142 results about "Waterproof adhesive tape" patented technology

The utility model discloses a low-water-permeability packaging photovoltaic module structure, and the structure comprises first glass which is opposite to second glass in the thickness direction; the battery accommodating cavity is clamped between the first glass and the second glass; the sealing edge is an edge where the first glass and the second glass are attached and is arranged on the peripheral side of the battery accommodating cavity in a surrounding manner; and the packaging structure covers the end gap surface, far away from the battery accommodating cavity, of the sealing edge, and comprises a waterproof adhesive tape and high-temperature-resistant waterproof glue which are sequentially close to the end gap surface. The low-water-permeability packaged photovoltaic module is reasonable in structure, and the high-temperature-resistant waterproof glue is coated on the end gap surface of the sealing edge, so that the low-water-permeability packaged photovoltaic module is good in sealing effect, bonding strength and aging resistance, and simple and convenient in operation process; and then the high-temperature-resistant waterproof glue is extruded by the waterproof adhesive tape to slightly deform and is tightly attached to the end gap face, the binding force is enhanced, and the dual-sealing waterproof effect is achieved.

The invention discloses a deformation joint structure based on active guide drainage and long-acting sealing and a construction method thereof, and belongs to the technical field of building construction. The structure comprises a bottom active guiding and discharging assembly and a top sealing assembly. The bottom active guide and drainage assembly comprises flexible waterproof adhesive tapes which are fixedly adhered to the side walls of the building structures on the two sides of the deformation joint through adhesive layers, and the flexible waterproof adhesive tapes are bent downwards to form drainage channels; the top sealing assembly comprises waterproof reverse ridges arranged on the top faces of the building structures on the two sides and a top cover plate stretching across the deformation joint. According to the invention, a first defense line is formed through the top cover plate and the side waterproof reverse ridges by taking'changing blockage into dredging 'as a core, so that an external water source is effectively blocked; and a second defense line is formed through the flexible waterproof adhesive tape at the bottom, permeated water flow is actively collected and discharged, the water leakage problem caused by aging of traditional sealant is avoided, and long-acting sealing and water prevention of the deformation joint are achieved.

The utility model provides a kind of quick-release cabinet door structure, the cabinet door includes by a door panel, two louver grating board, two protective nets, a waterproof adhesive tape, a door frame limiting plate and several rotating door locks;Second drain groove is formed by the bending of the periphery edge of door panel, the middle part of door panel is opened with two door holes symmetrically, door hole side plate is formed by the bending of the back of door hole, the bottom of door hole is formed by the bending of drainage slope;Two louver grating boards are respectively arranged in two door holes;Two protective nets are arranged on the back of two louver grating boards;Waterproof adhesive tape is fixed on the periphery edge of the back of door panel, the inclined surface end of first drain groove is just set on waterproof adhesive tape;Door frame limiting plate is fixedly arranged on the bottom of the back of door panel by fixed part, and clamping part is clamped on the back of first drain groove;Rotating door lock is arranged on door panel.The utility model is a kind of quick-release cabinet door structure with simple structure, easy to make, low cost, which can be easily opened and protected, with good heat dissipation effect, and can adapt to humid environment.

The invention relates to the field of photovoltaic modules, and particularly provides a photovoltaic module and a waterproof adhesive tape for the photovoltaic module, the waterproof adhesive tape comprises an adhesive tape main body, the adhesive tape main body comprises: a substrate layer; the supporting layer is arranged on one side of the base material layer; the blocking layer is arranged on the side, away from the base material layer, of the supporting layer; the water-blocking bonding layer is arranged on one side, far away from the supporting layer, of the blocking layer; wherein the water-blocking bonding layer can be fixedly connected with a laminated piece of the photovoltaic module. By means of the structure, the strength of the waterproof adhesive tape can be guaranteed through the supporting layer, the waterproof effect can be guaranteed through the blocking layer, and the bonding reliability of the waterproof adhesive tape can be guaranteed through the water blocking bonding layer.

