70results about How to "Achieving Sealed Protection" patented technology

The invention discloses a loading control method for kernel module in an operating method. The loading control method includes the steps of 1) during guiding of an operating system, closing a kernel module processing capability of all users through a kernel sealing module in a kernel state and starting a user verification function of the kernel sealing module, and allowing the an operating system kernel to entering a sealing state; 2) when the operating system runs, acquiring a kernel module operating request through the kernel sealing module, and verifying the user or application sending the kernel module operating request, if the verification passes, the kernel module processing capability of the user or application is started, and the target kernel module requested by the user or application is loaded or unloaded through the operating system kernel. The loading control method has the advantages of safe control of the kernel module loading, sealing protection of the kernel module, high safety performance, and high flexibility of loading the kernel module, simplicity in completing method and high universality.

The invention discloses a push-pull-type sterile medical cotton swab. The cotton swab a cotton swab rod, a sealing film, a cotton swab head, an insertion plate, a limit plate, an outer sleeve, slide blocks, a top rod, insertion rods and elastic plates. A cavity is hollowly formed in the cotton swab rod, the sealing film is arranged at the bottom of the cotton swab rod, and the cotton swab head isarranged at the bottom of the cotton swab rod; a slide groove is formed in the outer wall of the upper portion of the cotton swab rod, a slide groove is formed in the inner side wall of the lower portion of the cotton swab rod, and the insertion plate and the limit plate are connected into the cotton swab rod; a solution cavity is formed between the limit plate and the sealing film, the top rod isarranged on the insertion plate and the limit plate, and the outer sleeve sleeves the cotton swab rod and is slidingly connected to the cotton swab rod; the sealing film is arranged at the bottom ofthe outer sleeve, the insertion rods are connected to the slide blocks, the elastic plates are fixedly arranged on the side faces of the insertion rods, and a through hole is formed in the insertion plate. The push-pull-type sterile medical cotton swab is provided with a disinfectant, the disinfectant does not need to be dipped back and forth, the cotton swab is clean, sanitary and more convenientto use, the cotton swab head is subjected to sterile protection, and the cotton swab is safer and more sanitary to use.

The invention discloses a sterile medical cotton swab. The cotton swab comprises a cotton swab rod, a sealing film, a cotton swab head, an inner sleeve, a screwing plate, screws and an outer sleeve. Acavity is hollowly formed in the cotton swab rod, the sealing film is arranged at the bottom of the cotton swab rod, and the cotton swab head is arranged at the bottom of the cotton swab rod; the inner sleeve is arranged in the cotton swab rod, the screwing plate is arranged in the cotton swab rod, and the screwing plate and the sealing film are sealed to form a solution cavity; the screws are rotatably arranged on the bottom face of the inner sleeve and the screwing plate, the bottoms of the screws are tip ends, and the tip ends are closed to the sealing film; the tops of the screws penetrate through the bottom face of the inner sleeve and extend into the inner sleeve, the outer sleeve movably sleeves the exterior of the cotton swab rod, and the top of the outer sleeve is rotatably and movably connected to the outer side face of the cotton swab rod; the sealing film is arranged at the bottom of the outer sleeve, and the cotton swab head is located in the outer sleeve. The sterile medical cotton swab is provided with a disinfectant, the disinfectant does not need to be dipped back and forth, the cotton swab is clean, sanitary and more convenient to use, the cotton swab head is subjected to sterile protection, and the cotton swab is safer and more sanitary to use.

The invention provides a submarine three-dimensional terrain investigation and surveying and mapping unmanned underwater vehicle which comprises a plurality of pressure-resistant bins, and every two adjacent pressure-resistant bins are connected through a sealing connecting mechanism; each pressure-resistant bin comprises a tail bin, and the rear portion of the tail bin is connected with a main propeller through a connecting mechanism; the main propeller comprises a main shaft, an aluminum base body, inner rotor magnetic stripes, outer rotor magnetic stripes, a protective cover and a propellerhub, each of the inner rotor magnetic stripes and the outer rotor magnetic stripes comprises a plurality of magnetic stripe rings, inner rotor space rings are arranged among the magnetic stripe ringsof the inner rotor magnetic stripes, and outer rotor space rings are arranged among the magnetic stripe rings of the outer rotor magnetic stripes; the main shaft is located in the middle of the aluminum base body, the inner rotor magnetic strips and the inner rotor space rings are fixed to the outer side face of the aluminum base body, the outer rotor magnetic strips and the outer rotor space rings are fixed to the inner side face of the propeller hub, and the protective cover is located between the inner rotor magnetic strips and the outer rotor magnetic strips. The main propeller of the underwater vehicle is high in transmission efficiency, high in working efficiency, high in energy utilization rate and high in accuracy.

