147results about How to "With buffer capacity" patented technology

The invention discloses a foot-type robot single-leg device and a robot. The foot-type robot single-leg device and the robot are used for solving the problems that an existing foot-type robot single-leg structure is complex in structure and high in cost. The foot-type robot single-leg device comprises a hip part, a thigh part and a shank part. The hip part and a hip driving mechanism are connectedthrough a hip connecting piece to form a hip joint; the hip part and the thigh part are connected through a first rotating pair to form a crotch joint; the thing part and the shank part are connectedthrough a second rotating pair to form a knee joint; the hip part is connected with the thigh part through a hip-leg connecting piece; the hip part is driven by the hip driving mechanism, thus the thigh part rotates around the X-axis, and the thigh part is driven by a crotch driving mechanism to rotate around the Y-axis; a knee driving mechanism on the thigh part is connected with the shank partthrough a shank connecting piece, and the shank part is driven by the knee driving mechanism to rotate around the Y-axis; and the hip driving mechanism, the crotch driving mechanism and the knee driving mechanism are of the same structure and are all ball screw driving units.

The present invention relates to a chitosan phosphorylation modification method, which comprises the following steps: 1) a reaction, wherein under a condition of a temperature of 0-5 DEG C, 1 g of chitosan is dissolved into 7 ml of methyl sulfonic acid, 0.5-3.5 g of phosphorus pentoxide is added, and a continuous mechanical stirring reaction is performed for 2-3 h in the protection of nitrogen gas; and 2) separation, wherein ether is added to the reaction system obtained from the step 1) to carry out precipitation, centrifugation is performed, acetone and methanol are sequentially adopted to wash the precipitate, deionized water is adopted to dissolve the precipitate, the turbid solution is sequentially subjected to dialysis and vacuum concentration, and the concentrated solution is subjected to freeze-drying to obtain the product. The chitosan phosphorylation modification method has the following advantages that: 1, the method has characteristics of simpleness, easy operation, high yield, and environmental protection, and is suitable for industrial production in reactions; 2, the obtained product has a high substitution degree, and the phosphate has strong chelating ability; and 3, the obtained product can be widely used in agriculture, textile, medicine, food, cosmetics, environmental protection and other fields.

The invention belongs to the technical field of polyurethane elastomers, and particularly relates to a polyurethane elastomer composite for protecting the outer layer of a storage tank and a preparation method thereof. The polyurethane elastomer composite comprises an A component and a B component, wherein the A component includes polyether polyol, a plasticizing agent, a cross-linking agent, a catalyst, a pigment, an antioxidant, an ultraviolet absorbent, a thickening agent, a defoaming agent and an adhesive force accelerating agent; the B component includes polyether polyol, isocyanate and a plasticizing agent. The polyurethane elastomer composite disclosed by the invention can be used for isolating the contact of the storage tank and outside moisture, an acidic material, and the like by being sprayed on the outer wall of the storage tank, prevents the problem of easiness for rusting and corrosion through certain buffer capacity and has better buffer effect on the impact objects, such as hailstones and the like, on the storage tank, thereby prolonging the service life of the storage tank. The preparation method disclosed by the invention is scientific, reasonable, simple and feasible.

The invention relates to the technical field of the traffic safety, and specifically relates to a runaway vehicle guide system and method for a long downhill road section of a mountain highway. The system comprises a runaway vehicle judgment system, a runaway vehicle guide system and a control decision-making system; and the method comprises the following steps: when a vehicle enters a work region, a monitoring facility performs real-time monitoring on a passing vehicle speed and running state; the runaway vehicle judgment system judges whether the vehicle is runaway according to the monitoring data; if the vehicle is runaway, the control decision-making system controls the runaway vehicle guide system to work to guide the runaway vehicle; after sensing that the vehicle has pulled away theguide region, a sensing device automatically lands to accomplish the guide of the runaway vehicle. The system and method are designed by combining the specific escape ramp at the mountain highway with the relatively mature liftable road pile technology, a caution light and a mesh are arranged on the liftable guide pile, the guidance of the guide structure is enhanced, and the guide structure hasthe buffer capacity the liftable guide pile; the structure is simple, the mounting and maintenance are convenient, and the system has strong creativity.