The present invention relates to a paper watchband and its manufacturing process. The paper watchband includes a band body, a fixed band loop, and a movable band loop. The band body includes a fabric, a core material, and a base material. The fabric includes paper material and a waterproof layer. The waterproof layer is a waterproof adhesive coated on the surface of the paper material. The band body is divided into a first band body and a second band body. The fixed band loop is fixed to the first band body, and the movable band loop is movably sleeved on the first band body. A portion of the fixed band loop is glued and fixed between the core material and the base material of the first band body, and the remaining portion of the fixed band loop is exposed outside the first band body. The paper material is recycled newspaper, and the printed fonts and patterns on the newspaper constitute a decorative layer. The waterproof layer is a transparent waterproof layer through which the paper material decorative layer can be observed. The fabric of the paper watchband of the present invention is made of paper, and the printed fonts and patterns on the recycled newspaper constitute the decorative layer of the watchband, making the watchband production more environmentally friendly and the appearance of the watchband more personalized. The core material and base material are made of leather, which provides the watchband with sufficient toughness and is not easy to break.

The invention provides an insulating water-blocking adhesive tape, a double-glass photovoltaic module and a preparation method of the double-glass photovoltaic module, and relates to the technical field of photovoltaic power generation. The insulating water-blocking adhesive tape comprises a base material layer, an inner pressure-sensitive adhesive layer and an outer insulating protective layer, and the thickness of the inner pressure-sensitive adhesive layer is 80-120 microns. The insulating water-blocking adhesive tape provided by the invention has good insulating water-blocking performance, and the insulating water-blocking adhesive tape with a three-layer structure is adhered to the periphery of a double-glass assembly laminated piece, so that firm adhesion of the adhesive tape and the laminated piece can be realized, the insulating performance and the water-blocking capability of the assembly are improved, the distance from an electrified body to the edge of glass is shortened on the premise of ensuring the safety standard, and the service life of the assembly is prolonged. Therefore, the photovoltaic double-glass assembly can adapt to a battery piece with a larger size, and the assembly power and the assembly efficiency are improved.

The utility model relates to the technical field of retaining walls, and discloses an embedded drainage inverted filter structure of a retaining wall. The multi-layer drainage structure comprises a plurality of layers of drainage structures which are arranged in the retaining wall according to different heights, each layer of drainage structure comprises a plurality of embedded frames which are embedded in the middle of the retaining wall at intervals, and a coarse aggregate layer, a fine aggregate layer and a water absorption material layer are sequentially arranged in each embedded frame in the direction from the exterior of the retaining wall to the interior of the retaining wall. The water absorbing material layer is connected with the two-way slope waterproof cloth, and the adjacent two-way slope waterproof cloth is connected through the waterproof adhesive tape. The main body structure only comprises the embedded filter bag and the waterproof cloth which are embedded in the frame, the structure is very simple, a traditional retaining wall exposed inverted filter bag water collection and drainage mode is changed into an embedded mode, integrated construction of the retaining wall and a drainage device can be achieved, accurate control over the construction progress and quality is guaranteed, and meanwhile the construction efficiency can be improved.

The utility model discloses a bathroom metal triangular valve which structurally comprises a pipe body, a control knob arranged at the top end of the pipe body, a connecting pipe arranged on the surface of the pipe body and vertically installed, a movable installation plate connected with the lower portion of the pipe body in a penetrating mode and a threaded installation pipe arranged on the surface of the lower middle portion of the pipe body. The sealing device has the advantages that through the arranged movable mounting plate, when the threaded mounting pipe is mounted, the sealing ring column can be pulled to completely surround the surface of the threaded mounting pipe, and the sealing ring column and the threaded mounting pipe are effectively arranged through the telescopic elastic ring; the threaded mounting pipe and a mounting hole reserved in a wall body are connected in a penetrating and rotating mode, the air bag layer arranged on the sealing ring column and the protruding ring are arranged in a matched mode, the air bag can fill the gap between the threaded mounting pipe and the mounting hole under the extrusion effect, and therefore effective and rapid mounting is achieved; and a waterproof adhesive tape does not need to be wound on the outer surface of the threaded mounting pipe according to traditional operation.

