309 results about "Water tightness" patented technology

The invention relates to the technical field of ship construction, and discloses a ship annular block assembly method, which comprises the following steps of: drawing a corresponding ship body center line, a ship body longitudinal section line, a ship body rib detection line and a ship body waterline in an overall design drawing of a ship body according to the actual segmentation condition of the ship body; marking is correspondingly drawn on the built bottom section, the built broadside section and the built transverse bulkhead section in sequence as the basis; a bottom center line, a bottom rib detection line, a broadside longitudinal section line, a broadside rib detection line, a transverse bulkhead center line and a transverse bulkhead rib detection line are used for alignment and adjustment to replace data measurement of closure openings in the prior art so as to achieve alignment and butt joint of the closure openings. The problem that the alignment precision is poor due to the fact that a closing opening data measuring instrument cannot be arranged due to the narrow total assembly site is solved, the total assembly precision is guaranteed, and then the structural strength, water tightness and overall precision of a ship body are guaranteed.

The invention discloses a construction method for prefabricating and assembling a seabed energy storage tank through prestress, and belongs to the technical field of structural engineering. The energy storage tank comprises a plurality of sub-spherical shell units and prestressed reinforcements. The construction method comprises factory prefabrication and field assembly processes of the plurality of sub-spherical shell units. The sub spherical shell units are made of common concrete or ultra-high performance concrete or ultra-high toughness concrete, PVC or metal corrugated pipes used for allowing prestressed steel bars to penetrate through are pre-buried in the shell framework, and anchorage device positioning grooves are reserved in the edges of the shell framework. A plurality of sub spherical shell units are sequentially spliced on site, high-strength prestressed steel bars are arranged in a pipeline in a penetrating mode and are tensioned in a segmented mode, anchorage devices are installed at the ends of the steel bars for fixing, and an overall spherical structure is formed. And sprayed concrete materials are applied to the joints and the positioning grooves for sealing, so that a closed energy storage spherical tank structure is formed. The method is suitable for an energy storage system in a deep sea high-pressure environment, and has the characteristics of simple and convenient construction process and good structural integrity and water tightness.

The utility model belongs to the technical field of inflatable boats, and discloses a high-pressure rapid inflation system for an inflatable boat and the inflatable boat. The inflation system is applied to the inflatable boat, in the process of throwing the inflatable boat to the sea surface, the stop valve is triggered to open the first air supply pipeline, high-pressure air in the high-pressure air cylinder is released instantly, and the high-pressure air is conveyed to a boat body of the inflatable boat through the first air supply pipeline, a first air inlet connector of the diverter valve, an air outlet connector of the diverter valve and the inflation pipeline; the boat body of the inflatable boat can be quickly filled with air, so that the time is greatly shortened, and the rescue efficiency is improved; the inflatable boat basically floats on the sea surface after being launched, and the requirements for water tightness and air inlet design of the electric air supplementing pump part are low; the pressure transmitter monitors the gas pressure in real time, and when the pressure of the air chamber of the inflatable boat body is lower than a set value, the control unit triggers the electric air supplementing pump to start to supplement air to the air chamber of the boat body of the inflatable boat through the second air supply pipeline, the second air inlet connector of the diverter valve, the air outlet connector of the diverter valve and the inflation pipeline.

The utility model provides a cabin-penetrating cable tube assembly and a ship with the cabin-penetrating cable tube assembly, the cabin-penetrating cable tube assembly comprises a cabin-penetrating tube, two ends of the cabin-penetrating tube are both provided with first waterproof sealing members capable of expanding when encountering water, the first waterproof sealing members are used for filling a gap between a cable and the tube wall of the cabin-penetrating tube, and a filler cavity is defined by the cabin-penetrating tube and the two first waterproof sealing members; and the filling cavity is used for being filled with a waterproof sizing material, the waterproof sizing material located in the filling cavity forms a second waterproof sealing piece after being cured, and injection holes and exhaust holes which are distributed at intervals are formed in the pipe wall of the cabin penetrating pipe and communicate with the filling cavity. According to the cabin-penetrating cable pipe assembly and the ship with the cabin-penetrating cable pipe assembly, the watertight performance of the cabin-penetrating pipe is improved, meanwhile, the whole cabin-penetrating pipe does not need to be filled with filler, the using amount of the filler and the filling operation difficulty of the filler in the cabin-penetrating pipe are reduced, and then the waterproof sealing cost of the cabin-penetrating pipe is reduced.

