134results about How to "Avoid rushing out" patented technology

The invention discloses a comprehensive safety protection system for the automatic driving of a coke oven electric locomotive, which relates to the technical field of automatic control of coke oven production vehicles in the coking industry. The comprehensive safety protection system for the automatic driving of coke oven electric locomotive comprises a first vehicle-mounted PLC controller, wherein the first vehicle-mounted PLC controller is separately connected with a automatic power failure brake protection subsystem, a brake detection fault subsystem, a laser scanning anti-collision safetyprotection subsystem, a forced downshift detection protection subsystem, a coke tank rotation detection fault subsystem, a traveling variable-frequency detection fault subsystem, a system communication detection fault subsystem, an address detection protection subsystem and a manual unconditional switching and emergency stop protection subsystem. The comprehensive safety protection system for theautomatic driving of the coke oven electric locomotive can solve the problems of active derailment or collision accidents caused by out-of-control running of the electric locomotive in the prior art,red coke falling or coke tank lifting and decoupling accidents caused by abnormal rotating control of the coke tank of the electric locomotive, and passive collision safety accidents caused by intrusion of people and objects during the automatic running of the electric locomotive without effective protection.

The invention relates to a compensating device for an elevator. The compensating device comprises a guiding device, a fixing device, a stroke switch frame, a limit bow striking frame, a clump weight and a safety device, wherein the safety device comprises safety tongs, a lifting rod, a linkage device, a pull rod and a positioning plate; two safety tongs are fixedly connected at the two ends of the guiding device respectively; the lower end of each safety tongs is fixedly connected with the upper end of the lifting rod; the lower end of the lifting rod is connected with the linkage device; the linkage device penetrates into a reserved hole of the guiding device and can radially rotate; the upper end of the pull rod is connected with the linkage device, and the lower end of the pull rod penetrates into the hole of the positioning plate; and the positioning plate is fixed on the fixing device. In the technical scheme of the invention, when the guiding device moves upwards, the pull rod can move upwards with the guiding device, and after the pull rod moves for a certain distance, the safety tongs can act, so that the guiding device brakes on the fixing device timely and is prevented from rushing out of the fixing device.

The invention relates to a system for laying underground cables or underground lines in the ground near the surface, in a borehole (102) along a laying route (101) between a start point (100) and a target point (110), comprising a boring device (10) comprising an advancing head (12) for creating the borehole (102), a drilling rod (11) and / or a casing (14), wherein the diameter of the advancing head (12) is greater than the diameter of the casing (14) or of the drilling rod (11), so that an annular space (121) is formed between the borehole wall (102) and the casing (14) or the drilling rod (11) and the annular space (121) is provided with lubrication and wherein the advancing head (12) relates to a displacement drilling head (15, 16, 41) or a drilling head system (18) comprising a drillingtool (19) and a drilling tool drive (22) for loosening the ground.

The embodiment of the invention provides a bank account expense early-reminding device and a bank account expense early-reminding method. The device comprises an expense reminding information storage unit, an early reminding deduction generating unit, an early reminding balance generating unit, an early reminding instruction generating unit and an early reminding information sending unit, wherein the expense reminding information storage unit is used for storing expense reminding information; the early reminding deduction generating unit is used for reading the expense reminding information and calculating estimated deduction line sum under the same bank account, from an early reminding time to a deduction time and corresponding to each deduction type according to the expense reminding information so as to generate early reminding deduction; the early reminding balance generating unit is used for extracting the available balance corresponding to the same bank account from the expense reminding information; the early reminding instruction generating unit is used for judging whether the early reminding deduction is greater than the available balance, and if so, generating early reminding instructions containing user communication numbers and early reminding information; and the early reminding information sending unit is used for sending the early reminding information to a communication terminal corresponding to the user communication numbers according to the early reminding instructions. The device and the method solve the expense early-reminding problem of bank deduction accounts in a bank deposit payment system.

