629results about How to "Play the role of dust" patented technology

This invention relates to dope technosphere, especially a silicone resin combination. According to weight, it is composed by methylvinylsiloxane rubber methylvinylsiloxane rubber 100 shares, methylvinyl group polysiloxane 50 to 400 shares, methylvinyl group silicone resin 50 to 400 shares, cross-linking agent 5 to 50 shares, catalyzer 0.1 to 2 shares and depressor 0.05 to 2 shares. First mix the materials uniformity, then add catalyzer and whip uniformity. This combination has high rigidity and high diaphaneity after solidifying, has strong protective effect to letter and pattern of knod top, can act dustproof action.

A flat television wall hanging frame comprises a bottom plate fixed with a wall body and a link plate connected with the back of a monitor. The bottom plate is connected with the link pate by a regulating mechanism which comprises a height adjustment device and an oscillation angle adjustment device. The height adjustment device comprises a position block, a leader, a screw mandrel, an elevator, a screw mandrel sleeve, a retainer ring, a motor and a control circuit board which can control the motor to positively and negatively rotate. The oscillation angle adjustment device comprises a guide bar, a linkage gear, a swing pinion and a guide ball block. The flat television wall hanging frame has the following advantages that the axial direction of the screw mandrel is controlled for rotating in clockwise and counterclockwise way by controlling the positive and negative rotation of the motor, and then the screw mandrel is driven to move up and down, thus realizing the up and down moving of the link plate; as the linkage gear connected with the elevator is fixedly connected with a guide ball block, one end of which is embedded in a wave guide groove so that the guide ball block and the linkage gear sway left and right in the up and down moving process, thus realizing the left and right sway of the link plate.

The invention discloses a periphery hole charging structure for energy-gathered hydraulic pressure smooth blasting, and a construction method thereof, and belongs to the technical field of tunnel construction. The periphery hole charging structure for energy-gathered hydraulic pressure smooth blasting is formed by a shot hole, water bags, an energy-gathered pipe powder charge and a stemming, wherein the water bags, the energy-gathered pipe powder charge and the stemming are arranged in the shot hole; the bottom of the shot hole is a section of water bag; the middle part of the shot hole is twosections of water bags; the energy-gathered pipe powder charge is arranged between the water bag on the bottom of the shot hole and the water bags in the middle of the shot hole; the stemming is blocked in the shot hole; a high-temperature high-pressure gas produced by explosion produces a 'water wedge' effect through a jet flow formed in an energy-gathered groove and the water bags in the smoothblasting shot hole under a blasting action, so that a rock initial crack is promoted to extend, expand and enlarge; meanwhile, due to a composite blocking function of the water bags and the stemming,the formed crack is favorably extended, expanded and enlarged; and the water bags are placed in the smooth blasting shot hole, and a water spray formed in the blasting process further plays a role infalling dust, so that the ventilation time is reduced, the working environment is improved, and the body health of constructing personnel is protected.

The invention discloses a multidirectional adjustment type coal mine tunneling device, which comprises a base, a moving plate, a first transmission cavity, a second transmission cavity and a tunnelingmechanism. Supporting legs are symmetrically mounted at the lower end of the base; the upper end of the base is in rotational connection with the moving plate through a rotating rod; hydraulic telescopic rods A are fixedly mounted at the lower end of the moving plate; an L-shaped plate is fixedly connected with the upper end of the moving plate, and the inner side of the L-shaped plate is provided with a first transmission cavity; a second transmission cavity is arranged above the first transmission cavity, and the lower end of the second transmission cavity is fixedly connected with a firstmoving block; the tunneling mechanism is arranged at the upper end of the second transmission cavity. The multidirectional adjustment type coal mine tunneling device is novel in design, simplicity inoperation, high in operating efficiency and capable of tunneling at different positions in different directions and sucking ash generated in a tunneling process, quality of an operating environment isimproved, and physical health of operators is benefited.

