29 results about "Water tightness" patented technology

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 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.

To prevent situations where watertightness is compromised, while also improving thermal insulation. [Solution] The lower frame 12 has an outdoor metal molded part 12A and an indoor metal molded part 12B made of metal, and a bridge material 12C made of thermal insulation material, with the outdoor metal molded part 12A and the indoor metal molded part 12B connected via the bridge material 12C, and a connecting sheet 20 made of thermal insulation material is bonded to the portion extending from the adhesive flat surface 12c provided on the outdoor metal molded part 12A, the inner circumferential surface 12d of the bridge material 12C, and the adhesive flat surface 12c provided on the indoor metal molded part 12B.

The application discloses a folding gangway oil cylinder maintenance method, a maintenance channel structure, a roll-on / roll-off ship and a construction method, and relates to the technical field of folding gangway oil cylinder maintenance. The folding gangway oil cylinder maintenance method comprises the following steps: opening an openable cover arranged at a manhole opening on a ship body structure from the inner side of a vehicle cabin; a maintenance personnel enters an operation support structure arranged on the outer side of the ship body and corresponding to the position of the manhole opening through the manhole opening; performing maintenance operation on the folding gangway oil cylinder on the operation support structure; and returning to the vehicle cabin through the manhole opening and closing the openable cover after the maintenance is completed. The safety of the folding gangway oil cylinder maintenance process can be improved, the structure can be simplified, the cost can be reduced and the maintenance convenience can be improved under the premise of guaranteeing the water-tight performance of the ship.

The utility model relates to detection equipment field discloses a kind of high sealing filter water cup water tightness detection device, including water pool, the inside fixed connection of water pool has clamping mechanism, the top fixed connection of water pool has support seat, the bottom fixed connection of support seat has dismounting distance adjusting mechanism, the clamping mechanism includes pneumatic cylinder one, the bottom fixed connection of pneumatic cylinder one in the inside of water pool, the top fixed connection of pneumatic cylinder one has fixed assembly, the drive end fixed connection of pneumatic cylinder one has moving plate, the outside sliding connection of moving plate has transmission rod, the top sliding connection of transmission rod has sliding rod, the outside fixed connection of sliding rod has sliding block. In the utility model, realize clamping arm stable opening and closing, fixed assembly and placement table double guarantee filter water cup positioning firm, sliding rail guide ensure action stable, effectively promote stability and reliability in detection process.

This invention aims to provide a water tightness testing device for electronic products, featuring a compact structure, high detection accuracy, reliable data, high detection sensitivity, strong applicability, wide application range, high system integration, and easy automation, achieving a leap from "qualitative judgment" to "quantitative analysis." The invention includes a main control module connected to a sampling module via a temperature control module. The temperature control module includes a contoured carrier plate, with a semiconductor cooler and a first temperature sensor located at its bottom. The sampling module includes a sampling chamber and a vacuum generator. The sampling chamber is equipped with a second temperature sensor, a humidity sensor, and a pressure sensor. The sampling chamber is connected and cooperates with the vacuum generator and the detection port of the contoured carrier plate. This invention applies to the technical field of electronic product testing.

The utility model discloses a kind of multilayer sealed ultrasonic transducer, belong to ultrasonic transducer field, internal cavity of shell body is equipped with internal dismounting frame, the side wall of internal dismounting frame is equipped with limit frame in upper and lower part, limit groove is opened between limit frame and internal dismounting frame, limit groove is connected with limit type movable ring in each, a plurality of reset spring is installed in the hole of internal dismounting frame, reset spring is connected with limit type movable ring, realize the up and down activity of limit type movable ring.The multilayer sealing structure designed is set by sealing ring in the both ends of shell, combined with buffer filler and limit movable ring, improve the air tightness and water tightness of ultrasonic transducer, ensure that equipment is stable and reliable.Limit jacking mechanism uses reset spring and limit ring, dynamically adjusts sealing ring, automatically compensates the clearance change caused by temperature and vibration, reduces leakage risk.Limit frame and groove design guarantee the stability and accuracy of movable ring movement.