The invention relates to a pretreatment device for preparing glass fibers. The pretreatment device comprises a base, a collecting box, a hopper, a feeding tube, a crushing tube, a crushing chamber, acontroller and a plurality of support legs, wherein the crushing chamber is internally provided with a crushing mechanism, the crushing tube is internally provided with a compacting mechanism, a filter screen and a support mechanism, the compacting mechanism comprises a driving component, a telescopic frame, a slip ring, a sliding rail, a flat plate, a spring, a compacting plate and two limit components, the support mechanism comprises a support plate, a steering plate, a connecting rod, a steering component and two dredging components, and the steering component comprises a side plate, a first motor, a bearing, a screw rod, a slider and a strut. The pretreatment device for preparing glass fibers has the advantages that the support mechanism assists in supporting the filter screen, therebypreventing the phenomenon that the filter screen is squeezed by ores to deform or even break; moreover, in the pulverization process, the ores are pressed downward by the compacting mechanism and pulverized between first sawtooth and second sawtooth, thereby ensuring the pulverization effect and improving the practicality of the device.

Disclosed is a hydraulic extension cushion with a planetary roller screw driven by an alternating-current servo synchronous motor. A pneumatic control valve core structure of a core mechanism controlling blank holding force is replaced by a valve core structure driven by the alternating-current servo synchronous motor, and the valve core structure is higher in accuracy and responding speed; the structure is simple and compact, and the failure rate is low; the valve core structure design has a buffering capacity, the problem of too large blank holding force at the initial moment of stamping can be solved, and meanwhile, a main valve core is protected against damage. A pressure sensor is arranged in a piston cavity, and the alternating-current servo synchronous motor can be adjusted conveniently according to instantaneous pressure conditions, accordingly valve core displacement is controlled accurately, accurate control over the blank holding force is achieved, and the whole forms a closed loop system. The alternating-current servo synchronous motor drives a screw to rotate through deceleration, then the rotation is converted into the linear motion of the valve core through a planetary roller pair, the alternating-current servo synchronous motor is used for controlling the displacement of the valve core in a closed-loop mode, and accordingly accurate blank holding force adjustment can be achieved.

The invention discloses an earth surface rock breaking multi-position rotary drill machine for oil exploitation. The earth surface rock breaking multi-position rotary drill machine includes a fixed plate, a movable groove, a first fixing strip and an embedding groove. A supporting rod is fixedly welded to the outer wall of the fixed plate, a sliding block is mounted on the inner wall of a slidinggroove, a driving motor is mounted at the tail end of a movable rod, the output end of the driving motor is in flange connection with a rotating shaft, the first fixing strip is fixedly welded to thetail end of the fixed plate, a first mounting strip is mounted below the first fixing strip, the lower end of the first mounting strip is in screw connection with an anti-collision strip, the inner wall of the anti-collision strip is provided with a damping pad, and the embedding groove is disposed on the edge of the inner wall of the first mounting strip. The supporting rod in the earth surface rock breaking multi-position rotary drill machine for oil exploitation has a stabilizing and balancing function, the effect of fixedly supporting the whole machine can be achieved, and because a hydraulic pump and the driving motor generate a certain amplitude during the working process, a damping rod can have effects of damping on the amplitude.