The invention provides an underground ventilated premixing chicken house which comprises a gable wall, side walls, a roof and a floor. An inner room is further arranged in the middle of the chicken house, partition plates are arranged in the side walls and inner walls in a sealed mode, and an air inlet plate is arranged between the two inner walls. A plurality of fans and a plurality of air inlet windows are uniformly arranged on the inner top. A plurality of wet curtains and exhausting ports are formed in the side walls, and air outlet grooves are uniformly formed in the inner walls. An underground exhausting bin is arranged below the floor, an exhausting pipe and a fan are arranged on one side of the underground exhausting bin, and an air outlet is formed in the upper end of the exhausting pipe. The underground ventilated premixing chicken house has the advantages that fresh air about to enter the chicken house and air in the upper layer of the chicken house are premixed, the premixed air is uniformly discharged into the inner room through a pressure bin, vitiated air settling to the lower portion of the chicken house is smoothly discharged out through the underground exhausting bin and / or exhausting ports formed in the side walls, the vitiated air settling to the lower portion of the chicken house can be well discharged out, and overall air change in the chicken house is uniform.

The invention relates to a dustproof outdoor display screen which comprises a display screen, a dust cover and a surface ash removal device, wherein the dust cover is embedded into the front of the display screen; and the surface ash removal device is mounted at the right end of the dust cover. The dustproof outdoor display screen can solve the problems that ash easily deposits on the surface of the existing outdoor display screen; personnel are required to clean the surface of the display screen on site at regular time and have a high aerial work risk factor; complete cleaning cannot be achieved manually; in the weather that aerial work cannot be performed, the surface of the outdoor display screen is not cleaned by people for a long term to result in excessive ash deposition and unclearplaying frames; and a publicity effect is reduced. A dustproof function of the outdoor display screen can be achieved; the personal aerial work is not required; the occurrence of a safety accident isavoided; the dust cover embedded into the outdoor display screen plays a dustproof role; the ash can be removed automatically in any weather; and the publicity effect is not reduced.

The invention discloses a water medium explosion technology which comprises the following steps: selecting a denotation point; installing a circular support bracket on a cartridge and putting the cartridge into blast holes in sequence; putting blast hole plugs at blast hole mouths; filling water through water filling holes of the blast hole plugs; sealing the blast holes after the water is filled up; further blocking the blast holes by using stemming; and detonating so as to obtain good glazes. The technology is simple to operate and low in explosion cost, and the water further has the function of dust suppression after the explosion.

The invention relates to a cold-bridge-free spanner tightness adjusting lock. The cold-bridge-free spanner tightness adjusting lock comprises a handle, a lock body, a handle seat, a rotating shaft and a rotating tongue, wherein the lock body comprises a lock cylinder and a lock seat, the lock cylinder is rotatably positioned in the lock seat, the lock seat and the handle are an integrated body and the lock seat is rotatably positioned in a handle seat. A convex shaft which is eccentrically arranged relative to a lock cylinder shaft is arranged at the tail end of the lock cylinder, a pin hole which is formed along the radial direction of the lock seat in a penetrating way is formed in the circumference of the lock seat, a slideable lock pin is arranged in the pin hole and the lock pin is provided with a notch which is matched and linked with the convex shaft. When the lock cylinder is not rotated, one end of the lock pin stretches out of the pin hole and is matched with a lock hole formed in the handle seat. The internal part of the lock seat is divided into an upper chamber and a lower chamber, wherein the lock cylinder and the lock pin are installed in the upper chamber, the lower chamber is rotatably connected with the rotating shaft and the rotating shaft penetrates through a shaft sleeve of the handle seat and is fixedly connected with the rotating tongue. An annular sealing groove is arranged on the circumference of the lock seat below the pin hole and a sealing ring is embedded into the annular sealing groove. The cold-bridge-free spanner tightness adjusting lock has the advantages that the structure is simple, the operation and the use are facilitated, the sealing performance and the anti-cold-bridge effect are good, the service life is long and the cold-bridge-free spanner tightness adjusting lock is suitable for being used as locks of various access doors.

