309results about How to "Guaranteed protective effect" patented technology

The utility model discloses a kandelia candel seedling transplanting device, which belongs to the technical field of transplanters and comprises two groups of transplanting shovels and a support frame, the support frame comprises a connecting ring, two groups of fixing rods and a group of fixing pipes, the two groups of fixing rods and the group of fixing pipes are fixed on the connecting ring, and the fixing rods are positioned on two sides of the connecting ring. The transplanting shovels moving downwards are folded towards the middle through the inclined face of the fixing frame, kandelia candel seedlings in an original planting field can be conveniently shoveled and moved, then the squeezing plate is limited through the locking assembly, the squeezing plate is used for limiting the transplanting shovels, it is guaranteed that the seedlings and soil around the roots are protected through the two transplanting shovels, and the transplanting efficiency is improved. After a planting field is planted, only the supporting frame needs to be inserted into the soil, the supporting frame drives the transplanting shovel to be inserted into the soil again, the soil is extruded outwards to form a planting pit, the planting pit does not need to be prepared in advance, procedures are reduced, and the transplanting efficiency is improved.

The invention belongs to the technical field of lithium battery production, and particularly relates to a cylindrical battery pole end half film sleeving device which comprises a rack large plate, a feeding and discharging mechanism, a push rod mechanism for pushing a battery to a rotating platform, a transplanting mechanism for rotating and positioning the battery, a battery film sleeving mechanism, a battery discharging mechanism, a film sleeving mechanism support and a rotating support mechanism. According to the invention, after thermal shrinkage, the protection on the end face of the positive electrode is ensured, and the code spraying requirement is met; the use amount of materials is effectively saved, so that the production and purchase cost is reduced; the problem of non-uniform thermal shrinkage caused in the production process of the battery cell membrane is solved, and the customization requirement of a user for tagging on a steel shell or membrane can be met; safety protection of an effective physical level is provided for the junction sealing end of the positive electrode and the negative electrode of the battery, and the safety risk caused by short circuit due to collision under the condition that the formation and capacity grading end is electrified and transplanted is avoided; during steel shell code spraying, a code scanning gun reads and stores a code assigned on the sleeve film during use, and battery data can be conveniently traced during production.

The utility model discloses a heat radiation structure and a grid-connected cabinet. The heat dissipation structure comprises a cabinet body and a heat dissipation main body. The cabinet body is provided with an inner cavity; the heat dissipation main body comprises a shell, a heat exchange core body and a first fan; the shell is connected to the cabinet body and is provided with a flow equalizing cavity; the heat exchange core is arranged in the shell and provided with a first air channel and a second air channel which are isolated from each other, the first air channel is provided with an air return sub-flow channel and an air blowing sub-flow channel, the air return sub-flow channel and the air blowing sub-flow channel both communicate with the inner cavity, and the flow equalizing cavity communicates between the air return sub-flow channel and the air blowing sub-flow channel. The inner cavity, the air return sub-flow channel, the flow equalizing cavity and the air blowing sub-flow channel are communicated in sequence and form a closed circulating flow channel together with the inner cavity; the air inlet end of the second air duct and the air outlet end of the second air duct are used for communicating with the outside of the shell and the outside of the inner cavity and are isolated from the inner cavity and the flow equalizing cavity. And the first fan is arranged on the circulating flow channel. The heat dissipation structure in the technical scheme of the utility model has a high protection level and a good heat dissipation effect on devices in the cabinet body.

The invention relates to the technical field of water pump engineering, and provides a water pump blade cavitation erosion area shape and material loss amount calculation method under a sand carrying condition, and the method comprises the following specific steps: determining characteristic parameters, carrying out transient numerical simulation on a research object to determine a cavitation area, and obtaining related flow field parameters; introducing a flow velocity correction factor and a sediment carrying correction factor to respectively reflect the influence of the water flow velocity and sediment particles on the loss amount of the cavitation erosion material; the cavitation erosion offset distance is calculated, and the shape of the cavitation erosion area is determined according to the cavitation erosion offset distance and the geometric contour of the cavitation area; and calculating the material loss amount of the cavitation erosion area by using the flow velocity correction factor and the sand carrying correction factor. Aiming at a given water pump, the cavitation erosion area shape and the material loss amount of the blade of the water pump under different sand carrying working conditions can be quickly and accurately predicted, the problem that the cavitation erosion area shape and the material loss amount of the blade of the water pump under the sand carrying condition are difficult to accurately predict by an existing method is solved, and effective guarantee is provided for cavitation erosion protection of the water pump under the sand carrying condition.

