driving device drives the freezing pipe to move around the inner ring stirrup so as to adjust the relative position of the freezing pipe. The operation of lowering the freezing pipe along with the reinforcement cage is transformed, the position of the freezing pipe is adjusted through the driving motor, the accuracy can be guaranteed in the lowering stage, and after lowering is finished, the freezing pipe can be precisely and secondarily adjusted through the driving motor according to the inclination measurement result of the vertical hole, so that the accuracy is further guaranteed; the high-precision requirement for lowering the freezing pipe in the reinforcement cage can be met, and compared with the situation that multiple workers need to repeatedly adjust the lifting point and prize and correct in alignment in traditional construction, the labor cost and the alignment time are greatly saved.

The invention relates to the technical field of color steel plate roofs, in particular to a leakage-proof color steel plate roof connecting structure and a mounting method thereof.By arranging pressing strips and sealing strips, the connecting ends of adjacent color steel plates can be pressed and sealed, so that water seepage at the joints of the adjacent color steel plates is effectively avoided, and the service life of the color steel plates is prolonged. And through the arrangement of the ridge plate, the rubber pressing strip and the water stop strip, the connecting end of the two color steel plate roofs can be sealed, so that the situation of ridge water leakage is prevented, and the use effect is good.

The invention relates to a construction process of a joint occlusion water stop reinforced ultra-deep hectometer-level milling groove ground wall. The construction process comprises the working procedure steps of grooving, groove bottom sediment treatment, reinforcement cage hoisting, guide pipe lowering, bottom sealing concrete pouring, broken stone backfilling, joint box hoisting, overall concrete pouring and the like. Grooving adopts a grabbing and milling combined process and is divided into a first-stage groove section and a second-stage groove section, the first-stage groove is designed to be full-head scutching and two-cutter grooving, H-shaped steel water stop joints are arranged at the two ends of a reinforcement cage, the reinforcement cage is fully wrapped with anti-streaming slurry stop iron sheets, after the reinforcement cage is hung in sections, bottom sealing concrete is poured, broken stones are backfilled and compacted, and pouring is continued to form a wall body. The second-stage groove is designed to be in a full-closed range, three-knife grooving is conducted, and after a wall brushing device is adopted at the joint for wall brushing, remaining procedures are completed. And the first-stage groove and the second-stage groove are constructed in a sequence of a warehouse jumping method, and a continuous wall body is formed in a circulating manner. According to the process, the existing ultra-deep casing milling joint ground wall construction process is innovated, and the problems that the casing milling joint is low in concrete milling speed, poor in water stopping effect, large in reinforcement cage hoisting weight and the like are solved.

The invention relates to the technical field of shield tunneling machine disassembly, and particularly discloses a modular disassembly, disassembly tool and method for a shield tunneling machine in a tunnel. The tool comprises a tool body, the tool body comprises an upper mounting frame and a lower mounting frame, and a support is arranged between the upper mounting frame and the lower mounting frame; two lifting plates are arranged on the upper mounting frame, and through holes are formed in the lifting plates; rollers are arranged at one end of the lower mounting rack away from the hoisting section; the tool can improve the dismounting efficiency; the method comprises the steps that S1, the water stop hoop is poured; s2, dismounting the cutter head; s3, propelling, and dismounting a hinged oil cylinder; s4, the duct piece trolley is disassembled; s5, the shield tunneling machine is electrically disassembled; s6, disassembling a hydraulic fluid pipeline; s7, the spiral conveyor is dismantled; s8, the segment erector is disassembled and transported; s9, dismounting and transporting the *-shaped beam; s10, dismounting and transporting a main driving speed reducer and a motor; s11, the man bin is dismantled; s12, disassembling the main drive; the construction method can help to ensure the smooth implementation of the dismounting process and improve the construction efficiency.