The invention discloses a carbide slag powdering process and a carbide slag powdering system and belongs to the field of resource and environment protection. The carbide slag powdering system comprises a drying system, a grinding system and a powder selecting system, wherein the drying system comprises a rotary kiln, a furnace, a first draught fan and a rotary kiln feeding bin, wherein one side of the rotary kiln is communicated with the furnace, and the other side of the rotary kiln is communicated with the first draft fan and the rotary kiln feeding bin; the grinding system comprises a pre-grinding bin which is communicated with the outlet of the rotary kiln and a ball mill which is communicated with the outlet of the pre-grinding bin; the powder selecting system comprises a powder selecting machine which is communicated with the outlet of the ball mill; and hopper lifting machines are arranged at the positions of the rotary kiln feeding bin, the furnace and the pre-grinding bin. According to the process disclosed by the invention, the carbide slag is processed by the system and prepared by the system into qualified desulfurizing agent for wet desulphurization, reducing matters containing phosphorus, sulfur and the like in the carbide slag are oxidized in a high-temperature environment while the carbide slag is dried, and high-quality carbide slag desulfurizing agent can be obtained by more accurate screening.

The invention discloses a method for preparing novel biochar by mixing sludge and red soil and applications. The preparation method comprises the following steps: mixing excess sludge of a sewage treatment plant with red soil according to a certain ratio, and carrying out drying, high-temperature carbonization and nitric acid modification to prepare the novel biochar with a porous structure, whichcan promote electron transfer and accelerate degradation of organic matters. Both the sludge and the red soil contain rich mineral elements and can provide elements necessary for the growth of microorganisms; particularly, rich iron elements in the red soil can satisfy the requirements of enzymes participating in metabolism in microorganisms; the red soil is acidic, and the sludge is weakly alkaline and has a certain pH buffer capacity, so that the sludge is mixed with the red soil for carbonization, and the neutral pH suitable for microbial growth can be stabilized. The addition of red soilis beneficial to enhancing the strength of the mixed biochar, thereby prolonging the service life and enhancing the recovery rate. According to the method, the sludge and the red soil are used as biochar preparation raw materials, so that the method is green, efficient, cheap and low in preparation cost and has good environmental and economic benefits.

The invention discloses a trailer for civil engineering. The trailer comprises an outer base plate, an inner base plate, a support rod and rollers, wherein the inner base plate is arranged in the outer base plate, and shock resistant springs are arranged between the inner base plate and the outer base plate; the support rod is mounted on one side of the outer base plate; the rollers are mounted at the bottom of the outer base plate. According to the trailer disclosed by the invention, the outer base plate and the inner base plate are arranged, and the shock resistant springs are arranged to be connected between the outer base plate and the inner base plate, so that the inner base plate has a certain buffer capacity, and the shockproof effect is good; a non-slip pad is arranged on the support rod, so that the non-slip capacity of the trailer can be improved.

The invention discloses a liftable wall-mounted new energy vehicle charging pile. The pile comprises a guide rail, a lifting frame is arranged in the guide rail, a lifting mechanism is arranged in thelifting frame; the other end of the lifting mechanism is arranged in the guide rail; fixing mechanisms with buffering functions are arranged at the top ends of the guide rails; buffer mechanisms arearranged at the bottom ends of the guide rails; a charging pile is arranged at one end of the lifting frame; the charging pile is fixedly connected with the lifting frame through a bolt; a charger isarranged in charging pile, a second PLC module is arranged at one end of the charger; a take-up mechanism is arranged at one end of the charging pile; a charging mechanism with a fixing function is arranged on one side of the take-up mechanism; a cable is arranged at the other end of the charger, the top of the cable is extended into the charging mechanism through the take-up mechanism, and a heatdissipation mechanism is arranged at the other end of the charging pole. The charging pile has the beneficial effects that the charging pile is lifted when charging is not carried out, the space canbe effectively saved, the space utilization rate is increased, and the practicability of the charging pile is improved.