The invention provides a damp-heat aging resistant three-layer waterproof adhesive tape as well as a preparation method and application thereof, and belongs to the technical field of waterproof adhesive tapes. The waterproof screen cloth comprises a screen cloth layer and a waterproof layer which are bonded through a bonding adhesive, the waterproof layer is coated with the TPU hot melt adhesive layer; the laminating glue comprises the following components in parts by weight: 95-105 parts of PU glue, 4-6 parts of precipitated silica, 8-12 parts of an isocyanate curing agent and 60-70 parts of butanone; the TPU hot melt adhesive layer is prepared from the following components in parts by weight: 45 to 60 parts of polyester polyol, 10 to 20 parts of polyether polyol, 20 to 25 parts of diphenylmethane diisocyanate (MDI), 5 to 10 parts of chain extender and the like. The adhesive tape solves the problems that the existing adhesive tape is poor in damp-heat aging resistance and the adhesive strength is easy to decrease by improving the formula of the laminating adhesive of the mesh cloth layer and the waterproof layer and the formula of the TPU hot melt adhesive layer, and has excellent damp-heat aging resistance, stable waterproofness and lasting adhesive strength.

The utility model discloses a waterproof shell of a display, and belongs to the technical field of displays. Sliding grooves are formed in the two sides of the inner wall of the outer frame, adjusting sliding plates are arranged on the sliding grooves in a sliding fit mode, one sides of the adjusting sliding plates are connected with a shell, mounting through holes are formed in the bottom end of the shell, heat dissipation through holes are formed in the four corners of one side of the shell, waterproof rubber strips are arranged on the inner wall of the shell in a surrounding mode, and fixing screws are arranged at the top end of the outer frame in an inserted mode. The bottom end of the fixing screw is connected with a spring. According to the utility model, the adjusting sliding plate, the waterproof adhesive tape, the fixing screw and the spring are matched, the inverted U-shaped outer edge plate is used for protecting the enclosure and the waterproof adhesive tape from three directions to realize effective waterproof sealing, the display is ensured to be safely used in a humid environment, the adjusting sliding plate is matched with the sliding chute, and the fixing screw and the spring are combined, so that the position of the shell is conveniently and flexibly adjusted and stably fixed; and different mounting requirements are met.

The invention discloses a BIPV (building integrated photovoltaics) metal roof meeting first-level waterproof requirements and an intelligent monitoring operation and maintenance system. A waterproof barrier is arranged at a ridge position, and waterproof sealing is formed between the waterproof barrier and a metal roof board; an outwards-folded gutter is arranged on the outer side of the cornice, and the gutter and the metal roof board at the cornice are sealed through a waterproof adhesive tape. A skylight base and a fan base are installed on the metal roof board, and a water segregator is arranged on the upstream face. The system is further provided with a background server and a monitoring device used for monitoring the state of the metal roof and the state of the photovoltaic module, the monitoring device transmits collected data to the background server, and the background server intelligently analyzes the collected data through big data analysis and the AI technology, generates an operation and maintenance report and transmits the operation and maintenance report to a manager. The system has the functions of intelligent monitoring and early warning of the metal roof and the photovoltaic system at the same time, and synchronous intelligent real-time monitoring, early warning and rapid decision making of the roof system and the photovoltaic system can be achieved.

The invention relates to the technical field of pipeline leakage detection, and particularly discloses a positioning robot for leakage detection of a water conservancy water supply and drainage pipe network, the positioning robot sleeves a pipeline and comprises a driving ring, a detection ring and a marking ring, the inner wall of the driving ring is provided with a plurality of rollers and a driving assembly, the inner wall of the detection ring is provided with a probe, the probe is provided with a detection assembly, and the detection assembly is arranged on the detection ring. A waterproof adhesive tape roll and a marking mechanism are arranged on the inner wall of the marking ring, the robot is installed on a pipeline in a sleeving mode, under the action of the driving assembly, the driving ring, the detection ring and the marking ring are driven by the rolling wheels to horizontally move on the pipeline, and when the robot moves to the leakage position of the pipeline, the robot is driven to move. The detection assembly on the probe can detect water leaked from the leakage part, so that the specific leakage position of the pipeline can be known, the marking mechanism on the marking ring can mark the leakage part, the leakage part is subjected to preliminary leakage sealing through the waterproof adhesive tape, and the influence caused by pipeline leakage before a worker carries out maintenance is reduced.