The invention relates to a door and window safety performance detection device for constructional engineering, and belongs to the technical field of constructional engineering detection. The uniformly distributed load force application assembly can apply uniform or gradient change pressure to the whole surface of the door and window to simulate wind pressure; the concentrated load force application assembly can perform fixed-point impact on specific parts of doors and windows and simulate hard object impact or violent forcible entry; the wind pressure loading assembly applies uniform and gradient-adjustable wind pressure loads to the surfaces of doors and windows, simulates stress states under different wind levels and detects the air tightness of the doors and windows, and the rainfall simulation assembly simulates rainfall environments with different strengths to detect the water tightness of the doors and windows; the deformation of doors and windows, the stress of key parts of the doors and windows, the water leakage condition and the air leakage condition can be monitored, and the comprehensiveness and the real-time performance of detection data are ensured. The system can achieve the detection of multiple safety performance dimensions of the doors and windows of the constructional engineering, effectively improves the detection efficiency and precision, reduces the manual operation intervention, and provides a comprehensive and reliable data support for the safety performance evaluation of the doors and windows.

The invention discloses a container structure and a manufacturing method thereof. The container structure comprises a wall frame and a bottom frame. The underframe comprises a bottom side beam, an end bottom beam and a steel floor; the bottom side beam and the end bottom beam are respectively provided with a first connecting surface and a second connecting surface which extend along the horizontal direction; wherein the extension directions of the first connecting surface and the second connecting surface are opposite, and the second connecting surface extends towards the inner side direction of the wall body frame; the first connecting face and the second connecting face are used for being welded and fixed to the wall frame and the steel floor correspondingly. Through the arrangement, a bottom cross beam does not need to be arranged, so that the material cost of steel is correspondingly reduced, the number of welding beads can be reduced, the labor cost and operation difficulty of welding operation are reduced, the production efficiency is improved, meanwhile, the water leakage risk caused by welding bead sealing defects is effectively reduced, and the water tightness requirement of the water storage type container is met.

The utility model discloses a regenerated wrought aluminum alloy door and window, which comprises a door and window mechanism, a reinforcing mechanism and a sealing mechanism, and the door and window mechanism comprises a frame, glass arranged in the frame and the reinforcing mechanism, the reinforcing mechanism comprises a plurality of sealing plates clamped to the side edges of the frame, a plurality of memory alloy pieces attached to the inner side walls of the sealing plates and a plurality of abutting plates attached to the outer edge of the glass, and the abutting plates are attached to the inner sides of the memory alloy pieces correspondingly. According to the utility model, under high temperature weather, the memory alloy sheet increases the volume, and then when the abutting plate is extruded, the insertion rod is led to move and is inserted into the insertion hole, so that the insertion rod opens the rubber pad and the rubber pad is uniformly attached to the surface of the glass, and the dynamic compensation can timely sew and repair a gap, improve air-tight seal and water tightness and ensure the sealing effect.

The invention relates to the technical field of building construction, in particular to a kitchen flue hole-lifting-free integrated construction method which comprises the following steps: S1, optimizing a flue hole; s2, the flue formwork is reinforced; s3, concrete pouring; s4, a flue is installed; s5, node sealing treatment is carried out; and S6, performing a closed water test. According to the method, the size of the reserved flue hole is optimized to be matched with the inner overall size of the finished flue, the finished flue can be directly placed on a building structure floor when being installed, and compared with traditional hole hanging method construction, the construction step of filling the fit clearance between the finished flue and the reserved flue hole with concrete is omitted, the construction efficiency is improved, and the construction cost is reduced. Therefore, the forming quality of concrete at the butt joint part of the reserved flue hole and the finished flue is higher, and the risk of leakage of a building floor is reduced.