The invention relates to a slagging method for vertical retort magnesium smelting and a vertical retort magnesium smelting device. The method comprises the following steps: opening an upper cover, taking out accessories in a retort, and then closing the upper cover; opening a lower cover, laying a slagging device below a slag hole, adjusting an upward push cock of a rotary push rod of the slagging device, and opening the slag hole to remove slag charge; simultaneously driving a center tube with a blade by the cock to rotate or lift in a reduction retort to clean the slag charge; and adjustingthe slagging device after the slagging is finished, lowering down the rotary push rod, ensuring that the cock and the center tube are repositioned with the returning of the rotary push rod and finally the rotary push rod is separated from the cock, and then removing away the slagging device. The blade is installed on the center tube of the vertical retort magnesium smelting device, the cock is fixedly connected with the bottom of the center tube, the movable slagging device is arranged below the cock, the rotary push rod of the slagging device is matched and connected with the cock during slagging, and the rotary push rod is lowered down after slagging and automatically separated from the cock. The method has the advantages that the dust in a production field is reduced, the slag charge can be automatically cleaned up, and the slagging process can be controlled.

The invention discloses a method for reducing lead and protecting rhenium for high-lead rhenium and molybdenum containing concentrate and belongs to the field of rare metal smelting. The method comprises: dissolving a calcium chloride solid in solution of hydrochloric acid, and adding high-lead rhenium and molybdenum containing concentrate powder under a heating condition; and stirring, keeping the temperature, washing the obtained solid and liquid mixture, and drying to obtain a pretreated molybdenum concentrate sample. The method has low cost and high process repeatability. The loss of molybdenum and rhenium in the molybdenum concentrate pretreated by the method is small (the molybdenum content in waste solution is less than or equal to 0.01g / L, and the rhenium content in the waste solution is less than or equal to 0.0001g / L), the molybdenum and rhenium are enriched to a certain degree; the percentage content of other alkali metals (such as Cu and Fe) is reduced to different extents; particularly the percentage content of the pretreated lead is less than or equal to 0.03 percent; and thus, the quality of the molybdenum concentrate is improved obviously.

The invention discloses a deep hole presplitting water coupling blasting explosive charging structure and a construction method. The deep hole presplitting water coupling blasting explosive charging structure comprises a blocking section and an explosive charging section. The explosive charging section is formed by connecting a plurality of PVC explosive charging pipes. Explosives are bundled in the pipes in a staggered mode. Two bundles of explosives at the explosive charging bottom end are inserted into electric detonators correspondingly. A bundle of explosive is inserted into one electricdetonator at the explosive charging top end. The three electric detonators are connected in series. A flow limitation blocking device is arranged at the blocking section. The blocking device comprisesa flow limitation water pipe, an expansion waterstop strip, waterproof tin foil paper and a taper sleeve. The flow limitation water pipe is an L-shaped PVC slim pipe. When a hole outer port of the flow limitation water pipe faces downwards, the lower half portion of the expansion waterstop strip is wrapped by the waterproof tin foil paper. The taper sleeve is arranged on the outlet side of the expansion waterstop strip. During construction, during explosive charging, the PVC explosive charging pipes are connected and extended into a blast hole. The blocking method is adjusted according to a water-bearing stratum and a non-water-bearing stratum. The explosive charging structure is optimized by the aid of water pressure blasting advantages and is suitable for solving the blocking problem ofthe water-bearing stratum.

The invention provides a liquid discharging structure and a closed container with the same. The liquid discharging structure comprises a liquid outlet arranged on the closed container, and a partition board arranged inside the liquid outlet to divide the liquid outlet into an air inlet channel and a liquid discharging channel; the part, located inside an inner cavity of the closed cavity, of the partition board is fixedly provided with a baffle used for preventing liquid from directly impacting on the air inlet channel. During using, when the closed container with the liquid discharging structure pours liquid outwards, liquid flows outwards from the liquid discharging channel, external airflow stably and continuously flows into the closed container from the air inlet channel and a gas runner to balance the inner and outer pressure difference, so that the flowing interface of liquid flowing beams is stabilized conveniently, fluctuation and splashing of the liquid flowing beams are reduced, and the pouring speed is increased.