The invention relates to the technical field of soil investigation and sampling, and discloses a soil sampling device and a use method thereof.The soil sampling device comprises a main body part and a disassembly and assembly part, the main body part comprises a sample pushing-out mechanism, the disassembly and assembly part comprises a cleaning mechanism and a hard soil pushing-out auxiliary mechanism, the cleaning mechanism is movably arranged at the bottom of the sample pushing-out mechanism, and the cleaning mechanism is movably arranged at the bottom of the hard soil pushing-out auxiliary mechanism; the hard soil push-out auxiliary mechanism is movably arranged at the top of the sample push-out mechanism, the hard soil push-out auxiliary mechanism comprises a connecting unit, a reversing unit, a rolling and pulling unit, a transmission unit and a pull rope unit, the connecting unit is arranged on the surface of the sample push-out mechanism, and the reversing unit is arranged at the top of the sample push-out mechanism. According to the soil sampling device and the use method thereof, a soil sample in the cutting ring can be taken out through the sample push-out mechanism after sampling of the cutting ring, and it is guaranteed that the cutting ring can conduct sampling again, so that it is avoided that many cutting rings are additionally carried, and meanwhile the situation that the number of the cutting rings limits the number of samples during sampling is avoided.

A wafer aging test device relates to the technical field of wafer test equipment and comprises a wafer aging test fixture and a wafer aging test bench, and the wafer aging test fixture comprises a fixture probe board card assembly, a fixture chuck assembly and a heating sucker assembly. The clamp probe board card assembly comprises a board card supporting plate, a board card adapter plate, a probe fixing plate and a bolt assembly, the clamp chuck assembly comprises a chuck base, and the heating suction cup assembly sequentially comprises a heating suction cup, a heating suction cup gasket, a heating piece and a heating piece supporting plate from top to bottom. The wafer aging test bench comprises a test driving plate module, a lifting module, a translation module and a bearing bench, the test driving plate module comprises a driving plate bottom plate, a driving plate assembly and a driving switching probe plate, and the bearing bench comprises a clamp carrier plate and a clamp base plate. The device is small in size and small in occupied space, in addition, the device structure is designed in a modular mode, operation of testers is facilitated, the testing efficiency is improved, and large-scale testing is achieved.

The invention belongs to the technical field of environmental protection and slope protection reinforcement of water conservancy projects of thermal power plants, and provides a slope protection and protection method for a downstream soft rock enrockment area of a stepped concrete faced rockfill dam, and the slope protection and protection method comprises a first horizontal drainage body arranged from a preset upstream and downstream enrockment area boundary to the surface of a downstream dam slope; the second horizontal drainage body is arranged from the preset upstream and downstream rockfill area boundary to the surface of the downstream dam slope, and the third horizontal drainage body is arranged from the preset upstream and downstream rockfill area boundary to the surface of the downstream dam slope; the boundary of the upstream and downstream rockfill areas is an inclined line from the slope top to the slope bottom; the first horizontal drainage body, the second horizontal drainage body and the third horizontal drainage body are arranged at the preset height positions correspondingly, and the seepage loads in different dam height ranges and the seepage characteristics of downstream soft rock damming materials are fully considered through the design of the three-layer horizontal drainage body structure; a multi-layer smooth drainage channel can be provided for upstream reservoir water leakage and dam face infiltration rainwater at the same time, and the overall stability of a downstream dam slope is effectively guaranteed.