The invention relates to a method for carrying out phosphorylation modification on chitin. The method comprises the following steps: 1) preparation of an Eaton reagent: weighing phosphorus pentoxide under a dry state, adding the phosphorus pentoxide into a flask, continuously stirring to mix and dissolve the phosphorus pentoxide with methanesulfonic acid for 1-2 hours; 2) reaction: crushing dried chitin, extracting components passing through sieve holes, dissolving dry chitin dry powder in the Eaton reagent under the protection of nitrogen, and stirring to react; and 3) separation: adding diethyl ether in the reaction system, precipitating and centrifuging, and washing the precipitate; and then, dissolving the precipitate in deionized water; vacuum concentrating dialyzed turbid liquid, and freeze drying the concentrated solution to obtain a product. The method provided by the invention has the advantages that 1. the method is simple and easy to operate, high in yield and is environment-friendly, thereby being suitable for industrial production. 2. the degree of substitution of the obtained product is high; and 3. the method provided by the invention is used for carrying out phosphorylation modification on the chitin, and after the solubility is reinforced, the chitin is conducive to organism absorption and shows new physiological and biochemical activities.

The invention discloses a marine hydrological observation device. The device comprises a floating platform, a main bracket arranged above the floating platform and a balance bracket arranged at the bottom of the floating platform, wherein a closed electronic cabin is arranged in the floating platform; a storage battery, a control circuit and a memory are arranged in the closed electronic cabin; amonitoring device is arranged above the floating platform; the storage battery is connected with the monitoring device through the control circuit; the output end of the monitoring device is connectedwith the memory; and a supporting frame is fixed to the top of the main support. A solar cell panel is movably installed on the top of the supporting frame. The solar cell panel is connected with thestorage battery through the control circuit. The upper end of the solar cell panel is hinged to the top of the supporting frame. According to the solar buoy, the service life of the solar cell panelcan be prolonged, the number of overhauling times can be reduced, the solar buoy can well adapt to the environment in water, and the buoy can be kept more stable.

The invention discloses a marine fuel gas conveying double-wall pipe. The marine fuel gas conveying double-wall pipe comprises an inner pipe and an outer pipe which are coaxially arranged in a complete set mode, wherein supporting assemblies are arranged between the inner pipe and the outer pipe in the length direction of the double-wall pipe at intervals, each supporting assembly comprises at least three supporting structural parts, the at least three supporting structural parts are evenly distributed in the annular direction of the inner pipe so that even supporting can be formed between the inner pipe and the outer pipe, and each supporting structural part is composed of a hard guide pipe and an inner supporting part. The guide pipes are perpendicularly and fixedly connected with the inner pipe so that the structural stability of the inner pipe can be guaranteed, and the inner supporting parts are elastically connected with the outer pipe, so that the inner pipe has a certain buffering capability while ensuring that the inner pipe has enough stability. The double-wall pipe is simple in structure, convenient to manufacture and higher in structural stability, and the manufacturing and mounting cost can be effectively reduced.

The invention discloses a wound expansion fixing device for a cardiovascular and cerebrovascular clinical operation, and relates to the technical field of wound expansion devices. The shielding problem is solved. The device specifically comprises a supporting plate fixed to the edge of a sickbed through a fixing piece, one side of the supporting plate is connected with a flaring piece through a driving piece, the flaring piece comprises two push hooks and a drag hook, the push hooks and the drag hook are the same in structure and each comprise two frameworks, and the outer walls of the vertical parts of the two frameworks are fixedly provided with the same arc-shaped connecting column. A plurality of connecting rib columns are fixedly installed on the outer walls of the opposite sides of the two frameworks, and sliding buckles are buckled to the outer walls of the two sides of the push hook and the pull hook located on the same side. The two sets of pushing hooks and the two sets of pulling hooks are used oppositely, after a wound is expanded, the whole pushing hooks and the whole pulling hooks are arranged in the direction perpendicular to the depth direction of the wound, certain space avoiding is conducted, the two sets of pushing hooks and the two sets of pulling hooks are completely vacated, and therefore follow-up blood vessel treatment can be greatly facilitated.