The invention discloses a high-quality fine rice efficient polishing device. The high-quality fine rice efficient polishing device comprises a cylinder body, a feeding hopper, a bran and dust screen cylinder body, a polishing bottom screen, a broken rice screen conical cylinder and a rice collecting bin which is fixed to the inside of the cylinder body, the bran and dust screen cylinder body is fixedly arranged at the upper end inside the cylinder body, annular dust cleaning brushes are distributed at the middle lower end of the inner wall of the bran and dust screen cylinder body, a bran anddust cavity is arranged between the bran and dust screen cylinder body and the inner wall of the cylinder body, an air inlet hood and a bran suction hood which are communicated with the bran and dustcavity are arranged on outer walls of the two sides of the cylinder body respectively, the polishing bottom screen is fixedly arranged at the bottom of the bran and dust screen cylinder body in a sealing mode, a polishing chamber enclosed by the bran and dust screen cylinder body and the polishing bottom screen is filled with polishing pills, and the broken rice screen conical cylinder is arrangedinside the cylinder body below the bran and dust screen cylinder body. The high-quality fine rice efficient polishing device is reasonable in structural design, simple in overall design structure, good in work safety performance and good in polishing effect, the generation of broken rice is reduced, and the separating effect and separating efficiency of the broken rice and rice are drastically improved at the same time.

The invention a static blasting anti-punching device and belongs to the technical field of engineering blasting. The static blasting anti-punching device comprises a connecting rod, an upper baffle and a lower baffle. The upper baffle sleeves the outer wall of the upper portion of the connecting rod and is detachably connected with the connecting rod and used for plugging a drilling opening. The lower baffle sleeves the outer wall of the bottom of the connecting rod. An anti-punching containing cavity for containing a static explosive is defined by the upper baffle, the side wall of a drilledhole and the lower baffle. A first fixing part for fixing the upper baffle is arranged on the connecting rod. The invention further provides a static blasting method. The static blasting anti-punchingdevice and the blasting method aim at solving the technical problem that a current market is in lack of a static blasting anti-punching device or blasting method which prevents punching, and is convenient to operate and good in blasting effect.

The invention relates to a switch device. A first compartment comprises a first air inlet and an air outlet; a venting device is mounted at the air outlet; a second compartment comprises a second air inlet; and a first interface is arranged between the first compartment and the second compartment. When the venting device is in operation, air enters the first compartment and the second compartment from the first air inlet and the second air inlet respectively; the air entering the second compartment enters the first compartment through the first interface; and the air entering the first compartment is discharged out of the switch device from the air outlet. At least two of compartments such as a handcart compartment, a bus compartment and a cable compartment and the like in the switch device are subjected to forced ventilation, the corresponding compartments are provided with the air inlets, and the venting device is arranged at the air outlet, so that the cooling capability of the switch device is greatly improved.

The invention discloses a directional hydraulic centralized exploding device for improving the gas permeability of a coal seam, and relates to the technical field of coal seam permeability improvement. The directional hydraulic centralized exploding device for improving the gas permeability of the coal seam comprises a directional exploding tube, wherein the two ends of the directional exploding tube are sealed by cover plates; a plurality of energy release holes are formed in the outer circumferential surface of the directional exploding tube at intervals; the energy release holes are communicated with the inner cavity of the directional exploding tube; the inner cavity of the directional exploding tube is filled with explosive rolls and detonators; the outer circumferential surface of the directional exploding tube is coated with a high-pressure plastic thin film; the energy release holes are covered by the high-pressure plastic thin film; the top end of the directional exploding tube is connected with a first plugging assembly for plugging a blast hole during explosion so as to prevent explosion fragments from being upwardly ejected along the blast hole. Through coupling of explosion gas and water which is left in the blast hole and the coal seam after a hydraulic fracturing operation, the directional hydraulic centralized exploding device can greatly improve the development degree of a fracture in the coal seam; in addition, the blast hole of the directional hydraulic centralized exploding device is not required to be filled with a yellow clay roll before explosion, so that the directional hydraulic centralized exploding device is very convenient to operate.

The invention discloses a pile frame lifting operation mechanism which comprises a hoisting machine group, a vertical column, a top pulley yoke, an operating suspension cage, a hoisting machine over-hoisting limiter, a hoisting machine over-releasing limiter, a wire rope, stop dogs and a speed control system. The vertical column is provided with a pair of side guide rails and rib plates distributed at equal intervals; the operating suspension cage is arranged on the side guide rails; a suspension cage body is hinged with a frame; an angling cylinder is respectively connected with the suspension cage body and the frame; the hoisting machine over-hoisting limiter and the hoisting machine over-releasing limiter are respectively installed in proper positions of lower parts of the top pulley yoke and the vertical column; the wire rope is connected with a hoisting frame; the hoisting frame adopts a rod piece, is installed at the upper part of the frame through a hinge pin and can rotate around the hinge pin; a spring connected with the frame is arranged at the lower end part of the hoisting frame; a throttle valve is arranged in the speed control system; and the stop dogs are symmetrically distributed in proper positions at lower parts of the side guide rails. The pile frame lifting operation mechanism ensures that the operating suspension cage is lifted and rotates along the side guide rails of the vertical column, is convenient to operate, stable and reliable, is convenient to mount and dismount, and guarantees the safety of operating personnel.