The utility model relates to the field of motor home apron boards, and discloses a motor home box body spliced through skirts, which comprises a body component and an improved component, and the body component comprises a vehicle body and tires. The inner apron board is clamped on the vehicle body under the action of the clamping mechanism, the clamping mechanism limits that the inner apron board cannot fall off from the upper position and the lower position but can fall off from the front face, then under the action of the connecting mechanism, the reinforcing plate and the inner apron board are connected, the reinforcing plate and the inner apron board form a rectangular frame surrounding the periphery of the vehicle body, and under the condition, the reinforcing plate and the inner apron board can be connected through the connecting mechanism. The reinforcing plate limits the inner apron board not to fall off from the front side, and the inner apron board carries out connection limitation on the reinforcing plate, so that the reinforcing plate and the inner apron board cannot fall off on a vehicle body, and when the apron boards need to be disassembled, the reinforcing plate, the inner apron board and the outer apron board can be taken down together only by loosening the connecting mechanism, the operation is convenient and fast, and the cost is reduced. Due to the design of the apron board, the protective effect can be kept, and troubles cannot be caused when the apron board is taken down.

The invention provides a packaging device and method for packaging a plurality of microchannel plates. The packaging device comprises a base and an upper cover, wherein the base is used for bearing the microchannel plates, and the upper cover is used for pressing the base and sealing a microchannel plate containing area. The base is provided with a plurality of circular grooves which are used for placing the micro-channel plate and supporting the bottom of the micro-channel plate. A plurality of lug grooves are formed in the circular grooves in the circumferential direction and communicate with the circular grooves, and the lug grooves of any two adjacent circular grooves in the transverse direction and / or the longitudinal direction communicate with each other to form a pressing and embedding space when the upper cover is closed. The upper cover is provided with an embedding part which is pressed into the pressing embedding space to press the micro-channel plate. According to the packaging box, the damping effect during impact and vibration in the packaging and transporting process is guaranteed through double complementary type embedded matching, shaking is reduced, and meanwhile the situation that dust in the environment and pollutants generated in the packaging box enter the micro-channel plate containing area, the micro-channel plate is polluted, and consequently the surface cleanliness is reduced is effectively avoided.

The utility model relates to the technical field of municipal construction accessories discloses a protection device for pipeline construction anti -collision, including longitudinal steel pipe, circular arc steel pipe, multidirectional pulley, anti -collision steel strip and oblique steel pipe, the longitudinal steel pipe has many, many longitudinal steel pipes are parallel to the length direction of pipeline, at least two longitudinal steel pipes are opposite other and are located downside, and its bottom is provided with multidirectional pulley, at least one longitudinal steel pipe is opposite other and is located upside, and it connects two longitudinal steel pipes with pulley through oblique steel pipe, two longitudinal steel pipes with pulley are connected through circular arc steel pipe between, the longitudinal steel pipe or oblique steel pipe stretches out anti -collision steel strip outward, the utility model aims at providing more effective, reliable and economic and practical anti -collision solution for pipeline construction.

This utility model discloses a chassis protection frame in the field of personal mobility scooter technology, including a chassis, a mounting frame on the underside of the chassis, a mounting groove on the outer side of the mounting frame, multiple sets of protective frames inside the mounting groove, two sets of positioning blocks fixedly mounted on the upper side of each set of protective frames, and two positioning grooves for mating the positioning blocks on the upper side of the mounting groove. The positioning blocks are movably inserted into the positioning grooves. Mounting holes are provided through the outer sides of the mounting frame and positioning blocks, and fixing rods are movably inserted into the inner side of the mounting holes. The outer sides of the fixing rods, located on both sides of the mounting frame, are provided with threaded surfaces, and locking nuts are threaded onto the outer sides of both sets of threaded surfaces. This utility model, through its simple installation structure, facilitates the assembly and disassembly of the protective frame, improves the ease of installation and disassembly, reduces workload, and increases work efficiency. Furthermore, it allows for easy replacement of damaged parts, effectively reducing maintenance costs and avoiding resource waste. Its practical effect is excellent and worthy of promotion and use in the current market.