The invention discloses an inspection well lid facilitating theft prevention. The inspection well lid comprises a well seat and a well lid body, clamping grooves are formed in the inner wall of the well seat in a concave mode, an accommodating cavity is horizontally formed in the well lid body, a sleeve with the upper end being not provided with a sealing opening is welded to the upper end of the accommodating cavity, a vertical rod is vertically welded into the middle end of the accommodating cavity, a rotating disc is rotationally arranged at the middle end of the vertical rod in a sleeving mode, three connecting grooves are formed in the rotating disc in circumferential array and concave modes, and a supporting spring is rotationally arranged at the top end of the vertical rod. According to the inspection well lid, a suspension cover is arranged in a suspended mode, so that the suspension cover and an opening and closing structure for directly opening the well lid are mounted in a differentiated mode, the purpose of opening the well lid is achieved through rotation of the suspension cover and the rotating disc, a well lid opening switch is arranged in a hidden mode advantageously, thus the opening difficulty is improved, and the theft preventing function is effectively achieved; and by arranging the sleeve, the suspension cover is protected through a threaded cover in threaded connection with the sleeve, so that repeated extrusion of ground surface external force to the suspension cover is avoided, and the service life of the well lid is prolonged advantageously.

The invention relates to an LED lamp tube convenient to replace and install. The LED lamp tube comprises a lamp shell, a base plate, two connecting blocks and at least two lighting mechanisms. A sealing mechanism is further included. Each lighting mechanism comprises a conductive block, a lamp bead, a conductive plate, a power supply assembly, a pressing plate, a first spring, a connecting plate and two mounting assemblies. Each mounting assembly comprises a flat plate, a sleeve, a fixing block, a mounting rod, a first through hole, a second through hole, a third through hole and a fourth through hole. The LED lamp tube convenient to replace and install has the advantages that: when the lamp beads need to be replaced, people only need to take a pull hook down from a pull ring and rotate asealing cover to open an opening and then rotate the sleeves in the mounting assemblies to install and detach the conductive blocks and the lamp beads to finish the replacement of the lamp beads. Then, the sealing cover is rotated to cover the opening, and the pull hook hooks the pull ring, so that the sealing protection of the lamp shell is realized, the disassembly, assembly and replacement of the lamp beads are more convenient and faster, and the practicability of the LED lamp tube is improved.

The invention relates to a fuel cell proton exchange sealing membrane preparation method and system, and the system comprises a base membrane supply unit which supplies and transmits a proton exchange membrane to a bonding unit; a glue layer supply unit, used for supplying and conveying a sealing glue layer to the bonding unit, the glue layer supply unit being provided with a die-cutting machine, and a central hollow part of a sealing adhesive layer being formed, the glue layer supply unit comprising a first glue layer supply unit and a second glue layer supply unit and used for providing a first sealing glue layer for bonding the upper surface of the proton exchange membrane and a second sealing glue layer for bonding the lower surface of the proton exchange membrane; and a bonding unit, used for bonding the first sealing adhesive layer and the second sealing adhesive layer to the upper surface and the lower surface of the proton exchange membrane to form a proton exchange sealing membrane. The transverse length of the sealing adhesive layer is larger than that of the proton exchange membrane, and after bonding, the sealing adhesive layer seals the transverse edge of the proton exchange membrane, so that the use cost of the proton exchange membrane is reduced, and the sealing performance of the proton exchange membrane and the safety of a membrane electrode are improved.