Splices for cable tapes are provided herein. Cable tapes, such as water blocking tapes, that include such splices are also provided. The splices and tapes may be incorporated into a tape or cable wrapping for various conductors, includingpower, telecom, and fiber optic cables. A splice for use with a cable tape comprises a layer of nonwoven fibers. The fibers form a discontinuous adhesive web having a thickness of about 0.15 mm to about 1.0 mm. The discontinuous web structure of the splice is configured to prevent formation of a film in the cable tape. The splice forms a thermal bond with multiple sections of the cable tape while substantially maintaining the thickness of the tape. The splice preferably has a cross web flexibility similar to the cable tape at the elevated temperatures experienced during extrusion, particularly when the tape is applied longitudinally inside a co-extruded tube over the fiber bundle.

The utility model discloses a cutting device which comprises a cutting assembly and a cutting assembly, the cutting assembly comprises a tool apron and a blade, a notch is formed in one side of the tool apron, a groove is formed in the periphery of the notch, and the blade is inserted into the groove; the clamping assembly is arranged on the bottom side of the tool apron and comprises a first clamping plate and a second clamping plate, the blade is located between the first clamping plate and the second clamping plate, and limiting parts are arranged at the ends, away from the blade, of the inner sides of the first clamping plate and the second clamping plate. According to the waterproof adhesive tape cutting device, the limiting part is installed on the lamp bead plate in a clamped mode, then the cutting device is pushed to move in the direction of the lamp bead plate, and therefore the cutting assembly located on the upper portion can cut waterproof adhesive tape to be cut which is attached to the lamp bead plate; and the length between the limiting part and a blade in the cutting assembly is the length of the cut waterproof adhesive tape, so that the height of the cut waterproof adhesive tape is consistent, the specifications of the waterproof adhesive tape in a plurality of lamp bead plate products are consistent, and the consistency of the lamp bead plate products is ensured.

The invention discloses a high-bonding-strength waterproof adhesive tape for a rough surface and a preparation method of the high-bonding-strength waterproof adhesive tape, and belongs to the technical field of functional adhesive tape, the adhesive tape sequentially comprises a release layer, a high-bonding-strength adhesive layer and a reinforced base material layer from bottom to top, the adhesive layer takes a mixture of butyl rubber and polyisobutene as a main polymer, and the reinforced base material layer takes a mixture of butyl rubber and polyisobutene as an auxiliary polymer; and the raw materials such as ternary compound tackifying resin of C5 petroleum resin, C9 petroleum resin and hydrogenated rosin glyceride, and nano reinforcing filler treated by a silane coupling agent are matched. The preparation method adopts a hot melting coating process, and comprises the following steps: banburying, coating and compounding, rolling and curing. The adhesive tape has high thixotropy and good wettability, can adapt to rough surfaces of concrete, painted metal and the like, is excellent in initial adhesion and bonding strength, high in water resistance and weather resistance, convenient to construct and suitable for gap sealing and water resistance in the fields of buildings, pipelines and the like, and the preparation process is environment-friendly and efficient.

The utility model discloses a waterproof, dustproof and antiskid kraft paper box, which relates to the technical field of paper boxes, and comprises an outer box body, an outer box cover is arranged above the outer box body, the outer box body is provided with a sealing assembly, the sealing assembly comprises an inner box body arranged on the inner wall of the outer box body, the upper surface of the inner box body is provided with a sealing groove, and the inner box body is provided with a sealing cover. A sealing inner cover matched with the cross section of the sealing groove is mounted on the lower surface of the outer box cover, mounting pieces are connected to the bottoms of the two sides of the outer box cover, magnetic attraction blocks are mounted on the mounting pieces, and magnetic attraction grooves matched with the magnetic attraction blocks are formed in the outer side wall of the outer box body; according to the utility model, a primary physical barrier is formed through the interference fit of the sealing inner cover and the sealing groove, so that the compressed tight fitting is ensured, water vapor and dust are blocked, a secondary locking force is provided by combining the adsorption of the opposite magnetic poles of the magnetic attraction block and the groove, the accidental opening during transportation is prevented, and the silica gel waterproof adhesive tape is additionally arranged on the sealing contact surface to form double sealing.

The utility model provides a kind of waterproof adhesive tape's installation mechanism of concrete composite board, belong to waterproof adhesive tape installation technical field, a kind of waterproof adhesive tape's installation mechanism of concrete composite board, including workbench, the workbench top is rotatably installed pivot by bearing seat, the pivot top end fixedly connected circular placement plate, the placement plate top places composite board The utility model can drive the reciprocating motion of pressing block before and after by transmission assembly, to drive the reciprocating motion of pressing block before and after, to realize the installation and re-pressing of waterproof adhesive tape, to ensure the installation efficiency and installation effect of waterproof adhesive tape, reduce the physical labor of operator;The cooperation of pivot and placement plate can drive the rotation of composite board, to facilitate the installation waterproof adhesive tape in different positions, further improve installation efficiency;By locking assembly, placement plate can be stabilized in adjusted position, avoid the rotation of placement plate, ensure the stability of composite board.