The invention relates to the technical field of external window water tightness testing, in particular to an external window water tightness testing method and an external window water tightness testing device. The external window water tightness testing method comprises the steps that S1, a hanging mechanism is installed on a fixing mechanism, a water conveying pipe of a sprayer is detachably and movably connected to the fixing mechanism, and the water conveying pipe of the sprayer is detachably connected to the upper portion of the hanging mechanism; s2, hanging a hanging mechanism at the top of a windowsill wall above the outer window to be detected, and enabling a spray head of a sprayer to face the outer side part of the outer window to be detected; s3, a water conveying pipe is communicated with a water supply device, then the water supply device is turned on, and a spraying head sprays water to the outer side of the to-be-detected outer window; s4, after preset time, the water supply device is closed, and then the water seepage condition of the inner side of the outer window to be detected is checked. The water tightness test result of the outer window water tightness test method is more accurate.

The invention discloses a method for replacing a ship candling copper pipe. The method comprises the steps that a water leakage copper pipe is determined; a rod with self-tapping threads is adopted to be inserted into one end of the to-be-replaced copper pipe, and the rod is drawn to repeatedly impact the to-be-replaced copper pipe till the to-be-replaced copper pipe is loosened; when the to-be-replaced copper pipe is loosened, the chain is connected with the other end of the to-be-replaced copper pipe, the rod is pulled, and the to-be-replaced copper pipe and the chain are pulled out together; a chain is connected with the new copper pipe, the chain is drawn, the new copper pipe is inserted into a flange hole of a ship cantor, and the chain is detached; and the water tightness is improved. According to the method, a damaged copper pipe located in a partition is found in a reverse back pressure mode, the damaged copper pipe is stably attached to the wall of a bobbin through self-tapping threads of a rod, then the rod is drawn, the copper pipe is separated from a hole in the end face of a flange through vibration, a new copper pipe is installed through a chain with a guiding function, and the task of replacing the copper pipe is safely and effectively completed; and the quality of the ship after replacement is ensured.

The invention belongs to the technical field of ocean engineering and bridge tunnel engineering, and relates to a connector dynamic water tightness test device and method for simulating the motion state of a floating tunnel, and the test device comprises fixed platforms located at the two ends and used for simulating a relatively stable section of the floating tunnel; the six-degree-of-freedom platform is positioned in the middle section and is used for simulating an unstable section of the floating tunnel; the flexible bag wraps the joint of the floating tunnel on the fixed platform and the floating tunnel on the six-degree-of-freedom platform, and a closed space is formed between the flexible bag and the joint of the two floating tunnels and used for simulating water pressure; and the motion control assembly is used for controlling the motion of the six-degree-of-freedom platform so as to simulate the motion state of the floating tunnel in the hydrodynamic environment. By means of the innovative structural design and test method, the motion state of the floating tunnel in the complex marine environment and the watertight performance of the connector of the floating tunnel can be efficiently simulated, and reliable experimental data support is provided for design and optimization of the floating tunnel.

The present invention relates to a multi-core watertight bulkhead fiber optic connector, which is characterized in that it includes a bulkhead socket and two plugs. The bulkhead socket and the plugs are guided through the cooperation of a key and groove connection structure and are inserted through the cooperation of a positioning pin and a positioning pin hole connection structure. After the bulkhead socket and the plugs are inserted, they are connected and locked through a threaded structure. The bulkhead socket is provided with an optical contact member and an optical connection end rubber member, and the plug is provided with a coupling sleeve. When the bulkhead socket and the plug are inserted, the optical contact member is inserted into the coupling sleeve to achieve optical path alignment and fiber connection. The optical connection end rubber member is located at the insertion end face between the optical contact member and the coupling sleeve. The plugs and the bulkhead socket of the present invention both have transverse watertight performance. After the plug and the bulkhead socket are connected and locked, the overall watertightness of the bulkhead fiber optic connector can be achieved, providing watertight protection on both sides of the bulkhead.