The invention discloses a computer placing rack capable of adjusting height for a senior high school student. The computer placing rack comprises support legs, the number of the support legs is arranged to be two, each support leg is internally provided with an adjusting device, the inner cavity of the adjusting device is fixedly connected to a first transverse plate and a second transverse plate, the first transverse plate is located at the bottom of the second transverse plate, the length of the first transverse plate is three times larger than that of the second transverse plate, the surface of the first transverse plate is movably connected to a first pulley, the surface of the second transverse plate is movably connected to a second pulley, the diameters of the first pulley and the second pulley are equal, and the surface of the first transverse plate is in drive joint with the surface of the second transverse plate through a first conveyor belt. The computer placing rack capable of adjusting height for the senior high school student achieves the effect of being conducive to adjusting height, the senior high school student can adjust height according to his / her own requirement when the computer placing rack is in use, the computer placing rack capable of adjusting height for the senior high school student is compact in structure, reasonable in design, high in practicability and convenient to apply and popularize.

The invention discloses a cooking utensil. The cooking utensil comprises a cooking cavity, a door body, a suction device and a controller; the cooking cavity is internally provided with a cooking cavity, the door body is used for closing or opening the cooking cavity, the suction device is used for sucking gas in the cooking cavity, and the controller is configured to control the suction device tosuck the gas in the cooking cavity after cooking is completed. The suction device comprises an air duct outlet formed in an outer shell of the cooking utensil, a cavity top opening formed in the topwall of the cooking cavity so as to communicate the cooking cavity with the top mounting cavity, a linkage valve used for opening or closing the cavity top opening, and a cooling fan arranged in the top mounting cavity. The cooling fan is used for sucking gas in the cooking cavity through the opening in the top of the cavity and exhausting the gas through the air duct outlet. The cooking utensil is reasonable in structure and safe to operate, high-temperature hot air in the cooking cavity can be prevented from scalding a user when the door body is opened, and the user experience is good.

The invention provides a safety prompting method based on an instrument and an automobile instrument. The method includes the steps that in a get-on scene, current gear information is inquired through the instrument, and if the current gear is not a neutral gear, an alarm prompt is sent to a user through the instrument; and in a flameout scene or in a scene that a driver is away from an automobile, if the automobile is parked on a slope and a hand brake is not pulled, the alarm prompt is sent to the user through the instrument. Therefore, potential safety hazards caused by improper operation of the user are reduced.

The invention discloses a silk cleaning wastewater purification device for textile production, and relates to the technical field of textile production. The problems that residual silk easily causes equipment blockage in the treatment process, and the wastewater treatment efficiency is affected are solved. The device specifically comprises a base, a shell is fixedly installed at the bottom of thebase, a cover body is fixedly installed at the top of the shell, a liquid inlet pipe and a liquid outlet pipe are fixedly installed at the two ends of the shell respectively, two driving motors are fixedly installed on the side face of the shell, and rotating cylinders are installed between output shafts of the driving motors and the inner wall of the shell through sealing bearings. The filter screen box in which solid impurities and silk fibers are filtered can be dismounted from and mounted on the connecting frame in a pluggable manner; in the treatment process, the sealing plate can be opened, the filter screen box is drawn out, silk fibers in the filter screen box are recycled, the convenience of cleaning filter residues in the device is improved, the labor amount of workers is reduced, and the wastewater purification treatment efficiency is improved.

The invention provides a full-automation uncoiling sheet material corollary equipment which comprises a uncoiling device, a material feeding device, a guarding device and a coiling device. The full-automation sheet material uncoiling corollary equipment has the advantages that the material feeding device is arranged, material feeding of an uncoiler is stable, so that the problem that sheet material droops in the process of uncoiling is solved; the full-automation coiling device is arranged, so that the problem in the prior art that the degree of automation of a coiling device is low is solved; the guarding device with simple structure and convenient usage is arranged, so that the stability of the uncoiling process of the sheet material is improved.