The invention provides a sealing structure of a floating tunnel pipe joint, which comprises a pipe joint I, a pipe joint II and a multi-layer sealing structure, the multi-layer sealing structure comprises a waterproof protection device fixedly connected with the pipe joint I and the pipe joint II and a multi-layer water stop structure arranged on the inner side of the waterproof protection device, and the multi-layer water stop structure is connected with the pipe joint I and the pipe joint II; the multi-layer water stop structure sequentially comprises a first water stop structure, a second water stop structure and a third water stop structure from outside to inside. And by arranging the waterproof protection device, the effectiveness and durability of the water stop structure are improved. And the rubber composite part is arranged at the end part of the metal water-stop belt, so that the reliability of connection between the first water-stop structure and the pipe joint is improved. The inflatable airbag is arranged in the center of the rubber body of the second water stop structure, so that the effectiveness of the sealing structure of the second water stop structure is improved. And a fixed press-fitting device is arranged in the third water stop structure, replacement is achieved by adjusting the tightness of a nut, and convenience and rapidness are achieved. The invention further provides a sealing method of the floating tunnel pipe joint connector.

A water stop member includes an annular main body that is coaxially brought into contact with an annular wall surface on a circumference portion side of a through-hole of a flange of a base member, an annular outer circumferential lip that is protruded toward the circumference portion, bend-deforms at the attachment completion position, and is brought into close contact with an annular plane of the circumference portion over one circumference, and an annular inner circumferential lip protruded toward the circumference portion in such a manner as to get closer to a hole axis of the through-hole as coaxially getting closer to the circumference portion from an inner circumference portion side than the outer circumferential lip of the main body, bend-deforms at the attachment completion position, and is brought into close contact with the annular plane side of the circumference portion over one circumference.

The invention relates to the technical field of underground water prevention and control, in particular to a tunnel two-step grouting plugging method for wide crack water gushing, which comprises the following steps of: constructing a grouting hole intersected with a wide crack or a concentrated water gushing channel according to a geological survey result; first rapid plugging slurry is injected into the crack through the grouting hole, and the first rapid plugging slurry can form a temporary water stopping barrier in the flowing water environment; the water outlet amount change and the grouting pressure change of the adjacent observation holes are monitored, and when the water outlet amount is remarkably reduced and / or the grouting pressure stably rises and forms a platform, it is judged that the temporary water stop barrier is formed; and second reinforcing grout is injected into the crack through the grouting holes, and after the second reinforcing grout is solidified, a permanent reinforcing body with mechanical strength is formed. By optimizing the grouting material and the process time sequence, effective combination of rapid plugging and long-term reinforcement is achieved, the grouting reliability is improved, and the engineering cost is reduced.

The utility model discloses a steel-concrete combined hanging box wall plate water stopping and slab staggering preventing connecting structure which comprises a plurality of pairs of C-shaped pieces and a plurality of I-shaped pieces, each pair of C-shaped pieces is fixedly installed on a hanging box wall plate used for being matched with the connecting structure for use, and each hanging box wall plate comprises a plurality of sections of steel plate piles which are sequentially arranged; the steel sheet pile comprises a first steel sheet pile section, a middle steel sheet pile section and a tail steel sheet pile section, a connecting cavity is formed between the first steel sheet pile section and the tail steel sheet pile section, all pairs of C-shaped pieces are arranged in the diameter direction of the hanging box, and the two C-shaped pieces in the same pair are installed on the first steel sheet pile section and the tail steel sheet pile section correspondingly; openings of the C-shaped pieces are formed in the sides close to each other, and the I-shaped pieces are inserted into the two C-shaped pieces in the same pair at the same time through the openings of the two C-shaped pieces. The water stop structure has a good water stop effect on the wall plate connecting section.

The invention discloses a water conservancy project water retaining construction water stop anti-seepage device which comprises a water stop plate, a switching assembly, a supporting assembly and a stretching assembly, one side of the water stop plate is fixedly connected with a positioning frame, the interior of the water stop plate and the interior of the positioning frame communicate with each other, and the two ends of one side of the water stop plate are each provided with a vertical groove allowing the supporting assembly to be unfolded. Scraping plates are fixedly connected to the two sides of the water stop plate and correspond to the stretching assemblies in position. By arranging the supporting assembly, the water stop plate is supported, and meanwhile the load borne by the water stop plate is effectively dispersed; by arranging the stretching assembly, plugging and water stopping are achieved by self-adaption to the width of the water channel, the stretching process has self-locking performance, and the risk that water flow leaks at the gap is further effectively reduced; and by arranging the switching assembly, the device is automatically switched to the water channel plugging operation after completing the supporting and unfolding operation, so that the operation amount of personnel is effectively reduced, and the working efficiency of the device is improved.