The utility model discloses a Lora wireless transmission gateway, and relates to the gateway equipment technology field, the Lora wireless transmission gateway comprises a Lora gateway device and a signal rod, the surface of the Lora gateway device is provided with an external groove, the inner wall of the external groove is rotatably provided with a positioning support plate, the surface of the positioning support plate is fixedly provided with a butt joint plate, the inner side of the positioning support plate is rotatably provided with a built-in guide ring, and the built-in guide ring is connected with the signal rod. According to the Lora wireless transmission gateway, the positioning supporting rod is pushed to be matched with the adaptive built-in guide groove through the elastic performance of the compressed second spring, and then an operator controls the positioning stud to be in threaded adjustment on the inner side of the positioning supporting plate to abut against the positioning supporting rod; according to the Lora gateway equipment, the Lora gateway equipment can be conveniently positioned after being adjusted by a certain angle, so that the Lora gateway equipment has multiple effects of protection and adjustment during use, the overall protection performance of the Lora gateway equipment during use is improved, and meanwhile, a good heat dissipation effect can be ensured through the fact that the Lora gateway equipment is suspended from the ground.

The embodiment of the present specification provides a kind of vehicle driver frontal protection air bag device, including first air bag and second air bag independent of each other, first air bag is arranged in vehicle steering wheel, second air bag is arranged in the corresponding vehicle roof area of instrument panel or driving position, when vehicle is impacted to reach the set threshold value, first air bag and / or second air bag are unfolded, and extend to the space between steering wheel and driver, wherein, when first air bag and second air bag are unfolded simultaneously, first air bag and second air bag are mutually supported and present profiling clamping state.By setting first air bag and second air bag independent of each other, the first air bag of protection driver thoracic cavity part is arranged in steering wheel, the second air bag of protection driver head and neck is arranged in instrument panel or vehicle roof area, can reduce the space occupied by steering wheel, according to the situation that vehicle is impacted, first air bag and / or second air bag are unfolded, can realize the optimal protection scheme to driver.

The utility model discloses a steel structure car shed which comprises supporting frames and a shed roof, the number of the supporting frames is multiple, the supporting frames are arranged in parallel in two rows, installation grooves are formed in the middles of the upper ends of the supporting frames, electric push rods are installed at the bottom ends of the installation grooves, the output ends of the electric push rods extend out of the installation grooves, and first connecting plates are installed at the upper ends of the electric push rods. Second connecting plates are installed at the positions, above the first connecting plates, of the lower end of the greenhouse roof, a light intensity detector is installed in the middle of the upper end of the greenhouse roof, an equipment box is installed on one supporting frame, a controller and a power source assembly are installed in the equipment box, and shielding assemblies are installed between the front ends and the outer ends of the two supporting frames on the outermost side. Sunlight intensity is detected through the light intensity detector and converted into a current signal to be transmitted to the controller, meanwhile, the controller controls the electric push rod on one side to extend and controls the electric push rod on the other side to shorten, angle adjustment of the shed roof is achieved, and the shed roof can keep shielding sunlight to the maximum degree conveniently.

The adjustable slag collecting device is modular in design and mainly consists of a slag collecting device and a support assembly. The slag collecting device includes a slag collecting barrel and a fixed support. The collecting barrel is made of high-temperature resistant metal material. The support assembly includes a movable support, a bolt and a fixed bolt. The support assembly can be quickly positioned and adjusted in height according to the use requirements, has the characteristics of quick installation, multi-stage adjustment and safety protection, and is suitable for vertical welding operations in building steel structures, power facilities and industrial pipeline construction. Through the synergistic effect of the mechanical adjusting support and the yellow sand buffer layer, the device effectively solves the problems of insufficient adaptability, poor fireproof performance and secondary spatter of welding slag in the traditional protection mode in the dynamic welding environment, can significantly reduce the equipment damage and fire risk caused by the falling of high-temperature welding slag, and improves the safety and efficiency of welding operation.

The invention relates to the technical field of cross-linked polyethylene insulated cables, and provides a high-strength tensile-resistant mining cross-linked polyethylene insulated cable which comprises a conductor, a cross-linked polyethylene insulating layer, an inner sheath, an armor layer and an outer sheath, the cross-linked polyethylene insulating layer wraps the conductor, the armor layer is arranged outside the inner sheath, and the outer sheath is arranged outside the inner sheath. The outer sheath wraps the outer portion of the armor layer, the cable further comprises a plurality of tensile protection sleeves and tensile connecting pieces, the tensile protection sleeves are arranged outside the outer sheath and provide external protection for the cable, meanwhile, the tensile protection sleeves are provided with mechanical interlocking structures, the tensile connecting pieces are used for connecting every two adjacent tensile protection sleeves, and the tensile protection sleeves are arranged outside the outer sheath and provide external protection for the cable. And meanwhile, the tensile connecting piece located at the edge of the cable is connected with a reinforcing piece used for being connected with equipment connected with the cable. According to the technical scheme, the problem that a traditional mining cable in the prior art is poor in tensile property and protective property when facing a complex mine environment is solved.