The utility model belongs to the technical field of automobile parts, disclose a new type of sliding door locking actuator mechanism assembly, it includes base and the cover board that cooperates with base, still includes setting on the base drive mechanism, support subassembly and lock tongue, support subassembly is fixed on the base, lock tongue slidingly connected on support subassembly, drive mechanism cooperates with lock tongue, and drives lock tongue to move on drive mechanism and realizes locking or unlocking, still be equipped with the noise reduction spare of lock tongue adaptation on the base. The utility model's noise reduction spare can reduce the noise, and the use comfort is good, and the emergency unlocking structure can be in outside through corresponding tool and emergency unlocking structure cooperation realizes manual unlocking, and the overall practicality is strong, the symmetrical layout of wheel system and lock tongue can reduce production cost, simplify production management, improve assembly efficiency and strengthen product versatility, set up waterproof adhesive tape in the end outer periphery of the shaft exposure base and cover board to prevent the internal component, further strengthened the practicality of use.

The utility model discloses a waterproof square track vibration isolator, which comprises a top cover and a base, and is characterized in that the bottom end of the top cover and the top end of the base are respectively welded with an enclosure frame, a spring group array is welded between the top cover and the base in the enclosure frame, the spring group array consists of a plurality of springs, and the outer wall of the enclosure frame is brushed with a waterproof glue layer A; the waterproof adhesive tape covers the waterproof adhesive layer A and the gap between the two enclosure frames, so that any possible tiny gaps or joints can be effectively sealed, and water is prevented from permeating into the waterproof adhesive tape, and the waterproof adhesive tape covers the waterproof adhesive layer A and the gap between the waterproof adhesive layer A and the two enclosure frames. The waterproof adhesive layer B is brushed at the joint of the waterproof adhesive tape, the problem that tiny gaps or imperfect attachment possibly exists at the joint of the waterproof adhesive tape is effectively solved, and the waterproof adhesive layer A can resist external moisture and prevent the waterproof adhesive layer A from permeating into the vibration isolator through the space between the enclosure frame and the waterproof adhesive tape.

The utility model discloses a digital display angle leveling instrument capable of being attached to a wall for use, which comprises a leveling instrument main body, an angle ruler, a display screen, a hinging structure for hinging the angle ruler and the leveling instrument main body, and a positioning clamping piece for fixing the angle ruler after the angle ruler rotates, a waterproof adhesive tape capable of being adhered to a wall surface is adhered to the side wall of the end cover assembly, the hinge structure comprises a damping disc provided with a plurality of tooth grooves and at least one rack meshed with the tooth grooves, the rack is connected with the leveling instrument main body, and the damping disc is connected with the bevel protractor through a clamping block and a clamping groove in an embedded mode. According to the utility model, through the arrangement of the bonded waterproof adhesive tape, the leveling instrument can be adhered to a wall surface for measurement, the position of the leveling instrument main body is fixed, the measurement error possibly caused by manual supporting measurement is avoided, the measurement accuracy and the measurement efficiency are improved, and through the arrangement of the hinge structure, the rotation of the goniometer has a certain damping characteristic; and the measurement accuracy is further improved.

The utility model relates to the technical field of road and bridge equipment, and particularly discloses a bridge expansion joint structure, which comprises permanent protection structures, a plurality of expansion joint structures and a plurality of expansion joint connecting structures, and is characterized in that the permanent protection structures are pre-poured in concrete structures of bridge bodies on two sides of an expansion joint; the supporting assembly is arranged at the opening position of the expansion joint through a permanent protection structure and comprises bearing steel, waterproof rubber strips and top steel. According to the bridge expansion joint structure, when the waterproof rubber strip in the expansion joint needs to be replaced, the temporary protection assembly is arranged, so that the upper side of the waterproof rubber strip is conveniently protected by using a temporary protection rubber strip, and the problem that foreign matter falls to the bottom of the bridge and hurts personnel under the bridge is solved. Through the arrangement of the anti-falling reinforcing steel plates, the anti-falling stirrups, the bearing steel and the waterproof rubber strips, a detachable and assembled bridge expansion joint structure is formed, and field assembly and installation are facilitated when the bridge expansion joint is used. The problem that a waterproof adhesive tape is inconvenient to replace when the adhesive tape of a traditional expansion joint structure is aged or damaged is solved.