The invention discloses a building expansion joint anti-seepage drainage mechanism, and relates to the technical field of expansion joint waterproofing, the building expansion joint anti-seepage drainage mechanism comprises two floors and a water stop belt, an expansion joint is arranged between the two floors, the water stop belt is arranged on the expansion joint between the two floors, a waterproof cover plate is arranged above the water stop belt, and the waterproof cover plate is arranged above the expansion joint. A flow guide fixing device is arranged below the floor slab, a suspension moving device is arranged below the floor slab, an alarm waterproof device is arranged below the suspension moving device, a plurality of collecting hoppers are arranged below the alarm waterproof device, and drainage branch pipes are fixedly arranged at discharging ports of the collecting hoppers. A collecting pipe is fixedly arranged at a discharge port of the branch drainage pipe, and a main drainage pipe is fixedly arranged on the collecting pipe. The expansion joint is subjected to first waterproofing through the water stop belt, the flow guide fixing device has the flow guide effect on leaked rainwater, and the alarm waterproof device has the effects of collection and alarm.

The invention relates to a water stop structure for a vertical jacking construction method, a tunnel structure and a tunnel construction method. The structure comprises a water stop frame which is arranged on the inner side of a tunnel segment and surrounds a segment opening by a circle, and further comprises a sealing ring, an oil immersion packing unit and a grouting hole, a first check block is arranged on the inner side wall of the water stop frame, and a sealing area is formed among the first check block, the water stop frame and a vertical pipe mechanism; the sealing ring and the oil immersion packing unit are respectively extruded and filled in the sealing area, the sealing ring is positioned above the oil immersion packing unit, and the grouting hole is formed in the inner side wall of the water stop frame and is communicated with the sealing area. The inner side wall of the water stop frame is provided with the sealing ring, the grouting hole and the oil immersion packing, the waterproof effect is good, and seawater leakage in the jacking process and after jacking can be avoided; the grouting holes and the oil-immersed packing are arranged in a combined mode, the oil-immersed packing is not dismantled in the construction period, the leakage risk in the construction period is avoided, and the oil-immersed packing is used for temporary water stopping and also used for water stopping in the operation period.

The utility model discloses a rubber water-stop strip component convenient to install, which comprises a rubber water-stop strip body, sealing plates are fixedly connected to two sides of the rubber water-stop strip body, profile steel is arranged on two sides of the rubber water-stop strip body, a clamping groove is arranged on the front side of the profile steel, a clamping strip is arranged in an inner cavity of the clamping groove, and the rubber water-stop strip body is fixedly connected with the clamping strip. Connecting plates are fixedly connected between the clamping strips and the sealing plates, mounting grooves are formed in the front face and the back face of the profile steel, and baffles are arranged on the front face and the back face of the profile steel. The clamping strips can be clamped into the clamping grooves through the clamping grooves for quick connection, the clamping strips are subjected to limiting connection through the baffles, and compared with a traditional mode that a rubber water stop strip body is pried and plugged into a profile steel groove point by point through a wrench, the clamping type limiting connection is more convenient, time-saving and labor-saving; aging of the rubber water-stop strip can be reduced, the service life of the rubber water-stop strip is prolonged, and people can use the rubber water-stop strip conveniently.