The utility model relates to a push -and -pull window motor. It has solved the existing push -and -pull window motor complex structure, occupies space big etc. technical problem. Including the motor casing of inner chamber, the motor cavity and the power output cavity of axial distribution setting have in the motor casing, install motor drive subassembly in the motor cavity, the screw rod body that is connected with motor drive subassembly is axially rotatory and is provided with in the power output cavity, the screw rod nut seat that is connected with screw rod body screw thread is set up on the screw rod body, the motor casing one side has the sliding platform that is located power output cavity outside and along the axial extension of motor casing, the motor power output block is axially movably established on the sliding platform, and the screw rod nut seat is connected with the motor power output block through the connecting structure of the side of sliding platform is penetrated. Advantages lie in: the motor cavity and the power output cavity are separated and set through the partition seat, and can improve compactness of structure, reduce the occupied space through the transmission connection of motor drive subassembly and screw rod body, can be applicable to the scene of limited space.

Vehicle lamp combinations are arranged on the front portion and the rear portion of a vehicle body respectively, a control system and a cab are arranged on the vehicle body, a center console and a seat are arranged in the cab, a steering device is arranged on the center console, the control system is connected with an electric walking system and the vehicle lamp combinations, and a front windshield is arranged on the front portion of the cab. Doors are hinged to two sides of the cab; folding door curtains are arranged on door frames of the doors; a warning display device is arranged at the upper end of the rear portion of the vehicle body, a distribution knapsack is detachably installed on the rear portion of the vehicle body, and a bag locking device and a monitoring device are arranged in the distribution knapsack. The black box is arranged to record information in real time, supervision is enhanced, and emergency rescue is facilitated; and the seat is changed and adjusted to be suitable for different riding combinations, and a child is protected. According to the invention, the comfort of a rider is met, traffic accidents are reduced, the safety is improved, and distribution business disputes are reduced while bearing and storage functions are achieved.

The present application relates to the technical field of ceramic coating, especially to a micro-nano structure ceramic coating and its application on the reaction furnace of zircon sand boiling chlorination method, aiming at solving the problems of weak bonding force between the existing protective coating and the substrate, poor thermal shock resistance and easy failure in long-term high-temperature chlorine environment; the present application constructs a nano-wire reinforced micro-nano structure transition layer on the surface of porous corundum brick substrate in situ, and sequentially constructs a lanthanum phosphate bonding layer and a yttrium stabilized zirconium oxide barrier layer on the transition layer; the design utilizes the mechanical anchoring effect of micro-nano structure and the strong chemical bonding ability of lanthanum phosphate to realize the firm combination of the coating and the substrate; the dense characteristics of the zirconium oxide layer provide ultimate protection; the method significantly improves the overall anti-peeling ability and long-term corrosion resistance of the coating system.

The invention relates to the technical field of side slope treatment, and discloses an anti-collision wall structure for side slope rockfall protection. A foundation pit is excavated at a high side slope toe, an anti-collision wall body is installed in a building area of the foundation pit, and a buffer area is additionally arranged, so that rockfall preferentially passes through the buffer area for buffering when falling to the high side slope toe; kinetic energy of fallen rocks is absorbed and dissipated, impact force of the fallen rocks is reduced, the risk that the fallen rocks bounce over the anti-collision wall body after falling to the ground is reduced, and the number of the fallen rocks bouncing over the anti-collision wall body after falling to the ground is reduced. Meanwhile, after falling rocks are buffered, the impact force is small when the falling rocks collide with the anti-collision wall body, the falling rocks are effectively prevented from colliding with factory buildings, a solid barrier is provided for the factory buildings, and therefore the falling rocks are effectively prevented from colliding with the factory buildings, and the safety of personnel and equipment in a field is protected; and direct economic losses such as equipment damage, production and work halt, casualties and the like caused by rockfall disasters are reduced.

