60results about How to "Play a dust effect" patented technology

The invention relates to the technical field of foundation pit fences, in particular to a foundation pit safety fence for a bridge engineering construction site. A fence rod is movably embedded and connected in a base, a fence frame is movably connected to the outer surface of the fence rod, a wind direction rod is movably connected in the fence rod, and a wind direction wheel is fixedly connected to the top end of the wind direction rod. Threaded rods are fixedly connected to the bottom end of the wind direction rod and extends into the base, toothed plates are engaged to the two sides of the outer surface of the threaded rods, first connecting rods are movably connected to the outer surfaces of the toothed plates, second connecting rods are movably connected to the bottom ends of the first connecting rods, and pressing rods are movably connected to the bottom ends of the second connecting rods. Reinforcing plates are fixedly connected to the bottom ends of the pressing rods, the first connecting rods and the second connecting rods drive the pressing rods to downwards push the reinforcing plates to be attached to the ground, then the contact area between the base and the ground is increased, the effect of resisting wind blowing is achieved, and the fence is prevented from being blown down by strong wind.

The invention discloses a watering and dust falling device for highway construction and a using method thereof. The watering and dust falling device comprises a bottom plate, a water tank and a fixing seat are fixedly mounted at the top of the bottom plate, a storage battery pack, a water pump and a vertical rod are fixedly mounted at the top of the water tank, and a water suction pipe is fixedly mounted at the suction end of the water pump; and the end, away from the water pump, of the water suction pipe extends into the water tank, a water outlet pipe is fixedly installed at the discharge end of the water pump, and the end, away from the water pump, of the water outlet pipe is fixedly connected with a hose. The device is reasonable in design and good in practicability, multiple nozzles can be controlled to move up and down in a reciprocating mode, the multiple nozzles can be controlled to swing horizontally in a reciprocating mode and swing up and down in a reciprocating mode, the range of water mist sprayed out of the multiple nozzles is enlarged, the purification range of dust in air is widened, the dust in the air can be effectively purified, the air purification effect is better, the air pollution is greatly reduced, and the air quality is effectively improved.

The invention belongs to the field of municipal road facilities, in particular to a self-adjusting speed bump with high safety performance. The speed bump includes a base, and a sliding groove is formed in the upper surface of the base. The side wall of the sliding groove is in sliding connection with a speed reduction block. The speed reduction block is fixedly connected with the bottom face of the sliding groove through an elastic air bag. A plurality of lifting rods are fixedly connected to the lower surface of the speed reduction block. The bottom face of the sliding groove is rotationallyconnected with a plurality of sleeves. The sleeves sleeve the lifting rods and are in threaded connection with the lifting rods. Two rotating pipes are fixedly connected to the side wall of each sleeve, permanent magnet blocks are slidably connected into the rotating pipes, and the permanent magnet blocks are fixedly connected with the sleeve through reset springs. Magnet rings are fixedly connected to the lower surface of the speed reduction block. According to the invention, a vehicle with a slower speed can safely and comfortably pass through the speed bump, and a more obvious bumping feeling is given to the vehicle with a higher speed, so that a driver is forced to slow down the speed, a guarantee is provided for safe driving on a road, and a good warning effect is achieved.

The invention discloses a new energy environment monitoring device which comprises a wind driven generator. The wind driven generator is fixed to the ground. A first chain wheel is fixedly installed at the periphery of a fan blade shaft of the wind driven generator, the first chain wheel and the fan blade shaft share the same center line, the front face of a stand column of the wind driven generator is connected with the rear end of a rotating shaft through a bearing, two identical first chain wheels are fixedly installed at the periphery of the rotating shaft, the rotating shaft and the two corresponding first chain wheels share the same center line, the upper first chain and the lower first chain wheel at the rear side are connected through a first chain, the roof of a spinning workshopis provided with a worm gear through a wheel carrier and a bearing, and the roof of the spinning workshop is provided with a second chain wheel through a wheel carrier and a bearing. Environment monitoring can be performed on the spinning workshop, the high temperature environment inside the spinning workshop can be improved, and the device has the remarkable effect on dust fall inside the spinning workshop.