The invention relates to a baozi vending machine and an assembly method thereof; the baozi vending machine comprises an electric steamer and a pot rack; a plurality of partitions are arranged in the pot rack at intervals from bottom to top, a plurality of steaming plates are arranged in parallel and side by side on each partition, and a row of steaming boxes are arranged on each steaming plate; the partitions, the steaming plates and the steaming boxes are of fence or mesh form; the partitions divide the pot rack into a plurality of zones; the corresponding sidewalls of each zone in the pot rack are provided with a goods exit and a material entry; one side of each steaming plate is provided with a screw slider mechanism for pushing the steaming boxes out of the good exit; the steaming plates are pushed out of or into the pot rack through the material entry; two sides of one end, close to each goods exit, of each steaming plate are provided with opposing sensors; an electric control box is arranged outside the pot rack. The baozi vending machine has the advantages that one baozi is put in one steaming box, the multiple steaming boxes are put on the steaming plates, the steaming boxes are automatically pushed out through the screw slider mechanism, the required quantity of baozi can be automatically pushed out without manual accessing, and the baozi vending machine is clean, sanitary and handy.

The invention discloses a dedusting device for a photovoltaic panel, which comprises a frame, transparent wind deflectors, an upper rolling shaft, a lower rolling shaft, a plastic thin film conveyer belt, a motor and a rotary hair brush. Two transparent wind deflectors are respectively arranged at the left end and the right end of the frame. The upper rolling shaft and the lower rolling shaft are respectively arranged at the upper end and the lower end of the frame and are connected through the plastic thin film conveyer belt. The motor drives the lower rolling shaft through a speed reducing mechanism, and the rotary hair brush is arranged at one side of a lower frame of the frame and is contacted with the plastic thin film conveyer belt tightly. The dedusting device for the photovoltaic panel has simple structure and low cost and is convenient to maintain, safe and reliable and is appropriate for dedusting the solar cell panels in water-deficient areas.

The invention relates to a recovery device, in particular to a breaking and recovery device of a plastic housing of an electronic product. The invention aims at providing the breaking and recovery device of the plastic housing of the electronic product, which has high breaking efficiency, and is fine in breaking and beneficial to better implementation of subsequent working. In order to solve the technical problem, the breaking and recovery device of the plastic housing of the electronic product comprises a bottom plate, a lower funnel, a collecting groove, a moving frame, a discharge device, a guide groove, an extrusion device, an air cylinder, a left bracket, a moving block, an oscillating rod and a third guide rod, wherein the collecting groove is formed in the middle of the top of the bottom plate; the left bracket is arranged at the left end of the top of the bottom plate; the air cylinder is arranged at one end of the left bracket; and the bottom end of the air cylinder is connected with the moving block. The device achieves effects of high breaking efficiency, fine breaking and benefits for better implementation of the subsequent working; according to the device, the extrusion device is used for primary breaking; a breaking plate is used for breaking again; and the breaking is fine.

The invention provides a pre-mixing ventilating type chicken house which comprises a gable wall, side walls and a roof, wherein an inner room parallel to the side walls is further arranged at the middle part of the chicken house, and comprises inner walls parallel to the side walls and an inner roof; partitions are hermitically arranged between the side walls and the inner walls; an air intake plate is arranged between the two inner walls located below the inner roof; a pressure bin is formed between the inner roof and the air intake plate; a pre-mixing bin is formed between the inner roof and the roof; a plurality of fans and a plurality of air intake windows are uniformly formed in the inner roof; a plurality of air intake holes and a plurality of small air intake windows are uniformly formed in the air intake plate; a plurality of wet curtains and air exhaust openings are arranged on the side walls; and a plurality of air outlet slots are uniformly formed in the inner walls. The pre-mixing ventilating type chicken house has the beneficial effects that the pre-mixing ventilating type chicken house can premix fresh air entering the chicken house and air on the upper layer of the chicken house, and pre-mixed air can be uniformly discharged into the inner room through the pressure bin, so that contaminated air sinking in the lower part of the chicken house can be well discharged, and the overall air in the chicken house can be replaced uniformly.