The utility model relates to the technical field of waterproof rubber strips, in particular to an expansion joint waterproof rubber strip for rail transit, which comprises a protection mechanism and two mounting mechanisms, each mounting mechanism comprises a clamping plate, a clamping frame, an insertion frame, a profile steel component, a positioning component and a connecting component, a positioning rod arranged in the positioning assembly provides installation reference for an inserting rubber barrel in the connecting assembly, a worker disassembles connection of a clamping frame and a clamping plate, the grating plate is rapidly disassembled, in the same way, the installation speed of the inserting rubber barrel is also increased, and the working efficiency is improved. The built-in seat in the profile steel assembly also enlarges the deflection angle of the telescopic protective rubber strip through the arrangement of two arc-shaped surfaces, actual use requirements are better met, the design structure is simple, production is convenient, and the problems that the sealing performance needs to be guaranteed in the mounting and dismounting processes of the protective rubber strip, the precision needed by mounting is high, and quick dismounting and mounting are not facilitated are solved.

The utility model discloses an angle tower leg soil protection structure, which relates to the technical field of angle towers and comprises an iron tower foundation, a tower foot and tower leg main material angle steel. The tower feet are inserted into four studs on the iron tower foundation and are fixedly connected through clamping nuts, the tower leg main material angle steel is fixed to the tower feet through bolts, and the tower leg structure further comprises waterproof adhesive tape, a sleeve, a first epoxy resin mortar layer, a rainproof cap and a protection plate; the rainproof device has the advantages that the clamping nuts on the tower foot and the iron tower foundation can be prevented from loosening and rusting, meanwhile, the first epoxy resin mortar layer can be effectively protected against abrasion through the sleeve, and rainwater or soil can be shielded by buckling the rainproof cap on the outer side surface of the upper end of the sleeve; the nuts at the joints between the bottoms of the tower legs and the tower feet can be prevented from loosening and being rusted, and the protection plates can effectively play a role in abrasion protection on the second epoxy resin mortar layers.

The utility model discloses a waterproof device for an ostomy bag, which belongs to the technical field of medical instruments and comprises a base plate, a bag body, a waistband and a waterproof adhesive tape. A hole is formed in the middle of the base plate, and an annular absorbent cotton pad is arranged on the inner surface of the base plate; the opening of the bag body is hermetically connected with the orifice of the chassis; the waterproof adhesive tape is used for adhering the outer edge of the outer surface of the chassis to the skin. According to the waterproof device for the ostomy bag, the occupied size is small, the base plate is pasted on the skin of a patient through the waterproof adhesive tape, the base plate is attached to the skin in a sealed mode, the ostomy bag naturally droops after being placed in the bag body, and therefore the ostomy and the ostomy bag are prevented from being wetted by water; the bag body is a transparent plastic bag, so that the condition in the bag body is convenient to observe; except the waterproof adhesive tape, other structures of the waterproof device can be repeatedly used after being aired, so that the economic burden of a patient is reduced; the waistband is simple in structure, small in patient skin shielding, convenient and practical.

The present invention relates to seamless bonding of waterproof fabrics and, more specifically, to a seamless bonding method for waterproof fabrics, which, when joining two waterproof fabrics each coated on one side, enables double bonding of the two waterproof fabrics without conventional sewing or seam sealing, thereby facilitating manufacturing of clothes and the like through waterproof fabric bonding. Also, because waterproof tape does not need to be used, the thickness of the seam can be reduced, thereby allowing for a more aesthetically pleasing appearance. Also, with respect to the joined location, no gap is formed in the joint portion even on the outside, and thus, infiltration of moisture can be completely blocked, thereby improving the waterproof performance and durability of waterproof clothing.