The invention discloses a waterproof cover assembly for a monitoring station and the monitoring station with the same. The waterproof cover assembly for the monitoring station comprises a first coverbody and a second cover body. The first cover body is connected with an electric control box in a sealed mode, and the first cover body is provided with an inserting groove; and the second cover bodyis connected with the first cover body in a sealed mode so as to open or close the inserting groove. According to the waterproof cover assembly for the monitoring station, the first cover body in sealed connection with the electric control box is arranged, the inserting groove is formed in the first cover body, and the second cover body capable of being in sealed fit with the inserting groove is arranged above the first cover body, so that on one hand, the electric control box can be sealed and protected; and the sealing protection of the inserting groove can also be realized. On the other hand, when the electronic components arranged in the inserting groove need to be used or maintained, only the second cover body needs to be opened, and matched connection between the first cover body andthe electric control box does not need to be disassembled.

The present invention discloses a fully sealed intelligent water meter anti-theft device, including a main shell, a mounting groove is provided at the bottom of the main shell, and a sealing plate is sealed and connected at the bottom opening near the mounting groove, a plurality of fixed seats are evenly distributed and installed on the upper end surface of the sealing plate, a connecting shaft is vertically connected to the fixed seats, a connecting head is provided at the top of the connecting shaft, and the connecting head and the connecting shaft are an integrated structure, a plurality of connecting seats are fixedly connected inside the main shell, and the connecting seats and the connecting shaft are arranged one by one, a connecting hole is provided at the bottom of the connecting seat, and the connecting hole and the connecting shaft are clearance-matched, a placement groove is provided on one side of the main shell, and a buzzer is fixedly installed inside the placement groove. This fully sealed intelligent water meter anti-theft device has a simple and reasonable structure, a novel design, and is easy to install. It can effectively prevent the water meter from being disassembled during use, has high safety, and is convenient for wide promotion and use.

The utility model relates to the technical field of unmanned aerial vehicle shooting, and discloses an unmanned aerial vehicle shooting device which comprises an unmanned aerial vehicle body, an extension arm and a propeller, and further comprises an undercarriage arranged at the bottom of the unmanned aerial vehicle body and used for assisting in lifting, and a telescopic mechanism is arranged at the bottom of the unmanned aerial vehicle body; through the arrangement of the telescopic mechanism and the retracting and releasing mechanism, after the unmanned aerial vehicle takes off, a motor is started to drive a first gear and a second gear to rotate, so that a first telescopic loop bar rotates to drive a second telescopic loop bar to rotate to enable a third telescopic loop bar to slide downwards, and meanwhile, a supporting rod is driven to move downwards; the telescopic mechanism drives the connecting rod to slide on the inner wall of the limiting sliding groove, so that the protective cover is opened, the camera is released for operation, the shooting view field is wider, the camera is retracted into the protective cover through the telescopic mechanism during falling, the protective cover is closed under the action of the retracting and releasing mechanism, sealing protection is achieved, and the camera is prevented from being damaged.

The invention relates to a cerebrovascular disease analyzing device which comprises a storage box and an analyzing equipment body, wherein the analyzing equipment body is movably arranged in the storage box, an operating hole is formed in a side wall of the storage box, and a rotatable supporting plate is rotatably arranged in the operating hole. A special storage device is additionally arranged on the analyzing equipment body. By arranging the special storage device, the analyzing equipment body can be stored. In a transfer process, the analyzing equipment body is prevented from colliding in the rotating process without additionally arranging the storage equipment, so that the analyzing equipment body is protected. By arranging the special storage equipment to play a supporting role, the analyzing equipment body can be sealed by the special storage equipment in long-time placement, and thus, dust can be prevented from falling to the analyzing equipment body, and the analyzing equipment body is further prevented from colliding, thereby, playing a role of protecting the analyzing equipment body.

The utility model provides a mixing and stirring device for producing a compound microbial fertilizer, which comprises a mixing tank, and a sealing cover is mounted at the upper end of the mixing tank through bolts; meanwhile, the lower side of the stirrer is inserted into the mixing tank in a penetrating manner; a material injection head is welded to the left side in the sealing cover. A supporting discharging seat structure is mounted at the bottom of the mixing tank. Through the arrangement of the supporting discharging seat structure, accumulated materials are scattered during rotation, and materials on the surface of the pushing sealing seat are cleaned, so that the materials can be conveniently and cleanly discharged through the discharging pipe.