The invention discloses an easy-to-use crushing robot for garbage recovery, which comprises a crushing equipment body, and two symmetrical first bearings are fixedly connected to the upper part of the inner wall of the crushing equipment body. The easy-to-use crushing equipment for garbage recycling can drive the first rotating shaft and the second rotating shaft to rotate synchronously, thereby driving the first crushing cutterhead and the second crushing cutterhead to rotate synchronously, and can evenly crush the garbage , the crushing of garbage is more fine and thorough, the support plate and the filter screen can move up and down, and the crushed objects on the filter screen can be reasonably screened, which ensures the fine crushing of the garbage, and can buffer the impact of the crushed objects. With a certain dust reduction effect, it can effectively buffer and guide the crushed materials, ensuring the normal use of the crushing equipment, and can effectively seal the crushing equipment body, has a certain dustproof performance, and is more convenient to use.

The invention discloses a battery cupboard with a bottom ventilation function. The battery cupboard with the bottom ventilation function comprises a cupboard body, wherein the cupboard body consists of a bearing bracket; a plurality of drawer type trays are arranged in the bearing bracket; the drawer type trays are symmetrically arranged; and a ventilating device is arranged at the bottom of the cupboard body. The ventilating device comprises a bottom fan and a bottom ventilating pipeline, wherein the bottom fan is connected with the bottom ventilating pipeline. According to the technical scheme provided by the invention, the battery cupboard is delicate in appearance, simple and attractive, and an integrally symmetrical structure is adopted; the drawer type at each layer facilitates maintenance; and a battery management system is arranged for acquiring individual temperature data, and intelligently starting up the fan to cool, thus reducing the energy consumption.

The invention relates to the technical field of glass finishing, specifically to a grinding tool for glass finishing. The grinding tool for glass finishing comprises a grinding machine body; a rotating handle is fixedly connected to an output end of the grinding machine body; a grinding head is fixedly connected to the front end of the rotating handle; a dust collection mechanism is connected to the external side of the grinding machine body; and the dust collection mechanism comprises a storage box, a micro air pump and an arc plate. According to the grinding tool for glass finishing, under the working of the micro air pump, scraps generated during grinding are adsorbed through an adsorbing hole so as to reduce the damage to the health of people; during cleaning, a sweeping roll can be driven by pulling a connecting plate to sweep the internal wall of the arc plate so as to improve the sweeping effect of the grinding tool; meanwhile, by pressing a hand pump, water in a water tank canbe sprayed through a nozzle to spray the scraps so that a lubricating effect is realized and a certain dust suppression effect is realized; and therefore, the grinding effect is improved.

The invention discloses a blasting method for foundation pit excavation. The blasting method comprises the following steps of surveying a terrain, excavating a side slope, protecting the side slope, establishing a safety protection enclosure, drilling, charging, blocking, performing stepped blasting and removing ballast. The blasting method for foundation pit excavation is more scientific and reasonable, through the use of a mature slope protection technology and a rock stratum excavation construction technology, the establishment of a safe enclosure, strict drilling operation, a charging technology, standard operation of blasting, and the use of detection means with strict measures, the risk coefficient in the construction process can be effectively reduced, the blasting safety is greatly improved, and meanwhile, the influence of blasting on the surrounding environment can be effectively reduced, and the blasting method is high in blasting efficiency, low in cost and worthy of popularization.