The utility model discloses a novel waterproof display screen for new energy vehicle relates to display screen relevant field, including waterproof frame subassembly, drainage component, ventilation subassembly, waterproof frame subassembly rear end is connected with drainage component fixedly, drainage component rear end is connected with ventilation subassembly fixedly, waterproof frame subassembly still includes: waterproof outer frame, waterproof outer frame rear end is connected with drainage component fixedly, the slot is established in waterproof outer frame rear end, the buckle block is fixedly connected in waterproof outer frame through the slot, waterproof light -transmitting film, waterproof light -transmitting film is placed in waterproof outer frame rear end, waterproof adhesive tape, waterproof adhesive tape fixedly connected in waterproof light -transmitting film front and rear both ends, through setting up the drainage component that can drain to display, make this device in the display water when can carry out detection automatic drainage and avoid display water damage.

The utility model discloses a nylon watertight zipper which comprises a first zipper tape and a second zipper tape which are matched for use, the second zipper tape and the first zipper tape are respectively provided with a row of zipper teeth which are arranged at equal intervals along an extending track, and a first waterproof adhesive tape is sewn between the first zipper tape and the zipper teeth on the first zipper tape. A second waterproof adhesive tape is sewn between the second zipper tape and the zipper teeth on the second zipper tape, and when the zipper teeth on the first zipper tape are meshed with the zipper teeth on the second zipper tape, the end, facing the second waterproof adhesive tape, of the first waterproof adhesive tape is tightly attached to the end, facing the first waterproof adhesive tape, of the second waterproof adhesive tape; a cover strip connected with the first waterproof adhesive tape is arranged between the first zipper tape and the second zipper tape and shields a splicing gap between the first waterproof adhesive tape and the second waterproof adhesive tape. The watertight zipper has the advantages of being novel in structure, high in waterproof grade, complete in overall function and high in practicability.

The invention belongs to the technical field of teaching, and discloses an automatic blackboard cleaning machine. The device comprises a T-shaped lead screw rail electric sliding rail module, a miniature two-item four-line stroke stepping motor, a screw nut, a PVC foam board, a household push-pull blackboard dust box, a USB electric sprayer water pump, a waterproof adhesive tape, a long-strip high-density foam dish washing sponge, an aluminum alloy h-shaped groove, a plastic square PVC pipe, a household washboard pad and a DM420 digital low-noise low-heat stepping motor driver. And the STM32F103 is used for developing a C8T6 minimum system board in an embedded manner. The system improves the teaching efficiency, improves the teaching environment, stimulates the interest of students in science and technology, promotes the education intelligence, reduces the labor intensity of teachers, and is an important innovation in the education field.

The utility model discloses a lock bracket, which comprises a lock bracket body, positioning holes are respectively arranged at two ends of the lock bracket body, a side pressure functional groove is further arranged on the lock bracket body, and a locking step is arranged in the side pressure functional groove, so that a climbing function is formed through the locking step in a window sash locking process to assist in locking. By means of the structural design, the lock seat is provided with the side pressing function groove, in the locking process, window sash deviation can be achieved, extrusion between the waterproof rubber strip and the window frame is caused, and the important functions of sealing, water resistance and the like are achieved, the lock seat is further provided with the auxiliary locking step, in the window sash locking process, the matching part has the climbing function, the final complete contact state can be achieved, and the locking function is achieved.

The utility model discloses a video endoscope matching device in an anchor cable hole, which belongs to the technical field of engineering construction, and comprises a pre-stressed anchor cable hole drilled on a side slope, an endoscope alignment assembly comprises an upper shell and a lower shell which are symmetrically wrapped on the peripheral side of an industrial endoscope, and the upper shell and the lower shell are wound, wrapped and fixed through a waterproof adhesive tape. A guiding protection assembly is arranged at the end, extending to the deep position of the pre-stressed anchor cable hole, of the industrial endoscope and close to one side of the endoscope alignment assembly, and the guiding protection assembly covers the end, back on to the endoscope displayer, of the endoscope alignment assembly in a semi-closed mode. The guiding protection assembly is in collision contact with the hole wall through the elasticity of the guiding protection assembly and guides the industrial endoscope to be smoothly put down through rolling friction generated between the guiding protection assembly and the hole wall. According to the endoscope alignment assembly, by correcting the angle of the lens, it is ensured that shot pictures are clear and stable, the problem that in a traditional method, the visual angle is not correct is solved, and the quality and accuracy of video images are improved.