An electric hoist with a fall-prevention structure effectively solves the problem of the risk of electric hoist falling. It includes a track, an electric trolley, and a hoist body. The hoist body is equipped with protective devices located on the front and rear sides of the electric trolley. Each protective device includes a frame, which is fixedly connected to the hoist body. A rotating shaft is mounted on the frame, and a first screw and a second screw with opposite thread directions are coaxially fixed to the rotating shaft. The first screw is threadedly connected to a first nut, and a first frame is fixed to the upper end of the first nut. A first roller in contact with the track is rotatably connected to the lower end of a first positioning plate. Multiple third screws are fixed to the lower end of the first frame, inserting vertically into the interior of the first frame. A second screw is threadedly connected to a second nut, and a second frame is fixed to the upper end of the second nut. A second roller in contact with the track is rotatably connected to the lower end of a second positioning plate. Multiple fourth screws are fixed to the lower end of the second frame, inserting vertically into the interior of the second frame.

The application belongs to the field of natural gas pipeline, and particularly relates to an aboveground pipeline exhaust protection device, which is used for being installed on a gas pipeline and covering exhaust pipes on both sides of a main valve, and comprises a protection device, a switching device and a mounting device. Both sides of the main valve are fixedly connected with connecting frames. The exhaust pipes are communicated with the gas pipeline and are fixedly connected with the connecting frames at sides. Both sides of the protection device are fixedly connected with the gas pipeline through fastening devices. The switching device is rotatably connected with the connecting frames and is arranged at the upper part of the protection device. Switchable connecting heads are arranged on the switching device. The mounting device is connected with the top of the protection device and is located directly above the exhaust pipes. The mounting device can detachably connect different connecting heads on the switching device with the top of the exhaust pipes according to requirements. The device can protect the exhaust pipes on the gas pipeline and switch the connecting heads according to different working conditions.

The planer type milling machine protection structure with the locking structure comprises a base, an installation frame is installed at the top end of the base, and sliding grooves are evenly formed in the installation frame. According to the planer type milling machine, the whole transparent protective cover can move up and down conveniently through the electric telescopic rod, so that the planer type milling machine body is protected in all directions, the situation that chippings generated during production and machining of a milling cutter splash to hurt workers is avoided, the safety of a production workshop is also improved, and the production efficiency is improved. The whole upper body is also convenient for a worker to place a machined part, limiting connection of the transparent protective cover and the base is achieved through a spring and a limiting block, rotation of an internal thread connecting cover is achieved through a rotating groove and a rotating block, and connection of the limiting groove and the limiting block is fixed through cooperation of a threaded connecting groove and the internal thread connecting cover; the effect of connecting and locking the transparent protective cover and the base is achieved.

The utility model discloses a high-elastic wear-resistant three-proofing fabric, and relates to the technical field of fabrics. According to the technical scheme, the three-proofing film is characterized by comprising an inner layer and an outer layer which are fixedly connected with each other, the side, close to the inner layer, of the outer layer is fixedly connected with a three-proofing film, the side, close to the inner layer, of the outer layer is concaved inwards to form a plurality of containing grooves, and through grooves communicated with the containing grooves are formed in the outer layer; the side, close to the outer layer, of the inner layer is fixedly connected with a wear-resisting part which penetrates out of the through groove and is higher than the outer layer, the width of the wear-resisting part is equal to the diameter of the through groove, and the inner layer is fixedly connected with an adsorption strip located between the inner wall of the containing groove and the wear-resisting part. The polyamide fibers have good structural strength, and the wear resistance and durability of the fabric are guaranteed through the characteristics of the polyamide fibers.