The invention discloses a spliced truck front bumper, comprising a protective shell, an anti-collision bar, a fixing bolt, a front baffle plate, a side baffle plate, a bumper body, a front beam, a connecting rod, an energy absorbing layer, a fixing plate, a buffer plate, a steel bar, a strapping belt, a side beam, a support beam, a rubber layer, a mounting rod, a spring, a rotating screw rod, a nut, a mounting groove and a connecting hole. By providing a bumper body inside the protective housing, and the bumper body is composed of a front member and two side members, so that both the front andside shields of the shield protect the truck head in the event of a collision, The side member is not connected with the front member, and the side member is inclined to both ends of the fixing platethrough the mounting rod, so that the front member is not affected when the truck head is hit on the side, and the mounting rod can be rotated with the fixing plate through the rotating screw rod, and the tail end of the mounting rod is connected with the back of the fixing plate through a spring, so that the side member has cushioning capacity. The invention has the characteristics of good frontside anti-collision effect.

The invention provides a socket, which comprises an insulating shell, conductive silica gel arranged in the insulating shell and a conducting strip arranged on the insulating shell. One end of the conducting strip is electrically connected to the conductive silica gel, and the other end of the conducting strip is extended from the insulating shell to be electrically connected with the outside. According to the socket, the soft conductive silica gel is arranged in the insulating shell, so that a pin of a lamp tube can be easily inserted into the conductive silica gel to arrange the lamp tube on the socket and electrically connect the lamp tube and the socket, and the phenomenon that strong force is required by the arrangement of the lamp tube to crush the lamp tube in the prior art is avoided; and in addition, the conductive silica gel has certain buffer capacity so as to realize a function of protecting the lamp tube.

The invention is a direct acting three-way valve, respectively arranging valve ports A and B on stoppers and valve seat at the two ends of a sleeve, arranging an iron core in a cavity between the two valve ports, where the iron core moves to and fro by the cooperation of return spring and electromagnetic coil to selectively close one valve port by seal stopper on it so as to make the other valve port turned on communicate with the outlet arranged on the valve seat, and a supporting spring is arranged in back of the seal stopper; and the invention is characterized in that: the back of at least one seal stopper is equipped with a sealed cavity and this seal stopper is made with a channel communicating with the corresponding valve port and the sealed cavity. And the invention can assure that the seal stoppers can effectively stop the valve ports and have certain buffering ability without designing springs of larger elasticity and increasing power of electromagnetic coil.

The invention relates to a heavy metal contaminated underground water in-situ repair material, namely an OH-sustained-release agent and a preparation method thereof. According to the repairing material, magnesium hydrate colloid is prepared from magnesium hydrate powder used as a raw material, and Twain 80 and sodium dodecyl sulfate (SDS) used as dispersing agents. The material has the advantages of good fluidity, large specific surface area and high stability, is capable of slowly releasing OH<-1>, has a relatively good treatment effect on a plurality of heavy metal ions, has relatively high migration and dispersion performance in porous medium and is suitable for in-situ restoration of the heavy metal contaminated underground water.

The invention discloses a multi-energy system robust optimization scheduling strategy based on the game theory, and belongs to the technical field of power systems, the multi-energy system comprises a multi-energy system and a scheduling strategy, and the multi-energy system comprises a thermal power generating unit. According to the method, peak clipping and valley filling of uncertain wind and light output and load requirements are achieved through two-stage peak shaving control of the photo-thermal power station and the energy storage power station, then total power output is smoothed, meanwhile, new energy is consumed to the maximum extent, the photo-thermal power station is provided with a heat storage system, stable supply of electric energy can be guaranteed, and therefore the buffering capacity is achieved; when the configured heat storage capacity is large enough, the system can serve as a peak regulation power plant to participate in scheduling of a multi-energy system, power production is greatly smoothed, new energy consumption can be effectively promoted, and the system is one of important technologies for achieving high-proportion new energy grid connection. And the new energy consumption is improved to the greatest extent while the operation flexibility and reliability of the system are improved.