The invention discloses an under-pressure drill tripping method used under a top drive drilling machine and belongs to the technical field of an under-pressure drill tripping tool. The method comprises the following steps that a hydraulic slip is arranged under a drill stand, and in addition, a well mouth requiring the under-pressure drill tripping implementation is subjected to pressure measurement; when the pressure of the tested well mouth is smaller than or equal to 5Mpa, a top drive connecting drill tool is adopted, and when a top drive is adopted for implementing the under-pressure drill tripping, the number of the upwards lifted or downwards placed drill tool(s) is 1 to 3; when the number of the upwards lifted or downwards placed drill tool(s) is 1 to 3, the hydraulic slip arranged under the drill stand is started, the drill tools are clamped by the hydraulic slip, and the clamping force of the hydraulic slip is greater than or equal to 3T; the top drive is started, when the drill tools are upwards lifted, the drill tools clamped in the well mouth are separated, and in addition, the dismounted drill tools are placed on a pipe rack; and when the drill tools are downwards placed, the connected drill tools are conveyed into a well by the downward pressure of the top drive. The method solves the difficult problem that a conventional under-pressure drill tripping device under the top drive drilling machine cannot be mounted or operated on the drill stand.

The invention relates to detection equipment and in particular discloses dust concentration detection equipment. The dust concentration detection equipment comprises a compression part and a detectionpart, wherein the compression part comprises a barrel body, and a second piston, a separation plate and a first piston which are arranged in the barrel body from top to bottom; the separation plate is fixed to the barrel body; the two pistons are connected through a connecting rod; the first piston is connected with the connecting rod through a unidirectional bearing; the second piston is fixed to the connecting rod; a spiral flange and a spiral groove, which are mutually matched, are arranged on the connecting rod and the separation plate; the barrel body is made of a transparent material; adetection region is located below the first piston; a vacuum region is formed between the first piston and the separation plate; a water storage region is located above the second piston; a water flow channel is arranged in the connecting rod; the water flow channel comprises an entrance section, a throat section and a diffusion section; the diffusion section is internally provided with a check valve; a suction hole is formed in the edge of the first piston and a plugging block capable of plugging the suction hole is arranged; the compression part comprises a laser transmission end and a laser receiving end, which are arranged at two sides of the detection region. According to the equipment provided by the invention, gas is compressed so that the concentration of dust in a space is improved and the detection precision is improved.

The invention discloses out-of-control vehicle magnetic buffer type arresting equipment. A base plate is included. A left side of the top of the base plate is fixedly connected with a tendency inclined plate; a guide buffer mechanism is fixedly connected to the middle position of the bottom of an inner cavity of a trapezoidal guide groove; a placement box is fixedly connected to the middle of theright side of the top of the base plate; a non-Newtonian fluid is arranged in an inner cavity of the placement box; protection mechanisms are fixedly connected to the right side of the top of the baseplate and located on the front surface and the back surface of the placement box; and a magnetic current strengthening mechanism is movably connected to the side, close to the protection mechanisms,of a side guide plate, a stepping mechanism is fixedly connected to the side, away from the tendency inclined plate, of the magnetic current strengthening mechanism, and a springback guide mechanism is movably connected to the bottom of the side, away from the tendency inclined plate, of the side guide plate. The invention relates to the technical field of arresting equipment. An impact force is converted through impact, the impact force is dispersed, a magnetic field change is performed through permanent magnets, a magnetic repulsion force is enhanced, and effective deceleration interceptionis performed on a vehicle.

The invention discloses a linear sliding rail device, which comprises a sliding block, a linear orbit, positioning pins, a limit block, a positioning hole, a fixing bolt, a retaining strip, a mountingblock and a pad. The linear sliding rail device is characterized in that the linear orbit is arranged at the bottom of the whole structure, the multiple positioning pins are evenly arranged on the linear orbit, the sliding block is arranged above the linear orbit, and the retaining strip is arranged on the upper portion of the outer side of a left limit block. According to the linear sliding raildevice, a linear sliding rail is used for driving objects on the sliding block to move horizontally, the sliding block is mounted on the linear sliding rail, the sliding block moves along the linearsliding rail, and thus drives objects on the sliding block to move, the effect of linear movement is achieved, and the limit block is used for limiting and blocking the sliding block, so that it is avoided that the sliding block slides at too high a speed that the sliding block rushes out of the sliding rail; the safety and stability of the structure are improved, patterns on the surface of the pad are used for increasing the friction force between the objects and the sliding block to reach the anti-skid effect, the retaining strip can effectively prevent the sliding block from overturning, and the linear sliding rail device also has the advantages of being low in cost, strong and durable, and flexible in connection among components.