The foundation pit protective fence for municipal engineering construction comprises a base, side columns, an upper cross beam, a lower cross beam, vertical handrails, lower check blocks and upper baffles, the side columns are detachably installed on the base, installation grooves are formed in the side columns, the upper cross beam and the lower cross beam are detachably installed in the installation grooves, transverse insertion holes are formed in the upper ends and the lower ends of the vertical handrails, and the lower check blocks are inserted into the transverse insertion holes. Locking knobs are arranged at the tops and the bottoms of the vertical handrails, connecting bases are arranged on the side columns, tooth-shaped convex columns are arranged on the connecting bases, connecting pieces are installed on the tooth-shaped convex columns, clamping groove sleeves are arranged on the connecting pieces, the clamping groove sleeves and the tooth-shaped convex columns are installed and matched in a relative limiting mode, and turncaps for locking the clamping groove sleeves are installed on the tooth-shaped convex columns in a threaded mode; a rear inclined supporting piece is detachably arranged on the rear portion of the side column, a fixing nail is arranged on the rear inclined supporting piece, the lower check block is detachably arranged between the bases, and the upper baffle is detachably arranged on the upper cross beam. And the assembled and disassembled functions are achieved, carrying, storage and transportation are convenient, the angle is adjusted, and the ground stability is good.

The invention discloses a two-way anti-leakage, extended-life, recyclable tail shaft front sealing device, which relates to the technical field of tail shafts. The two-way anti-leakage, extended-life, recyclable tail shaft front sealing device comprises a first sealing mechanism, a second sealing mechanism is arranged on the inner side of the first sealing mechanism, a protective ring is fixedly connected to the surface of the first sealing mechanism, a gas filling valve is fixedly connected to the surface of the first sealing mechanism, the gas filling valve is located on the inner side of the protective ring, and a docking ring is slidably connected to the inner side of the first sealing mechanism. The two-way anti-leakage, extended-life, recyclable tail shaft front sealing device ensures the ease of replacing rubber pads of the device, and ensures that when the rubber pad is corroded by seawater after being used for a period of time and fails to achieve good anti-leakage performance, the docking ring can be easily separated from the first sealing mechanism and the rubber pad can be replaced, thereby improving the ease of replacing the rubber pad between the first sealing mechanism and the second sealing mechanism.

The invention provides a hot-melt mounted protector and a hot-melt composite integrated protector wearing article, the wearing article comprises a protective layer and a base material layer, an elastic impermeable layer is arranged on the A surface of the base material layer, a hot-melt adhesive layer is arranged on the B surface of the base material layer, and the hot-melt adhesive layer is arranged on the B surface of the base material layer. The hot melt adhesive layer permeates into the base material layer which takes the elastic impermeable layer as a back sealing layer; the protective layer is arranged on the A surface elastic sealing layer of the hot-melting mounting composite carrier which takes the B surface as a hot-melting functional layer, the A surface as a sealing layer and the base material layer as a main body. The protective clothing and the clothing can be connected and installed through hot melting, the protective clothing and the fabric are completely attached to each other without gaps, deviation and displacement between the protective clothing and the clothing are avoided, the hot melting adhesive layer and the base material layer are firmly attached, deformation and blistering are avoided, the elastic impermeable layer is not affected, the reliability of hot melting connection is ensured, and the protective clothing is more comfortable to wear. Meanwhile, the protection performance of the protection layer is also ensured.

The invention belongs to the technical field of electric energy meters, and particularly relates to a high-strength protection type electric energy meter which is internally provided with a main box body, a feeding cavity with a forward opening is formed in the main box body, a rotating shaft is rotationally arranged between the left wall and the right wall of the feeding cavity, an overturning cover is fixedly arranged on the outer circle face of the rotating shaft, and two sets of track racks which are in bilateral symmetry are fixedly arranged on the lower end face of the overturning cover. The guide cavity connected with the outside is arranged in the rail rack, the display screen, the overturning cover, the filter plate and the main box body are arranged in a surrounding sealing mode, and therefore it is ensured that an internal processing panel and the display screen are thoroughly protected, and the high-strength protection performance of the electric energy meter is ensured; according to the electric energy meter cooling device, external air is driven to enter the cooling cavity through the filter plate, the low-temperature duration is prolonged, then the air flows out through the exhaust hole, the problems of efficient filtering and short time of traditional single cooling are solved, and it is ensured that the electric energy meter is always kept in the optimal state.