The invention discloses a roof middle gutter expansion joint node system structure and an installation method thereof. The roof middle gutter expansion joint node system structure comprises two supporting devices and a connecting device, each middle gutter extends in the length direction of the corresponding installation interval, and each middle gutter is arranged at the corresponding installation interval; turnups are arranged on the two sides of each middle gutter, and each turnup is installed on the upper surface of the corresponding purline; and the expansion joint connecting piece is arranged at the expansion joint and is connected with the two middle gutters in a welding manner, so that the two middle gutters are communicated. The two spaced middle gutters and the middle expansion joint connecting piece are connected together in a welding mode, namely a full-sealing installation and connection mode is adopted, the comprehensive waterproof performance of the middle gutter expansion joint node is improved, and the whole roof middle gutter expansion joint node system structure has excellent air tightness and water tightness.

The application provides a miniemulsion polymer, which is prepared by a miniemulsion polymerization method through controlling pre-emulsion droplet particle size by a high-pressure homogenizer, using specific auxiliary stabilizers and specific primary emulsifiers. After the miniemulsion polymer is incorporated into a base material, an engineering material with high air tightness, high water tightness, high bonding strength and excellent durability can be obtained, which is used for the durability protection or sealing of engineering structures or the bonding between different materials, and has the advantages of simple process, low cost and outstanding comprehensive performance.

The invention discloses a three-dimensional adjustable inward side-hung bottom-hung hardware system which comprises an upper hinge, a lower hinge, an angle turning device, a handle, an inward inverted lock seat and an anti-lifting lock seat, and the upper hinge comprises a first frame fixing seat, a first sash fixing seat, a first transmission rod, a diagonal draw bar, a supporting rod and a first connecting rod assembly; the lower hinge comprises a second frame fixing seat, a second sash fixing seat, a second connecting rod assembly and a first adjusting block; the inner inverted lock seat is sequentially connected with a handle, an angle turning device and a first transmission rod through an aluminum pull rod; and the anti-lifting lock seat is matched with the inner inverted lock seat to lock the sash frame on the window frame. According to the three-dimensional adjustable inward side-hung and downward-hung hardware system, through a three-dimensional cooperative adjusting mechanism, window sash deviation caused by window frame installation errors, deformation or environment vibration can be adjusted, it is ensured that the window sash is closed, and therefore air tightness and water tightness are guaranteed.

The present application relates to a side water stop device for a sluice, belonging to the technical field of gate equipment. It includes a device housing, through which a water passage opening is formed. An installation cavity is provided inside the device housing, and a water blocking plate is embedded and slidably installed in the installation cavity. A driving mechanism is connected to the water blocking plate, and the driving mechanism is used to drive the water blocking plate to slide in the installation cavity. Both sides of the water blocking plate are slidably installed in two side grooves respectively, and the two side grooves are symmetrically formed on the device housing. Side wall air bags are installed in both of the two side grooves, and the two side wall air bags are closely attached to both sides of the water blocking plate respectively. The present application has the effect of preventing water from flowing from the side to the downstream when the sluice is closed, and improving the water tightness of the gate for water blocking.

The utility model discloses an autoclave frogman equipment water tightness detection clamp in the field of detection clamp, its structure includes the opening top connection flat plate, the opening bottom support flat plate, support flat plate base, opening support stand, transmission screw rod, opening clamping plate, cushion block, spring screw, bolt. The utility model discloses the position adjustment through support stand, transmission screw rod and clamping plate, realizes accurate clamping to different frogman equipment test sample, through the elastic clamping of spring screw and cushion block, avoids the frogman equipment test sample deformation in the fixed process to improve the reliability of autoclave frogman equipment water tightness detection.