The invention discloses a movable ship loader comprising a chassis and a water storage tank. The left end of the chassis is connected with a rear wheel driving mechanism; the right end of the chassisis connected with a front wheel driving mechanism; the water storage tank is arranged on the left side of the upper end of the chassis; the left end of the water storage tank is connected with a waterpipe; and a water pump is arranged in the middle of the water pipe; a high-pressure nozzle is connected to the lower end face of the water pipe; a cantilever sealing-tape machine is arranged above the chassis; a discharging port is formed in the right side of the lower end of the cantilever sealing-tape machine; a telescopic pipe is connected to the lower end of the discharging port; a sliding barrel is connected to the lower end of the telescopic pipe; a hook is arranged in the cantilever sealing-tape machine; a movable piece is connected to the right end of the hook; a connecting rod is arranged at the lower end of the movable piece; and a connecting cylinder is arranged outside the connecting rod. According to the movable ship loader, through the arranged hook, the movable piece and afixed piece can be freely disassembled, and then dustproof canvas is connected through the connecting rod.

The invention relates to the technical field of safety sanitary equipment, and discloses a parcel all-directional disinfection device. The parcel all-directional disinfection device comprises a device main body and a disinfection working cavity arranged in the device main body. The parcel all-directional disinfection device is characterized in that firstly, a parcel to be disinfected is placed on a conveying belt and conveyed into the disinfection working cavity, firstly, the left side and the right side of the parcel are disinfected, secondly, parcel clamping plates are used for clamping the left side and the right side of the parcel, and the parcel is driven to rotate by driving the clamping plates to rotate; a disinfection nozzle on the top wall of the disinfection working cavity works to spray a disinfectant to the parcel below, so that all-directional disinfection of the parcel can be realized in one cavity, manual contact is avoided, the safety and sanitation coefficient is improved, and the disinfection is more comprehensive and thorough; meanwhile, dust on the parcel can be thrown down in the rotating process of the parcel, dust is disinfected while the parcel is disinfected, and the disinfection nozzle can also achieve a dust falling effect.

The invention discloses mine ventilation and dust removal equipment and a using method, and relates to the technical field of mine machinery, the mine ventilation and dust removal equipment comprises a storage device, the upper end of the storage device is fixedly connected with a protection device, and the lower side face of the protection device and the upper side face of the storage device are fixedly connected with the upper end and the lower end of a supporting device respectively. A controller, a double-shaft motor, a power shaft, a driving tooth, a driven tooth, a transmission shaft, a rotating disc, an arc-shaped groove, an arc-shaped frame, a rotating disc, a rotating rod, a moving frame, a sliding groove and a sliding block are arranged to drive a left drawing rod and a right drawing rod to circularly move left and right, so that the problem that most existing mine ventilation devices do not have auxiliary dust falling structures; and dust in the mine tunnel cannot be reduced in the ventilation process of the mine tunnel in the mine, so that the quality of breathing air of miners and the practicability of the miners are reduced to a certain extent.

The invention discloses a conveyor with a dust falling function for a large mine field, and belongs to the field of mine field equipment. According to the scheme, a conveying belt is driven to rotate in a conveying driving mechanism, so that ore raw materials are stably conveyed; the cooling condensation mechanism drives a memory telescopic rod to extrude ammonium chloride powder in an extrusion balloon to be released by means of heat released by the motor to be mixed and reacted with barium hydroxide octahydrate powder, ammonia gas is released, heat absorption and cooling are achieved, the temperature of the motor is reduced, meanwhile, water vapor in air is condensed into water drops through low temperature, and a sponge layer is promoted to be wet; the pneumatic adsorption mechanism extrudes air convection and blows a plurality of collision balls to collide with one another and generate static electricity by means of expansion of an expansion bag body, meanwhile, the air guide fan blades are driven to rotate, air flowing is accelerated, the dust adheres to a viscous layer by means of air flowing and electrostatic adsorption, the dust is not prone to diffusing all around, and the dust falling effect is achieved. And the dust falling effect is effectively enhanced.