An organic photoelectric device test fixture relates to the field of electric device testing. The invention aims to solve the problems that the existing organic photoelectric device fixture will destroy the device, the photoelectric device is affected by the air and the operation is cumbersome during the testing process. The organic optoelectronic device test fixture described in the present invention uses a miniature shrapnel type electrode column and a spring as a fixture to replace the crocodile clip, and the battery is tightly clamped between the two, so that the purpose of not destroying the battery and being able to test very small devices is achieved. ; The fixture is fixed in a sealed box, thereby realizing the inert gas sealing protection of the device; using a multi-speed switch with a plurality of miniature shrapnel electrode columns to achieve the purpose of semi-automatically testing the performance of organic photoelectric devices quickly and accurately. The test fixture of the present invention has the characteristics of low cost, no damage to devices, sealing inert gas protection, flexible transformation, semi-automation, etc., and is suitable for photoelectric performance testing of organic photoelectric devices of various sizes.

An organic photoelectric device test fixture relates to the technical field of photoelectric device test. The invention aims to solve the problem that the existing organic photoelectric device fixture may damage devices, photoelectric devices are affected by air in the test process, and the operation is complicated. According to the organic photoelectric device test fixture of the invention, micro elastic sheet type electrode masts and springs are matched to form a fixture replacing an alligator clip, and a battery is tightly clamped between the micro elastic sheet type electrode masts and the springs, so that the battery is not damaged, and even a very small device can be tested. The fixture is fixed into a sealed box, and inert gas sealing protection to devices is realized. A multi-gear switch is used to match the multiple micro elastic sheet type electrode masts to achieve the purpose of quickly and accurately testing the performance of organic photoelectric devices in a semi-automatic manner. The test fixture of the invention is low in cost, does not damage devices, can realize sealing protection through inert gas, can be flexibly reformed, and is semi-automatic. The test fixture is applicable to photoelectric performance test of organic photoelectric devices of various sizes.

The invention discloses a water circulation monitoring control device with a flow display function and a welding robot. The water circulation monitoring control device comprises a framework, flow sensors and a control panel; the control panel comprises a signal processing circuit and a display unit; and the flow sensors, the signal processing circuit and the display unit are arranged in the framework, the flow sensors are used for monitoring the water flow, the signal processing circuit is used for generating flow information according to the monitoring signal, then the flow condition is displayed in real time by the display unit, and thus the flow condition can be mastered in real time via an observation window in the control panel. By means of the water circulation monitoring control device with the flow display function and the welding robot, the on / off state and flow of water circulation can be controlled and monitored in real time, water can be quickly controlled to flow or stop,and thus the situation that cooling water leaks out to pollute and even damage surrounding facilities is avoided.

The invention discloses a special protective garment for nucleic acid detection, relates to the technical field of epidemic prevention, and solves the problems that the existing protective garment is incomplete in protection, gloves and shoes do not have a stable sealing function, full-coverage protection is not facilitated, a protective gap exists, and the epidemic prevention performance is influenced. The special protective clothing for nucleic acid detection comprises a clothing body and protective shoes, and gloves are integrally arranged at the sleeve ends of the two sides of the clothing body; exhaust valves are arranged on the shoulders of the clothing body and are one-way valves; the top of the protective shoe is integrally provided with a shoe ring, the shoe ring is made of an elastic material, the shoe ring can be stretched by 1.2 times, the protective shoe is arranged, a protective structure capable of being combined in a sealed mode is provided, an assembling ring is in butt joint with the top of the shoe ring, sealing protection of the protective suit can be achieved, and the hand and foot parts are completely covered; and the gloves are of an integrated structure, so that the protection function of the protective clothing is increased.

The invention discloses a cable tray comprising a tray body, a sealing cover, a telescopic support frame, a wire feeding device and a gas protection device. The tray body comprises a central column and a baffle disk, and the baffle disk comprises a first baffle disk and a second baffle disk which are arranged in parallel symmetrically; the circle center positions of the first baffle disk and the second baffle disk are provided with through holes, and the two ends of the central column are connected to the through hole positions of the first baffle disk and the second baffle disk separately; cables are wound on the central column which is of a hollow tubular structure, and the central column is internally provided with the telescopic support frame rotatably; and the sealing cover is arranged between the first baffle disk and the second baffle disk, and provided with the wire feeding device and the gas protection device. The cable tray is simple in structure, and easy to use, and the purposes of vertical arrangement and sealed storage can be achieved.