The invention discloses a quick-in-place blow molding barrel body detection device, and relates to the technical field of plastic barrel detection devices.The quick-in-place blow molding barrel body detection device comprises a conveying frame, a plurality of conveying assemblies are arranged in the conveying frame, and each conveying assembly comprises a mounting frame and a conveying belt arranged in the mounting frame; the weighing mechanism comprises a weighing frame arranged in the conveying frame weighing station and a lifting driving piece connected to the bottom of the corresponding conveying assembly mounting frame; the barrel cover unscrewing station comprises a limiting frame arranged in the conveying frame, the top of the limiting frame is provided with a horizontally-moving frame body capable of horizontally moving, the horizontally-moving frame body is connected with a lifting linear module, and a claw clamp used for clamping a barrel cover is fixed to the bottom of the lifting linear module; and the water tightness testing station comprises a gantry frame arranged at the output end of the conveying frame, and a liftable inner frame is arranged in the gantry frame. The device and the method have the effects of quick in-place and high-efficiency testing.

The utility model relates to an external wall panel of a movable box house, which comprises an external wall panel, and a connecting frame is arranged on the inner side of the external wall panel. The external wall panel is connected with the color steel plate through the connecting frame; a connecting mechanism is arranged in the connecting frame; the connecting mechanism is connected with the house body keel; the upper and lower sides of the external wall panel and the color steel plate are respectively connected with the house body keel; and a thermal insulation layer is filled between the external wall panel and the color steel plate. A hot-dip galvanized steel plate with the thickness of 1.0 mm is pressed and formed to serve as an outer wall plate, rock wool with the designed thickness and volume weight is additionally arranged in the middle, a conventional metal color steel plate is arranged on the inner side, one side of a metal face sandwich plate can be fixed to prevent the metal face sandwich plate from shaking, the water tightness requirement can be met, and external water vapor, dew and the like cannot permeate into a room.

The utility model discloses an embedded inward-opening screen window structure, the embedded inward-opening screen window structure is installed on a window frame, one side of the embedded inward-opening screen window structure close to the outside is an outer side, one side of the embedded inward-opening screen window structure close to the inside is an inner side, and the embedded inward-opening screen window structure is characterized by comprising a screen sash and a screen sash auxiliary frame; the outer side of the screen sash auxiliary frame is provided with a seamless and integrally-formed outer side face, the inner side face of the screen sash auxiliary frame is provided with an embedded cavity used for containing the screen sash, and the screen sash is embedded and installed in the embedded cavity of the screen sash auxiliary frame so that the screen sash can be wrapped by the screen sash auxiliary frame. According to the screen window, the frame-wrapped sash mode is adopted, the structural positions of the screen sash and the screen sash auxiliary frame are changed, and various and messy lines of the screen window are reduced; the reasonable lap joint position reduces the number of gaps, and the overall water tightness of the aluminum alloy window is improved.

An anti-crack sand-in-water colorful coating structure comprises a base layer and is characterized in that one side of the base layer is coated with a primer layer, the side, away from the base layer, of the primer layer is coated with a middle layer, the side, away from the primer layer, of the middle layer is coated with a facing layer, the side, away from the middle layer, of the facing layer is coated with a weather-proof layer, and the middle layer is composed of an anti-crack layer and a watertight layer; the device is composed of the primer layer, the anti-crack layer, the watertight layer, the facing layer and the weather-proof layer, the anti-crack layer formed by combining the aerogel particles, the polypropylene fiber layer and the acrylic emulsion is adopted, cracks caused by external stress can be effectively prevented, the durability and stability of the coating are improved, and the service life of the coating is prolonged. The watertight layer composed of the polyurethane sealant layer and the inorganic waterproof coating layer is adopted, the watertight performance of the whole coating is improved, a building wall is protected against water erosion and damage, the facing layer composed of the environment-friendly colored finish paint layer, the quartz sand layer and the metal pigment layer is adopted, the coating has the good decoration effect, and the appearance of a building is more attractive.