The application discloses a full-revolution propeller base support structure for a ship and an assembling method thereof, and belongs to the technical field of shipbuilding. The base support structure comprises a support frame, a support elbow plate, a watertight sleeve, a false rudder and a simulated mounting ring, and the simulated mounting ring can be sleeved and fixed on the cylinder. The base support structure has the advantages of small quantity of parts, small design workload, ensured longitudinal continuity and transverse continuity of the structure, ensured strength and support rigidity of the whole structure, protected propeller connecting portions and played a flow guiding role through the false rudder structure, ensured the watertightness of the whole structure through the watertight sleeve structure, simulated positioning of the full-revolution propeller mounting position through the design of the simulated mounting ring, ensured the assembling method to be simple and convenient and ensured the mounting precision of the propeller, and can be suitable for various types of full-revolution propellers through the adjustment of the curvature of the first cutout of the support elbow plate, and has good applicability.

A roll comprising an air and water barrier article is provided. The barrier article has opposed first and second major surfaces. A pressure sensitive adhesive is disposed on at least the first major surface and a release agent is disposed on the opposing second major surface. The release agent covers less than 100% of the second major surface and the pressure sensitive adhesive contacts predominately, if not exclusively, the release agent when wound in the roll.

The utility model provides a kind of multi-modal container, including chassis, four walls, wing side wall, angle column, upper vertical beam, hinge and drain groove, two end walls are located at the both ends of chassis respectively, angle column is located at the four corners of chassis and is located at the two sides of end wall respectively, the outer surface of angle column has drain groove, angle column drain groove extends along the height direction of multi-modal container;Upper vertical beam is connected to two end walls;Vertical drain groove extends along the length direction of multi-modal container, and is located at the outside of upper vertical beam, along the height direction of multi-modal container, vertical drain groove is located above angle column drain groove;Lower limit hinge device is at least partially located in vertical drain groove.In accordance with the utility model's wing container also enhances the water tightness of wing container, so that it is more adaptable to complex and variable environment, long-distance multi-modal transportation.

This invention provides a joint structure for building panels that can maintain high watertightness even in high-pressure environments of around 5000 Pa, without increasing costs. [Solution] This is a joint structure K1 for building panels, which is provided with waterproof vertical and horizontal gaskets 10 and 11 sandwiched between the vertical joints 2 and horizontal joints 3 on the back side of building panels that are laid vertically and horizontally. The vertical and horizontal gaskets 10 and 11 are made of different materials and have a density of 120-160 kg / m³. 3 The material has properties such that the compressive stress at 25-30% compression is 20-36 kPa. When compressed to 25-30%, it is sandwiched between the vertical joint 2 and the horizontal joint 3, respectively, and the difference in compressive stress between the vertical gasket and the horizontal gasket in the sandwiched state is kept to 10 kPa or less to improve watertightness.

This application relates to an energy storage container and an energy storage system. The energy storage container includes: a container body with an opening on one side; a door panel rotatably connected to the container body, used to open or close the opening, forming a gap space between the door panel and the container body; and a sealing assembly including an inner sealing strip and an outer sealing strip, the inner sealing strip being connected to the container body and surrounding the opening, and the outer sealing strip being connected to the door panel; the door panel forms an interference fit with the inner sealing strip when the opening is closed, and the outer sealing strip forms an interference fit with the container body when the door panel is closed, thereby sealing the gap space. In this energy storage container, the inner and outer sealing strips respectively seal the inner and outer sides of the door panel when the opening is closed, effectively improving the sealing performance between the door panel and the container body, reducing the probability of ambient moisture and air entering the container body, improving the overall water tightness and air tightness of the energy storage container, and thus improving the operational reliability and stability of the energy storage container and the corresponding energy storage system.

The application provides a natural bamboo curtain wall and a construction method thereof. The natural bamboo curtain wall comprises a keel, a curtain wall plate and a window top plate. The curtain wall plate comprises a natural bamboo veneer, a main waterproof plate and an auxiliary waterproof film. The natural bamboo veneer is arranged on the keel. The main waterproof plate is arranged on the inner side of the natural bamboo veneer and the keel. The auxiliary waterproof film is arranged on the inner side of the main waterproof plate and the thermal insulation layer of the wall. The window top plate is arranged above the window and on the bottom of the keel above the window. The window top plate has a water outlet hole. The natural bamboo curtain wall can solve the problem of poor waterproof performance of the natural bamboo curtain wall, thereby meeting the air tightness and water tightness of the curtain wall.