The invention relates to the technical field of steel slag micro-powder processing, in particular to a feeding and screening device for a powder concentrator, which comprises a shell, a control structure for controlling feeding and discharging of coarse steel slag micro-powder is connected onto the shell, a screening structure is connected onto the shell, a cleaning structure is connected onto the shell, and the cleaning structure is connected onto the shell. The shell is connected with a buffer structure, a material returning structure and a rubbing structure; the control structure facilitates uniform feeding and discharging of the steel slag micro-powder coarse materials, the screening structure can screen out the large steel slag micro-powder coarse materials, the buffering structure can effectively prevent the steel slag micro-powder coarse materials from impacting the screening structure, and the material returning structure can discharge the large steel slag micro-powder coarse materials. And meanwhile, diffusion of steel slag micro powder raised in the shell is effectively avoided, the scraping structure can scrape the material returning structure, so that normal work of the material returning structure is maintained, the screening structure can be cleaned through the cleaning structure, and the screening quality is guaranteed.

The invention discloses a tube opening instrument for a medical examination laboratory. To-be-opened tube fixing frames are arranged for rapidly assembling and disassembling to-be-opened tubes, so that the burden of workers is reduced. The to-be-opened tube fixing frames are clamped with springs, so that a buffer capacity is achieved, and breaking caused by excessive clamping of the to-be-opened tubes is avoided. A tube opening seat base, a tube opening seat and a base are arranged, so that the height and position of tube opening heads are adjustable, the tube opening instrument can be used for uncapping the to-be-opened tubes with different sizes and lengths, and the use range and practicability of the tube opening instrument are improved. The tube opening instrument can be used for conducting uncapping operation on a single to-be-opened tube and can also conduct the uncapping operation on multiple to-be-opened tubes, and the interiors of the to-be-opened tubes are prevented against contamination. The tube opening heads are arranged, fatigue caused by frequently opening the to-be-opened tubes and contamination of PCR tubes caused by opening the tubes through desk corners and the like are avoided; and the to-be-opened tube fixing frames can be used for stably clamping the to-be-opened tubes, so that the situation that internal liquid shakes and splashed out due to manual opening is avoided.

The invention discloses a reinforced overhead insulated cable, which belongs to the field of power transmission and comprises a protective layer, wherein two ends of the protective layer are providedwith clamping mechanisms which are matched with each other, a rubber layer is fixedly installed and connected in the protective layer, a reinforcing layer is arranged in the rubber layer, three groupsof conductive wire tubes are installed in the reinforcing layer at equal intervals, and the reinforcing layer is filled with an insulating filler; the clamping mechanism comprises a clamping sleeve and a threaded joint; the clamping sleeve is fixedly connected to the left side of the protective layer; the threaded joint is fixedly connected to the right side of the protective layer; a threaded groove is formed in the clamping sleeve in a clamping manner, and the threaded groove is in mutual threaded connection with the threaded joint; and the left side of the clamping sleeve is fixedly connected with a fixing ring. The cable has the advantages that the strength is high, the electric power transportation is stable, meanwhile, the flame-retardant capability is good, the service life is long, the installation and the replacement are convenient, and the stability and the convenience of the electric power transportation can be effectively improved.

The invention discloses an automotive suspension ball structure with the high interference fit degree. The automotive suspension ball structure with the high interference fit degree comprises a ball cup and a connecting arm welded to one side of the ball cup. A ball groove is formed in the top of the ball cup, and a ball is movably mounted in the ball groove. A ball arm is welded to the top of the ball, and an abrasion-resistant plate which is located in the ball groove is arranged on the two sides and below the ball. The side, close to the ball, of the abrasion-resistant plate is slidably connected with the ball, one end of a connecting mechanism is welded to the side, away from the ball, of the abrasion-resistant plate, and the other end of the connecting mechanism is welded to the inner wall of the ball groove. The connecting mechanism comprises a base plate welded to the inner wall of the ball groove, and a fixed base is welded to the side, close to the ball, of the base plate. The automotive suspension ball structure with the high interference fit degree has the buffering capacity and can buffer vibrating force, the situation that the interference fit degree is changed under the influence of the vibrating force is avoided, and the transmission stability between a steering direction device and a steering wheel is prevented from being affected; and the interference fit degree can be increased, the structure is simple, and cost is low.