The invention provides a large-aperture static blasting anti-punching device and belongs to the technical field of the engineering blasting. The device comprises a connecting pipe, a rubber sleeve, anupper baffle, and a lower baffle, wherein the bottom of the connecting pipe is provided with a baffle for blocking a bottom port of the connecting pipe, and the middle and lower side walls of the connecting pipe are provided with water injection holes for allowing an inner chamber of the connecting pipe to communicate with a drill hole; the rubber sleeve sleeves the outer side wall of the connecting pipe for blocking outlets of the water injection holes; the upper baffle sleeves the outer side wall of the upper portion of the connecting pipe and is detachably connected with the connecting pipe for blocking a mouth of the drill hole; the lower baffle sleeves the outer side wall of the bottom of the connecting pipe; and the upper baffle, the side walls of the drill hole, and the lower baffle define an anti-punching accommodating chamber for containing a static crushing agent. The invention also provides a large-aperture static blasting method. The large-aperture static blasting anti-punching device and the blasting method aim to solve the technical problem that the market is short of a static blasting device capable of preventing punching, adding water and heating at present.

The invention relates to the technical field of traffic safety of expressways and especially relates to an expressway danger-avoiding lane guidance system. The system comprises a four-stage mark guidance system and a four-layer linear guidance system. The four-stage mark guidance system comprises a first danger-avoiding lane forecast sign, a second danger-avoiding lane forecast sign, a curve warning sign, a danger-avoiding lane warning sign, a portal type danger-avoiding lane guide sign and a danger-avoiding lane confirmation sign. The four-layer linear guidance system comprises a warning typelinear guidance mark, a circular base type delineator, a protruding road sign, a rectangular delineator, a flexible warning column and an anti-collision barrel. The four-stage mark guidance system provides perfect way-finding information, a purpose of inducing an out-of-control vehicle to a braking slope bed of a danger-avoiding lane is achieved, and a probability that a truck driver misses the danger-avoiding lane is remarkably reduced. The four-layer linear guidance system realizes contour guidance and horizontal, longitudinal and transverse linear guidance of a danger-avoiding lane sectionand adjacent main line obstacles, and reduces the probability of colliding with a front vehicle and the obstacles.

The invention provides a method for improving the coal seam permeability by adopting directional hydraulic concentrated blasting and relates to the technical field of coal seam antireflection. The method comprises the following steps: step 1, drilling a blast hole in a coal seam, then performing hydraulic pre-splitting antireflection on the coal seam by utilizing the drilled blast hole, prohibiting the extraction of water remaining in the blast hole after hydraulic pre-splitting antireflection and ensuring that the water surface in the blast hole is at least higher than 2 m of the upper part of the coal seam; step 2, putting a directional hydraulic concentrated blasting device in the blast hole and sinking into the water surface; and step 3, detonating the directional hydraulic concentrated blasting device to detonate under the water and finish the antireflection operation. The method provided by the invention has the benefits that firstly, the hydraulic pre-splitting antireflection is performed on the coal seam, and then the directional hydraulic concentrated blasting device with a specific structure is detonated in the water remaining in the blast hole; through the coupling of detonation gas with the water remaining in the blast hole and the coal beam after hydraulic fracturing operation, the fracture development degree in the coal seam can be greatly improved; and through the method, before blasting, a yellow mud roll is not required to be poured in the blast hole, so that the operation is very convenient.