The invention relates to a trimming device, in particular to a ceramic wash basin blank trimming device. The technical problem to be solved is to provide the ceramic wash basin blank trimming device capable of realizing automatic polishing, trimming and dust falling. According to the technical scheme, the ceramic wash basin blank trimming device comprises a frame, first connecting blocks, a connecting plate, a rack, an air cylinder and a polishing mechanism, the first connecting blocks are slidably connected to the two sides of the frame, the connecting plate is rotatably connected between the first connecting blocks, the rack is arranged on one side of the frame, the air cylinder is arranged on the rack, and the polishing mechanism is arranged on the air cylinder. And a polishing mechanism for trimming and polishing the ceramic wash basin blank is arranged between the frame and the connecting plate. And when a third wedge-shaped block extrudes a moving block, the moving block moves towards the inner side to clamp the ceramic wash basin, so that the stability of the ceramic wash basin can be improved, and then the grinding and trimming efficiency is improved.

The invention discloses a polishing device for automobile spare parts, and relates to the technical field of automobile spare part machining. The grinding device for the automobile parts comprises a base, an iron support plate is fixed to the upper surface of the base, a grinding device body is arranged on the iron support plate, the grinding device body comprises a sliding rod and a first shell, a rotating motor is fixed to the right side of the sliding rod, and a grinding wheel disc is connected to an output shaft of the rotating motor through a nut; a powerful magnet is fixed to the front end of the sliding rod. According to the polishing device for the automobile parts, the cleaning brush controlled by the linear motor is arranged in front of the polishing wheel disc, when the polishing wheel disc works, the linkage rod drives the linear motor to rotate, normal work of the polishing wheel disc is not affected, when the polishing wheel disc resets, the linkage rod drives the linear motor to reset, and the cleaning brush is controlled by the linear motor to move circularly; and the grinding wheel disc is cleaned, waste residues on the grinding wheel disc are reduced, and the subsequent grinding effect is guaranteed.

The invention discloses a mechanical machining device for plastic pipes for buildings. The mechanical machining device comprises a base, wherein fixing seats are fixedly connected to the upper surfaces of the left side and the right side of the base; for each fixing seat, sliding rods are fixedly connected to the left side and the right side inside the fixing seat in the vertical direction, the outer surfaces of the middles of the sliding rods are connected with second sliding blocks in a contact mode, the number of the second sliding blocks is two, second springs are fixedly connected to thelower surfaces of the two second sliding blocks, a fixing rod is fixedly connected to the inner sides of the two second sliding blocks, and a connecting rod is fixedly connected to the middle of the upper surface of the fixing rod. According to the mechanical machining device, infinite cutting of the plastic pipes is realized, nozzles are installed above the left side of a cutting wheel, so that the effect of reducing dust is achieved, and cleaning of an operation table surface is facilitated, moreover, a first sliding groove, a second sliding groove and a third sliding groove are formed in the upper surface of the operation table, then cutting of different plastic pipes can be realized, manual cutting is replaced, both time and labor are saved, and the safety performance is high.

The invention discloses a road cutting device with a dust collecting function. The device comprises a machine table, a through groove is formed in the middle of the upper end of the machine table, the front and rear sides of the left portion of the upper end of the machine table and the front and rear sides of the right portion of the upper end of the machine table are each fixedly provided with a supporting leg, the upper ends of the two supporting legs are jointly and fixedly provided with a water storage box, an isolating device is arranged on the groove wall of the water storage groove, a sliding collecting device is arranged on the groove wall of the sliding groove, a blocking device is arranged in the middle of the upper end of the sliding collecting device, a cutting device is arranged in the middle of the lower end of the sliding collecting device, the front and rear sides of the left portion and the right portion of the lower end of the machine table are each provided with a rolling device, and the left portion and the right portion of the lower end of the water storage box are each fixedly provided with a spraying pipe. According to the road cutting device with the dust collecting function, the cutting depth of a cutting disc is adjusted when a sliding plate moves upwards or downwards, and practicability is improved.