The invention relates to short-distance transportation equipment used in the magnesium sulfate processing process, wherein the multi-layer plate frame and the supporting column are correspondingly arranged on the vehicle body, and the containing boxes are sequentially arranged on the multi-layer plate frame and rotationally connected with the supporting column. The containing boxes are matched with upper plates and lower plates in the multi-layer plate frame to form a sealed box body, and a driving mechanism which can vertically move and is used for sequentially driving the multiple containingboxes to horizontally rotate to achieve opening or closing of the containing boxes is arranged on the vehicle body. The upper plate and the lower plate in the multi-layer plate frame are matched withthe placing box to form a sealed box body, so that magnesium sulfate in the placing box is sealed and protected; and secondly, the first incomplete gear and the second incomplete gear are correspondingly engaged with the rotating gear and the lifting gear correspondingly and rotate in a front-and-back staggered engagement mode, so that the multiple containing boxes on the multi-layer plate frameare sequentially rotated up and down to be opened or closed, quick loading and unloading of magnesium sulfate are achieved, and the situation of magnesium sulfate leakage is avoided.

The invention discloses a rechargeable gun protective structure of a novel energy electric vehicle. The rechargeable gun protective structure comprises a rechargeable gun head which is used for charging a novel energy electric vehicle, wherein the front end surface of the rechargeable gun head is provided with a sliding cavity, and one side of the sliding cavity is provided with an opening; the front end surface of the rechargeable gun head is provided with one or more first assembly holes, and the first assembly holes are matched with a charging interface of the novel energy electric vehicle;each first assembly hole is provided with a terminal; and a movable plate is installed in the sliding cavity, the movable plate is provided with second assembly holes with the same quantity with thefirst assembly holes, and when the first assembly holes are right opposite to the second assembly holes, the terminal in the first assembly hole is exposed. By adopting the charger protection structure, the problem that the rechargeable gun head needs a protection cover in the prior art can be solved, after the use, as long as the movable plate is shifted, and the first assembly holes are staggered to the second assembly holes, so that the terminals inside the assembly holes can be protected in a sealing manner.

The invention discloses a semiconductor chilling plate and a manufacturing method thereof. The method comprises the steps that: a semiconductor refrigeration assembly is provided, the semiconductor refrigeration assembly comprises a first insulation heat conduction layer, a second insulation heat conduction layer and a semiconductor layer, the first insulation heat conduction layer and the second insulation heat conduction layer are oppositely arranged, the semiconductor layer is located between the first insulation heat conduction layer and the second insulation heat conduction layer and comprises a plurality of couple pairs, and the couple pairs are connected in series and electrically connected with wires; and the side, provided with the first insulation heat conduction layer, of the semiconductor refrigeration assembly is a cold end, and the side, provided with the second insulation heat conduction layer, of the semiconductor refrigeration assembly is a hot end. A packaging structure is formed, the packaging structure is enabled to cover the side wall of the semiconductor refrigeration assembly, the packaging structure and the first insulation heat conduction layer form a first groove, and the wire is enabled to penetrate through the packaging structure and extend to the outer side of the packaging structure so as to obtain the semiconductor refrigeration sheet. Therefore, the obtained semiconductor chilling plate can bear the pressure of more than 1000 PSI.

The utility model provides an electric connection device and a battery changing ship, which are applied to the technical field of ship battery changing, and the electric connection device comprises an electric connector, a shell, a protective cover and a protective sleeve, the electric connector is used for changing the electricity of the ship, and the shell, the protective cover and the protective sleeve are used for protecting the electric connector against water and damp air. The electric connection device further comprises a motor, a base and a guide rail arranged on the base, and the shell and the electric connector are movably connected with the guide rail after being fixed. Under the driving of the motor, the shell moves on the guide rail and drives the electric connector to move, so that the automatic butt joint of the electric connector is realized.