The utility model discloses a heat-preservation energy-saving aluminum-clad wood window heat-preservation structure, and belongs to the technical field of building doors and windows. The problems that a traditional window is prone to causing heat loss, energy consumption increase and water seepage are solved. A window sash is arranged in the window frame, glass is arranged in the window sash, the heat preservation layer is arranged in a gap between the window frame and the window sash, the sealing assembly is arranged on the contact edge of the window frame and the window sash, and the heat preservation layer comprises a macromolecule heat preservation foam layer, an air heat insulation layer and a reflecting layer which are sequentially arranged from inside to outside. The energy-saving and environment-friendly energy-saving window can reduce loss of indoor heat, can effectively prevent heat transfer, and has an excellent heat preservation effect. External air and moisture are effectively prevented from entering a room, and the air tightness and water tightness of doors and windows can be effectively improved. The window has excellent durability and corrosion resistance, and the service life of the window is prolonged. The window is simple in structure, attractive, practical and easy to install, the natural aesthetic feeling of wood is reserved, meanwhile, the functionality of the window is improved, and the double requirements of modern buildings for attractiveness and practicability are met.

The utility model discloses a concrete guide pipe which comprises single pipes which are connected end to end, each single pipe comprises a guide pipe body, a groove is formed in one end of each guide pipe body in the circumferential direction, and a plurality of rope penetrating holes on the side of the groove are formed in the outer wall of the guide pipe body at the position corresponding to the groove in the circumferential direction. A convex tongue-and-groove matched with the groove in shape is formed in the other end of the guide pipe body, and a plurality of rope penetrating holes on the side of the convex tongue-and-groove are formed in the circumferential direction of the convex tongue-and-groove; the convex tongue-and-groove of one of the two single pipes which are connected end to end is inserted into the groove of the other single pipe, and the positions of the rope penetrating holes in the groove side and the rope penetrating holes in the convex tongue-and-groove side coincide in a one-to-one correspondence mode to form lock holes; the steel wire rope sequentially penetrates through the lock holes to fix the two connected single pipes, and the two ends of the steel wire rope are fixed through lock catches. According to the structure, on the premise that the water tightness of the guide pipe meets the requirement, the mounting and dismounting efficiency between pipe joints is improved.

The present invention provides a kettle capable of achieving both waterstop and ease of attachment and detachment of a lid. A kettle is provided with: a container main body which has a bottomed cylindrical shape with an upward opening and is capable of accommodating a beverage; and a flow path forming member that can be attached to and detached from the opening of the container main body and has a flow path through which the beverage in the container main body passes and is discharged to the outside. The flow path is always in an open state through which the beverage can pass. The container main body has protrusions (24, 25) which are arranged in the vertical direction and have an annular convex shape on the inner peripheral surface of the opening. The flow path forming member is provided with a flow path forming main body section attached to the interior of the opening section. The flow path forming main body part is provided with: a sealing part which has a circular ring shape along the inner circumferential surface of the opening part and is in contact with the convex part (24) so that the beverage does not pass through a part other than the flow path; and a retaining part which is positioned on the upper side of the sealing part, has a circular ring shape along the inner circumferential surface of the opening part, and is hooked to the convex part (25) in order to keep the flow path forming member in a retaining state.

The embodiment of the invention provides a propeller hub sealing structure and device and a ship, the structure comprises an inner gland, a shaft sleeve is sleeved with the inner gland, the inner gland is in clearance fit with the shaft sleeve and a propeller, and the end face, close to one side of the propeller, of the inner gland is watertight through a radial sealing ring; and the outer gland is sleeved on the shaft sleeve on the outer side of the inner gland and is in clearance fit with the shaft sleeve and the inner gland, and the inner ring side of the outer gland is close to the end position of the inner gland, so that the contact surfaces of the outer gland and the shaft sleeve as well as the outer gland and the inner gland are sealed through an axial sealing ring. According to the embodiment of the invention, a traditional sealing gland is optimized into a combined form of the inner gland and the outer gland, and the axial sealing ring and the radial sealing ring are mounted in two independent steps, so that the process is simplified, and the synchronous mounting difficulty is reduced; furthermore, the inspection hole is formed in the inner gland, so that the sealing effectiveness can be inspected under the condition that the gland is not disassembled, the daily maintenance is simple, and the safety effect is remarkable.