The present application relates to the technical field of compression test, and discloses a vibration water tightness test equipment and method for building waste recycled fine aggregate, which comprises a base and a hydraulic control system. Through the linkage structure of the inserted sleeve, the pressure arm and the limiting seat, the pressure rod is gradually moved to the rotation center of the rocker arm during the constant angular velocity deflection of the rocker arm, the length of the pressure arm is continuously shortened, the continuous decrease of the displacement and the moving speed is realized under the same rotation angle, the gradual pressure effect of the rapid settlement in the early stage and the slow pressure stabilization in the later stage is formed, and the pressure pressure can be simultaneously and adaptively increased according to the change rule of the continuously increased resistance and stiffness of the test piece during the compression process. The nonlinear deformation rule of the recycled fine aggregate test piece, that is, the large initial pore, the fast settlement, the small resistance in the early stage, and the particle embedding and compacting, the sudden increase of the hardness and the resistance in the later stage, is adapted, and the detection authenticity and accuracy of the core parameters such as the ultimate compressive strength, the steady creep and the settlement deformation are greatly improved.

The utility model relates to a kind of fireproof watertight hatch cover, it includes cover plate mechanism, outer frame mechanism, hinge mechanism and head binding mechanism, outer frame mechanism is located the outside of cover plate mechanism, outer frame mechanism is hinged with cover plate mechanism by hinge mechanism, several head binding mechanisms are installed on cover plate mechanism, cover plate mechanism and outer frame mechanism can be combined or the cover plate mechanism and outer frame mechanism that have been combined together are separated by head binding mechanism.The hatch cover of the utility model has good fire resistance and watertight performance, the utility model also has the characteristics of long service life.

The utility model discloses a kind of suitable for assembled energy-saving building outer envelope unit wallboard joint heat insulation structure, belong to near zero energy consumption building field.The joint heat insulation structure is used to connect the vertical and horizontal joint of assembled unit wallboard.Each wallboard is provided with groove cavity around, and inner fixed section bar, and sealing structure is arranged in the gap between section bar and cavity.Three grooves are arranged on section bar along length direction.A glue strip is arranged in the first groove of upper and lower two section bars in horizontal joint structure, and B glue strip is arranged in the second groove;B glue strip includes B glue strip main part and extension, wherein B glue strip main part is inserted into the groove of section bar;Extension extends from B glue strip main part to the end away from B glue strip main part;A glue strip is arranged in the first groove and third groove of left and right two section bars in vertical joint structure;Two section bars are fixedly connected by convex slot and concave slot.The structure realizes the fine, stable connection of wallboard joint, improves air tightness, water tightness, and is simple to operate.

The utility model discloses a cofferdam structure for bridge pier construction includes two head sections, a plurality of intermediate sections, water stop, erosion prevention board, the head section is U type structure, the intermediate section is a character type structure, the head section or the head section same a plurality of intermediate sections are detachably connected through bolt, and the cofferdam structure is enclosed, is provided with water stop in the junction, is provided with erosion prevention board in the lower part of head section, the utility model discloses the prefabricated cofferdam structure can conveniently realize construction site hoisting installation, and through detachable structure can conveniently realize the dismantling of division, has the advantages such as short construction period, low cost, on the specific structure, through the setting of water stop can effectively protect the connecting bolt, through the setting of pointed convex part, water stop surface material etc. Structure can realize the stability and water tightness of cofferdam installation, through the setting of erosion prevention board can reduce the erosion of water flow to cofferdam foundation, reduce the appearance probability of seepage, inclination etc. Accident.

This utility model provides an airbag device for a water tightness test, relating to the field of pipeline engineering testing technology. It includes a set of supports; a drain pipe fixedly installed on the top of the supports; and a fixing assembly symmetrically arranged inside the drain pipe. The fixing assembly includes an airbag body, a fixing ring, and a hydraulic cylinder. A fixing block is fixedly installed on the outer surface of the airbag body, and a slot is formed on the outer surface of the fixing block. A connecting block is slidably connected to the outer surface of the fixing block. This utility model, through the action of the fixing assembly, can form a stable limit and rigid fixation for the airbag body, effectively avoiding its axial displacement under water flow impact and uneven water pressure distribution. Simultaneously, the linkage of the mechanical structure enables convenient pulling out of the airbag, facilitating quick removal after the test, thereby improving the operational efficiency of the water tightness test and ensuring the sealing stability throughout the test.