The invention discloses an efficient stirring device for production raw materials of aerated concrete bricks, and relates to the technical field of aerated concrete brick production. The efficient stirring device comprises a shell, a vertically-arranged stirring shaft is rotatably connected to the center of the lower inner wall of the shell, multiple uniformly-distributed stirring rods are fixedlyconnected to the outer side of the stirring shaft, and two symmetrically-distributed stirring paddles are fixedly connected to the top end of the stirring shaft. According to the device, water flow is introduced through a dust falling pipe, water mist is continuously sprayed out under the action of an atomizing spray head, and therefore the dust falling effect is achieved on raised dust, and thehealth and safety of operators are protected; and during stirring, under work of a driving motor, the stirring shaft can drive the stirring paddles to rotate, the rotating stirring paddles can drive rotating rings at the bottom ends of the stirring paddles to rotate, the rotating rings can drive a sweeping brush to continuously brush the edge of the inner wall of the shell, and therefore attachment of raw materials is reduced, and the overall mixing and stirring effect of the raw materials is improved.

The invention discloses a dust falling system for ecological environment protection. The dust falling system comprises a street lamp pole, a street lamp body, a solar power generation board and a power storage box, wherein the solar power generation board and the power storage box are arranged at the top of the street lamp pole; a semicircle opening is formed in the street lamp pole, and a fixingboard is arranged on the position, at the lower end of the semicircle opening, in the street lamp pole; a dust falling device is arranged on the fixing board and comprises a transmission mechanism, apipeline and a spray head; the end, connected with the spray head, of the transmission mechanism stretches out of the street lamp pole through the semicircle opening; and a rainwater collecting deviceis arranged at the bottom of the street lamp pole, and the pipeline is connected with the rainwater collecting device through a booster pump. After rainwater is collected by the rainwater collectingdevice, the booster pump is started, and the rainwater enters the spray head through the pipeline; and meanwhile, a motor is started, the motor operates to enable the transmission mechanism to work, the transmission mechanism is fixedly connected with the spray head, thus the spray head also moves along with the transmission mechanism to spray out the rainwater so as to achieve the dust falling effect, and the purpose of ecological environment protection is achieved.

The invention discloses a precise hardware fitting machining drilling machine. The precise hardware fitting machining drilling machine comprises a base, wherein a supporting leg is fixedly mounted oneach of the front and rear sides of the left part of the upper end of the base and the front and rear sides of the right part of the upper end of the base; a machining table is fixedly mounted at theupper ends of the two supporting legs; a U-shaped groove is formed in the right part of the upper end of the machining table; a sliding groove is formed in the left side groove wall of the U-shaped groove; a sliding clamping device is arranged on the groove wall of the sliding groove; a groove is formed in the front side of the upper end of the machining table; a discharging device is arranged onthe groove wall of the groove; a feeding device is arranged in the middle of the upper end of the base; a telescopic machining device is arranged at the front part of the upper end of an L-shaped frame; a spraying device is arranged at the left part of the upper end of the machining table; and a water storage device is arranged on the middle side of the left part of the upper end of the machiningtable. According to the precise hardware fitting machining drilling machine, a workpiece is pushed by a discharging plate to be discharged, manual carrying is not needed, and time and labor are saved.

The invention discloses a movable dust falling device for highway engineering construction, and belongs to the technical field of highway engineering equipment, the movable dust falling device comprises a base, a water tank, a dust collection box, a dust collection cover, an air suction cover, a spraying mechanism and cleaning mechanisms, and the water tank, the dust collection box and the spraying mechanism are arranged at the top end of the base; the water tank is communicated with the spraying mechanism through a water supply pipeline; a water supply pump is arranged on the water supply pipeline; the cleaning mechanisms are mounted on two sides of the bottom of the base; a dust collection cover is installed at the top end of the dust collection box, the bottom end of the dust collection box communicates with an air suction cover through a dust collection pipe, the air suction cover is located between the two sweeping mechanisms, and an exhaust fan is arranged on the dust collection pipe. The device can effectively clean and collect dust on the road surface, and the dust falling and cleaning effect is good.