The utility model relates to the technical field of sliding doors, in particular to a sealing structure of a sliding door and the sliding door comprising the sealing structure. The sealing structure comprises a door frame and a door leaf installed in the door frame, a protruding part protruding towards the door leaf is arranged on the inner side of the door frame, a first sealing rubber strip is arranged at the end, close to the door frame, of the door leaf, and the first sealing rubber strip and the protruding part are oppositely arranged and extend in the direction perpendicular to the indoor and outdoor direction. When the door leaf moves towards the door frame to be tightly matched with the door frame, the first sealing rubber strip abuts against the protruding part in the moving direction of the door leaf towards the door frame and is compressed. The door leaf and the door frame are in firm contact and tight sealing through the compressed first sealing rubber strip, and even if the door leaf is subjected to high air pressure and deviates towards the indoor side or the outdoor side, the first sealing rubber strip and the protruding part can keep tight abutting so that the sealing state can be stable. The air leakage and water leakage risks under high wind pressure can be effectively reduced, and the air tightness and water tightness of the sliding door are remarkably improved.

The invention discloses a non-welding composite bridge deck structure with ribbed plates, and relates to the technical field of bridge composite structures. The structure is composed of asymmetrical U-shaped steel and hemming section steel with a stiffened bottom. Different from traditional prefabrication and assembly, a construction method of firstly placing in place and then folding is adopted, and after profile steel is placed in sequence, continuous cold bending and edge curling operation is conducted on overlapped edges through special mechanical equipment. And finally, a three-layer steel plate cascading occlusion structure with the outer wrapping corners wrapping the middle folded edges and the middle folded edges wrapping the inner turned edges is formed at the joints. According to the in-situ forming process, assembly gaps caused by component manufacturing and mounting errors are eliminated, strong residual clamping force is generated in the joint, zero-sliding connection between similar steel components is achieved, and a composite bridge deck structure is finally formed in cooperation with transverse penetrating reinforcing steel bars and a concrete layer. The structure thoroughly abandons welding, has extremely high overall rigidity, excellent anti-fatigue performance and water tightness, and is suitable for high-standard assembly type bridge construction.

A composite waterproof membrane for waterproofing concrete slabs and foundation walls is disclosed. The waterproof membrane includes: a rubberized asphalt layer; a polymeric adhesive layer having one face bonded to one surface of the rubberized asphalt layer and having an opposite face with surface voids; and a vapor barrier layer bonded to an opposite surface of the rubberized asphalt layer. The surface voids of the adhesive layer allow concrete poured on the adhesive layer to be filled in the voids and anchor the concrete to the adhesive layer, thereby ensuring water tightness between the composite waterproof membrane and the concrete. Methods and systems for waterproofing blind-side building foundations using the waterproofing membranes are also disclosed.

The utility model relates to the technical field of vertical hinged doors, and discloses an aluminum alloy heat insulation antique vertical hinged door which comprises a vertical hinged door pocket, an aluminum alloy door frame is movably connected to the outer surface of the front end of the vertical hinged door pocket, and glass is fixedly connected to the outer surface of the front end of the aluminum alloy door frame. Chinese style window grilles and arc-shaped sand glass are fixedly connected to the outer surface of the right middle portion of the front end of the glass, and the Chinese style window grilles are located on the outer surface of the front end of the arc-shaped sand glass. The air tightness between the whole door frame and the door is improved, the air tightness, the water tightness and the wind pressure resistance of the whole window are improved through close fit of multi-point lock accessories, the heat-insulation archaized vertical hinged door shows the unique characteristics of a Chinese style building, and the whole Chinese style building has vivid romantic charm; and the method plays an important role in the culture significance and value of the whole Chinese style building.