The invention discloses a food production raw material processing device which comprises a supporting frame and a rinsing tank, the rinsing tank is installed at the top end of the supporting frame, a containing cavity is formed in the rinsing tank, a filtering assembly is arranged in the rinsing tank and comprises a rotating rod rotationally installed in the rinsing tank, a first motor is installed on the outer surface of the rinsing tank, and a second motor is installed on the outer surface of the first motor. According to the food production raw material processing device, a combined filter screen structure formed by combining two single screens is adopted, so that the filtering area is increased, the filtering effect is improved, the filtering effect is improved, and the food production raw material processing device has the advantages that the food production raw material processing device is convenient to use and high in practicability. And the steel frame is installed through the staggered steel wires, so that the strength and the stability of the combined type filter screen are effectively enhanced, the combined type filter screen is not prone to deformation or damage in the long-time and high-strength use process, and the continuity and the high efficiency of filtering are guaranteed.

The invention relates to the technical field of economic management look-up, and discloses a look-up device for economic management, which solves the problems that a display screen is exposed and is easily influenced by dust, the display screen cannot be protected, and meanwhile, the device is relatively large in size and inconvenient to move, so that the portability is relatively poor, and comprises a base and a display screen body, a lifting plate is arranged at the inner bottom end of the base, moving wheels are symmetrically arranged at the bottom end of the lifting plate, a lifting mechanism is connected to the top end of the lifting plate, a supporting column is installed in the middle of the top end of the base, a supporting plate is arranged above the supporting column, a height adjusting mechanism connected with the supporting plate is arranged in the supporting column, and a supporting table is arranged at the top end of the supporting plate; through the action of the moving wheels, the height adjusting mechanism and the lifting mechanism, the height of the display screen body can be conveniently adjusted to a proper position, a user can conveniently operate the display screen body, meanwhile, the moving wheels are separated from the ground, and then the operation stability of the display screen body is improved.

The oil injector comprises a valve shell and a flux sleeve, and further comprises a positioning boss fixedly arranged at the bottom of the flux sleeve. The groove is formed outside the valve shell and is used for fixedly mounting the positioning boss; the protection mechanism is arranged outside the valve shell and used for relieving pressure borne by the valve shell and conducting dustproof protection. The positioning ring fixedly sleeves the valve shell, and the bottom surface of the positioning ring is fixedly connected with the dust cover; the movable ring is movably arranged outside the valve shell in a sleeving mode and located below the dust cover; the dustproof part is fixedly arranged on the top surface of the movable ring; the top surface of the sealing cover is fixedly connected with the positioning ring and is positioned outside the dustproof cover; the supporting ring is fixedly connected with the top of the dustproof part; the two ends of the elastic sealing part are fixedly connected with the sealing cover and the supporting ring, and an abutting block is fixedly arranged on the inner wall; and the deformation part is arranged on the supporting ring, and the side edge of the deformation part abuts against the abutting block. In daily production and life, through cooperation of the dustproof cover and the dustproof part, dustproof protection of the oil sprayer is achieved, and impurities are prevented from entering the oil sprayer to affect normal use of the oil sprayer.

The invention relates to an LED lamp tube convenient to replace and install. The LED lamp tube comprises a lamp shell, a base plate, two connecting blocks and at least two lighting mechanisms. A sealing mechanism is further included. Each lighting mechanism comprises a conductive block, a lamp bead, a conductive plate, a power supply assembly, a pressing plate, a first spring, a connecting plate and two mounting assemblies. Each mounting assembly comprises a flat plate, a sleeve, a fixing block, a mounting rod, a first through hole, a second through hole, a third through hole and a fourth through hole. The LED lamp tube convenient to replace and install has the advantages that: when the lamp beads need to be replaced, people only need to take a pull hook down from a pull ring and rotate asealing cover to open an opening and then rotate the sleeves in the mounting assemblies to install and detach the conductive blocks and the lamp beads to finish the replacement of the lamp beads. Then, the sealing cover is rotated to cover the opening, and the pull hook hooks the pull ring, so that the sealing protection of the lamp shell is realized, the disassembly, assembly and replacement of the lamp beads are more convenient and faster, and the practicability of the LED lamp tube is improved.