The invention discloses an injection mold capable of achieving fast cooling and demolding. The injection mold comprises an upper mold body, a lower mold body and a base; pressing rods are connected tothe two sides of the upper end of the upper mold body correspondingly; injection molding flow channels are pre-reserved inside the upper mold body and an injection molding head; the lower mold body is located at the lower end of the upper mold body; a heat conducting plate is disposed inside the lower end of the lower mold body; fins are connected to the lower end surface of the heat conducting plate; a fan is mounted at the right end of the outer side of the lower mold body; the base is located at the lower end of the lower mold body; demolding rods are disposed on the two sides of the upperend of a connecting plate correspondingly and penetrate through the lower mold body through second guiding holes; connecting pipes are connected to the front side and the rear side of the heat conducting plate correspondingly; and a heat dissipation flow channel is pre-reserved inside the heat conducting plate. By means of the injection mold capable of achieving fast cooling and demolding, duringinjection molding of plastic products, fast cooling and demolding of the plastic products can be achieved, the manufacturing time of the plastic products can be shortened, and the economic benefits are improved.

The invention relates to a safety helmet with a dust prevention and cooling function based on the internet of things. The safety helmet comprises a main body and further comprises a face mask, a cooling mechanism and a dedusting mechanism, the cooling mechanism comprises a cooling assembly and a jetting assembly, and the dedusting mechanism comprises a roller and two movable assemblies. By means of the safety helmet with the dust prevention and cooling function based on the internet of things, through the cooling mechanism, heat inside the safety helmet can be absorbed and taken away, thus thetemperature inside the safety helmet is lowered, the wearing comfort of workers is improved, the body fatigue of the workers is mitigated, cooled air is made full use of for dedusting, dust is prevented from covering the surfaces of the safety helmet and the face mask, thus the vision is not blurred, and the respiratory tract and the eyes of the workers are not influenced; through the dedusting mechanism, the surface of the face mask keeps clean, the visual effect is improved, the workers conveniently observe the surrounding environment during work, and the practicability and the functionality of the safety helmet are improved.

The invention discloses a split-type light-guide key switch and mechanical keyboard. The key switch comprises a key switch body, an optical crystal emitter device and an optical crystal receiver device, wherein the optical crystal emitter device and the optical crystal receiver device are arranged on a PCB. The key switch body comprises a housing and a press handle arranged on the housing. The optical crystal emitter device and the optical crystal receiver device are separated by a first light baffle device. A first light guider is arranged above the optical crystal emitter device. A second light guider is arranged above the optical crystal receiver device. Optical signals emitted by the optical crystal emitter device are transmitted back to the optical crystal receiver device through the first light guider and the second light guider. The press handle is provided with a second light baffle device for baffling the optical signals transmitted from the first light guider to the second light guider. Through the light guiders, not only the transmission stability of the optical signals is improved, but also cost and process requirement of the key switch are reduced, and meanwhile, precision and the service life of the mechanical keyboard are greatly improved.

The invention provides a tower crane spraying device having an automatic control function. The tower crane spraying device comprises, at least, a base, a tower crane frame, a balancing arm and a hoisting arm, wherein the balancing arm and the hoisting arm are horizontally connected onto the tower crane frame, a vertical pipe is arranged on the tower crane frame, a horizontal water supply pipe is arranged on the hoisting arm, and spraying heads are evenly distributed on the horizontal water supply pipe. The horizontal water supply pipe and the vertical pipe are connected through a rotating connector. A control box and a water pump are arranged on the vertical pipe, the control box is located on the base, a flow meter, a water pressure gauge and a controller are arranged in the control box, and a flow control knob, a time control knob and a water pressure control knob are arranged on the controller. The shortcomings in the prior art are overcome, and the tower crane spraying device is simple in structure, convenient to install and use and capable of automatically controlling the spraying time and water volume.

The invention discloses a dust removing method and a device of cantilever-type comprehensive mechanized development machine; limited sealing space is formed among the external space of the cutting head of the development machine, the development machine body and the coal rock body; the dust powder produced in the process of cutting and smashing the coal rock through the cutting head of the development machine is sealed in the sealing space; the dust powder in the sealing space is removed through the spraying dust removing device; the dust powder in the sealing space is pumped out through the dust removing fan and purified. The invention can greatly reduce the dust powder produced in the cutting process of the development machine, prevent the dust powder dispersing in the working environment and effectively intercept the dust powder flying so as to purify the air and prevent the operator suffering from pneumoconiosis. The device has higher economic and social benefits.