The invention discloses an anti-port-damage industrial Ethernet switch, which includes a body. Multiple network cable ports are installed by inserting in a side of the body. An Ethernet circuit boardis fixedly installed in the body. Each network cable port includes a port base plate welded onto the Ethernet circuit board, the port base plate is covered with a port cover, and a network cable socket mechanism is installed in a sliding manner between the port cover and the port base plate. An anti-pulling bunching mechanism is installed by inserting on one side, equipped with the network cable ports, of the body. Network cable connectors are installed by inserting in the anti-pulling bunching mechanism. The anti-pulling bunching mechanism makes network cables in order and reduces the damagepossibility of the network cable ports caused by the pulling between the network cables. An anti-pulling guard plate fixedly inserts the network cable connectors into the network cable ports to avoidthe damage possibility of the network cable ports caused by the shaking of the network cable connectors. The elastic plugging / pulling of the network cable ports reduces the damage possibility of the network cable ports caused by rigid plugging / pulling.

The invention discloses a clean type quick-frozen food forming device, which comprises a hollow cutting table, a driving motor is fixed inside the hollow cutting table, and a first gear is fixed on the output shaft of the driving motor, and the first gear is located in the hollow cutting table. The inside of the table, and the two sides of the first gear are engaged with the second gear, the second gear is located inside the hollow cutting table, and the top of the second gear is fixed with a rotating sleeve, and the rotating sleeve is a hollow with one end open. structure. In the present invention, the L-shaped cutting knife can cut food through the cooperative use of the driving motor, the first gear, the second gear, the rotating sleeve, the threaded rod, the fixing plate, the mounting shell and the connecting seat, which not only saves time and effort, but also saves time and effort. Moreover, the structure is simple and the manufacturing cost is low. Meanwhile, the spring provided makes the L-shaped cutting knife have a certain cushioning capacity during cutting, thereby prolonging the service life of the L-shaped cutting knife.

The invention discloses a dustproof spinning needle file which comprises a needle file body. Mounting holes are formed in the top end of a first mounting plate, spinning machine needles are embedded inside the mounting holes, a ceramic gasket is arranged on one side of each mounting hole, a compression-resistant pad is embedded at the top end of the second mounting plate, placement grooves are formed inside the second mounting plate, a spring is embedded inside each placement groove, a grid plate is arranged at the bottom end of the second mounting plate, a storage box is arranged at the bottom end of the second mounting plate, and an electrostatic generating plate is arranged inside the storage box. The mounting holes are formed in the top end of the first mounting plate, the spinning machine needles are embedded inside the mounting holes, and each ceramic gasket is arranged on one side of the corresponding mounting hole, so that accumulation of dust and textile residue are prevented, and pollution of textiles is avoided; the grid plate brings convenience to some dust and textile residue to leaking into the storage box, so that convenience is brought to centralized treatment; through the electrostatic generating plate, the dustproof spinning needle file has certain adsorption capacity, so that dust prevention efficiency is improved.

The invention relates to the technical field of leveling machines for broken stone roads, in particular to a broken stone leveling device based on internal punching pressure for the broken stone roads. The technical problem that the broken stone roads cannot be conveniently leveled by a press machine is solved. The broken stone leveling device comprises a front machine box; a thrust mechanism is fixedly connected to the back face of the front machine box; a driving mechanism is arranged at the top of the inner wall of the front machine box; two sides of the bottom of the driving mechanism arefixedly connected with the two sides of the inner wall of the front machine box correspondingly; and movable driving devices are fixedly connected to two sides of the front machine box. When smashingteeth are in contact with broken stones, a rod jaw is cooperated, and therefore contacting areas between the smashing teeth and the stones are increased, the stones can be smashed more thoroughly andmore comprehensively; and intervals between the rod jaw and the smashing teeth are reserved to reduce resistance when a hollow roller rotates.