The present invention discloses a water-stopping device for water conservancy project construction, which relates to the technical field of water conservancy equipment, and comprises a water-stopping plate, a loading tube is fixedly installed on the outer wall of the water-stopping plate, a ground pile is slidably installed on the inner wall of the loading tube, a rectangular groove is provided inside the water-stopping plate, a C-shaped groove is provided on the inner wall of the rectangular groove, and an extension device is also included; wherein the extension device comprises a rectangular plate, a lifting cylinder, a gripping rod, a No. 1 spring, a contact block, a pushing plate, a No. 2 spring, a rubber plate and a resisting plate, the rectangular plate is slidably installed inside the rectangular groove, the lifting cylinder is slidably installed inside the rectangular plate, the kinetic energy is increased when the No. 2 spring is restored, the efficiency of the unfolding of the rectangular plate is effectively improved, and then the initial velocity of the No. 2 spring when it is reset is slowed down, which helps to improve the safety of the staff in the water-stopping preparation work.

The invention discloses a basement post-cast strip structure which comprises a pit slot and is characterized in that a concrete cushion layer is arranged in the pit slot, a waterproof layer is arranged on the concrete cushion layer, a water stop caulking plate is arranged on the waterproof layer, positioning structures are symmetrically arranged on the two sides of the water stop caulking plate, a supporting screw rod is installed on each positioning structure, and the supporting screws are connected with the pit slot. The number of the supporting screw rods is multiple, every two supporting screw rods are connected with the water stop steel plates in a sleeved mode, each water stop steel plate is fixed through the corresponding plugging structure, each plugging structure is provided with the corresponding supporting structure, the waterproof layer is covered with the water-pressure-resistant cushion layer, and a reinforcing structure is arranged in the water-pressure-resistant cushion layer. The positioning structure, the blocking structure, the supporting structure, the reinforcing structure and the like are used for assisting the water stop steel plate, so that a continuous and compact waterproof blocking structure is formed, permeation of underground water is effectively prevented, and the underground part of a building is protected against damage of water.

The application provides a tunnel lining cushion permeation characteristic test device and method, which comprises a constant pressure water supply system, a tunnel lining cushion simulation system, an outflow monitoring system and a mechanical water stop system. The constant pressure water supply system is located above the tunnel lining cushion simulation system, and pure water flows to the tunnel lining cushion under constant pressure through the constant pressure water supply system. The outflow monitoring system is located below the tunnel lining cushion simulation system, and the pressure outside the tunnel lining cushion is monitored in real time under the condition that the water flow is free to overflow. The mechanical water stop system realizes water stop of the contact positions of the above three different systems through a simple and effective mechanical structure. The test device can simulate the cushion seepage process under the influence of single factor or multiple factors such as different lining crack sizes, lining gap sizes and cushion blockage degrees. The application has a clever structure design and a simple method, and provides technical support for the test research of the tunnel lining cushion permeation characteristics.

The utility model relates to the technical field of hydrogeological exploration, in particular to a coal field hydrogeological exploration layering water stopping device which comprises a fixing box, a pipeline is fixedly installed on the top of the fixing box, and the bottom end of the pipeline penetrates through the top of the fixing box and extends to the position below the bottom of the fixing box. According to the layered water stopping device for coal field hydrogeological exploration, through cooperative use of the fixing box, the pipeline, the first water stopping plate, the second water stopping plate, an annular sealing rubber belt, an adjusting lead screw, a limiting rod, an annular extrusion plate, a motor, a worm and a worm gear, the annular extrusion plate is controlled to move downwards to extrude the annular sealing rubber belt; the water stop plates are deformed to fill gaps around the first water stop plate and the second water stop plate, so that water leakage is effectively prevented, and the water stop effect of each layer is ensured. By extruding the annular sealing rubber belt, the device can achieve an effective sealing effect, and the annular sealing rubber belt is relatively low in manufacturing cost and is more economical and practical.

The present invention discloses a water-stopping and anti-seepage device for water retaining construction of a water conservancy project, comprising a water stop plate, a switching component, a support component and an extension component, one side of the water stop plate is fixedly connected with a positioning frame, and the insides of the water stop plate and the positioning frame are interconnected, both ends of one side of the water stop plate are provided with vertical grooves for the support component to unfold, and both sides of the water stop plate are fixedly connected with scrapers, and the scrapers correspond to the extension component. The present invention provides support to the water stop plate while effectively dispersing the load on the water stop plate by setting a support component; by setting an extension component, the width of the water channel is adaptively adjusted to achieve blocking and water stopping, and the extension process has self-locking properties to further effectively reduce the risk of water leakage at the gap; by setting a switching component, the device automatically switches to the water channel blocking operation after completing the support unfolding operation, effectively reducing the amount of operation of personnel to improve the working efficiency of the device.