The invention belongs to the technical field of road and bridge maintenance, and particularly relates to a concrete curing spraying device for road and bridge construction. The device comprises a first strip-shaped plate, a second strip-shaped plate and a water injection system, the water injection system comprises two small water towers, the lower ends of the small water towers are fixedly connected with a circular plate, and the lower end of the circular plate is fixedly connected with a plurality of supporting columns in contact with the ground; the two small water towers are correspondingly arranged on the two sides of the first strip-shaped plate and the two sides of the second strip-shaped plate, strip-shaped grooves are formed in the upper end of the first strip-shaped plate and theupper end of the second strip-shaped plate, and strip-shaped openings connecting with the strip-shaped grooves are formed in the opposite side walls of the first strip-shaped plate and the second strip-shaped plate; and the same bottom plate is arranged on the upper sides of the first strip-shaped plate and the second strip-shaped plate. The spraying device is an automatic reciprocating type spraying device, spraying operation can be performed on a constructed road surface in a reciprocating mode, a spraying range is enlarged, the spraying effect is further improved, and in addition, a dust falling effect on the constructed road surface can be achieved through cooperative use of wind energy and spraying.

The invention discloses a textile machinery supporting device, and belongs to the technical field of textile machinery. The textile machinery supporting device comprises a supporting base and a mounting frame, wherein the mounting frame is fixedly connected to the top end of the supporting base, air holes are formed in the top face of the mounting frame, adjusting damping devices are connected tothe two ends of the top end of the supporting base, and each adjusting damping device comprises a fixing rod which is fixedly connected to the top face of the supporting base; an adjusting disc is spirally connected to the fixing rod, the fixing rod is further sleeved with a first damping spring, an auxiliary supporting plate is fixedly connected to the bottom face of the textile machine mountingplate, and an auxiliary damping mechanism is connected to the bottom end of the auxiliary supporting plate; and a driving heat dissipation mechanism is connected to the side wall of the mounting frame, and a linkage dust collection mechanism is mounted in the mounting frame and the supporting base. According to the textile machinery supporting device, the problems that because a damping structureis not arranged in the existing design, textile machinery is prone to failure due to vibration, and raised dust generated when the textile machinery works cannot be treated are effectively solved.

The invention discloses a large-area dust fall repairing device for a house building construction site and a using method thereof, relates to the technical field of house building construction, and aims to solve the problem that when water is directly sprayed, the water consumption is relatively high, the contact area with dust is limited, the dust falling effect can only be achieved in a relatively small range, and the large-area dust falling efficiency is poor. Two first U-shaped frames are arranged above a device base; second U-shaped frames are arranged above the two first U-shaped frames; a lower bottom plate is arranged between the two first U-shaped frames; an upper lifting plate is arranged between the second U-shaped frames; and a grating dust-proof net is arranged between the lower bottom plate and the upper lifting plate. A mounting hole is formed in the grid dust-proof net. An air exhaust head is arranged on one side of the mounting hole and is in joggle joint with the grid dust-proof net. A dust removal box is arranged above the device base, an exhaust fan is arranged above the dust removal box, and a rubber corrugated pipe is arranged between the exhaust fan and the air exhaust head.

The invention discloses a spraying dust-settling device for coating production. The device comprises a water tank; the interior of the water tank is divided into a dust collection area and a sprayingarea; a dust collection structure is arranged above the water tank; the dust collection structure is provided with a dust collection opening, a dust collection fan located in the dust collection opening and a dust collection pipeline leading the tail end of the dust collection opening to the position below the liquid level of the dust collection area; a spraying structure is arranged above the dust collection structure; the spraying structure is provided with a spraying plate, an atomizer located below the liquid level of the spraying area and an atomizing pipeline communicated with the atomizer and the spraying plate. The device can spray and reduce dust, collect dust and prevent the dust from flying again, has a continuous and good spraying and dust reducing effect, can improve the environment of a coating production workshop and protect the health of workers, and has an attractive in appearance and good market value.