This utility model discloses a clamp for welding and fixing stainless steel pipe fittings, including a chuck for holding the stainless steel pipe fittings. The chuck is mounted on the output end of a hollow motor. An air intake mechanism is installed inside both the chuck and the hollow motor to fill the stainless steel pipe fittings with argon gas. The air intake mechanism includes an air intake pipe with its outlet located inside the stainless steel pipe fitting. The air intake pipe is slidably disposed within a sliding sleeve, which is fixedly installed within a ring plate. The ring plate is fixedly connected to the end of the hollow motor away from the chuck. This utility model provides a clamp that, when using the chuck to hold the pipe fittings for rotary welding, can supply argon gas into the pipe fittings, achieving back-side argon filling and sealing protection of the weld area.

The invention relates to the technical field of fire extinguishing vehicles, discloses a cable well pipeline breakdown van, and solves the problems of low safety and low fire extinguishing efficiency caused by the fact that a worker needs to hold a fire extinguishing tool to enter a cable well pipeline for fire extinguishing during fire extinguishing of the cable well pipeline breakdown van. A carriage is arranged at the top end of the emergency vehicle body, a carbon dioxide storage tank is arranged in the carriage, a connector is arranged on one side of the carbon dioxide storage tank, a movable box is movably connected to one side of the carriage, a first opening is formed in the side, close to the connector, of the movable box, and a second opening is formed in the bottom end of the movable box. A fire extinguishing mechanism penetrating through the second opening is arranged in the movable box. And through the design of the fire extinguishing mechanism, the height adjustment of the fire extinguishing spraying barrel in the pipeline is conveniently controlled, the situation that the fire extinguishing spraying barrel is manually held for fire extinguishing operation is avoided, personnel protection is effectively achieved, and meanwhile the fire extinguishing efficiency is improved.

The utility model discloses a button and sealing ring integrated structure of automobile electric port lid, including base shell, the base shell is inserted with the execution lever, be provided with the drive assembly of drive execution lever telescoping in the base shell to and be used for the request switch of drive assembly action, the control portion of request switch exposes on the base shell, the base shell constitutes the sliding mouth that supplies execution lever to stretch out, and be provided with the sealing ring on the base shell, the sealing ring includes the first sealing portion and second sealing portion of joint, the first sealing portion covers and is established on the control portion of request switch, the second sealing portion is embedded in the sliding mouth, and abuts execution lever outer periphery.

The invention relates to a radio frequency connecting device adopting a riveting and double-layer sealing mode. The radio frequency connecting device is characterized in that the device comprises a first radio frequency connector (A) and a second radio frequency connector (B) which are connected together in a plugging manner, and also comprises a threaded sleeve (C) surrounding the first radio frequency connector (A) and the second radio frequency connector (B); the contact head adopts a fixing mode of pressing fit and then riveting, and is easy to process, so that the end head of the first shell shrinks, tightens and deforms towards the inside in the radial direction, the fixed end of the internal contact head is wrapped and tightened in the end head of the first shell, and the stable installation of the contact head is realized on the premise of not adding an external fixing piece; a mechanical axial positioning surface is arranged at the right end, and the first sealing ring and thesecond sealing ring are correspondingly arranged at the radial inner side and the radial outer side of the mechanical axial positioning surface respectively, so that sealing protection is realized onthe radial inner side and the radial outer side of the mechanical axial positioning surface at the same time, and the waterproof performance is further improved.

The invention discloses a fully-sealed intelligent water meter anti-theft device, which comprises a main shell, wherein a mounting groove is formed in the bottom part of the main shell, a sealing plate is connected to the position, close to a bottom opening of the mounting groove, of the main shell in a sealed mode, multiple sets of fixing bases are evenly distributed and mounted on the upper end face of the sealing plate, connecting shafts are vertically connected to the fixing bases, the top ends of the connecting shafts are all provided with connectors, the connectors and the connecting shafts are of an integrated structure, the interior of the main shell is fixedly connected with multiple sets of connecting bases, the connecting bases and the connecting shafts are arranged in a one-to-one correspondence mode, connecting holes are formed in the bottom parts of the connecting bases, the connecting holes and the connecting shafts are in clearance fit, a placement groove is formed in one side of the main shell, and a buzzer is fixedly mounted in the placement groove. The fully-sealed intelligent water meter anti-theft device is simple and reasonable in structure, novel in design, convenient and fast to install, capable of effectively preventing the water meter from being detached in the using process, high in safety and convenient to widely popularize and use.