The invention discloses a protection type isolation fence for roads and bridges. The protection type isolation fence comprises a base, a rod sleeve, supporting components, protection rods, a supporting table, a tripod, a connecting hoop, connecting plates, fixing holes, a center rod, a reset spring, limiting rods, supporting rods, rubber gaskets, clamping columns, top plates, buckles, buffer springs and bearing columns. The isolation fence has the advantages that the common effect among the parts is used so that the collision strength of a vehicle can be reduced from multiple angles, and an improvement is made on the basis of original rigid isolation. The connecting hoop on the top of the isolation fence is connected to a preset connecting rod through the connecting hoop, so that the devices jointly form an isolation layer; the supporting function is achieved through the base and the supporting components. When a traffic accident occurs, the transverse impact of the vehicle makes the protection rods drive the rod sleeve to rotate, the reset spring in the rod sleeve can buffer the transverse impact, and the longitudinal impact force of the vehicle can be buffered through the supporting rods and the buffer springs in the limiting rods.

The invention discloses a pressure relief apparatus of a high voltage switch cabinet. The apparatus includes a cabinet body; a pressure relief cover is arranged above a busbar chamber of the cabinet body; the pressure relief cover and the busbar cover are connected by metal screws; and pressure relief holes are arranged on the pressure relief cover. According to the pressure relief apparatus provided by the invention, it can be ensured that high voltage switch cabinet equipment can carry out operation safely; and safety of working personnel can also be ensured; meanwhile, heat radiation of the high voltage switch cabinet can be carried out conveniently.

The invention discloses a highway bridge anti-collision device which comprises a base. A supporting plate is integrally formed on the outer wall of the top of the base, clamping grooves distributed atequal intervals are formed in the outer wall of one side of the supporting plate, buffer assemblies are installed in the clamping grooves through bolts, each buffer assembly comprises an installationplate, and a reflective sticker is bonded to the position, close to the top, of the outer wall of one side of the installation plate; and a clamping block is integrally formed on the outer wall of one side of the installation plate, the clamping block is clamped in the clamping groove, a mounting groove is formed in the outer wall of one side of the installation plate, and sliding grooves distributed at equal intervals are formed in the outer wall of the bottom and the outer wall of the top of the mounting groove. When the device is impacted by a vehicle, a spring in the buffer assembly can reduce an impact force of the vehicle on the device, and meanwhile, a rotating roller enables a vehicle body to slide forwards along the supporting plate so that the vehicle is prevented from rushing out of the road surface, and the practicability of the device is improved; the clamping groove is matched with the clamping block so that the buffer assemblies are replaced conveniently; and installation difficulty of workers is reduced.

The invention discloses a pet pulling device, and relates to the field of pulling devices. The pet pulling device comprises a first upper shell, a first lower shell, a second upper shell, a second lower shell, a button assembly, a rotary fixing assembly and a pull rope inlet and outlet mechanism, wherein the first lower shell and the first upper shell are integrated, the second lower shell and the second upper shell are integrated, the first upper shell and the second upper shell are relatively fixed, the first lower shell and the second lower shell are relatively fixed, the button assembly and the rotary fixing assembly are installed in the first lower shell and the second lower shell, and the pull rope inlet and outlet mechanism is installed on the side face of the first lower shell and the side face of the second lower shell. By means of the pet pulling device, damage conditions can be effectively reduced, the rope breakage probability is reduced, the use quality is improved for a user, and the service life is prolonged.

An indoor ant trapping and killing device comprises a barrel body used for containing ant killing liquid, an ant trapping plate used for spreading dessert, a sprayer used for spraying the ant killingliquid, and an ant trapping opening formed in the barrel body above the ant killing liquid; the ant trapping plate is located under the ant trapping opening and is arranged on a supporting shaft, thetwo ends of the supporting shaft are installed on the barrel body, and a plurality of torsion springs sleeve the supporting shaft; the rotating force arm of each torsion spring is fixedly connected with the bottom of the ant trapping plate, and the static force arm of each torsion spring abuts against the inner wall of the barrel body; the sprayer is located above the ant trapping plate and is connected with a water pump through a pipeline; the water pump is fixedly installed inside the barrel body, a water inlet pipe of the water pump extends into the ant killing liquid, and a filter screen is arranged at the inlet end of the water inlet pipe; a light-sensing probe used for detecting the ant coverage condition is arranged on the sprayer, a controller is arranged on the outer wall of the barrel body, and the controller is connected with the light-sensing probe and the water pump through wires. The whole trapping and killing processes can be completed automatically under the cooperationof the controller, the light-sensing probe and the water pump, the ant killing effect is good, the ant killing efficiency is high.