The invention discloses an embedding-type purification-type refrigerator. The embedding-type purification-type refrigerator comprises a refrigerator body and a fixing box; the fixing box is fixedly connected to the upper end of the refrigerator body; a cleaning hole is formed in the upper end of the fixing box; the inner side wall of the cleaning hole is hinged to one end of a cover plate; the other end of the cover plate is buckled to the upper end of the fixing box through a buckle; an air inlet and a first filter net are additionally arranged, so that the effects of cooling an air stream and dusting are realized; and then through cooperation of a filter cloth and first activated carbon, the integral air that enters the refrigerator is dustless air. An ultraviolet lamp is adopted for radiation and sterilization; negative oxygen ions are realized through photocatalyst catalysis; bacteria in the air are removed through filtration of a bacterium filtration film; and an absorption frameand second activated carbon are adopted, so that the discharged air is pollution-free.

The invention discloses a cord fabric separating and coiling device of the high-platform cutting machine. The cord fabric separating and coiling device comprises a fixing table, a dust removal box and a cutting box, and the top face of the fixing table is concaved inwards to form a mounting groove, and is connected with a conveyer belt through the mounting groove, and both the dust removal box and the cutting box are mounted on the top face of the fixing table; a cutting mechanism and a heating mechanism are installed in the cutting box, and a through hole is formed in one side of the top face of the cutting box; and an adjusting mechanism is installed on the through hole. According to the cord fabric separating and coiling device, a cord fabric is conveyed through the conveyer belt, and moved on the conveyer belt to sequentially pass through the cutting box and the dust removal box; when the cord fabric passes through the cutting box, hot air is blown from an air outlet pipe to the surface of the cord fabric for heating the cord fabric; then, the cord fabric is cut through a cutter, and the heated cord fabric is easy to cut; meanwhile, burrs and cuttings can be further reduced, and notches of the cord fabric are closed up through electric heating wires after cutting; and the burrs are further reduced.

The invention discloses a municipal road foundation pit safety protection device capable of being rapidly combined and shaped. The municipal road foundation pit safety protection device capable of being rapidly combined and shaped comprises a base, wherein a rectangular frame plate is fixedly mounted at the top of the base, five rubber rollers are fixedly mounted in the rectangular frame plate at equal intervals, two connecting bases are fixedly mounted on one side of the rectangular frame plate, clamping grooves are formed in the bottoms of the two connecting bases, two connecting plates are fixedly mounted on the side, away from the connecting bases, of the rectangular frame plate, and sliding holes are formed in the tops of the two connecting plates. The municipal road foundation pit safety protection device capable of being rapidly combined and shaped is reasonable in design, good in practicability, capable of achieving rapid combination, assembly and fixation of a protective fence, capable of effectively conducting fence protection on a foundation pit, convenient to disassemble and disintegrate the protective fence, convenient to transport and recycle, convenient to operate, time-saving, labor-saving and convenient to use; sprayed water mist can be used for effectively spraying water to the periphery of the foundation pit for dust falling, the quality of air around the foundation pit is improved, and environmental pollution caused during foundation pit construction is greatly reduced.

The invention relates to the field of mining machinery, in particular to a mining drilling machine. The mining drilling machine comprises a drilling machine platform and a drilling machine body arranged on the drilling machine platform, a power head and a guide rail used for guiding the power head to move linearly are arranged on the drilling machine body, and a clamping seat used for clamping a drilling rod is arranged on the guide rail. The mining drilling machine is characterized in that an automatic rod replacing device and an aerial fog mechanism are arranged on the guide rail of the drilling machine body, an adjusting mechanism used for controlling the drilling machine body to execute corresponding actions is installed on the drilling machine platform, and the end, away from the drilling machine platform, of the adjusting mechanism is connected with the guide rail. The provided drilling machine has the functions of automatically changing rods, cooling and dedusting, the position of the drilling machine is adjusted more conveniently, and adaptability is higher.