The floor penetrating sleeve structure comprises an original structural plate, a hole is formed in the original structural plate, a floor penetrating sleeve is arranged in the hole in the original structural plate in a penetrating mode, and a water stop ring connected with the floor penetrating sleeve in a sealed mode is arranged in the middle of the wall of the floor penetrating sleeve in the circumferential direction. The water stop ring is located at the top of the hole and is in sealed connection with the edge of the hole, and the wall of the floor penetrating sleeve is in sealed connection with the inner wall of the hole through a sealing structure. The invention further discloses a construction method of the floor penetrating sleeve structure for post-trepanning construction. The method can be used for quickly and conveniently carrying out post-positioned floor penetrating sleeve construction, and can be widely applied to the field of mechanical and electrical installation of constructional engineering.

The invention relates to a precast concrete sheet pile water stop structure. Grooves are formed in the splicing faces of the two sides of a sheet pile, and connecting pieces are arranged on the grooves; the connecting piece comprises a fixing part, a connecting part and water stopping parts, the two ends of the connecting part are connected with the fixing part and the water stopping parts correspondingly, the fixing part is located in the grooves and connected with the sheet pile, and the two water stopping parts on the two opposite grooves are matched with each other and form a first face and a second face which are attached to each other; the first surface is provided with at least one convex peak, and the second surface is provided with a concave valley matched with the convex peak. The prefabricated concrete sheet pile water stop structure has the following advantages that the first face and the second face are attached, it is guaranteed that the two water stop parts are tightly combined, and water seepage is prevented; compared with traditional grouting water stopping, construction is complex, cost is high, the connecting piece can be installed in advance, after the sheet piles are spliced, the first face and the second face are attached to each other, and the sheet piles are automatically pressed and closed under the back side water and soil pressure to achieve the good water stopping effect.

The utility model discloses a reinforced comb tooth type vibration and noise reduction maintenance-free expansion joint structure, and relates to the technical field of bridge expansion joint structures, in particular to the reinforced comb tooth type vibration and noise reduction maintenance-free expansion joint structure which comprises a base, a water stop belt and a strip-shaped plate, and a cavity block is installed at the top of the base. According to the reinforced comb tooth type vibration and noise reduction maintenance-free expansion joint structure, through the arrangement of a water stop belt, a strip-shaped plate, a cavity block, a limiting spring, a positioning sliding block, a limiting rod, a pulling plate, a positioning block, a connecting rod, a pressing plate and a clamping block, the reinforced comb tooth type vibration and noise reduction maintenance-free expansion joint structure has the effect that the water stop belt is convenient to disassemble and replace; the clamping block plays a positioning role, the position of the water stop belt is limited through downward pressing of the pressing plate, the position of the positioning block is limited through the limiting rod, installation of the water stop belt is facilitated, on the contrary, rapid disassembly of the water stop belt is facilitated, and the purpose of improving practicability is achieved.

The utility model discloses a water stopping device and system for underground water layered monitoring, the water stopping device comprises a base body column and a water swelling rubber layer, and the water swelling rubber layer is arranged on the side surface of the base body column; the guide rings are arranged on the upper side and the lower side of the base body column and used for limiting the water swelling rubber layer; and the hollow pipe penetrates through the base body column and the guide ring. The defects that current single-hole layered monitoring work is mostly achieved through variable-diameter hole-forming construction or water stop plugs, but the variable-diameter hole-forming construction or the water stop plugs are large in occupied area, high in manufacturing cost, limited in monitored target layer and incapable of or not suitable for long-time water stop are overcome. The water swelling rubber layer containing the sodium polyacrylate super absorbent resin is adopted as a water stop material, the monitoring probe is lowered to a water-resisting layer between different water-bearing layers in cooperation with the connecting rod, and permanent monitoring of the multi-target water-bearing layer is achieved.