The invention provides a connecting structure for a motor and a circuit board in a flat sewing machine control device and belongs to the technical field of sewing machines. The connecting structure solves the problems of complicated connection between the motor and the circuit board, and the like at present. According to the connecting structure for the motor and the circuit board in the flat sewing machine control device, the control device comprises a housing internally provided with a cavity, the circuit board and a heat-dissipation aluminum plate, wherein the circuit board is fixed at the lower part of the cavity of the housing via the heat-dissipation aluminum plate. The connecting structure comprises a connecting plate at the top of the heat-dissipation aluminum plate, wherein a connector is arranged on the connecting plate, and a motor socket is arranged at the top of the circuit board and located in the connector. The connecting structure for the motor and the circuit board has the advantage of high mounting efficiency for connecting the motor and the circuit board.

The invention relates to sweeping equipment, in particular to bridge pavement sweeping equipment. The bridge pavement sweeping equipment has the effects of automatic sweeping and dust falling and comprises a movable plate, movable frames, wheels, a first mounting block, a first air cylinder and the like; a first through hole is formed in the middle of the movable plate; the movable frames are arranged on the left and right sides of the bottom of the movable plate in a front-rear symmetry mode; the wheels are arranged at the bottoms of the movable frames; and the first mounting block is arranged on the right side of the bottom of the movable plate and located on the left of the right movable frame. According to the bridge pavement sweeping equipment, the effects of automatic sweeping and dust falling are achieved, a person can move the bridge pavement sweeping equipment to the side of garbage, at the moment, the garbage is just located between a dustpan and a broom, then the person starts the first air cylinder, the first air cylinder is elongated to drive a swinging rod to swing leftwards, and then the swinging rod drives the broom to swing leftwards through a screw rod so that thegarbage can be swept into the dustpan.

The invention relates to the technical field of smashing devices, in particular to a smashing device capable of reducing flying dust and provided with a good smashing effect. The smashing device comprises a housing, wherein charge hoppers are arranged at left and right sides of the upper part of the housing; blocking plates are rotatably connected on the tops in the charge hoppers through pin rolls; springs are welded between the rear end surfaces of the blocking plates and the tops in the charge hoppers in an inclined mode; the bottom end of the housing communicates with a discharge hole; thebottom of the housing is further welded with a dustproof cover; the front side of the dustproof cover is in pushing-pulling connection to a storage drawer below the discharge hole; waste plastic is added into the housing through the charge hoppers; during adding, the blocking plates backwards extend springs for adding waste plastic when the pin rolls and the blocking plates which are rotatably connected to the charge hoppers sense weight generated by the waste plastic; and after adding is completed, the blocking plates seal the charge hoppers again by virtue of restoring force of the springs,so that generation of flying dust is reduced.

The invention discloses a career planning career guidance and business starting basic lecture assisting device, which comprises a box body, wherein the lower end of inside of the box body is fixedly provided with a separation plate; the separation plate vertically separates the inside of the box body into a storage chamber and a transmission chamber from top to bottom; an ascending and descendingplate is[] arranged inside the storage chamber; the upper end of the ascending and descending plate is fixedly connected with an ascending and descending block; the upper end of the ascending and descending block penetrates through the box body and is fixedly connected with a dustproof cover; an ascending and descending mechanism is arranged in the storage chamber and comprises two first threadedrods inserted and arranged on the top end inside the box body; two first through holes are symmetrically formed in the upper end of the separation plate. The career planning career guidance and business starting basic lecture assisting device has the advantages that the moving is convenient and stable; the turntable rotates to drive the display screen to raise up; students at the rear row of a classroom can conveniently watch and listen, so that the lecture effect is effectively improved; a servo motor can be started for regulating the inclination degree of the display screen, so that the watching experience of students can be improved; the lecture effect can be further improved.