This invention relates to the field of cable manufacturing technology, specifically to a flame-retardant power cable and its preparation method. This invention overcomes the problems of poor flame retardancy, short fire resistance, lack of watertightness, and susceptibility to low-temperature cracking in existing cables under marine and complex environments, resulting in insufficient synergistic reliability. It utilizes metallocene polyethylene double-grafted and modified with maleic anhydride and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide as the base material, compounded with organically modified nano-montmorillonite and low-melting-point glass powder to construct a synergistic flame-retardant system; high-pressure injection of organosilicon flame-retardant conductor watertight expansion paste into the conductor gaps; and modified fiberglass rope as the filler layer. The cable is prepared through segmented feeding twin-screw compounding, precision gradient temperature-controlled three-layer co-extrusion, and multi-pass electron beam irradiation cross-linking. The final cable possesses excellent low-smoke halogen-free flame retardancy, line integrity under extreme fire conditions, long-term longitudinal watertightness, and outstanding low-temperature dynamic reliability, meeting the stringent requirements of marine service.

This application discloses a rapid water-blocking ball for a water tightness test, comprising an air supply cylinder, an expansion bladder fixedly connected to the bottom end of the air supply cylinder, a limiting sliding hole formed on the upper surface of the air supply cylinder, a limiting sliding rod slidably installed on the inner wall of the limiting sliding hole, a control pressure plate rotatably mounted on the top end of the limiting sliding rod via a bearing, and a push plate fixedly installed on the bottom end of the limiting sliding rod. This device, through the cooperation of the limiting sliding rod and the push plate, allows the push plate to push the piston plate downwards, using the piston plate to allow gas from inside the air supply cylinder to enter the expansion bladder, thereby causing the expansion bladder to expand rapidly and block the pipeline. Furthermore, through the cooperation of the control pressure plate, the vertical plate, and the locking block, it can enter the interior of two arc-shaped plates, allowing the locking block to contact the arc-shaped plates and limit the control pressure plate and the limiting sliding rod, preventing gas leakage and ensuring that the water-blocking ball effectively blocks the pipeline.

This invention discloses an optical fiber connector, aiming to provide a convenient assembly method for a rubber connector with a shielded external structure that enables grounding of the cable shielding layer through external conductivity without affecting the overall watertight performance. The key technical point is that key shielding components such as a shielded lead-out ring, a metal clamp ring, and lead-out holes are arranged inside the outer sleeve. The assembled structure is then fitted inside a metal threaded sleeve, forming a conductive path between the external water environment, the metal threaded sleeve, and the shielded lead-out ring. During installation, a sealing structure is installed on the outer sleeve of the shielding component, ensuring the watertight performance of the overall structure. The overall structure can form a reliable electrical connection with the external water medium, thereby improving the electromagnetic shielding efficiency of the transmission link, effectively suppressing signal interference, and providing overall structural stability and strong pressure resistance. This invention improves the electromagnetic shielding effect of the connector without affecting other performance characteristics and is applicable to the field of deep-sea connector technology.

The utility model discloses a drainage structure of sliding door and sliding door belong to door and window technical field. The lower rail section is equipped with first track and second track, and the first track is equipped with outdoor drainage cavity, outdoor drainage hole and water outlet on the outside of second track, and the drainage sealing element includes the sealing frame body and the support foot, and the support foot is used for supporting the sealing frame body and is suspended between the first track and the second track, and the lower portion of sealing frame body and the lower rail section are enclosed and form the closed intermediate drainage cavity, and the sealing frame body is equipped with the intermediate water leakage hole that communicates with the intermediate drainage cavity, and the liquid in the intermediate drainage cavity can be in turn through outdoor drainage hole, outdoor drainage cavity and water outlet and export to the outside of lower rail section. The utility model discloses through setting up the sealing frame body between two tracks, forms the closed intermediate drainage cavity, and effectively improved the drainage efficiency and water tightness of sliding door.