The utility model provides a post-cast strip water stopping and plugging structure which comprises a structural steel bar, a water stopping steel plate, a fixing device, a reinforcing piece and a connecting piece, and the water stopping steel plate is parallel to the structural steel bar. The fixing devices abut against the two sides of the water stop steel plate in the thickness direction correspondingly, are aligned with the contour line of the to-be-poured structure and are connected with structural steel bars in a clamped mode. The two ends of the reinforcing pieces are connected to the fixing devices on the two sides of the same waterstop steel plate. The two ends of the connecting piece are connected to the corresponding reinforcing pieces on the two sides of the post-cast strip respectively. According to the utility model, the fixation of the water stop plate and the installation of the plugging structure are combined, the construction process is simplified, the installation and the disassembly are convenient, and the construction efficiency is improved; the fixing device and the water stop steel plate are tightly connected to form a plugging structure, so that good integrity and stability are achieved, and the concrete pouring quality effect of the post-cast strip part is improved; and the fixing device, the reinforcing piece and the connecting piece can be recycled, so that the construction cost is reduced.

The invention relates to the technical field of assembly type buildings, and discloses an assembly type wallboard windowsill coping water stop device which comprises a concrete water stop belt formed on the top face of a windowsill coping, and further comprises a transverse plate fixed in the assembly groove, gaps are reserved between the two sides of the transverse plate and the groove walls of the two sides of the assembling groove respectively; the rubber belt is placed in the assembling groove; the pressing piece is formed on the bottom face of the window frame and used for being pressed on the rubber belt between the side wall, close to the interior of the window, of the transverse plate and the groove wall of the assembling groove. One end of the inclined water diversion plate is inserted into the pressing piece, the other end of the inclined water diversion plate is located outside the window, and the rubber belt located at the top of the transverse plate is pressed below the inclined water diversion plate. The technical problems that in the prior art, a water stop mode of a water stop belt on a windowsill coping is simple, and the water stop effect is common are solved, the water stop belt and a window frame are assembled to form a water stop device, the sealing performance between the water stop belt and the window frame is enhanced, and the water stop effect of the windowsill coping is improved.

The utility model discloses a prefabricated concrete well section connecting structure which comprises a first well section, a second well section arranged on the first well section, a well cover arranged on the second well section, a ladder stand arranged on the first well section and the second well section, a connecting notch and a connecting structure, the connecting structure is arranged at the connecting notch and used for connecting the first well section and the second well section. According to the connecting structure between the prefabricated concrete well sections, a new tongue-and-groove butt joint mode is adopted, the self water blocking effect of the connecting notches is enhanced through gap meshing, the water swelling rubber water stop strips are arranged in the connecting notches, the waterproof effect is further enhanced, meanwhile, asphalt sealant is smeared on the inner construction joints and the outer construction joints of the well sections, and the direct waterproof effect is achieved; and after the well sections are installed in place, annular rake nails are arranged outside the well sections, the well sections are effectively restrained, and the integrity of the shaft is enhanced.

The utility model relates to the technical field of building construction, in particular to a roof double-layer inner drainage device which comprises a base layer and further comprises a pre-buried downpipe buried in the base layer, an annular wing plate is horizontally fixed to the top end of the outer side wall of the pre-buried downpipe, and the lower surface of the annular wing plate is attached to the upper surface of the base layer. A water stop ring is horizontally fixed to the outer side wall of the pre-buried downpipe and buried in the base layer, an inner drainage pipe is inserted into the pre-buried downpipe, a protective cover is installed at the top end of the inner drainage pipe, a positioning clamping ring is horizontally arranged on the outer side wall of the inner drainage pipe, and the lower surface of the positioning clamping ring is attached to the upper surface of the annular wing plate. The problems that according to an existing downpipe drainage system, the heat preservation performance is reduced and mildewing is caused due to the fact that water accumulation in a heat preservation layer cannot be effectively treated, accumulated water permeating into a roof from the roof damages a building structure, and a downpipe is prone to being blocked are solved.