The invention relates to a gas dust and slag water collector which comprises a box body, a gas and water slag inlet pipe arranged on the upper part of the side wall of the box body and aslant downwards inserted into the side wall of the box body, a slag discharging hopper arranged on the lower part of the side wall of the box body and aslant downwards inserted into the side wall of the box body, a water outlet arranged on the lower part of the side wall of the box body, a filter net arranged inside the box body and aslant arranged, and an air outlet arranged on the upper end face of the box body, vertically inserted into the box body and used for exhausting, wherein the lower end of the filter net is connected with the slag discharging hopper; water pipes for spraying water are arranged inside the upper end face of the box body, the pipeline of the gas and water slag inlet pipe and the pipeline of the air outlet; a water inlet of a water pipe inside the upper end face of the box body penetrates through the end part of the box body and is connected with an external water source through a movable joint and a quick plug; and at least one nozzle is arranged at the lower end of the water pipe inside the upper end face of the box body. The gas dust and slag water collector has the beneficial effect that potential safety hazard that harmful materials, such as gas, water and boring mud are collected in an underground tunnel so that gas exceeds limit, a large quantity of mixtures of boring mud and water are accumulated is prevented.

The invention provides a pedal controller. The pedal controller comprises a left pedal, a right pedal and a main control box; the left pedal and the right pedal are located above the main control box and connected with the main control box; the left pedal comprises a left footboard and a left rotation control box; the right pedal comprises a right footboard and a right rotation control box; the main control box comprises an upper cover, a base, a left box, a right box, a rotation control mechanism and a signal processing circuit. The pedal controller is reasonable in structural design and convenient to use, brake control box course control in unmanned aerial vehicle control is transferred to foot control, hands are liberated to complete task control functions of an unmanned aerial vehicle, and therefore the control comfort degree and control stability of the unmanned aerial vehicle are improved.

The invention discloses a new energy automobile power storage device. The new energy automobile power storage device comprises a shell, wherein a support plate is arranged at the bottom of the shell in a sliding way, a first cylinder is fixedly connected to the bottom of the support plate, a second cylinder is connected to the bottom of the first cylinder in a sliding way, a bottom plate is fixedly connected to the bottom of the second cylinder, a vertical plate is fixedly connected to the top of the bottom plate, two rail grooves are formed in one side, near to the shell, of the vertical plate and are symmetrically arranged, vertical rods are fixedly arranged in the rail grooves, buffer blocks are connected to the vertical rods in a sliding way, springs sleeve the vertical rods, linkage rods are hinged with the buffer blocks, one end of each linkage rod is hinged with the shell, and an air inlet pipe is fixedly connected to one side, near to the vertical plate, of the shell and is connected with the vertical plate in a sliding way. By the new energy automobile power storage device, heat dissipation and temperature rising of the power storage device are achieved, the cooling effectis good, a favorable temperature environment is provided, meanwhile, a dustproof effect is achieved, a buffer effect is provided for a horizontal position and a vertical direction, the shock-resistance performance of the power storage device is greatly improved, and the service lifetime of the power storage device is prolonged.

The invention relates to an air conditioner, in particular to an indoor unit of the air conditioner. The indoor unit comprises an indoor unit shell with an air outlet, wherein the indoor unit shell is provided with a door used for opening and closing the air outlet. The indoor unit comprises a drive device, wherein the drive device can drive the air outlet to be in a closed state and can drive the door to be located in the indoor unit shell and make the area of the projection, in the direction vertical to the air outlet, of the door smaller than the area of the air outlet. According to the indoor unit, the door can be used for closing the air outlet to perform a dustproof function, meanwhile, when the indoor unit works, the door can be used for opening the air outlet and be contained in the indoor unit shell, and the requirement for the appearance of the indoor unit during operating can be effectively met; besides, due to the fact that the area of the projection, in the direction vertical to the air outlet, of the door is smaller than the area of the air outlet, after the air outlet is opened, and the door is of an integrated structure in design, and when the air outlet is closed through the door, no joint lines exist on the surface of the door and the requirement for the appearance of the indoor unit is met.