This invention relates to the field of plastic pipe fitting testing technology, and discloses a circulating testing device for the airtightness and watertightness of socket-connected plastic pipe fittings. The device includes a water tank, an inflation mechanism including an air compressor for introducing a testing medium into the inner cavity of the plastic pipe to perform a sealing test on the socket connection, and a bending mechanism including a worktable and two reciprocating threaded supports on the worktable. By placing the socket connection of the plastic pipe in the water tank and introducing the testing medium into the inner cavity of the plastic pipe through the inflation mechanism, while simultaneously using the bending mechanism to drive the plastic pipe to form a reciprocating arc in the same direction, the socket connection generates circumferential contact pressure and periodic changes in the insertion gap under the combined action of external water pressure, internal air pressure, and cyclic bending. This allows for the testing of airtightness and watertightness under dynamic stress conditions, which is particularly beneficial for detecting leaks that are not easily exposed under static conditions.

To provide a flow path switching device that ensures operability and watertightness while minimizing disruption to the water flow. [Solution] The flow path switching device 6 comprises a first flow path 11 and a second flow path 12, a door body 20 capable of selectively closing the first flow path 11 and the second flow path 12, and a moving mechanism 30 for moving the door body 20 to close the first flow path 11 and the second flow path 12. Each of the first flow path 11 and the second flow path 12 consists of an open channel and is formed in a trapezoidal cross-section in which the distance between a pair of inner surfaces widens from bottom to top. The door body 20 has a trapezoidal shape that allows the first flow path 11 and the second flow path 12 to be opened and closed by a lifting operation. The movable mechanism 30 includes a lateral movement mechanism 32 capable of moving the door body 20 between a first position P1 capable of closing the first flow path 11 and a second position P2 capable of closing the second flow path 12 in the space above the flow path, and a lifting mechanism 40 for lifting the door body 20 up and down.

The utility model discloses a high-precision aluminum alloy door and window sealing compression strip section bar, include: aluminum alloy frame main part, front cover plate and back cover plate, the aluminum alloy frame main part middle is provided with the baffle, and the front cover plate is set up with back cover plate splicing on the aluminum alloy frame main part, and the soundproof glass is set up between the baffle and front cover plate or baffle and back cover plate, and is sealed through sealing compression strip structure. The utility model discloses the setting of front compression strip main part and rear compression strip main part, combines the compression effect of convex strip, and the contact sealing property of soundproof glass is greatly improved, and the air and water tightness of door and window are ensured.

This invention relates to the field of pressure testing technology and discloses a pressure testing device for testing the water tightness of doors and windows based on a mechanical sensor. The device includes a pressure testing chamber, a plastic film installed on the interior side of the door / window frame, and a sealing plate installed on the interior side of the door / window opening. A pressure sensor is installed inside the pressure testing chamber, with a testing tube inserted into the testing end of the sensor. An installation tube is fixedly installed at the end of the testing tube furthest from the pressure sensor. This invention precisely adjusts the air pressure inside the static pressure chamber through the pressure testing chamber to simulate different wind and rain conditions. The pressure sensor collects air pressure data in real time through a clear testing channel, and coordinates with an outdoor water spray device to achieve comprehensive testing. All components operate in a coordinated manner, the installation tube is firmly fixed without deviation, and the sealing components switch precisely, ensuring the stability of air pressure regulation and data acquisition. This effectively guarantees the authenticity and reliability of the water tightness test data for doors and windows, providing strong support for door and window quality assessment.

The utility model provides a kind of door and window mounting structure, it is related to building door and window technical field, to solve the problem of water leakage, air leakage in prior art in door and window mounting structure, the door and window mounting structure includes including water apron, window frame and first sealing strip, the window frame is set to the outside of wall body, one side of the water apron is attached with outside wall body and another side extends to the outside of window frame and is covered in the upside of window frame, the first sealing strip is sealed between the water apron and the window frame.The door and window mounting structure of the utility model by water apron extends to the outside of window frame, so that water apron can effectively shield effect to window frame, so that the installation structure has good rainproof performance, furthermore, by first sealing strip sealing between water apron and window frame, so that the installation structure has good windproof effect, to realize the reliable thermal insulation, watertight performance and air-tight performance of door and window node.