The invention relates to the technical field of charging piles, in particular to a charging pile with a dust fall function. The charging pile comprises a base, a shell, a substrate, a water tank I, awater pump I, a water filling nozzle, an infrared detector, a door plate, a charging pile body, a hanger, a charging gun, a condensing pipe, a condenser, a central controller, a rain blocking plate, atriangular ceiling, a dust sensor, an electric telescopic rod, a fixing rod, a solar panel, a water inlet channel, a water tank II, a liquid level sensor, a water pump II, a water pump III, a fixingcolumn, an atomizing spray head, a photosensitive sensor and an electromagnetic valve, wherein the shell is arranged at the top end of the base; the substrate is arranged at the bottom end inside theshell. The charging pile is novel in structure, has diverse functions, is environmentally friendly and has very high practicability. By adopting the charging pile, rain water collection and light energy collection and conversion functions can be realized, and the collected rain water is condensed and cooled; meanwhile, smart dust fall and water source supplement can be performed, normal running ofa device is ensured, and the power energy is saved greatly.

The invention relates to the technical field of wood-working machines, in particular to a novel sliding table saw. A fixed table board is arranged on a base, a saw blade lifting hand wheel is arranged on the front side of the fixed table board, a saw blade inclination adjusting hand wheel is arranged on the side wall of the base, a saw blade groove is formed in the middle of the fixed table board, a safety protective cover is arranged above the saw blade groove and is hollow, the tail of the safety protective cover is connected with a dust collecting device, the dust collecting device is connected with a motor in the base, a movable baffle is arranged on the left side of the saw blade groove, a movable baffle is arranged on the right side of the saw blade groove, an abutting and blocking adjusting rod is arranged at the end of a movable abutting and blocking device, a scaleplate is arranged on the front side wall of the fixed table board, and a transparent pointer is arranged on the scaleplate in a sleeved mode. The novel sliding table saw is simple in structure and convenient to operate, wood bits can be handled in time, the sanitary condition of a work site is improved, and the novel sliding table saw is long in service life and high in precision.

The invention belongs to the field of traffic, in particular to a deceleration strip with a warning function. The deceleration strip includes a decelerating press block, wherein decelerating pressingstrips are fixedly connected to the side walls of the two sides of the decelerating pressing block; a cavity is formed in the decelerating pressing block; two vertically-arranged fixing plates are fixedly connected into the cavity; and the cavity is divided into a decelerating cavity located in the middle and transmission cavities located in the two sides through the two fixing plates, and a horizontally-arranged sliding plate is connected into the decelerating cavity in a sealed and sliding mode. As the deceleration strip is provided with a flow limiting valve, when an automobile slowly passes through the deceleration strip, the flow limiting valve in the fixing plate exhausts the gas in the decelerating cavity in the process, so as to enable the rolling plate to descend by a large height, and then the bumping feeling of a driver can be effectively relieved; and when an automobile runs quickly, due to the fact that the flow limiting valve cannot exhaust gas in the decelerating cavityeasily in a short time, the rolling plate cannot descend obviously, and the obvious bumping feeling can be brought to the driver, so that the automobile speed of the driver can be reduced, and the road safety can be improved.

The invention discloses a pigment storage and blending device for artistic design, and belongs to the field of pigment storage and blending. The pigment storage and blending device comprises a shell, a driving mechanism and a plurality of storage barrels. The storage barrels capable of storing pigments of different colors are distributed in the shell in the circumferential direction, a driving shaft and a driving gear can be driven to rotate synchronously by rotating a rotating ring in the driving mechanism, and driven gears at the top ends of the storage barrels can be driven to rotate through the driving gear, so that extrusion lead screws are controlled to drive pistons to move in the storage barrels in the axis direction of the storage barrels, and materials in the storage barrels are extruded to flow out of output pipes. The driven gears can be meshed with or separated from the driving gear under driving of second connecting pipes. The driven gears at the top ends of one or more specified storage barrels can selected to be meshed with the driving gear according to demand, various pigments with different colors can be obtained for blending at a time, and accurate blending is achieved. Operation is easy, use is convenient and flexible, and carrying is convenient.